AU540154B2 – Element for ground contact
– Google Patents
AU540154B2 – Element for ground contact
– Google Patents
Element for ground contact
Info
Publication number
AU540154B2
AU540154B2
AU67062/81A
AU6706281A
AU540154B2
AU 540154 B2
AU540154 B2
AU 540154B2
AU 67062/81 A
AU67062/81 A
AU 67062/81A
AU 6706281 A
AU6706281 A
AU 6706281A
AU 540154 B2
AU540154 B2
AU 540154B2
Authority
AU
Australia
Prior art keywords
elements
contact
band
plate
ground
Prior art date
1980-01-11
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.)
Ceased
Application number
AU67062/81A
Other versions
AU6706281A
(en
Inventor
H. Pettersson
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.)
Gislaved AB
Original Assignee
Gislaved 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.)
1980-01-11
Filing date
1980-12-29
Publication date
1984-11-01
1980-12-29
Application filed by Gislaved AB
filed
Critical
Gislaved AB
1981-08-07
Publication of AU6706281A
publication
Critical
patent/AU6706281A/en
1984-11-01
Application granted
granted
Critical
1984-11-01
Publication of AU540154B2
publication
Critical
patent/AU540154B2/en
2000-12-29
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
239000013013
elastic material
Substances
0.000
claims
description
3
239000002861
polymer material
Substances
0.000
claims
1
238000010276
construction
Methods
0.000
description
3
239000000463
material
Substances
0.000
description
3
229910000831
Steel
Inorganic materials
0.000
description
1
230000015572
biosynthetic process
Effects
0.000
description
1
230000000694
effects
Effects
0.000
description
1
238000005755
formation reaction
Methods
0.000
description
1
238000012423
maintenance
Methods
0.000
description
1
238000000034
method
Methods
0.000
description
1
239000007779
soft material
Substances
0.000
description
1
239000010959
steel
Substances
0.000
description
1
230000032258
transport
Effects
0.000
description
1
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
B62D55/18—Tracks
B62D55/20—Tracks of articulated type, e.g. chains
B—PERFORMING OPERATIONS; TRANSPORTING
B60—VEHICLES IN GENERAL
B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
B60C27/16—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables formed of close material, e.g. leather or synthetic mats
Description
ELEMENT FOR GROUND CONTACT
The present invention relates to a new type of ground-engaging contact-element for endless-track vehicles. It is a known technique to improve the contact between a vehicle and the ground, on which it moves by providing the vehicle with bands or chains. Especially those vehicles being used in forestry, agriculture, military and other activities requiring cross-country ride, have been constructed with such bands or chains. Certain vehicles are constructed in such a way that they always are driven with bands, whereas others are provided with rubber-wheels, which – when necessary – can be equipped with bands, whereby the rubber-wheels are working inside the loop of the band. The band consists usually of two longitudinal drag-elements, as for instance drawing-chains or similar elements, between which a number of transversally flexibly fitted elements of steel or similar material run, giving ground-contact between vehicle and ground.
A factor – very essential when using bands on cross-country vehicles – is that the band must not damage the ground, either by cross-country rides, for instance when thinning forest, whereby roots from remaining and growing forest may not be damaged, or
during transports on asphalted roads when the road surface may not be damaged.
The contact-elements are in all known constructions inflexible in the driving direction of the vehicle. In order to function as band plates in driving-band for cross-country vehicles they have therefore been formed relatively short in the driving direction and flexibly connected as stiff links in the drawing-element. With such relatively short contact-elements, the ground-pressure will be concentrated to a relatively small surface, whereby ground-damages easily can arise.
It has been attempted to solve this problem by placing pressure equalizing units of elastic material between the stiff contact- elements. It is also known to let band-loops of plastic or rubber create the contact between vehicle and under-layer. Such continuous band-loops are known for instance as band for snow-vehicles and light band-waggons.
Contrary to all earlier constructions of elements for ground-contact, the present invention offers elements flexible as well in the driving direction as in the transverse direction. By building up the elements of flexible material they cannot only be bent in relation to each other, like previously known band-plates, but they can also be bent within the elements themselves. In this way each element can be made relatively long and thus offer a larger unbroken bearing-surface. In those cases, where the contact-elements are included in constructions with longitudinal chain-loops, each of these flexible elements can be applied on several between themselves flexibly connected links in the longitudinal chain-loops. Previously known stiff elements can as mentioned above – of geometrical reasons only be fastened with one link in each connected chain.
The invention, the special characteristics of which appear in the patent claims, is best illustrated with reference to enclosed drawings.
Figs. 1, 1a and 1b show embodiments of an element for ground contact (band-plate) in level view.
Figs. 2, 2a and 2b show embodiments of a band-plate seen in the driving direction.
Between two parallel running drawing-elements, on the drawing marked only with the dotted line 3, band-plates 1 are adjusted. Each of these band-plates 1 is made of elastic material and formed as an X in the shown model. The corners 2 of the plate are each connected with a link A in the drag-element. In order to strengthen the plate it can be made with a reinforceιnent, not shown in the figures.
The system made possible by the newly invented contact-element offers advantages towards today’s system, in the first place because the vehicles can be driven on roads and on the ground without damaging the under-layer to an unacceptable extent.
The relatively long contact-elements, made possible owing to the fact that the corners of the elements are fixed to the links of the dragelement so that they follow the curve of the bearing wheels, helps giving the vehicles an even and gentle running in the country as well as on hard roads. Because the contact-surfaces are of a flexible, relatively soft material, the fire-risk, coupled with spark-ignition when steel-elements and stone-material are being rubbed against each other, is avoided. This is today a problem during summertime in the forestry, where great values and human life run a risk by forest-fire.
The new system makes it possible that vehicles provided with rubber- tires can temporarily be equipped with band without taking off the tires. The system can thus be utilized not only for special band- vehicles.
Out of maintenance view the new band-system implies an advantage in comparison with vehicle-bands formed as a whole plastic or rubber- band. The consumer gains economic advantages by the fact that damaged elements can be changed without rejecting or even dismounting the whole band.
The invention is not limited to the embodiment shown on the drawings
but can vary within the limits of the following patent claims. Evidently the band-plate does not need to have the X-form shown on the drawing but can have a number. of formations, i.e. different types of polygons maybe. The essential thing is that the corners of the plates are each connected with separate links in the drag- elements.
Claims (3)
Patent Claims
1. A ground-engaging contact element for endless-track vehicles, said tracks comprising two separate drawing-elements (3) that run in parallel over wheels, a number of said contact-elements (1) being arranged between the drawing-elements (3) to connect them with each other, c h a r a c t e r i z e d i n that it consists of a polygonal plate (1) of elastic material, said plate (1) being flexible as well in the driving direction as in the transverse direction, the corners of said plate (1) being detachably connected with the drawing- elements (3) and in that the length of the plate (1) in the driving direction at least corresponds to the distance between the end-points of two links (4) in the chains that form the drawing-elements (3).
2. A contact-element according to claim 1, c h a r a c t e r i z e d i n that it on at least one side is connected with at least two, articulately connected links (4) in the chains.
3. A contact-element according to claim 1 or 2, c h a r a c t e r i z e d i n that it is made of polymer-material.
AU67062/81A
1980-01-11
1980-12-29
Element for ground contact
Ceased
AU540154B2
(en)
Applications Claiming Priority (3)
Application Number
Priority Date
Filing Date
Title
SE8000257A
SE441082B
(en)
1980-01-11
1980-01-11
CONTACT ITEMS PROVIDED FOR DRIVE TAPE WINDOWS FOR TIRE DRIVES, CLEANING VEHICLES
SE8000257
1980-01-11
PCT/SE1980/000353
WO1981001988A1
(en)
1980-01-11
1980-12-29
Element for ground contact
Publications (2)
Publication Number
Publication Date
AU6706281A
AU6706281A
(en)
1981-08-07
AU540154B2
true
AU540154B2
(en)
1984-11-01
Family
ID=20339961
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU67062/81A
Ceased
AU540154B2
(en)
1980-01-11
1980-12-29
Element for ground contact
Country Status (15)
Country
Link
US
(1)
US4438982A
(en)
JP
(2)
JPS56501876A
(en)
AT
(1)
AT383787B
(en)
AU
(1)
AU540154B2
(en)
CA
(1)
CA1164916A
(en)
CH
(1)
CH656359A5
(en)
DE
(1)
DE3050205T1
(en)
DK
(1)
DK148158C
(en)
FI
(1)
FI820329L
(en)
FR
(1)
FR2473456A1
(en)
GB
(1)
GB2089301B
(en)
NL
(1)
NL8020489A
(en)
NO
(1)
NO813072L
(en)
SE
(1)
SE441082B
(en)
WO
(1)
WO1981001988A1
(en)
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
SE444800B
(en)
*
1982-05-12
1986-05-12
Wadell Patent Ab
DRIVE TIRE DEVICE
DE3927443A1
(en)
*
1989-08-16
1991-02-21
Ernst Schirm Gmbh
Disposing of dangerous waste prods. – by dumping after mixing with thermoplastic or similar material to prevent e.g. release of dangerous particles or other hazards
US6352320B1
(en)
2000-06-19
2002-03-05
The Goodyear Tire & Rubber Company
Directional annular elastic track
US20050236898A1
(en)
*
2004-04-26
2005-10-27
Gunter Herbert D
Protective chain for endless drive-belts
WO2005105556A1
(en)
*
2004-04-26
2005-11-10
Gunter Herbert D
Protective chain for endless drive-belts
US20140367014A1
(en)
*
2013-06-17
2014-12-18
Xianglin LIAN
Motor vehicle anti-skid crawler
Family Cites Families (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1783161A
(en)
*
1922-06-05
1930-11-25
Us Chain & Forging Company
Traction device for tires
US1824545A
(en)
*
1926-07-16
1931-09-22
Chain Products Company
Tread member connection for antiskid devices
US1805037A
(en)
*
1928-05-24
1931-05-12
Goodyear Tire & Rubber
Tractive device for tires
AT185258B
(en)
*
1954-07-09
1956-04-10
Josef Theiszenberger
Anti-skid device for motor vehicles
US3136378A
(en)
*
1961-07-25
1964-06-09
Robert W Patee
Snow vehicle
DE1505007B2
(en)
*
1965-02-11
1976-07-22
Eisen- Und Drahtwerk Erlau Ag, 7080 Aalen
SLIDING PROTECTION OR PROTECTIVE TIRE CHAIN FOR TIRE OF A MOTOR VEHICLE’S WHEELS
CA945882A
(en)
*
1971-07-20
1974-04-23
Rolf Pfoertner
Elastomeric traction device
JPS5147928A
(en)
*
1974-10-24
1976-04-24
Nippon Oil Co Ltd
NETSUYOJUSEISETSUCHAKUZAISOSEIBUTSU
JPS5313703A
(en)
*
1976-07-23
1978-02-07
Yoichi Okamura
Automotive tire antiskid unit
CH625750A5
(en)
*
1977-11-21
1981-10-15
Bourcier Carbon Previnquieres
SE409101B
(en)
*
1978-07-18
1979-07-30
Wadell Patent Ab
BAND PLATE
1980
1980-01-11
SE
SE8000257A
patent/SE441082B/en
not_active
IP Right Cessation
1980-12-29
JP
JP50042081A
patent/JPS56501876A/ja
active
Pending
1980-12-29
AU
AU67062/81A
patent/AU540154B2/en
not_active
Ceased
1980-12-29
US
US06/302,417
patent/US4438982A/en
not_active
Expired – Fee Related
1980-12-29
GB
GB8202346A
patent/GB2089301B/en
not_active
Expired
1980-12-29
AT
AT0914980A
patent/AT383787B/en
not_active
IP Right Cessation
1980-12-29
DE
DE803050205T
patent/DE3050205T1/en
active
Granted
1980-12-29
WO
PCT/SE1980/000353
patent/WO1981001988A1/en
active
Application Filing
1980-12-29
CH
CH5934/81A
patent/CH656359A5/en
not_active
IP Right Cessation
1980-12-29
NL
NL8020489A
patent/NL8020489A/nl
unknown
1981
1981-01-08
CA
CA000368131A
patent/CA1164916A/en
not_active
Expired
1981-01-09
FR
FR8100271A
patent/FR2473456A1/en
active
Granted
1981-09-09
NO
NO813072A
patent/NO813072L/en
unknown
1981-09-10
DK
DK402281A
patent/DK148158C/en
not_active
IP Right Cessation
1982
1982-02-02
FI
FI820329A
patent/FI820329L/en
not_active
Application Discontinuation
1988
1988-01-18
JP
JP1988004589U
patent/JPS63131878U/ja
active
Pending
Also Published As
Publication number
Publication date
DE3050205T1
(en)
1982-09-09
SE441082B
(en)
1985-09-09
CA1164916A
(en)
1984-04-03
FR2473456B3
(en)
1982-09-17
US4438982A
(en)
1984-03-27
GB2089301A
(en)
1982-06-23
JPS63131878U
(en)
1988-08-29
DK402281A
(en)
1981-09-10
SE8000257L
(en)
1981-07-12
AU6706281A
(en)
1981-08-07
JPS56501876A
(en)
1981-12-24
CH656359A5
(en)
1986-06-30
WO1981001988A1
(en)
1981-07-23
AT383787B
(en)
1987-08-25
NL8020489A
(en)
1982-05-03
FI820329L
(en)
1982-02-02
FR2473456A1
(en)
1981-07-17
NO813072L
(en)
1981-09-09
DK148158B
(en)
1985-03-25
DE3050205C2
(en)
1990-09-27
DK148158C
(en)
1986-03-03
ATA914980A
(en)
1987-01-15
GB2089301B
(en)
1983-12-14
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