JPS56138068A - Device for reducing noise generated around idler in crawler type vehicle - Google Patents

Device for reducing noise generated around idler in crawler type vehicle

Info

Publication number
JPS56138068A
JPS56138068A JP4257880A JP4257880A JPS56138068A JP S56138068 A JPS56138068 A JP S56138068A JP 4257880 A JP4257880 A JP 4257880A JP 4257880 A JP4257880 A JP 4257880A JP S56138068 A JPS56138068 A JP S56138068A
Authority
JP
Japan
Prior art keywords
annular member
air tube
noise generated
track
type vehicle
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
JP4257880A
Other languages
Japanese (ja)
Other versions
JPS6341793B2 (en
Inventor
Yoshiaki Kishitani
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 Mitsubishi Ltd
Original Assignee
Caterpillar Mitsubishi Ltd
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 Caterpillar Mitsubishi Ltd filed Critical Caterpillar Mitsubishi Ltd
Priority to JP4257880A priority Critical patent/JPS56138068A/en
Publication of JPS56138068A publication Critical patent/JPS56138068A/en
Publication of JPS6341793B2 publication Critical patent/JPS6341793B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To prolong extremely the service life of the noise reducing device by pressing an annular member of a hard material having a frictional consumption resistance by means of an air tube.
CONSTITUTION: The noise reducing device includes the air tube 10 provided along the outer peripheral surface 9 of an idler body 3 and the annular member 11 superposed thereon. These are located between a pair of rims 8, 8 to be retained around the idler body 3. The annular member 11 is made of a hard and frictional consumption resisting material and has at least one separation part at which it can increase or decrease its radius in accordance with an expansion and contraction of the air tube 10. The inner pressure of the air tube 10 is adjusted such that a track link 6 is separated from a treading surface 7 by pressing constantly a track bush 14 of a track chain 5 outwardly in the radial direction by means of the flange part 15 of the annular member 11. Thus, a metallic tapping noise generated by a direct contact between the track link 6 and the treading surface is much reduced.
COPYRIGHT: (C)1981,JPO&Japio
JP4257880A 1980-04-01 1980-04-01 Device for reducing noise generated around idler in crawler type vehicle Granted JPS56138068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4257880A JPS56138068A (en) 1980-04-01 1980-04-01 Device for reducing noise generated around idler in crawler type vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4257880A JPS56138068A (en) 1980-04-01 1980-04-01 Device for reducing noise generated around idler in crawler type vehicle

Publications (2)

Publication Number Publication Date
JPS56138068A true JPS56138068A (en) 1981-10-28
JPS6341793B2 JPS6341793B2 (en) 1988-08-18

Family

ID=12639945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4257880A Granted JPS56138068A (en) 1980-04-01 1980-04-01 Device for reducing noise generated around idler in crawler type vehicle

Country Status (1)

Country Link
JP (1) JPS56138068A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207489A (en) * 1992-03-19 1993-05-04 Case Corporation Noise reduction apparatus for a track system of an off-highway implement
US5829849A (en) * 1996-11-27 1998-11-03 Caterpillar Inc. Undercarriage assembly for attack-type machine
US7905559B2 (en) * 2008-12-10 2011-03-15 Caterpillar Inc Isolated center tread rim idler wheel
WO2012087450A1 (en) * 2010-12-21 2012-06-28 Caterpillar Inc. Compound rim assembly for idler in an undercarriage system of a track-type machine
EP2548789A1 (en) * 2011-07-18 2013-01-23 Joseph Vögele AG Track assembly
US8770676B2 (en) 2010-12-21 2014-07-08 Caterpillar Inc. Rotatable idler for undercarriage system in a track-type machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207489A (en) * 1992-03-19 1993-05-04 Case Corporation Noise reduction apparatus for a track system of an off-highway implement
US5829849A (en) * 1996-11-27 1998-11-03 Caterpillar Inc. Undercarriage assembly for attack-type machine
US7905559B2 (en) * 2008-12-10 2011-03-15 Caterpillar Inc Isolated center tread rim idler wheel
WO2012087450A1 (en) * 2010-12-21 2012-06-28 Caterpillar Inc. Compound rim assembly for idler in an undercarriage system of a track-type machine
US8770676B2 (en) 2010-12-21 2014-07-08 Caterpillar Inc. Rotatable idler for undercarriage system in a track-type machine
US8770677B2 (en) 2010-12-21 2014-07-08 Caterpillar Inc. Compound rim assembly for idler in an undercarriage system of a track-type machine
EP2548789A1 (en) * 2011-07-18 2013-01-23 Joseph Vögele AG Track assembly
US9168961B2 (en) 2011-07-18 2015-10-27 Joseph Vogele Ag Tracklaying gear

Also Published As

Publication number Publication date
JPS6341793B2 (en) 1988-08-18

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