GB1431988A - Lifting mechanism - Google Patents

Lifting mechanism

Info

Publication number
GB1431988A
GB1431988A GB2508873A GB2508873A GB1431988A GB 1431988 A GB1431988 A GB 1431988A GB 2508873 A GB2508873 A GB 2508873A GB 2508873 A GB2508873 A GB 2508873A GB 1431988 A GB1431988 A GB 1431988A
Authority
GB
United Kingdom
Prior art keywords
lever
pivotally
pivotally connected
bell crank
levers
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
GB2508873A
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 GB2508873A priority Critical patent/GB1431988A/en
Publication of GB1431988A publication Critical patent/GB1431988A/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
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms

Landscapes

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

Abstract

1431988 Platform elevators J TRANCHERO 25 May 1973 25088/73 Heading B8H A platform elevator comprises a wheeled base with a pair of upstanding supports 5 to which pairs of levers 8, 15 are pivotally mounted to pivotally support a lever 18 acted upon by an hydraulic actuator 7 pivotally mounted to the base. A further lever 20 is pivotally connected at 19 to the lever 18 and is also pivotally connected to a tie-bar 22 coupled to the lever 16. A further lever 28 is pivotally connected at 29 to the lever 20 and is also pivotally connected to a tie rod 25 coupled to the lever 18. A bell crank 31 is pivotally connected to the lever 28 and to a tie-bar 32, connected to the lever 20, and forms with two pairs of levers 37, 38, pivotally connected thereto, and a further bell crank 41 a first parallelogram pivotable by an hydraulic actuator 50. A further two pairs of levers 44, 45 are connected to the bell crank 41 and together therewith and with a bracket 48 form a second parallelogram pivotally movable by an hydraulic actuator 54. A platform or cage is mounted on the bracket and remains substantially horizontal during the lifting and lowering thereof. In a modification of the elevator (Fig. 4) not shown the bell crank 31 is connected directly to the lever 18 and the tiebar 22.
GB2508873A 1973-05-25 1973-05-25 Lifting mechanism Expired GB1431988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2508873A GB1431988A (en) 1973-05-25 1973-05-25 Lifting mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2508873A GB1431988A (en) 1973-05-25 1973-05-25 Lifting mechanism

Publications (1)

Publication Number Publication Date
GB1431988A true GB1431988A (en) 1976-04-14

Family

ID=10222013

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2508873A Expired GB1431988A (en) 1973-05-25 1973-05-25 Lifting mechanism

Country Status (1)

Country Link
GB (1) GB1431988A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521969A1 (en) * 1982-02-25 1983-08-26 Tranchero Jacques VEHICLE TRANSPORTABLE MACHINE, CAPABLE OF LIFTING A NACELLE AT DIFFERENT HEIGHTS
GB2120633A (en) * 1982-05-22 1983-12-07 Benford Limited Access apparatus
FR2597082A1 (en) * 1986-04-14 1987-10-16 Tranchero Jacques SELF-TRANSPORTABLE CRANE WITH ARTICULATED ARM COMPRISING THREE HYDRAULIC LIFTING STAGES
CN111086961A (en) * 2020-01-19 2020-05-01 浙江鼎力机械股份有限公司 Crank arm lifting structure of crank arm type aerial work platform truck

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521969A1 (en) * 1982-02-25 1983-08-26 Tranchero Jacques VEHICLE TRANSPORTABLE MACHINE, CAPABLE OF LIFTING A NACELLE AT DIFFERENT HEIGHTS
GB2116939A (en) * 1982-02-25 1983-10-05 Jacques Tranchero All apparatus transportable on a motor vehicle and capable of raising a working compartment to different heights
AT395132B (en) * 1982-02-25 1992-09-25 Tranchero Jacques LIFTING DEVICE FOR LIFTING A GONDOLA BY MEANS OF A MOTOR VEHICLE
GB2120633A (en) * 1982-05-22 1983-12-07 Benford Limited Access apparatus
FR2597082A1 (en) * 1986-04-14 1987-10-16 Tranchero Jacques SELF-TRANSPORTABLE CRANE WITH ARTICULATED ARM COMPRISING THREE HYDRAULIC LIFTING STAGES
CN111086961A (en) * 2020-01-19 2020-05-01 浙江鼎力机械股份有限公司 Crank arm lifting structure of crank arm type aerial work platform truck

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930524