US3766708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for fastening a superposed mass of sheet-like materials
Assignee: Toshiba Corp
•
Filing: 1971-11-09
•
Granted: 1973-10-23
•
Expires: 1991-11-09
Abstract
Abstract An apparatus for fastening a superposed mass of sheet-like materials wherein there is provided a device for clamping an incoming superposed mass of sheet-like materials from above and below; the clamping device is carried to a feeder of heat contactible tape while holding the superposed mass; the tape is drawn out by being initially pressed against the forward end face of the superposed mass to be wound about the forward end face, top and bottom surfaces of the clamped mass; when the tape is further drawn out, those portions of the tape which extend outward from the top and bottom surfaces of the mass at its rear end are welded together; at the same time that looped portion of the tape which is wound about the mass is cut off to be separated from the feeder with the other portion being drawn out therefrom left uncut; the superposed mass thus wound are conducted to a heating device in a clamped state for thermal contraction of the tape so as to be tightly fastened together; and finally the fastened mass is taken outside by a withdrawing device.
Inventors
- 👤 M Kubo
- 👤 S Nakajima
- 👤 S Horino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:57
CPC Classifications
B; B65; B65B; B65B27/00; B65B27/08; B65B13/00; B65B13/18; B65B13/20
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
242 words
An apparatus for fastening a superposed mass of sheet-like materials which comprises a transporting device for forwarding said superposed mass; a clamping device for holding both crosswise sides of the transported mass parallel with its travelling direction and moving it in a direction perpendicularly intersecting a line connecting said crosswise sides; a tape feeder for drawing out a heat contractible tape in the moving direction of the mass by initially pressing it against the forward end face defined between the clamped crosswise sides of the mass, thereby winding it about the end face, top and bottom surfaces of the mass in a manner to intersect the passage of the mass at right angles in a vertical plane; a welding device for welding together those portions of the tape which extend outward from the top and bottom surfaces of the mass at its rear end, thereby winding the tape about those portions of the peripheral surface of the mass which are defined between the clamped crosswise sides; a tape cutting device for cutting off said wound looped tape to separate it from the feeder with the portion of the tape being drawn out from the feeder left uncut; a heating device for heating the superposed mass still clamped and loosely wound with the tape so as to thermally contract the looped tape and tightly fasten said mass; and a withdrawing device for taking out the fastened mass which has left said heating device.
Claim 2
Independent Claim
242 words
An apparatus for fastening a superposed mass of sheet-like materials which comprises a transporting device for forwarding said superposed mass; a clamping device for holding both crosswise sides of the transported mass parallel with its travelling direction and moving it in a direction perpendicularly intersecting a line connecting said crosswise sides; a tape feeder for drawing out a heat contractible tape in the moving direction of the mass by initially pressing it against the forward end face defined between the clamped crosswise sides of the mass, thereby winding it about the end face, top and bottom surfaces of the mass in a manner to intersect the passage of the mass at right angles in a vertical plane; a welding device for welding together those portions of the tape which extend outward from the top and bottom surfaces of the mass at its rear end, thereby winding the tape about those portions of the peripheral surface of the mass which are defined between the clamped crosswise sides; a tape cutting device for cutting off said wound looped tape to separate it from the feeder with the portion of the tape being drawn out from the feeder left uncut; a heating device for heating the superposed mass still clamped and loosely wound with the tape so as to thermally contract the looped tape and tightly fasten said mass; and a withdrawing device for taking out the fastened mass which has left said heating device.
Claim 3
Dependent Claim
59 words
A fastening apparatus according to claim 1 wherein the clamping device includes clamping means for holding both crosswise sides of the superposed mass parallel with its travelling direction; a base for supporting said clamping means; and a guide member for guiding said clamping means along the tape feeder, welding device, cutting device and heating device by guiding said base.
Claim 4
Dependent Claim
47 words
A fastening apparatus according to claim 2 wherein the clamping device comprises mounting members for receiving on the surface both crosswise sides of the forwarded superposed mass; and movable compressing members located above said mounting members for depressing both crosswise sides of the superposed mass being clamped.
Claim 5
Dependent Claim
56 words
A fastening apparatus according to claim 3 wherein the mounting members have the central part raised upward parallel with its travelling direction; and the compressing members have a depressing surface formed substantially parallel with the mounting surface of said mounting members, thereby causing the superposed mass to present a bent cross section along its moving direction.
Claim 6
Dependent Claim
49 words
A fastening apparatus according to claim 3 wherein the compressing members include elastic members fixed to the depressing surface, said elastic members being designed to depress both crosswise sides of the superposed mass so as to cause the mass as a whole to be stretched toward said crosswise sides.
Claim 7
Dependent Claim
42 words
A fastening device according to claim 5 wherein each elastic member has a base end fixed to the depressing surface of the compressing member and a free end directed slantwise downward toward one of crosswise sides of the superposed mass being clamped.
Claim 8
Dependent Claim
67 words
A fastening apparatus according to claim 1 wherein the transporting device includes a belt conveyor comprising rollers and belts stretched over said rollers with one end disposed near the clamping device; and means for pushing the rear end of the superposed mass already transported by the belt conveyor further in its travelling direction so as to place said mass on the mounting members of the clamping device.
Claim 9
Dependent Claim
82 words
A fastening apparatus according to claim 7 wherein the belt conveyor includes a plurality of spaced rollers provided with a belt groove and a plurality of parallel belts stretched over said rollers; and the superposed mass pushing means comprises a pressing member provided with comb-like teeth selectively inserted, between said plural parallel belts and drive means for urging said pressing member in the travelling direction of the superposed mass As well as in a direction at right angles to said travelling direction.
Claim 10
Dependent Claim
83 words
A fastening apparatus according to claim 1 wherein the clamping device comprises a first pair of parallel belts for receiving on their surface those crosswise sides of the superposed mass already brought by the transporting device which are to be clamped; and a second pair of parallel belts disposed above said first paired belts with the distance therebetween progressively reduced so as to clamp the crosswise sides of the superposed mass in co-operation with said first belts for further movement of the mass.
Claim 11
Dependent Claim
38 words
A fastening apparatus according to claim 9 wherein the tape feeder draws out a heat contractible tape so as to cause it to travel continuously between the first paired belts as well as between the second paired belts.
Claim 12
Dependent Claim
53 words
A fastening apparatus according to claim 1 wherein the tape feeder is provided with tape guide rollers disposed on that side of said feeder from which the tape is drawn out in the moving direction of the superposed mass with a slightly larger space than the thickness of said superposed mass allowed therebetween.
Claim 13
Dependent Claim
90 words
A fastening apparatus according to claim 1 wherein the take feeder includes a feed roller and a tape up roller which make a free rotation when the tape is drawn out according to the movement of the superposed mass; and at least one of said rollers is so operated as to prevent the welded joint of the portion of a tape previously conducted by both rollers from appearing on a looped tape being wound about the succeding superposed mass brought after the preceding portion of the tape is cut off.
Claim 14
Dependent Claim
46 words
A fastening apparatus according to claim 1 wherein the heating device has a tunnel-shaped heating chamber through which the superposed mass clamped on both crosswise sides is carried along and a device for providing air curtains at both the inlet and outlet of said heating chamber.
Claim 15
Dependent Claim
86 words
A fastening apparatus according to claim 1 wherein the tape welding device includes a first welding blade for welding those portions of the tape which extend outward from the top and bottom surfaces of the superposed mass along a first line of welding and a second welding blade for welding said tape along an adjacent second line of welding; and the cutting device has a cutting blade disposed between said first and second welding blades, said welding and cutting devices further including a common blade cradle.
Claim 16
Dependent Claim
25 words
A fastening apparatus according to claim 14 wherein the welding blades and cutting blade are fixed to a plunger reciprocating relative to the blade cradle.
Claim 17
Dependent Claim
39 words
A fastening apparatus according to claim 1 wherein the superposed mass withdrawing device includes a pushing member for urging the fastened mass placed on the mounting members of the clamping device; and drive means for actuating said pushing member.
Claim 18
Dependent Claim
86 words
A fastening apparatus according to claim 16 wherein the pushing member comprises a plate member coupled to said drive means so as to be limited in rotation under an urging force acting opposite to the direction in which said fastened mass is driven, but to freely rotate under an opposite urging force; said plate, when urged in the latter direction, sliding over the top surface of the superposed mass and, when further rotated, being pressed against the rear end of said mass for its further movement.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |