Abstract:
A brake piston is described. The brake piston is configured for use in a disk brake system, the piston comprising: a body having an outside width perpendicular to a central axis; a footing disposed at a distal end of the piston; wherein the footing is configured to exert force on a brake pad during actuation of the disk brake system; the footing having a face configured to contact the brake pad, the face having a length and a width, wherein the length is longer than the outside width of the body, and the length is greater than the width.
Abstract:
A motor assembly having a brake device and a downsized cooling system is provided. The motor assembly comprises a drive motor, a brake device that stops rotation of a motor shaft, and a casing that holds the drive motor and the brake device. The motor assembly further comprises a hollow passage formed in the motor shaft to allow cooling medium to flow therethrough, a centrifugal passage formed in the brake rotor from the hollow passage to an opening of the brake rotor, and a return passage that returns the cooling medium discharged from the opening to the hollow passage.
Abstract:
A dynamic drag for a fishing reel. The drag has a brake rotor and a brake pad moveable into engagement with the rotor, and a pivotally mounted eccentric engaging the brake pad to force it frictionally against the rotor. In one embodiment the eccentric is axially eccentric and has a pivotally mounted "pie" section "ramp", whereby lever actuation of the ramp rotates it against the rotor with increasing force.
Abstract:
A clutch-brake interlocking mechanism interlocks a brake with a clutch to prevent the brake and the clutch from being disengaged simultaneously so as to prevent a vehicle from inadvertently moving on a slope. The interlocking mechanism includes: (a) a friction clutch 10 including a drive-side member 11 and a driven-side member 12, wherein the drive-side member 11 and the driven-side member 12 are engaged when the drive-side member 11 is pressed toward the driven-side member 12; (b) a friction brake 20 including a brake member 22 (and 23) and a brake disk 21, wherein the brake member 22 and the brake disk 21 are engaged when the brake member 22 is pressed toward the brake disk 21; and (c) a coupling member 30 for pressing the drive-side member 11 and the brake member 22. The coupling member 30 is pivotable and has a structure such that when the coupling member 30 is pivoted to a first position, the drive-side member 11 is fully pressed while the brake member 22 is not pressed, when the coupling member 30 is pivoted to a second position, the drive-side member 11 is not pressed while the brake member 22 is fully pressed, and when the coupling member 30 is pivoted between the first position and the second position, both the drive-side member 11 and the brake member 22 are halfway pressed.
Abstract:
The horizontally rotatable upper section of a mobile crane is swingable in opposite directions by a speed reducer which is driven by a selectively operable reversible variable speed hydraulic motor. A fail-safe spring-loaded hydraulic brake located on the speed reducer operates, when needed, to slow or stop or prevent rotation of the upper section. A hydraulic control system which supplies pressurized hydraulic fluid to operate the motor and the brake includes a pedal-operated master brake cylinder for selectively applying the brake when the motor is in operation. The brake comprises a cylinder housing, an outer brake piston axially movable through a hole in the housing, and an inner brake piston axially movable in a bore in the outer brake piston. Each piston has an extended position and a retracted position. These pistons are movable alternately to extended (brake-apply) position to force a movable brake plate into frictional engagement with a brake disc which is mounted on and rotatable with a motor-driven input shaft of the speed reducer. A main biasing spring is provided to bias the outer brake piston into extended brake-apply position before the hydraulic motor is turned on and any time a selector valve is opened to dump pressurized fluid from a reservoir. An auxiliary spring is provided to bias the inner brake position into retracted position. The hydraulic control system is operable to start the motor and to supply fluid to shift the outer brake piston to retracted brake-release position. The pedal-operated master brake cylinder is then operable, if needed, to supply fluid to shift the inner brake piston to extended brake-apply position even though the outer brake piston is still retracted.
Abstract:
A cable operated rear bicycle brake mounted with a sprocket wheel wherein a ratchet and pawl mechanism is provided between a hub barrel and the sprocket wheel, the rotation of the hub barrel being effected by the direction of the rotation of the sprocket wheel. Instead of an internal shoe brake mechanism, the rear brake utilizes a disc brake mechanism provided between the hub barrel and a brake cone member to brake a bicycle efficiently.
Abstract:
A disc brake including a brake lever, a cylindrical cam member rotatably supported in a mounting hole and connected to the brake lever, a push rod reciprocably disposed in a bore which opens to and extends transverse to the mounting hole, and a connecting member extending between a cam groove formed in the cam member and a recess formed in the push rod to convert the rotational movement of the cam member into linear movement of the push rod. A connecting member receiving groove is formed contiguous to the cam groove in the cam member to allow the connecting member to be received wholly with the outer periphery of the cam member during assembly.