FR2300039A1 - Diamond frame screw jack with horizontal screw - has each screw trunnion made in two pieces inserted from opposite sides - Google Patents

Diamond frame screw jack with horizontal screw - has each screw trunnion made in two pieces inserted from opposite sides

Info

Publication number
FR2300039A1
FR2300039A1 FR7503700A FR7503700A FR2300039A1 FR 2300039 A1 FR2300039 A1 FR 2300039A1 FR 7503700 A FR7503700 A FR 7503700A FR 7503700 A FR7503700 A FR 7503700A FR 2300039 A1 FR2300039 A1 FR 2300039A1
Authority
FR
France
Prior art keywords
screw
opposite sides
jack
horizontal
diamond frame
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
FR7503700A
Other languages
French (fr)
Other versions
FR2300039B1 (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.)
Individual
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
Priority to FR7503700A priority Critical patent/FR2300039A1/en
Priority to JP1089576A priority patent/JPS51102860A/en
Publication of FR2300039A1 publication Critical patent/FR2300039A1/en
Application granted granted Critical
Publication of FR2300039B1 publication Critical patent/FR2300039B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/12—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated comprising toggle levers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

A screw jack has a diamond shaped frame with pairs of upper and lower arms interconnected by trunnions, with the horizontal screw passing through the two trunnions. Each of these two trunnions consists of two inter- fitting pieces, with a hole through the middle for the screw, passing through clearance holes in the ends of the arms. Each piece consists of a piece of rod with a flat across it, and a head one end. Thus two pieces forming a single trunnion are inserted through opposite sides of the two arms to be connected, so that their flats abut, and the screw passing through them holds them in position.
FR7503700A 1975-02-06 1975-02-06 Diamond frame screw jack with horizontal screw - has each screw trunnion made in two pieces inserted from opposite sides Granted FR2300039A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7503700A FR2300039A1 (en) 1975-02-06 1975-02-06 Diamond frame screw jack with horizontal screw - has each screw trunnion made in two pieces inserted from opposite sides
JP1089576A JPS51102860A (en) 1975-02-06 1976-02-05 HINJISHIKI HISHIGATAKOZONORIFUTO * JATSUKI

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7503700A FR2300039A1 (en) 1975-02-06 1975-02-06 Diamond frame screw jack with horizontal screw - has each screw trunnion made in two pieces inserted from opposite sides

Publications (2)

Publication Number Publication Date
FR2300039A1 true FR2300039A1 (en) 1976-09-03
FR2300039B1 FR2300039B1 (en) 1979-09-28

Family

ID=9150851

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7503700A Granted FR2300039A1 (en) 1975-02-06 1975-02-06 Diamond frame screw jack with horizontal screw - has each screw trunnion made in two pieces inserted from opposite sides

Country Status (1)

Country Link
FR (1) FR2300039A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2389571A1 (en) * 1977-05-03 1978-12-01 Noury Roger Toggle type screw jack for automobile - has cover for screw thread to prevent user soiling hands
US4493478A (en) * 1981-12-08 1985-01-15 Ab Volvo Jack
EP0340551A1 (en) * 1988-05-05 1989-11-08 E.A. Storz Gmbh & Co. Kg Jack
FR2655968A1 (en) * 1989-12-15 1991-06-21 Renault Jack articulation
EP0515803A1 (en) * 1991-04-30 1992-12-02 AUGUST BILSTEIN GMBH & CO. KG Vehicle jack
EP0557125A1 (en) * 1992-02-20 1993-08-25 Metallifacture Limited Vehicle jack

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2389571A1 (en) * 1977-05-03 1978-12-01 Noury Roger Toggle type screw jack for automobile - has cover for screw thread to prevent user soiling hands
US4493478A (en) * 1981-12-08 1985-01-15 Ab Volvo Jack
EP0340551A1 (en) * 1988-05-05 1989-11-08 E.A. Storz Gmbh & Co. Kg Jack
FR2655968A1 (en) * 1989-12-15 1991-06-21 Renault Jack articulation
EP0515803A1 (en) * 1991-04-30 1992-12-02 AUGUST BILSTEIN GMBH & CO. KG Vehicle jack
EP0557125A1 (en) * 1992-02-20 1993-08-25 Metallifacture Limited Vehicle jack

Also Published As

Publication number Publication date
FR2300039B1 (en) 1979-09-28

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Legal Events

Date Code Title Description
TP Transmission of property
CL Concession to grant licenses