CN1178816C

CN1178816C - Bicycle brake

Info

Publication number: CN1178816C
Application number: CNB001157868A
Authority: CN
Inventors: 刘仁炽
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-19
Filing date: 2000-05-19
Publication date: 2004-12-08
Anticipated expiration: 2020-05-19
Also published as: CN1324745A

Abstract

The present invention relates to a bicycle brake. The present invention is characterized in that a plurality of braking blocks and a group of braking mechanisms are arranged between a braking hub and a hub cover, the braking mechanism comprises a partition component, a linking component and a plurality of braking components, wherein the partition component and the linking component are assembled into one body in an abutting way, and the braking components are pushed by elastic elements. Furthermore, first section braking effectiveness can be generated by the braking blocks which are pushed by the braking members through the change of a rotation angle of the braking mechanisms, when the braking mechanisms continuously rotate, the braking members are caused to be supported on inner part support plates of the braking mechanisms so as to generate strong second section braking effectiveness, and two-section type braking effectiveness for a bicycle is further formed, wherein the two-section type braking effectiveness can prevent instant braking locking.

Description

Bicycle brake

Technical field

The present invention relates to the drg of bicycle.

Background technology

Bicycle brake system is on traditional design, all utilize the operation of brake cable to impel to be located at brake hubs in-to-in brake shoes to outer displacement and the braking that rubs, but on practice, brake shoes is braked with the friction that contacts of brake hubs, normal because of user's custom and the reaction under the emergency situations, cause the brake deadlock phenomenon of moment brake, not only easily make tyre skidding, even overturn, fall; Trace it to its cause, tie up in locked problem of brake moment.At the what is called brake locked so-called anti-locking braking of always in the automobile brake system design, having of the tyre slip system that causes of moment, but aspect bicycle, still there are not the relevant technological innovation research and development that prevent that the moment brake is locked so far, foreign patent technical literature as is known: No. the 5810139th, US Patent, Taiwan patent No. 89008 " bicycle wheel formula brake " and No. 84229 " brake of bicycle use hub " etc., all be that mechanism at relevant interlock of bicycle brake and braking is researched and developed, but the relevant locked technological innovation of moment that prevents to brake is not all arranged.

Summary of the invention

Purpose of the present invention provides a kind of bicycle brake with two sectional type drag usefulness, can prevent the locked danger of moment of braking effectively, thereby drag effect securely is provided.

For achieving the above object, the invention provides a kind of bicycle brake, comprise the brake hubs that links the nave boss axle, be fixed in the hub cap of vehicle frame, be arranged at brake shoes and drag mechanism between the brake hub cap, it is characterized in that this brake shoes front end is provided with positioning port, and back segment inner edge appropriate location is provided with curved surface, and this curved surface is non-parallel in the curved surface of brake shoes outer rim; This stop mechanism comprises and separates part, several brake components and elastic element, each brake component is subjected to the promotion of elastic element and whetstone is against the curved surface of brake shoes inner edge, thereby when the stop mechanism anglec of rotation changed, brake component produced first section drag effect by brake shoes with the upwards extrapolability of elastic element; And when the stop mechanism anglec of rotation continued to strengthen, brake component was subjected to being located at the wall whetstone that separates that separates the part plate body and leans on, thereby produced second section stronger drag effect.

Brake of the present invention (especially provides Front brake) and has first section buffering brake weight to prevent the function that moment is locked when emergency brake is provided, and continue to provide second section sharp brake control power, make at ordinary times or during emergency brake all can guarantee the to brake safety benefit of anti-locking and firm drag effect.On using, reality has the following advantages:

1, two sectional type anti-locking braking system design makes brake safer.

2, stop locked, the tyre slip of the incident brake of bicycle moment emergency brake institute, so that car falls the danger that the people turns over.

3, promote the brake quality and the security effectiveness of bicycle.

Description of drawings

Below in conjunction with accompanying drawing the specific embodiment of the present invention is done further auspicious stating.

Fig. 1 is embodiments of the invention figure.

Fig. 2 is the right side view of Fig. 1.

Fig. 3 is that stop mechanism of the present invention is provided with figure.

Fig. 4 brake hubs front elevation.

Fig. 5 is the upward view of Fig. 4.

Fig. 6 is the 6-6 cutaway view of Fig. 4.

Fig. 7 is that brake shoes is provided with scheme drawing.

Fig. 8 is the brake shoes front elevation.

Fig. 9 is the right side view of Fig. 8.

Figure 10 is the upward view of Fig. 8.

Figure 11 separates the part front elevation.

Figure 12 is the right side view of Figure 11.

Figure 13 is the end cap of elastic element.

Figure 14 is the left side view of Figure 13.

Figure 15 is the right side view of Figure 13.

Figure 16 is the moving part front elevation.

Figure 17 is the right side view of Figure 16.

Figure 18 is the hub cap front elevation.

Figure 19 is the 19-19 cutaway view of Figure 18.

Figure 20 is first section drag scheme drawing.

Figure 21 is second section drag scheme drawing.

Figure 22 is an element assembly scheme drawing of the present invention.

The specific embodiment

See also shown in Fig. 1,2, the present invention is involutory by the hub cap 2 that the brake hubs 1 that is connected to the nave boss axle and is fixed on the vehicle frame with brake control lever 20, be provided with stop mechanism and several brake shoes 3 in both inside, include in the stop mechanism and separate part 4 (as Figure 11 and Figure 12), several brake components 5, main elements (as shown in Figure 22) such as several elastic elements 6, moving part 7, angle initialization bolt 8.

Brake hubs 1 is as Fig. 4～shown in Figure 6, and center port 10 is for being engaged in the nave boss axle, and hub inwall 11 is then for brake shoes 3 friction brakings; Hub cap 2 is as Figure 18 and shown in Figure 19, has an opening 21 and stretches out for the coupled arm 43 that separates part 4 that hub cap is outside to connect interlock for brake cable A; Brake shoes 3 with elastic bunch circle 30 with several brake shoes corrals, making at ordinary times, brake shoes 3 does not contact brake hubs inwall 11 (as shown in Figure 3), be provided with positioning port 32 in brake shoes 3 front ends, and back segment inner edge appropriate location is provided with curved surface 31, this curved surface 31 is non-parallel curved surface in the brake shoes outer rim, pastes displacement for brake component 5 whetstones and produces different braking effect (as Fig. 7～shown in Figure 10).

See also the stop mechanism that produces brake shoes 3 contact brake hubs inwalls 11 shown in Fig. 2 and Figure 22 and cause the two sectional type braking effect, wherein comprised to separate part 4 (as Figure 11 and shown in Figure 12) be a plate body, be equipped with in plate face thereafter and separate a wall 41 and a beam barrel 40, and the fixedly whetstone of brake component 5 leans on when being provided with a horizontal whetstone plate of stretching 42 for second section brake on respectively separating wall 41, and be provided with in plate body one lateral margin and stretch out the outside coupled arm 43 of crossing the traction interlock for brake cable A of hub cap, separating beam barrel 72 flank of tooth 721 that are provided with an angle initialization bolt 8 on the part 4 and are engaged in moving part 7, can adjust moving part 7 and the involutory angle that separates part 4 to reach, that is moving part 7 end caps 71 with separate the spacing that part 4 respectively separates wall 41, make elastic element 6 produce different elastic force setting values with the setting of looking different angles, the adjustment of this angle initialization bolt 8 can be adjusted setting by the adjustment hole 22 of hub cap 2.

Brake component 5 is that a cylinder or cross section are circular cylinder, be placed in and separate part 4 each whetstone plate 42 and 3 of brake shoes (as shown in Fig. 3 and Figure 20,21), and be subjected to elastic element 6 to set the upwards extrapolation of elastic force numerical value with one, this elastic element 6 can be spring, the one end is that whetstone places the set end cap 71 of moving part 7, and the end cap 61 of the then sheathed location activity of end (as Figure 13～shown in Figure 15) is contacted with brake component 5 in addition.

Moving part 7 is as Figure 16 and shown in Figure 17, being provided with several end cap 71 ammunition feed power elements 6 one ends in moving part 7 installs, being provided with a beam barrel 72 in moving part 7 central authorities can be placed on the beam barrel 40 that separates part 4 in addition, be provided with the flank of tooth 721 for separating set angle initialization bolts 8 engagements of part 4 in beam barrel 72, this moving part 7 is and separates part 4 and be combined into one interlock.

See also shown in Figure 20, pass on when brake instruction and to impel when separating part 4 and beginning to rotate angle changing, brake component 5 is subjected to the curved surface 31 of displacement in brake shoes 3, so the action that is subjected to the brake component 5 of elastic element 6 pushing tows promptly to produce the brake shoes 3 of upwards extrapolating, and form first section braking effect being set the braking of elastic force pushing tow as the elastic element among Figure 20 6.

When the brake instruction continues, when the antagonistic force that separates part 4 lasting angle changings increasings and cause

brake component

5 and 3 whetstones of brake shoes to lean on is set the elastic force numerical value greater than elastic element 6, even elastic element 6 stressed shrinking back, produce brake component 5 inside declines as shown in figure 21 (still be first section braking state this moment), and 42 one-tenth of whetstone plates that brake component 5 whetstones is against separate part 4 recessed shape attitude again, this moment, brake component 5 promptly formed second section drag state that the pressure whetstone leans on 3 of brake shoes.

Claims

1, a kind of bicycle brake is to include the brake hubs that links the nave boss axle, the hub cap that is fixed in vehicle frame, is provided with stop mechanism and several brake shoes in brake hubs and the involutory inside of hub cap; Include elements such as separating part, several brake components, several elastic elements, moving part, angle initialization bolt in this stop mechanism, it is characterized in that:

This brake shoes front end is provided with positioning port, and back segment inner edge appropriate location is provided with curved surface, and this curved surface is an indent and non-parallel in the curved surface of brake shoes outer rim;

Separating part is a plate body, be equipped with in plate face thereafter and separate a wall and a beam barrel, and the fixedly whetstone of brake component leans on when being provided with a horizontal whetstone plate of stretching for second section brake on the wall respectively separating; Be provided with in plate body one lateral margin that separates part in addition and stretch out the outside coupled arm of hub cap for brake cable traction interlock;

Separate the beam barrel flank of tooth that part is provided with an angle initialization bolt and is engaged in moving part, to reach the involutory angle that to adjust moving part and separate part, be the moving part end cap and separate the spacing that part respectively separates wall, make elastic element produce different elastic force setting values with the setting of looking different angles, and the adjustment of this angle initialization bolt can be adjusted setting by the adjustment hole of hub cap;

Brake component is placed in and separates between each whetstone plate of part and brake shoes, and is subjected to elastic element to set the upwards extrapolation of elastic force numerical value with one, and elastic element one end is that whetstone places the set end cap of moving part, and other holds the end cap of a sheathed location activity to be contacted with brake component;

Moving part is provided with several end cap ammunition feed power element one ends and installs, and being provided with a beam barrel in moving part central authorities can be placed on the beam barrel that separates part in addition, is provided with the flank of tooth for separating the set angle initialization bolt engagement of part in beam barrel.

2, bicycle brake as claimed in claim 1 is characterized in that, this elastic element is a spring.