KR102718511B1 - Pad liner for braking apparatus - Google Patents

Abstract

An invention is disclosed for a pad liner for a brake device. The disclosed pad liner for a brake device is characterized by including: a main body part that comes into contact with a torque member; an insertion part that is connected to the main body part and into which a part of the torque member is inserted; a first guide part that extends to one side from the insertion part, comes into contact with a brake pad, and guides movement of the brake pad; a support part that extends from the first guide part to be bent in the same direction as the insertion part and supports the brake pad; a return part that is formed to be extended from the main body part to be inclined toward the insertion part, is elastically deformed when rotated, and returns the brake pad to its original position by elastic force; and a plastic deformation prevention part that protrudes from the insertion part toward the return part, is located on a rotational path of the return part, and prevents plastic deformation of the return part.

Description

PAD LINER FOR BRAKING APPARATUS

The present invention relates to a pad liner for a brake device, and more specifically, to a pad liner for a brake device which prevents plastic deformation.

In general, the caliper of a brake device for braking is made up of multiple parts that come into contact with the brake disc when the pedal is pressed to provide braking power.

Among brake calipers, pad liners are provided with a return section that returns the brake pad to its original position by elastic force. However, the return section of the pad liner has a problem of plastic deformation during transportation or assembly. Therefore, there is a need to improve this.

The background technology of the present invention is published in Korean Patent Publication No. 10-1628600 (registered on June 1, 2016, title of the invention: Pad liner for brake caliper with reduced drag).

The present invention was created in response to the above-mentioned need, and its purpose is to provide a pad liner for a brake device that prevents plastic deformation.

In order to achieve the above object, the pad liner for a brake device of the present invention is characterized by including: a main body part that comes into contact with a torque member; an insertion part connected to the main body part and into which a part of the torque member is inserted; a first guide part that extends to one side from the insertion part, comes into contact with a brake pad, and guides movement of the brake pad; a support part that extends from the first guide part to be bent in the same direction as the insertion part and supports the brake pad; a return part that is formed to be extended from the main body part to be inclined in the direction of the insertion part, is elastically deformed while rotating, and returns the brake pad to its original position by elastic force; and a plastic deformation prevention part that protrudes from the insertion part toward the return part, is located on a rotational path of the return part, comes into contact with the return part, and prevents plastic deformation of the return part.

In addition, the main body part is characterized by including a main body plate that comes into contact with the torque member; and a main body extension part that is spaced apart from the main body plate and extends to one side and is connected to the insertion part.

In addition, the return portion is characterized in that it is spaced apart from each other in the main body plate and extends in the direction of the insertion portion.

In addition, the return portion is characterized by including a return plate portion that is formed to extend forward of the main body plate and is spaced apart from the main body plate by a predetermined distance; and a return inclined portion that extends inclinedly from the return plate portion in the direction of the insertion portion.

In addition, the insertion part is characterized by including a first insertion plate part that extends from an end of the main body extension part to be bent forward of the main body extension part; a second insertion plate part that extends from an end of the first insertion plate part to be bent in the direction of the first guide part and has the plastic deformation prevention part protruding toward the return part on the opposite side of the facing side; and a third insertion plate part that extends from an end of the second insertion plate part to be bent rearward of the second insertion plate part, faces the first insertion plate part, and is connected to the first guide part.

In addition, the first guide portion is characterized by including a first guide plate portion extending to one side from the third insertion plate portion and connected to the support portion; and a first guide stopper portion formed on the first guide plate portion and protruding forward of the first guide plate portion to limit detachment of the brake pad.

In addition, the support member is characterized by including a support member that extends from an end of the first guide plate member to be bent forward of the first guide plate member; and a compression member that is formed on the support member and is in close contact with the torque member.

In addition, the support member is characterized by including a first insertion guide member that extends downwardly from an opposite side of the facing side of the first guide plate member to the first guide plate member.

In addition, it is characterized by further including a second guide portion extending to one side from the support portion, contacting the brake pad, and guiding movement of the brake pad.

In addition, the second guide portion is characterized by including a second guide plate portion that extends downward from an end of the support plate portion; and a second guide extension portion that extends from an end of the second guide plate portion to be bent forward of the second guide plate portion.

In addition, the second guide portion is characterized by further including a second insertion guide portion formed to be inclined toward the rear of the second guide plate portion on the opposite side of the facing side of the second guide plate portion.

The pad liner for a brake device according to the present invention is positioned on the rotational path of the return portion, and has a plastic deformation prevention portion that contacts the return portion and prevents plastic deformation of the return portion, thereby increasing the return force by causing the return portion to be plastically deformed, thereby preventing the force applied to the brake pedal from increasing and the performance from being deteriorated when the brake pedal is operated.

In addition, since the return portions of the present invention are spaced apart from each other on the main body plate of the main body and extend in the direction of the insertion portion as a pair, the space formed between the return portions can be positioned on the same line as the brake disc, thereby having the effect of minimizing thermal deformation of the return portion due to the brake disc, the temperature of which rises to 700 degrees or higher.

In addition, the present invention has the effect of reducing deformation of a pad liner for a brake device, as well as reducing drag phenomenon and noise, by providing a compression member that is in close contact with a torque member on a support member.

FIG. 1 is a perspective view schematically illustrating a brake device according to one embodiment of the present invention.
Figure 2 is an exploded perspective view of a brake device according to one embodiment of the present invention.
FIG. 3 is a perspective view showing a pad liner for a brake device according to one embodiment of the present invention.
FIG. 4 is a front view of a pad liner for a brake device according to one embodiment of the present invention.
FIG. 5 is a side view of a pad liner for a brake device according to one embodiment of the present invention.
FIG. 6 is a plan view of a pad liner for a brake device according to one embodiment of the present invention.
FIGS. 7 and 8 are drawings showing that the return portion of a pad liner for a brake device according to one embodiment of the present invention is in contact with a plastic deformation prevention portion to prevent plastic deformation.
Figure 9 is a cross-sectional side view of a brake device according to one embodiment of the present invention.
Figure 10 is an enlarged view of the AA' portion of Figure 9.

Hereinafter, a pad liner for a brake device according to one embodiment of the present invention will be described with reference to the attached drawings.

In this process, the thickness of the lines depicted in the drawing and the size of the components may be exaggerated for the sake of clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of their functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view schematically illustrating a brake device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a brake device according to an embodiment of the present invention, FIG. 3 is a perspective view illustrating a pad liner for a brake device according to an embodiment of the present invention, FIG. 4 is a front view of a pad liner for a brake device according to an embodiment of the present invention, FIG. 5 is a side view of a pad liner for a brake device according to an embodiment of the present invention, FIG. 6 is a plan view of a pad liner for a brake device according to an embodiment of the present invention, FIGS. 7 and 8 are drawings illustrating a return portion of a pad liner for a brake device according to an embodiment of the present invention in which plastic deformation is prevented by contacting a plastic deformation preventing portion, FIG. 9 is a side cross-sectional view of a brake device according to an embodiment of the present invention, and FIG. 10 is an enlarged view of a portion A-A' of FIG. 9.

Referring to FIGS. 1 to 5, a pad liner (100) for a brake device according to one embodiment of the present invention includes a main body portion (110), an insertion portion (120), a first guide portion (130), a support portion (140), a return portion (150), and a plastic deformation prevention portion (160). This pad liner (100) for a brake device includes a metal material and can be integrally molded.

The main body (110) is in contact with the torque member (10). The main body (110) includes a main body plate (111) and a main body extension (112). The main body plate (111) is in contact with the torque member (10), and the main body extension (112) is a pair spaced apart from the main body plate (111) and extends to one side and is connected to the insertion part (120). The main body extension (112) is a pair spaced apart from the main body (110) and extends downward (based on FIGS. 2 and 3) and is in contact with the torque member (10).

The insertion part (120) is connected to the main body part (110), and the torque member protrusion (11) of the torque member (10) is inserted. Specifically, the insertion part (120) has a 'ㄷ' shape and the torque member protrusion (11) of the torque member (10) is inserted (see FIG. 3). That is, the torque member protrusion (11) of the torque member (10) is fitted into the insertion part (120). In this way, by fitting the torque member protrusion (11) of the torque member (10), the main body part (110) can be closely attached to the torque member (10).

The first guide portion (130) extends from the insertion portion (120) to one side, comes into contact with the brake pad (20), and guides the movement of the brake pad (20). Specifically, the brake pad (20) includes a pad support portion (21) and a pad friction portion (22). The pad support portion (21) has a pad support portion body (21a) and a pad protrusion portion (21b). The pad support portion body (21a) is coupled with the cylinder (40) and can move. The pad protrusion portion (21b) extends from both ends of the pad support portion body (21a) and is inserted into the first guide portion (130). The pad friction portion (22) is attached to the pad support portion (21) and comes into contact with the brake disc (30) to provide friction.

The support member (140) extends from the first guide member (130) in a direction similar to that of the insertion member (120) and supports the brake pad (20). The support member (140) extends from the lower end of the first guide member (130) in a direction similar to that of the insertion member (120) and supports the brake pad (20) when the brake pad (20) moves (see FIG. 5).

The return portion (150) extends from the opposite sides of the insert portion (120) toward the insert portion (120), is elastically deformed while rotating, and returns the brake pad (20) to its original position with elastic force.

The return portion (150) provides elasticity to the brake pad (20). The return portions (150) are spaced apart from each other on the main body plate (111) of the main body (110) and extend toward the insertion portion (120) as a pair. Specifically, the return portions (150) are spaced apart from each other on the main body plate (111) and extend downward (based on FIGS. 3 and 4). As the return portions (150) are spaced apart by a predetermined distance, a space (180) is formed between the return portions (150). At this time, the space (180) is positioned on the same line as the brake disc (30) (see FIG. 6). As a result, it is possible to minimize thermal deformation of the return portion (150) by the brake disc (30) whose temperature rises to 700 degrees or higher. Furthermore, the natural frequency of the pad liner (100) for the brake device can be spaced apart and used as a noise tuning factor.

The return member (150) is made of an elastic material and is placed between the brake pads (20). When the external force applied to the brake pads (20) by the cylinder (40) is removed, the elastic force causes the brake pads (20) to separate from the brake disc (30).

The plastic deformation prevention part (160) protrudes from the insertion part (120) toward the return part (150), is located on the rotational path of the return part (150), and comes into contact with the return part (150) to prevent plastic deformation of the return part (150). The plastic deformation prevention part (160) protrudes from the insertion part (120) toward the front of the insertion part (120) to prevent the return part (150) from being elastically deformed beyond a set value.

Specifically, when the return portion (150) is elastically deformed during transport or assembly of the pad liner (100) for a brake device, or when the return portion (150) is elastically deformed by the pressure of the brake pad (20) by the driver operating the brake pedal (not shown in the drawing), the return portion (150) is prevented from being deformed plastically by going out of the elastic region of the return portion (150). As a result, since the return portion (150) is plastically deformed and the return force is increased, the force applied to the brake pedal when operating the brake pedal is increased, and thus the performance is prevented from being degraded.

The return portion (150) includes a return plate portion (151) and a return slope portion (152). The return plate portion (151) is formed to extend forward of the main body plate (111) at a predetermined distance from the main body plate (111). The return slope portion (152) extends from the return plate portion (151) in a slanted manner toward the insertion portion (120). As shown in Fig. 3, the return slope portion (152) is formed to be slanted toward the insertion portion (120) at a predetermined angle from the end of the return plate portion (151).

The return portion (150) further includes a return notification portion (153). The return notification portion (153) is formed to be bent toward the support portion (140) from the end of the return slope portion (152). That is, the return notification portion (153) is formed to be bent downward (based on FIGS. 3 and 4) from the end of the return slope portion (152). When the pad friction portion (22) is worn, the return notification portion (153) contacts the brake disc (30) and generates noise, thereby notifying the driver of the time to replace the brake pad (20). As a result, the driver can recognize the time to replace the brake pad (20). In addition, the return notification portion (153) has a shape bent toward the support portion (140), thereby reducing resistance when the return slope portion (152) is restored to its original position by elastic force.

The insertion portion (120) includes a first insertion plate portion (121), a second insertion plate portion (122), and a third insertion plate portion (123). The first insertion plate portion (121) extends from the end of the main body extension portion (112) to be bent forward of the main body extension portion (112).

The second insertion plate part (122) extends from the first insertion plate part (121) in a curved manner toward the first guide part (130), and a plastic deformation prevention part (160) protrudes toward the return part (150) on the opposite side of the sides facing each other. As a result, elastic deformation of the return part (150) beyond the set value can be restricted.

The third insertion plate part (123) extends from the end of the second insertion plate part (122) to the rear of the second insertion plate part (122) so as to face the first insertion plate part (121) and is connected to the first guide part (130). A torque member protrusion (11) protruding from the torque member (10) is inserted into the space formed by the first insertion plate part (121), the second insertion plate part (122), and the third insertion plate part (123).

The insertion portion (120) further includes a movement-limiting plate portion (124). The movement-limiting plate portion (124) contacts the torque member protrusion (11) to limit the horizontal movement of the torque member protrusion (11). As a result, the horizontal movement of the torque member (10) can be limited.

The first guide part (130) includes a first guide plate part (131) and a first guide stopper part (132). The first guide plate part (131) extends from the third insertion plate part (123) to one side and is connected to the support part (140). The first guide plate part (131) extends downward (based on FIG. 3) from the end of the third insertion plate part (123) and comes into contact with the torque member home part (12) of the torque member (10).

The first guide stopper portion (132) is formed on the first guide plate portion (131) and protrudes forward of the first guide plate portion (131) to limit the detachment of the brake pad (20). The first guide stopper portion (132) can protrude forward of the first guide plate portion (131) by forming holes on both sides of the first guide plate portion (131). As a result, the pad protrusion portion (21b) positioned close to the first guide plate portion (131) is caught on the first guide stopper portion (132) to limit its movement, and is also prevented from being detached to the outside of the first guide plate portion (131).

The support member (140) includes a support plate member (141), a pressure member (142), and a first insertion guide member (143). The support plate member (141) is formed to extend from an end of the first guide plate member (131) to be bent forward of the first guide plate member (131). The support plate member (141) extends downward (based on FIGS. 2 and 3) from an end of the first guide plate member (131) to support the torque member (10).

The pressure part (142) is formed on the support plate part (141) and is in close contact with the torque member (10). The pressure part (142) includes a pressure hole part (142a), a pressure close part (142b), and a pressure slope part (142c). The pressure hole part (142a) is formed on the support plate part (141). The pressure close part (142b) extends from the support plate part (141) and is located in the pressure hole part (142a).

The pressure slope (142c) extends from the lower end of the pressure contact portion (142b) toward the second guide portion (170) (based on FIGS. 3 and 5). The pressure slope (142c) is made of an elastic material and can compress the torque member (10) by elastic force. Specifically, it is elastically deformed when it comes into contact with the torque member body (13) of the torque member (10), but is restored to its original state by elastic force and is in close contact with the torque member body (13) to compress it.

The compression member (142) may be positioned at the central portion (O) of the pad liner (100) for a brake device (see FIGS. 9 and 10). In contrast to the conventional technology in which the compression member (142) is positioned at the insertion portion (120), the rotational support point (A) of the return member (150) is positioned at the lower side. Accordingly, when the return member (150) is elastically deformed while rotating when assembling the pad liner (100) for a brake device, or when the return member (150) is elastically deformed while rotating by the pressure of the brake pad (20) by the driver operating the brake pedal (not shown in the drawing), the deformation of the pad liner (100) for a brake device can be reduced, and the drag phenomenon and noise can be reduced.

The first insertion guide portion (143) is formed to extend downwardly from the opposite side of the first guide plate portion (131) so as to be inclined. Accordingly, when assembling the brake pad (20) to the first guide portion (130) and the second guide portion (170), the brake pad (20) can be easily guided toward the first guide portion (130) and the second guide portion (170) and assembled. In addition, when the torque member protrusion (11) is inserted into the insertion portion (120), the horizontal movement of the torque member protrusion (11) can be restricted.

The second guide part (170) includes a second guide plate part (171), a second guide extension part (172), and a second insertion guide part (173). The second guide plate part (171) is formed to extend downward from an end of the support plate part (141) of the support plate part (141). The second guide plate part (171) extends downward (based on FIGS. 2 and 3) from the end of the support plate part (141) and comes into contact with the torque member body (13) of the torque member (10).

The second guide extension (172) is formed to extend from the end of the second guide plate (171) to the front of the second guide plate (171). The second guide extension (172) can guide the movement of the torque member (10) by contacting the torque member body (13) of the torque member (10) and support the lower portion of the torque member (10).

The second insertion guide portion (173) is formed so as to be inclined toward the rear of the second guide plate portion (171) on the opposite side of the facing side of the second guide plate portion (171). Accordingly, when assembling the brake pad (20) to the first guide portion (130) and the second guide portion (170), the brake pad (20) can be easily guided toward the first guide portion (130) and the second guide portion (170) and assembled. In addition, when the torque member protrusion (11) is inserted into the insertion portion (120), the horizontal movement of the torque member protrusion (11) can be restricted.

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Therefore, the true technical protection scope of the present invention should be defined by the following patent claims.

1: Brake device 10: Torque member
11: Talk member turning 12: Talk member home page
13: Torque member body 20: Brake pad
21: Pad support part 21a: Pad support part body
21b: Pad protrusion 22: Pad friction part
30 : Brake disc 40 : Piston
100: Pad liner for brake device 110: Body
111: Main body 112: Main body extension
120: Insert part 121: First insert plate part
122: 2nd insert plate 123: 3rd insert plate
124: Movement restriction board 130: 1st guide board
131: 1st guide plate part 132: 1st guide stopper part
140: Support part 141: Support board part
142: Compression part 142a: Compression hole part
142b: Compression fitting part 142c: Compression slope part
143: 1st movement restriction section 150: Return section
151: Return plate 152: Return slope
153: Return notification section 160: Plastic deformation prevention section
170: 2nd guide section 171: 2nd guide board section
172: Second guide extension part 173: Second insertion guide part
180 : Separation space

Claims (11)

The main body part that comes into contact with the talk member;
An insertion part connected to the above main body part and into which a part of the torque member is inserted;
A first guide portion extending to one side from the above insertion portion, contacting the brake pad, and guiding the movement of the brake pad;
A support portion extending from the first guide portion to be bent in the same direction as the insert portion and supporting the brake pad;
A return part that is formed to extend in a direction inclined from the main body part toward the insertion part, is elastically deformed while rotating, and returns the brake pad to its original position with elastic force; and
It includes a plastic deformation prevention part that protrudes from the insertion part toward the return part, is positioned on the rotational path of the return part, and comes into contact with the return part to prevent plastic deformation of the return part;
The above main body part,
A main body plate in contact with the above torque member; and
Including a pair of main body extension parts spaced apart from the main body plate and extending to one side and connected to the insertion part;
The above return portions are spaced apart from each other in the main body plate and extend toward the insertion portion as a pair,
It further includes a separation space formed between the above return parts and positioned on the main body plate,
The above gap is located on the same line as the brake disc. A pad liner for a brake device characterized by:
delete delete In paragraph 1,
The above return part,
A return plate portion formed to extend forward of the main body plate and spaced apart from the main body plate by a predetermined distance; and
A pad liner for a brake device, characterized in that it includes a return slope portion extending obliquely in the direction of the insertion portion from the return plate portion.
In paragraph 1,
The above insertion part,
A first insertion plate portion extending from an end of the main body extension portion to be bent forward of the main body extension portion;
A second insertion plate portion extending from an end of the first insertion plate portion in a direction of the first guide portion and having the plastic deformation prevention portion protruding toward the return portion on the opposite side of the facing sides; and
A pad liner for a brake device, characterized in that it includes a third insertion plate portion that extends from an end of the second insertion plate portion to be bent toward the rear of the second insertion plate portion, faces the first insertion plate portion, and is connected to the first guide portion.
In paragraph 5,
The above first guide section,
A first guide plate portion extending to one side from the third insertion plate portion and connected to the support portion; and
A pad liner for a brake device, characterized by including a first guide stopper portion formed on the first guide plate portion and protruding forward of the first guide plate portion to limit detachment of the brake pad.
In paragraph 6,
The above support part,
A support plate portion formed to extend and bend forward from an end of the first guide plate portion; and
A pad liner for a brake device, characterized by including a compression member formed on the support plate and in close contact with the torque member.
In Article 7,
The above support part,
A pad liner for a brake device, characterized in that it includes a first insertion guide portion that extends downwardly from an opposite side of the facing side of the first guide plate portion;
In Article 8,
A pad liner for a brake device, characterized in that it further includes a second guide portion extending to one side from the support portion, contacting the brake pad, and guiding movement of the brake pad.
In Article 9,
The above second guide section,
A second guide plate portion formed to extend downward from an end of the support plate portion; and
A pad liner for a brake device, characterized in that it includes a second guide extension portion that extends and bends forward from an end portion of the second guide plate portion.
In Article 10,
The above second guide section,
A pad liner for a brake device, characterized in that it further includes a second insertion guide portion formed to be inclined toward the rear of the second guide plate portion on the opposite side of the facing side of the second guide plate portion.

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