GB1457974A - Mast for a lift truck - Google Patents

Mast for a lift truck

Info

Publication number
GB1457974A
GB1457974A GB590874A GB590874A GB1457974A GB 1457974 A GB1457974 A GB 1457974A GB 590874 A GB590874 A GB 590874A GB 590874 A GB590874 A GB 590874A GB 1457974 A GB1457974 A GB 1457974A
Authority
GB
United Kingdom
Prior art keywords
members
elongate
flanges
channel
elongate members
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
GB590874A
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.)
Caterpillar Industrial Inc
Original Assignee
Towmotor Corp
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 Towmotor Corp filed Critical Towmotor Corp
Publication of GB1457974A publication Critical patent/GB1457974A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49641—Linear bearing

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

1457974 Elevation guides TOWMOTOR CORP 8 Feb 1974 [8 Feb 1973] 05908/74 Heading B8L A telescopic mast assembly on a fork lift truck comprises a pair of elongate members 44, 46 slidable within a pair of fixed upright channel base members 24, 26, the elongate members 44, 46 each having only one edge flange 52, 56 extending towards the adjacent channel member and between edge flanges thereof. Bottom rollers 58, 62 mounted at the lower ends of the elongate members and top rollers 66, 70 mounted at the upper ends of the channel members engage the adjacent channel members and elongate members respectively during telescopic movement of the mast, the single flanges 52, 56 on the elongate members and the front flanges 34, 40 on the channel members being cut away in the vicinity of the respective rollers. The junction of the flanges 52, 56 and 36, 42 with the elongate and channel members, are angled 78, 80, 74, 76 for roller engagement. A load lifting carriage 82 movable up and down the elongate members 44, 46 of the mast engages the members 44, 46 through stabilizing rollers 96, 100, 104, 106 mounted on the carriage 82.
GB590874A 1973-02-08 1974-02-08 Mast for a lift truck Expired GB1457974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00330890A US3851732A (en) 1973-02-08 1973-02-08 Mast and carriage for a lift truck

Publications (1)

Publication Number Publication Date
GB1457974A true GB1457974A (en) 1976-12-08

Family

ID=23291746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB590874A Expired GB1457974A (en) 1973-02-08 1974-02-08 Mast for a lift truck

Country Status (5)

Country Link
US (1) US3851732A (en)
BE (1) BE810617A (en)
CA (1) CA1002905A (en)
FR (1) FR2274545A1 (en)
GB (1) GB1457974A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES430087A1 (en) * 1973-09-07 1976-10-16 Cubic Handling Systems Nv Movable stacking device
US3999267A (en) * 1975-09-22 1976-12-28 Towmotor Corporation Method for assembling a lift truck mast
US4124104A (en) * 1976-04-14 1978-11-07 Towmotor Corporation Lift mask carriage mounting arrangement
EP0113711A1 (en) * 1982-06-25 1984-07-25 Towmotor Corporation High-visibility mast assembly for lift trucks
JPS606598A (en) * 1983-06-27 1985-01-14 小松フオ−クリフト株式会社 Mast device
SE460116B (en) * 1985-02-01 1989-09-11 Jungheinrich Kg TRANSPORTDON, IN PARTICULAR STACKING VEHICLE
US5145034A (en) * 1988-12-08 1992-09-08 Hyster Company Lift truck fork carriage
US5326217A (en) * 1990-09-24 1994-07-05 Clark Material Handling Company Lift truck with negative drop upright
US5320197A (en) * 1993-02-19 1994-06-14 Clark Material Handling Company Sextuple upright
US5515945A (en) * 1994-04-18 1996-05-14 Genie Industries, Inc. Multi-stage mast assembly for portable lifts
US20030057027A1 (en) * 2001-09-21 2003-03-27 Simpson Stan J. Mast for a fork lift
US7195105B2 (en) * 2004-06-21 2007-03-27 Tygard Machine & Manufacturing Company Lift truck
US10329130B2 (en) * 2013-11-05 2019-06-25 Hyster-Yale Group, Inc. Lift chain tension relieving devices and methods
CN108689350B (en) * 2017-03-30 2021-06-08 雷蒙德股份有限公司 Extendable mast system and method for a materials handling vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456320A (en) * 1947-02-24 1948-12-14 Ross Carrier Company Lift truck
US2643162A (en) * 1950-08-01 1953-06-23 Roller Bearing Company Antifriction carriage roller
US2936047A (en) * 1957-10-16 1960-05-10 Yale & Towne Mfg Co Lift truck
US3506092A (en) * 1967-07-14 1970-04-14 Toyoda Automatic Loom Works Lift truck
US3556247A (en) * 1967-11-07 1971-01-19 Toyoda Automatic Loom Works Lift truck

Also Published As

Publication number Publication date
US3851732A (en) 1974-12-03
BE810617A (en) 1974-08-05
CA1002905A (en) 1977-01-04
FR2274545A1 (en) 1976-01-09
FR2274545B1 (en) 1978-10-20
AU6463474A (en) 1975-07-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee