KR20130073392A - Brake device - Google Patents
Brake device Download PDFInfo
- Publication number
- KR20130073392A KR20130073392A KR1020110141215A KR20110141215A KR20130073392A KR 20130073392 A KR20130073392 A KR 20130073392A KR 1020110141215 A KR1020110141215 A KR 1020110141215A KR 20110141215 A KR20110141215 A KR 20110141215A KR 20130073392 A KR20130073392 A KR 20130073392A
- Authority
- KR
- South Korea
- Prior art keywords
- link
- push rod
- brake
- brake pedal
- master cylinder
- Prior art date
Links
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/44—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
- G05G1/46—Means, e.g. links, for connecting the pedal to the controlled unit
Abstract
Description
The present invention relates to a brake device, and more particularly, to a brake device having improved braking performance.
Generally, a hydraulic brake device used in a vehicle or the like is a brake pedal operated by a driver, a push rod connected to one side of the brake pedal, and a push rod connected to the other side of the push rod. A master cylinder that receives pressure from a rod, a wheel cylinder provided on each drive shaft of the vehicle, and a brake shoe that receives friction pressure from the master cylinder and applies frictional force to the drive shaft by applying pressure from the wheel cylinder. shoe). At this time, the pressing force transmission from the master cylinder to the brake shoe is made by working oil.
However, since the driver presses the brake pedal less than the braking force required by the brake shoe, a brake booster (not shown) is mounted on the brake device to reinforce the braking force.
In this case, the brake booster is composed of a cylinder device using a difference between the vacuum pressure and the atmospheric pressure, a mechanical device using a gear box, etc. In this case, a relatively complicated device configuration and a large space are required.
The present invention is to solve the above problems, it is provided between the brake pedal and the push rod to provide a sufficient auxiliary braking force while being able to be installed in a relatively simple and narrow space without a separate brake booster to the brake device Provided is a brake device including a toggle device.
The technical object of the present invention is not limited to the above-mentioned technical objects and other technical objects which are not mentioned can be clearly understood by those skilled in the art from the following description will be.
In order to achieve the above object, a brake pedal of the vehicle; A push rod having one side connected to the brake pedal; A master cylinder connected to the other side of the push rod to receive a pressing force from the push rod; And a toggle device provided between the brake pedal and the push rod to enhance braking force. It provides a brake device comprising a.
At this time, the toggle device, the first link is connected to one side of the brake pedal so as to interlock with the brake pedal to provide a pressing force, one side is hinged fixed, the other side is connected to the first link and reciprocated at a predetermined angle A second link, one side of which is connected to a connection point of the first link and the second link, the other side of which is connected to the push rod, and presses the push rod in conjunction with the first link and the second link. A third link; . ≪ / RTI >
According to the present invention, a hydraulic brake device used in a vehicle or the like contributes to the weight reduction of a vehicle by using a toggle device that provides sufficient auxiliary braking force while being able to be installed in a relatively simple and narrow space without a separate brake booster. And there is an advantage to reduce power consumption.
1 is a schematic view showing a general brake device,
2 is a schematic view showing a brake device according to an embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Of course.
Brake device according to an embodiment of the present invention, as shown in Figure 2, includes a brake pedal, push rod, master cylinder, toggle device and the connecting portion
The brake pedal is provided on the floor of the vehicle driver's seat to provide pressure to the brake device by the driver's foot.
The push rod provides the master cylinder with a pressing force provided from the brake pedal.
The master cylinder is connected to the push rod to receive a pressing force from the push rod, and finally to provide a brake force to the
The toggle device includes a first link, a fixed hinge, a second link and a third link.
In general, the toggle device refers to a mechanism having a rotational or rotational motion converted to a linear motion or vice versa. The toggle device used in the present invention converts the rotation of the brake pedal into a linear reciprocating motion of the master cylinder.
The first link provides the first pressing force F to the second link and the third link in the axial direction of the first link as the brake pedal is pressed. In addition, the fixed hinge is fixed to the vehicle to cause the second link to reciprocate at a predetermined angle about the fixed hinge. In addition, the second link receives a first pressing force (F) and is constrained to the fixed hinge to reciprocate at a predetermined angle. In addition, the third link receives the first pressing force F and is constrained to the master cylinder fixed to the vehicle to reciprocate at a predetermined angle and provide the second pressing force P to the push rod.
The connection part includes a
When the vehicle driver steps on the brake pedal, the toggle device may link the respective links to pressurize the hydraulic fluid in the master cylinder by linearly moving the piston in the master cylinder.
As shown in FIG. 2, when the angle between the push rod and the third link is defined as θ, the relationship between the first pressing force F and the second pressing force P is as follows.
P = F / 2tanθ
When θ is close to 0 °, the value of tanθ is close to 1, so the relationship of P ≒ F / 2 is established and the maximum braking force occurs in the brake device when θ = 0 °. Therefore, when the toggle device is configured such that θ is close to 0 °, the second pressing force P, which is twice as large as the first pressing force F that the driver provides to the brake pedal, is generated, which is sufficient for the brake shoe. To provide. As a result, by using such a toggle device, a sufficient braking force can be obtained without a separate brake booster mounted on the brake device of the vehicle.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.
100: brake pedal 200: push rod
300: master cylinder 400: wheel cylinder
410: brake shoe 500: toggle device
510: first link 520: fixed hinge
530: second link 540: third link
600: connection
Claims (2)
A push rod having one side connected to the brake pedal;
A master cylinder connected to the other side of the push rod to receive a pressing force from the push rod; And
A toggle device provided between the brake pedal and the push rod to enhance braking force; Brake device comprising a.
The toggle device,
A first link connected to one side of the brake pedal to interlock with the brake pedal providing a pressing force;
One side is hinged fixed, the other side is connected to the first link and the second link reciprocating at a predetermined angle,
A third link of which one side is connected to a connection point of the first link and the second link, and the other side is connected to the push rod and presses the push rod in cooperation with the first link and the second link; Brake device comprising a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110141215A KR20130073392A (en) | 2011-12-23 | 2011-12-23 | Brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110141215A KR20130073392A (en) | 2011-12-23 | 2011-12-23 | Brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20130073392A true KR20130073392A (en) | 2013-07-03 |
Family
ID=48987859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020110141215A KR20130073392A (en) | 2011-12-23 | 2011-12-23 | Brake device |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20130073392A (en) |
-
2011
- 2011-12-23 KR KR1020110141215A patent/KR20130073392A/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |