EP0251796A3 - Improvements in or relating to punches and presses - Google Patents

Improvements in or relating to punches and presses Download PDF

Info

Publication number
EP0251796A3
EP0251796A3 EP87305861A EP87305861A EP0251796A3 EP 0251796 A3 EP0251796 A3 EP 0251796A3 EP 87305861 A EP87305861 A EP 87305861A EP 87305861 A EP87305861 A EP 87305861A EP 0251796 A3 EP0251796 A3 EP 0251796A3
Authority
EP
European Patent Office
Prior art keywords
punches
presses
relating
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.)
Granted
Application number
EP87305861A
Other versions
EP0251796A2 (en
EP0251796B1 (en
Inventor
Rodney Linval
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.)
LINVAL, RODNEY
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0251796A2 publication Critical patent/EP0251796A2/en
Publication of EP0251796A3 publication Critical patent/EP0251796A3/en
Application granted granted Critical
Publication of EP0251796B1 publication Critical patent/EP0251796B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/007—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen using a fluid connection between the drive means and the press ram
    • 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
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/32—Perforating, i.e. punching holes in other articles of special shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
EP19870305861 1986-06-27 1987-07-02 Improvements in or relating to punches and presses Expired EP0251796B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8615709 1986-06-27
GB868615709A GB8615709D0 (en) 1986-06-27 1986-06-27 Punches

Publications (3)

Publication Number Publication Date
EP0251796A2 EP0251796A2 (en) 1988-01-07
EP0251796A3 true EP0251796A3 (en) 1988-11-30
EP0251796B1 EP0251796B1 (en) 1992-04-29

Family

ID=10600189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870305861 Expired EP0251796B1 (en) 1986-06-27 1987-07-02 Improvements in or relating to punches and presses

Country Status (3)

Country Link
EP (1) EP0251796B1 (en)
DE (1) DE3778592D1 (en)
GB (1) GB8615709D0 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2654037B1 (en) * 1989-11-07 1994-08-05 Renault PRESS TOOLS WITH HYDRAULIC SLIDER CONTROL DEVICE.
EP0696960B1 (en) * 1993-04-26 1997-03-26 Danly Corporation Press-driven tool module, in particular press-driven cross-punching or bending unit
ES2167656T3 (en) * 1996-09-26 2002-05-16 Simone Bordignon HYDRAULIC PRESS WITH AUTOMATIC OIL COMPENSATION.
DE19830825B4 (en) * 1998-07-09 2006-10-12 Schnupp Gmbh & Co Hydraulik Kg forming tool
KR100391453B1 (en) * 2000-12-30 2003-07-12 현대자동차주식회사 Piercing device for press system
KR101072305B1 (en) 2005-07-15 2011-10-11 현대자동차주식회사 Piercing Press
GB2464756B (en) * 2008-10-28 2013-06-05 Linval Rodney Improvements in or relating to punches or presses
JP6197766B2 (en) * 2014-08-26 2017-09-20 Ｊｆｅスチール株式会社 Press mold equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2112153A (en) * 1936-05-25 1938-03-22 Midwest Production Engineering Hydraulic punch and die unit
DE1919095A1 (en) * 1969-04-15 1970-11-05 Gabriel Guenther Pressing and punching device
FR2348051A1 (en) * 1976-04-12 1977-11-10 Polymatic Sa Hydraulically operated sheet metal piercing tool - has intermediate chamber between pressure multiplier head and double acting piercing cylinder

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6040621A (en) * 1983-08-11 1985-03-04 Nissan Motor Co Ltd Press die

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2112153A (en) * 1936-05-25 1938-03-22 Midwest Production Engineering Hydraulic punch and die unit
DE1919095A1 (en) * 1969-04-15 1970-11-05 Gabriel Guenther Pressing and punching device
FR2348051A1 (en) * 1976-04-12 1977-11-10 Polymatic Sa Hydraulically operated sheet metal piercing tool - has intermediate chamber between pressure multiplier head and double acting piercing cylinder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 168 (M-396)[1891], 13th July 1985; & JP-A-60 40 621 (NISSAN JIDOSHA K.K.) 04-03-1985 *

Also Published As

Publication number Publication date
EP0251796A2 (en) 1988-01-07
DE3778592D1 (en) 1992-06-04
EP0251796B1 (en) 1992-04-29
GB8615709D0 (en) 1986-08-06

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