Abstract: The elastic crawler (1) according to this disclosure comprises: an endless belt-like main body (2) having elasticity; a plurality of cores (3) embedded in a circumferential direction of the main body (2); a plurality of lugs (5) each being arranged in a manner protruding from an outer circumferential surface of the main body (2) and extending between the plurality of cores (3) adjacent in the circumferential direction of the main body (2); and an inner circumferential concavity (G1) formed at a position on an inner circumferential surface of the main body (2) overlapping, in a thickness direction of the main body (2), an outer circumferential concavity (G2) of each of the lugs (5). The elastic crawler device comprises: the elastic crawler (1); and a drive wheel, an idle wheel and a rolling wheel.

Abstract: A running device includes: a rubber crawler of an endless shape; a guide protrusion disposed in center, with respect to a width direction, of an inner circumferential surface of the rubber crawler; a driving protrusion disposed on each of opposite sides, with respect to the width direction, of the inner circumferential surface of the rubber crawler; and a track roller disposed over the guide protrusion, and configured to roll on the inner circumferential surface of the rubber crawler and to be in surface-contact with a side surface of the guide protrusion and a side surface of the driving protrusion. The track roller has side surfaces disposed on end portions with respect to the width direction, surface-contactable with the side surface of the guide protrusion and the side surface of the driving protrusion, respectively.

Abstract: Provided is an elastic crawler and an elastic crawler device capable of achieving both low fuel consumption and excellent ride comfort. The elastic crawler comprises: a main body; cores respectively having a pair of wings and being embedded in a circumferential direction; a track roller rolling surface formed on an inner circumferential surface of the main body; a recess formed on the inner circumferential surface in a manner extending from the track roller rolling surface toward a widthwise outer side; lugs formed on an outer circumferential surface of the main body, the lugs respectively extending in a width direction between the cores from one end overlapping the track roller rolling surface in a thickness direction toward the other end overlapping a part in which the wings of the cores are embedded in the thickness direction. The elastic crawler device comprises the elastic crawler, a sprocket and a track roller.

Abstract: Provided is an elastic crawler with improved transmission of the driving force to snow, soft ground, etc. by improving the packing performance during running of the elastic crawler. The elastic crawler 1 comprises: a crawler main body 2 formed into an endless shape with an elastic body; a plurality of cores 3 being embedded in the crawler main body 2 in a manner spaced from each other in the crawler circumferential direction and extending in a crawler width direction; and a plurality of lugs 4, 5 raised from an outer circumferential surface of the crawler main body 2 and respectively surrounding predetermined regions R overlapping the cores 3 in a crawler thicknesswise view.

Abstract: A tread pattern for a vehicle track, such as an endless track for earth moving equipment, comprises a plurality of blocks. Each block includes two lateral traction portions extending from a center traction portion in substantially opposite directions. The two lateral traction portions are longitudinally aligned. In some examples, each lateral traction portion may define a T-shape. For example, the lateral traction portions of each block may define a protrusion to define the “T” shape, and, in some examples, the protrusions may extend in opposite longitudinal directions. In some examples, the lateral traction portions of each block may be the same shape, where one lateral traction portion may be oriented at about 180 degrees relative to the other lateral traction portion.

Abstract: The tracks of the present invention have drive faces which are tapered surfaces, such as a convex tapered surface which extends laterally over the drive surface of the lugs. The utilization of lugs having tapered drive faces improves the performance and durability of the track. The tracks having the drive face design of this invention also allow for more power to be delivered without damaging the track or causing excessive wear.

Abstract: Provided is a rubber track (10) including a track main body (11) formed of a rubber material in an endless belt shape, in which a plurality of lug sections (14, 15) protrude from an outer circumferential surface (11b) of the track main body (11) in a track circumferential direction (A) at an interval, engaging sections (17) engaged with a vehicle wheel of a track-type vehicle are disposed at a portion (16) of the track main body (11) disposed between the lug sections (14, 15) neighboring in the track circumferential direction (A), and through-groove sections (24, 25) passing through the lug sections (14, 15) in the track circumferential direction (A) are formed in the lug sections (14, 15), wherein areas of ground surfaces (26) constituted by top surfaces (14a, 15a) of the plurality of lug sections (14, 15) are different from each other at both sides in a track widthwise direction (B) with respect to an imaginary line (L) which extends in the track circumferential direction (A) throughout the entire circumfer

Abstract: An endless rubber elastic body 1; a plurality of cores 2 arranged at predetermined pitches and extending in a width direction of the rubber elastic body; a steel cord reinforcing layer surrounding the cores; and a lug 4 formed on an outer peripheral surface of the rubber elastic body 1 at predetermined intervals. Thicknesses of respective end portions of each core 2 are gradually decreased or made constant toward respective end edges. A covering thickness t1, t2 of rubber elastic body 1 is thicker at a portion between lugs on each of an inner and outer peripheral surface side than covering thickness T1, T2 of the rubber elastic body. Covering surfaces on both inner and outer peripheral surface sides are flat.

Abstract: A track formed of a molded rubber base sandwiching a cord layer and a single layer of ply fabric extending longitudinally of the track.

Abstract: The invention describes a track chain for diggers, bulldozers, loading vehicles, crawlers, agricultural machines, transport vehicles and the like, a chain link and a chain-driven vehicle with new and useful features concerning the special design of the track chain. The track chain can transfer the driving force well-proportioned, so that it can prevent the rubber track from running off the rails or lateral dislocation.

Abstract: An endless track for traction of a work vehicle. The endless track comprises a body of elastomeric material and a plurality of cores at least partially embedded in the elastomeric material. Each core comprises a pair of wings extending transversally to a longitudinal axis of the endless track, and a wheel guide comprising at least one guide projection projecting on an inner side of the endless track. Each guide projection comprises a top end and a wheel-facing side for facing wheels of the work vehicle, such as roller wheels that roll on the inner side of the endless track. The wheel-facing side comprises a recess to impede passage of grit between the wheel-facing side and a portion of the elastomeric material in the recess. This can enhance a wear resistance of the endless track.

Abstract: A core bar for a rubber crawler capable of enhancing the durability of the rubber crawler by preventing an end-cutting phenomenon in which cracking is generated at the end of the core bar in a crawler lateral direction of the core bar embedded in the rubber crawler when the rubber crawler rides over a curbstone at the road shoulder of a paved road, stones and obstacles on irregular ground, and is pressed in a lateral direction. In the core bar (1) constituting the rubber crawler (3) and embedded in a rubber crawler body (3a), an enlarged width part (2) is formed by elongating the longitudinal end part of the core bar (1) beyond the width dimension of the core bar.

Abstract: A track formed of a molded rubber base sandwiching a cord layer and a single layer of ply fabric extending longitudinally of the track.

Abstract: This invention relates to an endless elastomeric traction band that is used to propel tracked vehicles. The traction band generally comprises a main body defining an outer ground-engaging surface and an inner wheel-engaging surface. The outer surface is generally provided with ground-engaging traction lugs. The inner surface of the traction band is preferably provided with one or more row of longitudinally aligned guide lugs and one or more rows of longitudinally aligned drive lugs. Additionally, guide lug reinforcements are inserted into said guide lugs and said band body to laterally reinforce the guide lugs and minimize de-tracking occurrences.

Abstract: A highly durable elastic crawler with a tensile cord having both ends thereof overlapped mutually in a crawler body thus being circumferentially wound around the crawler is provided. An elastic crawler includes; a crawler body including an endless belt-like elastic body; metal cores embedded in the crawler body, each of the metal cores including vanes and arranged at predetermined intervals circumferentially; and tensile cords transversely arranged, wound around the outer circumference side of the vanes, and embedded in the crawler body while vicinity portions of both ends of the tensile cords are overlapped mutually. An inner circumference side end is arranged at an outer circumference side of any one of the vanes. The distance between the vicinity portion of the inner circumference side end and the outer circumference side portion of the tensile cord overlapped there is increased from the vicinity portion toward the inner circumference side end.

Abstract: A track formed of a molded rubber base sandwiching a cord layer, followed by a cross bar and a single layer of ply fabric extending longitudinally of the track.

Abstract: This invention relates to an endless elastomeric traction band that is used to propel tracked vehicles. The traction band generally comprises a main body defining an outer ground-engaging surface and an inner wheel-engaging surface. The outer surface is generally provided with ground-engaging traction lugs. The inner surface of the traction band is preferably provided with one or more row of longitudinally aligned guide lugs and one or more rows of longitudinally aligned drive lugs. Additionally, guide lug reinforcements are inserted into said guide lugs and said band body to laterally reinforce the guide lugs and minimize de-tracking occurrences.

Abstract: An offset track forms a pattern perpendicular to the centerline of the track which enables tracks to be formed with even or odd number of metal inserts and thus accommodate virtually any tracked vehicle. The offset track uses variations in body thickness and lug width to provide a high performance offset track with improved ride, minimum vibration and longer wear. Use of full size and mini-inserts in a single track minimizes the weight and further enhances the performance of an offset track.

Abstract: A rubber crawler track having less wear at its left and right end portions to improve its durability. The rubber crawler track has steel cords 12 embedded in the longitudinal direction of the track and has a rubber lug 15 formed on the outer periphery side thereof. The rubber crawler track is constructed from three kinds of rubbers that are an inner peripheral side rubber (a), an outer peripheral side rubber (b), and an edge rubber (c) at the left and right of the rubber crawler track. The edge rubber (c) is a rubber layer having the highest hardness degree. The ground contact side, inner peripheral side and ends in the width direction have different kinds of rubber, and the edge rubber (c) having excellent wear resistance with a hardness degree of 72 (JIS A) or greater is placed in particular at the machine body side end of the rubber crawler track because of the significant wear at this location.

Abstract: A tread pattern for a vehicle track, such as an endless track for earth moving equipment, comprises a plurality of groups of tread lugs. Each group of tread lugs may comprise one or more tread lugs defining a generally “S” shape or a variation thereof. A vehicle track comprising the tread pattern may also comprise a support core that is substantially centered with a center of a group of tread lugs.

Abstract: A rubber crawler has a structure in which connecting members are sequentially fitted onto wing portions adjacent to each other without using steel cords for resisting tensile force applied to the rubber crawler. Accordingly, the rubber crawler of the present invention has excellent characteristics in that breakage of steel cords due to the tensile force can be prevented, and torsion of the rubber crawler can be reduced.

Abstract: An elastic crawler having a crawler main body including an endless belt of rubber-like elastic material that is driven by friction with a friction drive wheel. A plurality of guide projections protrude from the inner circumferential surfaces of both lateral edge portions of the crawler main body at specified intervals in the longitudinal direction of the belt. Guide core bodies are embedded to the inside of the respective guide projections in the lateral direction of the belt. A plurality of main body core bodies are embedded in the crawler main body in the same positions as the guide projections in the longitudinal direction of the belt, and a plurality of laterally extending lugs protrude from the outer circumferential surface of the crawler main body at specified intervals in the longitudinal direction of the belt. The guide core bodies and main body core bodies are independent of each other.

Abstract: Even if track rollers roll both on the left and right of rubber protrusions, bias cords are not broken, whereby cracking or chipping of rubber and rusting or cutting of the main cords resulting from cracking or chipping of the rubber are prevented.

Abstract: A rubber crawler (1) in which a plurality of parallel metal links (11) is embedded at regular distances from each other in circumferential direction of the rubber belt (22) and extending in cross direction of the rubber belt (22), each metal link (11) comprising a first (3) and second (13) protrusion at opposing sides (6, 16) of a sprocket (15) provided with an upper surface (7, 17) for guiding supporting rolls, extending in height direction of the metal link (11) with respect to a base (5), each protrusion (3, 13) comprising a first (4) and a second (14) running surface element which extends in longitudinal direction of the crawler (1), in which the second running surface element (14) is positioned shifted in longitudinal and cross direction of the belt (22) with respect to the first running surface element (4), in which the first (4) and the second (14) running surface of adjacent metal links (11) are positioned at least partially adjacent with respect to each other in length direction, wherein the base (5)

Abstract: A rubber crawler track (1) has an endless rubber belt-shaped rubber crawler track main body (2) formed of a rubber elastic body and core metal pieces (3) embedded in the rubber crawler track main body (2) at predetermined intervals in a circumferential direction of the rubber crawler track, wherein a high hardness intermediate rubber layer track main body (2) is provided from below at least the ground contacting surface side of an end portion in a length direction (rubber crawler track width direction) of the core metal pieces (3) toward outside the end portion in a width direction of the rubber crawler track. The rubber elastic body of the rubber crawler track main body (2) is formed in a multiply layered structure with at least two or more layers.

Abstract: Rubber crawler equipment (1) capable of reducing the weight and cost of a rubber crawler, and providing a lightweight and fast drive for tires and crawlers, wherein core members (5) formed of plastic material instead of metal are embedded in a rubber crawler (2), and the rubber crawler (2) is suspendedly installed on tires (3, 4), whereby the rubber crawler (2) can be easily attached and detached, and the extension thereof can be adjusted by regulating the internal pressure of a hollow tire (3).

Abstract: A core bar for a rubber crawler includes: right and left wing parts; an engaging part for connecting the wing parts; right and left protrusions to guide a rolling wheel; and right and left outside rails that are formed on outer sides of the right and left protrusions, respectively, and have overhanging parts extending in the widthwise direction of the wing part. The overhanging part is formed on an edge portion thereof with a surface that slants downward from a top surface of the outside rail.

Abstract: The present invention is an elastic flat tread which can prevent an elastic solid from cracking even if the vehicle runs on a protruding object during traveling. For this purpose, the elastic flat tread is provided with any core (1, 11, 115) of a core (1, 11) attached to a link (6) and a core (115) attached to a metal plate (9A) which is attached to a link (8), and end portions (1a, 1b; 11a, 11h; 115a, 115b) in a longitudinal direction of the aforesaid any core (1, 11, 115) are bent toward the side not in contact with the ground.

Abstract: A rubber crawler includes parallel embedded tensile strength bodies, with each of tensile strength bodies being connected by butt portions. The butt portions of adjacent tensile strength bodies are longitudinally shifted relative to one another in a circumferential direction of the rubber crawler, and at least 75% of the butt portions are positioned on planes of projection of the core bars.

Abstract: An elastic-bodied crawler, in which damages, such as local wear, coming-off of driven projections and the like in use, are prevented from being brought about, and frictional resistance is decreased at engaging portions to provide for durability, comprises a body with a reinforcement layer of reinforcement cables embedded therein circumferentially, driven projections provided in a predetermined pitch on an inner peripheral surface of the body, lug portions formed on an outer surface of the body, and reinforcement members (driven projection reinforcement cables) embedded to bridge the driven projections and the body.

Abstract: An endless track includes an iron link belt, a continuous pad, and a connecting device. The iron link belt includes a link unit assembly constructed of a plurality of link units connected to each other. Each link unit includes a pair of links. The iron link belt may include a plate welded to the pair of links and extending perpendicularly to a direction in which the link unit assembly extends. The continuous pad includes the same number of core metal plates as that of the link units and a single urethane rubber belt covering and being attached to a ground opposing surface of each of the core metal plates. The urethane rubber belt extends continuously over all of the core metal plates. The urethane rubber belt may include a small thickness portion positioned between two adjacent core metal plates. The connecting device connects the iron link belt and the continuous pad.

Abstract: A core bar for a rubber crawler includes: right and left wing parts; an engaging part for connecting the wing parts; right and left protrusions to guide a rolling wheel; and right and left outside rails that are formed on outer sides of the right and left protrusions, respectively, and have overhanging parts extending in the widthwise direction of the wing part. The overhanging part is formed on an edge portion thereof with a surface that slants downward from a top surface of the outside rail.

Abstract: A detachable crawler (1, 20) capable of increasing the durability thereof on a rubber belt part (4) body side, wherein each of a metal core (6) and a track shoe (21) of a detachable pad (5) is formed so that tightening force in a specific range (approx. 4.90 to 78.5 MPa per unit area) can be applied to a rubber elastic body (4a) including a tensile reinforcing layer (2) sandwiched between a core bar (3) in the rubber belt part (4) and the metal core (6) or steel track shoe (21) of the detachable pad (5).

Abstract: In an elastic endless crawler comprising an annular belt-shaped elastic crawler body, according to the present invention, the crawler body comprises a series of driven elements for operation of the crawler and a reference plane, which reference plane passes through respective centers of the drive elements and extends in a longitudinal direction of the crawler, and a thickness of one side relative to the reference plane and a thickness of the other side relative to the reference plane are different from one another. Preferably, lengths between respective crawler body end surfaces facing in a crawler widthwise direction, and the reference plane are different from one another. Further, preferably, a thickness of one side, which is shorter in length, of the crawler body is greater than that of the other side, which is longer in length, of the crawler body.

Abstract: In a resilient crawler of this invention, sufficient flexibility at the portion between the lugs is obtained and such problems as separation of rubber are prevented while improving riding comfort by reducing the difference in rigidity between the portion where the lug is formed and the portion between the lugs, and improving lateral rigidity to assure the tractive force. Therefore, a resilient crawler of the present invention comprises a crawler body formed of a resilient material in the shape of an endless belt and having a multiplicity of lugs projecting from the outer peripheral surface at intervals longitudinally along the crawler body; and a multiplicity of linear lateral reinforcing members disposed in the crawler body so as to extend laterally thereof and be arranged longitudinally therealong.

Abstract: A rubber crawler has a core of generally parallelepiped blocks (5) each having two longitudinally spaced through holes (9) in the lower surface region and bars (4) inserted in the through holes (9), the generally parallelepiped blocks (5) being arranged in two series, with the blocks of one of the series laterally overlapping the blocks of the other series, and with sprocket engaging holes (2) disposed therebetween, and the bars (4) being inserted in alternately corresponding through holes (9) in adjacent generally parallelepiped blocks (5), the bars (4) being connected within the generally parallelepiped blocks (5), the bars (4) being connected within the generally parallelepiped blocks (5) and embedded in the rubber crawler.

Abstract: A rubber crawler which is mounted on a continuous chain tread traveling device, such as an agricultural working vehicle, a civil engineering machine, a construction machine or a transportation vehicle, and designed to improve durability in the connecting section of a tensile strength body embedded therein. A plurality of tensile strength bodies (5) paralleled and arranged in a row widthwise of the rubber crawler (1) along the circumferential direction of the rubber crawler are divided into two along the middle of the rubber crawler. In embedding the two rows of tensile strength bodies in the rubber crawler, the front ends of the opposite ends (5a, 5b) of the individual tensile strength bodies are abutted against each other and connected together into an endless form.

Abstract: The present invention is an elastic flat tread which can prevent an elastic solid from cracking even if the vehicle runs on a protruding object during traveling. For this purpose, the elastic flat tread is provided with any core (1, 11, 115) of a core (1, 11) attached to a link (6) and a core (115) attached to a metal plate (9A) which is attached to a link (8), and end portions (1a, 1b; 11a, 11h; 115a, 115b) in a longitudinal direction of the aforesaid any core (1, 11, 115) are bent toward the side not in contact with the ground.

Abstract: The crawler belt 20 is structured of a plurality of inner shoes 21; a plurality of outer shoes 30 arranged to oppose each of the inner shoes; an endless ring-shaped rubber belt member 26 retained between the inner shoes and outer shoes respectively opposing each other; and an endless ring-shaped steel wire 27 embedded in the belt member extending in the longitudinal direction. The inner shoes 21 are arranged side by side along the inner periphery of the belt member, the outer shoes are arranged side by side along the outer periphery of the belt member, and concave portions are arranged in the longitudinal direction between the inner shoes and formed openly toward the inner periphery for receiving the sprocket teeth. Thereby, it is possible to reduce the travel noise while maintaining the advantages of the strength, durability and repairability of steel crawler belts.

Abstract: This invention relates to a rubber crawler comprising an endless rubber belt directed around two toothed wheels, whereby in circumferential direction of the belt parallel metal core elements are embedded in the chain and extend in cross direction of the band and are provided for guiding supporting rolls provided between said wheels, whereby each metal core element comprises a guiding for guiding said supporting rolls and a carrier for receiving said guiding, whereby the carrier and the guiding are made as separate parts and are connected to each other. The abstract refers to FIG. 4a.

Abstract: A rubber crawler includes an endless rubber belt directed around two toothed wheels, whereby in the circumferentrial direction of the rubber belt parallel metal core elements are embedded in the rubber belt and extend in cross direction of the rubber belt and are provided for guiding supporting rolls provided between the toothed wheels, each metal core element includes a guiding for guiding the supporting rolls and a carrier for receiving the guiding, and the carrier and the guiding are made as separate parts and are connected to each other.

Abstract: When a conventional swivel working vehicle is constructed such that a real part of a swivel body is not extended beyond a traveling device in order to improve an operability at a small site, a balance weight must he significantly increased in weight so as to prevent falling and tumbling of a machine body. In the invention, left and right core metal projections of a crawler are laterally offset from a center line of the crawler and right and left lugs are formed on an outer peripheral surface of the crawler. The lugs are formed to assume the same shape on the right and left sides or laterally symmetrical shapes or occupy the same area on the right and left sides, and to be symmetrically shaped about a center of rotation of the swivel body between the left and right crawlers of the machine body.

Abstract: A rubber crawler has a rubber elastomer constituting a main body of the crawler, at least one metal core buried in the rubber elastomer and extending in a widthwise direction perpendicular to a running direction of the crawler, and at least one rubber lug formed on an outer peripheral face of the rubber elastomer. An element is applied to each widthwise end of the metal core to improve the durable life of the crawler.

Abstract: A rubber crawler has a rubbery elastomer constituting a main body of the crawler. At least one metal core is buried in the rubbery elastomer and extending in a widthwise direction perpendicular to a running direction of the crawler. At least one rubber lug is formed on an outer peripheral face of the rubber elastomer. A specified configuration is applied to each widthwise end of the metal core to improve the durable life of the crawler.