CN2197301Y

CN2197301Y - Bicycle ring brake

Info

Publication number: CN2197301Y
Application number: CN 94220382
Authority: CN
Inventors: 薛广顺
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-30
Filing date: 1994-08-30
Publication date: 1995-05-17
Anticipated expiration: 2004-08-30

Abstract

Disclosed is a bicycle ring brake which is characterized in that two sets of eudipleural triangular brake rubber assemblies which have identical frameworks are installed on the bicycle branch pipes close to both sides of the bicycle rim, and comprise brake rubbers, supports, springs, card plates, ring frames, and gland components. The draw hook which is connected to the brake yarn is attached with a ring frame. The two ends of the ring frame are respectively connected with the two sets of brake rubber assemblies to form a wedging braking to both sides of the bicycle rim through carrying out a tractive braking. The utility model can achieve a rather ideal brake effect.

Description

Bicycle ring brake

The invention relates to the design plan of bicycle friction rim damper brake parts.

So far, use the cable brake bicycle when emergency brake, can collapse lock and cause brake failure toward 々, its reason is to cause the too quickly steel cable broken end that causes of grip because of the braking force deficiency, the very big and maintenance difficult of the potential danger of this fault, many improvements over the prior art patent schemes are arranged the sixth of the twelve Earthly Branches for this reason, and its purpose is further to improve brake control power, comes to this as the CNO35532A patent document of the Decree of Patent Office of China.

The objective of the invention is the pincerlike lock of existing cable brake bicycle known technology is improved, design the less power of holding of a kind of usefulness and produce the new braking device of forcing power---bicycle circular brake, with the brake safe of further raising cable brake bicycle.

The object of the present invention is achieved like this: on the close position of rim of the forward and backward car fork of bicycle, two nested structures are identical, left-right symmetric, the brake rubber block assembly set that outward appearance is triangular shape is installed on this position car breeches pipe with screw, two forward and backward brake cable pipe ends that two sneeks are drawn from the handlebar are fixed on the forward and backward support, from the steel cable termination that spool stretches out a pull hook is installed respectively, is respectively articulated a steel cable and connect with two cover brake rubber block parts to bending.

When brake, handling forward and backward lock handle traction steel rope of cable spurs two groups of brake rubber blocks and draws close the braking of rim two side planes along bearing chute reach, because brake rubber block profile angle design triangular in shape and bearing slideway plane are identical substantially with the angle that the rim side plane forms, therefore, brake rubber block reach braking presents wedging formula state.Produce big braking force, because the wedging angle is greater than from the locking angle, so can under action of the spring, return original position and can self-locking not block when loosening behind the steel cable pulling force brake rubber block.

Bicycle circular brake of the present invention compared with prior art is characterized in that braking force is big, obviously improve braking effect, and drive mechanism is simple.Stick control is light, collapses lock danger thereby effectively reduced, and improves the bicycle safety in utilization.

The advantage of bicycle circular brake be cost low, install, adjust easy, and commonality is good, is applicable to all kinds bicycle, comprising morpet.

Concrete structure of the present invention is drawn by following examples and accompanying drawing thereof:

Fig. 1: bicycle circular brake topology layout scheme drawing:

(1) front frame, (2) preceding pull hook, (3) after poppet, (4) back pull hook,

Fig. 2: the another kind of schematic layout pattern of bicycle circular brake back brake;

Fig. 3: bicycle circular brake (Fig. 1 back brake) structural principle scheme drawing,

(5) set screw, (6) clamp, (7) spring, (8) steel cable, (9) brake rubber block, (10) gland, (11) bearing, (12) carriage, (13) nut, (14) screw, (15) cone joint,

Fig. 4: bicycle circular brake (Fig. 1 front brake, Fig. 2 back brake) profile scheme drawing;

Fig. 5: the another kind of structural representation of bicycle circular brake:

(16) toroidal frame, (17) nut.

For ease of understanding basic structure of the present invention and principle of work, be described with reference to the accompanying drawings: before heavy line is present technique among Fig. 1, back brake associated components outline position, the spool termination that sneek from handlebar is drawn is separately fixed at front frame (1), on the after poppet (3), pull hook (2) and back pull hook (4) before the long steel cable termination of therefrom drawing connects, its coupling method can be with the tight rope screw or at end riveted joint cone joint, articulate with the pull hook hole, hang one on two pull hooks respectively to bending steel cable (8), every steel cable two ends is given first riveting, and to have conical joint (15) to pass two groups of structures identical, symmetrical bearing (11), spring (7), brake rubber block (9) articulates with the gland of withholding at brake rubber block lower through-hole place (10).Carriage (12) is with screw and attachedly helps part to be fastened on the car breeches pipe or its system of giving is welded on the car breeches pipe, the thin chain line in left side is represented car breeches pipe position among Fig. 3, bearing is finished with utilizing screw (14) and nut (13) connecting of carriage, the screw hole of bearing is an elongated hole, is convenient to the position and moves the best operational position of adjusting brake rubber block and rim.The clamp (6) that is spill is placed on bearing with the fastening one of brake rubber block (9) and is in the chute of U type, and clamp is blocked in bearing chute both sides, it can be free to slide in chute but can not take off groove, lays a spring between on bearing and brake rubber block through hole.The thin chain line in right side represents that rim section signal, brake rubber block have a concave through grooves can the rub side plane and the internal circular surfaces of rim among Fig. 3, and this friction braking to the rim corner angle can increase the bond area that rubs, and helps to improve braking effect.Set screw is to be used for the fixing of spool end and brake rubber block wearing and tearing back trimming screw position change steel cable length compensation brake rubber block wearing clearance.Gland (10) has a diameter to be slightly less than the hole of cone joint cap diameter.Leave the opening that is slightly larger than cable diameter to the edge in the hole, institute so that the steel cable termination articulate easily.Shown in Figure 4 and Fig. 3 structure are basic identical, just do not have set screw and spool, and this is because during this lock work, the steel cable straight line stretches and do not establish spool.Among the figure

The angle that expression bearing slideway plane and rim side plane form is pressed

The brake rubber block of angle design is the friction of wedging formula so that the rim side plane is produced bigger positive pressure when working.

Another design plan of the present invention is seen Fig. 5, and its two ends of toroidal frame (16) of the half garden shape of being made by a steel wire connect two groups of symmetries, identical brake rubber block parts respectively, the effect of toroidal frame with

Steel cable among Fig. 4 is similar, in the toroidal frame two ends screw thread is arranged, utilize nut (17) to compress and withhold the gland of locating in the brake rubber block hole, nut (17) also plays the effect of regulating the suitable control position of brake rubber block, pull hook or back pull hook before toroidal frame semicircular ring midway location articulates affect two groups of brake rubber blocks with the moved further braking brake the even weighing apparatus of pulling toroidal frame.

Such scheme is applicable to the various cable brake bicycles that comprise morpet, and to install and use its coupling method be that linkage part with rim brake connects (figure does not draw) with toroidal frame or steel cable if be used for the rim brake bicycle.

Claims

1, a kind of bicycle (comprising morpet) circular brake of the rim braking that rubs, by front frame (1), preceding pull hook (2), after poppet (3), back pull hook (4), set screw (5), clamp (6), spring (7), steel cable (8), brake rubber block (9), gland (10), bearing (11), carriage (12), nut (13), screw (14), cone joint (15), toroidal frame (16), nut (17) is formed, it is characterized in that: two nested structures are identical, left-right symmetric, outward appearance is the brake rubber block assembly set of triangular shape, is left the two ends of screw thread by toroidal frame (16) and passes bearing (11) separately, spring (7), brake rubber block (9), gland (10) is fixing with nut (17), articulate preceding pull hook (2) in the toroidal frame middle part, the brake rubber block (9) that leaves through hole is placed in bearing (11) chute that leaves microscler screw hole with the fastening one of clamp (6), holds spring (7) between bearing (11) and brake rubber block (9), and bearing (11) utilizes screw (14) with carriage (12), nut (13) is connected and fixed, and brake rubber block (9) fricting working surface has a concavity groove.

2, the bicycle circular brake according to claim 1 is characterized in that: riveting has the steel cable (8) of conical joint (15), passes set screw (5), bearing (11), spring (7), brake rubber block (9) and gland (10) and articulates.