Provided is a pulley structure in which the action of excessive force on a coil spring can be suppressed to prevent damage to the coil spring variation in friction torque can be suppressed and the degree of freedom in the design can be increased by freely varying the friction torque. A drive pulley structure (1) has...

The present invention pertains to an auto tensioner equipped with: a base having a cylindrical section; a rotating member supported so as to be rotatable relative to the base; a pulley rotatably provided on the rotating member; a friction member sandwiched between the inner circumferential surface of the cylindrical...

The present invention provides a transmission belt which is provided with: a core wire extending in the lengthwise direction of the belt; an adhesive rubber layer in contact with at least part of the core wire; a back surface rubber layer which is formed on one surface of the adhesive rubber layer; and an inner surf...

The present invention is a transmission belt provided with cords extending in the lengthwise direction of a belt, an adhesive rubber layer that contacts at least a portion of the cords, a compressed-rubber layer formed on one surface of the adhesive rubber layer, and an elastic rubber layer formed on the other sur...

The present invention provides a power transmission belt for transmitting high loads, containing: a center belt containing: an elastomer; and a core embedded in the elastomer; and a block containing: an upper beam; a lower beam; and a pillar connecting the upper beam and the lower beam so as to form a groove to fit ...

The present power transmission mechanism comprises: a first rotation member mounted integrally rotatably on the rotation shaft of a drive apparatus; a second rotation member rotatable integrally with or relative to the first rotation member; an elastic member interposed between the first and second rotation members ...

The invention relates to a power transmission belt provided with: an adhesive rubber layer in which tension cords are embedded in the longitudinal direction of the belt; a compressed rubber layer formed on one surface of the adhesive rubber layer; and an expanded rubber layer formed on the other surface of the adhes...

The present invention pertains to an auto tensioner equipped with: a stationary member having a first tube part; a rotating member having a second tube part at least a portion of which is arranged overlapping the first tube part in the radial direction; and a water discharge mechanism provided at the interface betwe...

The present invention is related to a pulley structure that is provided with a tubular first rotating body around which a belt is wound a second rotating body provided inside the first rotating body so as to be rotatable relative to said first rotating body and a torsion coil spring which is housed in the space betw...

An automatic tensioner includes a base, a rotary member which is supported, rotatably on the base and to which a pulley around which a belt is wound can be attached, a coil spring including one end locked on the base and the other end locked on the rotary member and adapted to bias the rotary member in one direction...

The present invention pertains to a V ribbed belt provided with a a core a stretched layer and a compressed rubber layer including a vulcanizate of a rubber composition a side portion of the compressed rubber layer being a grinded surface that comes into contact with a pulley and a bottom portion of the compressed r...

The present invention pertains to a pulley structure (1) equipped with an outer rotating body (2) an inner rotating body (3) and a coil spring (4) said pulley structure 1 characterized in that a cross section of the spring wire of the coil spring (4) along a direction running along the rotational axis and parallel t...

The present invention pertains to an auto tensioner (1) provided in an auxiliary device drive belt system that: comprises a friction member (6) that is sandwiched between an arm (3) and the inner circumferential face of an outer cylinder (21) of a base (2) in the radial direction of the outer cylinder (21) and that ...

The present invention relates to a pulley structure (1) equipped with an outer rotating body (2) an inner rotating body (3) and a coil spring (4) provided between the outer rotating body (2) and the inner rotating body (3). The coil spring (4) is configured so as to undergo torsional deformation in a diameter-expand...

The present invention provides a pulley structure (10) provided with: a tubular outer rotating body (2) having a belt (B) looped thereon; an inner rotating body (3) which is disposed radially inside the outer rotating body (2) and which is rotatable relative to the outer rotating body (2); and a torsional coil sprin...

The present invention pertains to a toothed belt comprising a back portion in which a core wire extending in the belt circumferential direction is embedded, and a plurality of tooth portions formed on the inner circumferential surface of the back portion at intervals in the belt circumferential direction, and includ...

The present invention pertains to an auxiliary tool for fixing, on a pulley, a belt installation jig that is used when winding and suspending a belt extendable and contractible in the circumferential length direction between a plurality of pulleys. The auxiliary tool is formed in an end-including shape that has a ri...

The present invention relates to a transmission V-belt including a cured product of a first rubber composition, wherein: the first rubber composition comprises a polymer component (A) including an ethylene-a-olefin elastomer, a crosslinking agent (B) including a sulfur-based crosslinking agent, and a staple fiber (C...

The present invention relates to a toothed belt characterized by comprising a back portion, a core wire embedded in the back portion in a belt longitudinal direction and composed of a stranded cord containing steel fibers, a plurality of belt teeth formed on an inner peripheral side of the back portion along the bel...

The present invention relates to a joined V-belt comprising a plurality of wrapped V-belt portions and a tie band. The outer peripheral surfaces of the wrapped V-belt portions are coupled by the tie band. The wrapped V-belt portions each include a belt body and an outer fabric cover covering the outer surface of the...

The present invention pertains to a rubber composition for a transmission belt, the rubber composition comprising: a polymer component including an ethylene-a-olefin elastomer; carbon black; and clay. The Mooney viscosity of the ethylene-a-olefin elastomer at 125°C is 25 ML(1+4) @ 125°C or less, and the pH of the cl...

The present invention relates to a belt mechanism provided in a bicycle continuously variable transmission including a drive pulley and a driven pulley each configured from a pair of sheaves that can be moved toward and away from one another in the direction of an axis of rotation, and a V-belt wound between the dri...

The present invention pertains to a toothed belt comprising a back portion in which a core wire extending in the belt circumferential direction is embedded, and a plurality of tooth portions formed on the inner circumferential surface of the back portion at intervals in the belt circumferential direction, and includ...