The present invention provides a single-point reinforcing structure for spoke of bicycle rim which includes a left side wall and a right side wall continuously extending along a circumferential direction of the bicycle rim. The left side wall and right side wall are formed at the left side and the right side of the bicycle rim respectively and are symmetrical to each other. A surface of the left side wall and a surface of the right side wall opposite to each other are connected through a connecting wall. The upper ends of the left side wall and the right side wall extend upward toward a direction close to a symmetry axis and are connected. The left side wall, the right side wall, and the connecting wall are surrounded to form an upper cavity of the bicycle rim. A plurality of connecting holes are arranged on the upper cavity.

In one aspect, a wheel hub apparatus including a wheel hub that is rotatable about a central axis and has a unitary, one-piece construction. The wheel hub apparatus further includes a circular brake element having a unitary, one-piece construction and extending about the wheel hub. The wheel hub and the circular brake element include engaged portions securing the wheel hub and the circular brake element together. The engaged portions of the wheel hub and the circular brake element fix the circular brake element against axial movement along the wheel hub. In this manner, the engaged portions of the wheel hub and the circular brake element provide a mechanical joint that connects the wheel hub and the circular brake element using the material of the wheel hub and the circular brake element.

A wheel caster comprising a roller, and a two piece socket, wherein the two piece socket comprises a top housing, having a concave cavity to accept the roller in a freely rotatable configuration, a stem, to be inserted inside a leg of an object, and a bottom housing comprising an opening to allow a portion of the roller to extend below the bottom housing allowing the roller to contact a surface.

A method for producing a product (200, 300, 400) comprising a composite fiber part (202, 402) and a second part (201, 401), wherein the second part (201, 401) comprises a carrier part (203, 403), wherein the carrier part (203, 403) is a replica of a press tool (301a, 301b) configured to be heated and to apply a pressure, comprising the steps of: applying (101), in a non-cured state, the composite fiber part (202, 402) on the carrier part (203, 403); arranging (103) the carrier part (203, 403) comprising the composite fiber part (202, 402) on the press tool (301a, 301b); curing (104a) the composite fiber part (202, 402) on the carrier part (203, 403); and removing (105) the product (200, 300, 400) from the press tool (301a, 301b), wherein after removal from the press tool (301a, 301b) the composite fiber part (202, 402) and the carrier part (203, 403) constitutes together at least a part of the finished product (200, 300, 400). Also disclosed is a composite fiber product comprising a composite fiber part and a second part.

A castor suspension system for suspending a first castor at a patient support device is provided. The castor suspension system comprises a pivoting suspension link pivotably attachable to the patient support device, and a springy element comprising a leaf spring made of a band deformed such that the band makes at least one U-turn so that the band has a first leg and at least one second leg. One of the first leg and the at least one second leg is provided with a first support portion supported on the pivoting suspension link, and the other of the first leg and the at least one second leg is provided with a second support portion for supporting the springy element with respect to the patient support device such that the springy element is configured to provide a pre-stress force to the pivoting suspension link.

The present invention regards a group for supporting and tightening a rim of or for a tired wheel, and such group includes a base, a wheel-holder table, an upright or column projecting upward from the base and supporting at the top the wheel-holder table, a shaft or pin mounted in or alongside the upright or column, a sleeve element or ring nut element constrainable or mountable on the shaft or pin and means for the relative movement of the shaft or pin and of the table.

A quick-release structure has: a shaft lever having a shaft lever external thread at one end thereof and a shaft lever internal thread at the other end thereof; a fixed seat sheathed on the shaft lever in a non-rotatable manner relative to each other. The fixed seat has an annular fixed seat engaging tooth on one end face thereof; a movable seat having an axially penetrating perforation, wherein the movable seat has an annular movable seat engaging tooth on one end face thereof, and the movable seat engaging tooth faces the fixed seat engaging tooth of the fixed seat; a spring abutting between the fixed seat and the movable seat; a spanner rod having a pivoting hole; and a connecting shaft, one end of which abuts on the spanner rod, and the other end of which has a connecting shaft external thread.

A hub structure includes an axle housing, a hub having an insertion hole in a vehicle width direction through which the axle housing is inserted, and an inner bearing disposed between the hub and the axle housing in the insertion hole and rotatably supporting the hub with respect to the axle housing, and an oil seal disposed between the hub and the axle housing in the insertion hole on an inner side relative to the inner bearing in the vehicle width direction. A spacer is provided between the inner bearing and the oil seal in the insertion hole. The spacer has an outer end surface that is contactable with an inner end surface of an inner race of the inner bearing.

A tire rim structure including an annular inner ring provided on the inner ring of a tire body and a circular outer ring provided on the outside of the tire body, fixedly connected to the annular inner ring, and formed by stamping. The annular inner ring includes an annular inner ring body formed by extrusion, an annular left ring provided at one side of the annular inner ring body and formed by extrusion, and an annular right ring provided at the other side of the annular inner ring body, connected to the circular outer ring, and formed by extrusion. A shaft hole is provided at the middle part of the circular outer ring.

A dual plunging constant velocity (CV) drive shaft is provided for communicating rotational forces from a transaxle to a drive wheel of a vehicle. The dual plunging CV drive shaft comprises a drive shaft that transfers torque from the transaxle to the drive wheel. An inboard plunging CV joint is coupled between the transaxle and the drive shaft, and an outboard plunging CV joint is coupled between the drive shaft and the drive wheel. The inboard and outboard plunging CV joints each comprises an elongate housing that receives a CV joint coupled with the drive shaft. The inboard and outboard plunging CV joints communicate rotational forces from the transaxle to the drive wheel during vertical pivoting of a trailing arm coupled with the outboard plunging CV joint. The elongate housings allow the drive shaft to float longitudinally, as needed, during extreme pivoting motion of the suspension.