Abstract:
A caliper brake of a bicycle includes a first arm; a cable housing disposed at one end of the first arm; a second arm pivotably secured to the first arm and comprising a yoke at one end, the yoke including two opposite yoke arms; a brake cable retaining member for retaining a brake cable passing the cable housing; a pawl pivotably disposed between the yoke arms and secured to the brake cable retaining member, the pawl including a tooth; and a spring depressible ratchet including a hook at one end, the ratchet being pivotably disposed between the yoke arms to have the hook to engage with the tooth so that the ratchet is held against rotation to hold the brake cable tight. Counterclockwise rotating the ratchet to disengage the hook from the tooth and clockwise rotating the pawl will loosen the brake cable.
Abstract:
A novel method of attaching a bicycle hydraulic rim braking system to a bicycle which allows it to accommodate a large variation in different bicycle wheel rim widths and still operate in an efficient manner.
Abstract:
A bicycle brake mechanism includes a body located above a front wheel and a pivotable member is pivotably connected to the body. A brake cable extends through the front fork and is connected to the pivotable member. Two brake arms are located on two sides of the rim and two respective first ends of two link units are respectively connected to two ends of each of the brake arms. The two respective second ends of the links units are connected to two ends of the body. One end of each of the two brake arms is pushed by the pivotable member when the brake cable is pulled. The two link units make the two brake arms to be simultaneously moved to stop the rim.
Abstract:
An antilock brake system for a bicycle is mounted to a brake mounting bracket and generally comprising: brake shoe holder, sliding seat, brake shoe and elastic member. The brake shoe holder is formed with groove for slidably receiving the sliding seat, the brake shoe is disposed in the sliding seat, the brake shoe holder is provided with an antilock slope, and the sliding seat is correspondingly provided with a projecting portion for abutting against the antilock slope; the elastic member serves to retain the sliding seat at an end of the brake shoe holder in a rotating direction of a bicycle wheel before the brake is applied.
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:
A brake pad block for a bicycle wheel rim brake which includes an elongate holder and a plurality of pad segments having a contact surface for abutting a wheel rim, with at least two of the plurality of pad segments having distinct contact surfaces within a contact surface plane providing a different frictional characteristic when abutting the wheel rim. The pad segments are removeably and slideably engaged with the elongate holder in a direction parallel to the contact surface plane with the contact surfaces extending from the holder in an operative orientation for abutment with the wheel rim. A stay is operatively associated with the elongate holder and the pad segments to selectively maintain the slideably engaged pad segments in a fixed position relative to the pad holder and permits slideable disengagement of the pad segments from the pad holder.
Abstract:
A brake device includes a shoe holder, and a brake shoe held by the shoe holder. The brake shoe has a plurality of outwardly projecting brake parts, a plurality of grooves each of which is formed between two adjacent ones of the brake parts and each of which is defined by a pair of groove walls, a plurality of flat contact faces formed on the brake parts, respectively, and spaced apart by the grooves, and a pair of buffer faces formed at two opposite ends of each of the contact faces to connect each of the contact faces to two adjacent ones of the groove walls. Each of the buffer faces extends inwardly of the corresponding one of the contact faces.
Abstract:
A brake force adjuster for a vehicle brake especially for a bicycle brake includes a hanger holding a hanging wire secured with a pair of brake shoes for operatively clamping a wheel rim of a vehicle wheel for braking purpose, an adjustable locking latch resiliently tensioned on the hanger normally frictionally locking a braking wire remotely connected to a brake lever to be operated by a vehicle driver, and a locking bolt locking the braking wire on the hanger. When unlocking the locking bolt and pulling the adjustable locking latch, the hanger may be freely moved along the braking wire for adjusting a clamping force of the braking shoes. After releasing the locking latch, the locking latch will resiliently frictionally lock the braking wire which is then firmly locked by the locking bolt also formed on the hanger. Therefore a brake force adjuster of a vehicle brake can be easily assembled and adjusted.
Abstract:
A hydraulic bicycle brake comprises at least one actuating cylinder and at least one brake cylinder in a cylinder mounting, the brake cylinder being connected to the actuating cylinder by a fluid line, wherein the fluid line opens into a variable-volume chamber in the brake cylinder and the movement of a brake element, for example a brake shoe, is controllable by the variation in volume thereof, characterized in that the brake cylinder rests in the mounting eye of a rotatable mounting element and the latter can be fixed in a preselectible position.
Abstract:
The brakes of a bicycle are actuated in response to rotation of the pedal crank in a reverse direction. The brake actuating mechanism includes an actuating member which is connected to the pedal crank by a freewheel and a slip coupling. The freewheel is disengaged during forward rotation of the pedal crank, and it is engaged during reverse rotation of the pedal crank to move the actuating member and operate the brakes. During heavy braking, the slip coupling reduces the force exerted by the actuating mechanism on the brake operating cables. Movement of the actuating member also unblocks a freewheel which normally blocks reverse rotation of a driven wheel of the bicycle. This unblocking action prevents the pedals from locking after heavy braking.