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Brake disc for automotive disc brake assembly
There is provided a brake disc in a disc brake for a vehicle, which can be manufactured lightweight, suppress the thermal deformation and is effective to prevent the brake noises. This brake disc ( 2 ) is supported by a wheel 4 through a plurality of support members ( 10 ) and is operable to exert a braking force when sandwiched by frictional pads ( 8, 8 ). The brake disc ( 2 ) has an outer peripheral face ( 2 b ) formed with a plurality of outer recesses ( 11 ) deploying in a circumferential direction. Accordingly, the radial width (f) of the braking surfaces ( 9 ), with which the frictional pads ( 8 ) is engageable, varies in a direction circumferentially thereof.

Multi-disc brake with fixed center brake pad assembly
The invention provides a multi-disc brake for a vehicle having a knuckle for supporting a wheel of a vehicle and a hub mounted for rotation on the knuckle about a rotation axis. The multi-disc brake also includes a pair of discs mounted for rotation with and sliding movement on the hub along the rotation axis. Each disc includes inboard and outboard engaging surfaces. The multi-disc brake also includes a plurality of brake pad assemblies disposed in alternating arrangement between the discs. The multi-disc brake also includes a caliper disposed for sliding movement relative to the knuckle and having an inboard wall and a bridge portion extending from the inboard wall around the discs and the brake pad assemblies to an outboard wall adjacent to the outboard brake pad assembly. An actuator is disposed between the inboard wall of the caliper and the inboard brake pad assembly for urging the inboard brake pad assembly and the inboard wall apart to urge the brake pad assemblies and the discs together to slow rotation of the hub. The multi-disc brake also includes a guide fixed relative to the knuckle for guiding sliding movement of the inboard brake pad assembly and the outboard brake pad assembly wherein the center brake pad assembly being fixed to the guide for limiting taper of the brake pad assemblies.

Pneumatically or electromotively operable disc brake
A pneumatically or electromotively operable disc brake, including a brake caliper that straddles a brake disc, at least one brake application device for tensioning the brake disc by way of a displaceably guided element, particularly a cross member. The displaceably guided element has at least one threaded borehole into which an adjusting spindle is screwed. This adjusting spindle supports a pressing piece by which a brake pad can be pressed against the brake disc. A wear adjusting device is provided for resetting the clearance and is actively connected to the adjusting spindle. A securing element acts upon the adjusting spindle, thus preventing turning up to a specified torque. The securing element is provided in the form of a spring clip with at least one or more spring saddles, which are distributed over the periphery and which rest in a frictional contact against the adjusting spindle outside the internal thread of the displaceably guided element.

Disk brake apparatus
Axial grooves 8 e and circumferential groove 8 f intersecting with he axial grooves are provided in a cylinder bore 8 e . A fixed-side cam plate 12 has anti-rotation projections 12 c , which are projected from the fixed-side cam plate 12 and inserted into the axial grooves 8 e , and fastening grooves 12 d , which are formed at circumferential areas of the bottom side of the fixed-side cam plate 12 at a circumferential side of each of anti-rotation projections 12 c . The housing 16 has engagement ribs 16 e which are projected from the housing 16 to be engaged with the axial grooves 8 e , and fastening pieces 12 f , which are formed at a circumferential side of each of the engagement ribs 16 e , the fastening pieces 12 f being fitted in the fastening grooves 12 d.

Brake for composite rim
A brake includes two rockers, two shoes attached to the rockers and two linings attached to the shoes. The brake pinches a rim without overheating the rim. The rim includes two walls and a bridge. Each of the walls includes a first portion within the bridge, a second portion beside the bridge so that the bridge performs as a heat sink and supports the second portion and a third portion beyond the bridge in order to clamp a tire. The two linings pinch the second portions of the walls. An anchor attaches the top of each of the shoes to the related rocker and is vertically spaced from the linings.

Wheel assembly of luggage
A wheel assembly for a luggage includes switch member provided on a base of the wheel assembly at a fixed location. The switch member is connected to a driven shaft, and the driven shaft is connected to a brake member. The brake member has a stop portion associated with a wheel. When the switch member is moved, the brake member is moved proximal to or distal to the wheel via the driven shaft so as to brake or release the wheel.

Disc brake
A disc brake ( 10 ) is described, comprising a brake disc ( 12 ) and two brake shoes ( 20 ), which are pressable against both sides of the brake disc ( 12 ) and which in relation to a peripheral force (C′) generated upon application of the brake shoes ( 20 ) against the brake disc ( 12 ) are supported against a vehicle-fixed carrier ( 14 ). The disc brake ( 10 ) moreover comprises at least one device ( 34 ) for measuring and/or converting the peripheral force (C′), which device is disposed in a force transmission chain between the brake shoe ( 20 ) and the carrier ( 14 ). A force transmission member in the form of e.g. a swivel element ( 30 ) is disposed between the brake shoe ( 20 ) and the device ( 34 ) for measuring and/or converting the peripheral force (C′) and is movable under guidance parallel to the brake disc ( 12 ).

Braking stroke simulator
The present invention is directed to a braking stroke simulator for use in a brake system, which comprises a simulator piston moved in response to operation of a manually operated braking member, and an elastic element for providing a stroke to the simulator piston in response to braking operation force applied to the manually operated braking member, wherein restoring amount of the elastic element is restricted to set an initial load to be applied thereto. The elastic element includes a first elastic member made of rubber, and a second elastic member made of a helical spring, which is disposed in series with the first elastic member. The initial load applied to the first elastic member and the initial load applied to the second elastic member are set to be substantially equal to each other.

Impact absorber
An impact absorber is provided for absorbing impact forces especially in case of a collision of a motor vehicle. The impact absorber includes an inner tube ( 1 ), which can be pushed into an outer tube ( 2 ) in a telescopic manner and which is closed with a bottom plate ( 3 ) at its free end projecting from the outer tube ( 2 ). Starting from the bottom plate ( 3 ) in the direction of the longitudinal axis ( 4 ) of the impact absorber, a gas space ( 5 ) filled with pressurized gas and a first, a fluid-filled liquid space ( 7 ), which is separated from the gas space ( 5 ) by a wall ( 6 ) displaceable in the inner tube ( 1 ), are arranged in the interior of the inner tube ( 1 ). The liquid space ( 7 ) is in connection through a throttle element with a second, fluid-filled liquid space ( 13 ), which adjoins the first liquid space ( 7 ) in the direction of the longitudinal axis ( 4 ) and is closed by a piston ( 9 ) fixed in the outer tube ( 2 ) towards the free end of the outer tube ( 2 ) in a liquid-tight manner.

Low impact gas spring
A gas spring with a piston rod assembly received for movement between retracted and extended positions in a casing defining a main gas chamber. The piston rod assembly when in its extended position cooperates with a portion of its retainer and the casing to at least in part provide a secondary gas chamber separate from the main gas chamber and having gas trapped therein at a higher pressure than that of gas in the main gas chamber to reduce the force required to initially move the piston rod assembly from its fully extended position toward its retracted position.