Patent US3911773A successfully refreshed from Google Patents.
US3911773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cutting material at fixed length
Assignee: Eisai Co Ltd
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Filing: 1974-03-11
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Granted: 1975-10-14
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Expires: 1994-03-11
Abstract
Abstract An apparatus for cutting a moving object to a fixed length and provided with a lateral movement mechanism adapted to effect lateral reciprocating movement of upper and lower cutters along a stroke having a predetermined travelling distance, and a vertical movement mechanism adapted to effect vertical reciprocating movement of the upper cutter in synchronization with the lateral reciprocating movement of its own, wherein there exists a constant ratio between the velocity of the lateral reciprocating movement of both cutters and the velocity of the moving workpiece, and the workpiece under conveyance is cut by means of both the upper and the lower cutters in the closing phase of the forward stroke of the lateral reciprocating movement thereof.
Inventors
- 👤 Ikuji Inowaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:12
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/56; B26D1/60; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4749; Y10T83/4751; Y10T83/4754; Y10T83/4757; Y10T83/4763; Y10T83/4766; Y10T83/4775; Y10T83/4783; Y10T83/4786
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
314 words
An apparatus for cutting a moving object to a predetermined length, comprising: a frame; a lower cutter base means movably supported on said frame for reciprocating movement in a substantially horizontal direction, said lower cutter base means having a transferring path on the upper surface thereof and substantially parallel to said horizontal direction for permitting conveyance of the object to be cut; an upper cutter base means spaced above said lower cutter base means and supported for movement upwardly and downwardly relative to said lower cutter base means, and means coacting between said upper and lower cutter base means for causing synchronous reciprocating lateral movement thereof; upper and lower cutters mounted on the respective upper and lower base means and disposed opposite one another for cutting an object; a first movement mechanism for causing reciprocating movement of said upper and lower cutting base means in said horizontal direction to effect, at least during a portion of the forward stroke of said base means, a velocity of said base means corresponding to the velocity of the moving object; said first movement mechanism including rotatable drive shaft means supported on said frame, a first cylindrical cam nonrotatably mounted on said drive shaft means, and a positive drive linkage connected between said first cylindrical cam and one of said base means for causing a positively driven forward and backward reciprocating movement of said upper and lower cutter base means; and a second movement mechanism for causing reciprocating vertical movement of said upper base means to effect cutting of said object during the forward stroke of said base means, said second movement mechanism including a second cylindrical cam nonrotatably mounted on said drive shaft means and link means connected between said second cam and said upper cutter base means for causing vertical reciprocating movement of said upper cutter base means in response to rotation of said second cam.
Claim 2
Independent Claim
314 words
An apparatus for cutting a moving object to a predetermined length, comprising: a frame; a lower cutter base means movably supported on said frame for reciprocating movement in a substantially horizontal direction, said lower cutter base means having a transferring path on the upper surface thereof and substantially parallel to said horizontal direction for permitting conveyance of the object to be cut; an upper cutter base means spaced above said lower cutter base means and supported for movement upwardly and downwardly relative to said lower cutter base means, and means coacting between said upper and lower cutter base means for causing synchronous reciprocating lateral movement thereof; upper and lower cutters mounted on the respective upper and lower base means and disposed opposite one another for cutting an object; a first movement mechanism for causing reciprocating movement of said upper and lower cutting base means in said horizontal direction to effect, at least during a portion of the forward stroke of said base means, a velocity of said base means corresponding to the velocity of the moving object; said first movement mechanism including rotatable drive shaft means supported on said frame, a first cylindrical cam nonrotatably mounted on said drive shaft means, and a positive drive linkage connected between said first cylindrical cam and one of said base means for causing a positively driven forward and backward reciprocating movement of said upper and lower cutter base means; and a second movement mechanism for causing reciprocating vertical movement of said upper base means to effect cutting of said object during the forward stroke of said base means, said second movement mechanism including a second cylindrical cam nonrotatably mounted on said drive shaft means and link means connected between said second cam and said upper cutter base means for causing vertical reciprocating movement of said upper cutter base means in response to rotation of said second cam.
Claim 3
Dependent Claim
41 words
An apparatus as defined in claim 1, which is adapted to cut to a fixed length a moving band like object consisting of a plate-like support paper and a corrugated paper bonded onto the surface of said support paper by adhesive.
Claim 4
Dependent Claim
82 words
An apparatus according to claim 1, wherein said positive drive linkage as connected between said first cam and said one base means includes a first gear rack supported for reciprocating horizontal movement in a direction substantially parallel to said horizontal direction, said first gear rack being drivingly interconnected to and reciprocated by said first cam upon rotaTion thereof, a second gear rack attached to said lower cutter base means, and intermediate gear pinion means drivingly engaged with said first and second racks.
Claim 5
Dependent Claim
119 words
An apparatus according to claim 3, wherein said first rack includes first and second gear rack portions of different heights disposed adjacent one another, and said gear pinion means including first and second coaxial gear pinions respectively disposed in meshing engagement with said first and second rack portions, said first and second gear pinions being of different diameters, and said gear pinion means including a third gear pinion coaxial with said first and second gear pinions and disposed in meshing engagement with said second rack, and clutch means for selectively clutchably engaging one of said first and second gear pinions to said third gear pinion to permit the horizontal stroke of said lower cutter base means to be varied.
Claim 6
Dependent Claim
113 words
An apparatus according to claim 1, wherein said first cylindrical cam has cam profile means for causing a gradually accelerated movement of the upper and lower cutter base means during the initial phase of the forward stroke, for causing a gradual decelerated movement of the upper and lower cutter base means during the closing phase of the forward stroke, and for causing a quick returning movement of both cutter base means during the backward stroke, and wherein the second cylindrical cam has profile means for causing the downward stroke of the upper cutter base means to be terminated and reversed prior to the termination of the forward stroke of the cutter base means.
Claim 7
Dependent Claim
53 words
An apparatus according to claim 5, wherein said first and second cylindrical cams are each of a barrel-like shape and are fixed to a common drive shaft in coaxial relationship with one another, each of said cams having an annular cam groove surrounding the respective cam and extending in an axial direction thereof.
Claim 8
Dependent Claim
25 words
An apparatus according to claim 1, wherein said link means includes lever means coacting between said second cylindrical cam and said upper cutter base means.
Claim 9
Dependent Claim
81 words
An apparatus according to claim 1, wherein said lower base means is constrained solely for movement relative to said frame in said horizontal direction, and wherein said upper base means is vertically slidably supported on said lower cutter base means so that said upper cutter base means can be vertically reciprocated relative to said lower cutter base means and relative to said frame, and said upper cutter base means being constrained for horizontal reciprocating movement with said lower cutter base means.
Claim 10
Dependent Claim
149 words
An apparatus according to claim 1, wherein said drive shaft means includes a driving shaft rotatably supported on said frame and disposed with the rotational axis thereof extending substantially parallel to said horizontal direction, and said first and second cylindrical cams each comprising a barrel-shaped cam nonrotatably secured to said driving shaft, each of said cams having an annular cam groove disposed so as to surround same and extending axially thereof, said positive drive linkage including a first cam follower disposed in engagement with the groove formed in said first cam and constrained for reciprocating movement in a direction which is substantially parallel to the axis of said driving shaft, and said link means including a second cam follower disposed in engagement with the groove formed in said second cam and constrained for movement in a direction which is substantially parallel to the rotational axis of said driving shaft.
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) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |