# US 4,392,401 A · Apparatus for staggered cutting of planar workpieces

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- Number: US 4,392,401 A
- Document ID: US4392401A
- Status: Granted
- Kind: A
- Application number: 06/265,368
- Filed: 1981-05-20
- Granted: 1983-07-12
- Earliest claimed: 1980-05-21
- Assignees: Schelling & Co.
- Inventors: Wilfried Ess
- Web page: https://patentgrep.com/patent/US4392401A

## CPC

- B27B 5/065: with feedable saw blades, e.g. arranged on a carriage
- B23D 47/025: {of tables}
- B23D 47/042: {for conveying work to, or discharging work from, the machine}
- Y10T 83/051: Relative to same tool
- Y10T 83/2187: Reciprocating product handler
- Y10T 83/4486: With variable direction of work-feed from cycle to cycle
- Y10T 83/462: Plurality of work feed means in separate paths
- Y10T 83/6542: Plural means to constrain plural work pieces
- Y10T 83/6571: With means to store work articles
- Y10T 83/6635: By feed roller
- B27B: SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR (saws specially adapted for pruning or debranching A01G3/08; sawing apparatus specially adapted for felling trees A01G23/091; features not restricted to a particular type of wood saw B23D, e.g. attaching saw blades B23D51/00; machine tool frames, beds, pillars or like members, in general B23Q1/01)
- B23D: PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR (making toothed gears or the like B23F; cutting metal by applying heat locally B23K; arrangements for copying or controlling B23Q)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Apparatus for cutting planar workpieces including a saw movable through a cutting stroke in a substantially horizontal direction with a first and a second table being provided on opposite sides of the saw. The planar workpieces are first fed from the first table onto the second table through a first cutting operation and the cut parts are rotated relative to the saw on the second table and then fed through a second cutting operation back onto the first table. A pusher device is provided on the second table for feeding the planar cut parts and a feeding device on the first table operates to selectively feed planar strips from the first table to the second table. The first table is provided with two sets of rollers capable of conveying planar parts in two transverse directions with the sets of rollers being vertically displaceable relative to each other.

## Claims

### Claim 1

Apparatus for cutting planar workpieces comprising: saw means movable through a cutting stroke in a substantially horizontal direction; first table means on one side of said saw means; second table means on the opposite side of said saw means; adjustable alignment means for aligning on said first table means planar workpieces to be cut by said saw means; first feeding means including a plurality of individual clamping devices which are selectively operable to selectively individually engage planar workpieces on said first table means to feed said workpieces through a cutting operation relative to said means, with cut parts of said planar workpieces being thereby deposited on said second table means; pivot means on said second table means for turning said cut parts of said planar workpieces relative to said saw means; second feeding means for feeding said cut parts of said planar workpieces through said saw means with parts thereof being deposited back on said first table means; and roller means on said first table means including first roller devices operable to allow planar workpieces deposited thereon to move in one direction and second roller devices operable to allow planar workpieces deposited thereon to move in another direction transverse to said first direction; said first and said second roller devices being vertically displaceable relative to each other.

### Claim 2 (depends on 1)

Apparatus according to claim 1 wherein said second feeding means of said second support table comprise a pushing device common to all workpieces.

### Claim 3 (depends on 1)

Apparatus according to claim 1 wherein said first roller devices comprise roller bodies rotatable about parallel axes extending in a first direction and wherein said second roller devices comprise roller bodies rotatable about parallel axes extending in a second direction, said first direction and said second direction being perpendicular to each other.

### Claim 4 (depends on 3)

Apparatus according to claim 3 wherein one of said first and said second directions extend parallel to the cutting plane of said saw means and wherein the other of said directions extends perpendicularly to said cutting plane.