WO2021215436A1

WO2021215436A1 - Floating caliper

Info

Publication number: WO2021215436A1
Application number: PCT/JP2021/016032
Authority: WO
Inventors: ▲祥▼平荒金; 村山　泰
Original assignee: 株式会社アドヴィックス
Priority date: 2020-04-23
Filing date: 2021-04-20
Publication date: 2021-10-28

Abstract

The present invention is a floating caliper provided with a caliper body 3, a first pad 61 arranged between a claw part 32 and a disc rotor R, a first pad support 7 for supporting the first pad 61 so as to be slidable in the axial direction of the disc rotor R, a mount 2 in which the first pad support 7 and a second pad support 8 are assembled, and a decorative plate 9 arranged facing an outer surface of the claw part 32. When the axial direction of the disc rotor R is defined as the rotor axial direction, the decorative plates 9 and 9A are attached to the first pad supports 7 and 7A such that movement of the decorative plates 9 and 9A is restricted at least in the rotor axial direction relative to the first pad supports 7 and 7A.

Description

Floating caliper

The present invention relates to a floating caliper.

The floating caliper has a caliper body having a cylinder portion for accommodating the piston and a claw portion arranged to face the cylinder portion. The claws are arranged on the outer surface side of the vehicle and are visibly arranged from the outside of the vehicle. Therefore, conventionally, for the purpose of improving the design of the caliper and protecting the parts, a design plate covering the outer surface of the claw portion has been installed on the caliper body. For example, in the disc brake device described in Japanese Patent No. 5148545, the design plate is screwed to the caliper body.

Japanese Patent No. 5148545

However, in the configuration where the design plate is fixed to the caliper body by screwing, it is necessary to form screw holes and manage torque in screwing. Processing and design changes of mounts and caliper bodies are large-scale tasks. In addition, separate equipment is required for torque management. In order to prevent the screws from being damaged or loosened, it is necessary to tighten the screws with an appropriate torque in the work of attaching and detaching the design plate. As described above, there is room for improvement in the conventional configuration in terms of the productivity of the floating caliper having the design plate and the workability of assembling the design plate.

An object of the present invention is to provide a floating caliper capable of improving the productivity of a floating caliper having a design plate and the workability of assembling the design plate.

The floating caliper of the present invention has a cylinder portion that slidably accommodates a piston, a claw portion that is arranged to face the cylinder portion via a disc rotor, and the cylinder portion and the claw portion that straddle the disc rotor. A caliper body having a bridge portion for connecting the above, a first pad arranged between the claw portion and the disc rotor, a second pad arranged between the piston and the disc rotor, and the first pad. A first pad support that slidably supports one pad in the axial direction of the disc rotor, a second pad support that slidably supports the second pad in the axial direction of the disc rotor, and the first pad. A floating caliper including a mount to which a support and the second pad support are assembled and a design plate arranged to face the outer surface of the claw portion, and the axial direction of the disc rotor is the rotor axial direction. The design plate is attached to the first pad support so that movement of the design plate with respect to the first pad support at least in the rotor axial direction is restricted.

According to the present invention, the design plate can be held by the caliper body by processing the design plate and the first pad support without processing the mount and the caliper body. By using the first pad support attached to the mount to hold the design plate, it is not necessary to add screw holes to the mount or caliper body. In addition, screwing work is not required when assembling the design plate, and torque management is also unnecessary. As described above, according to the present invention, it is possible to improve the productivity of the floating caliper having the design plate and the workability of assembling the design plate.

It is a block diagram of the disc brake device of 1st Embodiment. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. It is a perspective view of the disc brake device of 1st Embodiment. It is a perspective view which shows the state before assembling the design plate of the disc brake device of 1st Embodiment. It is a perspective view of the design plate of 1st Embodiment. It is a rear view of the disc brake device of 1st Embodiment. It is a top view of the 1st pad support of 1st Embodiment. It is a side view of the 1st pad support of 1st Embodiment. It is a rear view of the 1st pad support of 1st Embodiment. It is a perspective view of the 1st pad support of 1st Embodiment. It is a schematic diagram which shows the modification of the arm part and the engaging part of 1st Embodiment. It is a perspective view of the concave part of the modification 1. It is a conceptual diagram for demonstrating the concave part and the plate part of the modification 1. It is a conceptual diagram for demonstrating the concave part and the plate part of the modification 1. It is a conceptual diagram for demonstrating the concave part and the position control surface of the modification 2. It is a conceptual diagram for demonstrating the concave part and the regulation part of the modification 3. It is a conceptual diagram which shows an example of the arm part which has the recess and the connection part. It is a perspective view of the floating caliper of the 2nd Embodiment. It is a perspective view which shows the floating caliper in the state before assembling the design plate in 2nd Embodiment. It is a perspective view of the design plate of 2nd Embodiment. It is a perspective view of the 1st pad support of 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Each figure used for explanation is a conceptual diagram. Further, in the description, the axial direction of the disc rotor R is referred to as "rotor axial direction", the radial direction of the disc rotor R is referred to as "rotor radial direction", and the circumferential direction of the disc rotor R is referred to as "rotor circumferential direction". Further, the vehicle body side of the disc rotor R is referred to as the inner side, and the outer side (vehicle surface side) of the disc rotor R is referred to as the outer side. That is, one side of the disc rotor R in the axial direction is the outer side, and the other side of the disc rotor R in the axial direction is the inner side. Note that FIGS. 1 and 2 are schematic views for explaining the configuration of the disc brake device 100, and the design plate 9 and the engaging portion 72 are omitted. Since FIGS. 1 and 2 are schematic views, there are some parts that do not match the appearance of the other figures.

<First Embodiment>
As shown in FIGS. 1 and 2, the disc brake device 100 includes a disc rotor R that rotates with wheels and a floating caliper 1. As shown in FIGS. 1, 2, 3, and 4, the floating caliper 1 of the first embodiment includes a mount 2, a caliper body 3, a slide pin 4, a first pad 61, and a second. It has a pad 62, a first pad support 7, a second pad support 8, and a design plate 9.

Mount 2 is a metal member (torque member) attached to a non-rotating member of the vehicle body. The mount 2 has a pair of bridge portions 21 arranged side by side in the circumferential direction of the rotor, a pair of outer side torque receiving portions 22, an outer side bridging portion 23, a pair of inner side torque receiving portions 24, and an inner side bridging. A unit 25 and a unit 25 are provided. The pair of bridge portions 21 straddle the disc rotor R in the rotor axial direction on the outer side in the rotor radial direction. The pair of outer side torque receiving portions 22 extend inward in the rotor radial direction from one end of the pair of bridge portions 21. The outer side bridging portion 23 bridges between the tip portions of the pair of outer side torque receiving portions 22. The pair of inner side torque receiving portions 24 extend inward in the rotor radial direction from the other end of the pair of bridge portions 21. The inner side bridging portion 25 bridges between the tip portions of the pair of inner side torque receiving portions 24.

A pin guide hole 21a extending in the rotor axial direction is formed in each of the pair of bridge portions 21. A slide pin 4 is slidably inserted in the pin guide hole 21a in the rotor axial direction. The caliper body 3 is attached to the mount 2 via a slide pin 4 so as to be relatively movable in the rotor axial direction.

The caliper body 3 is a metal member (for example, an aluminum member) and includes a bridge portion 31, a claw portion 32, a cylinder portion 33, and a pair of fastening portions 34. The bridge portion 31 straddles the disc rotor R in the rotor axial direction on the outer side in the rotor radial direction, and connects the claw portion 32 and the cylinder portion 33.

The claw portion 32 constitutes the outer side portion of the caliper body 3. The claw portion 32 is formed with a recess 321 that is recessed outward in the rotor radial direction from the inner end in the rotor radial direction at a position corresponding to the piston 10. The recess 321 is provided to facilitate the formation of the cylinder hole 331, which will be described later, in the manufacture of the caliper body 3. Since the recess 321 is formed, the tool can be moved in the rotor axial direction without being interfered by the claw portion 32, and it becomes easy to form the cylinder hole 331 extending in the rotor axial direction. The recess 321 of the first embodiment is formed in an arc shape so as to bulge outward in the radial direction of the rotor.

The cylinder portion 33 constitutes an inner side portion of the caliper body 3. The cylinder portion 33 faces the claw portion 32 in the rotor axial direction via the disc rotor R. A cylinder hole 331 opened on the outer side is formed in the cylinder portion 33. The piston 10 is slidably housed in the cylinder hole 331 in the rotor axial direction. The caliper body 3 is divided into a hydraulic chamber 33a by a cylinder portion 33 and a piston 10. The piston 10 moves in the rotor axial direction according to the hydraulic pressure in the hydraulic chamber 33a.

In this way, the caliper body 3 has a cylinder portion 33 that slidably accommodates the piston 10, a claw portion 32 that is arranged to face the cylinder portion 33 via the disc rotor R, and a cylinder portion that straddles the disc rotor R. It has a bridge portion 31 that connects the 33 and the claw portion 32.

Each of the pair of fastening portions 34 extends from the cylinder portion 33 to a position facing the pin guide hole 21a. That is, the tip end portion of the fastening portion 34 on one side in the rotor circumferential direction faces the pin guide hole 21a on one side in the rotor circumferential direction. The tip of the fastening portion 34 on the other side in the rotor circumferential direction faces the pin guide hole 21a on the other side in the rotor circumferential direction. Each fastening portion 34 is formed with a fastening hole that penetrates in the rotor axial direction and has a thread formed on the inner peripheral surface.

The slide pin 4 is a partially bolt-shaped metal member (so-called slide pin bolt) attached to each fastening portion 34. The base end portion of one slide pin 4 is fastened to one fastening portion 34. The base end portion of the other slide pin 4 is fastened to the other fastening portion 34. The tip of each slide pin 4 is accommodated in the corresponding pin guide hole 21a so as to be relatively movable in the axial direction. Boots 5 are attached to a part of each slide pin 4.

The first pad 61 and the second pad 62 (hereinafter, also referred to as “

pads

61 and 62”) are brake pads, and are rotors to the mount 2 via the corresponding first pad support 7 and second pad support 8, respectively. It is mounted so that it can slide in the axial direction. As shown in FIG. 2, the

pads

61 and 62 are arranged to face each other in the rotor axial direction via the disc rotor R. The

pads

61 and 62 each have a friction material 601 that applies a braking force to the disc rotor R by being slidably contacted with the disc rotor R, and a back plate 602 that supports the back surface of the friction material 601. ..

The first pad 61, which is a pad on the outer side, is arranged between the claw portion 32 of the caliper body 3 and the disc rotor R. The second pad 62, which is a pad on the inner side, is arranged between the piston 10 and the disc rotor R. By pressurizing the hydraulic chamber 33a, the piston 10 and the second pad 62 are pressed toward the disc rotor R, and the cylinder portion 33 is pressed in the direction away from the disc rotor R. As a result, the caliper body 3 moves relative to the mount 2 due to the slide of the slide pin 4, the claw portion 32 and the first pad 61 approach the disc rotor R, and the pair of friction materials 601 sandwich the disc rotor R. In this way, the floating caliper 1 applies a friction braking force to the disc rotor R.

The first pad support 7 and the second pad support 8 are plate-shaped metal members mounted on the mount 2. A pair of first pad supports 7 and a pair of second pad supports 8 are mounted on the mount 2. Two first pad supports 7 are assembled to the outer side torque receiving portion 22 so as to sandwich the first pad 61 in the rotor circumferential direction. Further, two second pad supports 8 are assembled to the inner side torque receiving portion 24 so as to sandwich the second pad 62 in the rotor circumferential direction.

The first pad support 7 positions the first pad 61. The second pad support 8 positions the second pad 62. The first pad support 7 and the second pad support 8 are also called retainers. The mount 2 slidably supports the

pads

61 and 62 in the rotor axial direction via the first pad support 7 and the second pad support 8. The first pad 61 slides with respect to the first pad support 7, and the second pad 62 slides with respect to the second pad support 8.

As described above, the floating caliper 1 has a pair of first pad supports 7 that slidably support the first pad 61 in the rotor axial direction and a pair that slidably supports the second pad 62 in the rotor axial direction. The second pad support 8 and the mount 2 to which the pair of the first pad support 7 and the pair of the second pad support 8 are assembled are provided.

The design plate 9 is arranged to face the outer surface (one end surface in the rotor axial direction) of the claw portion 32 for the purpose of improving the design of the floating caliper 1 and protecting parts. The design plate 9 of the first embodiment is, for example, a resin or metal part, and is assembled to the mount 2 via the first pad support 7.

(Details of design plate and 1st pad support)
As shown in FIGS. 5 and 6, the design plate 9 includes a plate portion 91 arranged to face the outer surface of the claw portion 32, and a pair of arm portions 92 protruding from the plate portion 91. Each arm portion 92 projects from a surface (hereinafter referred to as “back surface”) 91a of the plate portion 91 facing the claw portion 32 toward the disc rotor R. That is, each arm portion 92 projects from the back surface 91a of the plate portion 91 in the rotor axial direction.

One arm portion 92 is formed at one end in the rotor circumferential direction of the plate portion 91 so as to correspond to the one first pad support 7. The other arm portion 92 is formed at the other end of the plate portion 91 in the circumferential direction of the rotor so as to correspond to the other first pad support 7. Each arm portion 92 has a recess 921 capable of accommodating an engaging portion 72 described later. Each arm portion 92 is formed with a recess 921 that is recessed on one side in the rotor axial direction. The recess 921 is open on the other side in the rotor axial direction. The recess 921 is a portion of the arm portion 92 that forms a recessed portion, and can be said to be a recessed portion. That is, the recess 921 has a side surface (peripheral surface) and a bottom surface.

A through hole 921a into which a protrusion 723, which will be described later, is inserted is formed in the recess 921 of each arm portion 92. The through hole 921a penetrates the side surface of the recess 921 and communicates the inside and outside of the recess 921. The through hole 921a is formed on the side surface on one side in the rotor circumferential direction in the recess 921 on one side in the rotor circumferential direction, and is formed on the side surface on the other side in the rotor circumferential direction in the recess 921 on the other side in the rotor circumferential direction. That is, the through hole 921a of the first embodiment is formed on the side surface on the side away from the first pad 61 in the rotor circumferential direction (hereinafter, also referred to as “rotor circumferential separation side”). The pair of arm portions 92 are formed line-symmetrically with each other.

As shown in FIGS. 7, 8, 9, and 10, each first pad support 7 is a continuous plate-shaped member, and is formed by bending one metal plate. That is, each first pad support 7 is a curved metal plate member. Each first pad support 7 includes a main body portion 71 that is assembled to the mount 2 and an engaging portion 72 that protrudes from the main body portion 71 and engages with the arm portion 92.

The main body 71 is formed in a U shape and is fitted into the recess 221 of the outer torque receiving portion 22. A plurality of guide portions 71a and a spring portion 71b are formed in the main body portion 71. The guide portion 71a and the spring portion 71b each project from one end portion (end portion on the plate portion 91 side) of the main body portion 71 in the rotor axial direction. The spring portion 71b has a folded-back portion curved to the other side in the rotor axial direction so as to form a leaf spring. The spring portion 71b presses the first pad 61 outward in the rotor radial direction. The first pad 61 is slidably in contact with the main body 71 including the spring 71b.

The engaging portion 72 is engaged with the arm portion 92 in a state of being housed in the recess 921 of the arm portion 92 and pressing the inner surface of the recess 921. The engaging portion 72 is formed so as to have a tightening allowance with respect to the recess 921. The engaging portion 72 protrudes from one end of the main body 71 in the rotor axial direction. More specifically, the engaging portion 72 includes a proximal end portion 721, a curved portion 722, and a protruding portion 723. The base end portion 721 projects from the main body portion 71 toward the rotor circumferentially separated side so that the engaging portion 72 does not interfere with the assembly of the first pad 61.

The curved portion 722 extends from the base end portion 721 to one side in the rotor axial direction, and is curved in a U shape so that the inner surface of the recess 921 can be pressed. The curved portion 722 constitutes a leaf spring. It can be said that the engaging portion 72 has a leaf spring portion (curved portion 722) that presses the inner surface of the recess 921. More specifically, the curved portion 722 includes a first portion 722a, a second portion 722b, and a third portion 722c.

The first part 722a extends from the base end part 721 to one side in the rotor axial direction. The second part 722b is curved in an arc shape so as to be folded back from the first part 722a to the other side in the rotor axial direction. The third part 722c extends from the second part 722b to the other side in the rotor axial direction. The third part 722c is inclined so as to be separated from the first part 722a toward the other side in the rotor axial direction.

In the first embodiment, the first part 722a is located on the rotor circumferentially separated side from the third part 722c. In the state before the engaging portion 72 is inserted into the recess 921, the maximum width of the curved portion 722 in the rotor circumferential direction is larger than the opening width of the recess 921 in the rotor circumferential direction. That is, the engaging portion 72 is formed so as to have a tightening margin in the rotor circumferential direction with respect to the recess 921. An opening 722d penetrating in the circumferential direction of the rotor is formed at the end of the curved portion 722 on the side separated from the circumferential direction of the rotor (that is, the first portion 722a).

The protruding portion 723 protrudes from the curved portion 722 so as to be elastically deformable. More specifically, the protruding portion 723 projects from the portion 722e of the curved portion 722 that partitions the opening 722d to the other side in the rotor axial direction and the separating side in the rotor circumferential direction. The protrusion 723 overlaps (overlaps) a part of the opening 722d in the rotor circumferential direction. The protrusion 723 is formed at a position corresponding to the through hole 921a of the recess 921. The opening 722d can be said to be a punched portion, and the protruding portion 723 can be said to be a return portion or a hook portion.

When assembling the design plate 9 and the first pad support 7, the curved portion 722 and the protruding portion 723 are inserted into the recess 921 while being elastically deformed. When the protrusion 723 reaches the through hole 921a and the protrusion 723 is inserted into the through hole 921a by the restoring force, the protrusion 723 and the recess 921 engage with each other. This engaging structure can also be called a snap fit. The pair of arm portions 92 engages with the pair of engaging portions 72. In this way, the design plate 9 is held by the first pad support 7. That is, the design plate 9 is assembled to the mount 2 via the first pad support 7. Further, in a state where the protruding portion 723 and the concave portion 921 are engaged, the curved portion 722 presses the inner surface of the concave portion 921 by the restoring force.

When removing the design plate 9 from the first pad support 7, the operator inserts a rod-shaped member into the through hole 921a from the outside of the arm portion 92, and presses the protruding portion 723 with the rod-shaped member, for example. The operator can pull out the arm portion 92 from the engaging portion 72 while elastically deforming the protruding portion 723 with the rod-shaped member to disengage the engagement.

(Effect of the first embodiment)
The design plate 9 of the first embodiment includes an arm portion 92, and the first pad support 7 includes an engaging portion 72. According to this configuration, the design plate 9 can be held by the caliper body 3 by processing the design plate 9 and the first pad support 7 without processing the mount 2 and the caliper body 3. By using the first pad support 7 attached to the mount 2 for holding the design plate 9, it is not necessary to add screw holes to the mount 2 and the caliper body 3. Further, in assembling the design plate 9, screwing work is not required, and torque management is also unnecessary. As described above, according to the first embodiment, it is possible to improve the productivity of the floating caliper 1 having the design plate 9 and the workability of assembling the design plate 9.

The engaging portion 72 of the first embodiment is engaged with the arm portion 92 in a state of being housed in the recess 921 and pressing the inner surface of the recess 921. According to this configuration, the contact state between the recess 921 and the engaging portion 72 is maintained even after assembly, and rattling between the arm portion 92 and the engaging portion 72 is suppressed.

The engaging portion 72 of the first embodiment includes a curved portion 722 and a protruding portion 723, and a through hole 921a is formed in the recess 921. According to this configuration, the engaging portion 72 and the arm portion 92 can be engaged with each other by a simple configuration. Further, by providing the through hole 921a in the recess 921, the operator can deform the protruding portion 723 from the outside through the through hole 921a, and the work of releasing the engaged state becomes easy. Further, since the first pad support 7 is made of a metal plate member, it is relatively easy to process and change the design of the engaging portion 72.

The protruding portion 723 of the first embodiment protrudes from the portion of the curved portion 722 that partitions the opening 722d. According to this configuration, the protrusion 723 can be bent through the opening 722d at the time of manufacturing, which facilitates manufacturing.

The arm portion 92 of the first embodiment projects from the back surface 91a of the plate portion 91 in the rotor axial direction. According to this configuration, the arm portion 92 is difficult to see from the outside of the vehicle (front of the design plate 9), and the influence of the arm portion 92 on the design of the design plate 9 can be suppressed.

(others)
The present invention is not limited to the above embodiment. For example, the protruding portion 723 may not be formed in the curved portion 722, but the protruding portion may be formed in the through hole 921a of the recess 921. For example, as shown in FIG. 11, the protruding portion 922 formed in the through hole 921a of the concave portion 921 may be configured to be inserted into the opening 722d of the curved portion 722 through elastic deformation at the time of assembly. As a result, the arm portion 92 and the engaging portion 72 are engaged with each other. That is, the protruding portion (hook portion) in the engagement may be formed on either the arm portion 92 or the engaging portion 72. Further, a recess may be formed in the engaging portion 72, and the arm portion 92 may be accommodated in the recess to engage the engaging portion 72 and the arm portion 92.

Further, the engagement between the arm portion 92 and the engaging portion 72 may be realized by a snap-fit structure (for example, a hook portion and a recess) other than the above. For example, a resin snap-fit member may be provided on the plate portion 91 and the first pad support 7. Further, the arm portion 92 may protrude from a portion other than the back surface 91a of the plate portion 91. Further, the engaging portion 72 may be formed so as not to press the inner surface of the recess 921. That is, the engaging portion 72 may be formed with respect to the recess 921 without a tightening margin, and may be configured to engage with the arm portion 92 by, for example, a protruding portion 723. The design plate 9 can be held only by engagement.

Further, the through hole 921a of the recess 921 can be formed on an arbitrary side surface of the recess 921. Further, the engaging portion 72 may not include the base end portion 721, and the curved portion 722 may extend from the main body portion 71 in the rotor axial direction. In this case, for example, the positions of the first part 722a and the third part 722c are opposite to those of the above embodiment. Further, the design plate 9 may include a portion extending from the peripheral end portion of the plate portion 91 in the rotor axial direction and covering the caliper body 3.

Further, the engaging portion 72 can extend from any portion of the main body portion 71, not limited to the position of the above embodiment. Further, the engaging portion 72 may be formed only on one of the pair of first pad supports 7. However, from the viewpoint of improving the holding force, the engaging portions 72 are formed on both of the pair of first pad supports 7, and the pair of arm portions 92 corresponding to the engaging portions 72 are formed on the plate portion 91. preferable. Further, the floating caliper 1 may be provided with three or more arm portions 92 and three or more engaging portions 72. As described above, even with the configurations described in other items, the design plate 9 can be held by the caliper body 3 without any additional work and screwing work on the mount 2 and the caliper body 3.

Further, in the above embodiment, the flat portion (excluding the curved portion such as the curved portion 722) of the engaging portion 72 of the first pad support 7 is formed so as to intersect (for example, orthogonally) with a virtual straight line extending in the circumferential direction of the rotor. However, it may be formed so as to intersect (for example, orthogonally) with a virtual straight line extending in the radial direction of the rotor. That is, the virtual straight line orthogonal to the plane portion of the engaging portion 72 extends in the rotor circumferential direction in the above embodiment, but may extend in the rotor radial direction. In the former configuration (configuration of the first embodiment), the first pad support 7 is easy to bend in the rotor circumferential direction and is difficult to bend in the rotor radial direction, but in the latter configuration, the first pad support 7 is easy to bend in the rotor radial direction. It becomes difficult to bend in the rotor circumferential direction. Further, one first pad support 7 may have the former configuration, and the other first pad support 7 may have the latter configuration.

Further, the engaging direction (insertion direction) between the recess 921 and the engaging portion 72 of the first pad support 7 is not limited to the rotor axial direction as in the above embodiment, but is, for example, the rotor circumferential direction or the rotor radial direction. May be good. For example, the recess 921 and the engaging portion 72 may be formed so that the design plate 9 is slid or rotated in parallel with the plate portion 91 and assembled to the engaging portion 72.

(Modification example 1)
As a modification 1 of the first embodiment, an embodiment in which the recess 921 and the plate portion 91 are made of different materials will be described. In the first modification, the recess 921 is made of a material having higher heat resistance than the plate portion 91. Heat resistance can be said to be the degree (temperature) of the high temperature at which physical properties can be maintained when exposed to high temperatures. The higher the heat resistance, the more the physical properties (for example, shape) can be maintained against a high temperature. As an example, high heat resistance means a high glass transition point.

As shown in FIGS. 12, 13, and 14, the design plate 9 is formed by insert molding in which the recess 921 is inserted into the plate portion 91. That is, the design plate 9 of the modified example 1 is configured by integrating the recess 921 and the plate portion 91, which are separate members from each other.

The recess 921 is made of a material having higher heat resistance than the plate portion 91. For example, the material of the plate portion 91 is a material classified as engineering plastic, and the material of the recess 921 is a material having higher heat resistance than the material of the plate portion 91 among the materials classified as engineering plastic.

In the first modification, as shown in FIG. 14, the entire arm portion 92 constitutes the recess 921. The entire arm portion 92 does not have to form the recess 921. In this case, the arm portion 92 includes a recess 921 and a connecting portion 923 that connects the recess 921 and the plate portion 91 (see FIG. 17). In this case, the connecting portion 923 may be made of a material different from that of the recess 921. As described above, the arm portion 92 is provided with a recess 921 at least in a part thereof. Since the other configurations of the modified example 1 are the same as those of the first embodiment, the description thereof will be omitted. Further, although not shown, the above configuration is adopted in the arm portions 92 on both sides in the circumferential direction of the rotor.

According to the first modification, since the plate portion 91 and the recess 921 are made of different materials, the material can be selected according to the function and performance required for each portion of the design plate 9. In the first modification, since the material of the recess 921 is higher in heat resistance than the plate portion 91, even if heat is transferred from the mount 2 which tends to be hot to the recess 921 via the first pad support 7. The function (shape) of the recess 921 can be maintained. That is, deformation of the recess 921 due to high heat is suppressed, and the engagement between the first pad support 7 and the recess 921 is more reliably maintained.

Further, when selecting the material of the plate portion 91 that does not come into direct contact with the mount 2 and the first pad support 7, the design can be prioritized over the heat resistance. That is, according to the first modification, the degree of freedom in selecting the material of the plate portion 91 constituting the design surface visually observed from the outside of the vehicle can be increased. The recess 921 (arm portion 92) and the plate portion 91 may be made of, for example, resin or metal, respectively.

(Modification 2)
As a modification 2 of the first embodiment, as shown in FIG. 15, a mode in which each recess 921 has a position restricting surface 921b will be described. The modified example 2 can be applied to, for example, the configuration of the first embodiment or the configuration of the modified example 1. Therefore, other configurations of the modified example 2 will be omitted because the above description can be referred to.

With the design plate 9 assembled to the first pad support 7, the position control surface 921b is in contact with the mount 2. The position restricting surface 921b is, for example, flat and is the other end surface of the recess 921 (arm portion 92) in the rotor axial direction. The annular opening end surface of each recess 921 is in contact with the surface of the mount 2 (one end surface in the rotor axial direction) except for the recessed portion 20a of the mount 2. The recessed portion 20a is a portion in which a part of the first pad support 7 is accommodated. The recessed portion 20a may be provided on the open end surface of the recessed portion 921.

The position restricting surface 921b and the mount 2 are in contact with each other in both the concave portion 921 on one side in the circumferential direction of the rotor and the concave portion 921 on the other side in the circumferential direction of the rotor. The surface of the mount 2 with which the position-regulating surface 921b contacts is, for example, flat. In this case, the flat position restricting surface 921b and the surface of the flat mount 2 are in contact with each other. As a result, the contact area is efficiently secured. The surface of the position restricting surface 921b and / or the mount 2 is not limited to a flat surface, and may be, for example, a curved surface or a shape having one or more convex portions. The position-regulating surface 921b and the mount 2 are not limited to surface contact, but may be point contact, for example.

The first pad support 7 and the design plate 9 may swing with respect to the mount 2 according to the movement of the vehicle. For example, the design plate 9 may swing in an arc shape with the fixed end of the first pad support 7 with respect to the mount 2 as a fulcrum. However, according to the second modification, since the position restricting surface 921b is in contact with the mount 2, the arc-shaped swing, that is, the motion of swinging in the rotor circumferential direction while approaching the mount 2 is suppressed. Further, when the position regulating surface 921b tries to move (slide), a frictional force is generated between the position regulating surface 921b and the mount 2, and the movement is suppressed.

As described above, according to the modified example 2, the swing (swing) of the design plate 9 can be suppressed, and the engagement between the design plate 9 and the first pad support 7 can be more reliably maintained. Further, by suppressing the swing, the deformation (bending) of the first pad support 7 is suppressed, and the durability of the first pad support 7 is improved. Further, by applying the modification 2 to the modification 1, the position-regulating surface 921b is also formed of a material having high heat resistance, so that the shape can be maintained against the high heat of the mount 2 in contact. The position restricting surface 921b may be formed so as to project from a part of the open end surface of the recess 921, for example. Further, the position regulating surface 921b may be formed so as to come into contact with the caliper body 3. Further, the portion of the recess 921 that forms the position restricting surface 921b and the other portion may be formed of a different material.

(Modification example 3)
As a modification 3 of the first embodiment, as shown in FIG. 16, a mode in which a regulation unit 93 is provided for each recess 921 of the modification 2 will be described. The description of the configuration other than the regulation unit 93 will be omitted. Each regulating portion 93 extends in the rotor axial direction from the side surface of the recess 921 (for example, around the through hole 921a) so as to come into contact with the side surface of the mount 2.

Each regulation unit 93 is in contact with the side surface of the mount 2 on the rotor circumferentially separated side (the side farther from the first pad 61: see FIG. 9). That is, the two regulating portions 93 are arranged so as to sandwich the mount 2 in the circumferential direction of the rotor. Specifically, one of the regulating portions 93 is in contact with the side surface of the mount 2 (outer side torque receiving portion 22) on one side in the rotor circumferential direction. The other regulating portion 93 is in contact with the side surface of the mount 2 (outer side torque receiving portion 22) on the other side in the rotor circumferential direction. It can be said that each regulation unit 93 has a position regulation surface 93a that contacts the mount 2.

According to the third modification, the regulation portion 93 is in contact with the mount 2, so that the design plate 9 is suppressed from swinging with respect to the mount 2. Therefore, the durability of the first pad support 7 can be improved. Further, since at least two regulating portions 93 are arranged so as to sandwich the mount 2, it is possible to suppress swinging to either side in the circumferential direction of the rotor.

The two regulating portions 93 may be formed so as to be in contact with the side surfaces of the mount 2 on the first pad side (see FIG. 9) in the circumferential direction of the rotor. In other words, the two regulating portions 93 may be arranged so as to be sandwiched between the pair of outer side torque receiving portions 22. With this configuration as well, it is possible to suppress swinging to either side in the circumferential direction of the rotor. Further, the regulation unit 93 may be formed so as to come into contact with the caliper body 3. Further, the regulating portion 93 may be formed so as to come into contact with the end face of the mount 2 in the rotor radial direction.

<Second Embodiment>
A second embodiment will be described with reference to FIGS. 18, 19, 20, and 21. The floating caliper 1A of the second embodiment includes a mount 2, a caliper body 3, a slide pin 4, a first pad 61, a second pad 62, a first pad support 7A, and the same as in the first embodiment. It has a second pad support 8 and a design plate 9A. Hereinafter, with respect to the second embodiment, parts different from those of the first embodiment (first pad support 7A and design plate 9A) will be described, and description of other parts will be omitted. In the description of the second embodiment, the description and drawings of the first embodiment and each modification can be referred to. Since the drawings of the first embodiment can be referred to, the reference numerals are appropriately omitted in the drawings of the second embodiment.

The design plate 9A of the second embodiment includes a plate portion 91 whose outer surface constitutes the design surface 91b, and a side wall 94 extending from the outer peripheral edge of the plate portion 91 to the mount 2 side (the other side in the rotor axial direction). .. The plate portion 91 is a portion that is arranged to face the outer surface of the claw portion 32 and is formed in a flat shape. The design surface 91b is an outer surface (one end surface in the rotor axial direction) of the plate portion 91. The design surface 91b is not limited to a flat surface, and may have irregularities, for example, or may be curved.

The side wall 94 is formed as a whole on the outer peripheral edge of the plate portion 91. In detail, the side wall 94 forms a first side wall portion 941 forming a side surface on one side in the rotor circumferential direction, a second side wall portion 942 forming a side surface on the other side in the rotor circumferential direction, and a side surface on the inner side in the rotor radial direction. A third side wall portion 943 and a fourth side wall portion 944 forming an outer side surface in the radial direction of the rotor are provided.

Through holes 95 are formed in the first side wall portion 941 and the second side wall portion 942, respectively. In this example, the central portion of the fourth side wall portion 944 in the circumferential direction of the rotor has a smaller amount of protrusion from the plate portion 91 than both ends in the circumferential direction of the rotor. The entire design plate 9A is made of a material having high heat resistance, for example, the recess 921 of the first modification. The material of the design plate 9A is, for example, a material having high heat resistance among the materials classified as engineering plastics.

The first pad support 7A is a metal member that positions the first pad 61 as in the first embodiment. Two first pad supports 7A are assembled to the outer side torque receiving portion 22 so as to sandwich the first pad 61 in the rotor circumferential direction. Since the configurations of the two first pad supports 7A are symmetrical to each other, the first pad support 7A on the other side in the circumferential direction of the rotor will be described as an example.

The first pad support 7A includes a main body portion 71 that is assembled to the mount 2 and a protruding engaging portion 73 that protrudes from the main body portion 71 and engages with the through hole 95. The main body 71 is formed in a U shape and is fitted into the outer torque receiving portion 22. The detailed configuration of the main body 71 will be omitted because a known configuration or the first embodiment can be referred to.

The protruding engaging portion 73 extends in a direction away from the first pad 61 (one side in the rotor circumferential direction and one side in the rotor axial direction) from one end in the rotor axial direction of the main body 71. More specifically, the protruding engaging portion 73 includes a first portion 731 extending from the main body portion 71 to one side in the rotor axial direction, and a second portion 732 extending from the first portion 731 to the other side in the rotor circumferential direction. ..

The first part 731 is formed in a flat shape so that the perpendicular line extends in the circumferential direction of the rotor. At the time of assembling to the design plate 9A, the first part 731 is elastically deformed by an operator or the like (may be a working robot), for example, in the circumferential direction of the rotor, and is arranged inside the design plate 9A.

The second part 732 is curved so as to be folded back to one side in the circumferential direction of the rotor, and is formed in a leaf spring shape. The second part 732 can also be said to be a curved part or a leaf spring part. The second part 732 is press-fitted into the through hole 95 by an operator or the like at the time of assembling to the design plate 9A. The second part 732 is elastically deformed in the through hole 95 so that the width in the rotor axial direction becomes smaller than the original shape. That is, the second portion 732 is engaged with the side wall 94 in a state where the side wall 94 (second side wall portion 942) is pressed by the restoring force of the spring in the through hole 95. By engaging the protruding engaging portion 73 and the through hole 95, the movement of the design plate 9A with respect to the first pad support 7A in the rotor circumferential direction, the rotor radial direction, and the rotor axial direction is restricted.

In this way, the design plate 9A is restricted from moving in at least the rotor axial direction (here, the direction perpendicular to the design surface 91b) with respect to the first pad support 7A (and mount 2). It is attached to. The configuration in which the first pad support (7, 7A) restricts the movement of the design plate (9, 9A) is also established in the first embodiment and each modification. The design surface 91b is a surface opposite to the back surface 91a of the plate portion 91 in the first embodiment.

Further, the design plate 9A is attached to the first pad support 7A so that movement in the rotor circumferential direction and the rotor radial direction (here, the direction parallel to the design surface 91b) with respect to the first pad support 7A is also restricted. There is. The configuration in which the first pad support (7, 7A) restricts the movement of the design plate (9, 9A) is also established in the first embodiment and each modification.

When removing the design plate 9A from the first pad support 7A, for example, an operator or the like presses the protruding engaging portion 73 in the through hole 95 with a rod-shaped member from the outside of the design plate 9A and penetrates the protruding engaging portion 73. Push out of the hole 95.

(Effect of the second embodiment)
According to the second embodiment, the design plate 9A can be assembled to the floating caliper by attaching (engaging / fitting / fixing) the design plate 9A to each first pad support 7A. As a result, the same effect as that of the first embodiment is exhibited. Since the movement of the design plate 9A with respect to the first pad support 7A in at least both directions in the rotor axial direction is restricted, the design plate 9A is prevented from approaching or moving away from the mount 2, and the design plate 9A is a floating caliper. It becomes difficult to come off from 1A. Further, since the movement of the design plate 9A with respect to the first pad support 7A in the rotor circumferential direction and the rotor radial direction is restricted, the design plate 9A can be fixed more reliably, and there is no need to fix the design plate 9A by other parts. Assemblability is further improved. According to the second embodiment, the assembly of the design plate 9A can be completed only by fixing the design plate 9A and the first pad support 7A.

Further, according to the second embodiment, the design plate 9A can be processed only by the through hole 95, which facilitates the production. Further, since the through hole 95 is provided on the side wall 94, no design restriction is imposed on the design surface 91b, and the degree of freedom in design production is increased. Further, since the through hole 95 is provided on the side wall 94, the direction in which the protruding engaging portion 73 is press-fitted deviates from the rotor axial direction. As a result, the design plate 9A is less likely to come off from the floating caliper 1A due to shaking or impact in the rotor axial direction.

(Modified mode of the second embodiment)
The present invention is not limited to the above embodiment. For example, a protrusion (claw) similar to the protrusion 723 of the first embodiment is formed on the protrusion engagement portion 73, and a recess is formed on the side wall 94 (for example, the inner wall of the through hole 95) like the recess 921 of the first embodiment. It may have been done. Considering the removal of the design plate 9A, it is preferable that the recess is formed so that a rod-shaped member can be inserted from the outside.

Further, the through hole 95 may be provided in the third side wall portion 943, the fourth side wall portion 944, and / or the plate portion 91 in place of (or in addition to) the first side wall portion 941 and the second side wall portion 942. good. For example, the through holes 95 may be provided at both ends of the plate portion 91 in the circumferential direction of the rotor. In this case, the protruding engaging portion 73 of each first pad support 7A projects from, for example, the main body portion 71 to one side in the rotor axial direction. Further, for example, one through hole 95 may be provided in the side wall 94, and the other through hole 95 may be provided in the plate portion 91.

Further, the side wall 94 may be formed with a concave recess into which the protruding engaging portion 73 is press-fitted, instead of the through hole 95. Also by this, the design plate 9A and the first pad support 7A can be fixed. As described above, the design plate 9A includes an engaged portion (for example, a through hole 95 or a recess) that engages with the protruding engaging portion 73. The design plate 9A of the second embodiment includes an engaged portion that engages with the protruding engaging portion 73 while being pressed by the protruding engaging portion 73. Further, the side wall 94 is not limited to being formed on the entire outer peripheral edge of the plate portion 91, and may be composed of, for example, only the first side wall portion 941 and the second side wall portion 942. Further, the side wall 94 may not be provided.

Further, as in the first modification, for example, a part of the side wall 94 on which the through hole 95 is formed may be formed of a material having higher heat resistance than the plate portion 91. The portion forming the through hole 95 (for example, the

side wall portions

941, 942, etc.) may be formed of a material different from other portions (material having higher heat resistance than other portions). Further, the configuration of the second embodiment may be appropriately combined with the concept and configuration of the first embodiment and each modification.

Claims

A caliper having a cylinder portion that slidably accommodates a piston, a claw portion that is arranged to face the cylinder portion via a disc rotor, and a bridge portion that straddles the disc rotor and connects the cylinder portion and the claw portion. With the body
A first pad arranged between the claw portion and the disc rotor,
A second pad arranged between the piston and the disc rotor,
A first pad support that slidably supports the first pad in the axial direction of the disc rotor, and
A second pad support that slidably supports the second pad in the axial direction of the disc rotor, and
With the mount to which the first pad support and the second pad support are assembled,
A design plate arranged to face the outer surface of the claw portion and
Floating caliper with
When the axial direction of the disc rotor is the rotor axial direction,
The design plate is a floating caliper attached to the first pad support so that movement of the design plate with respect to the first pad support at least in the rotor axial direction is restricted.
When the circumferential direction of the disc rotor is the rotor circumferential direction and the radial direction of the disc rotor is the rotor radial direction,
The first aspect of the present invention, wherein the design plate is attached to the first pad support so that the movement of the design plate in the rotor circumferential direction and the rotor radial direction with respect to the first pad support is also restricted. Floating caliper.
The first pad support includes a main body portion to be assembled to the mount and a protruding engaging portion protruding from the main body portion.
The floating caliper according to claim 1 or 2, wherein the design plate includes an engaged portion that engages with the protruding engaging portion.
The design plate includes a plate portion arranged to face the outer surface of the claw portion and an arm portion protruding from the plate portion.
The floating caliper according to claim 1 or 2, wherein the first pad support includes a main body portion assembled to the mount and an engaging portion that protrudes from the main body portion and engages with the arm portion.
The arm portion has a recess that can accommodate the engaging portion.
The floating caliper according to claim 4, wherein the engaging portion is housed in the recess and is engaged with the arm portion while pressing the inner surface of the recess.
The first pad support is a curved metal plate member.
The engaging portion includes a curved portion that is curved so that the inner surface of the concave portion can be pressed, and a protruding portion that protrudes from the curved portion so that it can be elastically deformed.
The floating caliper according to claim 5, wherein a through hole into which the protruding portion is inserted is formed in the recess.
The curved portion has an opening at a position corresponding to the through hole.
The floating caliper according to claim 6, wherein the protruding portion protrudes from a portion of the curved portion that partitions the opening.
The floating caliper according to any one of claims 5 to 7, wherein the recess and the plate portion are made of different materials.
The floating caliper according to claim 8, wherein the recess is made of a material having higher heat resistance than the plate portion.
The floating caliper according to any one of claims 5 to 9, wherein the recess has a position-regulating surface in contact with the mount or the caliper body.
The floating caliper according to any one of claims 4 to 10, wherein the arm portion projects from a surface of the plate portion facing the claw portion toward the disc rotor.