US3646900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable support and cover flaps for a sewing machine
Assignee: Mefina SA
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Filing: 1970-01-13
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Granted: 1972-03-07
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Expires: 1990-01-13
Abstract
Abstract The sewing machine has flaps hinged to the frame forming a carrying case therewith and are foldable downwards to form a worktable. The flaps are hinged along the base of the machine and are in two portions with connecting hinges enabling the outer edges of the flaps to rest on the base clear of the free arm. The connecting hinges have two hinging axis positions laterally separated and parallelly separated by a slideway, enabling the flaps to form a worktable either flush with the top surface of the free arm or below and clear of the latter. A lug holds the two portions blocked for the packing position of the flaps. A front flap may be one piece or of two hinged portions and attached to the front edge of the base.
Inventors
- 👤 Marcel Fresard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:32
CPC Classifications
D; D05; D05B; D05B77/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
135 words
A sewing machine comprising a frame formed by a base, a column, a lower free arm, an upper arm and a head, flaps provided along the front and sides of said frame, first hinge means connecting said flaps to said base to enable them, when they are applied against the frame to form a case therewith, said flaps being folded down in the operating position of the machine, the flaps shielding the principal sides surfaces of the machine being formed of two parts, an upper part and a lower part, hinged to one another by second hinge means enabling lowering of the two parts of the flaps against one another and the outer edge of the upper part to be supported, in operating position of the machine, on said base thereby clearing the free arm.
Claim 2
Dependent Claim
135 words
A sewing machine comprising a frame formed by a base, a column, a lower free arm, an upper arm and a head, flaps provided along the front and sides of said frame, first hinge means connecting said flaps to said base to enable them, when they are applied against the frame to form a case therewith, said flaps being folded down in the operating position of the machine, the flaps shielding the principal sides surfaces of the machine being formed of two parts, an upper part and a lower part, hinged to one another by second hinge means enabling lowering of the two parts of the flaps against one another and the outer edge of the upper part to be supported, in operating position of the machine, on said base thereby clearing the free arm.
Claim 3
Dependent Claim
155 words
A sewing machine according to claim 1, wherein said second hinge means comprise a device enabling the two parts of the flaps to be selectively hingeable along two parallel axes separated from one another by a distance such that when the two parts are hinged along a first said axis enabling the maximum spacing of one with respect to the other of the said parts, the outer edge of the upper part of the flaps can then rest, in folded down position, on the base, while when the two parts are hinged to one another along a second said axis to bring them as close together as possible, the outer edge of the upper part of the flaps is in folded down position at the level of the upper surface of the free arm, the flaps then constituting a worktable and ramps facilitating the bringing up of parts to be sewn towards said upper surface.
Claim 4
Dependent Claim
45 words
A sewing machine according to claim 1, comprising a device mounted on the top edge of the lower parts of the flaps enabling the blocking of the hinging of the abutting two parts of each flap when they are arranged in extension of one another.
Claim 5
Dependent Claim
108 words
A sewing machine according to claim 1, wherein said second hinge means comprises a sliding mechanism capable of occupying at least three positions, a first said position with retracted slide in which the two parts of the flaps are abutting and the upper part is blocked with respect to the lower part against independent pivotal movement toward the frame, a second said position with slight extension of the slide corresponding to hinging in intermediate position of the two parts with respect to one another, and a third said position with maximum extension of said slide corresponding to hinging in the most extended position of the two said parts.
Claim 6
Dependent Claim
108 words
A sewing machine according to claim 2, wherein said second hinge means comprises a sliding mechaNism capable of occupying at least three positions, a first said position with retracted slide in which the two parts of the flaps are abutting and the upper part is blocked with respect to the lower part against independent pivotal movement toward the frame, a second said position with slight extension of the slide corresponding to hinging in intermediate position of the two parts with respect to one another, and a third said position with maximum extension of said slide corresponding to hinging in the most extended position of the two said parts.
Claim 7
Dependent Claim
108 words
A sewing machine according to claim 3, wherein said second hinge means comprises a sliding mechanism capable of occupying at least three positions, a first said position with retracted slide in which the two parts of the flaps are abutting and the upper part is blocked with respect to the lower part against independent pivotal movement toward the frame, a second said position with slight extension of the slide corresponding to hinging in intermediate position of the two parts with respect to one another, and a third said position with maximum extension of said slide corresponding to hinging in the most extended position of the two said parts.
Claim 8
Dependent Claim
93 words
A sewing machine according to claim 1, wherein the flap provided along the front side of said frame is a third flap hinged at the front edge of the base to form the lower part of the front wall of the case, the upper part of said wall having a flap hinged to the head of the sewing machine and capable of occupying two positions, a raised position in which it is applied against the head and a lowered position by which it closes the space between the head and the free arm.
Claim 9
Dependent Claim
93 words
A sewing machine according to claim 2, wherein the flap provided along the front side of said frame is a third flap hinged at the front edge of the base to form the lower part of the front wall of the case, the upper part of said wall having a flap hinged to the head of the sewing machine and capable of occupying two positions, a raised position in which it is applied against the head and a lowered position by which it closes the space between the head and the free arm.
Claim 10
Dependent Claim
27 words
A sewing machine according to claim 1, wherein the flaps hinged on the principal side surfaces of the machine extend over the whole length of the latter.
Claim 11
Dependent Claim
27 words
A sewing machine according to claim 8, wherein the flaps hinged on the principal side surfaces of the machine extend over the whole length of the latter.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |