Abstract: To provide a crawler belt with no movable portion connected by pins etc., and to provide a crawler type traveling device with few rotating wheel mechanisms and equalizing the pressure contacting the ground. A crawler type traveling device comprising: a driving wheel (12) driven by a driving axis (11); idler wheels (13) having axes parallel to that of the driving wheel; and a crawler belt which is spooled around the driving wheel and the idler wheels and travels around the driving wheel and the idler wheels. The crawler belt comprising: an inner crawler belt (18) having an engaging structure engaging with the driving wheel, the inner crawler belt being driven by the driving wheel; an outer crawler belt (19) encircling circumferentially the outside of the inner crawler belt; a plurality of elastic members (20) connecting the inner crawler belt to the outer crawler belt; and a plurality of crawler plates (21) mounted to the outer crawler belt, and having lag for engaging with the ground.

Abstract: The present invention relates to a separable rubber track used in a tank. The rubber track is divided into a plurality of track units. A pair of connection cores connected to steel cores is provided on both ends of the track unit. The track units are connected to each other through coupling members rotatably combined with the connection cores to form an integrated endless track. Therefore, when a part of rubber molding is damaged during operation, it is possible to easily replace the damaged part with a new one. Therefore, it is possible to remarkably reduce the time and expenses spent on maintaining and repairing the rubber track, to prolong the life of the rubber track, and to conveniently replace the damaged part on site.

Abstract: A method for treating a surface of a first component wherein at least a portion of the surface of the first component contacts a surface of a second component. The method includes forming a compound layer at at least a portion of the surface of the first component by a thermochemical diffusion treatment and isotropically finishing the at least a portion of the surface of the first component that contacts the surface of the second component.

Abstract: The invention relates to a track specially designed for vehicles such as motorcycles and bicycles. This track, which is transversely curved, allows the vehicle to move when in an upright position or when tilted sideways. Its main characteristics are that it comprises a curved belt, consisting of flexible straps and rigid curved runners, as well as internal support belts supporting the sides of the runners which are in contact with the ground. The claims of the invention relate to the transversal curvature of the track and to the use of internal support belts.

Abstract: A caterpillar track comprising chain links hinged to one another by bolts, each bolt traversing boreholes of adjacent chain links and being directly supported in the borehole of one chain link while being supported in the other chain link by resilient annular elements made of polymeric material cross-linked with the bolt and frictionally engaging the borehole walls, the improvement comprising supporting the bolt (1) in the boreholes (4) of the other chain link (2) also by at least one rolling bearing (9,16) arranged between adjacent resilient annular elements (5,6).

Abstract: An improved bush assembly for insertion into an aperture of a lug of a track part of a tracked vehicle is disclosed. An exposed outermost side wall of the bush has an extended surface length, so that when under design precompression the wall makes angles of approximately 90.degree. with the inner surface of the aperture and 70.degree.-80.degree. with the outer surface of the central pin. The wall may be concave and the bush may comprise a number of annular bush parts. The high tensile strains which develop on that wall of the bush are thereby minimized and bulging out of the bush beyond the end of the pin is discouraged.

Abstract: A shaft 12 is secured to and is rotatable with a wheel hub of a vehicle. A sprocket wheel 22 is secured to and rotates with the shaft 12 and has evenly spaced apart, tooth-receiving sockets 28 at its periphery. The shaft 12 is mounted on the upper portion of a track supporting frame 42 by a pillow block mount 52 on each side of the sprocket wheel 22. Each mount 52 has housed within it bearing means 54 surrounding the shaft 12. Idler wheels 44 are mounted on the lower portion of the frame 42. An endless track 82 extends about the sprocket wheel 22 and the idler wheels 44. The track 82 has a multiplicity of radially inwardly projecting drive teeth 84 that roll into and out from the sprocket wheel sockets 28 when the vehicle is operated. The drive teeth 84 are of sufficient depth to prevent disengagement of the track 82 from the sprocket wheel 22. The track 82 includes a multiplicity of transverse segments 86 secured together by at least one endless belt 94.

Abstract: This invention involves a filament wound composite core which is combined with one or more additional cores to produce a loop track characterized by transverse curvature and stud bands extending between the sandwiched or laminated cores and which extend to provide sprocket engagement for transferring motive power to the loop track, and a system for mounting the novel loop track on a vehicle.

Abstract: A track chain has a plurality of links pivotally connected together in an endless train and a plurality of shoes connected to the links. A noise reduction device for the track chain has a spring connected to the back sides of adjacent shoes and is of a construction sufficient for applying an elastic resistance to pivotal movement of respective pairs of adjoining links.

Abstract: Each track shoe in a link-shoe assembly built in a track chain for a track-type vehicle is lined with an elastomer pad. One elastomer pad in one track shoe abuts another adjacent elastomer pad in compression in a manner that when adjacent track links effect a relative pivotal movement, the adjacent elastomer pads are further compressed together and produce an elastic resistance for track links, thereby eliminating a sag in a track chain.Preferably, each elastomer pad is secured to each track shoe through the medium of a plate spring. The size of the elastomer pad is so selected that adjacent pads are compressed together, when assembled.Alternatively, adjacent corners of elastomer pads may be rounded so as to provide a smooth contact therebetween, when the adjacent track links effect a relative pivotal movement, or may be covered with extended portions of the plate spring to reduce wear of the elastomer pads.

Abstract: Apparatus for reducing the noise made by circulation of an endless drive chain comprising a plurality of substantially identical links about a drive sprocket and idler is disclosed. According to the invention, a substantial portion of the energy present in pivotal movement of adjacent links with respect to each other, which occurs as the links are received on the drive sprocket and idler, is absorbed and returned to the pivotal movement therebetween which occurs when the links leave their engagement with the drive sprocket and idler. Specific embodiments of the invention particularly suited for use in reducing track noise in a track-type vehicle are described.

Abstract: A joint with a combined seal and bushing and including a cylindrical member and a bushing on the cylindrical member and two links piloted on the cylindrical member, and all forming a joint. The members present a circular counterbore and the bushing has its end facing the counterbore and there is an elastomeric combined seal and bushing member in the counterbore and being compressed between the members to avoid wear therebetween and dampen noise.

Abstract: An endless drive system suitable for use, for example, as a tracked vehicle drive system, an endless belt or an endless chain drive system. A number of endless drive sections are interconnected by cable connector sections. The cable connector sections include cables which can be encased in rubber. The cables can be provided with end retaining members which aid in retaining the cable connector sections and the endless drive sections together and which prevent expanding, fraying or unwinding of the cable ends. Special end retaining members can be utilized to aid self-alignment of the system.