FR2234962A1 - Pneumatically assisted pincer type clamp - twin levers on common fulcrum have jack cell between lever ends - Google Patents

Pneumatically assisted pincer type clamp - twin levers on common fulcrum have jack cell between lever ends

Info

Publication number
FR2234962A1
FR2234962A1 FR7323562A FR7323562A FR2234962A1 FR 2234962 A1 FR2234962 A1 FR 2234962A1 FR 7323562 A FR7323562 A FR 7323562A FR 7323562 A FR7323562 A FR 7323562A FR 2234962 A1 FR2234962 A1 FR 2234962A1
Authority
FR
France
Prior art keywords
jack
arms
lever
common fulcrum
lever ends
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
FR7323562A
Other languages
French (fr)
Other versions
FR2234962B3 (en
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.)
ABDELLATIF ALA EL DINE FR
Original Assignee
ABDELLATIF ALA EL DINE FR
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 ABDELLATIF ALA EL DINE FR filed Critical ABDELLATIF ALA EL DINE FR
Priority to FR7323562A priority Critical patent/FR2234962A1/en
Publication of FR2234962A1 publication Critical patent/FR2234962A1/en
Application granted granted Critical
Publication of FR2234962B3 publication Critical patent/FR2234962B3/fr
Granted legal-status Critical Current

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
    • B25B7/22—Pliers provided with auxiliary tool elements, e.g. cutting edges, nail extractors
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The pincers esp. for closing scaffolding tube screw clamps, comprises usual pincer arrangement with twin arms each consisting of jaw heads i integral with elongated lever arms on a common fulcrum located behind the jaws, and embodies a pneumatic jack cell located between the free lever ends whereby leverage effort is augmented. The jack is pref. controlled by a three way valve (13) on the compressed gas feed alternating between feeding the jack and venting the gas to the atmosphere, or by a hammer actuated cartridge gas generator in conjunction with pressure release valves etc. The three way valve is actuated by a lever (26) on one of the arms.
FR7323562A 1973-06-27 1973-06-27 Pneumatically assisted pincer type clamp - twin levers on common fulcrum have jack cell between lever ends Granted FR2234962A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7323562A FR2234962A1 (en) 1973-06-27 1973-06-27 Pneumatically assisted pincer type clamp - twin levers on common fulcrum have jack cell between lever ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7323562A FR2234962A1 (en) 1973-06-27 1973-06-27 Pneumatically assisted pincer type clamp - twin levers on common fulcrum have jack cell between lever ends

Publications (2)

Publication Number Publication Date
FR2234962A1 true FR2234962A1 (en) 1975-01-24
FR2234962B3 FR2234962B3 (en) 1976-06-18

Family

ID=9121674

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7323562A Granted FR2234962A1 (en) 1973-06-27 1973-06-27 Pneumatically assisted pincer type clamp - twin levers on common fulcrum have jack cell between lever ends

Country Status (1)

Country Link
FR (1) FR2234962A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2851308A1 (en) * 1978-11-27 1980-05-29 Ver Flugtechnische Werke DEVICE FOR MILLING BEARING BUSHES
DE2929994A1 (en) * 1979-07-24 1981-02-05 Ronald E Keigley Hydraulic emergency hand tools

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2851308A1 (en) * 1978-11-27 1980-05-29 Ver Flugtechnische Werke DEVICE FOR MILLING BEARING BUSHES
DE2929994A1 (en) * 1979-07-24 1981-02-05 Ronald E Keigley Hydraulic emergency hand tools

Also Published As

Publication number Publication date
FR2234962B3 (en) 1976-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse