CN201769806U - Transmission hand braking mechanism and automobile - Google Patents
Transmission hand braking mechanism and automobile Download PDFInfo
- Publication number
- CN201769806U CN201769806U CN2010202821062U CN201020282106U CN201769806U CN 201769806 U CN201769806 U CN 201769806U CN 2010202821062 U CN2010202821062 U CN 2010202821062U CN 201020282106 U CN201020282106 U CN 201020282106U CN 201769806 U CN201769806 U CN 201769806U
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- hand braking
- lever
- transmission
- braking
- tension cable
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Abstract
The utility model discloses a transmission hand braking mechanism and an automobile provided with the same. The transmission hand braking mechanism comprises a primary transmission mechanism, a secondary transmission mechanism and a parking braking pull cable; the primary transmission mechanism includes a hand braking handle and a primary tensioning pull cable; the secondary transmission mechanism includes a lever and a secondary tensioning pull cable; a first end of the lever is connected with the primary tensioning pull cable and a second end of the lever is hinged with an automobile body floor so that the lever can rotate around a hinged supporting point of the lever with the automobile body floor; a first end of the secondary tensioning pull cable is connected between the first end and the second end of the lever; and a second end of the secondary tensioning pull cable is connected with the parking braking pull cable. The transmission hand braking mechanism can greatly improve hand braking lever ratio, effectively enhance parking braking capacity and further ensure safety of vehicles.
Description
Technical field
The utility model relates to the brake system of car technical field, relates in particular to a kind of transmission hand braking mechanism and has the automobile of this transmission hand braking mechanism.
Background technology
Brake system is to use on the automobile so that extraneous (mainly being the road surface) applies certain power in some part of automobile (mainly being wheel), thereby it is carried out a series of special arrangements of forced brake to a certain degree.
The effect of brake system comprises: make the automobile in travelling carry out forced deceleration even parking according to the requirement of chaufeur; Make the automobile of stagnation of movement (is included on the ramp) steadily halt under the different kinds of roads condition; Make the car speed of descent run keep stable.
Brake system can be divided into service braking system, emergency brake system, secondary braking sytem and auxiliary braking system etc.With so that the brake system that the automobile in travelling underspeeds even stops is called service braking system; With so that the resident brake system as you were of the automobile of stagnation of movement then be called emergency brake system; Under the situation that service braking system lost efficacy, guarantee that the brake system that automobile still can be realized slowing down or stop is called secondary braking sytem; When driving, auxiliary service braking system reduces the speed of a motor vehicle or keeps the speed of a motor vehicle stable, but the brake system of vehicle emergency stop can not be called auxiliary braking system.In above-mentioned each brake system, the service brake emergency brake system of unifying is that each automobile is all prerequisite.
What emergency brake system and service braking system were distinguished to some extent is, service braking system all adopts hydraulic braking or compression air brake at present, but what most emergency brake systems adopted is physical construction, that is to say that braking during standstill power derives from the hand of chaufeur or the power that pin is applied to parking and braking mechanism.The size of braking during standstill power depends on the size of the application of force.
China is vast in territory, and the various places landform also is not quite similar, and parking and braking mechanism need be tackled various stressing conditions.And, along with car enters family more and more, increasing female driver appears, and the female driver arm strength is less relatively, is difficult to the excessive parking and braking mechanism of manipulation power, and the traveling comfort of braking during standstill has been proposed increasing challenge.
At present, in the most cars and Light-duty Vehicle that touched, braking during standstill technology great majority adopt hand braking handle mechanism, and its principle is: parking brake connects hand braking drag-line, is connected to rear brake by hand braking drag-line, and the braking during standstill masterpiece is used for trailing wheel.
Whether vehicle can Parking on the gradient, depends on the braking during standstill power that produces rear brake and the vehicle size at the sliding force of the direction of slide down in the road.If braking during standstill power is greater than the size of sliding force, then vehicle will stop on the ramp; Otherwise vehicle will slip the slope.
Vehicle is relevant with three factors at the sliding force of ramp gliding direction: the angle in ramp, the coefficient of friction in ramp and vehicle weight.Angle is big more, and coefficient of friction is more little, and vehicle weight is heavy more, and then the sliding force that is produced is big more; Otherwise then the sliding force that is produced is more little.
Braking during standstill power is determined by following factor: act on the manual steering force on the parking brake, the lever ratio of handbrake mechanism, the mechanical efficiency of halting mechanism and the braking efficiency factro of rear brake.Manual steering force, lever ratio, mechanical efficiency and braking efficiency factro are big more, and then the braking during standstill of Chan Shenging is big more; Otherwise then the braking during standstill of Chan Shenging is more little.
In general, the fluctuation of the mechanical efficiency of emergency brake system is little, and braking efficiency factro is by rear brake structure and Friction disk decision, and the lever ratio of handbrake mechanism is decided by handbrake mechanism.
The leverage of traditional hand braking mechanism all is to be integrated in the hand braking handle, and lever ratio depends on the length of handle.In order to strengthen lever ratio, often adopt the design of long hand braking handle.
Yet, because the manned vehicle private user is increasing now, a lot of clients are more and more harsher to the space requirement at grip console place, such as placing carry-on articles such as water tumbler, mobile phone, cause automobile designers in the hand braking handle of design, all can consider short and small type special construction, for the user reserves enough storage spaces, the hand braking handle of Z type short handle is exactly wherein a kind of, but because handlebar stem is long shorter, directly cause its lever ratio tradition hand braking less than normal, therefore do not provide bigger braking during standstill power, the danger on slide slope is arranged when causing vehicle on the ramp.
Therefore, press for and provide a kind of follow-on transmission hand braking mechanism to overcome the above problem that exists in the prior art.
The utility model content
The technical problems to be solved in the utility model provides a kind of transmission hand braking mechanism, and it is used to improve the hand brake lever ratio, thereby effectively improves the braking during standstill ability.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
Technical scheme 1: a kind of transmission hand braking mechanism, it comprises the one-level transmission device, secondary transmission device and braking during standstill drag-line, described one-level transmission device comprises hand braking handle and one-level tension cable, described secondary transmission device comprises lever and secondary tension cable, first end of described lever is connected with described one-level tension cable, its second end and body platform are hinged, thereby described lever can rotate around the hinged point with body platform, first end of described secondary tension cable is connected between first end and second end of described lever, and second end of described secondary tension cable connects with described braking during standstill drag-line.
Technical scheme 2: as technical scheme 1 described transmission hand braking mechanism, wherein, described secondary transmission device also comprises pull back spring, and described pull back spring is connected on the described lever, be used for when removing braking during standstill, the transmission hand braking mechanism being returned to initial position.
Technical scheme 3: as technical scheme 2 described transmission hand braking mechanisms, wherein, an end of described pull back spring is connected to first end of described lever, and its other end is fixed on the body platform.
Technical scheme 4: as technical scheme 3 described transmission hand braking mechanisms, wherein, described secondary tension cable is connected the medium position place of described lever.
Technical scheme 5: as technical scheme 1 described transmission hand braking mechanism, wherein, described one-level transmission device also comprises change driving cam mechanism, described hand braking handle and described one-level tension cable connect by described change driving cam mechanism, along with described hand braking handle drives the rotation of described change driving cam mechanism, described one-level tension cable can be reeled around described change driving cam mechanism.
Technical scheme 6:, wherein, be mutually permanently connected between described hand braking handle and the described change driving cam mechanism as technical scheme 5 described transmission hand braking mechanisms.
Technical scheme 7: as technical scheme 6 described transmission hand braking mechanisms, wherein, described one-level transmission device also comprises hand braking handle mounting bracket, has jointed shaft on the described hand braking handle mounting bracket, described change driving cam mechanism is hinged on the hand braking handle mounting bracket by described jointed shaft, and described change driving cam mechanism can rotate around the jointed shaft on the described hand braking handle mounting bracket.
Technical scheme 8: as technical scheme 1 described transmission hand braking mechanism, wherein, described hand braking handle is the hand braking handle of Z type short handle.
Technical scheme 9: as technical scheme 1 described transmission hand braking mechanism, wherein, also comprise the secondary balance block, described secondary tension cable connects with described braking during standstill drag-line by described secondary balance block.
Technical scheme 10: a kind of automobile is characterized in that: it comprises as each described transmission hand braking mechanism in the technical scheme 1 to 9.
Transmission hand braking mechanism of the present utility model is by increasing the secondary transmission device on the basis of original halting mechanism, like this, hand brake lever is made of one-level lever and second lever, correspondingly lever ratio is the two a product of one-level lever and second lever, utilize the two-stage transmission device that Parking power is amplified, wider lever ratio is provided, even less hand braking the situation of manual steering force under, also can export bigger braking during standstill power, thereby, solve the problem of hand braking handling comfort, and improved the braking during standstill ability, the safety that effectively improves vehicle.In addition, the this of Z type short handle designs than the short hand brake handle hand braking handle in the transmission hand braking mechanism of the present utility model by for example adopting, increase the storage space of console, thereby reserved bigger space to console, to leaving more design leeway on the parking brake layout, help the console design.
Below by describing the preferred specific embodiment with reference to the accompanying drawings in detail, disclose other aspects of the present utility model and feature more significantly.But should be known in this accompanying drawing only for task of explanation designs, not as the qualification of scope of the present utility model, because the qualification of scope should be with reference to additional claim.Should also be appreciated that unless otherwise indicated, accompanying drawing only tries hard to illustrate conceptually structure described herein and flow process, unnecessary drafting to scale.
Description of drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in detail, wherein:
Fig. 1 is the designs simplification scheme drawing according to the transmission hand braking mechanism of a kind of embodiment of the utility model.
The specific embodiment
With reference now to accompanying drawing, describe the utility model embodiment preferred, wherein identical label is used for guiding identical element all the time.Purpose for explaining provides many details in the following description, understands in depth so that the utility model provided.Yet this may be conspicuous, does not have these details, and this utility model still can be implemented.
Automobile of the present utility model comprises a kind of transmission hand braking mechanism 100.Fig. 1 is the designs simplification scheme drawing according to the transmission hand braking mechanism of a kind of embodiment of the utility model.As shown in Figure 1, the transmission hand braking mechanism 100 of a kind of embodiment of the utility model comprise one-level transmission device 1, the secondary transmission device 2 that is connected with one-level transmission device 1 and with secondary transmission device 2 bonded assembly braking during standstill drag-lines 3.Preferably, secondary transmission device 2 is connected with braking during standstill drag-line 3 by secondary balance block 24.
One-level transmission device 1 comprises hand braking handle 11, becomes driving cam mechanism 12, one-level tension cable 13 and hand braking handle mounting bracket 14.Hand braking handle 11 and one-level tension cable 13 connect by becoming driving cam mechanism 12, and along with hand braking handle 11 drives the rotation that becomes driving cam mechanism 12, one-level tension cable 13 can be reeled around becoming driving cam mechanism 12.In this specific embodiment, hand braking handle 11 is the hand braking handle of a kind of Z type short handle, to increase the storage space of console.Be mutually permanently connected between hand braking handle 11 of Z type short handle and the change driving cam mechanism 12.Hand braking handle mounting bracket 14 is connected on the body platform 200, and has a jointed shaft (not shown) on it.Become driving cam mechanism 12 jointed shafts and be hinged on the hand braking handle mounting bracket 14, and becoming driving cam mechanism 12 can rotate around the jointed shaft on the hand braking handle mounting bracket 14 by hand braking handle mounting bracket 14.One-level tension cable 13 has the first relative end 131 and second end 132, and first end 131 of one-level tension cable 13 is connected with change driving cam mechanism 12.
Secondary transmission device 2 comprises lever 21, secondary tension cable 22 and pull back spring 23.Lever 21 has the first relative end 211 and second end 212, first end 211 of lever 21 is connected with second end 132 of one-level tension cable 13, second end 212 of lever 21 is hinged with body platform 200, and lever 21 can rotate around the hinged point 4 with body platform 200.In present embodiment, first end 211 of lever 21 is the upper end of lever 21, and second end 212 of lever 21 is the lower end of lever 21.Secondary tension cable 22 has first end 221 and second end 222.First end 221 of secondary tension cable 22 is connected the upper end 211 of lever 21 and connection location 214 places between the lower end 212.Preferably, first end 221 of secondary tension cable 22 is connected with the middle part of lever 21.Second end 222 of secondary tension cable 22 is connected with secondary balance block 24, draws two braking during standstill drag-lines 3 from secondary balance block 24, is respectively applied for two rear wheeies brake (not shown) of control vehicle, thereby carries out braking during standstill.Also be connected with a pull back spring 3 in the upper end 211 of lever 21, be used for when removing braking during standstill, transmission hand braking mechanism 100 being returned to initial position.The other end of pull back spring 3 is fixed on the body platform 200.
The principle of work of transmission hand braking mechanism 100 of the present utility model is: when the needs braking during standstill, chaufeur lifts the hand braking handle 11 of Z type short handle, the hand braking handle 11 of Z type short handle drives the rotation that becomes driving cam mechanism 12, thereby one-level tension cable 13 is reeled around becoming driving cam mechanism 12, one-level tension cable 13 is to left movement, at this moment, behind one-level transmission device 1, the braking during standstill pulling force that reaches one-level tension cable 13 has been become driving cam mechanism 12 and has been amplified.Then, the upper end 211 of one-level tension cable 13 pull lever 21 makes lever 21 rotate counterclockwise around hinged point 4, and at this moment, pull back spring 23 is stretched, and along with the rotation of lever 21, drives secondary tension cable 22 also to left movement.At this moment because the power amplification of lever 21, the braking during standstill pulling force that reaches secondary tension cable 22 is further amplified, secondary tension cable 22 pulling secondary balance blocks 24 are to left movement, two braking during standstill drag-lines 3 of final pulling are controlled two rear wheel brake actions respectively, thereby finish the Parking operation.
Transmission hand braking mechanism of the present utility model 100 is by increasing secondary transmission device 2 on the basis of original halting mechanism, like this, hand brake lever is made of one-level lever and second lever, and correspondingly lever ratio is the two a product of one-level lever and second lever.Thereby, even under the situation of less hand braking handle 11 actuating forces, also can export bigger braking during standstill power.In addition, hand braking handle 11 also can adopt for example this shorter handle design of the hand braking handle of Z type short handle, increase the storage space of console, thereby help console design and attractive in appearance, the better optimize design space is provided for the automobile design manufacturer that is used to dwindle hand braking design size.
When transmission hand braking mechanism 100 of the present utility model needs to remove Parking, unclamp the hand braking handle 11 of Z type short handle, become driving cam mechanism 12 counter-rotation, thereby one-level tension cable 13 unclamps coiling gradually around becoming driving cam mechanism 12.At this moment, because the elastic-restoring force effect of pull back spring 23, pull back spring 23 trends towards returning to initial condition from extended state, and under the elastic force effect of pull back spring 23, one-level tension cable 13 moves right, lever 21 clockwise rotates around hinged point 4, along with the rotation of lever 21, secondary tension cable 22 also moves right, thereby removes the pulling force to two braking during standstill drag-lines 3, transmission hand braking mechanism 100 is returned to initial position, realize removing Parking.
Mono-transmission levers ratio at the hand braking manipulation assembly of tradition adopts if adopt long hand braking signaling handle, then can cause the console volume to increase, and has influence on manipulation space and arranges.If adopt short hand braking signaling handle, then can directly cause its lever ratio less than normal, thereby enough braking during standstill power can not be provided and may cause vehicle on the ramp, to slip sloping problem.Transmission hand braking mechanism of the present utility model 100 is by on the basis of original hand braking self leverage, increased hand braking secondary transmission device 2, utilize the two-stage transmission device that Parking power is amplified, the lever that increases behind the hand braking secondary transmission device 2 is greatly improved to original hand brake lever ratio, wider lever ratio is provided, so just overcome the shortcoming that Z type short handle hand braking handle can not satisfy bigger Parking power, thereby reserved bigger space to console, to leaving more design leeway on the parking brake layout, correspondingly, even cooperate the low efficiency of short and small ansa hand braking, also can be under the situation of less hand braking actuating force, produce bigger braking during standstill power, thereby solved the problem of hand braking handling comfort, and improved the braking during standstill ability, effectively improved the safety of vehicle.
Though the utility model is in this demonstration and description, wherein imagination is most realistic and embodiment preferred, can recognize, in scope of the present utility model, can make a change, be not to be only limited to details described herein, but to meet the four corner of claims, to comprise any and all equality units and equipment.
Claims (10)
1. transmission hand braking mechanism, it comprises one-level transmission device and braking during standstill drag-line, described one-level transmission device comprises hand braking handle and one-level tension cable, it is characterized in that: also comprise the secondary transmission device, described secondary transmission device comprises lever and secondary tension cable, first end of described lever is connected with described one-level tension cable, its second end and body platform are hinged, thereby described lever can rotate around the hinged point with body platform, first end of described secondary tension cable is connected between first end and second end of described lever, and second end of described secondary tension cable connects with described braking during standstill drag-line.
2. transmission hand braking mechanism as claimed in claim 1, wherein, described secondary transmission device also comprises pull back spring, described pull back spring is connected on the described lever, is used for when removing braking during standstill the transmission hand braking mechanism being returned to initial position.
3. transmission hand braking mechanism as claimed in claim 2, wherein, an end of described pull back spring is connected to first end of described lever, and its other end is fixed on the body platform.
4. transmission hand braking mechanism as claimed in claim 3, wherein, described secondary tension cable is connected the medium position place of described lever.
5. transmission hand braking mechanism as claimed in claim 1, wherein, described one-level transmission device also comprises change driving cam mechanism, described hand braking handle and described one-level tension cable connect by described change driving cam mechanism, along with described hand braking handle drives the rotation of described change driving cam mechanism, described one-level tension cable can be reeled around described change driving cam mechanism.
6. transmission hand braking mechanism as claimed in claim 5 wherein, is mutually permanently connected between described hand braking handle and the described change driving cam mechanism.
7. transmission hand braking mechanism as claimed in claim 6, wherein, described one-level transmission device also comprises hand braking handle mounting bracket, has jointed shaft on the described hand braking handle mounting bracket, described change driving cam mechanism is hinged on the hand braking handle mounting bracket by described jointed shaft, and described change driving cam mechanism can rotate around the jointed shaft on the described hand braking handle mounting bracket.
8. transmission hand braking mechanism as claimed in claim 1, wherein, described hand braking handle is the hand braking handle of Z type short handle.
9. transmission hand braking mechanism as claimed in claim 1 wherein, also comprises the secondary balance block, and described secondary tension cable connects with described braking during standstill drag-line by described secondary balance block.
10. automobile, it is characterized in that: it comprises as each described transmission hand braking mechanism in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202821062U CN201769806U (en) | 2010-08-05 | 2010-08-05 | Transmission hand braking mechanism and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202821062U CN201769806U (en) | 2010-08-05 | 2010-08-05 | Transmission hand braking mechanism and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201769806U true CN201769806U (en) | 2011-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202821062U Expired - Fee Related CN201769806U (en) | 2010-08-05 | 2010-08-05 | Transmission hand braking mechanism and automobile |
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| Country | Link |
|---|---|
| CN (1) | CN201769806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738275A (en) * | 2017-10-31 | 2018-02-27 | 上海理工大学 | A kind of cam extension spring mechanism of mechanical arm gravity compensation |
-
2010
- 2010-08-05 CN CN2010202821062U patent/CN201769806U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738275A (en) * | 2017-10-31 | 2018-02-27 | 上海理工大学 | A kind of cam extension spring mechanism of mechanical arm gravity compensation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20190805 |