CN2208534Y

CN2208534Y - Bicycle brake handle device

Info

Publication number: CN2208534Y
Application number: CN 94222490
Authority: CN
Inventors: 曾清波
Original assignee: HONGJIA METAL INDUSTRY Co Ltd
Current assignee: HONGJIA METAL INDUSTRY Co Ltd
Priority date: 1994-09-30
Filing date: 1994-09-30
Publication date: 1995-09-27
Anticipated expiration: 2004-09-30

Abstract

The utility model relates to a brake handle device for a bicycle, comprising a brake handle, a seat body, a guard sheet and a brake cable. One end of the brake handle is provided with a guiding disc, the guiding disc is pivoted in the hollow casing of the seat body, and the upper side of an outer periphery wall is provided with a wire way and a wire head seat which are used for fixing the brake cable. The upper side of the inner periphery wall of the seat body is provided with a stroke fixed block and a clamping groove, and the guard sheet then is covered on the guiding disk. The utility model has the efficacies that the force application is convenient and the distance of the brake handle and a bicycle handle can be adjusted.

Description

Bicycle brake handle device

The utility model relates to a kind of bicycle brake door handle device.

Bicycle is not only a kind of any class, all spendable vehicle of identity, more can treat as a kind of sports equipment, because bicycle need not use fuel, can not make any environmental pollution again in addition, be a kind of vehicle of the most worth promotion today, popularization really.

But from another point of view, also because bicycle is a kind of by structure that simple member combined, so going up little shortcoming, its design just may cause the rider dangerous greatly, in view of this, domestic bicycle dealer is for the design of relevant bicycle and improve one to doing one's utmost, yet according to investigation, there is the person that drives the bicycle of ratio over half phenomenons dissatisfied or that apprehend to be arranged approximately for the bicycle brake performance, its reason includes brake failure, the brake cable fracture, jammed a finger etc. by brake crank, though the dealer makes great efforts to be studied improvement always, yet above-mentioned accident has what is heard still the time, and obvious industry does not even to this day still have the countermeasure of properly settling.

The bicycle brake grip structure of commonly using is modal on the market pattern at present as shown in Figure 7, its structure includes brake handle 41, tubular axis body 42, brake cable 43, wherein brake handle 41 upper limbs are provided with the groove seat 411 that brake cable 43 is fixed, and downside protrudes the end body 46 as rotating shaft, in tubular axis body 42, be provided with in addition an axial axis hole 45 to be set on the bicycle handle 50, extend the prominent axle 421 of an arc on the tubular axis body 42, be provided with a guide groove 44 in the prominent axle 421; During combination, at first the end body 46 on the brake handle 41 is placed among the guide groove 44 of tubular axis body 42, and both are linked with fix screw 47, secondly brake cable 43 is coated with flexible pipe 431, and penetrate from the prominent axle 421 that tubular axis body 42 1 sides are extended out, and be fixed in the groove seat 411 of box drain shape on the brake handle 41, so can finish the structure of bicycle brake handle 40.

More than this bicycle brake grip structure of commonly using, can cause a great problem in use, and this problem is noticed not by the person of commonly using always and manage to improve; The research that indicates association (DIN) according to international bicycle is pointed out, general teenager and women etc., because palm is little, therefore optimal distance should be 77mm between brake handle 41 and the bicycle handle 50, again, the distance of pulling brake handle 41 the most comfortable when the adult drives then is 88mm, and present employed bicycle there is no the device of adjusting brake handle 41 and bicycle handle 50 spacings, therefore work as the rider if use inappropriate bicycle, usually want inadequate adaptation, to attain the situation that causes danger to occur frequently.

In addition, the person of commonly using still has following two problems extremely to be solved:

1, have the user 1/4 or more once to be crushed by the gap that brake handle 41 is pulled between following time and the tubular axis body 42 formation approximately according to investigation, this clearance issues then exists because of the shortcoming that it designs always.

2, the person of commonly using pulls brake cable 43 in the mode of directly pullling, and comparatively require great effort when not only using, and brake cable 43 constantly produces friction with perforation 4211 in the prominent axle 421, and the situation of wear and rupture takes place easily.

The purpose of this utility model is to provide a kind of bicycle brake door handle device, makes the guide discs that is provided with on the brake crank cooperate improved pedestal, has to make things convenient for the application of force and the slit between handle and pedestal is eliminated, and reaches safe, practical effect.

Another purpose of the present utility model is to provide a kind of bicycle brake door handle device, the distance between brake crank and the bicycle handle can be adjusted, to adapt to all kinds of consumer demands.

The purpose of this utility model reaches as follows:

A kind of bicycle brake door handle device includes a tubular axis body, the Brake lever of a band handle and a brake cable by the flexible pipe coating; It is characterized in that:

This Brake lever, one end is provided with the guide discs of a circle, and guide discs is provided with the flat bottomed open slot, is provided with connecting bore in the open slot, being stretched out by the opening cell wall forms the tip of protruding, and is provided with circular arc concave surface and fixedly duct and the end of a thread seat of brake cable on the circumference of guide discs;

Pedestal, link aforesaid Brake lever and be fixed on bicycle handle bar on hand, it is the hollow housing that extension one is provided with the circular flat bottom groove on tubular axis body, the bottom of hollow housing is provided with a connecting bore, then be provided with an one stroke fixed block and a draw-in groove on the internal perisporium, extend in addition the prominent mouth of an arc, in the prominent mouth and be provided with the perforation that brake cable is passed through in a side of pedestal;

Bluff piece is a plate shaped plate body, is installed with a protruding axle and a trip above, is installed on the outside of aforementioned Brake lever, and the connecting bore that this protruding axle passes in the Brake lever open slot cooperates bolt of rear end plate to pass the connecting bore of pedestal bottom with Brake lever and pedestal binding.

The purpose of this utility model can also following mode reach: described bicycle brake door handle device is characterized in that: establish a screw on the described pedestal and communicate with hollow housing, cooperate a trimming screw to replace the tip of protruding at Brake lever opening cell wall.

Described bicycle brake door handle device is characterized in that: device one torsion spring among the open slot of Brake lever.

Effect of the present utility model is: bicycle brake handle of the present utility model please cooperate the action diagram of Fig. 3 and the stereo appearance figure of Fig. 6, when wherein handle 12 is down pulled, brake cable 31 is to prolong guide discs 13 to detour, and be the fulcrum of rotation with guide discs 13, so can be comparatively easily slick and sly when pulling handle 12, in addition because the motion of its 10 of pedestal 20 and Brake levers when pulling, on the unitized construction of circular hollow housing 21 and guide discs 13, carry out entirely, and the outside covers with a bluff piece 39, its safety is indubitable, so the utility model can reach effect following 3 points are arranged:

1, the handle 12 of brake crank 30 can be adjusted spacing according to the situation of riding usefulness person's reality between the bicycle handle 50, makes the rider safer.

2, when pulling handle 12 brakes, can more slick and slyly easily not only increase the laborsaving and traveling comfort of bicycle, and can prolong the service life of brake cable 31 because friction is less.

3, needn't worry and clipped to the danger of finger,, have more the function of promoting its good looking appearance because bicycle brake handle 30 structural improvements of the present utility model can not produce slot among using.

For further understanding the architectural feature of the utility model, below cooperate one to implement graphic example explanation as back:

Fig. 1: be three-dimensional exploded view of the present utility model.

Fig. 2: be Brake lever assembly drawing of the present utility model.

Fig. 3: be action scheme drawing of the present utility model.

Fig. 4 and Fig. 5 are trimming screw running condition scheme drawing of the present utility model.

Fig. 6: be stereo appearance figure of the present utility model.

Fig. 7: for commonly using the brake crank stereo appearance figure.

Bicycle brake door handle device of the present utility model sees also shown in Figure 1ly, and it comprises members such as Brake lever 10, pedestal 20, brake cable 31, bluff piece 39, torsion spring 11, trimming screw 29, bolt of rear end plate 34, flexible pipe 32 and tubular guides 33; Wherein pedestal 20 is with a tubular axis body 22, supply directly pedestal 20 to be sheathed on the bicycle handle 50 according to its axial axis hole that bores 23, and with a hexagonal flathead screw 221 lockings, the opposite side of pedestal 20 then extends a hollow housing 21 that is provided with the circular flat bottom groove, the inner peripheral surface of this hollow housing 21 is provided with stroke fixed block 211 and draw-in groove 393, on stroke fixed block 211, then bore a screw of tiltedly establishing 291, hollow housing 21 1 sides on the pedestal 20 are extended with the prominent mouth 24 of arc of protrusion in addition, be drilled with an axial perforation 241 in the prominent mouth 24, but proper socket one tubular guides 33 of the internal diameter of this perforation 241; Brake cable 31 then is enclosed within the flexible pipe 32; Again, if the plate shape bluff piece 39 of a circle, the profile of bluff piece 39 can cooperate consult shown in Figure 2, which is provided with circular protruding axle 391 and trip 392, trip 392 is in the draw-in groove 393 that is embedded on the pedestal 20, then is provided with screw in the protruding axle 391, and bluff piece 39 can be cooperated with bolt of rear end plate 34, with the combination locking of pedestal 20 and brake crank 10, finish complete bicycle brake handle 30 structures.

The detailed structure of aforementioned Brake lever 10 please refer to shown in Figure 2, wherein the guide discs 13 in Brake lever 10 1 ends is provided with a fan-shaped open slot 14, be provided with connecting bore 101 in the bottom surface of open slot 14, its cell wall both sides then stretch out and protrude the end, be provided with a circular arc concave surface 15 and duct 131 in guide discs 13 outer circumference surfaces, duct 131 is the end of a thread seat 132 of end for falling to the greatest extent, in open slot 14, can install a torsion spring 11 in addition, and utilize protruding axle 391 to pass connecting bore 101 so that torsion spring 11 is fixing.

With above-mentioned component composition the time, see also Fig. 1,2,3, at first need pedestal 20 is installed on the bicycle, step is as follows: earlier the hexagonal flathead screw 221 on the pedestal 20 is loosened, and according to 23 designs of the axis hole in the tubular axis body 22, whole pedestal 20 is sleeved on the bicycle handle 50, then torsion spring 11 is placed in the open slot of establishing in the Brake lever 10 14, utilize protruding 391 connecting bore 101 and permanent twist spring 11 that passes on the Brake lever 10 on the bluff piece 39 again, secondly guide discs 13 parts of the Brake lever 10 that combines are placed the hollow housing 21 on the pedestal 20 and cooperate with it, on protruding axle 391 connecting bores 201 that then can be embedded in the hollow housing 21 on the bluff piece 39, screw togather with fix screw 34 at last and can finish assembling; It should be noted that the stroke fixed block of being located in the hollow housing 21 211 needs between the extended tip of Brake lever 10 upper shed grooves, 14 cell walls, in other words, distance is the upper and lower radian that 12 on handle can be pulled between two tips of these open slot 14 cell walls, set trip 392 then is used for being enclosed within the draw-in groove 393 on the pedestal 20 on the bluff piece 39, makes bluff piece 39 stationkeeping when sealed; In addition when device brake cable 31, the tubular guides 33 that please will dash forward earlier on the mouth 24 is pulled up, allow the end of a thread 311 of brake cable 31 can enter perforation 241 in the prominent mouth 24, need this moment the handle 12 of Brake lever 10 is pulled down, make the circular arc concave surface 15 on the guide discs 13 be displaced to perforation 241 positions of prominent mouth 24 and form a space 151, so that the end of a thread 311 passes through among hollow housing 21, and the duct 131 that is prolonging on guide discs 13 circumference installs, 311 at its end of a thread is fixed on the end of a thread seat 132, so can finish a complete unitized construction.

What deserves to be mentioned is: the distance in the utility model between Brake lever 10 and bicycle handle 50 is adjustable design, as shown in Figure 4 and Figure 5, the appropriate location of 22 of prominent mouth 24 and tubular axis bodies on pedestal 20, one oblique screw 291 is set cooperates trimming screw 29, when trimming screw 29 in the circular hollow housings 21 during packing, can prop up the cell wall tip of guide discs 13 upper shed grooves 14, so just can make the position of handle 12 near bicycle handle 50, and shortening distance between the two, as shown in Figure 5, opposite, if trimming screw 29 is loosened away from circular hollow housing 21, then handle 12 can because of the pulling force of brake cable 31 up, offset up to the cell wall tip of trimming screw 29 and open slot 14 or utilize stroke fixed block 211 and cell wall tip to offset, distance between handle 12 and the bicycle handle 50 then can strengthen at this moment, as shown in Figure 4.

Claims

1, a kind of bicycle brake door handle device includes a tubular axis body, the Brake lever of a band handle and a brake cable by the flexible pipe coating; It is characterized in that:

2, bicycle brake door handle device as claimed in claim 1 is characterized in that: establish a screw on the described pedestal and communicate with hollow housing, cooperate a trimming screw to replace the tip of protruding at Brake lever opening cell wall.

3, bicycle brake door handle device as claimed in claim 1 or 2 is characterized in that: device one torsion spring among the open slot of Brake lever.