Patent US3890185A successfully refreshed from Google Patents.
US3890185A
Expired / Lapsed
US
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Method and apparatus for manufacture of decorative sheets
Assignee: Individual
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Filing: 1974-01-10
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Granted: 1975-06-17
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Expires: 1994-01-10
Abstract
Abstract A method and apparatus for fabricating a decorative sheet or panel by bonding a plurality of veneer sheets to one face of a rigid backing sheet over an intervening layer of an adhesive coating the latter. Stacks of veneers to be adhered to successive backing sheets are held in side-by-side relationship on the movable bottoms of their respective repositories defined by parallel partitions within a rectangular frame. This frame as well as the movable bottoms of the repositories are mounted on a platform which also is moved up and down by first lift means provided therebelow. In operation, the frame is elevated by the first lift means into contact with each backing sheet supported horizontally by an overhead conveyor. Second lift means mounted on the platform is then set in motion to move the stacks of veneers upwardly relative to the frame until the uppermost veneers of the respective stacks are stuck to the lower face of the backing sheet over the layer of adhesive previously coated thereon. Thereafter the remaining stacks of veneers and the frame are successively lowered by the second and the first lift means, respectively. This cycle of operation can be repeated continuously.
Inventors
- 👤 Kousuke Umazume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:20
CPC Classifications
B; B27; B27D; B27D1/00; B27D1/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1751; Y10T156/1754; Y10T156/1759; Y10T156/1763; Y10T156/1766
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
A method of manufacturing decorative sheets each comprising a relatively rigid backing sheet and a plurality of veneers bonded to one face of the backing sheets, said method comprising consecutively repeated operational cycles each comprising the steps of: supporting the backing sheet horizontally at a predetermined height above the floor level, said backing sheet being coated with a layer of adhesive on its lower face; elevating a frame from below said backing sheet into contact therewith, the interior of said frame being partitioned into a plurality of repositories adapted to accommodate stacks of the veneers respectively; elevating said stacks of veneers relative to said frame until the uppermost veneers of the respective stacks contact the lower face of said backing sheet over the layer of adhesive coating thereon; lowering the remaining stacks of veneers relative to said frame away from said backing sheet having said uppermost veneers adhering to its lower face; and lowering said frame away from said backing sheet together with said remaining stacks of veneers accommodated in said repositories thereof.
Claim 2
Independent Claim
173 words
A method of manufacturing decorative sheets each comprising a relatively rigid backing sheet and a plurality of veneers bonded to one face of the backing sheets, said method comprising consecutively repeated operational cycles each comprising the steps of: supporting the backing sheet horizontally at a predetermined height above the floor level, said backing sheet being coated with a layer of adhesive on its lower face; elevating a frame from below said backing sheet into contact therewith, the interior of said frame being partitioned into a plurality of repositories adapted to accommodate stacks of the veneers respectively; elevating said stacks of veneers relative to said frame until the uppermost veneers of the respective stacks contact the lower face of said backing sheet over the layer of adhesive coating thereon; lowering the remaining stacks of veneers relative to said frame away from said backing sheet having said uppermost veneers adhering to its lower face; and lowering said frame away from said backing sheet together with said remaining stacks of veneers accommodated in said repositories thereof.
Claim 3
Independent Claim
204 words
An apparatus for manufacturing decorative sheets each comprising a relatively rigid backing sheet and a plurality of veneers bonded to one face of the backing sheet, said apparatus comprising: a base structure; a platform disposed above said base structure; first lift means adapted to impart up-and-down motion to said platform relative to said base structure; a rectangular frame resiliently supported on said platform and having a plurality of partitions dividing the internal space of said frame into a plurality of open-top repositories adapted to accommodate stacks of veneers respectively, said repositories having vertically movable bottoms on which said stacks of veneers are deposited; second lift means adapted to impart up-and-down motion to said movable bottoms of said repositories relative to said frame; and conveyor means for carrying each backing sheet coated with an adhesive on its lower surface to and away from a predetermined position above said frame, said first lift means lifting said frame to each backing sheet placed in said predetermined position; said second lift means thereupon lifting all stacks thereby to press the uppermost veneers of all stacks simultaneously against the adhesive coated lower surface of the backing sheet and thereby causing said veneers to adhere to said uppermost lower surface.
Claim 4
Independent Claim
204 words
An apparatus for manufacturing decorative sheets each comprising a relatively rigid backing sheet and a plurality of veneers bonded to one face of the backing sheet, said apparatus comprising: a base structure; a platform disposed above said base structure; first lift means adapted to impart up-and-down motion to said platform relative to said base structure; a rectangular frame resiliently supported on said platform and having a plurality of partitions dividing the internal space of said frame into a plurality of open-top repositories adapted to accommodate stacks of veneers respectively, said repositories having vertically movable bottoms on which said stacks of veneers are deposited; second lift means adapted to impart up-and-down motion to said movable bottoms of said repositories relative to said frame; and conveyor means for carrying each backing sheet coated with an adhesive on its lower surface to and away from a predetermined position above said frame, said first lift means lifting said frame to each backing sheet placed in said predetermined position; said second lift means thereupon lifting all stacks thereby to press the uppermost veneers of all stacks simultaneously against the adhesive coated lower surface of the backing sheet and thereby causing said veneers to adhere to said uppermost lower surface.
Claim 5
Dependent Claim
216 words
The apparatus as defined in claim 2, wherein said second lift means comprises: at least a pair of spaced-apart screw rods rotatably extending vertically through a support structure mounted on said platform below each of said movable bottoms of said repositories, the upper ends of said pair of screw rods being secured to the corresponding one of said movable bottoms; an externally toothed ring gear screw-threadedly mounted on one of said pair of screw rods, said ring gear being supported by said support structure so as to be rotatable relative to the same but incapable of displacement in the axial direction of said one screw rod; a first sprocket wheel rotatably mounted on said one screw rod an coupled to said ring gear for simultaneous rotation therewith; a second sprocket wheel screw-threadedly mounted on the other of said pair of screw rods, said second sprocket wheel being supported by said support structure so as to be rotatable relative to the same but fixed in displacement in the axial direction of said other screw rod; an endless chain interconnecting said first and second sprocket wheels; and drive means adapted to impart rotation to said ring gear relative to said support structure whereby said pair of screw rods move synchronously up and down relative to said support structure.
Claim 6
Dependent Claim
60 words
The apparAtus as defined in claim 3, further including adjustment means provided between said movable bottoms of said repositories and said support structures respectively, said adjustment means being adapted to adjust the height of each of said movable bottoms of said repositories so that the tops of said stacks of veneers are all settable on one and the same level.
Claim 7
Dependent Claim
35 words
The apparatus as defined in claim 2, further including stop means formed on one edge of said frame to stop each backing sheet carried by said conveyor means at said predetermined position above said frame.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |