CA2412425A1 - Track with low friction reinforced guide blocks - Google Patents
Track with low friction reinforced guide blocks Download PDFInfo
- Publication number
- CA2412425A1 CA2412425A1 CA 2412425 CA2412425A CA2412425A1 CA 2412425 A1 CA2412425 A1 CA 2412425A1 CA 2412425 CA2412425 CA 2412425 CA 2412425 A CA2412425 A CA 2412425A CA 2412425 A1 CA2412425 A1 CA 2412425A1
- Authority
- CA
- Canada
- Prior art keywords
- track
- guide blocks
- low friction
- series
- rollers
- 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.)
- Abandoned
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
- B62D55/18—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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The endless track of a track-propelled vehicle has an inner face provided with a series of longitudinally spaced guide blocks; the guide blocks have, on an opposite side faces thereof, pads made of low friction resin material to contact the mid rollers of the track assembly.
Description
TITLE OF THE INVENTION
Track with low friction reinforced guide blocks.
FIELD OF THE INVENTION
The present invention pertains to an endless track for track-propelled vehicles wherein guide blocks formed on the inner surface of the track are provided with a reinforcing material.
BACKGROUND OF THE INVENTION
Track-type vehicles have track assembly that normally includes an endless rubber belt which wraps around a drive wheel, an idler wheel and a number of rollers, called mid-rollers. The inner surface of the endless belt has a number of upstanding guide blocks which are guided through a channel formed by the wheel arrangement of the track assembly.
During use of the vehicle, the drive wheel rotates and engages the endless belt thereby causing the belt to rotate around the path defined by the drive wheel, idler wheel and mid-rollers. Rotation of the endless belt causes each of the guide blocks to pass through a channel defined by the drive wheel, idler wheel and each of the mid-rollers. Having the guide blocks passing through the guiding channel enables the belt to remain within the rolling path. The contact between the guide blocks passing next to the drive wheel, idler and each of the mid-roNers is a source of wear on these components. Friction between the guide blocks and the guiding wheels generates heat which accelerates deterioration of the guide blocks and the mid-rollers.
STATEMENT OF THE INVENTION
It is an object of the present invention to provide a track wherein friction is minimized and heat generation is reduced between the mid rollers and the guide blocks by using a low friction material on the guide blocks.
Track with low friction reinforced guide blocks.
FIELD OF THE INVENTION
The present invention pertains to an endless track for track-propelled vehicles wherein guide blocks formed on the inner surface of the track are provided with a reinforcing material.
BACKGROUND OF THE INVENTION
Track-type vehicles have track assembly that normally includes an endless rubber belt which wraps around a drive wheel, an idler wheel and a number of rollers, called mid-rollers. The inner surface of the endless belt has a number of upstanding guide blocks which are guided through a channel formed by the wheel arrangement of the track assembly.
During use of the vehicle, the drive wheel rotates and engages the endless belt thereby causing the belt to rotate around the path defined by the drive wheel, idler wheel and mid-rollers. Rotation of the endless belt causes each of the guide blocks to pass through a channel defined by the drive wheel, idler wheel and each of the mid-rollers. Having the guide blocks passing through the guiding channel enables the belt to remain within the rolling path. The contact between the guide blocks passing next to the drive wheel, idler and each of the mid-roNers is a source of wear on these components. Friction between the guide blocks and the guiding wheels generates heat which accelerates deterioration of the guide blocks and the mid-rollers.
STATEMENT OF THE INVENTION
It is an object of the present invention to provide a track wherein friction is minimized and heat generation is reduced between the mid rollers and the guide blocks by using a low friction material on the guide blocks.
It is a further object of the present invention to provide a low friction surface on at least a portion of the rubber guide block which contacts the wheel thus preventing the wheel from being removed from the track and to prevent the guide block from being worn or damaged by the wheel.
This is achieved by providing a low friction properties resin to the member which is exposed to the contacting of the drive wheel, idler wheel and mid-rollers.
During the belt molding process, a low friction material pad is embodied to the guide block opposite edges. By using a low friction material pad which has similar molding characteristics of rubber, at a given pressure and molding temperature, molecular reaction occurs between the low friction material pad and the based rubber compound. This provides the low friction material pads with adequate adhesion to properly stay in place, along the guide block edges, without any additional mechanical or bonding agent.
The present invention therefore relates to an endless track for track propelled vehicles having a track assembly including a drive wheel, an idler wheel and a series of rollers resting on a lower run of the track comprising: a body of elastomeric material having an inner surface and an outer surface; the inner surface displaying thereon a series of longitudinally spaced guide blocks; the guide blocks having a front face, a rear face and opposite side faces; the opposite faces being formed of pads made of low friction resin material.
Other objects and further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. It should be understood, however, that this detailed description, while indicating preferred embodiments of the invention, is given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.
This is achieved by providing a low friction properties resin to the member which is exposed to the contacting of the drive wheel, idler wheel and mid-rollers.
During the belt molding process, a low friction material pad is embodied to the guide block opposite edges. By using a low friction material pad which has similar molding characteristics of rubber, at a given pressure and molding temperature, molecular reaction occurs between the low friction material pad and the based rubber compound. This provides the low friction material pads with adequate adhesion to properly stay in place, along the guide block edges, without any additional mechanical or bonding agent.
The present invention therefore relates to an endless track for track propelled vehicles having a track assembly including a drive wheel, an idler wheel and a series of rollers resting on a lower run of the track comprising: a body of elastomeric material having an inner surface and an outer surface; the inner surface displaying thereon a series of longitudinally spaced guide blocks; the guide blocks having a front face, a rear face and opposite side faces; the opposite faces being formed of pads made of low friction resin material.
Other objects and further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. It should be understood, however, that this detailed description, while indicating preferred embodiments of the invention, is given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.
BRIEF DESGRIPTION OF THE DRAWING
Figure 1 is a perspective view of a guide block for an endless track made in accordance with the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
Referring to the drawing, there is shown the inner face 10 of a segment of an endless track which is provided, in its center, with a series of longitudinally spaced guide blocks 12, each having a front face 14, a rear face 16 and opposite side faces 18 and 20.
The present invention is concerned with providing a guide block on each opposite side face thereof with a heat resistant thermoplastic or thermosetting member having low friction properties, each side face being exposed to the side surfaces of the track rollers.
Although the invention has been described above with respect to one specific form, it will be evident to a person skilled in the art that it may be modified and refined in various ways. It is therefore wished to have it understood that the present invention should not be limited in scope, except by the terms of the following claims.
Figure 1 is a perspective view of a guide block for an endless track made in accordance with the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
Referring to the drawing, there is shown the inner face 10 of a segment of an endless track which is provided, in its center, with a series of longitudinally spaced guide blocks 12, each having a front face 14, a rear face 16 and opposite side faces 18 and 20.
The present invention is concerned with providing a guide block on each opposite side face thereof with a heat resistant thermoplastic or thermosetting member having low friction properties, each side face being exposed to the side surfaces of the track rollers.
Although the invention has been described above with respect to one specific form, it will be evident to a person skilled in the art that it may be modified and refined in various ways. It is therefore wished to have it understood that the present invention should not be limited in scope, except by the terms of the following claims.
Claims (3)
1. An endless track for track-propelled vehicles having a track assembly including a drive wheel, an idler wheel and a series of rollers resting on a lower run of the track comprising: a body of elastomeric material having an inner surface and an outer surface; said inner surface displaying thereon a series of longitudinally spaced guide blocks; said guide blocks having a front face, a rear face and opposite side faces; said opposite faces being formed of pads made of low friction resin material.
2. An endless track as defined in claim 1, wherein said pads are integrally molded to said elastomeric material forming said guide blocks.
3. An endless track as defined in claim 1 and 2, wherein said resin material is UHMW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2412425 CA2412425A1 (en) | 2002-11-20 | 2002-11-20 | Track with low friction reinforced guide blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2412425 CA2412425A1 (en) | 2002-11-20 | 2002-11-20 | Track with low friction reinforced guide blocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2412425A1 true CA2412425A1 (en) | 2004-05-20 |
Family
ID=32476949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2412425 Abandoned CA2412425A1 (en) | 2002-11-20 | 2002-11-20 | Track with low friction reinforced guide blocks |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2412425A1 (en) |
-
2002
- 2002-11-20 CA CA 2412425 patent/CA2412425A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |