GB2074959A - Track tensioning apparatus - Google Patents

Track tensioning apparatus

Info

Publication number
GB2074959A
GB2074959A GB8106413A GB8106413A GB2074959A GB 2074959 A GB2074959 A GB 2074959A GB 8106413 A GB8106413 A GB 8106413A GB 8106413 A GB8106413 A GB 8106413A GB 2074959 A GB2074959 A GB 2074959A
Authority
GB
United Kingdom
Prior art keywords
track
wheels
frame
pivotally connected
assembly
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.)
Granted
Application number
GB8106413A
Other versions
GB2074959B (en
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 Inc
Original Assignee
Caterpillar Tractor Co
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
Priority claimed from US06/092,915 external-priority patent/US4227748A/en
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB2074959A publication Critical patent/GB2074959A/en
Application granted granted Critical
Publication of GB2074959B publication Critical patent/GB2074959B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D49/00—Tractors
    • B62D49/06—Tractors adapted for multi-purpose use
    • B62D49/0621—Tractors adapted for multi-purpose use comprising traction increasing arrangements, e.g. all-wheel traction devices, multiple-axle traction arrangements, auxiliary traction increasing devices
    • B62D49/0635—Tractors adapted for multi-purpose use comprising traction increasing arrangements, e.g. all-wheel traction devices, multiple-axle traction arrangements, auxiliary traction increasing devices using additional ground engaging means, e.g. endless tracks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/30—Track-tensioning means
    • B62D55/305—Track-tensioning means acting on pivotably mounted idlers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

A continuous track assembly (12) has a frame (16) and a first element (18) pivotally connected to the frame (16). A second element (20) is pivotally connected to the first element (18). Each element (18, 20) has a rotatable wheel (22, 24) about both of which a track (30) is positioned. The wheel (22) of the first element (18) is rotated by power and driving apparatus (36, 44) in an associated work vehicle (10) to drive the track (30). Tension in the track (30) is maintained at a preselected level by apparatus (50) which moves the second element (20) relative to the first element (18) to position the wheels (22, 24) against the track (30). The wheels (22, 24) are freely pivotally movable as a unit to enable the track assembly (12) to readily adapt to its environment and maximize tractive effort. Maintaining the desired track tension substantially overcomes problems associated with a track which is too loose or tight which can result in slipping or damage to the track assembly (12).
GB8106413A 1979-11-09 1979-12-03 Track tensioning apparatus Expired GB2074959B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/092,915 US4227748A (en) 1978-05-26 1979-11-09 Track tensioning apparatus

Publications (2)

Publication Number Publication Date
GB2074959A true GB2074959A (en) 1981-11-11
GB2074959B GB2074959B (en) 1983-11-02

Family

ID=22235774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8106413A Expired GB2074959B (en) 1979-11-09 1979-12-03 Track tensioning apparatus

Country Status (4)

Country Link
JP (1) JPS56501481A (en)
GB (1) GB2074959B (en)
SE (1) SE8102485L (en)
WO (1) WO1981001395A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE38858E1 (en) 1983-12-20 2005-11-01 Caterpillar Inc. Frictionally driven belted work machine
AU578024B2 (en) * 1983-12-20 1988-10-13 Caterpillar Inc. Frictionally driven belted work vehicle
EP2050664B1 (en) 2007-10-18 2010-04-14 Joseph Voegele AG Crawler undercarriage

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453750A (en) * 1944-05-01 1948-11-16 Allis Chalmers Mfg Co Endless track mechanism
US2537745A (en) * 1944-08-23 1951-01-09 Oliver Corp Track and supporting mechanism for crawler type tractors
US2584512A (en) * 1948-08-13 1952-02-05 Claude A Strait Caterpillar attachment for trucks
US2998998A (en) * 1958-03-07 1961-09-05 Letourneau Westinghouse Compan Load responsive track tensioning device
US3375944A (en) * 1965-01-26 1968-04-02 Int Harvester Co Control device for bogie suspension of loaders
GB1093802A (en) * 1965-02-17 1967-12-06 Go Tract Ltd Track assembly for a track-laying vehicle
US3841424A (en) * 1971-12-27 1974-10-15 Caterpillar Tractor Co Triangular track resilient bogie suspension
NO132719C (en) * 1973-04-26 1976-11-16 Glamox As
SU491513A1 (en) * 1973-06-01 1975-11-15 Харьковский Ордена Ленина Политехнический Институт Им.В.И.Ленина Device for tensioning the vehicle track chain

Also Published As

Publication number Publication date
GB2074959B (en) 1983-11-02
JPS56501481A (en) 1981-10-15
WO1981001395A1 (en) 1981-05-28
SE8102485L (en) 1981-05-10

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee