ATE54585T1 - ONE-HAND HYDRAULICALLY POWERED BENDER. - Google Patents

ONE-HAND HYDRAULICALLY POWERED BENDER.

Info

Publication number
ATE54585T1
ATE54585T1 AT86114499T AT86114499T ATE54585T1 AT E54585 T1 ATE54585 T1 AT E54585T1 AT 86114499 T AT86114499 T AT 86114499T AT 86114499 T AT86114499 T AT 86114499T AT E54585 T1 ATE54585 T1 AT E54585T1
Authority
AT
Austria
Prior art keywords
reservoir
matrix
fluid
pump
die holding
Prior art date
Application number
AT86114499T
Other languages
German (de)
Inventor
Giorgio Vezzani
Original Assignee
Cbc Spa
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 Cbc Spa filed Critical Cbc Spa
Application granted granted Critical
Publication of ATE54585T1 publication Critical patent/ATE54585T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/12—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
    • B25B7/126—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears with fluid drive
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
    • B21D7/063—Pliers with forming dies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Tubes (AREA)

Abstract

Hand operable hydraulic transmission tube bending device whose matrix-die holding bar (1) is moved by a fluid (oil) through a hydraulic pump. The reservoir (11) of the fluid is formed directly in the arm (14), on which the support (15) of counterdies (16) is installed, one of the walls of said reservoir being sealingly deformable. The pump, the conduits, the reservoir and the chamber in which the matrix-die holding bar slides form a closed circuit, the fluid arriving from the pump to the head (3) of the matrix-die holding bar through a conduit that is formed in the fixed part of the handle and which builds up the outer part of the handle (7) and is concentric with the cylinder (5) in which said bar slides.
AT86114499T 1985-10-31 1986-10-20 ONE-HAND HYDRAULICALLY POWERED BENDER. ATE54585T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8534927U IT207711Z2 (en) 1985-10-31 1985-10-31 HYDRAULIC TRANSMISSION PIPE BENDING UNIT OPERATED WITH ONE HAND
EP86114499A EP0220639B1 (en) 1985-10-31 1986-10-20 Hydraulic transmission tube bending device that can be operated with a single hand

Publications (1)

Publication Number Publication Date
ATE54585T1 true ATE54585T1 (en) 1990-08-15

Family

ID=11240966

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86114499T ATE54585T1 (en) 1985-10-31 1986-10-20 ONE-HAND HYDRAULICALLY POWERED BENDER.

Country Status (5)

Country Link
EP (1) EP0220639B1 (en)
AT (1) ATE54585T1 (en)
DE (1) DE3672747D1 (en)
ES (1) ES2016792B3 (en)
IT (1) IT207711Z2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT230365Y1 (en) * 1993-07-16 1999-06-02 Imb Srl TOOL FOR PUNCHING
IT237303Y1 (en) * 1995-11-23 2000-09-05 Cbc Spa HYDRAULIC TRANSMISSION PIPE BENDING MACHINE

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1164123A (en) * 1957-01-11 1958-10-06 Hydraulic hand gripper
GB882614A (en) * 1959-02-25 1961-11-15 Mekler Dan Improvements in or relating to hydraulic tools, adapted to be held and operated with one hand
FR2100998B1 (en) * 1970-08-04 1973-04-27 Breton Leslie Le TUBE BENDING TOOL
CH610232A5 (en) * 1975-01-27 1979-04-12 Erich K Schmitter
CH597985A5 (en) * 1975-03-06 1978-04-28 Willy Fluckiger Pneumatic pincers for crimping eyelet onto cable
US4149381A (en) * 1977-07-13 1979-04-17 Dan Mekler Single hand operated tool
IT1156153B (en) * 1978-04-06 1987-01-28 Liri Costruzioni Mecc IMPROVEMENT IN A PORTABLE HYDRAULIC HAND BENDER WITH MANUAL CONTROL EQUIPPED WITH REVOLVING HEAD AND REVERSIBLE BENDING ELEMENTS TO REVERSE THE DIRECTION OF THE TUBE BEND
FR2466115A1 (en) * 1979-09-24 1981-03-27 Sicame Sa Electrical connector hand-held crimping device - has lever action to pump jaws together under hydraulic fluid action and vent valve coupling hydraulic jack and reservoir
JPS585156B2 (en) * 1980-03-24 1983-01-29 株式会社 大洋発條製作所 Hydraulic pliers for snap springs

Also Published As

Publication number Publication date
EP0220639A2 (en) 1987-05-06
IT8534927V0 (en) 1985-10-31
EP0220639B1 (en) 1990-07-18
ES2016792B3 (en) 1990-12-01
DE3672747D1 (en) 1990-08-23
EP0220639A3 (en) 1988-09-07
IT207711Z2 (en) 1988-02-08

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties