US3723227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for assembly of veneer sheets in plywood fabrication
Assignee: Taihei Machinery Works Ltd
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Filing: 1971-02-23
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Granted: 1973-03-27
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Expires: 1991-02-23
Abstract
Abstract First and second pneumatic pickup means include a first and a second suction duct, respectively, thereby successively to pick up veneer sheets stacked up separately on first and second lifter means. First and second conveyor means extend in succession from the first pneumatic pickup means, whereas third conveyor means extend underneath the downwardly inclined second conveyor means from the second pneumatic pickup means to a point of termination of the second conveyor means, so that the veneer sheets picked up separately by the first and the second pneumatic pickup means are superposed one upon another as they reach fourth conveyor means, from which the veneer sheets are transferred onto a stand positioned on one side thereof. Veneer sheets to be glued are stacked up separately and are fed one by one into gluing means positioned on the other side of the fourth conveyor means and thence are carried over to the aforesaid stand by fifth conveyor means.
Inventors
- 👤 H Oono
- 👤 M Tamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
B; B27; B27D; B27D1/00; B27D1/04; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1746; Y10T156/1776; Y10T156/1778; Y10T156/1798
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
514 words
Apparatus for assembly of veneer sheets into a form ready to be pressed togehther into plywood, comprising in combination: first pneumatic pickup means including a first suction duct capable of picking up one-by-one veneer sheets stacked on a first lifter provided under said pick-up means by virtue of a partial vacuum created therein: first conveyor means comprising a number of rollers adapted for receiving and conveying the veneer sheet picked up by said first pneumatic pickup means, and first stop means provided at the end of said first conveyor means opposite to said first pneumatic pickup means and adapted for transferring the veneer sheet onto a following second conveyor means; second conveyor means positioned in succession to said first conveyor means and inclined downwardly along the length thereof, said second conveyor means comprising a number of rollers adapted for receiving and conveying the veneer sheet supplied from said first conveyor means via said first stop means, and second stop means provided at the end of said second conveyor means opposite to said first conveyor means and adapted for transferring the veneer sheet carried by said second conveyor means onto a following fourth conveyor means; second pneumatic pickup means positioned underneath said first conveyor means and including a second suction duct capable of picking up one-by-one veneer sheets stacked on a second lifter disposed under said second pickup means by virtue of a partial vacuum created therein; third conveyor means positioned below said second conveyor means and comprising a number of rollers adapted for receiving and conveying the veneer sheet picked up by said second pneumatic pickup means, said third conveyor means terminating at substantially the same point as said second conveyor means so that said second stop means of said second conveyor means is used also for transferring the veneer sheet carried by said third conveyor means on the following fourth conveyor means; fourth conveyor means positioned in succession to said second conveyor means and said third conveyor means and comprising a number of rollers adapted for receiving and conveying the veneer sheets supplied from said second conveyor means and said third conveyor means via said second stop means, and third stop means provided at the end of said fourth conveyor means opposite to said second and third conveyor means; transfer means adapted to transfer the veneer sheets from said fourth conveyor means onto a stand positioned on one side of said fourth conveyor means; a third lifter mounting thereon a stack of the veneer sheets and positioned on the other side of said fourth conveyor means; gluing means provided between said third lifter and said fourth conveyor means and including a pair of gluing rollers and pinch rollers adapted to transfer a veneer sheet supplied from said third lifter into said gluing rollers and; fifth conveyor means extending from said gluing means and comprising a number of rollers adapted to convey the glued veneer sheet led out from said gluing means onto said stand in such a relation that nonglued veneer sheets are superimposed on both glued surfaces of the glued veneer sheet.
Claim 2
Dependent Claim
514 words
Apparatus for assembly of veneer sheets into a form ready to be pressed togehther into plywood, comprising in combination: first pneumatic pickup means including a first suction duct capable of picking up one-by-one veneer sheets stacked on a first lifter provided under said pick-up means by virtue of a partial vacuum created therein: first conveyor means comprising a number of rollers adapted for receiving and conveying the veneer sheet picked up by said first pneumatic pickup means, and first stop means provided at the end of said first conveyor means opposite to said first pneumatic pickup means and adapted for transferring the veneer sheet onto a following second conveyor means; second conveyor means positioned in succession to said first conveyor means and inclined downwardly along the length thereof, said second conveyor means comprising a number of rollers adapted for receiving and conveying the veneer sheet supplied from said first conveyor means via said first stop means, and second stop means provided at the end of said second conveyor means opposite to said first conveyor means and adapted for transferring the veneer sheet carried by said second conveyor means onto a following fourth conveyor means; second pneumatic pickup means positioned underneath said first conveyor means and including a second suction duct capable of picking up one-by-one veneer sheets stacked on a second lifter disposed under said second pickup means by virtue of a partial vacuum created therein; third conveyor means positioned below said second conveyor means and comprising a number of rollers adapted for receiving and conveying the veneer sheet picked up by said second pneumatic pickup means, said third conveyor means terminating at substantially the same point as said second conveyor means so that said second stop means of said second conveyor means is used also for transferring the veneer sheet carried by said third conveyor means on the following fourth conveyor means; fourth conveyor means positioned in succession to said second conveyor means and said third conveyor means and comprising a number of rollers adapted for receiving and conveying the veneer sheets supplied from said second conveyor means and said third conveyor means via said second stop means, and third stop means provided at the end of said fourth conveyor means opposite to said second and third conveyor means; transfer means adapted to transfer the veneer sheets from said fourth conveyor means onto a stand positioned on one side of said fourth conveyor means; a third lifter mounting thereon a stack of the veneer sheets and positioned on the other side of said fourth conveyor means; gluing means provided between said third lifter and said fourth conveyor means and including a pair of gluing rollers and pinch rollers adapted to transfer a veneer sheet supplied from said third lifter into said gluing rollers and; fifth conveyor means extending from said gluing means and comprising a number of rollers adapted to convey the glued veneer sheet led out from said gluing means onto said stand in such a relation that nonglued veneer sheets are superimposed on both glued surfaces of the glued veneer sheet.
Claim 3
Dependent Claim
45 words
The apparatus as claimed in claim 1, in which said first pneumatic pickup means further comprises a hydraulic cylinder coupled to said first suction duct for moving the same, and a pair of belted rollers positioned at the open end of said first suction duct.
Claim 4
Dependent Claim
50 words
The apparatus as claimed in claim 2, additionally comprising a pair of pinch rollers interposed between said first suction duct and said first conveyor means, whereby the veneer sheet picked up by said first pneumatic pickup means is fed onto said first conveyor means via said pair of pinch rollers.
Claim 5
Dependent Claim
38 words
The apparatus as claimed in claim 1, in which said first stop means of said first conveyor means and said second stop means of said second and said third conveyor means are actuatable by means of hydraulic cylinders.
Claim 6
Dependent Claim
55 words
The apparatus as claimed in claim 1, in which said rollers of said second conveyor means are arranged out of the perpendicular to a guide extending lengthwise at one side of said second conveyor means whereby the veneer sheet being conveyed by the same in urged against said guide and hence is neatly readjusted thereon.
Claim 7
Dependent Claim
45 words
The apparatus as claimed in claim 1, in which said second pneumatic pickup means further comprises a hydraulic cylinder coupled to said second suction duct for moving the same, and a pair of belted rollers positioned at the open end of said second suction duct.
Claim 8
Dependent Claim
50 words
The apparatus as claimed in claim 6, additionally comprising a pair of pinch rollers interposed between said second suction duct and said third conveyor means, whereby the veneer sheet picked up by said second pneumatic pickup means is fed onto said third conveyor means via said pair of pinch rollers.
Claim 9
Dependent Claim
118 words
The apparatus as claimed in claim 1, in which said third conveyor means is provided with means for adjusting of the veneer sheet being conveyed thereby, said adjusting means comprising a plurality of large diameter pulleys fixedly mounted on a common shaft, a plurality of rods interconnected with the rollers of the third conveyor means, each of said rods being rockably coupled at one end thereof to said common shaft and provided at the other end with a small diameter pulley and belts respectively extending between said large and said small diameter pulleys, and adapted for urging the side edge of the veneer sheet on said third conveyor means against a guide extending lengthwise at one side thereof.
Claim 10
Dependent Claim
109 words
The apparatus as claimed in claim 1, in which said transfer means comprise a plurality of first pairs of wheels, a plurality of second pairs of wheels respectively corresponding to said first pairs of wheels and being driven thereby via chains extending therebetween, and forklift means coupled to said chains so as to be movable along with the run thereof, said forklift means including fork tines arranged substantially in an interdigitated manner with said rollers of said fourth conveyor means and upward projections formed near the roots of said fork tines thereby to press the veneer sheets onto said stand positioned on one side of the fourth conveyor means.
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |