CN2680564Y - Bicycle disc brake device - Google Patents
Bicycle disc brake device Download PDFInfo
- Publication number
- CN2680564Y CN2680564Y CN 200420000667 CN200420000667U CN2680564Y CN 2680564 Y CN2680564 Y CN 2680564Y CN 200420000667 CN200420000667 CN 200420000667 CN 200420000667 U CN200420000667 U CN 200420000667U CN 2680564 Y CN2680564 Y CN 2680564Y
- Authority
- CN
- China
- Prior art keywords
- pads
- ball
- roller balls
- groove
- brake device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a bicycle disc brake device, comprising a body. One end of the body is provided with a draw arm which is interlocked with a brake thread and can pivot relatively to the body, and the other end is provided with a drive group interlocked with the draw arm. The drive group comprises a driving part, a passive part, a plurality of pulling and bunting balls, a pulling and bunting element and two friction plates. Wherein, a plurality of roller balls in annular arrangement are arranged around the driving part and the periphery is also provided with two pads which are arranged on the two sides of the roller balls. The flank that the two pads face the roller balls is provided with a circular arc dished groove and then the roller balls are held in the groove of the two pads. The utility model uses two pads with groove to coat the roller balls and to increase the contact area of the roller balls and the pads, avoid the phenomenon of abrasion and scoring of the pads and decrease the friction force between the roller balls and the pads. Therefore, the smooth ability of the action of the disc brake device is raised.
Description
Technical field
The utility model relates to a kind of drg of bicycle, relates in particular to a kind of reducing wear and friction force, to improve the Bicycle dished brake device of operation smoothness.
Background technology
As shown in Figure 3, be a kind of existing Bicycle dished brake device, it mainly is to be provided with a torque arm 52 that is connected to brake cable at a body 50 1 ends, in addition end be provided with one with the driving unit 60 of torque arm 52 interlocks.This driving unit 60 mainly includes a driving link 62, a Passive part 63 and a push piece 66, this driving link 62 is with torque arm 52 interlocks and is arranged on rotationally in the body 50, driving link 62 1 end faces are provided with the pearl groove 622 of several arc shootings, the degree of depth of each pearl groove 622 is by an end gradually towards other end decrescence, and is provided with a pushing and pressing pearl 64 in each pearl groove 622 content.Passive part 63 be provided with pearl groove 622 with driving link 62 an end face mutually against, push piece 66 then with Passive part 63 interlocks, and be resisted against on the friction lining 68.
When the user pushes the brake handgrip and when spurring brake cable, can drive torque arm 52 rotates relative to body, and drive driving link 62 simultaneously and rotate relative to body 50, variation by pearl groove 622 degree of depth, can rotate the pearl 64 of promotion pushing and pressing simultaneously at driving link 62 moves axially, hold Passive part 63 and push piece 66 moves axially by pushing and pressing pearl 64 again, so just can promote friction lining 68 and be arranged on brake disc on the vehicle, reach the effect of brake with clipping.
For improving the smoothness that driving link 62 rotates relative to body 50, driving link 62 is provided with the ball 70 that a plurality of rings are located at driving link 62 peripheries, and be provided with a pad 72 against each ball 70, like this, can be by the setting of ball 70, reduce the friction force of 50 of driving link 62 and bodies, to improve the smoothness of disc brake apparatus operation.
Yet, because of the contact surface of pad 72 and each ball 70 is plane, as shown in Figure 4, pad 72 is to be point-like to contact with 70 on ball, so the pressure that pad 72 and ball are 70 is big, cause the wearing and tearing and the destruction on pad 72 surfaces easily, so in use for some time, the roughness on pad 72 surfaces can increase automatically.Pad 72 is a quite thin sheet body structure simultaneously, is difficult for improving its surperficial structural strength to avoid wearing and tearing in modes such as heat treatments, and therefore existing disc brake apparatus is produced the shortcoming that has some setbacks because of pad 72 easily by scratch when operation.
The utility model content
Produced the shortcoming that has some setbacks by scratch because of pad for what overcome that existing Bicycle dished brake device exists easily when the operation, the utility model provides a kind of Bicycle dished brake device, it mainly utilizes two canaliculate pads to coat ball, avoiding pad to produce the phenomenon of wearing and tearing scratch, thereby improve the smoothness of disc brake apparatus action.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of Bicycle dished brake device, comprise a body, body one end be provided with one with brake cable interlock, and the torque arm of body pivot relatively, body in addition end then be provided with one with the driving unit of torque arm interlock, driving unit comprise a driving link, a Passive part, a plurality of pushing and pressing pearl, a push piece and two friction linings; It is characterized in that: described driving link periphery is provided with a plurality of balls of arranging in the form of a ring, is provided with two pads that are folded in the ball both sides, and two pads are provided with the groove of a circular arc concavity towards the side of ball, and ball is contained in the groove of two pads.
Aforesaid Bicycle dished brake device wherein also comprises one in order to each ball is contained in rotationally ball bearing wherein.
By above-mentioned technological means, the utility model can reduce the wearing and tearing of pad, avoids friction coefficient between pad and ball to increase because of the wearing and tearing of gasket surface, to reduce friction force between the two, makes the operation of disc brake apparatus more smooth and easy.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an exploded perspective scheme drawing of the present utility model.
Fig. 2 is part sectional view of the present utility model.
Fig. 3 is the exploded perspective scheme drawing of existing Bicycle dished brake device.
Fig. 4 is the plan sketch that existing disc brake apparatus pad is subjected to scratch.
The number in the figure explanation:
12 torque arm of 10 bodies
20 driving unit, 21 driving links
22 Passive parts, 23 pushing and pressing pearls
24 push pieces, 26 friction linings
30 balls, 32 ball bearings
34 pads, 342 grooves
52 torque arm of 50 bodies
60 driving unit, 62 driving links
622 pearl grooves, 63 Passive parts
64 pushing and pressing pearls, 66 push pieces
68 friction linings, 70 balls
72 pads
The specific embodiment
Please cooperate and consult Fig. 1, shown in Figure 2, the utility model mainly is provided with a body 10, body 10 1 ends be provided with one with the brake cable interlock, and the torque arm 12 that pivots of body 10 relatively, body 10 end in addition is provided with one and the driving unit 20 of torque arm 12 interlocks.Wherein the keystone configuration of driving unit 20 and existing disc brake apparatus are roughly the same, it comprises a driving link 21, a Passive part 22, a plurality of pushing and pressing pearl 23, a push piece 24 and two friction linings 26, more than the detailed structure of each member and action relationships and existing disc brake apparatus roughly the same, do not give unnecessary details in addition at this.
Again, driving link 21 peripheries are provided with the ball 30 of a plurality of annular arrangements, and be provided with two pads 34 that are folded in ball 30 both sides, two pads 34 are provided with the groove 342 of a circular arc concavity towards the side of ball 30, and ball 30 is contained in the groove 342 of two pads 34, the ball bearing 32 of one ring-type can be set in addition, each ball 30 is arranged on the ball bearing 32 in rotating mode.
Whereby, be contained in because of ball 30 in the groove 342 of two pads 34, so each ball 30 is to be contacting of face with 34 on pad, can increase the area of contact of 34 on ball 30 and pad, under identical axially loaded, can reduce the pressure of 34 on ball 30 and pad, so can avoid pad 34 surfaces because of the stressed phenomenons such as wearing and tearing or scratch that produce, can keep pad 34 smoothness of the surface, the friction coefficient that can prevent 34 on ball 30 and pad increases because of the wearing and tearing on pad 34 surfaces, and then can keep ball 30 and 34 low bonding states that rub of pad, make the action of disc brake apparatus more smooth and easy.
In sum, the shortcoming that the utility model really can improve existing disc brake apparatus structure and use has creativeness, practicality, and the utility model do not see publication and public use, meets novel patent application important document, so file an application in accordance with the law.
Claims (2)
1. Bicycle dished brake device, comprise a body, body one end be provided with one with the brake cable interlock, and the torque arm of body pivot relatively, body in addition end then be provided with one with the driving unit of torque arm interlock, driving unit comprise a driving link, a Passive part, a plurality of pushing and pressing pearl, a push piece and two friction linings; It is characterized in that:
Described driving link periphery is provided with a plurality of balls of arranging in the form of a ring, is provided with two pads that are folded in the ball both sides, and two pads are provided with the groove of a circular arc concavity towards the side of ball, and ball is contained in the groove of two pads.
2. Bicycle dished brake device according to claim 1 is characterized in that also comprising one in order to each ball is contained in rotationally ball bearing wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420000667 CN2680564Y (en) | 2004-01-18 | 2004-01-18 | Bicycle disc brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420000667 CN2680564Y (en) | 2004-01-18 | 2004-01-18 | Bicycle disc brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2680564Y true CN2680564Y (en) | 2005-02-23 |
Family
ID=34605271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420000667 Expired - Fee Related CN2680564Y (en) | 2004-01-18 | 2004-01-18 | Bicycle disc brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2680564Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707256A (en) * | 2013-12-16 | 2014-04-09 | 宁波德诚工具有限公司 | Multistation axial clutch structure for roller pins of manual torque screwdriver |
-
2004
- 2004-01-18 CN CN 200420000667 patent/CN2680564Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707256A (en) * | 2013-12-16 | 2014-04-09 | 宁波德诚工具有限公司 | Multistation axial clutch structure for roller pins of manual torque screwdriver |
| CN103707256B (en) * | 2013-12-16 | 2016-08-17 | 宁波德诚工具有限公司 | A kind of needle roller multistation axial clutch structure of hands moment of torsion screw rotating tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050223 Termination date: 20110118 |