CA2511866A1 - Traction chain assembly for an endless traction band and method for installing same - Google Patents
Traction chain assembly for an endless traction band and method for installing same Download PDFInfo
- Publication number
- CA2511866A1 CA2511866A1 CA 2511866 CA2511866A CA2511866A1 CA 2511866 A1 CA2511866 A1 CA 2511866A1 CA 2511866 CA2511866 CA 2511866 CA 2511866 A CA2511866 A CA 2511866A CA 2511866 A1 CA2511866 A1 CA 2511866A1
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- Prior art keywords
- traction
- band
- chain
- laterally extending
- chains
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Classifications
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- 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
-
- 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
- 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
- B62D55/26—Ground engaging parts or elements
- B62D55/28—Ground engaging parts or elements detachable
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- 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 traction chain assembly for an endless traction band is provided. The traction chain assembly comprises two attachments brackets fixedly mounted on both sides of the traction band. Two laterally extending chains are attached to the attachment brackets.
The chains are further linked together by a plurality of traction enhancing chain devices.
The chain links of the traction enhancing chain devices are equipped with outwardly projecting grousers. A method to install the traction chain is also provided.
The chains are further linked together by a plurality of traction enhancing chain devices.
The chain links of the traction enhancing chain devices are equipped with outwardly projecting grousers. A method to install the traction chain is also provided.
Description
Title of the Invention Traction chain assembly for an endless traction band and method for installing same.
Field on the Invention This invention relates to traction chains for a vehicle. More particularly, the present invention relates to a traction chain assembly to be used on endless track and to a method to install the assembly on an endless track.
Background of the Invention Numerous types of vehicles are frequently used in terrain in which it is difficult for pneumatic tires to operate. Both military vehicles, such as tanks and amphibious vehicles, and civilian vehicles, such as tractors and recreational vehicles, are sometime utilized on terrains which are very soft, for example sand surfaces. Pneumatic tires are not capable of efficient operation on such soft surfaces, as they tend to burrow into the surface, rather than riding across the surface.
Endless track vehicles have been developed for use on terrains in which pneumatic-tired vehicles are impractical. See for example U.S. Patents 3,361,488 (Ohrn et al), 3,688,858 (Jespersen), 3,734,577 (Snellman) and 3,955,855 (Massieon et al). In many types of terrain these vehicles provide improved performance relative to the performance of pneumatic-tired vehicles; still, difficulties are encountered with existing endless track vehicles.
Originally, such tracks were made of a plurality of metal links or shoes pivotally attached to each other to form an endless track which are very heavy, cause serious damage to roads and other surfaces on which they run and result in an uncomfortable ride for the passengers. See for example U.S. Patents 2,823,082 (Bauer) and 4,530,546 (Meisel, Jr.).
Heavier vehicles still use metal tracks.
The above-referenced conventional tracks have the disadvantages of being noisy and vibration prone, not sufficiently durable and/or not usable on road surfaces.
This is because of the conventional configurations and use of metal parts.
Accordingly, substantial efforts have been made to construct quieter, smoother operating and more durable tracks for tracked vehicles.
A need has developed for a form of vehicle appropriate for both normal highway use and off road use over snow-covered, very uneven, or muddy terrain. There is significant need for such a vehicle not only during armed conflicts but also following natural emergencies (snow and wind storms, floods, etc.), and such vehicles are at present particularly needed in developing countries. Unfortunately, almost all available automotive vehicles require infrastructure (paved highways, bridges, etc.) for practical operation, and the developing countries are decades away from having the necessary infrastructure for such conventional vehicles. Further, most load-carrying off-road vehicles presently in use have either very large wheels or very cumbersome tracks which are heavy, stow moving, and inappropriate for use on paved roads at normal highway speeds.
Rubber endless tracks have become popular due to an increase in construction in urban areas where vehicles having tracks must drive on the pavement and because there is a demand for tow soil compaction farming. With the combination of rubber technology and a tremendous amount of trial and error, various types of rubber tracks are now available in the industry. They are used on excavators, dump carriers, boring machines, combines, tractors, and the like See for example U.S. Patents 5,279,378 (Graiwey & al) and 6,267,458 (Hansen et al). Most of them operate on the job site only and are transported between sites by trucks or trailers. To eliminate the inconvenience of transporting the vehicle between job sites, a vehicle which can operate both on public roads at normal speeds and in off-road construction environments is required. However, such a vehicle will have to be constructed so as to provide little damage to the pavement, include less vibration and noise, and operate with less maintenance and lubrication.
Furthermore, vibrations to be transmitted to occupants are mitigated and paved roads are not significantly damaged.
A number of hybrid tracks have been proposed where the links or shoes are made of metal which is provided with a rubber cover or insert. See for example U.S.
Patents 2,359,586 (Sayler), 2,369,130 (Benson), 2,409,502 (Leguillon et al), 3,148,921 (Batur et al), 4,109,971 (Black et al), 4,359,248 (Kortering) and 4,588,233 (DenBesten).
[NOTE: As used herein, the term "rubber" relates to any elastic and primarily non-metallic materials such as rubber, elastomers, or combinations thereof used in the manufacture of endless tracks].
Most rubber tracks are formed around a basic carcass or belt. The carcass includes an endless belt-shaped rubber-like elastic member, a number of core bars (usually of metal) embedded therein and aligned in the longitudinal direction thereof and extending in traverse directions thereof, and steel cords (tension-resistant members) embedded in the endless elastic member to surround the core bars circumferentially outwardly.
See for example U.S. Patents 4,904,030 (Ono), 5,295,741 (Togashi et al), 5,511,869 (Edwards et al) and 6,241,327 (Gleasman).
Some have suggested the construction of endless rubber tracks using a plurality of interconnected polymeric modules. See for example U.S. Patents 4,861,120 (Edwards et al) 5,005,922 (Edwards et al).
Terrain-contacting lugs are formed integral with the exterior surface of this basic belt element. Known rubber tracks include large lugs having a variety of well-known orientations, e.g., formed generally perpendicular to the track axis, or at an angle to the track axis, or in a chevron or modified-chevron design. These latter special tracks also include interior lugs or horns for maintaining the track in alignment as it travels over the circumferences of the rubber-tired wheels, such lugs being located either in the centre of the interior surface of the track (for designs appropriate for fitting between the tires of dual-wheels) or in two aligned rows near the outside edges of the track (for receiving a single tire there between). See for example U.S. Patent 5,447,365 (Muramatsu &
al) and 5,540,489 (Muramatsu & al).
The tracks are carried by a plurality of rotating elements (wheels, sprockets, etc...) mounted on the track-laying vehicle, the tracks being maintained in circumferential contact with these rotating elements and being driven thereby (or, in the case of trailer-like non-driven vehicles, being supported for rotation thereon).
However, the advent of rubber track in the field of military and other heavy vehicles has created another problem. Metallic tracks of the prior art had many disadvantages that rubber tracks have solved such as damage to paved roads and noise. Metallic tracks had however the advantage to have a better grip on icy and other flat and slippery surfaces.
Indeed, the metallic cleats of these metallic tracks could "eat" into the ice in order to move. Rubber tracks don't have cleats and their ground-engaging lugs cannot "eat" into ice and thus, present some difficulties when driven on icy surfaces.
Hence, there is a need for a device that can improve the traction of endless rubber tracks especially when the vehicle is traveling on icy surfaces. Such a device should be easily and rapidly installed and removed from the rubber track.
Obiect of the Invention There is therefore a need for a traction chain that can be installed on an endless rubber track to improve its traction capability.
Other and further objects and advantages of the present invention will be obvious upon an understanding of the illustrative embodiments about to be described or will be indicated in the appended claims, and various advantages not referred to herein will occur to one skilled in the art upon employment of the invention in practice.
Summary of the Invention To attain these and other objects which will become more apparent as the description proceeds according to one aspect of the present invention, there is provided a traction chain assembly for an endless traction band.
The traction chain assembly of the present invention is designed to be installed on the outer ground-engaging surface of an endless rubber traction band having an outer surface and an inner surface. The traction chain assembly is used to improved the traction of a tracked vehicle when the driving conditions are such that the friction between the track and the ground is too low.
The traction chain assembly preferably comprises at least two laterally extending parallel chains, cables or the like. These chains are removably attached on both sides of the track using attaching brackets and screws, bolts and nuts or the like.
The two chains are also linked together via different types of traction enhancing chain devices.
A first type of traction enhancing chain device is a traction enhancing chain, extending between both parallel chains. The particularity of these chains is that their links comprises outwardly projecting grousers. These grousers help improve the traction of the endless track.
A second type of traction enhancing chain comprises a large, preferably central, traction ring, preferably in the form of a circle. Other shapes could also be used. The traction ring also comprises a plurality of outwardly projecting grousers. 'The traction ring preferably sits on the top of a ground engaging lug of the outer surface of the traction band. The traction ring is connected to both parallel chains via at least two, but preferably four, chain segments. The links of these chain segments may also comprise grousers.
Preferably, a plurality of these traction chain assemblies are installed on the traction band to improve its traction capability.
Other aspects and many of the attendant advantages will be more readily appreciated as the same becomes better understood by reference to the following detailed description and considered in connection with the accompanying drawings in which like reference symbols designate like elements throughout the figures.
Descriution of the Drawings For a fuller understanding of the nature and object of the invention, reference should be had to the following detailed description taken in connection with the accompanying drawings in which:
Figure 1 is an isometric view of the traction chain assembly as installed on an endless track.
Figure 2 is a side view of the traction chain assembly as installed on an endless track.
Figure 3 is an close-up isometric view of the traction ring of the traction chain assembly.
Description of a Preferred Embodiment '30 Refernng to Figs. 1-3, the traction chain assembly 20 of the present invention is to be installed on an endless traction band 10. The traction band 10 comprises an inner surface 11 and an outer surface 12. The inner surface 11 comprises a plurality of guide lugs 13 to drivingly engage a sprocket wheel (not shown). The outer surface 12 comprises a plurality of ground-engaging traction lugs 14 made of rubber. The pattern of the ground-engaging lugs 14 may be chosen to fit any particular terrain or use of the tracked vehicle.
The traction chain assembly 20 comprises two, parallel and laterally extending chains 21.
Each chain 21 is composed of a plurality of chain links 22. These chain links 22 are ordinary links known in the art. Chains 21 are removably attached to the traction band 10 via attachment brackets 23 and screws 24. The brackets 23 are screwed or otherwise attached to the side of guide lugs 13 as to not hinder to good functioning of the traction band 10. The brackets 23 comprise a pair of hooks 25 to attach the chains 21 to the brackets 23.
The two parallel chains 21 are linked together by traction enhancing chain devices 30 and 40.
Traction enhancing chain device 30 is made of a chain segment 31. The chain segment 31 comprises a plurality of chain links 32. The number of chain links 32 is chosen depending on the size of the traction chain assembly 20, the size of the endless track 10 and the size of each link 32. The number of chain links 32 is a design choice.
Each link 32 is an oval-shaped link which further comprises at least one outwardly projecting grouser 33. Grouser 33 improves the traction of the endless track 10.
Traction enhancing chain device 40 is more complex than traction enhancing chain device 30. Referring particularly to Figs. 1 and 3, traction enhancing chain device 40 comprises a central traction ring 41. Traction ring 41 comprises a plurality of outwardly projecting grousers 42. Grousers 42 act like grousers 33 and improve the traction of the traction band 10. The size and shape of grousers 42 (and 33) are chosen to best fit the surface onto which the grousers 42 and 33 will be used. Thus, other sizes and shapes are possible without departing from the scope of the invention. Also, even if in the preferred embodiment, the traction ring 41 has the shape of a ring, other shapes like polygonal and oval shapes are possible. Traction ring 41 is attached to both chains 21 via at least two chain segments 43. Chain segments 43 comprises a plurality of chain links 44.
Even though they are not shown in Figs. 1-3, chain links 44 can comprise outwardly projecting grousers.
As shown in Figs. 1 and 3, traction enhancing chain devices 30 and 40 are preferably mounted over ground-engaging lugs 14 as to further improve the traction of the endless track 10.
Furthermore, even though the embodiment of Fig. 1 comprises only two traction enhancing chain devices 30 and two traction enhancing chain devices 40, it is to be understood that the embodiment of Fig. 1 is by no means limitative in nature and that the number, placement and design of the traction enhancing chain devices 30 and 40 may vary according to the size and design of the endless track 10 and also according to the intended surface of use of the endless track 10. Thus, other designs, shapes and configurations are possible without departing from the scope of the invention.
Since traction chain assembly 20 is to sustain repeated impacts, traction chain assembly 20 is preferably made of high-strength metal such as stainless steel, heat treated steel, forged steel or other shock-resistant alloys.
To install the traction chain assembly 20 on the endless track 10, the user must first align the first attachment bracket 23 with a first guide lug 13 and then screw the bracket into the first guide lug 23 with a first screw 24. Then, the user aligns the second attachment bracket 23 with a second guide lug 13, located on the opposite side of the endless track 10 and then screws the second bracket 23 in the second lug with a second screw 24. The traction chain assembly 20 must preferably be fully assembled prior to being installed on an endless track 10.
Field on the Invention This invention relates to traction chains for a vehicle. More particularly, the present invention relates to a traction chain assembly to be used on endless track and to a method to install the assembly on an endless track.
Background of the Invention Numerous types of vehicles are frequently used in terrain in which it is difficult for pneumatic tires to operate. Both military vehicles, such as tanks and amphibious vehicles, and civilian vehicles, such as tractors and recreational vehicles, are sometime utilized on terrains which are very soft, for example sand surfaces. Pneumatic tires are not capable of efficient operation on such soft surfaces, as they tend to burrow into the surface, rather than riding across the surface.
Endless track vehicles have been developed for use on terrains in which pneumatic-tired vehicles are impractical. See for example U.S. Patents 3,361,488 (Ohrn et al), 3,688,858 (Jespersen), 3,734,577 (Snellman) and 3,955,855 (Massieon et al). In many types of terrain these vehicles provide improved performance relative to the performance of pneumatic-tired vehicles; still, difficulties are encountered with existing endless track vehicles.
Originally, such tracks were made of a plurality of metal links or shoes pivotally attached to each other to form an endless track which are very heavy, cause serious damage to roads and other surfaces on which they run and result in an uncomfortable ride for the passengers. See for example U.S. Patents 2,823,082 (Bauer) and 4,530,546 (Meisel, Jr.).
Heavier vehicles still use metal tracks.
The above-referenced conventional tracks have the disadvantages of being noisy and vibration prone, not sufficiently durable and/or not usable on road surfaces.
This is because of the conventional configurations and use of metal parts.
Accordingly, substantial efforts have been made to construct quieter, smoother operating and more durable tracks for tracked vehicles.
A need has developed for a form of vehicle appropriate for both normal highway use and off road use over snow-covered, very uneven, or muddy terrain. There is significant need for such a vehicle not only during armed conflicts but also following natural emergencies (snow and wind storms, floods, etc.), and such vehicles are at present particularly needed in developing countries. Unfortunately, almost all available automotive vehicles require infrastructure (paved highways, bridges, etc.) for practical operation, and the developing countries are decades away from having the necessary infrastructure for such conventional vehicles. Further, most load-carrying off-road vehicles presently in use have either very large wheels or very cumbersome tracks which are heavy, stow moving, and inappropriate for use on paved roads at normal highway speeds.
Rubber endless tracks have become popular due to an increase in construction in urban areas where vehicles having tracks must drive on the pavement and because there is a demand for tow soil compaction farming. With the combination of rubber technology and a tremendous amount of trial and error, various types of rubber tracks are now available in the industry. They are used on excavators, dump carriers, boring machines, combines, tractors, and the like See for example U.S. Patents 5,279,378 (Graiwey & al) and 6,267,458 (Hansen et al). Most of them operate on the job site only and are transported between sites by trucks or trailers. To eliminate the inconvenience of transporting the vehicle between job sites, a vehicle which can operate both on public roads at normal speeds and in off-road construction environments is required. However, such a vehicle will have to be constructed so as to provide little damage to the pavement, include less vibration and noise, and operate with less maintenance and lubrication.
Furthermore, vibrations to be transmitted to occupants are mitigated and paved roads are not significantly damaged.
A number of hybrid tracks have been proposed where the links or shoes are made of metal which is provided with a rubber cover or insert. See for example U.S.
Patents 2,359,586 (Sayler), 2,369,130 (Benson), 2,409,502 (Leguillon et al), 3,148,921 (Batur et al), 4,109,971 (Black et al), 4,359,248 (Kortering) and 4,588,233 (DenBesten).
[NOTE: As used herein, the term "rubber" relates to any elastic and primarily non-metallic materials such as rubber, elastomers, or combinations thereof used in the manufacture of endless tracks].
Most rubber tracks are formed around a basic carcass or belt. The carcass includes an endless belt-shaped rubber-like elastic member, a number of core bars (usually of metal) embedded therein and aligned in the longitudinal direction thereof and extending in traverse directions thereof, and steel cords (tension-resistant members) embedded in the endless elastic member to surround the core bars circumferentially outwardly.
See for example U.S. Patents 4,904,030 (Ono), 5,295,741 (Togashi et al), 5,511,869 (Edwards et al) and 6,241,327 (Gleasman).
Some have suggested the construction of endless rubber tracks using a plurality of interconnected polymeric modules. See for example U.S. Patents 4,861,120 (Edwards et al) 5,005,922 (Edwards et al).
Terrain-contacting lugs are formed integral with the exterior surface of this basic belt element. Known rubber tracks include large lugs having a variety of well-known orientations, e.g., formed generally perpendicular to the track axis, or at an angle to the track axis, or in a chevron or modified-chevron design. These latter special tracks also include interior lugs or horns for maintaining the track in alignment as it travels over the circumferences of the rubber-tired wheels, such lugs being located either in the centre of the interior surface of the track (for designs appropriate for fitting between the tires of dual-wheels) or in two aligned rows near the outside edges of the track (for receiving a single tire there between). See for example U.S. Patent 5,447,365 (Muramatsu &
al) and 5,540,489 (Muramatsu & al).
The tracks are carried by a plurality of rotating elements (wheels, sprockets, etc...) mounted on the track-laying vehicle, the tracks being maintained in circumferential contact with these rotating elements and being driven thereby (or, in the case of trailer-like non-driven vehicles, being supported for rotation thereon).
However, the advent of rubber track in the field of military and other heavy vehicles has created another problem. Metallic tracks of the prior art had many disadvantages that rubber tracks have solved such as damage to paved roads and noise. Metallic tracks had however the advantage to have a better grip on icy and other flat and slippery surfaces.
Indeed, the metallic cleats of these metallic tracks could "eat" into the ice in order to move. Rubber tracks don't have cleats and their ground-engaging lugs cannot "eat" into ice and thus, present some difficulties when driven on icy surfaces.
Hence, there is a need for a device that can improve the traction of endless rubber tracks especially when the vehicle is traveling on icy surfaces. Such a device should be easily and rapidly installed and removed from the rubber track.
Obiect of the Invention There is therefore a need for a traction chain that can be installed on an endless rubber track to improve its traction capability.
Other and further objects and advantages of the present invention will be obvious upon an understanding of the illustrative embodiments about to be described or will be indicated in the appended claims, and various advantages not referred to herein will occur to one skilled in the art upon employment of the invention in practice.
Summary of the Invention To attain these and other objects which will become more apparent as the description proceeds according to one aspect of the present invention, there is provided a traction chain assembly for an endless traction band.
The traction chain assembly of the present invention is designed to be installed on the outer ground-engaging surface of an endless rubber traction band having an outer surface and an inner surface. The traction chain assembly is used to improved the traction of a tracked vehicle when the driving conditions are such that the friction between the track and the ground is too low.
The traction chain assembly preferably comprises at least two laterally extending parallel chains, cables or the like. These chains are removably attached on both sides of the track using attaching brackets and screws, bolts and nuts or the like.
The two chains are also linked together via different types of traction enhancing chain devices.
A first type of traction enhancing chain device is a traction enhancing chain, extending between both parallel chains. The particularity of these chains is that their links comprises outwardly projecting grousers. These grousers help improve the traction of the endless track.
A second type of traction enhancing chain comprises a large, preferably central, traction ring, preferably in the form of a circle. Other shapes could also be used. The traction ring also comprises a plurality of outwardly projecting grousers. 'The traction ring preferably sits on the top of a ground engaging lug of the outer surface of the traction band. The traction ring is connected to both parallel chains via at least two, but preferably four, chain segments. The links of these chain segments may also comprise grousers.
Preferably, a plurality of these traction chain assemblies are installed on the traction band to improve its traction capability.
Other aspects and many of the attendant advantages will be more readily appreciated as the same becomes better understood by reference to the following detailed description and considered in connection with the accompanying drawings in which like reference symbols designate like elements throughout the figures.
Descriution of the Drawings For a fuller understanding of the nature and object of the invention, reference should be had to the following detailed description taken in connection with the accompanying drawings in which:
Figure 1 is an isometric view of the traction chain assembly as installed on an endless track.
Figure 2 is a side view of the traction chain assembly as installed on an endless track.
Figure 3 is an close-up isometric view of the traction ring of the traction chain assembly.
Description of a Preferred Embodiment '30 Refernng to Figs. 1-3, the traction chain assembly 20 of the present invention is to be installed on an endless traction band 10. The traction band 10 comprises an inner surface 11 and an outer surface 12. The inner surface 11 comprises a plurality of guide lugs 13 to drivingly engage a sprocket wheel (not shown). The outer surface 12 comprises a plurality of ground-engaging traction lugs 14 made of rubber. The pattern of the ground-engaging lugs 14 may be chosen to fit any particular terrain or use of the tracked vehicle.
The traction chain assembly 20 comprises two, parallel and laterally extending chains 21.
Each chain 21 is composed of a plurality of chain links 22. These chain links 22 are ordinary links known in the art. Chains 21 are removably attached to the traction band 10 via attachment brackets 23 and screws 24. The brackets 23 are screwed or otherwise attached to the side of guide lugs 13 as to not hinder to good functioning of the traction band 10. The brackets 23 comprise a pair of hooks 25 to attach the chains 21 to the brackets 23.
The two parallel chains 21 are linked together by traction enhancing chain devices 30 and 40.
Traction enhancing chain device 30 is made of a chain segment 31. The chain segment 31 comprises a plurality of chain links 32. The number of chain links 32 is chosen depending on the size of the traction chain assembly 20, the size of the endless track 10 and the size of each link 32. The number of chain links 32 is a design choice.
Each link 32 is an oval-shaped link which further comprises at least one outwardly projecting grouser 33. Grouser 33 improves the traction of the endless track 10.
Traction enhancing chain device 40 is more complex than traction enhancing chain device 30. Referring particularly to Figs. 1 and 3, traction enhancing chain device 40 comprises a central traction ring 41. Traction ring 41 comprises a plurality of outwardly projecting grousers 42. Grousers 42 act like grousers 33 and improve the traction of the traction band 10. The size and shape of grousers 42 (and 33) are chosen to best fit the surface onto which the grousers 42 and 33 will be used. Thus, other sizes and shapes are possible without departing from the scope of the invention. Also, even if in the preferred embodiment, the traction ring 41 has the shape of a ring, other shapes like polygonal and oval shapes are possible. Traction ring 41 is attached to both chains 21 via at least two chain segments 43. Chain segments 43 comprises a plurality of chain links 44.
Even though they are not shown in Figs. 1-3, chain links 44 can comprise outwardly projecting grousers.
As shown in Figs. 1 and 3, traction enhancing chain devices 30 and 40 are preferably mounted over ground-engaging lugs 14 as to further improve the traction of the endless track 10.
Furthermore, even though the embodiment of Fig. 1 comprises only two traction enhancing chain devices 30 and two traction enhancing chain devices 40, it is to be understood that the embodiment of Fig. 1 is by no means limitative in nature and that the number, placement and design of the traction enhancing chain devices 30 and 40 may vary according to the size and design of the endless track 10 and also according to the intended surface of use of the endless track 10. Thus, other designs, shapes and configurations are possible without departing from the scope of the invention.
Since traction chain assembly 20 is to sustain repeated impacts, traction chain assembly 20 is preferably made of high-strength metal such as stainless steel, heat treated steel, forged steel or other shock-resistant alloys.
To install the traction chain assembly 20 on the endless track 10, the user must first align the first attachment bracket 23 with a first guide lug 13 and then screw the bracket into the first guide lug 23 with a first screw 24. Then, the user aligns the second attachment bracket 23 with a second guide lug 13, located on the opposite side of the endless track 10 and then screws the second bracket 23 in the second lug with a second screw 24. The traction chain assembly 20 must preferably be fully assembled prior to being installed on an endless track 10.
Upon installation, the traction chain 20 should be tightly pressed against endless track 10 outer surface I 2.
In another preferred embodiment of the present invention, the laterally extending chains 21 are replaced by laterally extending cables. The chain segments 43 can also be replaced by cables.
In another embodiment, the guide lug 13 onto which the bracket 23 is installed further comprises a laterally extending hole, going through the entire width of the lug 13. In this embodiment, the bracket 23 is fixedly attached to the guide lug 13 with a bolt and nut assembly. The bolt is inserted in the laterally extending hole. The nut is then screwed onto the bolt to fixedly attach bracket 23. In a variant of this embodiment, the nut is directly embedded into the guide lug during the manufacture of the endless track 10.
In yet another embodiment, the brackets 23 of the traction chain assembly 20 are fixedly attached in the outer ground engaging lugs 14 of the endless track 10 using screws.
Although the present traction chain for an endless track has been described with a certain degree of particularity, it is to be understood that the disclosure has been made by way of example only and that the present invention is not limited to the features of the embodiments) described and illustrated herein, but includes all variations and modifications within the scope and spirit of the invention as hereinafter claimed.
In another preferred embodiment of the present invention, the laterally extending chains 21 are replaced by laterally extending cables. The chain segments 43 can also be replaced by cables.
In another embodiment, the guide lug 13 onto which the bracket 23 is installed further comprises a laterally extending hole, going through the entire width of the lug 13. In this embodiment, the bracket 23 is fixedly attached to the guide lug 13 with a bolt and nut assembly. The bolt is inserted in the laterally extending hole. The nut is then screwed onto the bolt to fixedly attach bracket 23. In a variant of this embodiment, the nut is directly embedded into the guide lug during the manufacture of the endless track 10.
In yet another embodiment, the brackets 23 of the traction chain assembly 20 are fixedly attached in the outer ground engaging lugs 14 of the endless track 10 using screws.
Although the present traction chain for an endless track has been described with a certain degree of particularity, it is to be understood that the disclosure has been made by way of example only and that the present invention is not limited to the features of the embodiments) described and illustrated herein, but includes all variations and modifications within the scope and spirit of the invention as hereinafter claimed.
Claims (3)
1. ~A traction chain assembly for use with a longitudinally extending endless rubber traction band, said traction band comprising an inner surface, said inner surface comprising a plurality of guide lugs, an outer ground-engaging surface, said outer surface comprising a plurality of ground-engaging lugs, a first side and a second side, said traction chain assembly comprising:
a. ~attachment means fixedly attached to said guide lugs, one said attachment means attached to said band first side and one said attachment means attached to said band second side;
b. ~at least two laterally extending chains;
c. ~at least one traction enhancing chain device, said chain device extending between said laterally extending chains;
wherein said laterally extending chains and said chain device are located on said band outer surface and said traction chain improves the traction capability of said traction band.
a. ~attachment means fixedly attached to said guide lugs, one said attachment means attached to said band first side and one said attachment means attached to said band second side;
b. ~at least two laterally extending chains;
c. ~at least one traction enhancing chain device, said chain device extending between said laterally extending chains;
wherein said laterally extending chains and said chain device are located on said band outer surface and said traction chain improves the traction capability of said traction band.
2. ~A traction chain assembly for use with a longitudinally extending endless rubber traction band, said traction band comprising an inner surface, said inner surface comprising a plurality of guide lugs, an outer ground-engaging surface, said outer surface comprising a plurality of ground-engaging lugs, a first side and a second side, said traction chain assembly comprising:
a. ~attachment means fixedly attached to said guide lugs, one said attachment means attached to said band first side and one said attachment means attached to said band second side;
b. ~at least two laterally extending cables;
c. ~at least one traction enhancing chain device, said chain device extending between said laterally extending cables;
wherein said laterally extending cables and said chain device are located on said band outer surface and said traction chain improves the traction capability of said traction band.
a. ~attachment means fixedly attached to said guide lugs, one said attachment means attached to said band first side and one said attachment means attached to said band second side;
b. ~at least two laterally extending cables;
c. ~at least one traction enhancing chain device, said chain device extending between said laterally extending cables;
wherein said laterally extending cables and said chain device are located on said band outer surface and said traction chain improves the traction capability of said traction band.
3. ~A method to install a traction chain assembly for use with a longitudinally extending endless rubber traction band, said traction band comprising an inner surface, said inner surface comprising a plurality of guide lugs, an outer ground-engaging surface, said outer surface comprising a plurality of ground-engaging lugs, a first side and a second side, said traction chain assembly comprising a first and a second attachment brackets, at least two laterally extending chains and at least one traction enhancing chain device, said chain device extending between said laterally extending chains, said method comprising the steps of:
a. ~attaching said first attachment bracket on said guide lug located on said first side of said band;
b. ~attaching said second attachment bracket on said guide lug located on said second side of said band;
wherein said laterally extending chains are already attached to said brackets and said traction enhancing chain devices are already attached to said laterally extending chains.
a. ~attaching said first attachment bracket on said guide lug located on said first side of said band;
b. ~attaching said second attachment bracket on said guide lug located on said second side of said band;
wherein said laterally extending chains are already attached to said brackets and said traction enhancing chain devices are already attached to said laterally extending chains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2511866 CA2511866A1 (en) | 2005-07-12 | 2005-07-12 | Traction chain assembly for an endless traction band and method for installing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2511866 CA2511866A1 (en) | 2005-07-12 | 2005-07-12 | Traction chain assembly for an endless traction band and method for installing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2511866A1 true CA2511866A1 (en) | 2007-01-12 |
Family
ID=37625899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2511866 Abandoned CA2511866A1 (en) | 2005-07-12 | 2005-07-12 | Traction chain assembly for an endless traction band and method for installing same |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2511866A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008055352A1 (en) * | 2006-11-09 | 2008-05-15 | Soucy International Inc. | Traction chain assembly for elastomeric tracks |
| US11560191B2 (en) | 2020-02-19 | 2023-01-24 | Performance Kennels & Stables LLC | Traction devices for elastomeric tracks, and related methods |
-
2005
- 2005-07-12 CA CA 2511866 patent/CA2511866A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008055352A1 (en) * | 2006-11-09 | 2008-05-15 | Soucy International Inc. | Traction chain assembly for elastomeric tracks |
| EP2086822A1 (en) * | 2006-11-09 | 2009-08-12 | Soucy International Inc. | Traction chain assembly for elastomeric tracks |
| EP2086822A4 (en) * | 2006-11-09 | 2010-08-04 | Soucy Int Inc | Traction chain assembly for elastomeric tracks |
| US8016369B2 (en) | 2006-11-09 | 2011-09-13 | Soucy International Inc. | Traction chain assembly for elastomeric tracks |
| US11560191B2 (en) | 2020-02-19 | 2023-01-24 | Performance Kennels & Stables LLC | Traction devices for elastomeric tracks, and related methods |
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| Date | Code | Title | Description |
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| FZDE | Dead |