KR102094691B1 - A brake pad assembly for a vehicle using a flexible plate - Google Patents

Abstract

The present invention relates to a brake disc friction pad assembly for a vehicle using an elastic plate, and more specifically, by integrating a plurality of friction members compressed by a brake disc and providing braking force using an elastic plate, the number of parts for installing the friction member is minimized. As it can increase economic efficiency and work productivity, and the interlocking of the friction member can be made more flexible by the elastic plate, the brake pad friction pad for a vehicle using an elastic plate that maximizes the braking force by increasing the surface contact ratio between the friction member and the brake disc It's about assembly.
To this end, a back plate provided with a plurality of sets of a central hole, side holes formed on one side of the central hole, and a plurality of through holes constituting a set; a plurality of friction members generating frictional braking force while rubbing against a brake disc of a vehicle, and the plurality of Provides a friction member assembly for a vehicle brake disc using an elastic plate comprising: an elastic body elastically supporting the friction member module on a back plate; .

Description

A brake pad assembly for a vehicle using a flexible plate

The present invention relates to a brake disc friction pad assembly for a vehicle using an elastic plate, and more specifically, a plurality of friction members are integrally modularized to increase the elastic force according to the movement of the friction member, reduce the number of parts for installing the friction member, and economical efficiency. The present invention relates to a brake disc friction pad assembly for a vehicle using an elastic plate that increases work productivity.

In general, a friction pad assembly used in an aircraft or a railway vehicle having a large kinetic energy is formed by including a friction member having a predetermined shape and a back plate that is a fixing member supporting the friction member.

The friction member is in direct contact with a rotating brake disk interlocked with a rotating means of an aircraft or a railway vehicle to generate a friction force to brake the brake disk and rotating means.

At this time, since the kinetic energy of an aircraft or a railroad vehicle is large, unlike that of a general vehicle, in order to brake the aircraft or the railroad vehicle, it is necessary to apply a greater frictional force than the rotating means to brake.

In addition, the friction member should have little change in characteristics even when the temperature rises due to heat generated during friction, and should be formed of a material capable of quickly dissipating heat generated during friction to the outside.

Recently, the friction member is made of a sintered friction material, and a metal such as copper or iron is used as a material, and a non-metal material such as ceramic or graphite or metal is dispersed to adjust the friction characteristics of the friction member. do.

Accordingly, the friction pad assembly has excellent friction performance according to the heat resistance and thermal conductivity of the metal material constituting the friction member, mechanical strength and friction characteristics of the non-metal material.

The friction pad assembly is formed while a friction member having a predetermined shape made of sintered metal is supported and coupled to the back plate.

At this time, a plurality of friction members are independently coupled to one back plate, and are coupled so that there is no movement on the back plate by melt welding or brazing, riveting, and fixing pins.

Hereinafter, the friction pad assembly will be briefly described with reference to FIG. 1.

The friction pad assembly includes a back plate 1 and a plurality of friction means 2 reversibly fixed to the back plate 1.

Each friction means 2 includes a support plate 3, a friction member 4 made of a friction material and irreversibly fixed to the support plate 3, and each fixing hole 5 formed in the back plate 1 It includes a fixing pin (6) coupled to.

Further, each friction means 2 includes at least one washer 8 disposed between the support plate 3 and the back plate 1.

Such a friction pad assembly is connected to a rotating means of an aircraft or a railroad vehicle, so that the friction member 4 is in direct contact with a rotating brake disc to generate frictional force, thereby braking the brake disc and rotating means of the aircraft or railway vehicle.

On the other hand, between the friction member 4 and the back plate 1, a plurality of anti-rotation pins 7 are inserted and installed in the hole 95, and the friction member is rotated by the rotational force of the brake disk when the friction member 4 contacts the brake disk (4) prevents interlocking.

Accordingly, the friction member 4 can maximize the braking force.

However, the friction pad assembly according to the prior art described above has the following problems.

First, since the friction members 4 are independently installed on the back plate 1, there is a problem in that excessive mechanical parts are required to install the friction members 4.

Accordingly, there is a problem in that it takes a lot of labor for installation of the friction member 4, which not only decreases work productivity, but also increases production cost and decreases economic efficiency.

Second, due to the large number of anti-rotation pins (7) required for each friction member (4), there is a problem that the movement of the friction member (4) can not be made flexible.

That is, by being provided with an anti-rotation pin 7 for each edge of each friction member 4, movement of the friction member 4 can be limited by the anti-rotation pin 7, so that the friction member 4 and the brake It is difficult to maximize the surface contact ratio between disks.

Accordingly, the non-contact portion between the friction member 4 and the brake disc may occur, and there is a problem that it is difficult to maximize the braking force.

Republic of Korea Patent Publication No. 10-2016-0101869

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a plurality of elastic members by modulating a plurality of friction members using an elastic plate integrating a plurality of friction members and installing them on a back plate. It is intended to provide a brake disc friction pad assembly for a vehicle using an elastic plate that maximizes the braking force of a brake disc because the movement of a plurality of friction members can be made more flexible by interlocking the modules.

Another object of the present invention is to provide a brake disc friction pad assembly for a vehicle using an elastic plate that maximizes work productivity by reducing the number of parts for installing a friction member on a back plate, and improving work efficiency by reducing work hours.

In order to achieve the above object, the present invention provides a back plate provided with a plurality of sets of a central hole, side holes formed on one side of the central hole, and through holes constituting a set; generating frictional braking force while rubbing against a brake disc of a vehicle A friction member module comprising a plurality of friction members and an elastic plate made of an elastic material connecting and integrating the plurality of friction members; an elastic body elastically supporting the friction member module on a back plate: for a vehicle using an elastic plate comprising Provided is a brake disc friction pad assembly.

At this time, the friction member is provided with a support pin and an anti-rotation pin inserted into the back plate through an elastic plate, and a fixing pin riveted to the elastic plate, or a friction member has a support pin inserted into the back plate through an elastic plate. It is preferable that a fixing pin riveted to the elastic plate is installed.

In addition, the plurality of friction members are passed through the elastic plate is inserted into the central hole of the back plate, a support pin for coupling the friction member module to the back plate is provided, the end of the support pin from the central hole of the support pin It is preferable that a release prevention pin to prevent departure is combined.

At this time, the elastic body is corresponded to the central hole of the back plate and is in close contact with the back plate, the pin portion through which the support pin passes is formed, and is bent toward the elastic plate from the edge of the contact portion to support the elastic plate It is preferably composed of a bent portion.

In addition, the plurality of friction members is disposed on one surface of the elastic plate, it is preferable that a support plate for supporting the friction member is interposed between the friction member and the elastic plate.

The brake disc friction pad assembly for a vehicle using the elastic plate according to the present invention has the following effects.

First, by integrating a plurality of friction members via a single elastic plate, the interlocking of the friction members by the elastic plate can be effectively achieved.

Accordingly, the surface contact of the friction member can be made more flexible along the brake disc, thereby maximizing the brake braking force.

Second, by installing a friction member module integrally modularized with a plurality of friction members using an elastic plate on the back plate, it is possible to minimize the number of parts required to install the friction member on the back plate.

Accordingly, it is possible to reduce the production cost due to the reduction in the number of parts, and it is possible to increase the work productivity as the number of work hours is reduced.

Third, since the number of anti-rotation pins due to the integration of the plurality of friction members can be minimized, the movement of the friction members can be made more flexible.

Accordingly, since the movement of the friction member up, down, left, and right, that is, twisting on the back plate can be made flexibly, the effect of maximizing the brake braking force by increasing the surface contact ratio between the friction member and the brake disc during braking have.

Fourth, due to the dual configuration of the elastic body and the elastic plate, there is an effect that can maximize the elastic force of the friction member.

Fifth, it is possible to efficiently install the friction member module on the back plate through the shape design of the elastic plate.

Sixth, by supporting two or more support pins for each elastic plate, a plurality of support pins can perform the anti-rotation function of the friction member, so it is possible to delete the anti-rotation pins, thereby reducing the number of manufactured products. .

1 is a sectional view showing a main portion of a brake disc friction pad assembly of a vehicle according to the prior art
Figure 2 is an exploded perspective view showing a brake disc friction pad assembly for a vehicle using an elastic plate according to a preferred embodiment of the present invention
3 is a bottom perspective view showing a friction member module in a brake disc friction pad assembly for a vehicle using an elastic plate according to a preferred embodiment of the present invention
Figure 4 is a bottom view showing another form of the friction member module of the brake disc friction pad assembly for a vehicle using an elastic plate according to a preferred embodiment of the present invention
Figure 5 is a side view showing a brake disc friction pad assembly for a vehicle using an elastic plate according to a preferred embodiment of the present invention
Figure 6a is a cross-sectional view showing a brake disc friction pad assembly for a vehicle using an elastic plate according to a preferred embodiment of the present invention
Figure 6b is a cross-sectional view showing a configuration in which the anti-rotation pin is omitted in the brake disc friction pad assembly for a vehicle using an elastic plate according to a preferred embodiment of the present invention
7A and 7B are plan views showing a state in which a brake system applied with a brake disc friction pad assembly for a vehicle using an elastic plate according to a preferred embodiment of the present invention is applied.

The terms or words used in the specification and claims are not to be construed as being limited to ordinary or lexical meanings, and the inventor is based on the principle that the concept of terms can be properly defined in order to best describe his or her invention. It should be interpreted in a sense and concept consistent with the technical idea of the present invention.

Hereinafter, a brake disc friction pad assembly for a vehicle (hereinafter referred to as a 'friction pad assembly') using an elastic plate according to a preferred embodiment of the present invention will be described with reference to FIGS. 2 to 7B.

The friction pad assembly modulates a plurality of friction members that are in surface contact with the brake disc so that the elastic action is interlocked with each other.

Accordingly, the movement of the friction member can be made more flexible during contact between the brake disk and the friction member, thereby increasing the surface contact ratio without a gap between the brake disk and the friction member to maximize the braking force.

2, the friction pad assembly includes a back plate 100, a friction member module 200, an elastic body 300, a support pin 400, and a release prevention pin 500 do.

The back plate 100 serves as a base on which each component including the friction member 200 is installed.

The back plate 100 is provided on both sides with the brake disc 70 of the vehicle interposed therebetween, and is formed in an arc shape along the curvature of the wheel of the vehicle.

The shape of the back plate 100 is a known technique, and for convenience of description, only a part of the back plate 100 is illustrated and described herein.

The friction member module 200 is installed on the back plate 100, and a central hole 110 and a side hole 120 for installing the friction member module 200 are formed.

The central hole 110 is configured to allow the elastic plate to be coupled to the back plate 100 by allowing the support pin 400 to be described later to pass therethrough.

At this time, the central hole 110 is formed through the top and bottom of the back plate 100 in the drawing.

At this time, the central hole 110 passes through the upper and lower of the back plate 100, the bottom surface of the central hole 110 in the drawing is formed to be stepped to form a stepped (111).

In addition, the side hole 120 supports the friction member 200 module and, upon the contact between the friction member 200 and the brake disk 70 through the insertion of an anti-rotation pin to be described later, is applied to the rotational force of the brake disk 70. By this, the anti-rotation pin is inserted so that the friction member 200 is not rotated.

On the other hand, the bottom surface of the back plate 100 is provided with a dovetail plate (D) that is an intermediary means for transmitting power to the back plate 100.

The dovetail plate (D) is a known technique, detailed description will be omitted.

Next, the friction member module 200 is compressed to the brake disc 70 of the vehicle and exerts a braking force, and is installed on the back plate 100.

The friction member module 200 comprises a plurality of friction members as a unit.

Accordingly, the movement of the plurality of friction members may be interlocked with each other, so that the surface contact ratio according to the surface contact with the brake disk 70 can be increased.

2 and 3, the friction member module 200 includes a friction member 210, an elastic plate 220, a support plate 230, an anti-rotation pin 240, and a fixing pin ( 250).

The friction member 210 serves to decelerate the rotational force of the brake disk 70 while being in direct contact with the brake disk 70 of the vehicle, and is installed on the elastic plate 220.

The friction member 210 is provided through sintering of metal materials having excellent friction.

The material and fabrication of the friction member 210 are known techniques, and detailed descriptions thereof will be omitted.

As shown in FIG. 2, the friction member 210 is preferably provided in a rectangular shape, but the shape is not limited.

A plurality of such friction members 210 are provided.

And, the elastic plate 220 is a configuration in which the plurality of friction members 210 are coupled, and is installed on the back plate 100.

The elastic plate 220 is made of a material having excellent elasticity, and is formed to have a flat surface so that the friction member 210 can be stably combined.

At this time, the elastic plate 220 is made of a square shape, it may be variously formed as shown in FIG.

This is to allow the square shape friction member 210 to be efficiently disposed on the back plate 100 due to the nature of the shape of the back plate 100 having an arc shape.

Meanwhile, a plurality of through holes for coupling with the friction member 210 and coupling with the back plate 100 are formed in the elastic plate 220.

At this time, for convenience of explanation, a through hole for coupling with the friction member 210 is referred to as a first through hole 221, and a through hole through which the support pin 400, which will be described later, passes for coupling with the back plate 100, passes through the second through hole ( 222), and the through hole through which the anti-rotation pin 240 passes is referred to as a third through hole 223.

Then, the support plate 230 increases the binding force of the friction member 210 on the elastic plate 220, and is interposed between the friction member 210 and the elastic plate 220.

At this time, the support plate 230 is made of a corresponding shape for each friction member 210, and is provided in plural.

At this time, as shown in FIG. 2, the through holes H corresponding to the first through holes 221 and the third through holes 223 are also formed in the support plate 230.

Then, the anti-rotation pin 240 serves to suppress the rotation of the friction member 210 by the high-speed rotational force of the brake disk 70 when the friction member 210 and the brake disk 70 are in contact.

The anti-rotation pin 240 protrudes outward from the bottom surface of the friction member 210 in the drawing, and is inserted into the side hole 120 of the back plate 100 through the third through hole 223 of the elastic plate 220, The rotation of the friction member 210 is restrained.

At this time, the anti-rotation pin 240 is preferably installed in the center of the friction member 210.

Meanwhile, the anti-rotation pin 240 may be omitted as illustrated in FIG. 6B.

This is because a plurality of support pins 400 are installed for each elastic plate 220 as described above, so that the support pins 400 can also serve as a rotation preventing function of the friction member module 200, so that the rotation prevention pins It is also possible to omit the configuration of 240.

And, the fixing pin 250 serves to fix the friction member 210 to the elastic plate 220, and is installed on both sides of the bottom surface of the friction member 210 in the drawing.

That is, the fixing pin 250 is formed to protrude on both sides of the anti-rotation pin 240.

3, the fixing pin 250 is inserted into the first through hole 221 of the elastic plate 220 and then fixed by rivets, thereby fixing the friction member 210 to the elastic plate 220. Lose.

The fixing pin 250 is preferably formed shorter than the length of the anti-rotation pin 240.

Next, the elastic body 300 serves to provide elastic force to the friction member 210 together with the elastic plate 220.

That is, the present invention provides an elastic body 300 that provides elastic force to the movement of the elastic plate 220 and the interlocking of the friction member 210 by the elastic plate 220 in providing elastic force to the friction member 210. Through this, it is possible to maximize the braking force by maximizing the elastic force of the friction member 210.

5 and 6, the elastic body 300 is interposed between the back plate 100 and the elastic plate 220.

The elastic body 300 is preferably composed of a contact portion 310 and a bent portion 320, as shown in FIG.

The contact portion 310 is in close contact with the back plate 100, and forms a pin hole 311 corresponding to the central hole 110 of the back plate 100.

The pin hole 311 is a through hole through which the support pin 400 to be described later passes through the elastic body 300 through the second through hole 222 of the elastic plate 220.

The contact portion 310 is preferably formed in a circular shape.

Then, the bending portion 320 is bent upward from the edge of the contact portion 310, in order to provide an elastic force to the elastic body (300).

At this time, it is preferable that the bent portion 320 is bent to be round.

The elastic body 300 having such a configuration constitutes a groove portion inside.

As such, as the elastic body 300 is formed in a circular shape, it is possible to effectively exhibit elastic force in all directions.

Next, the support pin 400 serves to couple the friction member module 200 to the back plate 100 and prevents rotation of the friction member module 200.

The support pin 400 is inserted into the pin hole 311 of the elastic body 300 and the center hole 110 of the back plate 100 through the second through hole 222 of the elastic plate 220 as shown in FIG. 2. It is to be coupled to the friction member module 200 to the back plate 100.

The support pin 400 is composed of a head portion 410 and an insertion portion 420, the diameter of the head portion 410 is formed larger than the diameter of the insertion portion 420.

At this time, the locking portion 421 is formed along the periphery of the insertion portion 420.

The locking groove 421 is configured to be engaged by a release preventing pin 500 to be described later.

Next, the departure prevention pin 500 serves to connect the support pin 400 inserted into the central hole 110 of the back plate 100 to the back plate 100, and the locking groove of the support pin 400 421.

At this time, the departure prevention pin 500 is supported by the stepped plate 111 of the central hole 110 of the back plate 100, as shown in Figure 6, the support pin 400 is released from the central hole 110 Will prevent it.

In addition, the anti-separation pin 500 provides a vertical elastic force to the lifting of the support pin 400 on the central hole 110 when the friction member module 200 elastically acts on the back plate 100 to provide the friction member module 200 ) Plays a role to make the elastic action flexible.

The departure-prevention pin 500 is made of a material having elasticity, and as shown in FIG. 2, it is preferable that it consists of an inner portion 510 and an outer portion 520.

The inner portion 510 is fixed to the lower end of the support pin 210, and is formed in a shape corresponding to the diameter of the support pin 210.

The outer portion 520 is disposed on the stepped 111 of the back plate 100 to serve to support the support pin 210, and is formed to have a diameter larger than the diameter of the support pin 210.

At this time, the outer portion 520 is formed integrally with the inner portion 510 to share the elastic force.

Hereinafter, the operation of the brake disc friction pad assembly for a vehicle using an elastic plate having the above-described configuration will be described with reference to FIGS. 7A and 7B.

7A is a plan view showing a state in which a friction pad assembly is disposed on both sides with a brake disk 70 of a vehicle interposed therebetween, and is a state before the vehicle is braked.

Thereafter, when the brake system is operated, both friction pad assemblies move toward both sides of the brake disk 70 to compress the brake disk 70 as shown in FIG. 7B.

At this time, the friction member 210 decelerates the rotational force of the high-speed brake disc 70, and at this time, the support pin 400 and the anti-rotation pin 240 are inserted into the side hole 120 of the back plate 100 to interfere. , It is possible to increase the rotation inhibiting force of the brake disc 70 of the friction member 210.

Accordingly, it is possible to maximize the braking power of the vehicle.

On the other hand, as described above, in the process of the friction member 210 in contact with the brake disk 70 to inhibit the rotational force of the brake disk 70, the friction member 210 is flexible along the flow direction of the brake disk 70 It works.

That is, in the process of the frictional force between the friction member 210 and the brake disk 70, an elastic force is generated on the elastic plate 220. Since a plurality of friction members 210 are installed on the elastic plate 220, The friction members 210 are interlocked with the elastic force of the elastic plate 220.

At this time, when the force acts vertically toward the friction member module 200, the elastic body 300 is vertically stretched on the back plate 100, and the anti-rotation pin 240 is vertical along the side hole 120. The support pin 400 is also moved vertically along the central hole 110 while receiving the elastic force of the departure prevention pin 500.

 In addition, when the force acts on the friction member module 200 twisted, the elastic body 300 exerts elastic force in all directions as the elastic plate 220 moves between the elastic plate 220 and the back plate 100. , The movement of the friction member module 200 can be operated more flexibly.

Accordingly, since the plurality of friction members 210 can move more flexibly along the brake disk 70, the plurality of friction members 210 can increase the surface contact ratio with the brake disk 70.

Through the elastic action of the elastic plate 220 and the elastic body 300, the friction member module 200 can be flexibly contacted along the brake disk 70 while maximizing the braking force for the brake disk 70. .

As described so far, the brake disc friction pad assembly for a vehicle using the elastic plate according to the present invention is interposed between the elastic plate and the back plate and the elastic plate integrating a plurality of friction members as a means for providing elastic force to the movement of the friction member. To form an elastic body that provides elastic force.

Accordingly, the elastic force according to the movement of the friction member can be maximized, and the number of parts for installing the friction member can be reduced to increase the economic efficiency and the economical efficiency by reducing the number of work hours.

In the above, the present invention has been described in detail with respect to the described embodiments, but it is apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and it is natural that such modifications and modifications belong to the appended claims.

100: back plate 110: central hole
111: stepped 120: side hole
200: friction member module 210: friction member
220: elastic plate 221: first through
222: Second pass 223: Third pass
230: support plate 240: anti-rotation pin
250: fixing pin 300: elastic body
310: contact portion 311: pin hole
320: bend 400: support pin
410: head portion 420: insertion portion
421: Jam groove 500: Departure prevention pin
510: inner portion 520: outer portion

Claims (5)

In the brake disc friction pad assembly for a vehicle using an elastic plate,
A back plate 100 having at least two central holes 110 and side holes 120 formed on both sides of the central hole 110;
A plurality of friction members 210 for generating a braking friction force on the brake disc of the vehicle, through holes 222 through which a support pin passes, through holes 223 through which an anti-rotation pin passes, and the friction member 210 for coupling An elastic plate 220 made of an elastic material having a through hole 221 and a through hole 221 for coupling with the friction member 210 to fix the friction member 210 to the elastic plate 220 A friction member module 200 having a pin 250;
A support pin 400 penetrating through the through hole 222 and the central hole 110 and fixing the friction member module 200 to the back plate 100 by being coupled to an escape prevention pin 500 at one end;
An elastic body 300 in which the support pin 400 is inserted and positioned between the back plate 100 and the elastic plate 220 to elastically support the friction member module 200 to the back plate 100;
The anti-rotation pin 240 which protrudes outward from the bottom surface of the friction member 210 and is inserted into the side hole 120 through the through hole 223.
It characterized in that it comprises a brake disc friction pad assembly. delete delete The method of claim 1, wherein the elastic body 300 is
A contact portion 310 corresponding to a central hole 110 of the back plate 100, closely contacting the back plate 100, and having a pin hole 311 through which the support pin 400 passes, and
The bending portion 320 is bent toward the elastic plate 220 from the edge of the contact portion 310, and supports the elastic plate 220.
It characterized in that it comprises a brake disc friction pad assembly. According to claim 1,
A brake disc friction pad assembly further comprising a support plate 230 positioned between the friction member 210 and the elastic plate 220 and supporting the friction member 210.

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