TWI648481B - Brake caliper for bicycle - Google Patents

Abstract

It is an object of the present invention to limit the movement of a screw member for securing a brake caliper to a bicycle frame. A brake caliper (10) includes a body (14), a first screw hole (16), a first screw member (20), a communication hole (24), and a restricting member (26). The body (14) can be fixed to a bicycle frame (4). The first screw hole (16) is opened in the body (14) for fixing the body (14) directly or indirectly to the frame (4). The first screw member (20) is inserted into the first screw hole (16), and the body (14) is directly or indirectly fixed to the frame (4). The communication hole (24) is opened in the body (14) so as to communicate with the first screw hole (26). The restricting member (26) is inserted into the communication hole (24) to restrict the action of the first screw member (20).

Description

Bicycle caliper

The present invention relates to brake calipers, and more particularly to brake calipers that are used as bicycle brake devices.

In the bicycle brake system of the bicycle, the brake caliper is fixed to the bicycle frame (for example, the front fork or the frame body), and there is a known type of bicycle frame having a fixing hole for fixing the brake caliper (see, for example, the United States). Patent Application Publication No. US2001/0025747A1). The fixing holes are two holes that are opened in a known bicycle frame (for example, a front fork) so as to be spaced apart at an interval in the longitudinal direction.

When the brake caliper has a fixed portion and the spacing between the fixed portions is different from the spacing between the fixing holes of the opening in the bicycle frame, an adapter is required to fix the brake caliper to the bicycle frame. When the adapter is used, the brake caliper fixes the adapter with two screw members, and then the adapter is fixed to the bicycle frame with two other screw members. In contrast, when the brake caliper has a fixed portion and the interval between the fixed portions is the same as the interval between the fixing holes of the opening in the bicycle frame, the brake caliper is fixed by two screw members. To the bike rack.

Therefore, the brake caliper is fixed to the bicycle frame by the screw member through the adapter, and the brake caliper is directly fixed to the bicycle frame by the screw members. The structure needs to limit the movement of the screw members.

It is an object of the present invention to limit the movement of a screw member for securing a brake caliper to a bicycle frame.

A bicycle brake caliper according to the present invention includes a body, a first screw hole, and a communication hole. The body can be secured to the bicycle frame. The first screw hole is opened in the body for fixing the body directly or indirectly to the frame. The communication hole is opened in the body so as to communicate with the first screw hole.

In the brake caliper of a bicycle, the communication hole is opened in the body so as to communicate with the first screw hole of the opening in the body. The operation of the screw member inserted into the first screw hole can be restricted by using the communication hole, for example, by inserting a member that can restrict the operation of the screw member into the communication hole, and restricting the operation of the screw member.

The brake caliper of a bicycle may further include a first screw member and a restricting member, the first screw member being insertable into the first screw hole to directly or indirectly fix the body to the frame. The restricting member is insertable into the communication hole to restrict the action of the first screw member. In this configuration, by inserting the restricting member into the communication hole, the action of the first screw member that has been inserted into the first screw hole can be restricted. In this way, the action of the first screw member for fixing the brake caliper to the frame can be easily restricted.

The restricting member may have elasticity applied to a radial direction of the communication hole. Within the structure, the restricting member can be held in the communication hole using an elastic force.

The communication hole can be bored in the body so as to pass out therefrom. In the structure, when the restricting member is placed in the communication hole and protrudes therefrom, the protruding portion or a portion of the restricting structure The member can be prevented from easily coming out of the communication hole.

The first screw member may have a recess configured to match the communication hole when the body is fixed to the frame. In this configuration, the action of the first screw member can be easily restricted by placing the restricting member into the recess.

The body can have an opposing surface opposite the frame. Further, the first screw hole may have an opening that is opened in the opposite surface. In this configuration, even when the first screw member has been inserted into the first screw hole from the side of the frame, the action of the first screw member can be restricted.

The brake caliper of a bicycle may further comprise at least one piston fixed to the vehicle body so as to be movable in a predetermined axial direction. Further, the first screw hole may be opened in a direction parallel to a plane, wherein the plane is perpendicular to the predetermined axis direction. Within the structure, the brake caliper can be easily secured to the frame.

The communication hole may be opened in a direction parallel to the predetermined axial direction. In this configuration, since the communication hole is bored in a direction parallel to the predetermined axial direction of the piston, the axial action of a screw member to be inserted into the first screw hole is subjected to the restricting member inserted into the communication hole. The limit.

The brake caliper of a bicycle may further include a second screw hole and a second screw member, the second screw hole may be opened in a direction parallel to the first screw hole, and the second screw member may be inserted into the second screw member A screw hole that secures the body directly or indirectly to the frame. Within this configuration, the brake caliper can be secured to the frame with two screw members. Therefore, it is possible to prevent the brake caliper from moving around one or both of the screw shafts.

The brake caliper of a bicycle may further comprise an adapter and a third screw a member, a fixing member and a restricting mechanism, the adapter being connectable to the body by the first screw member and the second screw member. The third screw member can be used to secure the adapter to the frame. The fixing member can be fixed by the third screw member. The restriction mechanism can limit relative movement between the adapter and the stationary member. In this configuration, the relative movement between the adapter and the fixing member is limited by the restriction mechanism, and therefore, the relative movement between the adapter and the third screw member that fixes the fixing member can be restricted.

The restriction mechanism may include a recessed portion and a raised portion, the recessed portion being provided for one of the adapter and the fixing member, the raised portion being provided for the adapter and the other of the fixing member By. In this configuration, the relative movement between the adapter and the fixing member can be restricted by using the recessed portion and the protruding portion to engage with such a simple structure.

The brake caliper of a bicycle may further include a fourth screw member for fixing the adapter to the frame. Within the structure, the adapter can be secured to the frame with the two screw members. Therefore, the adapter can be prevented from moving around one or both of the screw shafts.

A bicycle brake caliper according to another aspect of the present invention includes a body, an adapter, a screw member, a fixing member, and a restricting member. The adapter is coupled to the body to secure the body to the frame of the bicycle. The screw member can be used to secure the adapter to the frame. The fixing member is fixed by the screw member. The restriction mechanism limits relative movement between the adapter and the stationary member. Further, the restricting mechanism includes a concave portion and a convex portion, and the concave portion is provided for one of the adapter and the fixing member, and the convex portion is provided for the adapter and the fixing member One.

In the brake caliper, the relative movement between the adapter and the fixing member is limited by the restriction mechanism, and therefore, the adapter and the screw member fixing the fixing member can be restricted Relative movement between.

The recessed portion can be opened in the adapter to become a consistent perforation. Within the structure, the recessed portion can be easily formed.

The adapter is detachably coupled to the body. In this configuration, a brake caliper is affixed to the frame through the adapter, the frame having a hole for opening at a different spacing than the holes in the brake caliper.

In general, according to the present invention, the movement of a screw member for securing a brake caliper to a bicycle frame can be limited.

4‧‧‧Bicycle rack

4a‧‧‧ Front fork

4b‧‧‧ frame body

4c‧‧‧ first hole

4d‧‧‧second hole

4e‧‧‧Chain support

4f‧‧‧ third hole

4g‧‧‧fourth hole

6‧‧‧disc rotor

6a‧‧‧ brake surface

10‧‧‧ brake calipers

12‧‧‧Piston

14‧‧‧Ontology

14a‧‧‧Part 1

14b‧‧‧Part II

14c‧‧‧slit

14d‧‧‧relative surface

16‧‧‧First screw hole

16a‧‧‧ openings

18‧‧‧Second screw hole

18a‧‧‧ openings

20‧‧‧First screw member

20a‧‧‧ Groove

22‧‧‧Second screw member

22a‧‧‧ Groove

24‧‧‧Connected holes

26‧‧‧Restricted components

26a‧‧‧ Straight part

26b‧‧‧Spring section

26c‧‧‧ knob section

28‧‧‧Adapter

28a‧‧‧first through hole

28b‧‧‧second through hole

28c‧‧‧ third through hole

28d‧‧‧fourth through hole

30‧‧‧ Third screw member

30a‧‧‧ head

30b‧‧‧Tool lock section

30c‧‧‧The first wide side part

30d‧‧‧Fixed part

30e‧‧‧second wide side section

30f‧‧ ‧ protrusions

32‧‧‧4th screw member

32a‧‧‧ head

34‧‧‧Fixed components

34a‧‧‧Maintenance

34b‧‧‧Extension

34c‧‧‧Second protrusion

34d‧‧‧slit

36‧‧‧Restricted institutions

38‧‧‧ recessed part

40‧‧‧ convex part

106‧‧‧disc rotor

120‧‧‧First screw component

120a‧‧‧ Groove

122‧‧‧Second screw member

122a‧‧‧ Groove

AD‧‧‧ axis direction

Referring now to the drawings, these drawings form a part of the present invention. FIG. 1 is a bicycle brake caliper according to an exemplary embodiment of the present invention, and shows a side view of the bicycle caliper fixed to the bicycle front fork; The figure shows the rear view of the brake caliper in the case where the brake caliper has been fixed to the bicycle front fork; the third figure is an enlarged side view of the fixed portion of the brake caliper shown in the first figure; the fourth figure shows the brake caliper not shown. A perspective view of the fixed portion of the brake caliper under the body; a fifth side view of a restricting member; a sixth plan view of a fixed member; and a seventh view of a bicycle brake caliper according to the present invention, and A side view in the case where the brake caliper has been fixed to the bicycle frame; and an eighth view is an enlarged side view of the fixed portion of the brake caliper shown in the seventh figure.

As shown in the first and second figures, a bicycle caliper 10 (hereinafter simply referred to as "a brake caliper 10") of a bicycle according to an exemplary embodiment of the present invention can be fixed to a bicycle frame 4. The first and second figures show the case where the brake caliper 10 has been fixed to the front fork 4a of the bicycle frame 4. The brake caliper 10 is used to brake a disc rotor 6 fixed to a front wheel (not shown) in response to an input to an operating device (not shown).

Please note that in the following explanations, the terms "before", "after", "right", "left", "up" and "down" are used, and further, the relative terms mean "before" and "after". , "Right", "Left", "Up" and "Down" are the riders sitting on the seat (not shown), facing the handle (not shown).

The bicycle frame 4 includes a front fork 4a shown in the first figure and a frame body 4b shown in the seventh figure. As shown in the third figure, the front fork 4a has a first hole 4c and a second hole 4d. The first hole 4c is for fixing the brake caliper 10 to the front fork 4a, and the second hole 4d is closer to the tip end of the front fork 4a than the first hole 4c. On the other hand, as shown in the eighth figure, the frame body 4b has a chain support 4e on its rear portion. The chain support 4e has a third hole 4f and a fourth hole 4g. The fourth hole 4g is farther from the tip end of the chain support 4e than the third hole 4f. The first hole 4c and the second hole 4d are screw holes, and the third hole 4f and the fourth hole 4g are through holes penetrating through the chain support 4e. The spacing between the first hole 4c and the second hole 4d is greater than the spacing between the first screw hole 16 (to be described) of the brake caliper 10 and the second screw hole 18 (to be described). The spacing between the third hole 4f and the fourth hole 4g is equal to the spacing between the first screw hole 16 and the second screw hole 18.

The brake caliper 10 is arranged to clamp the disc rotor 6 between the brake pads (not shown) to brake the wheels of the bicycle. The brake shoes are arranged to be actuated by at least one piston 12 fixed to the brake caliper 10. In the exemplary embodiment, as shown in the second figure, a pair of pistons 12 Fixed to the brake caliper 10.

As shown in the third figure, the brake caliper 10 includes the pair of pistons 12, a body 14, a first screw hole 16, a second screw hole 18, a first screw member 20, a second screw member 22, and a communication hole. 24 and a restriction member 26. The brake caliper 10 further includes an adapter 28, a third screw member 30, a fourth screw member 32, a fixing member 34, and a restricting mechanism 36.

As shown in the second figure, each pair of pistons 12 is disposed relative to the disk rotor 6 when the body 14 has been fixed to the front fork 4a of the frame 4. Each of the pistons 12 is fixed to the body 14 so as to be movable in a predetermined axial direction AD. In the exemplary embodiment, the predetermined axial direction AD is arranged to be substantially perpendicular to the braking surface 6a of the rotor 6. As such, the braking surface 6a is an exemplary plane that is perpendicular to the axial direction AD.

As shown in the second figure, the body 14 is composed of a first portion 14a and a second portion 14b. The first portion 14a can be fixed to the frame 4 and the second portion 14b is fixed to the first portion 14a. The piston 12 is fixed to the first portion 14a and the second portion 14b, respectively. A portion of a slit 14c is formed between the first portion 14a and the second portion 14b, and the disk rotor 6 can be placed therein. As shown in the third figure, the first portion 14a of the body 14 has an opposing surface 14d opposite the frame 4.

The first screw hole 16 is bored in the first portion 14a of the body 14 to secure the body 14 directly or indirectly to the frame 4. The first screw hole 16 has an opening 16a that is bored in the opposite surface 14d. The first screw hole 16 may be opened in a direction parallel to a plane (for example, the brake surface 6a) that is disposed perpendicular to the axial direction AD. In the exemplary embodiment of the present invention, the first screw hole 16 is in the form of a single opening and is not apertured on the opposite side of the opening 16a.

The second screw hole 18 can be opened in a direction parallel to the first screw hole 16, and the second screw hole 18 is transmitted through the first screw hole 16 on the opposite side of the tip end of the front fork 4a. The second screw hole 18 is opened Within the first portion 14a of the body 14 to secure the body 14 directly or indirectly to the frame 4. The second screw hole 18 has an opening 18a that is bored in the opposite surface 14d. In the exemplary embodiment of the present invention, the second screw hole 18 is in the form of a single opening and is not apertured on the opposite side of the opening 18a.

For example, the first screw member 20 is a hexagonal countersunk bolt. As shown in the third figure, the first screw member 20 has been inserted into the first screw hole 16 and jammed to fix the body 14 directly or indirectly to the frame 4. The first screw member 20 has a recess 20a that is configured to match the communication hole 24 when the body 14 has been fixed to the frame 4. The groove 20a has a circular recess shape. In the exemplary embodiment, the first screw member 20 is screwed into the first screw hole 16 by the adapter 28 to indirectly fix the body 14 to the frame 4.

For example, the second screw member 22 is a hexagonal countersunk bolt. The second screw member 22 has been inserted into the second screw hole 18 and jammed to fix the body 14 directly or indirectly to the frame 4. In the exemplary embodiment, the second screw member 22 is threaded into the second screw hole 18 by the adapter 28 to indirectly secure the body 14 to the frame 4. Further in the present exemplary embodiment, the second screw member 22 has the same structure as the first screw member 20, that is, has a recess 22a. This structure makes it easy to perform the work of joining the brake caliper 10 to the adapter 28. However, the restricting member 26 is not fixed to the portion of the body 14 to which the screw member 22 is fixed. As such, the second screw member 22 does not need to have the recess 22a. Therefore, a normal non-grooved bolt can be used as the second screw member 22.

The communication hole 24 is bored in the body 14 so as to communicate with the first screw hole 16. The communication hole 24 is opened in a direction from the axial direction AD of the piston 12 (the horizontal direction in the text), and the communication hole 24 is a circular hole, as shown in the second figure, extending parallel to the axial direction AD, so Out of the body 14.

As shown in the enlarged view of the third figure, the restricting member 26 has an elastic force applied to the radial direction of the communication hole 24. When the restricting member 26 is located in the communication hole 24, it is at least partially located at the first Inside the recess 20a of the screw member 20. As shown in the fourth and fifth figures, the restricting member 26 is, for example, a snap pin formed using a bent elastic metal wire having a hairpin-shaped semicircular cross section. The restricting member 26 is parallel to the axial direction AD, and is prevented from slipping out of the communication hole 24 by its own elasticity. The restricting member 26 has a straight portion 26a, a spring portion 26b, and a knob portion 26c. The spring portion 26b is bent in a hairpin shape from one end of the straight portion 26a. The knob portion 26c is bent from the other end of the straight portion 26a and is used for the fixing/separating operation. The spring portion 26b is curved in a wave shape such that a portion leaves the straight portion 26a. The length of the knob portion 26c is larger than the diameter of the communication hole 24. The spring portion 26b is fitted with the straight portion 26a to elastically press the inner peripheral surface of the communication hole 24 in the radial direction. This structure can limit the action of the restricting member 26 with respect to the communication hole 24. Further, the restricting member 26 is located within the recess 20a of the first screw member 20. Therefore, even if the first screw member 20 has been relaxed, the groove 20a comes into contact with the restricting member 26. Due to this contact, the action of the first screw member 20 is restricted relative to the body 14.

As shown in the third and fourth figures, the adapter 28 is a plate member that extends along the front fork 4a of the frame 4. The adapter 28 is detachably secured to the body 14. The adapter 28 can be detachably coupled to the body 14 with the first screw member 20 and the second screw member 22. The adapter 28 is designed for the spacing between the first and second screw holes 16 and 18 opened in the body 14, which is different from the spacing between the first and second holes 4c and 4d in the front fork 4a. Happening. The adapter 28 has a first through hole 28a, a second through hole 28b, a third through hole 28c, and a fourth through hole 28d. The first through hole 28a matches the first screw hole 16 of the body 14, the second through hole 28b matches the first screw hole 18 of the body 14, and the third through hole 28c and the first hole 4c of the front fork 4a of the frame 4 Matching, the fourth through hole 28d matches the second hole 4d of the front fork 4a of the frame 4. Each of the first and second through holes 28a and 28b has a conical seat on the opening relative to the frame 4, the conical seat avoiding each of the first and second screws The heads of the members 20 and 22 protrude toward the frame 4. The third through hole 28c and the fourth through hole 28d are elongated holes extending in the width direction (lateral direction) of the adapter 28, so that the position of the brake caliper 10 in the left-right direction can be adjusted.

The third screw member 30 is a member for fixing the adapter 28 to the front fork 4a of the frame 4, and the third screw member 30 has been inserted into the first hole 4c of the front fork 4a of the frame 4 through the third through hole 28c. Inside and stuck. The head portion 30a of the third screw member 30 has a tool lock portion 30b (refer to the fourth figure) recessed from the end surface thereof, a first wide side portion 30c, a fixed portion 30d, and a second wide side portion 30e. The diameter of the fixed portion 30d is smaller than the diameter of the first wide side portion 30c. The fixing portion 30d has a plurality of protrusions 30f on its outer peripheral surface, for example, the first protrusions 30f protrude radially outward in a zigzag shape. The diameter of the second wide side portion 30e is larger than the diameter of the first wide side portion 30c.

The fourth screw member 32 is a member for fixing the adapter 28 to the front fork 4a of the frame 4, and the fourth screw member 32 has passed through the fourth through hole 28d, and is inserted into the second hole 4d of the front fork 4a of the frame 4. Inside and stuck. In the present exemplary embodiment, the fourth screw member 32 has a head portion 32a having the same structure as the head portion 30a of the third screw member 30. This structure makes it easy to perform the work of fixing the adapter 28 to the front fork 4a. However, the fixing member 34 is not fixed to the fourth screw member 32. As such, the fourth screw member 32 does not need to have a fixed portion having the same structure as the fixed portion 30d of the third screw member 30. Therefore, a normal hexagonal countersunk bolt having no fixed portion can be used as the fourth screw member 32.

For example, the fixing member 34 is a member made of a synthetic resin having elasticity. The fixing member 34 is fixed by the third screw member 30 as shown in the third and fourth figures. A fixing member 34 is provided for preventing the third screw member 30 from rotating. As shown in the sixth figure, the fixing member 34 has a maintaining portion 34a and an extending portion 34b. The maintaining portion 34a has a ring shape and is fixed to the fixing portion It is stuck and fixed in 30d. The extended portion 34b extends radially from the maintaining portion 34a. The maintaining portion 34a is located between the first wide side portion 30c and the second wide side portion 30e. The maintaining portion 34a has a plurality of second protrusions 34c on its inner peripheral surface, for example, the second protrusions 34c protrude radially inward in a zigzag shape. The second protrusion 34c of this type is caught by the first protrusion 30f of this type. The maintaining portion 34a has a slit 34d on the base portion of the extending portion 34b, and the slit 34d is used for fixing/separating. After the brake caliper 10 is fixed to the frame 4, a slit 34d is formed for fixing the fixing member 34. To the head 30a of the third screw member 30. The width of the slit 34d is smaller than the diameter of the fixed portion 30d, so that the slit 34d is elastically expanded to fix the fixing member 34 to the fixed portion 30d.

The restriction mechanism 36 limits the relative movement between the adapter 28 and the stationary member 34. In the exemplary embodiment, the restriction mechanism 36 limits rotation of the stationary member 34 relative to the adapter 28. The restricting mechanism 36 is composed of a recessed portion 38 and a raised portion 40. The recessed portion 38 is provided on one of the adapter 28 and the fixing member 34, and the convex portion 40 is provided on the other of the adapter 28 and the fixing member 34. In the exemplary embodiment of the present invention, the adapter 28 is provided with a recessed portion 38, and the fixed member 34 is provided with a raised portion 40. The recessed portion 38 opens into the adapter 28 to form a circular through hole. The raised portion 40 has a shape formed along the recessed portion 38 (columnar in the present exemplary embodiment).

After the adapter 28 that has fixed the body 14 is fixed to the front fork 4a with the third screw member 3o and the fourth screw member 32, the fixing member 34 is fixed to the third screw member 30. When the fixing member 34 is fixed to the third screw member 30, the extended portion 34b is placed toward the recessed portion 38 of the adapter 28, and in this case, the maintaining portion 34a is pressed toward the recessed portion 38. Thus, the maintaining portion 34a is elastically deformed, the slit is thus expanded, and fixed to the fixed portion 30d of the third screw member 30.

According to the brake caliper 10 constructed as described above, the restricting member 26 is fixed to the communication hole 24, This is located in the recess 20a of the first screw member 20. Therefore, even if the first screw member 20 has been relaxed, the movement of the first screw member 20 can be restricted. Further, the straight portion 26a and the spring portion 26b of the restricting member 26 are elastically pressed against the inner peripheral surface of the communication hole 24 in the radial direction. With this configuration, the movement of the restricting member 26 can be restricted. Still further, the fixing member 34 placed on the adapter 28 can prevent the third screw member 30 from rotating, so that the movement of the third screw member 30 can be restricted.

The seventh and eighth figures show the case where the brake caliper 10 has been fixed to the frame body 4b of the frame 4. The brake caliper 10 is used to brake a disc rotor 106 fixed to a rear wheel (not shown) in response to an input to the operating device (not shown). Here, the brake caliper 10 is fixed to the chain support 4e of the frame body 4b. As described above, the distance between the third and fourth holes 4f and 4g which are opened in the chain support 4e is the same as the distance between the first and second screw holes 16 and 18. Thus, the brake caliper 10 is directly fixed to the chain support 4e of the frame 4 by the first screw member 120 and the second screw member 122. The first and second screw members 120 and 122 have the same structure as the first and second screw members 20 and 22 except for the shape of the head and the length of the threaded portion. As such, the first screw member 120 has a recess 120a that is configured to match the communication hole 24 when the body 14 has been fixed to the chain support 4e of the frame 4. The groove 120a has a circular recess shape. The first screw member 120 protrudes through the chain support 4e and is then inserted into the first screw hole 16. In the exemplary embodiment, the first screw member 120 protrudes through the chain support 4e and then into the first screw hole 16 to secure the body 14 directly to the frame 4. The second screw member 122 protrudes through the chain support 4e and then is screwed into the second screw hole 18 to directly fix the body 14 to the frame 4. The second screw member 122 has a recess 122a. This structure described herein makes it easy to perform the work of fixing the body 14 to the chain support 4e.

Other building elements of the brake caliper 10 (e.g., restraining member 26) are identical to the components of the brake caliper 10 used for the front fork. As such, reference numerals assigned to the corresponding construction elements of the front fork will be utilized later, and other construction elements will not be explained. Note that in addition to the communication hole, the restriction member, and the like, the brake caliper for the front fork and for the body body (the chain support) may include different construction elements.

Note, however, that the restraining member 26 is not fixed to the portion of the body 14 to which the screw member 122 is fixed. As such, similar to the second screw member 22, the second screw member 122 does not need to have the recess 122a. Therefore, a normal grooveless bolt can be used as the second screw member 122.

Even when the brake caliper 10 is fixed to the chain support 4e, the restricting member 26 can be located in the recess 120a of the first screw member 120. As such, even if the first screw member 120 has been relaxed, the movement of the first screw member 120 can be restricted.

Other exemplary embodiments

The exemplary embodiments of the present invention have been described above, but the present invention is not limited to the above-described exemplary embodiments, and many changes can be made without departing from the field of the invention. In particular, such exemplary embodiments and modifications described in this specification can be combined as desired.

(a) In the above two exemplary embodiments, each of the first and second screw holes 16 and 18 is in the form of a single opening, and only one end is open. However, at least one of the first and second screw holes 16 and 18 takes the form of a through hole.

(b) In the above two exemplary embodiments, the second screw member is not limited by the restriction member. However, the invention is not limited to this configuration. A communication hole can be opened at this time. The second screw hole is in communication with the second screw hole, and the second screw hole is restricted by a restricting member in the communication hole.

(c) Each of the above exemplary embodiments has explained that the brake caliper 10 is fixed to the structure constituting one of the front fork 4a and the chain support 4e of the frame 4, but the brake caliper of the present invention can be fixed to the vehicle Any position of the rack. For example, the brake caliper of the present invention can be fixed to the seat support of the frame body 4b.

(d) In the former of the above-described exemplary embodiment, the restricting member 36 has a structure in which the recessed portion 38 is provided on the adapter 28, and the convex portion 40 is provided on the fixing member 34. However, the recessed portion 38 may be provided on the fixing member 34, and the convex portion 40 may be provided on the fixing member 28.

(e) In the former of the above exemplary embodiment, the fixing member 34 is not fixed to the fourth screw member 32. However, the fixing member 34 may be fixed to the fourth screw member 32.

Claims (12)

A bicycle brake caliper comprising: a body fixed to a frame of the bicycle; a first screw hole having an opening in the body for directly or indirectly fixing the body to the frame; a through hole in the body, so as to communicate with the first screw hole; a first screw member inserted into the first screw hole, the body is directly or indirectly fixed to the frame; a restricting member, Inserting the communication hole to restrict the action of the first screw member; a second screw hole having an opening in a direction parallel to the first screw hole; and a second screw member inserted into the second screw a hole that fixes the body directly or indirectly to the frame; wherein the first screw member has a recess configured to match the communication hole when the body is fixed to the frame; wherein the groove is circumferentially recessed . The brake caliper of claim 1, wherein the restricting member has an elastic force applied to a radial direction of the communication hole. The brake caliper according to any one of claims 1 to 2, wherein the communication hole is opened in the body and thus passes through the body. A bicycle brake caliper comprising: a body fixed to a frame of the bicycle; a first screw hole having an opening in the body for directly or indirectly fixing the body a communication hole; a communication hole in the body, so as to communicate with the first screw hole; a first screw member inserted into the first screw hole, the body is directly or indirectly fixed to the a frame; and a restricting member inserted into the communication hole to restrict an action of the first screw member; wherein the first screw member has a groove configured to communicate with the body when the body is fixed to the frame The hole is matched; wherein the groove is circumferentially recessed; wherein the body has an opposite surface opposite the frame, and the first screw hole has an opening that is open in the opposite surface. The brake caliper of claim 4, further comprising: at least one piston fixed to the body, so as to be movable in a predetermined axial direction, wherein the first screw hole is opened in a direction parallel to a plane, wherein the The plane is perpendicular to the predetermined axis direction. The brake caliper of claim 5, wherein the communication hole is opened in a direction parallel to the predetermined axis direction. A bicycle brake caliper comprising: a body fixed to a frame of the bicycle; a first screw hole having an opening in the body for directly or indirectly fixing the body to the frame; a through hole in the body, so as to communicate with the first screw hole; a first screw member inserted into the first screw hole to directly or indirectly fix the body To the frame; a restricting member inserted into the communication hole to limit the action of the first screw member; a second screw hole having an opening in a direction parallel to the first screw hole; a second screw a member inserted into the second screw hole to directly or indirectly fix the body to the frame; an adapter coupled to the body by the first screw member and the second screw member; a third screw member, And a fixing member fixed to the frame; and a fixing mechanism that limits relative movement between the adapter and the fixing member. The brake caliper of claim 7, wherein the restriction mechanism comprises a recessed portion for providing one of the adapter and the fixing member, and a raised portion provided for the adapter The other with the fixing member. For example, the brake caliper of claim 8 of the patent scope further includes: a fourth screw member for fixing the adapter to the frame. A bicycle brake caliper comprising: a body; an adapter coupled to the body by a first screw member and a second screw member; and a third screw member for fixing the adapter to the frame a fixing member fixed by the third screw member; and a restricting mechanism that limits relative movement between the adapter and the fixing member, wherein the restricting mechanism includes a recessed portion for providing the transfer And one of the fixed members, and A raised portion that provides the other for the adapter and the stationary member. The brake caliper of claim 10, wherein the recessed portion of the opening is uniformly perforated in the adapter. A brake caliper according to claim 10 or 11, wherein the adapter is detachably coupled to the body.