Abstract: A bicycle handbrake operating device is provided. The present invention utilizes a roller wheel to pull the brake wire so as to generate a longer pulling distance and to reduce the exerted force as well. The roller wheel is installed inside the handbrake operating device, and the brake wire goes around the roller wheel. When the operating lever is gripped, the brake wire slides along the roller wheel to achieve a longer pulling distance; the roller wheel's self rotation also reduces the exerted force. Additionally, the brake wire almost always remains a straight line during the pull, which makes the operation of the handbrake operating device smooth and the brake wire would undergo minimum wearing.

Abstract: An embedding typed handbrake operating device is disclosed herein, which mainly contains a positioning seat to which an operating lever is pin-joined. A stopping ring, a spring, and a locking seat are sequentially joined to the positioning seat through a locking bolt. The brake sleeve of a brake cable is threaded into the tubular body of the end section of the handlebar via a cable entrance hole and then into the locking seat. A brake wire is threaded through the operating lever, an axial through hole of the locking bolt, and into the brake sleeve connected to the locking seat, and finally to the handbrake assembly.

Abstract: A rear wheel synchronous brake system used in a pushcart such as a baby jogging stroller is disclosed to include two rear brakes respectively coupled to the two rear wheels of the baby jogging stroller, a hand control unit mounted on the handle of the baby jogging stroller at the top, and two brake lines coupled between the brake lever of the hand control unit and the two rear brakes for driving the rear brakes to brake the two rear wheels of the baby jogging stroller synchronously when the user pulling the brake lever.

Abstract: A bicycle hydraulic disc brake master cylinder includes a housing having a bar clamp at one end configured for fastening the housing to a bicycle handle bar, the bar clamp receiving the handle bar along a clamp axis. A handle is pivotably connected to the housing to pivot about a pivot axis in operative association with a piston train to impart a drive force on the piston train. The handle defines a finger receptacle receiving at least one finger of a user defining an effective force point at a select distance from a distal end of the handle. A select ideal finger actuation path for the at least one finger of a user begins at a start point at the effective finger force point with the handle at an engagement point where the handle begins to drive the piston train against operative fluid resistance and extends along a line from the start point at a select angle relative to the clamp axis.

Abstract: A master cylinder which has an unusual ability to limit space requirements, to be fitted in vehicles controllable by handlebars, comprises a cylinder body provided with a seat for housing a portion of the handlebar. A chamber for slidably housing a piston extends along an axis inside the cylinder body. A manual control lever which acts on the piston is mounted on the cylinder body for pivoting about its fulcrum in a plane. The axis along which the chamber for slidably housing the piston extends intersects the plane of pivoting of the control lever at a point.

Abstract: A handbrake operating device is provided. The handbrake operating device contains a positioning seat and an operating lever. The positioning seat has a tubular portion on one end for fitting a curved handlebar. The positioning seat has a connection slot on the other end allowing the brake wire to pass through. The handbrake operating device is designed such that the brake wire goes nearly straight between the handbrake operating device and the brake device of the vehicle. As the brake wire is not bended with any abrupt angle and remains in a tensed condition, the brake device of the vehicle would quickly and sensitively respond to the handbrake operating device.

Abstract: A fine adjusting structure for bicycle disc-brake system is disclosed. The disc-brake system comprises a securing seat mounted on to the fork of the bicycle frame and the securing seat being locked with a braking main body having a driving arm, the wheel of the bicycle being mounted with brake disc for the gripping of the braking main body, characterized in that the top and bottom end of the securing seat are respectively protruded out a locking section toward the braking main body and the securing seat is substantially a “C” shaped structure, the top and bottom of the locking section are formed into elongated hole which passes through from top to bottom, the long axis of the elongated hole is extended in the same direction of the wheel axle; and the top and bottom edge of the braking main body are respectively formed into screw holes corresponding to the elongated hole of the locking section of the securing seat.

Abstract: A bicycle disk brake device includes an anchored member secured to a bicycle frame and having a coupling wall, a caliper having two brake linings mounted thereon and a compliant wall compliantly mated with the coupling wall, and a brake disk secured to the bicycle frame and spaced apart from the linings. A tightening member is disposed to displace the compliant wall from a slightly loosened position, where the compliant wall is permitted to angularly displace relative to the coupling wall so as to adjust a position of the linings relative to the disk, to a tightened position, where the compliant wall is prevented from moving relative to the coupling wall. Due to the compliant mating of the coupling and compliant walls, the position of the linings can be adjusted conveniently and precisely.

Abstract: A cam assisted wheel brake for a bicycle comprising two arms mounted on a bolt, which provides a pivot point for the arms and a means for attachment of the brake to the fork of the bicycle. The brake incorporates a cam lever pivotably associated with the first arm and which engages a finger portion of the second arm and which comprising a first portion having a screw passing through a bore, a middle portion having a top edge having a curved edge portion, and a second portion pivotably connected to the first arm by a pin extending therethrough. The invention preferably has a quick release mechanism comprising a lever having a first pin extending therefrom, the pin pivotably engaging a bore in the first arm, and a second pin extending off axis from the first pin and pivotably engaging the second portion of the cam lever.

Abstract: The present invention relates to brakes mounted in particular on all terrain bicycles. It relates, as to the first embodiment, to a brake comprising identical arms (17) mounted freely in rotation on trunnions, carrying for each of the arms (17) at its upper portion a hollow V shaped cam (23) pierced at its middle, the angle of the dihedral of about 90°, the bisecting edge horizontal, which receives a pin (9) carrying a cam finger (21) which acts against the cam (23) to close the brake. The pin (9) is secured to the end (3) of the movable arch (1) which controls the action of the brake with a movement of rotation from holes (4, 5) located in the upper central portion of the arch (1). Compression springs (26) disposed about pins (9) ensure the holding and return of the arms (17) into position.

Abstract: A brake disk assembly for a bicycle has a body, two brake pads and an adjusting device. The body has a slot, and the brake pads are operationally mounted inside the body. The adjusting device is mounted on the body and has two wings, two adjusting plates, a connecting arm, two bolts and a concave-convex configuration. The wings extend from the body. The adjusting plates are attached respectively to the wings. The connecting arm is mounted between the adjusting plates and has two threaded holes defined respectively in two ends of the connecting arm. The bolts extend respectively through the wings and the adjusting plates and are screwed respectively into the threaded holes in the connecting arm. The concave-convex configuration is mounted between the wings, the adjusting plates and the ends of the connecting arm to make the body adjustably connectable with the connecting arm.

Abstract: A disc brake assembly is disclosed which is attachable to the wheel supporting portion of the frame of a cycle and which allows the orientation of the planar braking surface of the brake pad assembly to be infinitely variable within a defined range The disc brake assembly consists of a disc fixedly attached to a wheel, a plurality of brake pad assemblies each having a planar braking surface facing the disc and a caliper retaining the brake pad assemblies in an operative position. When braking occurs, the caliper advances at least one of the brake pad assemblies to bring the planar braking surfaces of the brake pad assemblies into and out of contact with the disc. In addition, means is disclosed for attaching each of the brake pad assemblies to the caliper with an orientation of the planar braking surface of the brake pad assembly being infinitely variable within a defined range.

Abstract: A novel brake assembly is provided for a bicycle. The assembly is composed of an arrangement of a pair of brake pads each connected to a rod member in turn guided for axial movement by a base fixed on the bicycle frame. A bifurcated control cable actuates wedge members causing movement of the pads against a wheel rim. Return springs on the rod members cause the assembly to return to the original non-braking position in response to release of the control cable.

Abstract: A hydraulic brake lever for a bicycle, comprising a main body, a pull handle, and an adjusting mechanism. Thus, the hydraulic brake lever can be operated conveniently and smoothly, thereby facilitating the rider operating the hydraulic brake lever. In addition, the hydraulic brake lever is sensitive, thereby protecting the rider's safety. Further, the operation stroke of the brake can be changed and adjusted conveniently, so as to adjust the sensitivity of the brake to the optimum state.

Abstract: A bike cantilever brake arm having a sleeve fixed to the brake arm through an axle bore provided at the bottom of the brake arm; a scroll section of the rod spring being inserted to a ring provided on one side of the sleeve and covered with a cap; a locking ring is provided on one side of the sleeve to receive insertion of a rubber ring from the opposite side of the adjustment base; a slot and a hooking section being provided on one end of the rubber ring to merely engage the locking ring of the sleeve; another end of the rubber ring extending a retaining edge to retain the adjustment base; and the brake arm, the cap, the rod spring and the adjustment base all being ex-factory made in one piece to keep them integral during transition and the subsequent assembly.

Abstract: A brake pad assembly includes a shank with a brake pad connected to a first end thereof and the shank extends through a support frame, a first positioning member, a brake arm, a second positioning member, a holding member and is threadedly connected to a nut. The first positioning member and the second positioning member are located on two opposite sides of the brake arm and each of which has two lugs which are retained in a hole of the brake arm. By the lugs, the two positioning members can only be rotated at a limited angle in the hole of the brake arm.

Abstract: A apparatus is provided for mounting a brake device to a bicycle frame, wherein the brake device brakes the hub of a wheel that rotates around a hub shaft. The apparatus comprises a fastening bracket, a bracket fastening member, and an insert member. The fastening bracket comprises a base portion adapted to receive the hub shaft therethrough; an arm portion that extends outwardly from the base portion; and a detaining portion having first and second side surfaces disposed on the arm portion for mounting the brake device to the bicycle frame. The bracket fastening member has a detaining space into which the detaining portion is inserted for detaining the fastening bracket to the bicycle frame, and the insert member has first and second contact portions that face the respective first and second side surfaces of the detaining portion when the insert member is disposed in the detaining space.

Abstract: This invention provides one variable leverage V type bicycle brake which includes two swinging arms, two friction bodies, one cable connection part, one brake cable and one adjusting device. One end of each of the two swinging arms is set on the bicycle frame and the other ends of the two arms is set with one swinging arm connection part respectively. Each one of the friction bodies is set at the central section of each swinging arm and one end of the cable connection part is connected to one of the swinging arm connections. One end of the brake cable penetrates the other end of the connection part by connecting to another swinging arm connection, the other end of the brake cable is connected to one brake lever set on the bicycle handlebar, and the adjusting device is set on each swinging arm, so as to vary the direction and position of the swinging arm connection part on the long shaft of the swinging arm to provide a variable leverage with the V type bicycle brake.

Abstract: An anti-lock brake system for a bicycle having sliding assembly (having a brake shoe therein) and a plurality of springs defined in a brake shoe holder in turn, a bottom of the brake shoe holder and a connecting side of the sliding assembly are correspondingly in gradient formed and both of them to be abutted against each other and they are slanted formed outwardly in accordance with the direction of the rotation of the tire of the bicycle. The sliding assembly further includes a plurality of recesses formed therein for receiving sliding members, an abrasion-resistant member disposed at the bottom of the recess of the brake shoe holder.

Abstract: The invention refers to an apparatus for the control of brakes in bicycles and the like, to be used, in particular, for disc brakes mounted on bicycles and comprising a pump able to push fluid into a hydraulic circuit connected to the brake, characterized in that the said pump is held inside the handlebar (2) or a part (3; 21) associated therewith.

Abstract: An auxiliary braking system for supplementing an existing bicycle braking system is disclosed. The brake wire of the auxiliary braking system is removably secured to an existing primary brake wire, so that the actuation of the auxiliary braking system causes the main brake wire to pull and activate the caliper brakes. The interconnection of the auxiliary brake wire to the main brake wire is achieved through a housing joiner which secures the auxiliary brake wire to the top tube of the bicycle frame and a bullet clamp which creates a secure connection between the main brake wire and the auxiliary brake wire.

Abstract: A bicycle dual-brake system is mounted on a front fork and a front wheel hub of a bicycle. The system comprises two units, with one unit being fastened with one front-fork tube and one end of the front wheel hub, with other unit being fastened with other front-fork tube and other end of the front wheel hub. Both units are connected to the same brake lever mounted on a handlebar of the bicycle. Both units are formed of a disc fastened with the front wheel hub, a brake device fastened with the front fork, and a brake cable connecting the brake device to the brake lever.

Abstract: A brake control device is provided for connecting to a hydraulic fluid conduit, wherein the hydraulic fluid conduit has a first end for connecting to the brake control device and a second end for connecting to a braking apparatus. The brake control device comprises a bracket that can be mounted to a handlebar of the bicycle, a brake operating member that is movably coupled to the bracket, and a hydraulic fluid transmission unit disposed on the bracket. The hydraulic fluid transmission unit is structured to communicate a hydraulic fluid to the hydraulic fluid conduit in response to movement of the brake operating member. A joint securing area is disposed on the hydraulic fluid transmission unit, wherein the joint securing area is structured to couple to the first end of the hydraulic fluid conduit. A rotation restrictor is disposed at the joint securing area, wherein the rotation restrictor is structured to restrict rotation of the first end of the hydraulic fluid conduit relative to the joint securing area.

Abstract: A disc brake device for cycles includes a housing having two brake shoes disposed beside a brake disc, an actuating member for operating the brake shoes, and a cam secured to the actuating member. The cam includes an outwardly extended cam, and a brake cable has an inner wire adjustably secured to the lever at different locations or distances relative to the cam, for allowing the inner wire to actuate onto the cam with different torques with the lever. The lever has a number of recessed for adjustably receiving the inner wire which may be secured to the lever with a fastener.

Abstract: An auxiliary braking system for supplementing an existing bicycle braking system is disclosed. The brake wire of the auxiliary braking system is removably secured to an existing primary brake wire, so that the actuation of the auxiliary braking system causes the main brake wire to pull and activate the caliper brakes. The interconnection of the auxiliary brake wire to the main brake wire is achieved through a housing joiner which secures the auxiliary brake wire to the top tube of the bicycle frame and a bullet clamp which creates a secure connection between the main brake wire and the auxiliary brake wire.

Abstract: A brake and lock device includes a lever pivotally connected with a fork of a bicycle, a brake shoe attached to the lever for braking a wheel and a lock attached to the lever for locking the wheel. The lock includes a core for receiving a key and a latch connected with the core for locking the wheel. The core includes a first end for receiving the key and a second end connected with the latch. The first end of the core defines a keyhole. The core includes a mandrel extending from the second end thereof for connection with the latch. The latch defines a recess for receiving the mandrel and two holes in communication with the recess. The mandrel defines a hole. A pin can be inserted through the holes defined in the latch and in the mandrel. The latch may include a protective sleeve mounted thereon. The mandrel can be rotated so that the latch can be pivoted to interfere with spokes of a wheel mounted in the fork.

Abstract: A clamp device having a body made of a pair of half bodies connected and unified with a fixation member. One of friction plate units is elastically pushed by a first spring in a direction parting from a disc and in a rotating direction of the disc simultaneously, and the other of the friction plate units is elastically pushed by a second spring in a direction parting from the disc and in a reverse direction of the rotating direction simultaneously.

Abstract: The invention relates to a brake device for braking a movement of an object by mechanical friction, such as the movement of rails relative to a train, or the rotation of a brake disc or a cycle wheel.

Abstract: A wheel and brake system is provided for a vehicle having a wheel with an inner wheel, an outer wheel generally concentric with the inner wheel, and a plurality of resilient members connecting the inner and outer wheels together for resilient movement therebetween. The brake mechanism has a mounting block adjacent the inner wheel and a lever arm pivotally connected thereto for movement between a braking position and a non-braking position. The lever arm has a cam follower with a cam engaging portion that allows the lever arm to move from its non-braking position toward its braking position which in turn causes movement of the cam follower from a disengaged position toward a wheel-engaging position. The cam follower has a wheel-engaging portion adapted for frictional engagement with the inner wheel when the cam follower is in its wheel-engaging position.

Abstract: A disk brake for a bicycle includes a body having a first portion with a first passage defined in the first portion and a second portion with a second passage defined to correspond to the first passage. A first slot is defined in the body and communicates with the first passage and the second passage. A second slot is defined in an outer periphery of the body and communicates with the first slot. A locking notch is defined in the outer periphery of the body and communicates with the first slot near the second slot. A driving device is mounted in the body. Two brake pads are securely mounted in the first slot. Each brake pad includes an ear extending out to engage the locking notch to prevent the brake pad from rotating during braking.

Abstract: A cable actuated mechanical disc brake caliper includes a caliper housing and a cable guide rigidly fixed to the housing having a cable receiving bore extending along the guide axis for axially receiving a cable. A lever arm is pivotably attached to the caliper housing for pivoting about a pivot axis. The lever arm is operatively associated with the brake pad to move the brake pad between a retracted and an extended position as the lever arm is pivoted in the first direction from a non-actuated position to a fully actuated position. The lever arm has a cable clamp radially spaced from the pivotal attachment for fixedly attaching the cable to the lever arm in a select orientation relative to the lever arm and the attachment point. A guide surface is curved about the pivot axis and has a first portion attached to the lever arm with the attachment point essentially coincident therewith and a second portion circumferentially spaced from the first portion.

Abstract: The present application relates to brake actuators, and more particularly to a brake actuator of the hand-operated type in which a hand grip is rotated to release a pawl for enabling brake releasing movement of a brake lever.

Abstract: A bicycle disc brake caliper includes a lever arm rotatable about a pivot axis and a rotary to linear linkage between the lever arm and a brake pad translating rotation of the lever arm in an advancement and a return direction to linear advancement or return, respectively, of the brake pad. A return spring is coiled about a spring axis as a first end is fixed against rotation relative to the lever arm and a second end is rotatable with the lever arm about the spring axis. A screw is selectively rotatable about a screw axis and is operatively associated with an end of the spring to selectively rotate the end of the spring relative to the other end of the spring about the spring axis by rotation of the screw independent of movement of the lever arm to adjust the return force applied by the spring to the lever arm.

Abstract: An apparatus for the application of a braking force to a wheel of a wheelbarrow, hand cart or other type of a cargo portage device includes a twist grip mechanism with a latching type of a ratchet attached to the handlebar of the device. As the twist grip mechanism is rotated a progressive braking force is applied to the wheel by tightening a brake band that extends around a drum that is attached to the wheel. A cable is attached at one end to the twist grip mechanism and to the brake band at its remaining end. The ratchet maintains the braking force that is applied until a thumb release lever is depressed which disengages a ratchet dog from contact with any of a plurality of ratchet teeth.

Abstract: A bicycle disc brake caliper includes a housing configured to be rigidly fixed to a bicycle frame containing a pair of opposing brake pad assemblies configured to reside on opposite sides of a disc operatively associated therewith. At least one of the brake pad assemblies is advanced and retracted relative to the disc by a drive mechanism along an advancement axis to effect braking. A pad wear compensation apparatus is operatively associated with at least one of the brake pad assemblies to advance the brake pad assembly along the advancement axis as it wears. The pad wear compensation apparatus includes an adjustment knob attached to the housing for rotation about a rotation axis and fixed against axial movement.

Abstract: A control apparatus for controlling a drive member rotatably supported on a bicycle includes a mounting member for mounting the apparatus to the bicycle, a braking mechanism coupled to the mounting member for applying a braking force to the drive member; and a coupling mechanism adapted to couple the braking mechanism to a shift control mechanism so that the braking mechanism applies the braking force to the drive member upon actuation of the shift control mechanism.

Abstract: A bicycle cantilever brake for being applied to a wheel rim of a bicycle. Specifically, there is a seat (7) fixedly mounted to the bicycle. There is a brake arm (2), rotatably mounted at a first end to the seat. There is also a brake shoe assembly, rotatably mounted to a mid-section of the brake arm. Uniquely, there is a flexible member (5), non-rotatably coupled to the seat and the brake shoe assembly, whereby the flexible member maintains an aligning axis (90) of the brake shoe assembly in a parallel orientation during successive stages of actuation.

Abstract: A cable feed for a cable actuated bicycle includes a housing and an actuator residing within the housing operatively associated with the cable. The cable feed consists of a mount attached to the housing having a mount orifice along a guide axis. A cylindrical ferrule having an axial bore extending between first and second ferrule ends includes a barb at the first end and a stop near the second end. The ferrule is axially inserted within the first end leading into the mount orifice with the stop halting axial insertion of the ferrule into the mount orifice. A minor elastic boot having a first end with an inwardly extending angular flange mates with the attachment barb and has an outer diameter at the first end large enough to prevent axial withdraw of the ferrule from the mount orifice.

Abstract: A bicycle disk brake assembly includes a pressure-reducing cylinder attached to a caliper body and formed with an inner chamber and outer chamber. Upon application of an external pressure to a hydraulic fluid, which is filled within a fluid reservoir in the caliper body, the fluid flows from the reservoir to the outer chamber. When the fluid pressure in the outer chamber reaches a first value, an inner check valve is operated so as to permit flow of the fluid from the outer chamber to the inner chamber. Thereafter, when the fluid pressure in the inner chamber reaches a second value and when the external pressure is released, a resilient member biases the fluid in the inner chamber to activate an outer check valve, thereby permitting flow of the fluid from the inner chamber to the outer chamber and subsequently to the reservoir.

Abstract: A caliper of a disc brake assembly includes a housing with a cavity configured to receive a disc brake of a disc brake assembly. The cavity includes opposing recesses configured to nest first and second friction pad and plate assemblies on opposite sides of the disc. A drive within the caliper housing advances the first friction pad assembly into contact with the disc along an advancement axis. A retaining structure for the first friction pad and plate assembly includes a pad retention clip attached to the housing within the cavity, the pad retention clip defining an elongate track extending along the advancement axis. A retention tab on a plate of the first friction pad and plate assembly is configured to snap fit with the pad retention clip and to move along the advancement axis within the elongate track as the first friction pad and plate assembly is advanced along the advancement axis by the caliper drive.

Abstract: A rotary device for stunt bicycles includes a bearing set movably mounted to a steerer tube and having two upright lugs and two downward lugs. A first collar is pivotally connected to the upright lugs and a first lever member has one end thereof pivotally connected to the first collar, and the other end of the first lever member is connected to a first brake cable. A second collar is pivotally connected to the downward lugs. A second lever member has one end thereof pivotally connected to the second collar, and the other end of the second lever member is connected to a second brake cable.

Abstract: A bicycle brake assembly includes a caliper body and an anti-dead lock device. The caliper body has a vertical passage to permit extension of a brake disk of a wheel, a fluid reservoir replete with a hydraulic fluid, and two brake-pad mounting pieces. Two brake pads are mounted respectively on the brake-pad mounting pieces of the caliper body, and are operably associated with the fluid reservoir in such a manner that when a pressure is applied on the fluid reservoir, the brake pads clamp the brake disk. The anti-lock device includes a cylinder defining a chamber, and a piston member disposed sealingly and movably in the chamber to divide the same into first and second partitions. The first partition is replete with the hydraulic fluid, and is in fluid communication with the fluid reservoir. An urging member is disposed in the second partition and abuts against the piston member.

Abstract: A bicycle cable disc brake is provided with an adjustable return spring for moving the cable disc brake from a braking position to a release position. Basically, the cable disc brake has a cable housing, a pair of friction members, a cable actuated mechanism and a biasing member. The first friction member is movably coupled to the caliper housing between a release position and a braking position. The second caliper is also coupled to the caliper housing and arranged substantially parallel to the first friction member to form a rotor receiving slot therebetween. The cable actuated mechanism is movably coupled to the caliper housing to move the first friction member from the release position towards the second friction member to the braking position. The biasing member has a first end adjustably coupled to the caliper housing and a second end adjustably coupled to the cable actuated mechanism to urge the cable actuated mechanism to the release position.

Abstract: A locking device for a parking brake is provided which ensures that the operation of locking a parking brake lever and the operation of releasing the locking of the parking brake lever can be carried out in a single stage. The parking brake lever is pivotally supported on a mounting bracket mounted on a steering handle by a first support shaft, and a lever locking member is pivotally supported on the mounting bracket by a second support shaft, and biased by a torsion spring. When the parking brake lever is operated, an engage groove in the parking brake lever is brought into engagement with a locking pin, whereby the parking brake lever is locked at a brake operating position. When an operating portion of the lever locking member is urged in a direction against a resilient force of the torsion spring, the engagement of the engage groove and the locking pin with each other is released, whereby the parking brake lever is pulled by a Bowden cable and swung back to an original brake releasing position.

Abstract: A bicycle brake device has a first brake arm body, a first lid, a second brake arm body and a second lid. The first brake arm body has a first attachment opening and a first fastener recess located adjacent to the first attachment opening. The second brake arm body has a second attachment opening and a second fastener recess located adjacent to the second attachment opening. The second brake arm body is adapted to be operatively coupled to the first brake arm body to move the first and second brake arm bodies between a release position and a braking position. The first lid is detachably coupled to the first brake arm body to overlie the first fastener recess. The second lid is detachably coupled to the second brake arm body to overlie the second fastener recess. First and second covers can also be provided to overlie the attachment openings of the brake arm bodies. The lids can be attached to the brake arm bodies in a variety of ways.

Abstract: An actuator for a hydraulic brake system of bicycle includes a box having a chamber and a passage which communicates with the a chamber. Hydraulic oil is filled in the chamber and the passage. A piston is movably inserted into the a chamber and a brake cable is fixedly connected to the piston. The passage is connected with a brake mechanism so that when pulling a brake lever to pull the brake cable, the piston is moved to push the hydraulic oil to the passage to actuate the brake mechanism. A spring is biased between the piston and an inside defining the chamber if the box is connected to the brake lever. The piston will be back to its original position by the spring when releasing the brake lever.

Abstract: A bicycle cable connection device is designed to connect a tube lashing seat of the bicycle and an outer tube enclosing the bicycle brake cable. The connection device comprises a pliable tube, a tube sleeve, and an adjustable member. The pliable tube has a predetermined length and encloses the bicycle brake cable. The tube sleeve is connected with the adjustment member and the pliable tube. The adjustment member is connected with the outer tube. The connection device is mounted in such a manner that the adjustment member does not obstruct other component parts of the bicycle.

Abstract: The present invention relates to a brake signal sensor device which is electrically connected to a warning light by a transfer wire. The brake signal sensor device includes a body, and a cover mounted on the body. The body defines a receiving chamber for securing a contact switch whose one side is provided with two spaced guide plates. A pull wire is used to pull an elastic member to displace a conducting member, such that the contact switch can produce a start signal which is transferred to the warning light, whereby the warning light secured on the bicycle emits light, thereby enhancing the safety of riding the bicycle. The brake signal sensor device may be easily fixed on the brake cable adjacent to the brake lever by a fastening strap without having to be mounted on the brake pad.

Abstract: A brake arm pitch adjustment structure for vehicle front brake includes a first brake arm and a second brake arm pivoted to a fixed axle, a cable guide fastened to a shaft at a shoulder of the first brake arm to hold a brake cable, enabling the core of the brake cable to be fixed to a core holder at the second brake arm, and a swivel adjustment member turned about the shaft between two positions to adjust the pitch between the brake arms, the swivel adjustment member having two parallel sidewalls pivoted to the shaft, a connecting back wall connected between the sidewalls and a handle upwardly outwardly extended from the connecting back wall, wherein the connecting back wall of the swivel adjustment member has a top side connected between the short top side of each sidewall; the short top side of each sidewall of the swivel adjustment member having a straight engagement portion obliquely backwardly sloping toward the connecting back wall and the handle, and a parabolic guide portion connected between the stra

Abstract: A bicycle brake device has a first brake arm body, a first lid, a second brake arm body and a second lid. The first brake arm body has a first attachment opening and a first fastener recess located adjacent to the first attachment opening. The second brake arm body has a second attachment opening and a second fastener recess located adjacent to the second attachment opening. The second brake arm body is adapted to be operatively coupled to the first brake arm body to move the first and second brake arm bodies between a release position and a braking position. The first lid is detachably coupled to the first brake arm body to overlie the first fastener recess. The second lid is detachably coupled to the second brake arm body to overlie the second fastener recess. First and second covers can also be provided to overlie the attachment openings of the brake arm bodies. The lids can be attached to the brake arm bodies in a variety of ways.