GB1278323A - Improvements in or relating to lifting platforms with loading flaps - Google Patents

Improvements in or relating to lifting platforms with loading flaps

Info

Publication number
GB1278323A
GB1278323A GB2275269A GB2275269A GB1278323A GB 1278323 A GB1278323 A GB 1278323A GB 2275269 A GB2275269 A GB 2275269A GB 2275269 A GB2275269 A GB 2275269A GB 1278323 A GB1278323 A GB 1278323A
Authority
GB
United Kingdom
Prior art keywords
platform
flap
vehicle
cylinder
lowered
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
GB2275269A
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.)
HYDRAULMEKANO AB
Original Assignee
HYDRAULMEKANO AB
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 HYDRAULMEKANO AB filed Critical HYDRAULMEKANO AB
Publication of GB1278323A publication Critical patent/GB1278323A/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
    • B66F7/065—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
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

1278323 Platform elevators for loading vehicles HYDRAULMEKANO AB 5 May 1969 [3 May 1968] 22752/69 Headings B8E and B8H A lifting platform 1 is raised and lowered by a cylinder C1 coacting with a linkage 21. A loading flap 2 pivoted to the platform 1 bridges the gap to a vehicle 3 to be loaded or unloaded. Variations in the height of the vehicle 3 are automatically compensated by control means comprising limit switches LS.2, LS.3 coacting with rings 7, 8 adjustably mounted on a rod 5 extending between the flap 2 and the platform 1 in parallel with a cylinder C2. If the vehicle 3 rises, e.g. due to unloading, the flap 2 pivots upwardly actuating LS.3 causing the cylinder C1 to raise the platform 1 to restore the initial condition. Conversely, a fall in the vehicle 3 actuates LS.2 resulting in the platform 1 being lowered. A predetermined, preferably horizontal attitude of the flap 2 is thus maintained. Limit switch LS.4, in series with LS.2, LS.3 (Fig. 4, not shown), determines the range over which the device operates, while limit switch LS.1 ensures that the flap 2 is swung upwards fully before the platform 1 is fully lowered.
GB2275269A 1968-05-03 1969-05-05 Improvements in or relating to lifting platforms with loading flaps Expired GB1278323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE598068A SE315247B (en) 1968-05-03 1968-05-03

Publications (1)

Publication Number Publication Date
GB1278323A true GB1278323A (en) 1972-06-21

Family

ID=20267658

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2275269A Expired GB1278323A (en) 1968-05-03 1969-05-05 Improvements in or relating to lifting platforms with loading flaps

Country Status (2)

Country Link
GB (1) GB1278323A (en)
SE (1) SE315247B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236090A (en) * 1989-09-09 1991-03-27 Thomas John Carpenter Portable vehicle access platform
GB2291033A (en) * 1994-06-20 1996-01-17 Alten K Transfer bridge for dock leveler
CN106809767A (en) * 2017-03-17 2017-06-09 中国船舶重工集团公司第七�三研究所 A kind of bellows automatic lifting adjustment mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236090A (en) * 1989-09-09 1991-03-27 Thomas John Carpenter Portable vehicle access platform
GB2291033A (en) * 1994-06-20 1996-01-17 Alten K Transfer bridge for dock leveler
GB2291033B (en) * 1994-06-20 1998-02-18 Alten K Transfer bridge for platforms
CN106809767A (en) * 2017-03-17 2017-06-09 中国船舶重工集团公司第七�三研究所 A kind of bellows automatic lifting adjustment mechanism
CN106809767B (en) * 2017-03-17 2019-03-15 中船重工海为郑州高科技有限公司 A kind of bellows automatic lifting adjustment mechanism

Also Published As

Publication number Publication date
DE1921854A1 (en) 1969-11-27
DE1921854B2 (en) 1977-06-23
SE315247B (en) 1969-09-22

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Legal Events

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