GB1423749A - Jacks - Google Patents

Jacks

Info

Publication number
GB1423749A
GB1423749A GB1834573A GB1834573A GB1423749A GB 1423749 A GB1423749 A GB 1423749A GB 1834573 A GB1834573 A GB 1834573A GB 1834573 A GB1834573 A GB 1834573A GB 1423749 A GB1423749 A GB 1423749A
Authority
GB
United Kingdom
Prior art keywords
pivoted
jack
platform
cross
bar
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
GB1834573A
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.)
Dunlop Ltd
Original Assignee
Dunlop Ltd
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 Dunlop Ltd filed Critical Dunlop Ltd
Publication of GB1423749A publication Critical patent/GB1423749A/en
Expired 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • 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
    • B66F3/22—Lazy-tongs mechanisms
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B66F7/0666—Multiple scissor linkages vertically arranged
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • B66F7/085—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated pneumatically operated

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

1423749 Lazy-tong jacks and lifting platforms DUNLOP Ltd 17 April 1973 [19 April 1972] 18345/73 Headings B8J and B8H A jack comprises a rectangular base 1 on each side of which are two pairs of cross-pieces pivoted at their centres 3. One cross-piece of each pair is pivoted at 4 near the end of the base 1, the other cross-piece resting on the base via a roller 5. The cross-pieces 2 support a platform 6, one being pivoted to it at 7, the other bearing a roller 8 in a rail (not shown). Pneumatic bellows 9 between the base 1 and the platform 6 can be inflated to raise the platform 6. At least one further platform 10 can be supported from the platform 6 in a similar manner. A safety device is provided to prevent collapse of the jack should the bellows 9 be accidentally deflated. This device comprises a stop member in the form of a bar 13 pivoted at 14 to one of the cross-pieces 2 at its lower end with the roller 5. Abutment faces on block 16, 17 are provided to engage the lower ends of the other crosspieces 2 adjacent their rollers 5. The bar 13 may be disengaged by a lever 19. the lever being automatically returned to its inactive position by a lug 21 on the bar 13 when the jack is lowered. The bar 13 automatically comes into action as the jack is raised as the blocks 16, 17 are bevelled on their non-abutment ends. In a modification (not shown) the safety bar is pivoted to the base of the jack.
GB1834573A 1972-04-19 1973-04-17 Jacks Expired GB1423749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7213759A FR2180511B1 (en) 1972-04-19 1972-04-19

Publications (1)

Publication Number Publication Date
GB1423749A true GB1423749A (en) 1976-02-04

Family

ID=9097140

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1834573A Expired GB1423749A (en) 1972-04-19 1973-04-17 Jacks

Country Status (3)

Country Link
FR (1) FR2180511B1 (en)
GB (1) GB1423749A (en)
IT (1) IT983997B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125015A (en) * 1982-08-12 1984-02-29 Simon Solitec Ltd Lifting and guiding apparatus for e.g. a valve for discharging a silo
ITUD20080173A1 (en) * 2008-07-23 2010-01-24 A C R Di Romano Livio & C S N C "PANTOGRAPH LIFT"
US20180119432A1 (en) * 2015-05-21 2018-05-03 Salita Ip Pty Ltd Scaffold unit
CN109231073A (en) * 2017-11-15 2019-01-18 湖南永联传动科技有限公司 A kind of stable lifting device, transport trolley and sky parking
CN110436380A (en) * 2019-08-16 2019-11-12 贵州恩煜祥物流有限责任公司 A kind of logistics device for automobile parts entrucking

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645193A1 (en) * 1989-03-31 1990-10-05 Sarazin Maurice Device with self-extending structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2132343A (en) * 1935-05-02 1938-10-04 Annabelle Moss Lifting jack for automobiles

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125015A (en) * 1982-08-12 1984-02-29 Simon Solitec Ltd Lifting and guiding apparatus for e.g. a valve for discharging a silo
ITUD20080173A1 (en) * 2008-07-23 2010-01-24 A C R Di Romano Livio & C S N C "PANTOGRAPH LIFT"
EP2147891A1 (en) 2008-07-23 2010-01-27 A.C.R.. di Romano Livio & C. s.n.c. Platform with scissor lift
US20180119432A1 (en) * 2015-05-21 2018-05-03 Salita Ip Pty Ltd Scaffold unit
CN109231073A (en) * 2017-11-15 2019-01-18 湖南永联传动科技有限公司 A kind of stable lifting device, transport trolley and sky parking
CN109339524A (en) * 2017-11-15 2019-02-15 湖南永联传动科技有限公司 A kind of article carrying platform and the transport trolley for stereo garage
CN109339522A (en) * 2017-11-15 2019-02-15 湖南永联传动科技有限公司 A kind of sky parking
CN109339524B (en) * 2017-11-15 2023-10-24 湖南永联传动科技有限公司 Carrying platform and transportation trolley for stereo garage
CN109339522B (en) * 2017-11-15 2023-12-29 湖南永联传动科技有限公司 Three-dimensional parking lot
CN109231073B (en) * 2017-11-15 2024-07-09 湖南永联传动科技有限公司 Stable lifting device, transport trolley and three-dimensional parking lot
CN110436380A (en) * 2019-08-16 2019-11-12 贵州恩煜祥物流有限责任公司 A kind of logistics device for automobile parts entrucking

Also Published As

Publication number Publication date
FR2180511A1 (en) 1973-11-30
IT983997B (en) 1974-11-11
FR2180511B1 (en) 1974-12-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee