JP2021173312A - Floating type caliper - Google Patents

Abstract

To provide a floating type caliper which can be improved in productivity while having a design plate, and can improve the assembling workability of the design plate.SOLUTION: A floating type caliper comprises: a caliper body 3 having a cylinder part 33 for slidably accommodating a piston 10, a claw part 32 oppositely arranged at the cylinder part 33, a bridge part 31 for connecting the cylinder part 33 and the claw part 32 while straddling a disc rotor R; and a design plate 8. A recess 321 which is recessed toward the outside of a radial direction of the disc rotor R from an end part of the disc rotor R at the inside of the radial direction in a position corresponding to the piston 10 is formed at the claw part 32, a groove part 9 is formed at the recess 321, and the design plate 8 comprises a plate part 81 oppositely arranged at an outer face of the claw part 32, and a holding part 82 fixed to the plate part 81, engaged with the groove part 9 in the recess 321, and making the claw part 32 hold the plate part 81.SELECTED DRAWING: Figure 4

Description

The present invention relates to a floating caliper.

The floating caliper includes a caliper body having a cylinder portion for accommodating a 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 in which the design plate is fixed to the mount or 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 a pad support. A floating caliper including a mount that slidably supports the first pad and the second pad in the axial direction of the disc rotor, and a design plate arranged so as to face the outer surface of the claw portion. The claw portion is formed with a concave portion that is recessed from the radially inner end portion of the disc rotor toward the radial outer side of the disc rotor at a position corresponding to the piston, and the recess portion has a groove portion. The design plate is formed and holds a plate portion that is arranged to face the outer surface of the claw portion and a plate portion that is fixed to the plate portion and engages with the groove portion in the recess to hold the plate portion on the claw portion. It has a part and.

According to the present invention, the design plate is held by the claw portion by engaging the holding portion with the groove portion of the recess. This eliminates the need for screwing and fixing the design plate and managing the torque thereof, and improves the workability of assembling the design plate. Further, the concave portion of the claw portion is a portion necessary for efficiently forming the cylinder portion at the time of manufacturing the caliper body, and is originally provided in the caliper body of the floating caliper. In the manufacture of the caliper body, it is only necessary to form a groove in the recess. That is, the processing into the caliper body for assembling the design plate can be minimized. Therefore, the productivity of the floating caliper can be improved.

It is a block diagram of the disc brake device of this embodiment. It is a cross-sectional view (schematic view) of line II-II of FIG. 1 excluding the design plate. It is a perspective view of the floating caliper of this embodiment. It is a perspective view excluding the plate part of the floating caliper of this embodiment. It is a figure which looked at the caliper body of this embodiment from the inside in the radial direction of a disc rotor. It is a conceptual diagram which shows the state before assembling the caliper body and the holding part of this embodiment. It is a side view of the design plate of this embodiment. It is a perspective view of the design plate of this embodiment. It is a rear view of the design plate of this embodiment. It is a side view which shows the modification of the design plate of this embodiment. It is a schematic diagram which shows the modification of the holding part of this embodiment. It is a schematic diagram which shows the modification of the claw part of this embodiment. It is a schematic diagram which shows the modification of the holding part of this 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 there are parts in which the appearances of FIGS. 1 and 2 do not match those of other figures.

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 present embodiment includes a mount 2, a caliper body 3, a slide pin 4, a first pad 61, and a second pad. It has 62, a pad support 7, and a design plate 8.

The 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.

Each of the pair of bridge portions 21 is formed with pin guide holes 21a extending in the rotor axial direction. 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 arm 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 an 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 present embodiment is formed in an arc shape so as to bulge outward in the radial direction of the rotor. Details of the recess 321 will be described later.

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 arm portions 34 extends from the cylinder portion 33 to a position facing the pin guide hole 21a. That is, the tip of the arm 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 arm 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 arm 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 arm portion 34. The base end portion of one slide pin 4 is fastened to the one arm portion 34. The base end portion of the other slide pin 4 is fastened to the other arm 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, which are slidably mounted on the mount 2 in the rotor axial direction via the pad support 7. .. 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 pad support 7 is a plate-shaped metal member mounted on the mount 2. The mount 2 is equipped with four pad supports 7. The two pad supports 7 are assembled to the outer torque receiving portion 22 so as to sandwich the first pad 61 in the rotor circumferential direction. Further, the other two pad supports 7 are assembled to the inner side torque receiving portion 24 so as to sandwich the second pad 62 in the rotor circumferential direction. The pad support 7 positions the pads 61 and 62. The pad support 7 is also called a retainer. The mount 2 slidably supports the pads 61 and 62 in the rotor axial direction via the pad support 7.

The design plate 8 is arranged to face the outer surface (outer side surface) of the claw portion 32 for the purpose of improving the design of the floating caliper 1 and protecting parts. The design plate 8 of the present embodiment is a metal part as an example, and is assembled to the claw portion 32 of the caliper body 3.

(Details of recess and design plate)
As shown in FIGS. 5 and 6, the recess 321 has an inner side surface 321a that is curved in an arc shape. The concave portion 321 is a portion of the claw portion 32 that forms a concave portion, and can be said to be a concave portion forming portion. A groove 9 is formed on the inner side surface 321a of the recess 321. The groove portion 9 includes a first groove 91 and a second groove 92 arranged to face the first groove 91. The first groove 91 is formed on one side of the inner side surface 321a in the circumferential direction of the rotor. The second groove 92 is formed in a portion of the inner side surface 321a on the other side in the circumferential direction of the rotor. The second groove 92 faces the first groove 91 in the circumferential direction of the rotor. The grooves 91 and 92 are recessed in the circumferential direction of the rotor.

As shown in FIGS. 3, 7, 8 and 9, the design plate 8 has a plate portion 81 arranged to face the outer surface of the claw portion 32 and a groove portion 9 fixed to the plate portion 81 in the recess 321. It includes a holding portion 82 that engages and holds the plate portion 81 to the claw portion 32. The plate portion 81 is a plate-shaped member and covers at least a part of the outer surface of the claw portion 32.

The holding portion 82 has a spring mechanism 820 and is housed in the recess 321 in a state where the recess 321 is pressed. The spring mechanism 820 is a leaf spring and includes a fixing portion 821, a first pressing portion 822, and a second pressing portion 823. The plate surface of the spring mechanism 820 extends in the rotor axial direction.

The fixing portion 821 is formed on the surface (hereinafter referred to as “back surface”) 81a side of the plate portion 81 facing the claw portion 32. The fixing portion 821 is formed by partially bending a part of the metal plate constituting the plate portion 81 in the rotor axial direction. The fixing portion 821 extends in the rotor axial direction and the rotor circumferential direction at the inner end portion of the plate portion 81 in the rotor radial direction. As shown in FIG. 7, in a state where the design plate 8 is not assembled to the claw portion 32, the fixing portion 821 extends so as to be orthogonal to the plate portion 81.

The first pressing portion 822 is curved so as to extend in the rotor radial direction with respect to the fixing portion 821 at one end portion (corresponding to the "first fixing portion") in the rotor circumferential direction of the fixing portion 821, and the recess 321 is formed in the rotor. Press to one side in the circumferential direction. More specifically, the first pressing portion 822 includes a first portion 822a, a second portion 822b, and a third portion 822c. The first portion 822a extends outward in the rotor radial direction from one end portion 821a in the rotor circumferential direction of the fixing portion 821. The second part 822b is curved in an arc shape from the outer end portion of the first part 822a in the rotor radial direction to one side in the circumferential direction of the rotor. The second part 822b can be said to be a folded part. The third part 822c extends inward in the rotor radial direction from one end in the rotor circumferential direction of the second part 822b.

The second pressing portion 823 is curved so as to extend in the rotor radial direction with respect to the fixing portion 821 at the other end portion (corresponding to the “second fixing portion”) 821b of the fixing portion 821 in the rotor circumferential direction, and the recess 321 is formed. Press on the other side in the circumferential direction of the rotor. More specifically, the second pressing portion 823 includes a first portion 823a, a second portion 823b, and a third portion 823c. The first portion 823a extends outward in the rotor radial direction from the other end portion 821b in the rotor circumferential direction of the fixing portion 821. The second portion 823b is curved in an arc shape from the outer end portion of the first portion 823a in the radial direction of the rotor to the other side in the circumferential direction of the rotor. The second part 823b can be said to be a folded part. The third part 823c extends inward in the rotor radial direction from the other end in the rotor circumferential direction of the second part 822b.

In the state where the holding portion 82 is arranged in the recess 321 the holding portion 82 is in contact with the recess 321 (including the groove 9), and the first pressing portion 822 and the second pressing portion are elastically deformed in the direction of approaching each other. .. Therefore, a restoring force with respect to the fixed portion 821 is generated in the first pressing portion 822 and the second pressing portion 823. Due to this restoring force, the holding portion 82 presses the recess 321. That is, the recess 321 is pressed in the direction in which the first pressing portion 822 and the second pressing portion are separated from each other.

In summary, the spring mechanism 820 is a leaf spring, and has a fixing portion 821 that is curved in the rotor axial direction from the plate portion 81 and a rotor that is curved so as to extend in the rotor radial direction from one end portion 821a of the fixing portion 821. A first pressing portion 822 that presses one side in the circumferential direction, and a second pressing portion 823 that curves so as to extend in the rotor radial direction from the other end portion 821b of the fixing portion 821 and presses the recess 321 toward the other side in the circumferential direction of the rotor. Has.

The holding portion 82 further includes a first engaging portion 824 and a second engaging portion 825. The first engaging portion 824 projects from the third portion 822c of the first pressing portion 822 to one side in the circumferential direction of the rotor and engages with the first groove 91. The first engaging portion 824 is formed in a plate shape facing the back surface 81a of the plate portion 81, and is arranged in the first groove 91. The first engaging portion 824 is pressed toward the first groove 91 by the first pressing portion 822. The first engaging portion 824 and the bottom surface of the first groove 91 (one end surface in the circumferential direction of the rotor) may be in contact with each other, or the third portion 822c may be in contact with the inner side surface 321a.

The second engaging portion 825 projects from the third portion 823c of the second pressing portion 823 to the other side in the circumferential direction of the rotor and engages with the second groove 92. The second engaging portion 825 is formed in a plate shape facing the back surface 81a of the plate portion 81, and is arranged in the second groove 92. The second engaging portion 825 is pressed toward the second groove 92 by the second pressing portion 823. The second engaging portion 825 and the bottom surface of the second groove 92 (the other end surface in the circumferential direction of the rotor) may be in contact with each other, or the third portion 823c may be in contact with the inner side surface 321a. The first engaging portion 824 and the second engaging portion 825 are formed by bending a part of a leaf spring (spring mechanism 820). The plane formed by the first engaging portion 824 and the second engaging portion 825 intersects (for example, orthogonally) with a virtual straight line extending in the rotor axial direction. As described above, the holding portion 82 has a pair of holding pieces (824, 825). The plate portion 81 and the holding portion 82 of the present embodiment are formed of a single metal plate.

The holding portion 82 is hooked on the groove portion 9 by the first engaging portion 824 and the second engaging portion 825. That is, the movement of the design plate 8 with respect to the claw portion 32 is restricted by inserting the first engaging portion 824 into the first groove 91 and the second engaging portion 825 into the second groove 92. As an example of assembling the design plate 8 to the claw portion 32, the operator or the working robot elastically deforms the first pressing portion 822 or the second pressing portion 823 while allowing the holding portion 82 to enter the recess 321. Then, the first engaging portion 824 is inserted into the first groove 91, and the second engaging portion 825 is inserted into the second groove 92.

(Effect of this embodiment)
The floating caliper 1 of the present embodiment includes a groove portion 9 and a holding portion 82. According to this configuration, the design plate 8 is held by the claw portion 32 by engaging the holding portion 82 with the groove portion 9. This eliminates the need for screwing and fixing the design plate 8 and managing the torque thereof, and improves the workability of assembling the design plate 8. Further, the recess 321 is a portion necessary for efficiently forming the cylinder portion 33 at the time of manufacturing the caliper body 3, and is originally provided in the caliper body 3 of the floating caliper 1. In the manufacture of the caliper body 3, it is only necessary to form the groove 9 in the recess 321. That is, the processing to the caliper body 3 for assembling the design plate 8 can be minimized. Therefore, the productivity of the floating caliper 1 can also be improved.

Further, the holding portion 82 of the present embodiment has a spring mechanism 820, and is housed in the recess 321 in a state where the spring mechanism 820 presses the recess 321. According to this configuration, the holding force of the holding portion 82 with respect to the recess 321 is increased by the spring mechanism 820 that presses the recess 321 in the circumferential direction of the rotor. In addition to the holding portion 82 and the groove portion 9 being engaged with each other, the pressing force of the holding portion 82 acts on the recess 321 to improve the fixing force of the design plate 8 to the claw portion 32. The rattling of the design plate 8 with respect to the claw portion 32 is also suppressed.

Further, the spring mechanism 820 of the present embodiment is a leaf spring including a fixing portion 821, a first pressing portion 822, and a second pressing portion 823. Since the leaf spring can be formed by bending a metal plate, for example, the spring mechanism 820 can be easily added to the holding portion 82.

Further, in the present embodiment, the groove portion 9 has a first groove 91 and a second groove 92, and the holding portion 82 includes a first engaging portion 824 and a second engaging portion 825 in addition to the spring mechanism 820. .. According to this configuration, the first engaging portion 824 is pressed against the first groove 91 by the first pressing portion 822 and engages with the first groove 91. Further, the second engaging portion 825 is pressed against the second groove 92 by the second pressing portion 823 and engages with the second groove 92. Therefore, the engagement is strengthened and the holding force of the holding portion 82 is improved.

(Modification example 1)
The present invention is not limited to the above embodiment. For example, as shown in FIG. 10, when the design plate 8 is not assembled to the claw portion 32 (hereinafter referred to as “non-assembled state”), the angle formed by the plate portion 81 and the fixing portion 821 is less than 90 degrees (for example). It may be 80 degrees or more and less than 90 degrees). In this case, the outer end portion of the plate portion 81 in the rotor radial direction is inclined toward the claw portion 32 in the non-assembled state, and the design plate 8 is assembled to the claw portion 32 (hereinafter referred to as “assembled state”). It comes into contact with the claw portion 32 and presses the claw portion 32.

By configuring the design plate 8 so that the plate portion 81 presses the claw portion 32 in the assembled state, rattling of the design plate 8 with respect to the claw portion 32 is further suppressed. Further, the plate portion 81 may be formed in an arc shape so as to bulge toward the outer side. As a result, both ends of the plate portion 81 in the circumferential direction of the rotor press the claw portions 32 in the assembled state, and the rattling is suppressed. In this way, even if the restoring force of the design plate 8 based on the elastic deformation of the design plate 8 when shifting from the non-assembled state to the assembled state is used to improve the fixing force of the design plate 8 to the claw portion 32. good.

(Modification 2)
As shown in FIG. 11, the first pressing portion 822 and the second pressing portion 823 are formed so as to be curved from the fixed portion 821 and extend outward in the radial direction of the rotor without folding back (without the second and third portions). You may. The first engaging portion 824 is provided at the outer end portion in the rotor radial direction of the first pressing portion 822 and engages with the first groove 91. The second engaging portion 825 is provided at the outer end portion in the rotor radial direction of the second pressing portion 823 and engages with the second groove 92. The first pressing portion 822 and the second pressing portion 823 are elastically deformed in the circumferential direction of the rotor in the assembled state, and are recessed by the restoring force (for example, via the first engaging portion 824 and the second engaging portion 825). Press 321. The first pressing portion 822 and the second pressing portion 823 press the recess 321 in a direction away from each other. Even with this configuration, the same effect as that of the present embodiment is exhibited.

(Modification example 3)
As shown in FIG. 12, a plurality of recesses 321 may be provided in the claw portion 32. For example, in the case of a floating caliper in which two cylinder holes 331 are formed in the cylinder portion 33 (that is, two pistons 10 are provided), two recesses 321 are formed in the claw portion 32. Even with this configuration, for example, the holding portion 82 can be assembled to the recess 321 by forming the first groove 91 in one recess 321 and forming the second groove 92 in the other recess 321. Even with this configuration, the same effect as that of the above embodiment is exhibited. Further, for example, each recess 321 may be provided with a first groove 91 and a second groove 92, and the plate portion 81 may be provided with two holding portions 82. That is, a plurality of holding portions 82 may be provided so as to correspond to the plurality of recesses 321.

(Modification example 4)
As shown in FIG. 13, the spring mechanism 820 may be configured to include a spring (coil spring). For example, the fixing portion 821 protrudes from the back surface 81a of the plate portion 81. The first pressing portion 822 includes a movable portion 822d and a spring 822e arranged between the movable portion 822d and the fixed portion 821. The second pressing portion 823 includes a movable portion 823d and a spring 823e arranged between the movable portion 823d and the fixed portion 821. The first engaging portion 824 is provided on the movable portion 822d, and the second engaging portion 825 is provided on the movable portion 823d. The springs 822e and 823e are compressed in the assembled state. As a result, in the assembled state, the movable portion 822d and the first engaging portion 824 are pressed toward the recess 321 (first groove 91), and the movable portion 823d and the second engaging portion 825 are pressed toward the recess 321 (second groove 92). ) Is pressed. This also suppresses the rattling of the design plate 8.

(others)
Further, the holding portion 82 does not have to include the spring mechanism 820. For example, the holding portion 82 of FIG. 9 or 11 may be configured so that the first pressing portion 822 and the second pressing portion 823 do not press the recess 321 in the assembled state. In this case, for example, a part of the holding portion 82 is elastically deformed during the assembling work, but returns to the original shape in the assembling state, and no restoring force is generated. The holding portion 82 is assembled to the recess 321 by engaging the first engaging portion 824 and the second engaging portion 825 with the groove portion 9. The design plate 8 is assembled to the claw portion 32 by engaging the holding portion 82 with the groove portion 9. The pressing portion can also be said to be an elastic portion.

Further, the number of grooves constituting the groove portion 9 is not limited to two, and may be one or three or more. Further, the fixing portion 821 may be separated into two parts. That is, the fixing portion 821 may be composed of a first fixing portion that supports the first pressing portion 822 and a second fixing portion that is formed at a position separated from the first fixing portion and supports the second pressing portion 823. .. The two fixing portions are connected via the plate portion 81. For example, when a plurality of recesses 321 are formed in the claw portion 32 as shown in FIG. 12, a first fixing portion is formed at a position corresponding to the recess 321 at one end in the rotor circumferential direction in the plate portion 81, and the rotor circumferential direction. A second fixing portion may be formed at a position corresponding to the recess 321 at the other end. By separating the fixed parts, the degree of freedom in design is improved. It can be said that the fixing portion 821 of the present embodiment also serves as the first fixing portion and the second fixing portion.

1 ... Floating caliper, 10 ... Piston, 2 ... Mount, 3 ... Caliper body, 31 ... Bridge part, 32 ... Claw part, 321 ... Recession, 61 ... 1st pad, 62 ... 2nd pad, 7 ... Pad support, 8 ... Design plate, 81 ... Plate part, 82 ... Holding part, 820 ... Spring mechanism, 821 ... Fixed part (first fixing part, second fixing part), 822 ... First pressing part, 823 ... Second pressing part, 824 ... 1st engaging portion, 825 ... 2nd engaging portion, 9 ... Groove portion, 91 ... 1st groove, 92 ... 2nd groove, R ... Disc rotor.

Claims (4)

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 mount that slidably supports the first pad and the second pad in the axial direction of the disc rotor via a pad support,
A design plate arranged to face the outer surface of the claw portion and
Floating caliper with
A recess is formed in the claw portion at a position corresponding to the piston, which is recessed from the radial inner end of the disc rotor toward the radial outer side of the disc rotor.
A groove is formed in the recess.
The design plate includes a plate portion arranged to face the outer surface of the claw portion, a holding portion fixed to the plate portion and engaged with the groove portion in the recess to hold the plate portion on the claw portion. Floating caliper with. The floating caliper according to claim 1, wherein the holding portion has a spring mechanism and is housed in the recess in a state where the spring mechanism presses the recess. The spring mechanism has a first fixing portion that is curved in the axial direction of the disc rotor from the plate portion, and a concave portion that is curved so as to extend in the radial direction of the disc rotor from the first fixing portion so as to be peripheral to the disc rotor. The first pressing portion that presses in one direction, the second fixing portion that is curved in the axial direction of the disc rotor from the plate portion, and the second fixing portion that is curved so as to extend in the radial direction of the disc rotor from the second fixing portion. The floating caliper according to claim 2, wherein the leaf spring has a second pressing portion that presses the concave portion on the other side in the circumferential direction of the disc rotor. The groove portion includes a first groove and a second groove arranged to face the first groove.
The holding portion includes a first engaging portion that protrudes from the first pressing portion and engages with the first groove, and a second engaging portion that protrudes from the second pressing portion and engages with the second groove. The floating caliper according to claim 3, further comprising.

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