KR102294886B1 - Apparatus for measuring break surface of Vehicle - Google Patents

Abstract

The present invention relates to an apparatus for measuring a brake surface of a vehicle, and more particularly, to an apparatus for measuring a brake surface of a vehicle, capable of accurately measuring the amount of surface unevenness (planarity change) of a braking part of a brake disc for a vehicle. The apparatus for measuring a brake surface of a vehicle includes a body part; a mounting part detachably connected to a wheel support rotatably mounted on a brake disc for a vehicle; a handle part for applying a force so that the mounting part is fixed to the wheel support or released from the wheel support; a measuring part for measuring the surface of the braking part; and a position adjusting part for allowing the measuring part to measure a position spaced inward from the edge of the braking part by a predetermined distance.

Description

Automotive brake surface measuring device {Apparatus for measuring break surface of Vehicle}

The present invention relates to an automobile brake surface measuring apparatus, and more particularly, to an automobile brake surface measuring apparatus capable of accurately measuring the amount of surface unevenness (planarity change) of a braking part of a brake disc for a vehicle.

In general, a brake device of a vehicle is a device used to decelerate or stop the vehicle, and is an essential braking system for the vehicle.

The brake disc used in the braking system performs braking of the vehicle by discharging kinetic energy of the vehicle as thermal energy using frictional force generated through friction with a friction member.

A conventional brake disc is provided with a braking surface, which is a friction part for generating braking force through friction with a friction member, and a hub (also called a hat part) for coupling the brake disc to a vehicle body. It is disclosed in Korean Patent Publication No. 10-2013-0017376.

Since the braking surface is a part that frictionally contacts the brake pad and generates braking force, the entire surface of the braking surface must be uniform in order to maximize the friction force with the pad.

That is, the difference in the height of the surface that occurs during machining of the brake surface (the amount of vertical change in the position of the brake surface relative to the hub assembly surface, the amount of flatness change, also called RUN-OUT) is within a certain standard (e.g., within 30 μm). ) should be

According to Korean Patent Registration No. 10-1808282, a disk was installed on a fixed or rotating pedestal, and the product was rotated 360 degrees to measure the RUN-OUT of the braking surface. However, when the pedestal is fixed, there is a problem in that the hub seat surface is damaged due to friction between the reference surface (support surface) of the pedestal and the hub seat surface. In addition, the volume or installation space of the device for measuring the surface of the braking surface becomes very large, and there is a disadvantage that it is difficult to move easily.

In order to solve this problem, a measuring device that can be easily moved by an operator has been developed, but in the case of such a measuring device, the fastening force for mounting the measuring device to the disk varies depending on the skill level of the operator, so that the measured value is poor. In addition, when measuring the RUN-OUT of the braking surface, it is necessary to measure a position spaced apart by a predetermined distance (5 mm) inward from the edge of the disk, but in the case of a conventional measuring device, it is impossible to accurately measure the measurement position did.

1. Republic of Korea Patent Publication No. 10-2013-0017376 2. Korea Registered Patent No. 10-1808282

An object of the present invention is to provide a portable type vehicle brake surface measuring apparatus that can be easily moved by an operator by reducing weight and volume to solve the above problems.

Another object of the present invention is to provide an automobile brake surface measuring device capable of fastening the automobile brake surface measuring device to a wheel support of a disk with a constant fastening force regardless of the skill level of the operator.

Another object of the present invention is to provide a vehicle brake surface measuring device capable of accurately measuring a position to be measured on the braking surface of a brake disc.

An object of the present invention as described above is in an automobile brake surface measuring device for measuring the amount of unevenness on the surface of a braking unit of a brake disc for a vehicle, provided with a body part and one side of the body part to be rotatably mounted on a brake disc for a vehicle A mounting part detachably connected to the wheel support, the handle part provided on the other side of the body part to apply a force to fix the mounting part to the wheel support body or to be released from the wheel support body, and measuring the surface of the brake part A vehicle, characterized in that it has a position adjusting part connected to the part and the measuring part and rotatably provided on the side of the body part so that the measuring part measures a position spaced apart by a predetermined distance inward from the edge of the braking part. This is achieved by means of a brake surface measuring device.

Here, the mounting portion includes a mounting pivot bar rotatably connected to the body portion by movement of the handle, a push bar rotatably connected to an end of the mounting pivot bar and mounted on the wheel support by moving in the vertical direction; A return spring for applying an elastic force to the push bar may be provided.

In addition, the body portion includes a horizontal body portion, a vertical body portion extending in a vertical direction from the horizontal body portion, and a horizontal support portion extending in a horizontal direction from the vertical body portion, the mounting rotation bar is the vertical body portion It is rotatably connected to the upper end, and the push bar may be connected through the horizontal support unit.

On the other hand, the handle portion is rotatably connected to the handle, one end is rotatably connected to the handle and the other end is connected to the mounting rotation bar, one end is rotatably connected to the handle and the other end is connected to the horizontal body portion A second connection bar may be provided.

Furthermore, the mounting portion may further include a mounting force maintaining spring that provides a predetermined fixed size of mounting force even when the thickness of the wheel support is changed.

In this case, the mounting portion further includes a mounting force adjusting nut fastened to the press bar and movable up and down, and a retaining plate disposed above the push bar so that the push bar passes through, and the return spring is the mounting force adjusting nut. and the horizontal support part, and the mounting force maintaining spring may be disposed between the mounting force adjusting nut and the holding plate.

On the other hand, the position control unit further includes a position adjustment bar rotatably connected to the side of the body portion, and a position adjuster rotatably connected to an end of the position adjustment rotation bar, the measuring bar of the measuring unit is the position adjustment rotation It may come into contact with the surface of the brake part through the end of the bar and the position adjuster.

For example, the position adjuster further includes a position adjustment through hole in the form of a long hole through which the measurement bar passes, and a contact portion in contact with the edge of the braking unit, wherein the measurement bar is located in the first region of the position adjustment through hole, When the position adjustment rotation bar rotates and the contact part contacts the edge of the braking part, the measuring bar may be positioned at a position spaced apart from the edge of the braking part by a predetermined distance inward.

In addition, when the measuring bar is located in the second region of the position adjustment through hole and the position adjuster is rotated, the contact portion may be spaced apart from the edge of the braking unit.

According to the vehicle brake surface measurement apparatus of the present invention as described above, it is possible to provide a portable type vehicle brake surface measurement apparatus that can be easily moved by an operator by reducing the weight and volume.

In addition, according to the present invention, it is possible to fasten the vehicle brake surface measuring device to the wheel support with a constant fastening force regardless of the skill level of the operator, thereby minimizing the defect rate of the measured value.

In addition, according to the present invention, it is possible to accurately measure a position to be measured on the surface of the braking surface of the brake disc, so that a high-quality measured value can be obtained.

1 is a one-way perspective view of a vehicle brake surface measuring device according to an embodiment of the present invention;
2 is a perspective view in another direction of a vehicle brake surface measuring device according to an embodiment of the present invention;
3 is a side view showing a state in which the handle is advanced;
4 is a side view showing the mounting portion;
5 is a perspective view showing a ready state before the vehicle brake surface measuring device is mounted on the wheel support of the brake disc;
6 is a perspective view showing a state in which the vehicle brake surface measuring device is mounted on the wheel support of the brake disc;
7 is a perspective view of a state in which the position adjuster of the position adjuster is in contact with the edge of the braking unit;
Fig. 8 is a plan view of Fig. 7;
9 is a plan view showing a position adjustment through hole;
10 is a perspective view of a state in which the position adjuster of the position adjuster is spaced apart from the edge of the brake unit;
11 is a plan view of FIG. 10 .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise defined, all terms in this specification have the same general meaning as understood by those skilled in the art to which the present invention belongs, and if a term used in this specification conflicts with the general meaning of the term is subject to the definition used herein. On the other hand, the configuration or control method of the device to be described below is only for explaining the embodiment of the present invention and not for limiting the scope of the present invention, and the same reference numbers used throughout the specification refer to the same components. represent them

Hereinafter, a vehicle brake surface measuring apparatus according to various embodiments of the present invention will be described with reference to the drawings.

1 is a perspective view of a vehicle brake surface measuring apparatus 1000 according to an embodiment of the present invention, and FIG. 2 is a perspective view of the vehicle brake surface measuring apparatus 1000 in another direction.

1 and 2, the vehicle brake surface measuring device 1000 is provided on one side of the body portion 101 and the body portion 101 forming a skeleton for a vehicle brake disc 11 (FIG. 5) A mounting part 700 detachably connected to a wheel support 14 (see FIG. 5) rotatably mounted on the The handle portion 600 that is fixed to 14) or applies force to be released from the wheel support 14, and the measurement portion 400 that measures the surface of the brake portion 12 (refer to FIG. 5) of the brake disc 11 for a vehicle ) and the measuring part 400 are connected and rotatably provided on the side of the body part 101 to measure a position spaced apart from the edge of the braking part 12 inward by a predetermined distance by the measuring part 400 It may be provided with a position adjustment unit 305 to measure.

The vehicle brake surface measuring apparatus 1000 according to the present invention is detachably mounted to the wheel support 14 of the wheel assembly 10 (see FIG. 5 ). The wheel support 14 may be composed of a knuckle or a carrier. At this time, the wheel assembly 10 includes a disk 11 having a braking unit 12 and a hat part 13 (see FIG. 5 ), and a wheel support 14 rotatably mounted to the disk 11 . is composed of

The vehicle brake surface measuring device 1000 according to the present invention is provided to be movable when measuring the amount of change in the surface of the braking unit 12 of the brake disc 11 for a vehicle, so that the operator can easily move it. It is provided so that it can be mounted on the wheel support 14 with a constant fastening force regardless of the skill level of the operator. Furthermore, the vehicle brake surface measuring apparatus 1000 may accurately measure a position spaced apart from the edge of the brake unit 12 inward by a predetermined distance. Hereinafter, it will be described in detail with reference to the drawings.

The body portion 101 forms a skeleton of the vehicle brake surface measuring device 1000 . For example, the body part 101 may include a horizontal body part 100 and a vertical body part 500 connected in a vertical direction from the horizontal body part 100 .

The horizontal body part 100 has a lower connection part 110 connected to the lower part of the wheel support 14 of the disk 11 on one side, and a part of the handle part 600 can be rotatably connected to the other side. . A concave portion 112 is formed on the upper surface of the lower connection unit 110 , and the lower portion of the wheel support 14 may be inserted into the concave portion 112 to be fixed thereto.

In addition, a rotation connection part 120 is provided on the side of the horizontal body part 100 , and the above-described position adjusting part 305 is rotatably connected to the rotation connection part 120 . The position adjusting unit 305 will be described in detail later.

The body portion 101 may be made of a material having an appropriate strength, for example, may be made of a metal material, but is not limited thereto.

On the other hand, the aforementioned vertical body 500 may be vertically connected to the substantially central portion of the horizontal body 100 . Although not shown in the drawings, the vertical body part 500 may be integrally formed with the horizontal body part 100 . However, when the vertical body part 500 is integrally formed with the horizontal body part 100, it is not easy to manufacture, so it may be provided as a separate member. A part of the mounting part 700 may be rotatably connected to the upper end of the vertical body part 500 . The mounting part 700 will be described in detail later.

On the other hand, the handle portion 600 is provided on the other side of the body portion 101 to fix the mounting portion 700 to the wheel support 14 or to apply a force so as to be released from the wheel support 14 . will do

For example, the handle unit 600 includes a handle 610 that an operator can hold and push or pull by hand, and one end is rotatably connected to the handle 610 and the other end is a part of the mounting unit 700 . A first connecting bar 620 to be connected, and a second connecting bar 624 having one end rotatably connected to the handle 610 and the other end connected to the horizontal body part 100 may be provided.

The handle 610 is configured to move forward or backward in the horizontal direction, and when an operator holds and pushes the handle 610 , the above-described mounting part 700 is fixed to the wheel support 14 . In addition, when the operator grabs and pulls the handle 610 , the mounting part 700 is released from the wheel support 14 .

In this case, the first connecting bar 620 is rotatably connected to one end about a first pivoting shaft 612 disposed at a substantially central portion of the handle 610 . In addition, the other end of the first connection bar 620 is rotatably connected to a part of the mounting part 700 about the second rotation shaft 622 . Specifically, the other end of the first connecting bar 620 is rotatably connected to one end of the mounting pivot bar 630 of the mounting part 700 .

On the other hand, the second connecting bar 624 is rotatably connected to one end about the first rotation shaft 612 disposed in the approximately central portion of the handle (610). That is, both one end of the first connecting bar 620 and one end of the second connecting bar 624 may be rotatably connected to the handle 610 about the first rotating shaft 612 . Although not shown in the drawings, a configuration in which the first connection bar 620 and the second connection bar 624 are rotatably connected to the handle 610 using separate rotation shafts is also possible. In addition, the other end of the second connection bar 624 is rotatably connected to the other side of the horizontal body part 100 about a third rotation shaft 626 .

Meanwhile, the above-described mounting part 700 is provided on one side of the body part 101 and is detachably connected to the wheel support 14 rotatably mounted to the brake disc 11 for a vehicle. The vehicle brake surface measuring apparatus 1000 according to the present invention may be detachably connected to the wheel support 14 by using the mounting part 700 .

For example, the mounting portion 700 includes a mounting pivot bar 630 rotatably connected to the body 101 by movement of the handle 600 and an end of the mounting pivot bar 630 . A push bar 720 that is rotatably connected and moves in the vertical direction to be mounted on the wheel support 14 and a return spring 740 that applies an elastic force to the push bar 720 may be provided.

The mounting pivot bar 630 may be rotatably connected to the upper end of the aforementioned vertical body part 500 . In addition, one end of the mounting pivot bar 630 is rotatably connected to the other end of the first connecting bar 620 about the second pivot shaft 622 . Furthermore, the other end of the mounting pivot bar 630 is rotatably connected to the upper end of the push bar 720 about a fourth pivoting shaft 632 .

3 is a side view illustrating a state in which the handle 610 is advanced.

1 to 3 , when the handle 610 moves forward, the other ends of the first connecting bar 620 and the second connecting bar 624 are rotated in a direction in which they open. That is, the other end of the first connecting bar 620 is rotated upward. In addition, since the other end of the second connecting bar 624 is rotatably connected to the other side of the horizontal body portion 100, when the handle 610 moves forward, the second connecting bar 624 is It is rotated about the third rotation shaft 626 . Accordingly, the other end of the first connecting bar 620 moves in a direction further away from the other end of the second connecting bar 624 while rotating upward.

On the other hand, as described above, one end of the mounting pivot bar 630 is rotatably connected to the other end of the first connecting bar 620 , and the central part of the mounting pivot bar 630 is the vertical body part ( 500) is rotatably connected to the upper end. Accordingly, when the other end of the first connecting bar 620 is rotated upward, one end of the mounting rotation bar 630 is also rotated upward. In this case, the other end of the mounting rotation bar 630 is rotated downward.

Meanwhile, when the handle 610 moves forward, a stopper 714 for limiting the forward length of the handle 610 may be provided. The stopper 714 may be formed to protrude from the vertical body portion 500 toward the handle 610 .

Accordingly, when the handle 610 moves forward, at least a portion of the handle 610 interferes with the stopper 714 to prevent the handle 610 from further advancing.

Meanwhile, FIG. 4 is a side view illustrating the mounting part 700 . 4 (A) shows the mounting portion 700 in a state in which the aforementioned handle 610 is not advanced, and FIG. 4 (B) is the mounting portion 700 in a state in which the aforementioned handle 610 is advanced. shows

1, 2 and 4 , the body part 101 may further include a horizontal support part 710 extending in a horizontal direction from the vertical body part 500 . The horizontal support part 710 may be connected to the horizontal support part 710 by a bolt 712 .

In this case, the upper end of the push bar 720 is rotatably connected to the other end of the mounting pivot bar 630 about the fourth pivoting shaft 632, and the lower end of the push bar 720 is the It is connected through the horizontal support 710 .

Accordingly, when the handle 610 moves forward and the other end of the mounting pivot bar 630 rotates downward, the push bar 720 connected to the other end of the mounting pivot bar 630 moves downward. When pressed, the protrusion 726 connected to the lower end of the push bar 720 moves downward in the vertical direction and is inserted and fixed in the fastening hole 16 of the wheel support 14 (refer to FIG. 5 ).

On the other hand, when the handle 610 is retracted and the other end of the mounting rotation bar 630 is rotated upward, the above-described return spring 740 is the push bar 720 and the mounting rotation bar 630 . If it is not pressed by the other end of the , an elastic force is applied to return to the original state or to the original height.

However, the thickness of the wheel support 14 mounted on the disk 11 for a vehicle is not constant and may be different. Therefore, if only the return spring 740 is provided in the mounting part 700 , it becomes difficult to provide a constant fastening force when the thickness of the wheel support 14 varies.

Therefore, the vehicle brake surface measuring apparatus 1000 according to the present invention provides a mounting force maintaining spring that provides a predetermined fixed amount of fastening force or mounting force even when the thickness of the wheel support 14 is changed in the mounting part 700 . (742) may be further provided.

For example, the mounting part 700 includes a mounting force adjusting nut 730 that is fastened to the push bar 720 and movable up and down, and the push bar 720 passes through the upper part of the push bar 720 . A holding plate 750 to be disposed may be further provided.

A curved cam portion 631 may be formed at the other end of the mounting pivot bar 630 . When the mounting rotation bar 630 rotates, the cam part 631 presses the holding plate 750 downward, so that the push bar 720 can move downward.

On the other hand, an opening 721 through which the fourth rotation shaft 632 passes is formed at the upper end of the push bar 720 , and the first push bar 724 and the second push bar 722 sequentially downward toward the bottom. can be connected Although the first push bar 724 and the second push bar 722 have different diameters or thicknesses, they may be formed of members having the same diameter or thickness.

In addition, the return spring 740 is disposed between the mounting force adjusting nut 730 and the horizontal support part 710 , and the mounting force maintaining spring 742 is the mounting force adjusting nut 730 and the retaining plate. 750 may be disposed.

In the above configuration, the return spring 740 serves to apply an elastic force to return to its original state or original height when the push bar 720 is not pressed by the other end of the mounting pivot bar 630 . In addition, the mounting force maintaining spring 742 is configured so that the protrusion 726 of the push bar 720 presses the wheel support 14 with a constant mounting or fastening force even when the thickness of the wheel support 14 is changed. It acts as an elastic force.

For example, in the case in which the handle 610 is not advanced, the fourth rotation shaft 632 maintains a state in contact with the upper end of the opening 721 as shown in FIG. By the elastic force of the spring 740 , the push bar 720 passes through the horizontal support part 710 and moves upward. At this time, the protrusion 726 interferes with the lower portion of the horizontal support portion 710 so that the push bar 720 does not move upward any longer.

Then, when the handle 610 moves forward, the other end of the mounting rotation bar 630 is rotated downward. At this time, the cam portion 631 provided at the other end of the mounting rotation bar 630 presses the holding plate 750 downward.

In this case, as the mounting force maintaining spring 742 is compressed, the mounting force adjusting nut 730 is pressed downward, so that the push bar 720 passes through the horizontal support part 710 to a predetermined length (D) The protrusion 726 is fastened to the fastening hole 16 of the wheel support 14 described above.

On the other hand, when the thickness of the wheel support 14 is different, the protrusion 726 is formed by moving the mounting force adjusting nut 730 up and down to change the elastic force of the mounting force maintaining spring 742. 14), it is possible to maintain a constant fastening force or mounting force.

For example, when the thickness of the wheel support 14 is smaller than a predetermined thickness, the mounting force adjusting nut 730 may be moved upward along the push bar 720 . In this case, since the mounting force maintaining spring 742 is in a pre-pressed state, a relatively larger elastic force is applied, so that even when the thickness of the wheel support 14 is thin, it can be fastened with the same fastening force.

On the other hand, when the thickness of the wheel support 14 is thicker than a predetermined thickness, the mounting force adjusting nut 730 may be moved downward along the push bar 720 . In this case, the mounting force maintaining spring 742 is in a pre-tensioned state, and a relatively smaller elastic force is applied, so that even when the thickness of the wheel support 14 is thick, it can be fastened with the same fastening force.

On the other hand, referring to FIGS. 1 and 2 , the position adjustment unit 305 includes a position adjustment rotation bar 200 rotatably connected to the side of the body portion 101 , and the position adjustment rotation bar 200 . It is rotatably connected to the end of the position controller 300 may be provided.

For example, one end of the position adjustment pivot bar 200 is rotatably connected to the pivot connection part 120 of the horizontal body part 100 . In this case, the fastening bolt 240 may pass through one end of the position adjustment rotation bar 200 to be connected to the rotation connection part 120 .

On the other hand, a rotation handle 230 may be provided at an approximately central portion of the position adjustment rotation bar 200 . That is, after the operator loosens the fastening bolt 240 , the position adjustment rotation bar 200 can be rotated using the rotation handle 230 .

A measuring unit 400 for measuring the amount of change in the surface unevenness of the braking unit 12 may be provided at the other end of the position adjusting rotation bar 200 .

For example, the measuring bar 410 of the measuring unit 400 may penetrate the through hole (not shown) of the other end of the position adjusting rotation bar 200 to contact the surface of the braking unit 12 . have.

In this case, the above-described position adjuster 300 may be rotatably connected to the other end of the position adjustment pivot bar 200 .

When the position adjuster 300 rotates the position adjustment rotation bar 200, the measurement bar 410 of the measurement unit 400 is spaced apart from the edge of the braking unit 12 inward by a predetermined distance. It plays a role in adjusting the position.

Specifically, the position adjuster 300 includes a horizontal extension portion 310 , a vertical extension portion 320 extending downward from an end of the horizontal extension portion 310 , and a lower end of the vertical extension portion 320 . A contact portion 330 formed by being bent inward may be provided.

The horizontal extension portion 310 may be formed with a position adjustment through hole 312 (see FIG. 9 ) in the form of a long hole through which the above-described measurement bar 410 passes.

Accordingly, the measuring bar 410 of the above-described measuring unit 400 passes through the other end of the position adjusting rotation bar 200 and the position adjusting through hole 312 of the position adjusting unit 300 to pass through the braking unit 12 . ) in contact with the surface.

When the position adjuster 300 is connected to the other end of the position adjustment rotation bar 200, the other end of the position adjustment rotation bar 200 is inserted between the horizontal extension portion 310 and the contact portion 330 and disposed can be

On the other hand, a cutout 210 may be formed at the other end of the position adjustment rotation bar 200 . When the measuring bar 410 of the measuring part 400 is disposed through the other end of the position adjusting rotation bar 200, the measuring bar (210) is tightened by the adjusting bolt 212. 410) may be firmly fixed. When the measuring part 400 is to be separated from the position adjusting rotation bar 200 , the measuring part 400 may be separated by loosening the adjusting bolt 212 .

When the vehicle brake surface measuring device 1000 is mounted on the wheel support 14, the position adjustment rotation bar 200 is rotated so that the contact surface 332 of the contact portion 330 of the position adjuster 300 is the first When in contact with the edge of the eastern part 12 , the measuring bar 410 of the measuring part 400 is positioned at a position spaced apart from the edge of the braking part 12 inward by a predetermined distance. Hereinafter, it will be described in more detail with reference to the drawings.

FIG. 5 is a perspective view illustrating the vehicle brake surface measuring apparatus 1000 before being mounted on the wheel support 14 mounted on the brake disc 11, and FIG. 6 is the vehicle brake surface measuring apparatus 1000 It is a perspective view showing a state mounted on the wheel support 14 mounted on the brake disc 11 .

5 and 6 , first, the lower connection part 110 of the horizontal body part 100 is brought into close contact with the lower part of the fastening hole 16 of the wheel support body 14 mounted on the disk 11 .

When the handle 610 is moved forward as shown in FIG. 6 in the above state, the mounting rotation bar 630 rotates. When the mounting rotation bar 630 rotates and the cam portion 631 of the mounting rotation bar 630 presses the holding plate 750 of the push bar 720, the The push bar 720 is moved downward by the elastic force. At this time, the protrusion 726 provided at the lower end of the push bar 720 is inserted into the upper portion of the fastening hole 16 of the wheel support 14 , and the mounting part 700 is mounted on the wheel support 14 . do.

On the other hand, as shown in FIG. 6 , when the vehicle brake surface measuring device 1000 is mounted on the wheel support 14 , the measuring bar 410 of the measuring unit 400 is measured by using the position adjusting unit 305 . position will be adjusted.

7 is a perspective view of a state in which the position adjuster 300 of the position adjuster 305 is in contact with the edge of the brake unit 12 , and FIG. 8 is a plan view of FIG. 7 . In FIG. 8 , it should be noted that only the position adjustment rotation bar 200 , the measurement bar 410 , and the position adjuster 300 are illustrated for convenience of explanation.

7 and 8 , after the vehicle brake surface measuring device 1000 is mounted on the wheel support 14 , the position adjustment rotation bar 200 is rotated. At this time, after the operator loosens the fastening bolt 240 , the position adjustment rotation bar 200 may be rotated using the rotation handle 230 . On the other hand, the position adjuster 300 connected to the other end of the position adjustment rotation bar 200 corresponds to a state arranged to determine the measuring position of the measuring bar (410).

9 is a plan view illustrating the position adjustment through hole 312 .

7 to 9 , the position adjuster 300 is positioned so that the measuring bar 410 is positioned in the first area 312A of the position adjustment through hole 312 of the position adjustment rotation bar 200 . connected to the other end.

The measuring bar 410 is located in the first area 312A of the position adjustment through hole 312 , and the position adjustment rotation bar 200 rotates so that the contact surface 332 of the contact unit 330 is the braking unit When in contact with the edge of (12), the measuring bar 410 is positioned at a position spaced apart from the edge of the braking unit 12 inward by a predetermined distance (T).

However, when the wheel support 14 is rotated in the above-described state, the contact surface 332 of the contact part 330 interferes with the edge side of the braking part 12 to cause damage to the braking part 12 or , it may be difficult to accurately measure by the measuring unit 400 .

10 is a perspective view of a state in which the position adjuster 300 of the position adjuster 305 is spaced apart from the edge of the braking unit 12 , and FIG. 11 is a plan view of FIG. 10 . In FIG. 11 , it should be noted that only the position adjustment rotation bar 200 , the measurement bar 410 , and the position adjuster 300 are illustrated for convenience of explanation.

9 to 11 , in the state of FIGS. 7 and 8 , the position adjuster 300 is moved so that the measuring bar 410 is located in the second region 312B of the position adjustment through hole 312 . Then, the position controller 300 is rotated in a direction away from the braking unit 12 .

In this case, even when the contact part 330 is spaced apart from the edge of the braking part 12 and measured by rotating the wheel support 14 as shown in the drawings, the contact part 330 and the braking part 12 ) to prevent side interference.

The present invention may be modified and implemented in various forms, and the scope of the rights is not limited to the above-described embodiments. Therefore, if the modified embodiment includes the elements of the claims of the present invention, it should be regarded as belonging to the scope of the present invention.

100: horizontal body part
101: body part
200: position adjustment rotation bar
300: position controller
400: measurement unit
500: vertical body
600: handle part
700: mounting part
1000: automobile brake surface measuring device

Claims (9)

In the automobile brake surface measuring device for measuring the amount of unevenness change on the surface of the braking part of a brake disc for a vehicle,
body part;
a mounting part provided on one side of the body part and detachably connected to a wheel support rotatably mounted on a brake disc for a vehicle;
a handle part provided on the other side of the body part to fix the mounting part to the wheel support body or to apply a force to be released from the wheel support body;
a measuring unit for measuring the surface of the braking unit; and
a position adjusting unit connected to the measuring unit and rotatably provided on the side of the body so that the measuring unit measures a position spaced inward by a predetermined distance from the edge of the braking unit; Brake surface measuring device. According to claim 1,
the mounting part
A mounting pivot bar rotatably connected to the body by the movement of the handle, a push bar rotatably connected to an end of the mounting pivot bar and mounted on the wheel support by moving in the vertical direction, and an elastic force on the push bar Vehicle brake surface measuring device, characterized in that provided with a return spring to apply. 3. The method of claim 2,
The body portion includes a horizontal body portion, a vertical body portion extending in a vertical direction from the horizontal body portion, and a horizontal support portion extending in a horizontal direction from the vertical body portion,
The mounting rotation bar is rotatably connected to the upper end of the vertical body part, and the push bar is connected through the horizontal support part. 4. The method of claim 3,
The handle part
A handle, a first connecting bar having one end rotatably connected to the handle and the other end connected to the mounting rotation bar, and a second connecting bar having one end rotatably connected to the handle and the other end connected to the horizontal body portion Vehicle brake surface measuring device, characterized in that. 4. The method of claim 3,
the mounting part
The apparatus for measuring the surface of an automobile brake according to claim 1, further comprising a mounting force maintaining spring that provides a predetermined fixed size of mounting force even when the thickness of the wheel support is changed. 6. The method of claim 5,
The mounting portion further includes a mounting force adjusting nut fastened to the push bar and movable up and down, and a holding plate disposed on the push bar so that the push bar passes through,
The return spring is disposed between the mounting force adjusting nut and the horizontal support part, and the mounting force maintaining spring is disposed between the mounting force adjusting nut and the holding plate. According to claim 1,
The positioning unit
A position adjustment pivot bar rotatably connected to the side of the body portion, and a position adjuster rotatably connected to an end of the position adjustment pivot bar,
The measuring bar of the measuring unit passes through the end of the position adjusting rotation bar and the position adjuster to contact the surface of the brake unit. 8. The method of claim 7,
The position adjuster further includes a position adjustment through-hole in the form of a long hole through which the measuring bar passes, and a contact portion in contact with the edge of the braking unit,
When the measurement bar is located in the first region of the position adjustment through hole, and the position adjustment rotation bar rotates and the contact portion contacts the edge of the braking unit, the measurement bar is spaced apart from the edge of the braking unit by a predetermined distance inward. Vehicle brake surface measuring device, characterized in that located in the position. 9. The method of claim 8,
The measuring bar is located in the second region of the position adjustment through hole, and when the position adjuster is rotated, the contact portion is spaced apart from the edge of the braking unit.

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