Provided is a plastic injection-molding method for producing a poly-V belt pulley, which has an outer ring, an inner ring, and a ring web, which connects the outer ring to the inner ring and has a plurality of radially oriented ribs. The injection molding occurs in a circular-ring-shaped injection-molding cavity, a poly-V-ribbed inner shell of which is formed by a plurality of radially movable slides and which is vented during the injection molding by the gaps between the slides adjacent to each other. The rib contour in the injection-molding cavity are designed in such a way that the plurality of ribs is formed of a first group of thin ribs and a second group of thick ribs and that the gaps extend in radial extension of the thin ribs, the width of which is significantly less than the width of the thick ribs, which extend circumferentially between the gaps.

A lifting container power generating device using a flexible guidance system includes a power source section, a power transmission section and an electrical section. The power source section includes a slide recess base electrically connected to a top portion of a flexible lifting container. A body is connected to the slide recess base through a linear bearing. A fixed roller and a sliding roller on the body are symmetrically disposed at two sides of a guide wire rope. Under the combined action of a preloaded spring and a tension spring, the fixed roller and the sliding roller jointly press tightly against the guide wire rope. The power transmission section includes an electromagnetic clutch axially connected to the fixed roller, and an electromagnetic clutch pulley connected to a power generator pulley via a V-belt. The power source section includes an electrical cabinet connected to the electromagnetic clutch, a power generator and a battery of the flexible lifting container. The power generating device provides the battery of the lifting container with power during an operation of the flexible lifting container, solving issues of safety risks caused by current periodical replacement and charging of a battery of the flexible lifting container.

A lifting container power generating device using a flexible guidance system includes a power source section, a power transmission section and an electrical section. The power source section includes a slide recess base electrically connected to a top portion of a flexible lifting container. A body is connected to the slide recess base through a linear bearing. A fixed roller and a sliding roller on the body are symmetrically disposed at two sides of a guide wire rope. Under the combined action of a preloaded spring and a tension spring, the fixed roller and the sliding roller jointly press tightly against the guide wire rope. The power transmission section includes an electromagnetic clutch axially connected to the fixed roller, and an electromagnetic clutch pulley connected to a power generator pulley via a V-belt. The power source section includes an electrical cabinet connected to the electromagnetic clutch, a power generator and a battery of the flexible lifting container. The power generating device provides the battery of the lifting container with power during an operation of the flexible lifting container, solving issues of safety risks caused by current periodical replacement and charging of a battery of the flexible lifting container.

A continuously variable transmission 1 includes: a primary pulley 20 including a nipping groove 22 receiving a V belt 12 wound across pulleys, the primary pulley 20 including a fixed half pulley 21 having a back side, opposite to the nipping groove 22, provided with a hollow part S; and a reinforcing member 41 having a center hole receiving a driving shaft 11 and tapering from an outer circumference side toward an inner circumference side to have an annular conical shape. The reinforcing member 41 has an outer circumference side end portion 41a brought into contact with and attached to an outer circumference side end surface Sa of the hollow part S and has an inner circumference side end portion 41b attached to an inner circumference side end surface Sb of the hollow part S via a holding member 42 having a wedge-shaped cross section.

A continuously variable transmission 1 includes: a primary pulley 20 including a nipping groove 22 receiving a V belt 12 wound across pulleys, the primary pulley 20 including a fixed half pulley 21 having a back side, opposite to the nipping groove 22, provided with a hollow part S; and a reinforcing member 41 having a center hole receiving a driving shaft 11 and tapering from an outer circumference side toward an inner circumference side to have an annular conical shape. The reinforcing member 41 has an outer circumference side end portion 41a brought into contact with and attached to an outer circumference side end surface Sa of the hollow part S and has an inner circumference side end portion 41b attached to an inner circumference side end surface Sb of the hollow part S via a holding member 42 having a wedge-shaped cross section.

A high torque sprocket includes a body defining an outer periphery and a hub section defining an inner surface for engaging a bushing. A continuous toothed structure is disposed on the outer periphery of the body, and a textile reinforcement embedded in the body adjacent the inner surface of the hub section. The body is formed of a castable polymer material. In some cases, one or two optional flanges are disposed on side(s) of the body immediately adjacent the continuous toothed structure, in some aspects, a textile reinforcement may be embedded in a surface of the flange(s) immediately adjacent the continuous toothed structure. In some aspects, the high torque sprocket further includes a textile reinforcement embedded in the continuous toothed structure outer surface, and the textile reinforcement is selected from nylon, cotton, aramid, PTFE, and mixtures thereof.

The present invention relates to relates to an improvement of a dividing wall for a primary pulley in a belt-type continuously variable transmission. It is an object of the present invention to obtain a desired strength characteristic without performing a soft nitriding treatment and achieve cost reduction. A hydraulic pressure chamber is formed between the dividing wall and the movable sheave, and the dividing wall comprises a small-diameter annular disc portion 32 extended from the central cylinder portion 30, which is attached to a rotational shaft, in a radial direction. In the small-diameter annular disc portion 32, a connecting portion which is connected to an intermediate body portion 34 is a bent portion 38 which is bent at substantially 90 [deg]. In a cross-section of an inner peripheral surface of the bent portion 38, the inner peripheral surface of the bent portion 38 is constituted by an inner radius side arc 40-1 whose origin position is O.sub.1 and curvature radius is R.sub.1, an outer radius side arc 40-2 whose origin position is O.sub.2, which is a different position from the origin position O.sub.1 of the inner radius side arc 40-1, and curvature radius is R.sub.2, which is a different value from the curvature radius R.sub.1 of the inner radius side arc 40-1, and an intermediate portion 40-3 that the inner radius side arc 40-1 is smoothly connected to the outer radius side arc 40-2. By adopting the above shape, when a load is applied to the dividing wall, a stress value at a concave surface 40 can be reduced, and desired durability can be obtained without performing the soft nitriding treatment and achieve cost reduction.

The present invention relates to relates to an improvement of a dividing wall for a primary pulley in a belt-type continuously variable transmission. It is an object of the present invention to obtain a desired strength characteristic without performing a soft nitriding treatment and achieve cost reduction. A hydraulic pressure chamber is formed between the dividing wall and the movable sheave, and the dividing wall comprises a small-diameter annular disc portion 32 extended from the central cylinder portion 30, which is attached to a rotational shaft, in a radial direction. In the small-diameter annular disc portion 32, a connecting portion which is connected to an intermediate body portion 34 is a bent portion 38 which is bent at substantially 90 [deg]. In a cross-section of an inner peripheral surface of the bent portion 38, the inner peripheral surface of the bent portion 38 is constituted by an inner radius side arc 40-1 whose origin position is O.sub.1 and curvature radius is R.sub.1, an outer radius side arc 40-2 whose origin position is O.sub.2, which is a different position from the origin position O.sub.1 of the inner radius side arc 40-1, and curvature radius is R.sub.2, which is a different value from the curvature radius R.sub.1 of the inner radius side arc 40-1, and an intermediate portion 40-3 that the inner radius side arc 40-1 is smoothly connected to the outer radius side arc 40-2. By adopting the above shape, when a load is applied to the dividing wall, a stress value at a concave surface 40 can be reduced, and desired durability can be obtained without performing the soft nitriding treatment and achieve cost reduction.

A V-belt pulley includes a plurality of rib guides projected along a circumferential surface of the V-belt pulley; and an alignment corrector that moves a V-belt in a direction towards an inside of the V-belt pulley when a rib of the V-belt is positioned outside of an outermost rib guide of the plurality of rib guides.

A V-belt pulley includes a plurality of rib guides projected along a circumferential surface of the V-belt pulley; and an alignment corrector that moves a V-belt in a direction towards an inside of the V-belt pulley when a rib of the V-belt is positioned outside of an outermost rib guide of the plurality of rib guides.