# US 5,341,558 A · Method of assembling a movable upper tool for separating blanks

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- Number: US 5,341,558 A
- Document ID: US5341558A
- Status: Granted
- Kind: A
- Application number: 07/953,938
- Filed: 1992-09-30
- Granted: 1994-08-30
- Earliest claimed: 1991-04-10
- Assignees: Bobst SA
- Inventors: Charly Varidel; Marcel Yerly
- Web page: https://patentgrep.com/patent/US5341558A

## CPC

- B26D 7/1818: {by pushing out}
- B26D 2007/189: {Mounting blanking, stripping and break-out tools}
- Y10S 52/13: Hook and loop type fastener
- Y10T 29/4987: Elastic joining of parts
- Y10T 29/49904: Assembling a subassembly, then assembling with a second subassembly
- Y10T 83/9452: With tool contour adjusting means
- Y10T 225/329: Plural breakers
- B26D: CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING (for growing crops or plants A01D, A01G; for fodder or straw A01F; for bulk butter A01J; for dough A21C; slaughtering A22B; for tobacco, cigars or cigarettes A24; marking-out, perforating or making buttonholes A41H25/00; manufacturing footwear A43D; brushmaking A46D; surgery A61B; disintegrating, mincing or shredding in general B02C; cutting wire, making pins or nails B21F, B21G; of the kind used formetal B23; cutting by abrasive fluid jets B24C5/02; hand-held cutting tools B26B; perforating, cutting-out, stamping-out or punching, or severing by means other than cutting B26F; for wood B27; for stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; article or web delivery apparatus incorporating cutting or line-perforating devices B65H35/00; for leather or upholstery B68, C14B; for glass C03B; making matches C06F; for peat C10F; for sugar C13B45/00; for textile materials D06H; civil engineering, building, mining, see Section E; for light guides G02B6/25; cutting processed photographic material G03D15/04)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A method of assembling a movable upper tool utilizing hook and loop fastening system. The tool used for an upper tool blank separating station has a plate provided with numerous apertures and a lower surface provided with one of a two-layer system of fastening with a first of the two layers having a plurality of loops and a second of the two layers having a plurality of catches or hooks for engaging the loops, and an upper surface of each block at least partially covered with the other of the two layers so that when the block is pressed against the lower surface of the plate, it is mounted thereon.

## Claims

### Claim 1

A process for preparing a movable upper tool, having a plate with a plurality of position-adjustable blocks thereon, in a selected configuration for separating blanks connected by a perforated line, comprising the steps of:
providing a plate and covering a surface of said plate completely with a first layer of a two-layer hook-and-loop fastening system;
providing a plurality of blocks and partially covering one surface of each of said blocks with a second layer of said two-layer hook-and-loop fastening system;
robotically placing said blocks at respective locations on said plate, with said first and second layers abutting, in a pattern for causing said blanks to separate at said perforation line;
pressing said blocks at said locations against said plate to temporarily fix said blocks at said locations by said hook-and-loop fastening system to produce a completed upper tool; and
separating said blanks by applying said completed upper tool to said blanks.