US3741138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing equipment for simultaneously sewing a plurality of buttonholes
Assignee: Kochs Adler AG
•
Filing: 1971-03-26
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Granted: 1973-06-26
•
Expires: 1991-03-26
Abstract
Abstract A sewing device provided with a plurality of spaced zig-zag sewing machine units, wherein each of the units includes a reciprocating needle, controlling devices for the lateral movements of the needle bar carrying the needle, for the stitch field position, workpiece clamping and moving elements for displacement of the workpiece during the sewing process for the purpose of simultaneously sewing a number of stitch forms, especially buttonholes in a workpiece, and with a separately arranged gearing which is driven by a stop electromotor and having a main driven shaft for driving the sewing machine units, two additional driving shafts for controlling the lateral movements of the needle bars and the movements of the workpiece clamping elements for each of the sewing machine units. The sewing device is further provided with thread break detection devices for supervising the threads of each of the sewing machine units whereby, after ascertaining a thread failure in one or more sewing machine units after termination of the sewing cycle, those sewing machine units will be uncoupled from their driving and will remain together with the workpiece clamping means in a lowered position upon the workpieces, while the driving connection of the sewing machine units showing a thread failure remains coupled till the buttonholes are produced correctly during a renewed sewing cycle. In the preferred embodiment, the device is provided with sewing machine units in which the needle penetrates the workpiece from the bottom to the top. The sewing machine units are slidably mounted upon two supporting rods which are secured in the gearing.
Inventors
- 👤 A Heimann
- 👤 W Sugland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:04
CPC Classifications
D; D05; D05B; D05B3/00; D05B3/06; D05B51/00
Claims Analysis
Total Claims: 75
Claim 1
Independent Claim
381 words
Sewing equipment for simultaneously sewing a plurality of stitch figures in a workpiece comprising in combination, 1 a frame (1), 2. a plurality of spaced zig-zag sewing machine units (5-5e) arranged side by side in said frame (1), each of said sewing units (5-5e) including a. stitch forming elements comprising a 1. an endwise reciprocating and lateral vibrating needle bar (140) carrying a needle (139), and a 2. a rotary hook (142), b. a main shaft (146) for driving said needle bar (140) and said rotary hook (142) c. control means (156) for producing zig-zag stitches, d. control means (164) for controlling the stitching width and the position of stitches, and e. workpiece clamping means (197) adapted to hold and guide a workpiece beneath said needle (139), 3. a gearing (6) separately arranged from said sewing machine units (5-5e) and provided with f. a main driven shaft (27) for driving said main shafts (146) of said sewing machine units (5-5e), g. a controlling and moving means (47) for said workpiece clamping means (197), h. first and second additional rotary driven shafts (46, 34) adapted to cooperate with said control means (156) for producing zig-zag stitches and said control means (164) for controlling the stitch width and the position of stitches, 4. driving means (7) for driving said gearing (6) and said zigzag sewing machine units (5-5e), 5. clutch coupling means (243) between said main shaft (146) for driving said needle bar (140) and said rotary hook (142) and said main driven shaft (27) for driving said main shafts (146) of said sewing machine units (5-5e), 6. operating means for engaging and disengaging said clutch coupling means (243), and 7. thread detection means (203) assigned to each of said sewing machine units (5-5e) and controlling said operating means for engaging and disengaging said clutch coupling means (243) and said workpiece clamping means (197), for preventing a lifting of all of said clamping mans (197) and a disconnection of such sewing machine units in which thread failure occurs before termination of a sewing cycle from said driving means and to disconnect such sewing machine units showing no thread failure until after correcting the thread failure, said sewing machine units being still connected having executed the provided sewing work in a repeated sewing cycle.
Claim 2
Dependent Claim
381 words
Sewing equipment for simultaneously sewing a plurality of stitch figures in a workpiece comprising in combination, 1 a frame (1), 2. a plurality of spaced zig-zag sewing machine units (5-5e) arranged side by side in said frame (1), each of said sewing units (5-5e) including a. stitch forming elements comprising a 1. an endwise reciprocating and lateral vibrating needle bar (140) carrying a needle (139), and a 2. a rotary hook (142), b. a main shaft (146) for driving said needle bar (140) and said rotary hook (142) c. control means (156) for producing zig-zag stitches, d. control means (164) for controlling the stitching width and the position of stitches, and e. workpiece clamping means (197) adapted to hold and guide a workpiece beneath said needle (139), 3. a gearing (6) separately arranged from said sewing machine units (5-5e) and provided with f. a main driven shaft (27) for driving said main shafts (146) of said sewing machine units (5-5e), g. a controlling and moving means (47) for said workpiece clamping means (197), h. first and second additional rotary driven shafts (46, 34) adapted to cooperate with said control means (156) for producing zig-zag stitches and said control means (164) for controlling the stitch width and the position of stitches, 4. driving means (7) for driving said gearing (6) and said zigzag sewing machine units (5-5e), 5. clutch coupling means (243) between said main shaft (146) for driving said needle bar (140) and said rotary hook (142) and said main driven shaft (27) for driving said main shafts (146) of said sewing machine units (5-5e), 6. operating means for engaging and disengaging said clutch coupling means (243), and 7. thread detection means (203) assigned to each of said sewing machine units (5-5e) and controlling said operating means for engaging and disengaging said clutch coupling means (243) and said workpiece clamping means (197), for preventing a lifting of all of said clamping mans (197) and a disconnection of such sewing machine units in which thread failure occurs before termination of a sewing cycle from said driving means and to disconnect such sewing machine units showing no thread failure until after correcting the thread failure, said sewing machine units being still connected having executed the provided sewing work in a repeated sewing cycle.
Claim 3
Dependent Claim
138 words
a plurality of spaced buttonhole sewing machine units (5-5e) arranged in said frame (1), each of said buttonhole sewing machine units including a. a casing (134) provided with a standard (145), and b. an overhanging arm (143) c. a main shaft (146) pivoted in said casing (134), d. means for forming buttonholes, including d1. an endwise reciprocating and laterally vibrating needle bar (140) arranged in said casing (134) and driven by said main shaft (146), d2. a rotary hook (142) pivoted in said overhanging arm (143) and in driving connection with said main shaft (146), d3. workpiece clamping means (197) adapted to hold and to guide a workpiece, and d4. control means (156, 164) for controlling the lateral vibratory movements of said needle bar (140 for producing zig-zag stitches and the stitching width and the position of stitches,
Claim 4
Dependent Claim
138 words
a plurality of spaced buttonhole sewing machine units (5-5e) arranged in said frame (1), each of said buttonhole sewing machine units including a. a casing (134) provided with a standard (145), and b. an overhanging arm (143) c. a main shaft (146) pivoted in said casing (134), d. means for forming buttonholes, including d1. an endwise reciprocating and laterally vibrating needle bar (140) arranged in said casing (134) and driven by said main shaft (146), d2. a rotary hook (142) pivoted in said overhanging arm (143) and in driving connection with said main shaft (146), d3. workpiece clamping means (197) adapted to hold and to guide a workpiece, and d4. control means (156, 164) for controlling the lateral vibratory movements of said needle bar (140 for producing zig-zag stitches and the stitching width and the position of stitches,
Claim 5
Dependent Claim
106 words
a plurality of spaced zig-zag sewing machine units (5-5e) arranged side by side in said frame (1), each of said sewing units (5-5e) including a. stitch forming elements comprising a 1. an endwise reciprocating and lateral vibrating needle bar (140) carrying a needle (139), and a 2. a rotary hook (142), b. a main shaft (146) for driving said needle bar (140) and said rotary hook (142) c. control means (156) for producing zig-zag stitches, d. control means (164) for controlling the stitching width and the position of stitches, and e. workpiece clamping means (197) adapted to hold and guide a workpiece beneath said needle (139),
Claim 6
Dependent Claim
106 words
a plurality of spaced zig-zag sewing machine units (5-5e) arranged side by side in said frame (1), each of said sewing units (5-5e) including a. stitch forming elements comprising a 1. an endwise reciprocating and lateral vibrating needle bar (140) carrying a needle (139), and a 2. a rotary hook (142), b. a main shaft (146) for driving said needle bar (140) and said rotary hook (142) c. control means (156) for producing zig-zag stitches, d. control means (164) for controlling the stitching width and the position of stitches, and e. workpiece clamping means (197) adapted to hold and guide a workpiece beneath said needle (139),
Claim 7
Dependent Claim
30 words
Sewing equipment as claimed in claim 1, wherein said controling and moving means for said workpiece clamping means (197) includes a control disk (47) performing one revolution per sewing cycle.
Claim 8
Dependent Claim
266 words
a plurality of buttonhole sewing machine units (5-5e) arranged side by side in said frame (1), each of said buttonhole sewing machine units (5-5e) including a. a casing (134) provided with a standard (145), b. an overhanging arm (143) pivoted on said standard (145), c. stitch forming elements comprising c1. an endwise reciprocatory and lateral vibratory needle bar (140) arranged in said casing (134), c2. a thread carrying needle (139) in said needle bar (140), c3. a rotary hook (142) pivoted in said overhanging arm (143) d. driving means for said needle bar (140) and said rotary hook (142), including d1. a main shaft (146) pivoted in said casing (134) for driving said needle bar (140), d2. a hook driving shaft (149) pivoted in said overhanging arm (143), and d3. transmitting means (150) between said main shaft (146) and said hook driving shaft (149), e. means for forming buttonholes in a workpiece, comprising e1. control means (156) adapted to control the lateral vibratory movements of said needle bar (140) for producing zig-zag stitches, e2. control means (164) adapted to control the vibrational amplitude of said needle bar (140) for producing the stitching width and the position of stitches, and e3. a workpiece clamping means (197) adapted to hold and to guide a workpiece, f. an arresting device (272) adapted to stop said needle (139) at a position beyond the workpiece after termination of a sewing cycle, g. a clutch coupling (243) between said buttonhole sewing machine units (5-5e) and said arresting device (272), h. an operating device (259) for engaging and disengaging said clutch coupling (243),
Claim 9
Dependent Claim
266 words
a plurality of buttonhole sewing machine units (5-5e) arranged side by side in said frame (1), each of said buttonhole sewing machine units (5-5e) including a. a casing (134) provided with a standard (145), b. an overhanging arm (143) pivoted on said standard (145), c. stitch forming elements comprising c1. an endwise reciprocatory and lateral vibratory needle bar (140) arranged in said casing (134), c2. a thread carrying needle (139) in said needle bar (140), c3. a rotary hook (142) pivoted in said overhanging arm (143) d. driving means for said needle bar (140) and said rotary hook (142), including d1. a main shaft (146) pivoted in said casing (134) for driving said needle bar (140), d2. a hook driving shaft (149) pivoted in said overhanging arm (143), and d3. transmitting means (150) between said main shaft (146) and said hook driving shaft (149), e. means for forming buttonholes in a workpiece, comprising e1. control means (156) adapted to control the lateral vibratory movements of said needle bar (140) for producing zig-zag stitches, e2. control means (164) adapted to control the vibrational amplitude of said needle bar (140) for producing the stitching width and the position of stitches, and e3. a workpiece clamping means (197) adapted to hold and to guide a workpiece, f. an arresting device (272) adapted to stop said needle (139) at a position beyond the workpiece after termination of a sewing cycle, g. a clutch coupling (243) between said buttonhole sewing machine units (5-5e) and said arresting device (272), h. an operating device (259) for engaging and disengaging said clutch coupling (243),
Claim 10
Dependent Claim
198 words
a gearing (6) separately arranged from said buttonhole sewing machine units (5-5e) and including i. a gear box (20) j. supporting rods (21, 22) secured to said gear box (20) and carrying said casing (134) of said buttonhole sewing machine units (5-5e), said rods (21, 22) being supported in said frame (1), k. a main driven shaft (27) for driving said main shafts (146) pivoted in said casings (134) for driving said needle bars (140), l. a first additional driven shaft (46) adapted to drive said control means (164) for controlling the vibrational amplitudes of said needle bars (140) for producing the stitching width and the position of stitches, m. a second additional driven shaft (34) adapted to drive said control means (156) for controlling the lateral vibratory movements of said needle bars (140) for producing zig-zag stitches, n. transmitting means between said main driven shaft (27) and said additional driven shafts (34, 46), o. means for driving said workpiece clamping means (197), p. means adapted to vary the length of the reciprocating motions of said workpiece clamping means (197) for producing buttonholes of variable length, q. means adapted to vary the number of stitches per button-hole, and
Claim 11
Dependent Claim
198 words
a gearing (6) separately arranged from said buttonhole sewing machine units (5-5e) and including i. a gear box (20) j. supporting rods (21, 22) secured to said gear box (20) and carrying said casing (134) of said buttonhole sewing machine units (5-5e), said rods (21, 22) being supported in said frame (1), k. a main driven shaft (27) for driving said main shafts (146) pivoted in said casings (134) for driving said needle bars (140), l. a first additional driven shaft (46) adapted to drive said control means (164) for controlling the vibrational amplitudes of said needle bars (140) for producing the stitching width and the position of stitches, m. a second additional driven shaft (34) adapted to drive said control means (156) for controlling the lateral vibratory movements of said needle bars (140) for producing zig-zag stitches, n. transmitting means between said main driven shaft (27) and said additional driven shafts (34, 46), o. means for driving said workpiece clamping means (197), p. means adapted to vary the length of the reciprocating motions of said workpiece clamping means (197) for producing buttonholes of variable length, q. means adapted to vary the number of stitches per button-hole, and
Claim 12
Dependent Claim
61 words
a gearing (6) separately arranged from said buttonhole sewing machine units (5-5e) and provided with e. a main driven shaft (27) for driving said buttonhole sewing machine units (5-5e), and f. additional rotary driven shaftS (34, 46) adapted to cooperate with said main driven shaft (27) and said control means (156, 164) for controlling the movements of said needle bars (140),
Claim 13
Dependent Claim
61 words
a gearing (6) separately arranged from said buttonhole sewing machine units (5-5e) and provided with e. a main driven shaft (27) for driving said buttonhole sewing machine units (5-5e), and f. additional rotary driven shaftS (34, 46) adapted to cooperate with said main driven shaft (27) and said control means (156, 164) for controlling the movements of said needle bars (140),
Claim 14
Dependent Claim
140 words
Sewing equipment as claimed in claim 1, wherein said control-ing and moving means for said workpiece clamping means (197) includes a control disk (47) performing one revolution per sewing cycle, and said gearing (6) is further provided with a shaft (44) carrying said control disk (47), a first gear wheel (43) secured to said shaft (44) carrying said control disk (47), a second gear wheel (42) meshing with said first gear wheel (43) and in driven connection with said second additionally rotary driven shaft (34) adapted to cooperate with said control means (156) for producing zig-zag stitches, and a reduction means (35) between said main driven shaft (27) and said second additionally rotary driven shaft (34) driven at a ratio of two to one, said gear wheels (42, 43) being interchangeable for changing the number of stitches per sewing cycle.
Claim 15
Dependent Claim
82 words
a gearing (6) separately arranged from said sewing machine units (5-5e) and provided with f. a main driven shaft (27) for driving said main shafts (146) of said sewing machine units (5-5e), g. a controlling and moving means (47) for said workpiece clamping means (197), h. first and second additional rotary driven shafts (46, 34) adapted to cooperate with said control means (156) for producing zig-zag stitches and said control means (164) for controlling the stitch width and the position of stitches,
Claim 16
Dependent Claim
82 words
a gearing (6) separately arranged from said sewing machine units (5-5e) and provided with f. a main driven shaft (27) for driving said main shafts (146) of said sewing machine units (5-5e), g. a controlling and moving means (47) for said workpiece clamping means (197), h. first and second additional rotary driven shafts (46, 34) adapted to cooperate with said control means (156) for producing zig-zag stitches and said control means (164) for controlling the stitch width and the position of stitches,
Claim 17
Dependent Claim
28 words
clutch coupling means (243) between said main shafts (146) pivoted in said casings (134) and said main driven shaft (27) for driving said buttonhole sewing machine units (5-5e),
Claim 18
Dependent Claim
28 words
clutch coupling means (243) between said main shafts (146) pivoted in said casings (134) and said main driven shaft (27) for driving said buttonhole sewing machine units (5-5e),
Claim 19
Dependent Claim
83 words
Sewing equipment as claimed in claim 1, wherein said controling and moving means for said workpiece clamping means (197) includes a control disk (47) performing one revolution per sewing cycle, and said gearing (6) is further provided with a shaft (44) carrying said control disk (47), and a drive gear means (45) for driving said first additionally rotary driven shaft (46) adapted to control the stitching width and the position of stitches by said shaft (44) at a ratio of one to one.
Claim 20
Dependent Claim
15 words
driving means (7) for driving said gearing (6) and said zig-zag sewing machine units (5-5e),
Claim 21
Dependent Claim
15 words
driving means (7) for driving said gearing (6) and said zig-zag sewing machine units (5-5e),
Claim 22
Dependent Claim
14 words
a stop electromotor for driving said main driven shaft (27) of said gearing (6).
Claim 23
Dependent Claim
14 words
a stop electromotor for driving said main driven shaft (27) of said gearing (6).
Claim 24
Dependent Claim
38 words
clutch coupling means (243) between said main shaft (146) for driving said needle bar (140) and said rotary hook (142) and said main driven shaft (27) for driving said main shafts (146) of said sewing machine units (5-5e),
Claim 25
Dependent Claim
38 words
clutch coupling means (243) between said main shaft (146) for driving said needle bar (140) and said rotary hook (142) and said main driven shaft (27) for driving said main shafts (146) of said sewing machine units (5-5e),
Claim 26
Dependent Claim
11 words
operating means for engaging and disengaging said clutch coupling means (243),
Claim 27
Dependent Claim
11 words
operating means for engaging and disengaging said clutch coupling means (243),
Claim 28
Dependent Claim
70 words
Sewing equipment as claimed in claim 1, wherein said controlling and moving means Includes a control disk (47) received in said gearing (6) and performing one revolution per sewing cycle for reciprocating said workpiece clamping means (197), a transmitting means between said control disk (47) and said workpiece clamping means (197), and an adjustable device adapted to vary the length of the reciprocating motions of said workpiece clamping means (197).
Claim 29
Dependent Claim
15 words
driving means for driving said gearing (6) and said buttonhole sewing machine units (5-5e), and
Claim 30
Dependent Claim
15 words
driving means for driving said gearing (6) and said buttonhole sewing machine units (5-5e), and
Claim 31
Dependent Claim
12 words
operating means for engaging and disengaging said clutch coupling means (243), and
Claim 32
Dependent Claim
12 words
operating means for engaging and disengaging said clutch coupling means (243), and
Claim 33
Dependent Claim
172 words
Sewing equipment as claimed in claim 5, wherein said control disk (47) is provided with a control groove (48), and said transmitting means between said control disk (47) and said workpiece clamping means (197) comprises a double-armed lever (49, 54) pivoted in said gearing (6), a roller (50) pivoted on one arm (49) of said double-armed lever (49, 54) and being in engagement with said control groove (48), a rocking lever (59) pivoted in said gearing (6) and articulated to the other arm (54) of said double-armed lever (49, 54), a steering rod (63) for moving said workpiece clamping means (197), and a connecting piece (62) between said rocking lever (59) and said steering rod (63), and wherein said adjustable device adapted to vary the length of the reciprocating motions of said workpiece clamping means (197) includes a sliding block (57) movably clamped and pivotally mounted on said other arm (54) of said double-armed lever (49, 54) and a guide (58) in said rocking lever (59) for receiving said sliding block (57).
Claim 34
Dependent Claim
140 words
Sewing equipment as claimed in claim 1, wherein said gearing (6) is further provided with two supporting rods (21, 22) running parallel with said main driven shaft (27) and said additionally rotary driven shafts (34, 46), for carrying said gearing (6) and said sewing units (5-5e) being displaceably and clampably mounted on said supporting rods (21, 22) and said additional driven shafts (34, 46), and in which said frame (1) comprises a left side panel (2) and a right side panel (3) having bearings (24, 25) for pivotally receiving one (22) of said supporting rods (21, 22), and said frame (1) is provided with a lifting device (15) for lifting said gearing (6) with said sewing machine units (5-5e) about said one supporting rod (22) pivoted in said bearings (24, 25), and means (297) for driving said lifting device (15).
Claim 35
Dependent Claim
102 words
thread detection means (203) assigned to each of said sewing machine units (5-5e) and controlling said operating means for engaging and disengaging said clutch coupling means (243) and said workpiece clamping means (197), for preventing a lifting of all of said clamping mans (197) and a disconnection of such sewing machine units in which thread failure occurs before termination of a sewing cycle from said driving means and to disconnect such sewing machine units showing no thread failure until after correcting the thread failure, said sewing machine units being still connected having executed the provided sewing work in a repeated sewing cycle.
Claim 36
Dependent Claim
102 words
thread detection means (203) assigned to each of said sewing machine units (5-5e) and controlling said operating means for engaging and disengaging said clutch coupling means (243) and said workpiece clamping means (197), for preventing a lifting of all of said clamping mans (197) and a disconnection of such sewing machine units in which thread failure occurs before termination of a sewing cycle from said driving means and to disconnect such sewing machine units showing no thread failure until after correcting the thread failure, said sewing machine units being still connected having executed the provided sewing work in a repeated sewing cycle.
Claim 37
Dependent Claim
100 words
thread detection means (203) assigned to each of said sewing machine units (5-5e) and controlling said operating means for engaging and disengaging said clutch coupling means (243) and said workpiece clamping means (197), for preventing a lifting of all of said clamping means (197) and to prevent a disconnection of such sewing machine units showing a thread failure before termination of a sewing cycle from the driving means, and to disconnect such sewing machine units showing no thread failure after clearing the thread failure, said sewing machine units being still connected having formed the buttonhole in a repeated sewing cycle.
Claim 38
Dependent Claim
100 words
thread detection means (203) assigned to each of said sewing machine units (5-5e) and controlling said operating means for engaging and disengaging said clutch coupling means (243) and said workpiece clamping means (197), for preventing a lifting of all of said clamping means (197) and to prevent a disconnection of such sewing machine units showing a thread failure before termination of a sewing cycle from the driving means, and to disconnect such sewing machine units showing no thread failure after clearing the thread failure, said sewing machine units being still connected having formed the buttonhole in a repeated sewing cycle.
Claim 39
Dependent Claim
157 words
In a sewing equipment as claimed in claim 1, wherein each of said sewing machine units (5-5e) is provided with a casing (134) receiving said control means (156, 164) for producing zig-zag stitches and controlling the stitch width and the position of stitches, a hinged coupling (173) arranged between said additional rotary driven shafts (34, 46) and said control means (154, 164) for each of said sewing machine units (5-5e), said coupling comprising a coupler link (174) pivoted in said casing (134) of each of said sewing machine units (5-5e), a driving disk (175) slidably fastened to said additional rotary driven shafts (34, 46), crankpins (181, 190) inserted in said coupler link (174) carrying said control means (156, 164) for producing zig-zag stitches respectively controlling the stitch width and the position of stitches, and surrounding said shafts (34, 46) with radial clearance in said driving disk (175), and a hinge connection (194) between said crankpins (181, 190).
Claim 40
Dependent Claim
169 words
In a sewing equipment as claimed in claim 1, a common intermediate shaft (30) driven by said main driven shaft (27) of said gearing (6), and a clutch shaft (242) driven by said common intermediate shaft (30) at a speed ratio of one to one and connected with said main shaft (146) of said sewing machine units (5-5e) by means of said clutch coupling (243) assigned to each of said units (5-5e), said clutch coupling (243) comprising a first clutch half (246) secured to said main shafts (146) of said sewing machine units (5-5e) and provided with a groove (253), a follower means (251) radially slidable arranged in said groove (253) and actuated by said operating means (259) controlled by said thread detection meAns (203), a second clutch half (249) secured to said clutch shaft (242) and provided with a recess (250) for receiving said follower means (251), and a spring (257) for engaging said follower means (251) with said recess (250) when said operating means (259) is unactuated.
Claim 41
Dependent Claim
100 words
In a sewing equipment as claimed in claim 1, wherein said operating means for engaging and disengaging said clutch coupling means (243) comprises a lifting shaft (114), a driving means (11) adapted to actuate said lifting shaft (114) and controlled by said thread detection means (203) an unlocking device (260) for each of said operating means (259), for interrupting the connection between said lifting shaft (114) and said operating means (259), and a driving member (262) attached to each of said unlocking devices (260) and controlled by said thread detection means (203), for engaging and disengaging said clutch couplings (243).
Claim 42
Dependent Claim
154 words
In a sewing equipment as claimed in claim 10, wherein said unlocking device (260) for each of said operating devices (259) for interrupting the connections between said lifting shaft (114) and said operating means (259) comprises an unlocking plate (261) having a guide groove (264) and a horn (265), a thrust bolt (258) pivoted to said unlocking plate (261), a forked lever (269) fastened to said lifting shaft (114) actuated by said driving member (11), a pin (268) inserted in said forked lever (269) and engaging said guide groove (264) in said unlocking plate (261), and a spring (270) bearing upon said unlocking plate (261), said driving member (262) being forced to engage with said horn (265) of said unlocking plate (261) after actuation for the purpose of preventing disconnection of said clutch coupling (243) by means of said pin (268) inserted in said forked lever (269) and cooperating with said guide groove (264).
Claim 43
Dependent Claim
140 words
In a sewing equipment as claimed in claim 1, wherein said thread detection means (203) comprises a microswitch (204) secured to said sewing machine units (5-5e), a thread feeler lever (205) carried by the indexing shaft of said microswitch (204), a control mechanism (127, 202) for bringing said thread feeler levers (205) in contact with the needle threads (208) before termination of a sewing cycle, including a lifting shaft (126), an operating member (127) for actuating said lifting shaft (126), operating levers (198) secured to said lifting shaft (126), connecting rods (200) between said operating levers (198) and said thread feeler levers (205), a first contact disk (73) revolving with said controling and moving means (47) for said workpiece clamping means (197), and a control contact (79) actuated by said first contact disk (73) and controlling said operating member (127).
Claim 44
Dependent Claim
109 words
In a sewing equipment as claimed in claim 1, wherein each of said sewing machine units (5-5e) is provided with a main shaft (146), a clutch shaft (242), a clutch coupling (243) arranged between said main shaft (146) and said clutch shaft (242), and an arresting means (272) arranged on said clutch shaft (242) for stopping said needle (139) beyond a workpiece, and said gearing (6) separately arranged from said sewing machine units (5-5e), is provided with a second contact disk (74) revolving with said controlling and moving means (47), and a second control contact (80) actuated by said second contact disk (74) for controlling said arresting means (272).
Claim 45
Dependent Claim
52 words
A sewing equipment as claimed in claim 13, further provided with a driving member (10) controlled by said second contact disk (74) and said second control contact (80) for a determined time, for commonly unlocking all of said arresting means (272) after starting said sewing equipment and before beginning a sewing cycle.
Claim 46
Dependent Claim
214 words
In a sewing equipment as claimed in claim 1, wherein each of said sewing machine units (5-5e) is provided with said main shaft (146), a clutch shaft (242), said clutch coupling (243) arranged between said main shaft (146) and said clutch shaft (242), an arresting device (272) arranged on said clutch shaft (242) for stopping said needles (139) beyond a workpiece, and said first additional rotary driven shaft (46) driving said control means (164) for controlling the stitch width and the position of stitches, a first control disk (102) secured to said first additional rotary driven shaft (46), said arresting device (272) including a locking disk (273) secured to said clutch shaft (242), a ratchet tooth (274) under tension of a spring (275) and cooperating with said locking disk (273), operating means for said ratchet tooth (274) including a driving member (10) for commonly unlocking said ratchet tooth (274) of said locking disks (273) after starting said sewing equipment, a second control contact (80), and a second contact disk (74) actuating said second control contact (80) for controlling said driving member (10) for a determined time, said first control disk 102 being provided with means for preventing said ratchet tooth (274) from engagement with said locking disk (273) until a sewing cycle is ended.
Claim 47
Dependent Claim
148 words
In a sewing equipment as claimed in claim 15, wherein said first additional rotary driven shaft (46) is provided with a first control disk (102) having a recess (110), a shift lever (284) for actuating said ratchet tooth (274) of said arresting device (272), a lifting shaft (84) actuated by said driving member (10), operating levers (285) secured to said lifting shaft (84) and cooperating with said shift lever (284) actuating said ratchet tooth (274) of each of said arresting devices (272), a pivotally mounted double-armed lever (95), a toggle joint (93) between said lifting shaft (84) and one arm (94) of said double-armed lever (95), a first stitch gauge (99) arranged on the other arm (97) of said double-armed lever (95) and engaging said first control disk (102) and said recess (110), and a spring (100) bearing upon said other arm (97) of said double-armed lever (95).
Claim 48
Dependent Claim
90 words
In a sewing equipment as claimed in claim 16, having a second additional rotary driven shaft (34) a second control disk (101) secured to said second additional rotary driven shaft (34), a control groove (109) in said second control disk (101) having a lifting flank (105) , a second stick gauge (98) laterally swingable mounted on said other arm (97) of said double-armed lever (95) and cooperating with said second control disk (101) and said control groove (109), and a spring (107) acting laterally upon said second stick gauge (98).
Claim 49
Dependent Claim
14 words
Sewing equipment for simultaneously sewing a plurality of buttonholes in a workpiece in combination,
Claim 50
Dependent Claim
14 words
Sewing equipment for simultaneously sewing a plurality of buttonholes in a workpiece in combination,
Claim 51
Dependent Claim
15 words
Sewing equipment for simultaneously sewing a plurality of buttonholes in a workpiece, comprising in combination,
Claim 52
Dependent Claim
15 words
Sewing equipment for simultaneously sewing a plurality of buttonholes in a workpiece, comprising in combination,
Claim 53
Dependent Claim
165 words
In a buttonhole sewing equipment as claimed in claim 19, wherein said device for driving said workpiece clamping means (197) comprises a control disk (47), a shaft (44) carrying said control disk (47) and performing one revolution per sewing cycle, said shaft (44) being mounted in said gear boc (20) and driven by said additional driven shaft (34), a control groove (48) in said control disk (47), a double-armed lever (49, 54) pivotally mounted in said gear box (20), one arm (49) of said double-armed lever (49, 54) engaging said control groove (48), a rocking lever (59) pivotally mounted in said gearing (6), a hinged connection between said rocking lever (59) and the other arm (54) of said double-armed lever (49, 54), a steering rod (63) slidably borne in said casing (134) and said gear box (20), said workpiece clamping means (197) being connected with said steering rod (63), and a connection piece (67) linked between said rocking lever (59) and said steering rod (63).
Claim 54
Dependent Claim
212 words
In a buttonhole sewing equipment as claimed in claim 19, wherein said device for driving said workpiece clamping means (197) comprises a control disk (47), a shaft (44) carrying said control disk (47) and performing one revolution per sewing cycle, said shaft (44) being mounted in said gear box (20) and driven by said second additional driven shaft (34), in said control disk (47) having a control groove (48), a double-armed lever (49, 54) pivotally mounted in said gear box (20), one arm (49) of said double-armed lever (49, 54) engaging said control groove (48), a rocking lever (59) pivotally mounted in said gearing (6), a steering rod (63) slidably borne in said casing (134) and said gear box (20) and linked to said rocking lever (59), said workpiece clamping means (197) being connected with said steering rod (63), and said device adapted to vary the length of the reciprocating motions of said workpiece clamping means (197) for producing buttonholes of variable length having a T-shaped groove (55) in the other arm (54) of said double-armed lever (49, 54) a sliding block (57) movably clamped and pivoted in said groove (55) of said other arm (54), and a guide (58) in said rocking lever (59) for slidably receiving said sliding block (57).
Claim 55
Dependent Claim
169 words
In a buttonhole sewing equipment as claimed in claim 19, wherein said means for driving said workpiece clamping means (197) comprises a control disk (47), a shaft (44) carrying said control disk (47) and performing one revolution per buttonhole, a steering rod (63) connected with said workpiece clamping means (197) and controlled by said control disk (47), and said means adapted to vary the number of stitches per buttonhole includes a first gear wheel (43) secured to said shaft (44) carrying said control disk (47) for driving said workpiece clamping means (197), a second gear wheel (42) meshing with said first gear wheel (43), a shaft (41) carrying said second gear wheel (42), a reduction and transmitting means between said shaft (41) carrying said second gear wheel (42) and said second additional driven shaft (34), and a drive gear means (45) between said shaft (44) carrying said control disk 47 and said first additional driven shaft (46), said gear wheels (43, 42) being interchangeable to vary the gear reduction.
Claim 56
Dependent Claim
65 words
In a buttonhole sewing equipment as claimed in claim 19, wherein said second additional rotary driven shaft (34) adapted to cooperate with said control means (156) for producing zig.zag stitches is driven at a gear reduction of two to one by said main driven shaft (27) driving said main shafts (146) of said buttonhole sewing machine units (5-5e) at a ratio of one to one.
Claim 57
Dependent Claim
54 words
In a buttonhole sewing equipment as claimed in claim 19, wherein said additional rotary driven shafts (34, 46) are provided with hinged couplings (173) arranged between said shafts (34, 46) and said control means (164) for controlling the stitch width and the position of stitches and said control means (156) for producing zig-zag stitches.
Claim 58
Dependent Claim
92 words
In a buttonhole sewing equipment as claimed in claim 19, wherein said main driven shaft (27) of said gearing (6) is driven by a stop-electromotor (7), an intermediate shaft (30) driven by said main driven shaft (27), a clutch shaft (242) for each of said buttonhole sewing machine units (5-5e), and transmitting means (291, 292, 293) between said intermediate shaft (30) and clutch shafts (242), said clutch couplings (243) being arranged between said clutch shafts (242) and said main shafts (146) pivoted in said caisings (134), for driving said needle bars (140).
Claim 59
Dependent Claim
88 words
In a buttonhole sewing equipment as claimed in claim 19, a common lifting shaft (114) for actuating said operating means (259) associated with each of said clutch couplings (243), controlled driving means (11) adapted to actuate said lifting shaft (114), unlocking means (260) for each of said operating devices, for interrupting the connection between said lifting shaft (114) and said operating devices (259), and controlled driving members (262) for each of said unlocking means (260) of said operating devices (259), for engaging and disengaging said clutch couplings (243).
Claim 60
Dependent Claim
66 words
In a buttonhole sewing equipment as claimed in claim 19, wherein said arresting means (272) for each of said buttonhole sewing machine units (5-5e) and adapted to stop said needles (139) at a position beyond the workpiece after the termination of a sewing cycle are provided with a driving member (10) for commonly unlocking of all of said arresting devices (272) after starting said sewing equipment.
Claim 61
Dependent Claim
60 words
Buttonhole sewing equipment as claimed in claim 19, further provided with a controlled driving member (10) for commonly unlocking of all of said arresting means (272) after starting said sewing equipment, and a synchronizing device for controlling the operative movements of said arresting means (272) in dependence of the positions of said first and second additional driven shafts (46, 34).
Claim 62
Dependent Claim
44 words
In a buttonhole sewing equipment as claimed in claim 19, wherein said overhanging arms (143) are pivoted on said standards (145) of said casings (134), means for holding down and lifting said overhanging arms (143) associated with each of said sewing machine units (5-5e).
Claim 63
Dependent Claim
44 words
Buttonhole sewing equipment as claimed in claim 19, further provided with means for holding down and lifting said overhanging arms (143) pivoted on each of said casing (134), and hand-operated means (217) for lifting and holding said overhanging arms (143 in a raised position.
Claim 64
Dependent Claim
81 words
In a buttonhole sewing equipment as claimed in claim 19, wherein said supporting rods (21, 22) fastened to said gear box (20) and carrying said casing (134) of said buttonhole sewing machine units (5-5e) are supported in said frame (1), bearings (24, 25) attached to said frame (1), one of said supporting rods (22) being pivoted in said bearings (24, 25), and a lifting device (15) to turn said sewing machine units (5-5e) and said gearing (6) in said frame (1).
Claim 65
Dependent Claim
177 words
Buttonhole sewing equipment as claimed in claim 19, further provided with a lifting device (218) for holding down and lifting said overhanging arms (143), including a double-acting electrical driving means (12), an electrical driving member (11) for actuating said operating means (259) for engaging and disengaging said clutch couplings (243), unlocking means (260) for each of said operating means (259) for engaging said clutch couplings (243), including electromagnetic driving members (262), a thread break detection device (203) assigned to each of said sewing machine units (5-5e) and controling said double-acting electrical driving means (12) and said electromagnetic driving members (262) for said unlocking devices (260), for preventing a lifting of all of said overhanging arms (143) by said electrical driving means (12), and to prevent a disconnection of such sewing machine units showing thread failure before termination of a sewing cycle from the driving means, and to disconnect such sewing machine units showing no thread failure after clearing the thread failure, said sewing machine units being still connected having formed the buttonhole in a repeated sewing cycle.
Claim 66
Dependent Claim
249 words
Buttonhole sewing equipment as claimed in claim 19, further comprising a device (218) for holding down and lifting said overhanging arms (143), including a double-acting electrical driving means (12); an electrical driving member (11) for actuating said operating means (259) for engaging and disengaging said clutch couplings (243); unlocking means (260) for each of said operating means (259) for engaging said clutch couplings (243), including electromagnetic driving members (262); said workpiece clamping means (197), including a control disk (47) and a shaft (44) carrying said control disk (47) and performing one revolution per sewing cycle, said shaft (44) being mounted in said gear box (20); a thread break detection device (203) assigned to each of said sewing machine units (5-5e), and including a microswitch (204) for controlling said double-acting electrical driving means (12) and said electromagnetic driving members (262) for said unlocking devices (260); a thread feeler lever (205) cooperating with said microswitch (204); a control mechanism (127, 202) for bringing said thread feeler levers (205) in contact with the threads (208) before the termination of a sewing cycle including a lifting shaft (126), an electromagnet (128) for driving said shaft (126), a connecting rod (200) actuated by said shaft (126) and cooperating with said thread feeler levers (205), a first contact disk (73) mounted on said shaft (44) carrying said control disk (47) for driving said workpiece clamping means (197), and a first control contact (79) cooperating with said first contact disk (73), for controlling said electromagnet (128).
Claim 67
Dependent Claim
366 words
In a buttonhole sewing equipment as claimed in claim 19, wherein each of said buttonhole sewing machine units (5-5e) comprises a main shaft (146), a driven clutch shaft (242), a clutch coupling (243) arranged between said main shaft (146) and said clutch shaft (242), an arresting means (272) arranged on said clutch shaft (242) for stopping said needle (139) beyond a workpiece and including a locking disk (273) secured to said clutch shaft 242); a ratchet tooth (274) being under tension of a spring (275) and cooperating with said locking disk (273); operating means for said ratchet tooth (274) including a controlled driving member (10) for unlocking said ratchet teeth (274) of said locking disks (273) after starting said sewing equipment; a control contact (80) for said driving member (10); a second contact disk (74) cooperating with said control contact (80) for controlling said driving member (10) for a determined time after starting said equipment; a lifting shaft (84) actuated by said driving member (10); shift levers (284) for actuating said ratchet tooth (274) operating levers (285) secured to said lifting shaft (84) for actuating said shift levers (284); and synchronizing means for controlling the operative movements of said arresting means (272) in dependence of the positions of said first and second additional driven shafts (46, 34), said synchronizing device including a first control disk (102) secured to said first additional rotary driven shaft (46) and having a recess (110); a second control disk (101) provided with a control groove (109) and a lifting flank (105) and secured to said second additiona rotary driven shaft (34); a pivotally mounted double-armed lever (95); a Toggle joint (93) between said lifting shaft (84) and one arm (94) of said double-armed lever (95); a first stick gauge (99) attached to the other arm (97) of said double-armed lever (95) and engaging said first control disk (102) and said recess (110); a second stick gauge (98) being laterally swingable mounted on said other arm (97) of said double-armed lever (95) against the tension of a spring (107); and a spring (100) acting upon said double-armed lever (95) for pressing said stick gauges (99, 98) against said control disks (102, 101).
Claim 68
Dependent Claim
90 words
Buttonhole sewing equipment as claimed in claim 25, wherein said intermediate shaft (30) is driven by said main driven shaft (27) at a transmission ratio of one to one by means of a toothed belt (29), and said transmitting means between said intermediate shaft (30) and said clutch shafts (242) including a shaft (294), a first bevel gear (292) a toothed belt (295) between said intermediate shaft (30) and said shaft (294) carrying said first bevel gear (292), and a second bevel gear (291) secured to said clutch shaft (242).
Claim 69
Dependent Claim
148 words
Buttonhole sewing equipment as claimed in claim 25, wherein said clutch couplings (243) arranged between said clutch shafts (242) and said main shafts (146) for driving said needle bars (140) include a first clutch half (246) secured to said main shaft (146); in said first clutch half (246) having a groove (253); a follower means (251) radially slidable arranged in said groove (253) of said first clutch half (246); said first clutch half (246) having a recess (256); an U-shaped shifting member (254) slidably received in said recess (256) and carrying said follower means (251); a second clutch half (249) secured to said clutch shaft (242); said second clutch half (249) having a recess (250) for receiving said follower means (251); and a spring (257) in said first clutch half (246) for biasing said U-shaped shifting member (254) for pressing said follower means (251) into said groove (253).
Claim 70
Dependent Claim
181 words
In a buttonhole sewing equipment as claimed in claim 26, wherein said controlled driving means (11) adapted to actuate said lifting shaft (114) is a double-acting solenoid (13), and said lifting shaft (114) is provided with an actuating lever (115), a coupling member between said actuating lever (115) and saud double-acting solenoid, including a double-armed angle lever (118); an intermediate lever (116) between one arm (117) of said angle lever (118) and said actuating lever (115); hinge means (122) secured to the operating rod (123) of said solenoid (13); and a forked hinge (121) between said hinge means (122) and the other arm (120) of said double-armed angle lever (118), said angle lever (118) being pivoted in such a manner that after energizing one part of said solenoid (13) said one arm (117) of said double-armed lever (118), said intermediate lever (116) and said actuating lever (115) are in a rectilinear running alignment and remain in this position after disenergizing said solenoid (13) and are only removable out of this position by energizing the other side of said double-acting solenoid (13).
Claim 71
Dependent Claim
168 words
Buttonhole sewing equipment as claimed in claim 26, wherein said unlocking device (260) associated with each of said operating devices (259) for interrupting the connection between said lifting shaft (114) and said operating device (259) includes a thrust bolt (258) slidably arranged below said operating device (259) for said clutch coupling (243); an unlocking plate (261) pivoted to said thrust bolt (258) and having a guide groove (264) and a horn (265) for cooperating with said controlled driving member (262); a forked lever (269) fastened to said lifting shaft (114); a pin (268) inserted in said forked lever (269) and engaging said guide groove (264) ins said unlocking plate (261); and a spring (270) bearing upon said unlocking plate (261); said controlled driving member (262) being forced into engagement with said horn (265) of said unlocking plate (261) after actuating for preventing a disconnection of said clutch Coupling (243) by means of said pin (268) inserted in said forked lever (269) and operating within said guide groove (264).
Claim 72
Dependent Claim
91 words
In a buttonhole sewing equipment as claimed in claim 33, wherein each of said devices (218) for holding down and lifting said overhanging arms (143) further includes a double-armed lever (213); a link (11) between one arm of said double-armed lever (213) and the operating rod (212) of said double-acting electrical driving means (12); an actuating rod (215) linked to the other arm (214) of said double-armed lever (213); and a ball pivot (216) arranged in said casings (134) of said sewing machine units (5-5e) for receiving said actuating rod (215).
Claim 73
Dependent Claim
166 words
In a buttonhole sewing equipment as claimed in claim 33, wherein each of said devices (218) for holding down and lifting said overhanging arms (143) includes a double-acting electrical driving means (12); a double-armed lever (213); a link (211) between one arm of said double-armed lever (213) and the operating rod (212) of said double-acting electrical driving means (12); an actuating rod (215) linked to the other arm (214) of said double-armed lever (213); and a ball pivot (216) arranged in the casings (134) of said sewing machine units (5-5e) for receiving said actuating rods (215); and said hand-operated device (217) for lifting and holding said overhanging arms (143) in a raised position includes a link (221) pivoted tp said actuating rod (215) and being under tension of a spring (222); an U-shaped guide groove (223) in said link (221); a supporting bolt (226) penetrating said guide groove (223) and secured to said overhanging arm (143); and a hand lever (231) for actuating said link (221).
Claim 74
Dependent Claim
82 words
A buttonhole sewing equipment as claimed in claim 31, wherein said lifting device (15) for turning said sewing machine units (5-5e) and said gearing (6) in said frame (1) comprises a rod (299) provided with an internal thread and linked to said supporting rod (21); a threaded spindle (298) screwed into said rod (299); a friction disk (297) to take along said spindle (298); an electric motor (16); and a V-belt (296) between said friction disk (297) and said electric motor (16).
Claim 75
Dependent Claim
55 words
In a buttonhole sewing equipment as claimed in claim 19, a gear casing (239) for receiving said arresting device (272) adapted to stop said needle (139) at a position beyond the workpiece, and said clutch coupling (243), a flange connecting said gear casing (239) to said casing (134) of said buttonhole sewing machine units (5-5e).
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |