JP4052013B2 - Caliper for disc brake - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a caliper used for a disc brake, and more particularly to a technique for cooling a caliper that generates heat by braking.
[0002]
[Prior art]
As a disc brake for a vehicle such as an automobile, a structure for cooling a caliper used for the disc brake is disclosed in, for example, JP-A-8-86325. In this document, outside air that flows in the running direction as the automobile travels is taken, the outside air is introduced into a housing space that houses the disk rotor and caliper, and the caliper and disk rotor are cooled by the introduced outside air. It is disclosed.
[0003]
[Problems to be solved by the invention]
However, in the cooling structure of the above-described prior art, the rotation accommodating member that closes the hole of the tire wheel, the stationary accommodating member that accommodates the disc rotor and the caliper together with the rotation accommodating member, and the outside air that flows in the traveling direction is taken into the accommodating space. An air inlet for introducing outside air must be provided. Therefore, it becomes a large-scale configuration, and there is a concern that the degree of freedom in designing the component layout is limited in addition to an increase in weight and manufacturing cost.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a caliper for a disc brake that can effectively cool a caliper with a simple configuration and can improve the degree of freedom in design by suppressing restrictions on the position where the caliper is attached to a vehicle. And
[0005]
[Means for Solving the Problems]
To achieve the above object, the present invention provides a brake disc that rotates together with a vehicle wheel, a leg portion disposed on an inner side and an outer side, and a leg portion on the inner side and the outer side that straddles the outer peripheral portion of the disc. The main body having a bridge portion for coupling the disc is applied to a disc brake caliper supported by the vehicle via an attachment member. The disc brake caliper of the present invention is characterized by the following points. That is, an outside air introduction port that opens in the rotation direction of the wheel and introduces outside air that flows in the rotation direction as the wheel rotates while the vehicle is running into the caliper, and outside air introduced from the outside air introduction port. An outside air discharge port for discharging the outside air to the outside of the caliper, an outside air flow path through which the outside air introduction port and the outside air discharge port communicate and circulate the outside air is disposed on the outer side of the brake caliper, The air flow path is provided with a throttle portion that reduces a partial cross-sectional area thereof.
[0006]
【The invention's effect】
In the caliper for disc brake of the present invention, the outside air introduction port opens in the direction of rotation of the wheel and introduces outside air flowing in the direction of rotation along with the rotation of the wheel while the vehicle is running into the caliper. The outlet discharges the outside air introduced into the caliper. In addition, the outside air flow path communicates the outside air introduction port and the outside air discharge port and circulates the outside air between them, and the cross-sectional area of the outside air flow path is reduced by the constricted portion provided in the flow path. The outside air passing through the air flow path is throttled.
[0007]
By the way, when the vehicle is running, outside air is dragged to the rim of the wheel as the wheel rotates, so that outside air flows in the direction of rotation along with the rotation of the wheel near the outer periphery of the wheel where the caliper is arranged. Flowing. In the research process of the present inventor, when the flow of the outside air inside the tire wheel while the vehicle was running was examined for the one having a ventilated type disk rotor, there was outside air flowing in the rotation direction of the wheel and the outside air was It was confirmed that it was also flowing on the caliper surface of the disc brake.
[0008]
That is, when the wheel rotates as the vehicle travels, outside air around the wheel is sucked from the vicinity of the center of the disk rotor and discharged from the outer periphery of the rotor. Further, the discharged outside air flows in the rotation direction as the disk rotor and the wheel rotate, passes through the caliper surface (leg surface) and the back surface (bridge surface), and from the rear lower part of the wheel to the outside of the wheel. Discharged. Further, the amount of outside air to be discharged is larger in the outer peripheral side opening portion where the caliper is disposed than in the dish surface of the wheel. On the other hand, when the dish surface of the wheel is blocked, the flow rate of the wind in the wheel hardly changes, but the flow velocity decreases, but by providing a hole near the outer periphery of the lid, the flow velocity does not block the dish surface. It was confirmed that it was almost the same as the case.
[0009]
Therefore, as described above, there is outside air flowing in the direction of wheel rotation along the surface of the disc brake caliper as the wheel rotates while the vehicle is running. According to the disc brake caliper of the present invention, the outside air inlet is The outside air that flows in the direction of rotation of the wheels when the vehicle travels is introduced into the caliper. Then, the outside air introduced into the caliper is throttled by the throttle portion of the outside air flow path, and the flow velocity is increased, and the outside air is discharged from the outside air discharge port. Thereby, the temperature in a caliper can be reduced effectively. In addition, since the caliper has an outside air inlet, an outside air outlet, and an outside air flow path, it is possible to suppress an increase in weight and cost without being a large-scale configuration, and the degree of freedom in designing the component layout is limited. Can be suppressed. Furthermore, since the position of the caliper attached to the vehicle body is not limited in relation to peripheral components such as a suspension, the degree of freedom in design can be further improved.
[0010]
The disc brake caliper of the present invention may include the outside air introduction port, the outside air discharge port, the outside air flow path, and the throttle portion by the main body and a cover member attached to the main body. good.
[0011]
According to such a configuration, by attaching the cover member to the main body, the outside air introduction port, the outside air discharge port, and the outside air flow path can be provided in the disc brake caliper. Therefore, the caliper main body can be diverted from a commonly used one, and the above-mentioned operations and effects can be achieved with a small modification by a simple process such as adding a bolt hole for attaching a cover member to the main body. A brake caliper can be realized. Therefore, the base body can be shared, and an increase in cost due to an increase in the types of caliper bodies can be prevented. In addition, it is also possible to easily attach a cover member having a figure or character formed on the surface to the main body, thereby improving the aesthetic appearance around the wheel. Furthermore, by manufacturing the cover member with a heat-resistant resin material, the degree of freedom in forming the cover member can be further improved.
[0012]
In the brake disk caliper of the present invention, the outside air introduction port, the outside air discharge port, the outside air flow path, and the throttle portion may be configured by the main body. If it does in this way, it can be set as a simpler structure, without using a cover member.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a disc brake caliper shown in a state where a cover member is attached, which is a first embodiment of the disc brake caliper of the present invention. FIG. 2 is a side view showing the disc brake caliper of FIG. In the figure, reference numeral 1 is a caliper for a disc brake of an automobile, 2 is a main body, 3 is a cover member, 4 is an outside air inlet, 5 is an outside air outlet, 6 is an outside air flow path, 7 is a connecting portion, and 8 is an arm. , 9 is an inner leg, 10 is an outer leg, 11 is a bridge, 12 is a mounting member (torque member), 13 is an inner brake pad, 14 is an outer brake pad, 15, 16, and 17 are It is a nail part.
[0014]
The disc brake caliper 1 of the present embodiment shown in FIGS. 1 and 2 is a floating caliper, and a main body (cylinder body) 2 having an inner side leg portion 9, an outer side leg portion 10, and a bridge portion 11 is provided. It is supported by a non-rotating member of an automobile (not shown) via the mounting member 12 and is arranged on the outer peripheral portion inside the tire wheel. Here, the inner leg portion 9 is disposed on the inner side of a brake disc D (shown in phantom lines in FIG. 1) that rotates together with the wheels of the automobile. The outer leg 10 is disposed on the outer side of the disk D. And the bridge part 11 couple | bonds the inner side leg part 9 and the outer side leg part 10 across the outer peripheral part of the disk D. As shown in FIG.
[0015]
The mounting member 12 is a member formed integrally with the pair of arm portions 8 and 8 and the connecting portion 7, and the pair of arm portions 8 and 8 are separated in the circumferential direction of the disk D and the disk. It is formed so as to straddle the outer peripheral portion of D, and the connecting portion 7 connects the end portions of the respective arm portions 8, and this connecting portion 7 is attached to a non-rotating portion of the automobile by a fastening member such as a bolt. Then, the caliper 1 is supported on the mounting member 12 using a slide pin or the like so that the caliper 1 can slide in the axial direction of the disk D.
[0016]
Furthermore, a cylinder (not shown) having a piston that can be advanced and retracted with respect to the inner brake pad 13 is provided inside the inner leg 9. On the other hand, the outer side leg portion 10 is provided with three claw portions 15, 16 and 17 whose base portions are integrally formed with the bridge portion 11 at a predetermined interval in the rotation direction of the disk D. Further, the inner brake pad 13 and the outer brake pad 14 of the disk D are provided with fan-shaped back metal 13a, 14a extending in the rotation direction of the disk D, and brake operation is performed on the surface side of the back metal 13a, 14a. Sometimes linings 13b, 14b are provided in frictional contact with the disk D.
[0017]
According to the caliper having the above configuration, when the piston advances the piston to the inner brake pad 13 by supplying brake fluid pressure from the outside, the disk D is pressed from the inner side by the inner brake pad 13. On the other hand, the inner side leg portion 9 receives a force in the inner direction due to the reaction force from the disk D, and the force is transmitted to the outer side leg portion 10 via the bridge portion 11, and the three claw portions 15, 16, 17 are transmitted. Thus, the outer brake pad 14 is pressed, and the disk D is also pressed from the outer brake pad 14 by the outer brake pad 14. In this way, the disc brake can be braked.
[0018]
Further, the disc brake caliper 1 of the present embodiment includes an outside air introduction port 4, an outside air discharge port 5, and an outside air flow path 6. The outside air introduction port 4 is provided so as to open in the rotation direction of the wheel while the automobile is running, and for introducing outside air (air outside the vehicle) flowing in the rotation direction into the caliper 1 as the wheel rotates. The outside air discharge port 5 serves to discharge the outside air introduced from the outside air introduction port 4 to the outside of the caliper 1. Further, the outside air flow path 6 serves to circulate outside air through the outside air introduction port 4 and the outside air discharge port 5. In the present embodiment, the main body 2 of the caliper 1 and the main body 2 thereof are provided in order to provide the outside air introduction port 4, the outside air discharge port 5, the outside air channel 6, and the throttle portion 6 a of the outside air channel. The cover member 3 to be attached to is configured as follows.
[0019]
That is, in the present embodiment, the cover member 3 is attached to the outer side leg portion 10 of the main body 2 of the caliper 1. Here, the cover member 3 is formed of a heat-resistant resin material, and its shape is substantially rectangular so as to match the shape of the outer leg 10 as shown in FIGS. A character, a figure, etc. are modeled (refer FIG. 1). On the other hand, a venturi groove 3a (see FIG. 3) having a reduced cross-sectional area at the center is formed on the back surface of the caliper 1 facing the main body 2. In addition, as shown in FIG. 4, the main body 2 of the caliper 1 is also formed with a venturi groove 10 a having a small cross-sectional area near the center on the surface of the outer side leg portion 10.
[0020]
Further, as shown in FIGS. 3 and 4, the outer leg 10 and the cover member 3 are provided with mounting holes (bolt holes) 3 b and 10 b for mounting the cover member 3 to the main body 2. And it attaches to the main body 2 of the caliper 1 so that the opening of the both ends of the venturi groove | channel 3a of the cover member 3 may face the rotation direction of the disk D with fastening members, such as a volt | bolt.
[0021]
In this way, the venturi groove 10 a provided in the main body 2 and the venturi groove 3 a provided in the cover member 3, the outside air introduction port 4, the outside air discharge port 5, the outside air channel 6, and the outside air channel thereof. In the vicinity of the central portion 6 in the circumferential direction, a throttle portion 6a that partially reduces the cross-sectional area is defined, and the caliper 1 of the present embodiment shown in FIG.
[0022]
In the present embodiment, the configuration of the caliper 1 other than the cover member 3 may be a conventional general configuration. Further, the caliper 1 may be supported by the vehicle body so as to be positioned near the outer periphery inside the wheel. Examples of the arrangement of the caliper 1 are the upper side, the front side, or the rear side of the center axis of the disk D. is there. Further, the venturi groove 10a provided in the main body 2 is not always necessary.
[0023]
FIG. 5 shows a case where the car travels at a constant speed from a state where the caliper generates heat due to braking (a state where the surface temperature of the brake pad reaches a constant temperature) for the disc brake having the caliper 1 of the present embodiment attached to the car. Compared with the temperature change in the caliper with a ventilation duct constructed for comparison with the normal caliper generally used in the past and the construction of the present embodiment FIG. The normal caliper here uses a caliper having a conventional general configuration, although not shown. Further, the caliper with the ventilation duct is configured such that the caliper 1 according to the present embodiment is configured such that the outside air flow path has a constant cross-sectional area without providing the outside air flow path (duct).
[0024]
Referring to FIG. 5 in detail, the a portion (see FIGS. 1 and 2) of the claw portion 16 and the outer side when traveling at a predetermined constant speed after the brake pad temperature reaches a predetermined temperature due to braking. The result of having measured the temperature with b part (refer FIG.1 and FIG.2) of the back metal 14b provided in the brake pad 14, and the change of the surface temperature of a brake pad according to the kind of caliper is shown. In FIG. 5, the caliper 1 of the present embodiment is indicated by a solid line, the normal caliper is indicated by a one-dot chain line, and the caliper with a ventilation duct is indicated by a two-dot chain line.
[0025]
According to this, in the caliper 1 of the present embodiment, the temperature of the a part (toe) and the b part (back metal) during traveling is lower than both the normal caliper and the caliper with the ventilation duct. I understand. In addition, although the value of the caliper with the ventilation duct is higher than that of the normal caliper, it is estimated that this is due to a reverse action cause such as measurement error or heat accumulated in the caliper.
[0026]
Therefore, in the caliper 1 of the present embodiment, the effect of the throttle portion 6a of the outside air flow path 6, that is, the outside air passing through the caliper 1 while the vehicle is running is flowed by the throttle portion 6a provided in the outside air flow path 6. It is recognized that the caliper 1 is effectively cooled.
[0027]
As described above, as the wheel rotates while the automobile is running, the surface of the disk brake caliper exists on the surface of the disk brake caliper as indicated by the arrow A in FIG. According to the caliper 1 for brakes, the outside air introduction port 4 introduces outside air that flows in the rotation direction into the caliper 1 in accordance with the rotation of the wheel during traveling of the automobile. Then, the outside air introduced into the caliper 1 is throttled by the throttle portion 6 a of the outside air flow path 6, and the flow velocity is increased to be discharged from the outside air discharge port 5. Thereby, the temperature in the caliper 1 can be reduced effectively.
[0028]
Moreover, since the caliper 1 includes the outside air introduction port 4, the outside air discharge port 5, and the outside air flow path 6, it is possible to suppress an increase in weight and cost without being a large-scale configuration, and to have a degree of freedom in designing a component layout. It is possible to suppress the restriction. Furthermore, since the position where the caliper 1 is attached to the vehicle body is not restricted, the degree of freedom in design can be further improved.
[0029]
Further, in the disc brake caliper 1 of the present embodiment, the cover for attaching the outside air introduction port 4, the outside air discharge port 5, the outside air flow path 6, and the throttle portion 6 a to the body 2 and the body 2. The member 3 is constituted.
[0030]
According to such a configuration, by attaching the cover member 3 to the main body 2, the outside air inlet 4, the outside air outlet 5, the outside air passage 6, and the throttle portion 6 a of the outside air passage are provided in the disc brake caliper 1. Can be provided. Therefore, the main body 2 of the caliper 1 can be diverted from a commonly used one, and the above operations and effects can be achieved with a small modification by a simple process such as adding a bolt hole for attaching the cover member 3 to the main body 2. It is possible to realize a caliper for a disc brake that can be used.
[0031]
Therefore, the main body 2 as a base can be shared, and an increase in cost due to an increase in the types of the main bodies 2 of the caliper 1 can be prevented. In this embodiment, since the cover member 3 is made of a heat-resistant resin material, as shown in FIG. 1, a figure, a character, or the like is formed on the surface of the cover member 3 and attached to the caliper 1. This can be done easily. Thereby, while improving the aesthetic appearance of the periphery of a wheel, the modeling freedom degree of the cover member 3 can be improved more by manufacture with a heat resistant resin material.
[0032]
6 and 7 are a front view showing a modified example of the disc brake caliper of the present embodiment and a side view showing a part thereof in cross section. In this modification, the outer leg 10 of the main body 2 of the caliper 1 is configured without providing a venturi groove. On the other hand, instead of providing a venturi groove on the back surface of the cover member 3, a venturi-shaped recess is formed by projecting from the front surface. Then, the cover member 3 is attached to the outer side leg portion 10 of the main body 2 so that the openings at both ends of the groove are directed in the rotation direction of the disk D. As a result, the caliper 1 is provided with the outside air introduction port 4, the outside air discharge port 5, and the outside air flow path 6, and a throttle portion 6 a is formed in the outside air flow path 6.
[0033]
Furthermore, in the present embodiment, the outside air flow path 6 provided in the cover member 3 is configured so that its center line is on a straight line parallel to the width direction of the caliper 1. For example, the outside air flow path may be configured such that the center line of the outside air flow path is on an arc centered on the rotation center of the disk D.
[0034]
In the brake disk caliper 1 of the present embodiment, the outside air inlet 4, the outside air outlet 5, the outside air flow path 6, and the throttle portion 6a are configured by the main body 2 and the cover member 3. However, without using the cover member 3, the outside air inlet 4, the outside air outlet 5, the outside air flow path 6, and the throttle portion 6 a may be integrated with the main body 2 alone. With this configuration, the brake disk caliper can be configured more simply without using a cover member.
[0035]
FIG. 8 is a front view of the disc brake caliper shown in a state where a cover member is attached, which is a second embodiment of the disc brake caliper of the present invention. FIG. 9 is a side view showing the disc brake caliper of FIG. In the caliper 21 in the present embodiment, a main body 22 having the same configuration as that of the main body 2 in the disc brake caliper 1 of the first embodiment is supported by a non-rotating member of an automobile (not shown) via an attachment member 23. The In the figure, 24 is a bridge portion, 25 is a cover member, 26 is an outside air introduction port, 27 is an outside air discharge port, 28 is an outside air flow path, and 28a is a throttle portion.
[0036]
The disc brake caliper 21 here has a structure in which a cover member 25 is attached to the back surface of the bridge portion 24 of the main body 22. The cover member 25 according to the present embodiment curves the back surface facing the bridge portion 24 so as to cover the bridge portion 24, and has a venturi-shaped groove 25 a extending in the circumferential direction of the disk D on the back surface. To form. The groove 25a here is formed so that the cross-sectional area near the center of the groove 25a is the smallest in the thickness direction of the caliper 21 (the direction in which the caliper 21 straddles the disk D). Further, a mounting hole (bolt hole) (not shown) for attaching the cover member 25 to the main body 22 is formed in the bridge portion 24 and the cover member 25 of the main body 22, and the cover member 25 is connected to both ends of the groove with a fastening member such as a bolt. Are attached to the bridge portion 24 of the main body 22 so that the opening portion of the main body 22 faces the rotation direction of the disk D. The groove 25a may be formed so that the cross-sectional area near the center of the groove 25a is the smallest in the thickness direction of the cover member 25.
[0037]
By the way, as described above, according to the experiment of the present inventor, outside air that flows in the rotation direction of the wheel (disc D) exists in the tire wheel, and the outside air also flows on the caliper surface of the disc brake. However, it was confirmed that the outside air also flows in the rotational direction of the wheel as indicated by the arrow B in FIG. 8 on the back surface of the bridge portion constituting the main body of the caliper. Accordingly, in the disc brake caliper 21 of the present embodiment, the outside air inlet 26 of the cover member 25 attached to the caliper 21 opens in the rotation direction of the wheel (not shown), and the wheel of the running vehicle is running. The outside air flowing in the rotation direction with the rotation is introduced into the caliper 21, and the outside air discharge port 27 discharges the outside air introduced into the caliper 21. Further, the outside air channel 28 communicates the outside air introduction port 26 and the outside air discharge port 27 and circulates the outside air between them, and the cross-sectional area of the outside air channel is small by the throttle portion 28a provided in the channel. Thus, the outside air passing through the outside air flow path is throttled.
[0038]
Therefore, according to the disc brake caliper 21 of the present embodiment configured as described above, the same operations and effects as those of the first embodiment can be obtained.
[0039]
In the third embodiment of the present invention, although not shown, a cover member having the same configuration as the cover member 3 of the first embodiment shown in FIGS. A disc member is attached to the outer side leg portion and attached to the back surface of the bridge portion of the caliper main body with a cover member having the same structure as the cover member 24 of the second embodiment shown in FIGS. Configure calipers for use. The caliper main body has the same configuration as that of the first and second embodiments.
[0040]
In the caliper for disc brake according to the present embodiment, the outer side leg portion and the bridge portion of the caliper main body, the outside air introduction port, the outside air discharge port, the outside air passage, and the restriction of the outside air passage. Part. Therefore, according to the disc brake caliper of the present embodiment having such a configuration, it is possible to efficiently take in the outside air flowing in the rotation direction as the wheel rotates while the automobile is running, and efficiently cool the caliper from two directions. Therefore, the caliper cooling performance can be further improved.
[0041]
In this embodiment, the cover member attached to the outer side leg portion and the cover member attached to the bridge portion are configured as separate bodies. However, the cover member integrally formed with these cover members is attached to the main body. It can also be. Moreover, you may manufacture a cover member with a heat resistant resin material similarly to 1st Embodiment.
[0042]
As mentioned above, although demonstrated based on the example of illustration, the caliper for disc brakes of this invention is not limited to the structure shown in the said embodiment. For example, in the above-described embodiment, the technical idea of the present invention is applied to a floating caliper. However, the type of the caliper is not limited thereto, and can be applied to, for example, an opposed piston caliper.
[0043]
In the first embodiment, the outside air inlet 4, the outside air outlet 5, the outside air flow path 6, and the throttle portion 6 a are defined by the main body 2 and the cover member 3 attached to the main body 2. The configuration to be performed is not limited to the above configuration, and other configurations may be used. Therefore, for example, a circumferential groove can be formed in the disk D in the caliper body, and the groove can be covered with a plate-shaped cover member. Further, the size and shape of the cover member attached to the caliper are not limited to the configuration of the above-described embodiment, and can be changed as appropriate. Further, the first embodiment and the second embodiment may be combined at the same time, or the caliper corner that is the position between the first embodiment and the second embodiment. It may be configured anywhere, as long as it can take in the outside air flowing in the direction of rotation of the caliper body surface as the traveling wheel rotates.
[Brief description of the drawings]
FIG. 1 is a front view of a disc brake caliper with a cover member attached, which is a first embodiment of the disc brake caliper of the present invention.
FIG. 2 is a side view showing the disc brake caliper of FIG. 1 in a partial cross section.
FIG. 3 is a plan view showing a cover member constituting the disc brake caliper of the first embodiment as viewed from the back side.
FIG. 4 is a plan view showing a main body constituting the disc brake caliper of the first embodiment as viewed from the front side.
FIG. 5 is an explanatory view showing the effect of the disc brake caliper of the first embodiment in comparison with the disc brake caliper of another configuration.
FIG. 6 is a front view of a disc brake caliper that is a modified example of the disc brake caliper according to the first embodiment and is shown with a cover member attached.
7 is a side view showing the disc brake caliper of FIG. 6 in a partial cross section. FIG.
FIG. 8 is a front view of the disc brake caliper shown in a state where a cover member is attached, which is a second embodiment of the disc brake caliper of the present invention.
FIG. 9 is a side view showing the disc brake caliper of FIG. 8 in a partial cross section.
[Explanation of symbols]
1,21 Car disc brake caliper 2,22 Caliper body 3,25 Cover member 4,26 Outside air inlet 5,27 Outside air outlet 6,28 Outside air flow path 7 Connection portion 8 Arm portion 9 Inner side leg portion 10 Outer side leg parts 11, 24 Bridge part 12, 23 Mounting member 13 Inner side brake pad 14 Outer side brake pad 15, 16, 17 Claw part D Brake disc

Claims (3)

A main body having a leg portion disposed on an inner side and an outer side of a brake disc that rotates together with a vehicle wheel, and a bridge portion that couples the inner side and the outer side leg portions across the outer peripheral portion of the disc. However, in the disc brake caliper supported by the vehicle via the mounting member,
An outside air inlet that opens in the direction of rotation of the wheel and introduces outside air that flows in the direction of rotation with rotation of the wheel while the vehicle is running into the caliper;
An outside air discharge port for discharging outside air introduced from the outside air introduction port to the outside of the caliper;
An outside air flow path that communicates the outside air introduction port and the outside air discharge port and distributes the outside air is disposed on the outer side of the brake caliper,
A disc brake caliper comprising a throttle portion for reducing a partial cross-sectional area of the outside air flow path. The disk according to claim 1, wherein the outside air inlet, the outside air outlet, the outside air flow path, and the throttle portion are defined by the main body and a cover member attached to the main body. Brake caliper. 2. The disc brake caliper according to claim 1, wherein the outside air introduction port, the outside air discharge port, the outside air flow path, and the throttle portion are configured by the main body.

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