CN2179301Y - Automotive hand brake - Google Patents
Automotive hand brake Download PDFInfo
- Publication number
- CN2179301Y CN2179301Y CN 93224236 CN93224236U CN2179301Y CN 2179301 Y CN2179301 Y CN 2179301Y CN 93224236 CN93224236 CN 93224236 CN 93224236 U CN93224236 U CN 93224236U CN 2179301 Y CN2179301 Y CN 2179301Y
- Authority
- CN
- China
- Prior art keywords
- brake
- cheek
- braking
- brake shoe
- pivot pin
- 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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- Braking Arrangements (AREA)
Abstract
The utility model relates to an automotive hand brake. The utility model is composed of a braking soleplate, a braking shoe, a brake drum, a support plate, a draw arm, and two automatic boosting mechanisms for an adjustable camshaft pin. Due to the adoption of the automatic boosting mechanisms, the braking shoe can be wedged between the camshaft pin and the braking drum when braking is applied. Therefore, the utility model has the advantages of reinforcing braking power, shortening a braking distance, improving braking sensitivity, and guaranteeing running safety.
Description
The utility model relates to the centre brake or the hand brake of a kind of car brake, particularly automobile.
The centre brake or the hand brake of existing automobile adopt shoe drum brake mode and structure more, no self energizing effort mechanism in this drg, cause the increase of braking force slowly can only lean on the hand-power of navigating mate to finish braking, and brake little, the reaction insensitive, stopping distance is long, is unfavorable for the safety traffic of automobile.
The purpose of this utility model provides a kind of centre brake or hand brake, and it can save the manual force of navigating mate effectively, utilizes self energizing effort mechanism to produce big braking force.Thereby overcome the deficiency of above-mentioned prior art.
The purpose of this utility model is achieved in that hand brake comprises a back-plate, and it is provided with steering unit, and it links to each other with the automobile handle of automobile through steel rope; Described base plate is provided with locating dowel pin and the adjustable cam pivot pin affixed with it, be clamped in respectively between four ends of two brake shoe brake cheek, the respective end of described two adjustable cam pivot pins and the brake shoe brake cheek that matches with it constitutes force-increasing mechanism, promptly this respective end can be slided on the cam periphery of two adjustable cam pivot pins, and then makes the relative brake wheel of brake shoe brake cheek produce a wedge action.Brake shoe brake cheek is located by locating dowel pin, and by the positioning relation between cover plate and retainer spring assurance brake shoe brake cheek and base plate, and base plate is connected with change-speed box, the drg drum links to each other with transmission shaft.
The hand brake that is used for automobile, it is made up of back-plate, locating dowel pin and back plate and torque arm, brake shoe brake cheek, brake wheel, a pair of adjustable cam pivot pin self energizing effort mechanism, it is characterized in that being provided with a pair of adjustable cam pivot pin self energizing effort mechanism in described back-plate bottom, described cam pivot pin is between under two brake shoe brake cheek, slided on cam pivot pin outer round surface in the brake shoe brake cheek lower end, make the relative brake wheel of brake shoe brake cheek produce a wedge action, reach self-servo action; Described brake shoe brake cheek is by locating dowel pin and pull back spring location, and described brake wheel is installed on brake shoe brake cheek and the base plate front.Described pair of cams pivot pin self energizing effort mechanism produces a wedge action.A pair of adjustable cam pivot pin scalable brake shoe brake cheek and the gap between the brake wheel.
Hand brake of the present utility model can make brake shoe brake cheek be wedged between adjustable cam pivot pin and the brake wheel when brake activation owing to adopted self energizing effort mechanism, thereby increases braking force, shortening stopping distance, improves sensitivity, and driving ensures safety.
The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.
Accompanying drawing 1 among the figure unloads brake wheel, to show out its inner structure for according to the hand brake scheme drawing that is used for automobile that the utility model proposes;
Fig. 2 is a C-C cutaway view among Fig. 1.
Accompanying drawing 3 is the section-drawings along A-A among Fig. 1;
Accompanying drawing 4 be among Fig. 1 B to partial view;
Below in conjunction with details and the service condition of Fig. 1-4 detailed description according to the concrete device that the utility model proposes.
With reference to accompanying drawing 1 as can be known, hand brake of the present utility model comprises that a back-plate 1 is connected by brake shoe brake cheek locating dowel pin 16 and brake shoe brake cheek retainer spring 15 with brake shoe brake cheek 3, opening when work in brake shoe brake cheek 3 upper ends is to make back plate 6 supportings by torque arm 7 under the control of steering unit, slide on the outer round surface of the end face of two brake shoe brake cheek bottoms and cam pivot pin 12, can wedge between the brake wheel 11 thereby strengthen brake shoe brake cheek 3, reach self-servo action.And the return of two brake shoe brake cheek is pull back spring 4,10,14 returns by brake shoe brake cheek.
Find out that by accompanying drawing 25 pairs two brake shoe brake cheek 3 of locating dowel pin are that the return effect is spreaded in start-stop, and 12 one wedging self energizing efforts of cam pivot pin and thrust function can be adjusted the gap between brake shoe brake cheek 3 and the brake wheel 11.
By accompanying drawing 3 as can be known back-plate 1 be to connect with being connected of brake shoe brake cheek 3 by brake shoe brake cheek locating dowel pin 16 and brake shoe brake cheek retainer spring 15.
Can find out the pull back spring 14 of backguy 13 and backguy by accompanying drawing 4, they all are to work under hand operation mechanism, make backguy 13 and torque arm 7 normal returns.
With reference to accompanying drawing 1-4 as can be known, hand brake of the present utility model comprises a back-plate 1, be connected with the backguy joint mechanism on its outer rim, and link to each other with hand braking handle, and locating dowel pin 5 is arranged between two relative ends of two brake shoe brake cheek 3 on described base plate 1 front, torque arm 7 play supporting role under the control of steering unit by back plate 6, and two brake shoe brake cheek 3 are opened, simultaneously, two brake shoe brake cheek, 3 lower end surface can be slided on the outer round surface of cam pivot pin 12, thereby can strengthen between the brake shoe brake cheek 3 wedging brake wheels 11, reach self-servo action, increase braking force.And cam pivot pin 12 is adjustable, with compensation drg normal clearance.But the selection of the described angle of wedge should make pull back spring 10 and 4 guarantee brake shoe brake cheek 3 reliably return be prerequisite, its concrete numerical value is looked the automobile model, the parameter of pull back spring and the size of required braking force decide.The steering unit of present embodiment hand brake is a steel rope pull lever mechanism, and for laborsaving selection lever ratio that can be suitable, and scalable links to each other with hand braking handle.This hand brake rotates the enhancing of then wedging action effect at glancing impact such as brake wheel 11, thereby braking force is improved greatly, when advancing, automobile have a brake shoe brake cheek to have wedge, and when retreating, then another brake shoe brake cheek produces above-mentioned wedging, hand brake all can produce boosting function when retreating thereby guarantee to advance automobile, has guaranteed the brake safe reliability.
The utility model is not limited to the above embodiments.
Claims (1)
1, the hand brake that is used for automobile, it is made up of back-plate, locating dowel pin and back plate and torque arm, brake shoe brake cheek, brake wheel, a pair of adjustable cam pivot pin self energizing effort mechanism, it is characterized in that being provided with a pair of adjustable cam pivot pin self energizing effort mechanism in described back-plate bottom, described cam pivot pin is between under two brake shoe brake cheek, slided on cam pivot pin outer round surface in the brake shoe brake cheek lower end, make the relative brake wheel of brake shoe brake cheek produce a wedge action, reach self-servo action; Described brake shoe brake cheek is by locating dowel pin and pull back spring location, and described brake wheel is installed on brake shoe brake cheek and the base plate front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93224236 CN2179301Y (en) | 1993-09-15 | 1993-09-15 | Automotive hand brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93224236 CN2179301Y (en) | 1993-09-15 | 1993-09-15 | Automotive hand brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2179301Y true CN2179301Y (en) | 1994-10-12 |
Family
ID=33802319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93224236 Expired - Fee Related CN2179301Y (en) | 1993-09-15 | 1993-09-15 | Automotive hand brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2179301Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600736A (en) * | 2013-11-21 | 2014-02-26 | 福建信泰机械有限公司 | Adjustable parking brake |
-
1993
- 1993-09-15 CN CN 93224236 patent/CN2179301Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600736A (en) * | 2013-11-21 | 2014-02-26 | 福建信泰机械有限公司 | Adjustable parking brake |
| CN103600736B (en) * | 2013-11-21 | 2016-05-18 | 福建信泰机械有限公司 | A kind of adjustable EPB |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |