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Class 188/330 - Rotary cam abutting shoe ends


Subclass of Class 188 - Brakes
Definition: Device wherein shoe movement is effected by rotation of
No. of patents: 41
Last issue date: 10/26/2010


1    
NumberTitleIssue Date
7819231S cam bushing assembly
A support assembly for supporting a S cam, the S cam being an intermediary device between a brake actuator and a set of wheel brakes and is generally an elongate metal rod shank having an S-head at one end and a set of splines at the other end, the S-head having at ...
10/26/2010
7360631Apparatus for operating parking brake
An apparatus for operating a parking brake that can reduce an operation stroke. A connecting member has shoe insert grooves with brake shoes inserted into both sides thereof. A first operation lever has one end rotatably combined with one side face of the connecting...
04/22/2008
7273026Roller follower body
The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i...
09/25/2007
7175009Cam actuated drum brake
A cam for a brake is provided that allows for greater brake shoe travel and thicker brake linings while providing the same or greater mechanical force as compared to conventional cams. One or more lobes of the cam include multiple portions having varying profiles in...
02/13/2007
7114596Brake shoe proximity sensor
A brake system with an integral proximity sensor for providing an indication of a condition of the brake system. The brake system includes a brake drum, a brake shoe, a brake pad, and a position sensor. The brake pad is connected to a pad mounting surface of the bra...
10/03/2006
7055662Vehicle axle beam and brake assembly
An improved axle beam and self-contained drum brake assembly, particularly for heavy duty trucks, is disclosed. The assembly includes a brake spider and actuating members mounted thereto via a mounting assembly comprising a mounting sleeve attached to the brake spid...
06/06/2006
7044275Drum brake device
In a drum brake device having a shoe drive cam, the braking force of which is mechanically controlled according to a reaction force acting on an anchor pin by a brake shoe, the cam plate 76 pivotally supported by the anchor pin 10 and the lever plate
05/16/2006
6811165Brake structure of skateboard
A brake structure of a skateboard including: a casing having a cavity with an opening facing outward, the casing being fixedly disposed on an inner side of one end of the wheel shaft of the skateboard; two brake members pivotally connected in the cavity and movable ...
11/02/2004
6648111Positive rotating anchor pin
A brake assembly is provided having a brake spider with a hole. An anchor pin is supported within the hole and includes end portions extending from the spider. The end portion has a first interlocking profile, which may be a recess or flat in the outer cy...
11/18/2003
6622828Cam bushing for cam braking system
A cam bushing assembly for supporting a camshaft in a cam braking system on a vehicle has a bushing retainer removable from a brake spider, and a bushing removable from the bushing retainer. The bashing retainer is bolted to the brake spider and can be re...
09/23/2003
6612390Steer knuckle with integrated cam support
A steer axle for a heavy duty vehicle is provided including an axle assembly having an axle housing. A steer knuckle is connected to an end portion of the axle housing by king pins. The steer knuckle rotates relative to the axle housing about the king pin...
09/02/2003
6581728Brake shoe proximity sensor
A brake system with an integral proximity sensor for providing an indication of a condition of the brake system. The brake system includes a brake drum, a brake shoe, a brake pad, and a position sensor. The brake pad is connected to a pad mounting surface...
06/24/2003
6360859Device and method in braking systems for motor vehicles
Brake systems are disclosed for use in motor vehicles comprising a brake cylinder including a push rod, a brake key for activating a wheel brake on the motor vehicle, a braking lever having a first end for connection to the brake key and a second end for ...
03/26/2002
6237732Bushing boot for a cam braking system
A bushing boot for a cam braking system is disclosed that snaps in place over a bushing assembly. The bushing assembly supports a camshaft in the cam braking system. The bushing boot is preferably generally cylindrical having a first end, a second end and...
05/29/2001
6131710Brake shoe anchor pin
A pin is used to anchor an end of a brake shoe to a boss in a brake spider. The brake shoe has a pair of spaced apart ribs, each of the ribs having an aperture at an end thereof. The pin is a two-piece assembly with first and second elongate members. A fi...
10/17/2000
5992586Edge-relieved cam break roller
An improved roller for a cam actuated brake system includes rounded edges for contacting the cam. In the prior art, a sharp edge was sometimes damaged when force inequalities were applied from the shoe to the roller. The present invention rounded edges en...
11/30/1999
5964325S-cam brake bushing cartridge
An improved bushing assembly for the inboard end of a brake cam shaft is provided with a bushing which establishes a grease flow pathway within the bushing assembly. Grease enters a cavity formed from a pair of housing halves which contain the bushing thr...
10/12/1999
5887687Brake assembly
A brake assembly for vehicles has a back plate with brake shoes and actuating members mounted thereto. A cam shaft and cam member are disposed through a radial extension on the back plate, such that when a brake pedal is depressed an actuator shaft is mov...
03/30/1999
5649612Brake bracket assembly
An improved bracket member for a vehicle brake system is disclosed. The bracket member has a wing bracket at one end for mounting of a brake actuating mechanism and a mounting plate at the opposite end for connection to the spider of the brake assembly. A...
07/22/1997
5524735Brake actuator assembly including twin cam members
A brake actuator assembly is disclosed for expanding internal shoe brakes in which a pair of brake shoes (17) are disposed within a brake drum (11). A pair of cam members (33,35) are fixed to a pair of cam shafts (41,43) and are operable to engage the bra...
06/11/1996
5386891Mechanism for controlling the raising and lowering of a door
A mechanism for controlling the raising and lowering of a door comprising a speed reduction gearing, a high speed input shaft and a low speed output shaft connected to the gearing, and a governor mounted on the input shaft for regulating the input shaft's...
02/07/1995
5255763Brake cam roller follower bracket
A roller follower (12) and bracket (20) combination for use in a rotary cam type brake shoe assembly (100) is provided in which bracket (20) is supported on a web (2) of a brake shoe in such a manner that, when a free-end (27) of bracket (20) is inserted ...
10/26/1993
5044475Rotary drum brake assembly bracket
An anchor collar or bracket (100) is provided that is adapted to fit loosely about a shaft (34) of a rotary drum brake assembly such as assembly (200). Bracket (100) is adapted to secure at least one pair of resilient biasing members such as coiled spring...
09/03/1991
4981200Brake having anchor bearing on immovable spider
An improved "expanding-shoe" drum brake (100), including an immovable spider member (38) to which brake shoes (18, 19) are pivotally mounted to move into engagement with a rotating annular brake drum (10). As is common, the shoes move in response to motio...
01/01/1991
4936426Brake assembly
A brake assembly, for a vehicle axle having a beam, including a spider mounted on the beam, a camshaft mounted on one end of the spider, a pair of anchor pins mounted on an opposite end of the spider, and a pair of brake shoes. Each of the brake shoes has...
06/26/1990
4932505Roller body for brake shoe actuator cam
A roller body for providing a brake shoe actuator, in a heavy-duty air brake assembly in which the braking effect is achieved by the movement of a cam which pushes on a brake shoe by rolling forcefully against the roller body which is revolvably carried b...
06/12/1990
4907678Air chamber mounting bracket
A cam actuated drum-type brake having an improved mounting arrangement for the power unit that actuates the brake. The actuator for the brake includes a camshaft rotatably journaled within a tube that is affixed to the backing plate and to which is affixe...
03/13/1990
4858730Vehicle brake support
A stamped metal plate for supporting a brake assembly on a vehicle axle which includes a substantially planar and circular mounting portion, diametrically opposed, planar first and second support portions substantially parallel to and offset in opposite d...
08/22/1989
4858729Brake support assembly
A brake spider for supporting a brake assembly on a vehicle axle which includes a mounting portion and diametrically opposed, first and second support portions, a pair of laterally spaced bores through the second support portion and mounting a pair of anc...
08/22/1989
4854427Vehicle axle and brake support assembly
A stamped metal plate supports a brake assembly on a vehicle axle. The plate includes a planar and circular mounting portion having a circular aperture pressed on and welded to the axle, diametrically opposed, planar first and second support portions subs...
08/08/1989
4844211Quick connect and disconnect yoke assembly
A brake actuating lever is connected to a fluid actuator through a thrust rod extending from the fluid actuator and a yoke pivotally mounted on the lever. An adaptor is movable along the thrust rod and is received within the yoke when the rod and yoke are...
07/04/1989
4807729Brake roller retainer
An "H" shaped retainer (60) is provided for retaining trunnions (42) of a brake cam follower roller (18) in open-sided bearing surfaces (20) at the end of spaced-apart webs (34) extending from a brake shoe (8). Retainer (60) features a bridging portion (2...
02/28/1989
4624348Roller retainer for brake assembly
A roller retainer for a cam actuated vehicle brake assembly comprising a member preferably formed from spring wire to provide two substantially parallel legs with a tang at the end of each leg and a manual grip intermediate the legs. The tangs are seated ...
11/25/1986
4518063Automatic slack adjuster
An automatic slack adjuster having compression force transmitting elements of adjustable length mounted between a key and a pair of brake shoes is provided with a wheel journalled on the key shaft and at one side in tooth engagement with parts of the forc...
05/21/1985
4503953Roller retainer for brake assembly
A roller retainer for retaining a cam following roller in a pair of laterally aligned open-ended recesses provided at adjacent ends of a pair of axially spaced brake shoe webs comprising a length of spring wire formed to provide a pair of spaced substanti...
03/12/1985
4501434Vehicle for a fun-fair or the like
The vehicle comprises an element which forms a wheel, preferably a sphere 11 having an outer bearing surface and an inner bearing surface and, inside the wheel 11, an element which forms a preferably hemispherical car 1 for at least one passenger, said ca...
02/26/1985
4494633Automatic braking-gap adjuster system for mechanical drum brakes
An automatic braking-gap adjuster system for a mechanical drum brake which has a pair of brake shoes pivotally mounted at one end on a back plate. A cam member is located between the free ends of the brake shoes. The cam member, actuated through a brake a...
01/22/1985
4452347Brake spider
A spider for a brake having dual web brake shoes to be utilized at the wheel end of a heavy duty truck or trailer axle includes a pivoting end support plate mounted at a hole therethrough at a first axial location on the axle to extend radially outwardly ...
06/05/1984
4353442Brake shoe and brake assembly for automotive vehicles
The present invention relates to a brake shoe and brake assembly for automotive vehicles, comprising a pair of brake shoes (14) having ends pivotably mounted on a brake spider (12), and a actuator cam (26) located between the opposite ends of the brake sh...
10/12/1982
4337851Brake support assembly
A brake support assembly to be mounted on a vehicle axle housing for supporting a brake shoe assembly and an actuator therefor comprising a backing plate adapted to be fixedly mounted on a vehicle axle housing and two anchoring plates removably attached t...
07/06/1982
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