GB1317859A - Three-stage lift mast for a lift truck - Google Patents

Three-stage lift mast for a lift truck

Info

Publication number
GB1317859A
GB1317859A GB1317859DA GB1317859A GB 1317859 A GB1317859 A GB 1317859A GB 1317859D A GB1317859D A GB 1317859DA GB 1317859 A GB1317859 A GB 1317859A
Authority
GB
United Kingdom
Prior art keywords
mast
section
upright
lift
sections
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
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.)
Bygg Och Transportekonomi BT AB
Original Assignee
Bygg Och Transportekonomi BT 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 Bygg Och Transportekonomi BT AB filed Critical Bygg Och Transportekonomi BT AB
Publication of GB1317859A publication Critical patent/GB1317859A/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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/08—Masts; Guides; Chains

Landscapes

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

Abstract

1317859 Lift truck mast assemblies BYGGOCH TRANSPORTEKONOMI (BT) AB 20 Aug 1971 39227/71 Heading B8H In a three-section mast assembly, the intermediate section is provided with at least one guide roller which engages both the inner and outer sections at least when the mast assembly is not extended. As shown in Fig. 7, each upright 11 of the intermediate section is provided with two rows of guide rollers 18, 19, each of which engages a groove 23 in the adjacent flange of the fixed, outer, upright 8 and a projecting flange 22 of the inner upright 14. The assembly is extended by means of a telescopic hydraulic ram 30, 31, 32, which is connected between upper and lower cross-members 16, 12 of the inner and intermediate mast sections and which is connected to a pressure fluid source by a supply pipe 33, and chains 35 secured to the upper end of the fixed mast section and to the lifting carriage 4 and passing around rollers 37, 38 on the intermediate and upper sections.
GB1317859D 1971-08-20 1971-08-20 Three-stage lift mast for a lift truck Expired GB1317859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3922771 1971-08-20

Publications (1)

Publication Number Publication Date
GB1317859A true GB1317859A (en) 1973-05-23

Family

ID=10408394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1317859D Expired GB1317859A (en) 1971-08-20 1971-08-20 Three-stage lift mast for a lift truck

Country Status (1)

Country Link
GB (1) GB1317859A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260119A (en) * 1991-09-05 1993-04-07 Moffett Res & Dev Ltd A multi-stage mast for a forklift truck

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260119A (en) * 1991-09-05 1993-04-07 Moffett Res & Dev Ltd A multi-stage mast for a forklift truck
US5328321A (en) * 1991-09-05 1994-07-12 Moffett Research And Development Limited Multi-stage mast for a forklift truck

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Legal Events

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