Abstract: [Problems] To provide an endless belt for power transmission capable of efficiently improving the yawing attitude of the elements in a variable pulley. [Means for Solving the Problems] This endless belt (40) for power transmission includes the elements (42) and an annular band-like member (46) for supporting the elements (42). The endless belt is winched between a pair of variable pulleys (20, 30). Groove parts (60) extending from the front surface of the belt in the forward movement direction to a predetermined position not reaching to the rear surface of the belt in the forward movement direction are formed in the side surfaces (42A) of the elements (42) contacting with the belt sliding surfaces (26, 36) of the variable pulleys (20, 30).

Abstract: A reel-up/winder, comprising one or several members (11, 12) that support the reel/roll (10) to be formed onto a reel/roll spool (16), of which members at least one support member is a belt support member (12), which consists of a belt loop (15) which is supported by means of at least two rolls (13, 14), whose axes are substantially parallel to the axis of the reel/roll spool (16). Into the outer face of the mantle of at least one roll (13, 14) in said belt support member (12), a substantially spiral-shaped groove (204) has been formed, which extends across the axial width (1) of the roll mantle (202).

Abstract: An endless tension belt is formed by spirally winding a tension member comprising a cord that serves as a core coated with a rubber-like resilient material in such a manner that flat clamp faces of adjacent tension members are pressedly joined with respect to each other.

Abstract: An endless elastomeric vacuum sweeper belt for use in a vacuum sweeper having a diamond pattern drive surface. A first set of ribs project inwardly in a substantially diagonal direction along the drive surface of the belt. A second set of ribs project inwardly along the drive surface of the belt in a substantially diagonal direction opposite the direction of the first set of ribs. The first and set second set of ribs together define a diamond-like pattern on the drive surface as well as a number of particle recesses for the temporary collection of matter. Each rib includes knife-like edge portions to increase the traction of the belt on a drive surface by cutting, loosening and expelling foreign matter lodged between the belt drive surface and the rotation member and/or the drive source of the vacuum sweeper.

Abstract: A flexible transmission device for continuously variable transmissions comprises an endless flexible connecting element and a plurality of transverse links. Each link includes at least one groove into which is engaged the flexible connecting element. The links are, preferably, covered by a fabric, and the exterior surface of the fabric is for being positioned in contact with the flanges of the pulleys over which the belt is positioned and operates.

Abstract: Transmission chain for a cone pully drive, with intercoupled links and pivot pins inserted through link openings of which the end surfaces cooperate with the cone surfaces, where between each pivot pin, on the one hand, and the opposite opening sides of a number of adjacent links, on the other, an intermediate piece with rolling contact action is inserted with a coupling rib for coupling the intermediate piece to the link opening sides, and of which the opposite-lying longitudinal side forms the rolling surface cooperating with the longitudinal side of the pin, the end of each intermediate piece being provided with a recess at right angles to the longitudinal axis running between the longitudinal sides through the coupling rib and opening out into the end face.

Abstract: An endless driving belt of the kind adapted for entrainment between at least two pulleys in a V-belt continuously variable transmission, has a plurality of links; means for connecting each link to a next link to enable articulated movement of the links; a plurality of primary blocks engaging the links and positioned one each between adjacent pins; a plurality of secondary blocks disposed one each between adjacent primary blocks and radially supported by one of the pins to provide a clearance preventing engagement with the links, the primary and secondary blocks being engageable with one another; and, the secondary blocks having side surfaces for engaging the entrained pulleys and the primary blocks having side surfaces adapted to avoid engagement with the entrained pulleys, radially and outwardly directed driving forces being transmitted from a driving pulley to the secondary blocks and from the secondary blocks to the pins, the links being driven only by nonradially directed forces, whereby the radially and

Abstract: A transmission chain for a conical disk transmission with intercoupled links receiving link pins of which the end surfaces bear against the disks, and in which the contact zones between the longitudinal sides of the pins and the links are shorter than the upright sides of the link openings and offset in longitudinal direction of the links with respect to the ends of these sides.

Abstract: A variable ratio transmission apparatus for converting an input torque at a first RPM to an output torque at a second RPM includes a pair of driving discs disposed on an input drive shaft and in spaced parallel ralationship thereto, a pair of driven discs disposed on an output drive shaft and a continuous length of metal link chain extending around and in direct contact with each pair of discs so as to create a high frictional force at the discs and chain interface sufficient to transmit motion from the driving discs to the driven discs. The link chain is arranged as a continuously repeating pattern wherein each pattern includes three generally triangular link plates of a clustered configuration which are interconnected by pins disposed in a first row and a plurality of U-shaped drive members connected to the link plates by pins disposed in a second row.