WO2005073060A1 - 芯金レスゴムクローラ走行装置 - Google Patents
芯金レスゴムクローラ走行装置 Download PDFInfo
- Publication number
- WO2005073060A1 WO2005073060A1 PCT/JP2005/001183 JP2005001183W WO2005073060A1 WO 2005073060 A1 WO2005073060 A1 WO 2005073060A1 JP 2005001183 W JP2005001183 W JP 2005001183W WO 2005073060 A1 WO2005073060 A1 WO 2005073060A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rubber
- elastic body
- inner peripheral
- rubber elastic
- rolling
- Prior art date
Links
Classifications
-
- 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
- B62D55/14—Arrangement, location, or adaptation of rollers
-
- 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
- B62D55/18—Tracks
- B62D55/24—Tracks of continuously flexible type, e.g. rubber belts
- B62D55/244—Moulded in one piece, with either smooth surfaces or surfaces having projections, e.g. incorporating reinforcing elements
Definitions
- the present invention relates to a coreless rubber-crawler traveling device, and more particularly to a coreless rubber-crawler traveling device with improved riding comfort.
- a rubber track traveling apparatus without a cored bar is mainly applied to a vehicle traveling at a relatively high speed.
- the core metal is not embedded in the rubber, vibration and the like are relatively small.
- a powerful rubber crawler to further improve ride comfort.
- FIG. 7 is a cross-sectional view showing a relationship between a core metal-less rubber crawler 30 and a rolling wheel 40 which have been widely used conventionally.
- the rubber elastic body 31 in which the core metal is not buried usually has an inner peripheral surface 32 which is flat, and a main cord row 33 is provided in substantially the entire area in the longitudinal direction of the rubber crawler. Further, rubber projections 34 projecting inward from the inner peripheral surface 32 are arranged at a constant pitch. A rubber lug 35 is formed on the outer peripheral surface of the rubber elastic body 31.
- a rolling wheel 40 provided on the body side rolls on an inner circumferential rolling surface 32a of an inner circumferential surface 32 of the rubber crawler 30 with a rubber projection 34 formed inside the rubber crawler 30 interposed therebetween.
- the outer surface 41 of the wheel is configured to roll.
- the contact area between the inner peripheral rolling surface 32a of the inner peripheral surface 32 of the rubber elastic body 31 and the rolling wheel 40 is always constant, and the spring Sex is not enough.
- the rubber crawler 30 has a structure in which the vibration is transmitted to the occupant as it is.
- the durability of rubber crawlers eg, the occurrence of rubber cracks
- the ride comfort is not sufficient.
- the present invention has improved such a disadvantage in consideration of the balance with durability.
- the gist of the present invention is that an endless rubber elastic body, a main cord row embedded in the longitudinal direction, a rubber projection formed at a constant pitch on an inner peripheral surface thereof, and a rubber projection formed on an outer peripheral surface thereof.
- a rubber lug, a coreless rubber crawler, and rolling wheels provided on the machine body side with the left and right sides of the rubber projections in the width direction interposed therebetween.
- This is a coreless rubber-crawler traveling device that rolls in contact with the surface, and the area of contact between the endless inner rolling surface with a fixed width and the outer surface of the roller is the area of the outer surface of the roller.
- the present invention provides a core-crawlerless rubber crawler traveling device characterized in that the ratio is 30 to 70% of that of the prior art.
- the contact area between the outer surface of the rolling wheel and the inner peripheral rolling surface of the rubber elastic body is reduced, instead of simply bringing the inner surface into contact with each other.
- the rubber crawler By giving the rubber crawler, the elasticity of the rubber elastic body constituting the rubber crawler is expressed, and vibrations and the like are absorbed to improve the riding comfort.
- the contact area between the inner peripheral rolling surface of the rubber elastic body and the outer surface of the rolling wheel is set to 30 to 70%, preferably 30 to 50% with respect to the outer surface area of the rolling wheel.
- the elasticity of the rubber elastic body is brought about by the reduced contact area.
- the contact area is too small, the surface pressure increases, and the above-mentioned specific range is preferable in terms of the area ratio in consideration of the balance between spring elasticity and durability, which is unfavorable in terms of durability.
- the inner rolling surface is an endless surface having a constant width, and therefore, a constant spring property is always exhibited.
- the inner peripheral surface of the rubber elastic body with respect to the (flat) outer surface of the rolling wheel.
- a step is formed on the surface to make the inner peripheral surface an upper step surface and a lower step surface, and is brought into contact with the upper step surface (inner peripheral rolling surface) to reduce the contact area.
- the powerful step may be a simple flat two-step, or it may be formed through an inclined surface.
- a step is formed on the outer surface of the roller relative to the inner peripheral surface of the rubber elastic band.
- the inner peripheral surface of the rubber elastic body has two steps, the width of the rolling wheel is wider than the width of the upper step surface, and a rubber crawler with good riding comfort and high durability has been obtained. Things.
- a step is formed on the outer peripheral surface of the rubber elastic body in the width direction, depending on the force.
- a step is formed on the outer surface of the rolling wheel on the outer side in the width direction of the rubber crawler. Also is there.
- the rubber elastic body has an upper surface (inner rolling surface) at the center of the inner surface and a lower surface at the outer side in the width direction.
- a lower step surface is formed on the step portion to be pressed through an inclined surface.
- the contact area is simply reduced, the contact pressure when the rolling wheel rolls may increase, and the durability of the rubber elastic body may decrease.
- a step is formed on the wheel side while applying force, and a slightly smaller wheel portion is provided to prevent intrusion of stones and gravel.
- the rubber on the upper side is radiused, so that the lower diameter side (non-contact step) normally comes into contact with the small-diameter rolling part with a light surface pressure.
- the rubber elastic body is unlikely to be damaged because it is involved on the lower step side (usually formed outside the left and right widths of the rubber projections), which is the part where the surface pressure is low. Needless to say, the wheels do not come into contact with the lower surface during running, or may remain as they are.
- the traveling device having the above configuration, the contact area between the endless inner rolling surface having a constant width and the outer surface of the rolling wheel can be reduced while taking into account the durability of rubber cracks and the like. As a result, riding comfort is improved by always having springiness.
- FIG. 1 is an inner peripheral plan view of a rubber track of the present invention.
- FIG. 2 is a plan view of the outer peripheral side of FIG. 1.
- FIG. 3 is a side view of FIG. 1.
- FIG. 4 is a cross-sectional view taken along the line XX of FIG. 1.
- FIG. 5 shows a second embodiment of the present invention.
- FIG. 6 shows a third embodiment of the present invention.
- FIG. 7 is a view showing a conventional rubber track traveling device.
- FIG. 1 is a plan view of an inner peripheral side of a rubber crawler of the present invention
- FIG. 2 is a plan view of an outer peripheral side
- FIG. 3 is a side view including a cross-sectional view taken along line Y--Y of FIG. 1
- FIG. -It is an X-ray sectional view.
- a rubber crawler according to one embodiment of the present invention is designated by reference numeral 10 in the figures.
- a core metal is buried in the rubber elastic body 11 of the rubber crawler 10, and the rubber crawler 10 has a structure.
- a steel code row 13 as a main code is embedded endlessly in the longitudinal direction over substantially the entire width of the rubber elastic body 11 (the horizontal direction in FIG. 1).
- a rubber lug 15 is formed outside the rubber elastic body 11.
- the rubber lugs 15 have a deformed H-shape as a whole in plan view, and are formed in a staggered manner on the left and right sides in the width direction of the rubber elastic body 11.
- the shape of the rubber lug 15 is not particularly limited, but in the present embodiment, the H shape is deformed as described above, and the central bridge portion 15a of each rubber lug 15 is formed. This corresponds to a step 16 on the inner peripheral side of the rubber elastic body 11 described later. For this reason, the structure contributes to the reinforcement of the step portion 16 and the provision of spring property from the outer peripheral side of the rubber elastic body 11. Further, a rubber projection 14 having a substantially triangular cross section is provided on the inner peripheral side in the longitudinal direction (vertical direction in FIG. 1) of the rubber elastic body 11 at a constant pitch at the center.
- the inner peripheral surface of the rubber elastic body 11 has a substantially constant height with the rubber projection 14 interposed therebetween, and further has a step 16 formed by an inclined surface in the width direction.
- a flat portion formed with the rubber projection 14 interposed therebetween is referred to as an upper surface 17, and a lateral width side is referred to as a lower surface 18.
- the ratio between the upper step surface 17 and the lower step surface 18 is approximately 1: 2, and the upper step surface 17 is formed with a certain width.
- the rolling wheel 20 provided on the fuselage side has an outer surface 21 formed flat and rolls on the upper step surface 17 (ie, the inner rolling surface 19).
- the left and right end portions 22 are located outside the upper step surface 17 and have a gap with the lower step surface 18.
- the inner circumferential surface of the rubber elastic body is substantially The wheel is restrained. For this reason, there is no particular spring elasticity.
- the lower surface 18 on the inner peripheral side of the rubber roller 10 of the present invention is not restricted by the outer surface 21 of the rolling wheel 20, the spring Elasticity is generated, and effects such as vibration absorption are exhibited.
- the contact area between the inner peripheral rolling surface 19 (the endless upper step surface 17 having a fixed width) and the rolling wheel is determined by the outer surface area of the rolling wheel. 30-70%, preferably 30-50%. Of course, in this range, the durability of the rubber is within a satisfactory range.
- the stone or the like is mainly involved in the portion (lower surface) where the rolling wheel contact pressure is low, and the rubber on the lower surface, which is less likely to be twisted by the stone or the like, is less likely to be damaged.
- the outer surface of the rolling wheel 20 has a width of 124 mm, and the contact area ratio between the outer surface area and the surface area of the upper surface 17 (inner rolling surface 19) of the rubber crawler 10 is changed to change the spring constant (KN / mm )It was measured.
- Experiment 3 has a contact area of 30%
- Experiment 4 has a contact area of 50%
- Experiment 5 has a contact area of 70%.
- Experimental Example 1 has a conventional rubber crawler structure (contact area 100%)
- Experimental Example 2 has a contact area of 20%.
- the rubber crawler was mounted on the left and right sides of a 4 ton actual machine, and the riding ground was tested by a feeling test.
- the results are shown in Table 1 by a 5-point evaluation. The higher the score, the better, and the higher the score, the better.
- Experimental Example 2 was a force test that was excellent in the actual machine test 1 and was extremely poor in durability in the actual machine test 2 and could not be used. In Experimental Example 1, although the durability was excellent, the riding comfort was poor and there was a need for improvement.
- FIG. 5 shows a second embodiment of the present invention.
- the inner peripheral surface of the rubber crawler 10 is formed flat, a step is formed on the outer surface 21 of the rolling wheel 20, and the outer surface 21 a inside the rolling wheel 20 is formed on the inner peripheral surface of the rubber elastic body 11 ( The outer peripheral surface 21b of the outer periphery of the rolling wheel 20 does not contact the inner peripheral rolling surface 19). For this reason, the restraint of the rubber elastic body 11 by the rolling wheel 20 is reduced, thereby providing spring elasticity.
- FIG. 6 shows a third embodiment of the present invention.
- the inner peripheral surface of this rubber crawler 10 is formed flat, but a groove 23 is formed in the center of the outer surface of the rolling wheel 20 to provide rubber elasticity. This is to partially release the restraint on body 11. For this reason, the inner peripheral rolling surface 19 of the rubber elastic body 11 is less constrained by the rolling wheels 20, resulting in spring elasticity.
- the present invention is intended mainly to improve the riding comfort of a coreless rubber crawler and to provide a rubber crawler traveling device capable of withstanding high-speed traveling. It is now applicable to
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/588,089 US8083297B2 (en) | 2004-01-29 | 2005-01-28 | Coreless rubber crawler traveling device |
JP2005517499A JP4763461B2 (ja) | 2004-01-29 | 2005-01-28 | 芯金レスゴムクロ−ラ走行装置 |
EP05704235A EP1712455B1 (en) | 2004-01-29 | 2005-01-28 | Coreless rubber crawler traveling device |
DE602005022273T DE602005022273D1 (de) | 2004-01-29 | 2005-01-28 | Fahrvorrichtung mit kernloser gummiraupe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-020815 | 2004-01-29 | ||
JP2004020815 | 2004-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005073060A1 true WO2005073060A1 (ja) | 2005-08-11 |
Family
ID=34823762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/001183 WO2005073060A1 (ja) | 2004-01-29 | 2005-01-28 | 芯金レスゴムクローラ走行装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8083297B2 (ja) |
EP (1) | EP1712455B1 (ja) |
JP (1) | JP4763461B2 (ja) |
DE (1) | DE602005022273D1 (ja) |
WO (1) | WO2005073060A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010159019A (ja) * | 2009-01-09 | 2010-07-22 | Sumitomo Rubber Ind Ltd | 弾性クローラ |
JP2011046277A (ja) * | 2009-08-27 | 2011-03-10 | Bridgestone Corp | ゴムクローラ |
WO2017017957A1 (ja) * | 2015-07-30 | 2017-02-02 | 株式会社ブリヂストン | 弾性クローラおよび弾性クローラ装置 |
US10618578B2 (en) | 2015-06-05 | 2020-04-14 | Bridgestone Corporation | Crawler |
US10730571B2 (en) | 2015-06-05 | 2020-08-04 | Bridgestone Corporation | Crawler |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101146092B1 (ko) | 2009-12-11 | 2012-05-15 | 한국카모플라스트(주) | 충격흡수 홈을 구성한 고무 크로라 |
US8967737B2 (en) | 2010-06-30 | 2015-03-03 | Camoplast Solideal Inc. | Wheel of a track assembly of a tracked vehicle |
US9334001B2 (en) | 2010-12-14 | 2016-05-10 | Camso Inc. | Drive sprocket, drive lug configuration and track drive arrangement for an endless track vehicle |
US9067631B1 (en) | 2010-12-14 | 2015-06-30 | Camoplast Solideal Inc. | Endless track for traction of a vehicle |
US8985250B1 (en) | 2010-12-14 | 2015-03-24 | Camoplast Solideal Inc. | Track drive mode management system and methods |
US9580121B2 (en) * | 2014-03-13 | 2017-02-28 | Ati, Inc. | Vehicle track assembly having tapered wheels |
WO2016138592A1 (en) | 2015-03-04 | 2016-09-09 | Camso Inc. | Track system for traction of a vehicle |
EP3812249B1 (en) | 2015-06-29 | 2023-10-11 | Camso Inc. | Systems and methods for monitoring a track system for traction of a vehicle |
US11835955B2 (en) | 2017-12-08 | 2023-12-05 | Camso Inc. | Systems and methods for monitoring off-road vehicles |
US20190292750A1 (en) * | 2018-03-23 | 2019-09-26 | Contitech Transportbandsysteme Gmbh | Method for positive drive of endless track for compact track loader and construction equipment |
US11066113B2 (en) * | 2018-05-10 | 2021-07-20 | Contitech Transportbandsysteme Gmbh | Galvanized wire ply for rubber track |
US11518457B2 (en) | 2019-03-20 | 2022-12-06 | Sri, Inc. | Vehicle track |
AU2021249574A1 (en) | 2020-03-31 | 2022-10-13 | Soucy International Inc. | Track and wheel for a track system, and track system comprising the same |
Citations (6)
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JPS6050087U (ja) * | 1983-09-14 | 1985-04-08 | 株式会社クボタ | 作業車のクロ−ラ装置 |
JPH0319785U (ja) * | 1989-07-10 | 1991-02-26 | ||
JP2001146182A (ja) * | 1999-11-19 | 2001-05-29 | Atex Co Ltd | クローラ走行装置 |
JP2002002564A (ja) * | 2000-06-28 | 2002-01-09 | Komatsu Ltd | 履帯走行装置 |
JP2002127955A (ja) * | 2000-10-23 | 2002-05-09 | Komatsu Ltd | ゴム履帯走行装置 |
JP2003252259A (ja) * | 2002-02-27 | 2003-09-10 | Ohtsu Tire & Rubber Co Ltd :The | 弾性クローラ |
Family Cites Families (17)
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FR516584A (fr) * | 1920-06-05 | 1921-04-22 | Adolphe Kegresse | Courroie-chenille souple pour véhicules automobiles et autres |
US2494065A (en) * | 1944-06-29 | 1950-01-10 | Goodrich Co B F | Band power transmission |
JPS5858269B2 (ja) * | 1979-12-19 | 1983-12-24 | 株式会社ブリヂストン | ゴム弾性履帯 |
JPH06306Y2 (ja) * | 1986-11-28 | 1994-01-05 | オ−ツタイヤ株式会社 | クロ−ラ用無端帯 |
JPH0288889U (ja) * | 1988-07-13 | 1990-07-13 | ||
JP2616013B2 (ja) * | 1989-06-15 | 1997-06-04 | 株式会社村田製作所 | マグネットチャック |
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JPH09109950A (ja) * | 1995-10-16 | 1997-04-28 | Morooka:Kk | ゴムクローラ |
JPH11105754A (ja) * | 1997-08-06 | 1999-04-20 | Bridgestone Corp | 耳部切断を防止した芯金及びゴムクロ−ラの構造 |
US6176557B1 (en) * | 1998-01-10 | 2001-01-23 | Bridgestone Corporation | Inner periphery driving type rubber crawler |
BE1012369A3 (nl) | 1998-12-24 | 2000-10-03 | Tweco | Rubberen ketting. |
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JP4688356B2 (ja) * | 2001-07-03 | 2011-05-25 | 住友ゴム工業株式会社 | 弾性クローラ走行装置およびこの弾性クローラ走行装置に用いる履帯用スプロケット |
JP2003335275A (ja) | 2002-05-22 | 2003-11-25 | Fukuyama Rubber Ind Co Ltd | ゴムクローラ |
FR2845344B1 (fr) * | 2002-10-07 | 2005-08-05 | Otico | Chenille a bande souple sans fin avec nappes de renforcement, en particulier pour vehicules tout terrain |
JP3963842B2 (ja) * | 2003-01-10 | 2007-08-22 | 株式会社クボタ | 後部走行装置 |
US7367637B2 (en) * | 2005-06-15 | 2008-05-06 | Torvec, Inc. | Endless track for high speed multi-terrain vehicles |
-
2005
- 2005-01-28 WO PCT/JP2005/001183 patent/WO2005073060A1/ja active Application Filing
- 2005-01-28 JP JP2005517499A patent/JP4763461B2/ja not_active Expired - Fee Related
- 2005-01-28 EP EP05704235A patent/EP1712455B1/en not_active Expired - Fee Related
- 2005-01-28 DE DE602005022273T patent/DE602005022273D1/de active Active
- 2005-01-28 US US10/588,089 patent/US8083297B2/en not_active Expired - Fee Related
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JPS6050087U (ja) * | 1983-09-14 | 1985-04-08 | 株式会社クボタ | 作業車のクロ−ラ装置 |
JPH0319785U (ja) * | 1989-07-10 | 1991-02-26 | ||
JP2001146182A (ja) * | 1999-11-19 | 2001-05-29 | Atex Co Ltd | クローラ走行装置 |
JP2002002564A (ja) * | 2000-06-28 | 2002-01-09 | Komatsu Ltd | 履帯走行装置 |
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Non-Patent Citations (1)
Title |
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See also references of EP1712455A4 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010159019A (ja) * | 2009-01-09 | 2010-07-22 | Sumitomo Rubber Ind Ltd | 弾性クローラ |
JP2011046277A (ja) * | 2009-08-27 | 2011-03-10 | Bridgestone Corp | ゴムクローラ |
US10618578B2 (en) | 2015-06-05 | 2020-04-14 | Bridgestone Corporation | Crawler |
US10730571B2 (en) | 2015-06-05 | 2020-08-04 | Bridgestone Corporation | Crawler |
WO2017017957A1 (ja) * | 2015-07-30 | 2017-02-02 | 株式会社ブリヂストン | 弾性クローラおよび弾性クローラ装置 |
US10435091B2 (en) | 2015-07-30 | 2019-10-08 | Bridgestone Corporation | Elastic crawler and elastic crawler device |
Also Published As
Publication number | Publication date |
---|---|
EP1712455A4 (en) | 2008-03-12 |
JP4763461B2 (ja) | 2011-08-31 |
US20070252433A1 (en) | 2007-11-01 |
US8083297B2 (en) | 2011-12-27 |
JPWO2005073060A1 (ja) | 2007-09-06 |
EP1712455B1 (en) | 2010-07-14 |
DE602005022273D1 (de) | 2010-08-26 |
EP1712455A1 (en) | 2006-10-18 |
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