GB832026A - Arrangement in or relating to punches or the like machines - Google Patents

Arrangement in or relating to punches or the like machines

Info

Publication number
GB832026A
GB832026A GB37261/57A GB3726157A GB832026A GB 832026 A GB832026 A GB 832026A GB 37261/57 A GB37261/57 A GB 37261/57A GB 3726157 A GB3726157 A GB 3726157A GB 832026 A GB832026 A GB 832026A
Authority
GB
United Kingdom
Prior art keywords
piston
air
nov
finger
stroke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB37261/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HELLY J HANSEN AS
Original Assignee
HELLY J HANSEN AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HELLY J HANSEN AS filed Critical HELLY J HANSEN AS
Publication of GB832026A publication Critical patent/GB832026A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/002—Drive of the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

832,026. Machinery safety devices. HANSEN A.S., H. J. Nov. 29, 1957 [Nov. 29, 1956], No. 37261/57. Class 80 (4). A safety device for a compressed-air-operated punch or press comprises an auxiliary piston 1 connected to the main ram or piston 5 to which air is supplied to operate the ram or punch at a reduced power for the greater part of the stroke which is not sufficient to damage an operator's finger if left in the way. For the final part of the stroke when there is not sufficient room for an operator's finger the piston 5 passes beyond its cylinder 6 to open the main cylinder 2 to the compressed air to operate the main ram or piston 5 at full power. A vacuum relief valve 4 is provided for the space above the piston 5.
GB37261/57A 1956-11-29 1957-11-29 Arrangement in or relating to punches or the like machines Expired GB832026A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO832026X 1956-11-29

Publications (1)

Publication Number Publication Date
GB832026A true GB832026A (en) 1960-04-06

Family

ID=19907270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37261/57A Expired GB832026A (en) 1956-11-29 1957-11-29 Arrangement in or relating to punches or the like machines

Country Status (1)

Country Link
GB (1) GB832026A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2556516A1 (en) * 1975-12-16 1977-06-30 Prym Werke William Machine tool finger protection device - has articulated lever connected to main drive shaft control cam through switch controller
US4534250A (en) * 1981-04-02 1985-08-13 Garrocho Jose M Miniature pneumatic punch
GB2158175A (en) * 1984-05-03 1985-11-06 Hartridge Ltd Leslie A press
DE3442507C1 (en) * 1984-11-22 1986-04-17 Stocko Metallwarenfabriken Henkels Und Sohn Gmbh & Co, 5600 Wuppertal Fitting device for rivets and the like
DE3505463A1 (en) * 1985-02-16 1986-08-21 Lothar Kopp GmbH, 7024 Filderstadt Apparatus for the plastic deformation of a component

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2556516A1 (en) * 1975-12-16 1977-06-30 Prym Werke William Machine tool finger protection device - has articulated lever connected to main drive shaft control cam through switch controller
US4534250A (en) * 1981-04-02 1985-08-13 Garrocho Jose M Miniature pneumatic punch
GB2158175A (en) * 1984-05-03 1985-11-06 Hartridge Ltd Leslie A press
DE3442507C1 (en) * 1984-11-22 1986-04-17 Stocko Metallwarenfabriken Henkels Und Sohn Gmbh & Co, 5600 Wuppertal Fitting device for rivets and the like
DE3505463A1 (en) * 1985-02-16 1986-08-21 Lothar Kopp GmbH, 7024 Filderstadt Apparatus for the plastic deformation of a component

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