TW201902768A - Bicycle disc brake caliper - Google Patents

Abstract

A bicycle disc brake caliper includes a main caliper body, a first mounting structure and a piston. The main caliper body includes a first mounting part having a first mounting surface and a second mounting part having a second mounting surface. A first through hole extends from the first mounting surface along a first mounting axis. The first mounting structure mounts the first mounting part to one of a bicycle frame and a mounting adapter. The piston moves in the main caliper body along a piston movement axis that is non-parallel to the first mounting axis. The first and second mounting surfaces define a mounting plane. No portion of the main caliper body that is located between the first and second mounting surfaces extends beyond the mounting plane in a direction toward the bicycle frame in a mounted state of the bicycle disc brake caliper. The first mounting structure includes a first caliper bolt received in the first through hole and a first caliper nut threadedly engaged with the first caliper bolt.

Description

Bicycle disc brake caliper

The present invention generally relates to bicycle disc brake calipers. More specifically, the present invention relates to the installation of bicycle disc brake calipers to bicycles.

In general, many types of bicycle brake devices are currently available on the market. Some types of examples of conventional bicycle brake devices include rim brakes and disc brakes. The disc brake system provides substantial braking power in relation to the amount of braking force applied to the brake lever. In addition, disc brake systems typically provide a high degree of brake consistency in all types of weather and riding conditions. The disc brake system can be cable operated or hydraulically operated.

In general, the present disclosure is directed to various different features of bicycle disc brake caliper to bicycle installation.

In view of the state of the art and in accordance with the first aspect of the present disclosure, a bicycle disc brake caliper is substantially configured to include a main caliper body, a first mounting structure, and a piston. The main caliper body includes a first mounting portion having a first mounting surface and a second mounting portion having a second mounting surface. The first perforation extends from the first mounting surface along the first mounting axis. The first mounting structure is constructed to mount the first mounting portion to one of the bicycle frame and the mounting adapter. The piston is movably disposed on the main caliper body along a piston movement axis that is non-parallel to the first mounting axis. The first mounting surface and the second mounting surface define a mounting plane. In a mounted state in which the bicycle disc brake caliper is mounted to one of the bicycle frame and the mounting adapter, a portion of the main caliper body between the first mounting surface and the second mounting surface is in a direction toward the bicycle frame Does not extend beyond the mounting plane. The first mounting structure includes a first caliper bolt received in the first perforation and a first caliper nut threadedly engaged with the first caliper bolt.

Advantageously according to the first aspect of the invention, bicycle disc brake calipers can be easily and inexpensively mounted to different bicycle frames.

According to a second aspect of the invention, the bicycle disc brake caliper according to the first aspect is constructed such that the first mounting portion includes a first anti-rotation structure constructed to prevent rotation of the first caliper nut.

Advantageously according to the second aspect of the invention, the bicycle disc brake caliper can be easily mounted to the bicycle frame with a simple tool.

According to a third aspect of the invention, the bicycle disc brake caliper according to the first aspect is constructed such that the first anti-rotation structure includes a first recess engaged with the first caliper nut.

Advantageously according to the third aspect of the invention, the first caliper nut can be prevented from rotating relative to the main caliper body without the provision of additional components.

According to a fourth aspect of the invention, the bicycle disc brake caliper according to the third aspect is constructed such that the first recess surrounds the first perforation.

Advantageously according to the fourth aspect of the invention, the first recess can be easily manufactured.

According to a fifth aspect of the invention, the bicycle disc brake caliper according to any one of the first to fourth aspect is constructed such that the first caliper bolt has a first head portion engaged with the bicycle frame, and from the first The first shaft portion of the head portion extends. The first shaft portion has a length that is threadedly engaged with the first caliper nut through the bicycle frame and the first perforation.

Advantageously according to the fifth aspect of the invention, the first caliper bolt is mounted on the lower fork of the bicycle frame.

According to a sixth aspect of the invention, the bicycle disc brake caliper according to any one of the first to fourth aspect is constructed such that the first caliper bolt has a first head portion engaged with the mounting adapter, and A first shaft portion extending from a head portion. The first shaft portion has a length that is threadedly engaged with the first caliper nut through the mounting adapter and the first perforation. The first head portion is configured to be disposed on the mounting adapter without extending toward the bicycle frame beyond the mounting adapter.

Advantageously according to the sixth aspect of the invention, the mounting adapter can be attached to the main caliper body by the first caliper bolt such that the mounting adapter and the main caliper body are presented as a single unit.

According to a seventh aspect of the invention, the bicycle disc brake caliper according to any one of the first to sixth aspect, wherein the main caliper body further comprises a second perforation extending from the second mounting surface along the second mounting axis . The bicycle disc brake caliper further includes a second mounting structure including a second caliper bolt received in the second perforation and a second caliper nut threadedly engaged with the second caliper bolt.

Advantageously according to the seventh aspect of the invention, the main caliper body can be securely mounted to one of the bicycle frame and the mounting adapter.

According to an eighth aspect of the invention, the bicycle disc brake caliper according to the seventh aspect is constructed such that the second mounting portion includes a second anti-rotation structure constructed to prevent rotation of the second caliper nut.

Advantageously according to the eighth aspect of the invention, the bicycle disc brake caliper can be easily mounted to the bicycle frame with a simple tool.

According to a ninth aspect of the invention, the bicycle disc brake caliper according to the eighth aspect is constructed such that the second anti-rotation structure includes a second recess engaged with the second caliper nut.

Advantageously according to the ninth aspect of the invention, the second caliper nut can be prevented from rotating relative to the main caliper body without the provision of additional components.

According to a tenth aspect of the invention, the bicycle disc brake caliper according to the ninth aspect is constructed such that the second recess surrounds the second perforation.

Advantageously according to the tenth aspect of the invention, the second recess can be easily manufactured.

According to an eleventh aspect of the present invention, the bicycle disc brake caliper according to any one of the seventh to tenth aspects is constructed such that the second caliper bolt has a second head portion engaged with the bicycle frame, and The second shaft portion of the second head portion extends. The second shaft portion has a length that is threadedly engaged with the second caliper nut through the bicycle frame and the second perforation.

Advantageously according to the eleventh aspect of the invention, the second caliper bolt is mounted on the lower fork of the bicycle frame.

According to a twelfth aspect of the invention, the bicycle disc brake caliper according to any one of the seventh to tenth aspects is constructed such that the second caliper bolt has a second head portion engaged with the mounting adapter, and The second shaft portion of the second head portion extends. The second shaft portion has a length that is threadedly engaged with the second caliper nut through the mounting adapter and the second perforation. The second head portion is configured to be disposed on the mounting adapter without extending beyond the bicycle frame beyond the mounting adapter.

Advantageously according to the twelfth aspect of the invention, the mounting adapter can be attached to the main caliper body by the second caliper bolt such that the mounting adapter and the main caliper body are presented as a single unit.

According to a thirteenth aspect of the invention, the bicycle disc brake caliper according to any one of the seventh to twelfth aspects is constructed such that the second mounting axis is parallel to the first mounting axis.

Advantageously, according to the thirteenth aspect of the invention, the bicycle disc brake caliper can be easily mounted to the bicycle frame.

In accordance with a fourteenth aspect of the present disclosure, a bicycle disc brake caliper is provided substantially to include a main caliper body, a piston, and a mounting adapter body. The piston is movably disposed on the main caliper body along the axis of movement of the piston. The mounting adapter body includes a first mounting portion having a first mounting surface, a second mounting portion having a second mounting surface, and a first extension from the first mounting surface along a first mounting axis that is non-parallel to the axis of movement of the piston A hole, and a second hole extending from the second mounting surface along a second mounting axis that is parallel to the first mounting axis. The mounting adapter body is disposed on the main caliper body to become a single-piece component. The first mounting surface and the second mounting surface define a mounting plane. In the mounted state in which the bicycle disc brake caliper is mounted to the bicycle frame, the portion of the main caliper body between the first mounting surface and the second mounting surface does not extend beyond the mounting plane in the direction toward the bicycle frame. The first mounting axis and the second mounting axis are configured such that the distance between the first mounting axis and the second mounting axis is in a range between 30 mm and 80 mm.

Advantageously, according to the fourteenth aspect of the invention, the bicycle disc brake caliper can be easily and inexpensively mounted to the bicycle frame without the use of a separate mounting adapter.

According to a fifteenth aspect of the invention, the bicycle disc brake caliper according to the fourteenth aspect is constructed such that the first hole includes the first threaded hole and the second hole includes the second threaded hole.

Advantageously, according to a fifteenth aspect of the invention, in the case where the bicycle frame is not provided with a threaded hole for mounting a disc brake caliper, the bicycle disc brake caliper can be easily and inexpensively mounted to the bicycle frame.

According to a sixteenth aspect of the invention, the bicycle disc brake caliper according to the fourteenth aspect is constructed such that the first hole comprises the first perforation and the second hole comprises the second perforation.

Advantageously, according to a sixteenth aspect of the invention, in the case where the bicycle frame is provided with a threaded hole for mounting a disc brake caliper, the bicycle disc brake caliper can be easily and inexpensively mounted to the bicycle frame.

According to a seventeenth aspect of the invention, the bicycle disc brake caliper according to the thirteenth or sixteenth aspect is constructed such that the first perforation and the second perforation are elongated holes elongated in the adjustment direction.

Advantageously, according to the seventeenth aspect of the invention, the bicycle disc brake caliper can be adjusted relative to the bicycle frame.

According to an eighteenth aspect of the invention, the bicycle disc brake caliper according to the fourteenth aspect is constructed such that the adjustment direction is parallel to the piston movement axis.

Advantageously, according to an eighteenth aspect of the invention, the bicycle disc brake caliper is adjustable relative to the bicycle frame in a direction parallel to the axis of movement of the piston.

According to a nineteenth aspect of the invention, the bicycle disc brake caliper according to any one of the first to eighteenth aspects, wherein the main caliper body further comprises a hydraulic cylinder, the hydraulic cylinder being constructed to have a piston disposed therein .

Advantageously, according to the nineteenth aspect of the invention, a powerful and stable braking power can be obtained by using a hydraulically operated disc brake caliper.

According to a twentieth aspect of the invention, the bicycle disc brake caliper according to any one of the first to nineteenth aspects is constructed such that the piston includes the first piston and the second piston.

Advantageously, according to the twentieth aspect of the invention, powerful braking power can be obtained by using a pair of pistons.

According to a twenty first aspect of the invention, the bicycle disc brake caliper according to the twentieth aspect is constructed such that the first piston and the second piston are configured to face each other along the piston movement axis.

Advantageously according to the twenty first aspect of the invention, the powerful braking power can be obtained by using a pair of opposing pistons.

According to a twenty-second aspect of the invention, the bicycle disc brake caliper according to any one of the first to twenty-first aspects is constructed such that the first mounting surface and the second mounting surface are disposed on a single flat surface .

Advantageously according to the twenty-second aspect of the invention, the first mounting surface and the second mounting surface can be easily disposed.

According to a twenty-third aspect of the invention, the bicycle disc brake caliper according to any one of the first to twenty-first aspects is constructed such that the first mounting surface and the second mounting surface are separated from each other.

Advantageously, according to the twenty-third aspect of the invention, the weight of the bicycle disc brake caliper can be reduced.

Further, the other objects, features, aspects and advantages of the disclosed bicycle disc brake caliper will become more apparent to those skilled in the art from the following detailed description. Various embodiments of calipers.

The selected embodiment will now be explained with reference to the drawings. It will be apparent to those skilled in the art that the following description of the embodiments of the present invention is intended to be illustrative only and not to limit the invention as defined by the scope of the appended claims for purpose.

Referring first to Figure 1, a bicycle 1 is illustrated having a bicycle frame F equipped with a bicycle disc brake caliper 10A according to a first illustrative embodiment and a bicycle disc according to a second illustrative embodiment Brake caliper 10B. Bicycles and their various components are well known in the prior art, and therefore, bicycle 1 and its various components will not be discussed or illustrated in detail herein. Rather, the bicycle 1 and its various components will only be discussed to the extent required to understand the bicycle disc brake calipers 10A and 10B.

Basically, the bicycle frame F has a frame body FB and a front fork FF. The front fork FF is pivotally supported by the frame body FB to pivot about a tilted vertical mandrel in the front portion of the frame body FB. Here, the bicycle 1 is depicted as a road bike. The bicycle 1 further includes a sunken handlebar H coupled to the front fork FF, and a saddle or seat S coupled to the frame body FB. The front fork FF rotatably supports the front wheel FW at the lower end of the front fork FF. The front wheel FW has a front brake rotor BR1 to which the front brake rotor BR1 is attached so that the front brake rotor BR1 integrally rotates together with the front wheel FW. The frame body FB rotatably supports the rear wheel RW, and the rear wheel RW is rotatably supported on the rear portion of the frame body FB. The rear wheel RW has a rear brake rotor BR2 that is attached to the hub of the rear wheel RW such that the rear brake rotor BR2 integrally rotates together with the rear wheel RW. The bicycle 1 can be a mountaineering bicycle or an urban bicycle with a flat handlebar.

As seen in FIGS. 1 to 3, the bicycle disc brake caliper 10A is mounted to the front fork FF of the bicycle frame F, and the bicycle disc brake caliper 10B is mounted to the frame body FB of the bicycle frame F (ie, Chain stay). The bicycle disc brake caliper 10A is constructed to engage the front brake rotor BR1 in a conventional manner. The bicycle disc brake caliper 10B is constructed to engage the rear brake rotor BR2 in a conventional manner. Here, the bicycle disc brake calipers 10A and 10B are hydraulically operated. The bicycle disc brake caliper 10A is fluidly connected to the brake operating device BD by the first hydraulic hose H1, and the bicycle disc brake caliper 10B is fluidly connected to the brake operating device BD by the second hydraulic hose H2. . However, the bicycle disc brake calipers 10A and 10B can be mechanically (cable) operated.

As seen in Figures 2, 4 and 5, the bicycle disc brake caliper 10A basically includes a main caliper body 20 and a first mounting structure 22. In the first embodiment, the bicycle disc brake caliper 10A also includes a second mounting structure 24. Further, in the first embodiment, the bicycle disc brake caliper 10A is attached to the front fork FF of the bicycle frame F via the mounting adapter 26. However, depending on the mounting configuration of the front fork FF of the bicycle frame F, the mounting adapter 26 can be omitted. For example, the bicycle disc brake caliper 10B does not use the mounting adapter discussed below. Here, the mounting adapter 26 is attached to the front fork FF by a pair of fixing bolts 28. The fixing bolts 28 extend through the pair of openings 26a of the adapter 26 to mount the mounting adapter 26 to the front fork FF.

Referring to Figures 2, 4 and 5, the primary caliper body 20 will now be discussed in greater detail. In the illustrated embodiment, the primary caliper body 20 is a one-piece member. Alternatively, the primary caliper body 20 can be two or more pieces that are attached together by bolts, adhesives, or any other suitable fastening method. In the illustrated embodiment, the primary caliper body 20 is fabricated from a metallic material (eg, an aluminum alloy, a magnesium alloy, etc.). Also, the material of the main caliper body 20 is not limited to a metal material.

As seen in FIG. 4, the main caliper body 20 includes a first mounting portion 30 and a second mounting portion 32. The first mounting portion 30 has a first mounting surface 30a. The second mounting portion 32 has a second mounting surface 32a. As explained below, the first mounting structure 22 is constructed to mount the first mounting portion 30 to one of the bicycle frame F and the mounting adapter 26. Although the first mounting portion 30 is attached to the mounting adapter 26 that is then attached to the bicycle frame F, the first mounting portion 30 can be directly attached to the bicycle frame F. Similarly, as explained below, the second mounting structure 24 is constructed to mount the second mounting portion 32 to one of the bicycle frame F and the mounting adapter 26. Although the second mounting portion 32 is attached to the mounting adapter 26 that is then attached to the bicycle frame F, the second mounting portion 32 can be directly attached to the bicycle frame F.

Here, the first mounting surface 30a and the second mounting surface 32a are flat surfaces located in a single plane. Also, here, the first mounting surface 30a and the second mounting surface 32a are adjacent mounting surfaces. In other words, the first mounting surface 30a and the second mounting surface 32a are disposed on a single flat surface. However, as shown by broken lines in FIGS. 2 and 4, the first mounting surface 30a and the second mounting surface 32a can be separated from each other to provide a gap therebetween. The first mounting surface 30a and the second mounting surface 32a define a mounting plane P1. In a mounted state in which the bicycle disc brake caliper 10A is mounted to one of the bicycle frame F and the mounting adapter 26, the portion of the main caliper body 20 between the first mounting surface 30a and the second mounting surface 32a is oriented The bicycle frame F does not extend beyond the mounting plane P1 in the direction.

In the first embodiment, the primary caliper body 20 further includes a first perforation 34 extending from the first mounting surface 30a along the first mounting axis A1. Preferably, the primary caliper body 20 further includes a second perforation 36 extending from the second mounting surface 32a along the second mounting axis A2. The second mounting axis A2 is parallel to the first mounting axis A1. In the mounted state in which the bicycle disc brake caliper 10A is mounted to one of the bicycle frame F and the mounting adapter 26, the portion of the main caliper body 20 between the first mounting axis A1 and the second mounting axis A2 is It does not extend beyond the mounting plane P1 in the direction of the bicycle frame F. The first mounting axis A1 and the second mounting axis A2 are configured such that the distance therebetween is in a range between 30 mm and 80 mm. Preferably, the distance between the first mounting axis A1 and the second mounting axis A2 is in the range between 32 mm and 36 mm or in the range between 68 mm and 72 mm. The first through hole 34 and the second through hole 36 are elongated holes elongated in the adjustment direction D1. The adjustment direction D1 is parallel to the piston moving direction A3.

The first mounting structure 22 includes a first caliper bolt 40 and a first caliper nut 42. The first caliper bolt 40 is received in the first perforation 34. The first caliper nut 42 is threadedly engaged with the first caliper bolt 40. The first caliper bolt 40 has a first head portion 40a and a first shaft portion 40b. The first head portion 40a is engaged with the mounting adapter 26. The first shaft portion 40b extends from the first head portion 40a. The first shaft portion 40b has a length that is threadedly engaged with the first caliper nut 42 through the mounting adapter 26 and the first perforation 34. Specifically, the first shaft portion 40b extends through one of the pair of openings 26b in the mounting adapter 26 to mount the mounting adapter 26 to the main caliper body 20. The first head portion 40a is configured to be disposed on the mounting adapter 26 without extending toward the bicycle frame F beyond the mounting adapter 26.

The second mounting structure 24 includes a second caliper bolt 44 and a second caliper nut 46. The second caliper bolt 44 is received in the second perforation 36. The second caliper nut 46 is threadedly engaged with the second caliper bolt 44. The second caliper bolt 44 has a second head portion 44a and a second shaft portion 44b. The second head portion 44a is engaged with the mounting adapter 26. The second shaft portion 44b extends from the second head portion 44a. The second shaft portion 44b has a length that is threadedly engaged with the second caliper nut 46 through the mounting adapter 26 and the second through hole 36. Specifically, the second shaft portion 44b extends through one of the pair of openings 26b in the mounting adapter 26 to mount the mounting adapter 26 to the main caliper body 20. The second head portion 44a is configured to be disposed on the mounting adapter 26 without extending toward the bicycle frame F beyond the mounting adapter 26.

As seen in Figures 2 and 4, the first mounting portion 30 includes a first anti-rotation structure 50 that is configured to prevent rotation of the first caliper nut 42. The first anti-rotation structure 50 includes a first recess 50a that engages the first caliper nut 42. The first recess 50a surrounds the first through hole 34. The first recess 50a is sized such that opposite flat surfaces of the first recess 50a contact opposite opposite flat surfaces of the first caliper nut 42. The second mounting portion 32 includes a second anti-rotation structure 52 that is configured to prevent rotation of the second caliper nut 46. The second anti-rotation structure 52 includes a second recess 52a that engages the second caliper nut 46. The second recess 52a surrounds the second through hole 36. The second recess 52a is sized such that opposite flat surfaces of the second recess 52a contact opposite opposite flat surfaces of the second caliper nut 46.

Referring to FIG. 5, the bicycle disc brake caliper 10A further includes a piston 60. The piston 60 is movably disposed on the main caliper body 20 along a piston movement axis A3 that is not parallel to the first mounting axis A1. Here, the piston 60 includes a first piston 62 and a second piston 64. The first piston 62 and the second piston 64 are configured to face each other along the piston movement axis A3. The main caliper body 20 also includes a hydraulic cylinder 66 that is constructed to define a first piston 62 therein. The hydraulic cylinder 66 is configured such that the first perforations 34 and the second perforations 36 are at least partially aligned with the cylinder bore 66 in a direction perpendicular to the adjustment direction D1. The main caliper body 20 also includes a hydraulic cylinder 68 that is constructed to define a second piston 64 therein. However, the bicycle disc brake caliper 10A can be constructed to have only a single piston if needed and/or desired.

The bicycle disc brake caliper 10A also includes at least one brake pad 70. Preferably, as in the illustrated embodiment, the bicycle disc brake caliper 10A further includes two brake pads. In other words, in addition to the brake pad 70, the bicycle disc brake caliper 10A also includes a brake pad 72. The brake pads 70 and 72 are movably attached to the main caliper body 20. The brake pads 70 and 72 are movably attached to the main caliper body 20 by a support pin 74 having a C-clip 76. The primary caliper body 20 defines a brake rotor receiving slot 78 for receiving the front brake rotor BR1. The brake pads 70 and 72 are movably disposed in the brake rotor receiving slot 78 of the primary caliper body 20. When the bicycle disc brake caliper 10A is in the unactuated position, the brake pads 70 and 72 are maintained spaced apart by the biasing member 80. The front brake rotor BR1 is disposed between the brake pads 70 and 72. Main caliper body 20, brake pads 70 and 72, support pin 74, biasing member 80, and pistons 62 and 64 form the basic components of a bicycle disc brake caliper.

The main caliper body 20 further includes a hydraulic fluid inlet port 82 that is attached to the hydraulic hose H1 by using a conventional hydraulic hose connector C1 disposed on one end of the hydraulic hose H1. For example, the hydraulic hose connector C1 of the hydraulic hose H1 can be a threaded hose joint, as shown in FIG. Alternatively, the primary caliper body 20 can be constructed with a hydraulic fluid inlet port that is configured to receive a banjo bolt for fluidly coupling the hydraulic hose to the main caliper body 20. Here, the hydraulic cylinders 66 and 68 are fluidly connected to the hydraulic fluid inlet port 82 via the inner fluid passages 84 and 86. Pistons 62 and 64 are biased away from each other by pressing brake pads 70 and 72 outward against biasing members 80 of top pistons 62 and 64. The pistons 62 and 64 are moved together due to the pressure of the hydraulic fluid acting on the pistons 62 and 64 by the user compressing the brake lever of the brake operating device. Preferably, although not shown, the primary caliper body 20 further includes a fluid outlet port for receiving the discharge valve.

Referring to Figures 3, 6, and 7, bicycle disc brake caliper 10B will now be discussed in greater detail. The bicycle disc brake caliper 10B basically includes a main caliper body 120 and a first mounting structure 122. Preferably, the bicycle disc brake caliper 10B further includes a second mounting structure 124. The main caliper body 120 can be identical to the main caliper body 20 or can be modified slightly from the main caliper body 20 to accommodate the mounting configuration of the frame body FB (i.e., the rear lower fork) of the bicycle frame F. In view of the similarities between the primary caliper body 20 and the primary caliper body 120, the primary caliper body 120 will not be discussed in detail herein.

As seen in FIG. 3, the main caliper body 120 includes a first mounting portion 130 and a second mounting portion 132. The first mounting portion 130 has a first mounting surface 130a. The second mounting portion 132 has a second mounting surface 132a. The first mounting surface 130a and the second mounting surface 132a define a mounting plane P1. In a mounted state in which the bicycle disc brake caliper 10B is mounted to the bicycle frame F, a portion of the main caliper body 120 between the first mounting surface 130a and the second mounting surface 132a is in a direction toward the bicycle frame F and Does not extend beyond the mounting plane P1. Similar to the bicycle disc brake caliper 10A, the first mounting surface 130a and the second mounting surface 132a are disposed on a single flat surface in the bicycle disc brake caliper 10B. However, as shown by broken lines in FIGS. 3 and 6, the first mounting surface 130a and the second mounting surface 132a can be separated from each other to provide a gap therebetween.

Here, as seen in FIG. 6, the primary caliper body 120 further includes a first perforation 134 extending from the first mounting surface 130a along the first mounting axis A1. Preferably, the primary caliper body 120 further includes a second aperture 136 extending from the second mounting surface 132a along the second mounting axis A2. The second mounting axis A2 is parallel to the first mounting axis A1. In the mounted state in which the bicycle disc brake caliper 10B is mounted to the bicycle frame F, the portion of the main caliper body 120 between the first mounting axis A1 and the second mounting axis A2 is not oriented in the direction toward the bicycle frame F. Extending beyond the mounting plane P1. The first through hole 134 and the second through hole 136 are elongated holes elongated in the adjustment direction D1. The adjustment direction D1 is parallel to the piston moving direction A3.

The first mounting structure 122 includes a first caliper bolt 140 and a first caliper nut 142. The first caliper bolt 140 is received in the first bore 134. The first caliper nut 142 is threadedly engaged with the first caliper bolt 140. The first caliper bolt 140 has a first head portion 140a and a first shaft portion 140b. The first head portion 140a is engaged with the bicycle frame. The first shaft portion 140b extends from the first head portion 140a. The first shaft portion 140b has a length that is threadedly engaged with the first caliper nut 142 through the bicycle frame F and the first through hole 134.

The second mounting structure 124 includes a second caliper bolt 144 and a second caliper nut 146. The second caliper bolt 144 is received in the second perforation 136. The second caliper nut 146 is threadedly engaged with the second caliper bolt 144. The second caliper bolt 144 has a second head portion 144a that engages the bicycle frame F, and a second shaft portion 144b that extends from the second head portion 144a. The second shaft portion 144b has a length that is threadedly engaged with the second caliper nut 146 through the bicycle frame F and the second through hole 136.

As seen in Figures 3 and 6, the first mounting portion 130 includes a first anti-rotation structure 150 that is configured to prevent rotation of the first caliper nut 142. The first anti-rotation structure 150 includes a first recess 150a that engages the first caliper nut 142. The first recess 150a surrounds the first through hole 134. The first recess 150a is sized such that opposite flat surfaces of the first recess 150a contact opposite opposite flat surfaces of the first caliper nut 142. The second mounting portion 132 includes a second anti-rotation structure 152 that is configured to prevent rotation of the second caliper nut 146. The second anti-rotation structure 152 includes a second recess 152a that engages the second caliper nut 146. The second recess 152a surrounds the second through hole 136. The second recess 152a is sized such that opposite flat surfaces of the second recess 152a contact opposite opposite flat surfaces of the second caliper nut 146.

Referring to Figure 7, the bicycle disc brake caliper 10B also includes a piston 160. The piston 160 is movably disposed on the main caliper body 120 along a piston movement axis A3 that is not parallel to the first mounting axis A1. Here, the piston 160 includes a first piston 162 and a second piston 164. The first piston 162 and the second piston 164 are configured to face each other along the piston movement axis A3. The main caliper body 120 also includes a hydraulic cylinder 166 that is constructed to define a first piston 162 therein. The hydraulic cylinder 166 is configured such that the first perforations 134 and the second perforations 136 are at least partially aligned with the cylinder bore 166 in a direction perpendicular to the adjustment direction D1. The main caliper body 120 also includes a hydraulic cylinder 168 that is constructed to define a second piston 164 therein. However, the bicycle disc brake caliper 10B can be constructed to have only a single piston if needed and/or desired.

The bicycle disc brake caliper 10B also includes at least one brake pad 170. Preferably, as in the illustrated embodiment, the bicycle disc brake caliper 10B also includes two brake pads. In other words, in addition to the brake pad 170, the bicycle disc brake caliper 10B also includes a brake pad 172. The brake pads 170 and 172 are movably attached to the main caliper body 120. The brake pads 170 and 172 are movably attached to the main caliper body 120 by a support pin 174 having a C-clip 176. The primary caliper body 120 defines a brake rotor receiving slot 178 for receiving the front brake rotor BR1. The brake pads 170 and 172 are movably disposed in the brake rotor receiving slot 178 of the primary caliper body 120. When the bicycle disc brake caliper 10B is in the unactuated position, the brake pads 170 and 172 are maintained spaced apart by the biasing member 180. The front brake rotor BR1 is disposed between the brake pads 170 and 172. Main caliper body 120, brake pads 170 and 172, support pin 174, biasing element 180, and pistons 162 and 164 form the basic components of a bicycle disc brake caliper.

The main caliper body 120 further includes a hydraulic fluid inlet port 182 that is attached to the hydraulic hose H2 by using a conventional hydraulic hose connector C2 disposed on one end of the hydraulic hose H2. For example, the hydraulic hose connector C2 of the hydraulic hose H2 can be a threaded hose joint, as shown in FIG. Alternatively, the primary caliper body 120 can be constructed with a hydraulic fluid inlet port that is configured to receive a receiving bolt for fluidly coupling the hydraulic hose to the primary caliper body 120. Here, the hydraulic cylinders 166 and 168 are fluidly connected to the hydraulic fluid inlet port 182 via the inner fluid passages 184 and 186. Pistons 162 and 164 are biased away from each other by pressing brake pads 170 and 172 outward against biasing members 180 of top pistons 162 and 164. The pistons 162 and 164 are moved together due to the pressure of the hydraulic fluid acting on the pistons 162 and 164 by the user compressing the brake lever of the brake operating device. Preferably, although not shown, the primary caliper body 120 further includes a fluid outlet port for receiving the bleed valve.

Referring to Figures 8 and 9, a bicycle disc brake caliper 210A in accordance with a third illustrative embodiment is illustrated. The bicycle disc brake caliper 210A is attached to the front fork FF of the bicycle frame F of the bicycle 1. The bicycle disc brake caliper 210A differs from the bicycle disc brake caliper 10A in that the mounting adapter is integrated into a mounting adapter body as discussed below, and the bicycle disc brake caliper 210A is directly mounted to the front fork FF. . The bicycle disc brake caliper 210A basically includes a main caliper body 220 and a mounting adapter body 226. Here, the bicycle disc brake caliper 210A is attached to the front fork FF by a pair of fixing bolts 228. In view of the similarities between the primary caliper body 220 and the primary caliper body 20, only the differences between the primary caliper body 220 and the primary caliper body 20 will be discussed in detail herein.

The mounting adapter body 226 includes a first mounting portion 230 and a second mounting portion 232. The first mounting portion 230 has a first mounting surface 230a. The second mounting portion 232 has a second mounting surface 232a. Similar to the previous embodiment, the first mounting surface 230a and the second mounting surface 232a are disposed on a single flat surface. Also, similar to the previous embodiment, the first mounting surface 230a and the second mounting surface 232a can be separated relative to each other.

The mounting adapter body 226 is disposed on the main caliper body 220 to become a single-piece component. In other words, the mounting adapter body 226 is not separable from the main caliper body 220. The first mounting surface 230a and the second mounting surface 232a define a mounting plane P1. Similar to the foregoing illustrative embodiment, in the mounted state in which the bicycle disc brake caliper 210A is mounted to the bicycle frame F, the portion of the main caliper body 220 between the first mounting surface 230a and the second mounting surface 232a is It does not extend beyond the mounting plane P1 in the direction of the bicycle frame F.

In a third illustrative embodiment, the mounting adapter body 226 has a first aperture 234 and a second aperture 236. The first aperture 234 includes a first aperture 234a and the second aperture 236 includes a second aperture 236a. The first through hole 234a and the second through hole 236a are elongated holes elongated in the adjustment direction D1. The adjustment direction D1 is parallel to the piston moving direction A3. The first bore 234 extends from the first mounting surface 230a along the first mounting axis A1. The second bore 236 extends from the second mounting surface 232a along the second mounting axis A2. The first mounting axis A1 is not parallel to the piston moving axis A3. The second mounting axis A2 is parallel to the first mounting axis A1. The first mounting axis A1 and the second mounting axis A2 are configured such that the distance therebetween is in a range between 30 mm and 80 mm. Preferably, the distance between the first mounting axis A1 and the second mounting axis A2 is in the range between 32 mm and 36 mm or in the range between 68 mm and 72 mm.

The bicycle disc brake caliper 210A also includes a piston 260. The piston 260 is movably disposed on the main caliper body 220 along a piston movement axis A3 that is not parallel to the first mounting axis A1. Here, the piston movement axis A3 is perpendicular to the first mounting axis A1 when viewed from a direction perpendicular to both the first mounting axis A1 and the piston moving axis A3. Here, the piston 260 preferably includes two pistons that are configured to face each other along the piston movement axis A3. The main caliper body 220 further includes two hydraulic cylinders that are constructed to configure the pistons therein. Similar to the previous illustrative embodiment, one of the two cylinders is configured such that the first perforation 234a and the second perforation 236a are at least partially aligned with one of the two cylinders in a direction perpendicular to the adjustment direction D1. . The bicycle disc brake caliper 210A also includes at least one brake pad 270. Preferably, as in the illustrated embodiment, the bicycle disc brake caliper 210A further includes a movably attached to the main caliper body by the support pin 274 in the same manner as in the bicycle disc brake caliper 10A. 220 brake pads.

Referring to Figures 10 and 11, a bicycle disc brake caliper 310B in accordance with a fourth illustrative embodiment is illustrated. The bicycle disc brake caliper 310B is attached to the frame body FB of the bicycle frame F of the bicycle 1 (that is, the rear fork). The bicycle disc brake caliper 310B differs from the bicycle disc brake caliper 10B in the installation of the bicycle disc brake caliper 310B to the frame body FB (ie, the rear lower fork). The bicycle disc brake caliper 310B basically includes a main caliper body 320 and a mounting adapter body 326. In view of the similarities between the primary caliper body 320 and the primary caliper body 120, only the differences between the primary caliper body 320 and the primary caliper body 120 will be discussed in detail herein. Here, the bicycle disc brake caliper 310B is attached to the frame body FB by a pair of fixing bolts 328.

The mounting adapter body 326 includes a first mounting portion 330 and a second mounting portion 332. The first mounting portion 330 has a first mounting surface 330a. The second mounting portion 332 has a second mounting surface 332a. Similar to the previous embodiment, the first mounting surface 330a and the second mounting surface 332a are disposed on a single flat surface. Also, similar to the previous embodiment, the first mounting surface 330a and the second mounting surface 332a can be separated relative to each other.

The mounting adapter body 326 is disposed on the main caliper body 320 to become a single-piece component. In other words, the mounting adapter body 326 is not separable from the main caliper body 320. The first mounting surface 330a and the second mounting surface 332a define a mounting plane P1. Similar to the foregoing illustrative embodiment, in the mounted state in which the bicycle disc brake caliper 310B is mounted to the bicycle frame F, the portion of the main caliper body 320 located between the first mounting surface 330a and the second mounting surface 332a is It does not extend beyond the mounting plane P1 in the direction of the bicycle frame F.

In a fourth illustrative embodiment, the mounting adapter body 326 has a first aperture 334 and a second aperture 336. The first aperture 334 includes a first aperture 334a and the second aperture 336 includes a second aperture 336a. The first bore 334 extends from the first mounting surface 330a along the first mounting axis A1. The second bore 336 extends from the second mounting surface 332a along the second mounting axis A2. The first mounting axis A1 is not parallel to the piston moving axis A3. The second mounting axis A2 is parallel to the first mounting axis A1. The first mounting axis A1 and the second mounting axis A2 are configured such that the distance therebetween is in a range between 30 mm and 80 mm. Preferably, the distance between the first mounting axis A1 and the second mounting axis A2 is in the range between 32 mm and 36 mm or in the range between 68 mm and 72 mm.

The bicycle disc brake caliper 310B also includes a piston 360. The piston 360 is movably disposed on the main caliper body 320 along a piston movement axis A3 that is not parallel to the first mounting axis A1. Here, the piston movement axis A3 is perpendicular to the first mounting axis A1 when viewed from a direction perpendicular to both the first mounting axis A1 and the piston moving axis A3. Here, the piston 360 preferably includes two pistons that are configured to face each other along the piston movement axis A3. The main caliper body 320 also includes two hydraulic cylinders that are configured to configure the pistons therein. Similar to the previous illustrative embodiment, one of the two cylinders is configured such that the first perforation 334a and the second perforation 336a are at least partially aligned with one of the two cylinders in a direction perpendicular to the adjustment direction D1. . The bicycle disc brake caliper 310B also includes at least one brake pad 370. Preferably, as in the illustrated embodiment, the bicycle disc brake caliper 310B further includes a movably attached to the main caliper body by the support pin 374 in the same manner as in the bicycle disc brake caliper 10B. Two brake pads of 320.

The term "comprising" and its derivatives, as used herein, is intended to be an open-ended term that defines the existence of the described features, components, components, groups, integers, and/or steps. However, the existence of other features, elements, components, groups, integers, and/or steps that are not described is not excluded. The foregoing also applies to words having similar meanings, such as the terms "including", "having" and their derivatives. Also, the terms "component", "section", "portion", "member", or "element", when used in the singular, can have the meaning of a single component or a plurality of components unless stated otherwise.

The following directional terms used herein are "facing the frame side", "non-facing frame side", "forward", "backward", "front", "back", "upper", "lower", " Top, Bottom, Up, Down, Top, Bottom, Side, Vertical, Horizontal, Vertical, and Cross, and so on Directional terms refer to those directions for bicycles that are equipped with bicycle disc brake calipers in an upright riding position. Accordingly, these directional terms used to describe bicycle disc brake calipers should be interpreted relative to bicycles that are equipped with bicycle disc brake calipers on a horizontal surface in an upright riding position. The terms "left" and "right" are used to indicate "right" when viewed from the rear of the bicycle and when referring to the right side, and indicate "left" when viewed from the rear of the bicycle and referring to the left side.

Also, it will be appreciated that although the terms "first" or "second" may be used herein to describe various components, these components should not be limited by these terms. These terms are used only to distinguish one component from another. Thus, for example, a first component discussed above could be termed a second component, and vice versa, without departing from the teachings of the invention. The term "attached" or "attached" as used herein encompasses the following configuration: by attaching an element directly to another element, the element is directly secured to the configuration of the other element; The components are indirectly secured to the configuration of the other component, and the component is integrated with the other component, that is, the component is essentially part of the other component. This definition also applies to words of similar meaning, such as "connected", "connected", "coupled", "installed", "combined", "fixed" and its derivatives. Finally, the terms "substantially", "about", and "approximately" as used herein mean a reasonable amount of variation of the modified term such that the final result does not change significantly.

Although only selected embodiments have been chosen to illustrate the invention, it will be apparent to those skilled in the art from this disclosure that the scope of the invention as defined in the appended claims In the following, various changes and modifications can be made here. For example, the dimensions, shapes, locations, or orientations of the various components may be varied as needed and/or desired, unless such a statement is made, as long as such changes do not substantially affect the intended function. Unless explicitly stated otherwise, components that are shown as being directly connected or in contact with one another can have intermediate structures disposed therebetween as long as such changes do not substantially affect their intended function. The function of one element can be implemented by two elements, and vice versa, unless it is stated otherwise.

The structure and function of one embodiment can be employed in another embodiment. For example, while a bicycle disc brake caliper is illustrated as being mounted to a front fork as shown in FIG. 2, it will be apparent to those skilled in the art from this disclosure that a bicycle disc brake caliper according to the present invention can be used by The mounting configuration of Figure 3 is mounted to the front fork. Similarly, although the bicycle disc brake caliper is illustrated as being mounted to the lower fork as shown in FIG. 3, it will be apparent to those skilled in the art from this disclosure that the bicycle disc brake caliper according to the present invention can It is mounted to the lower fork by using the mounting configuration of FIG. 2.

All of the advantages do not necessarily occur simultaneously in a particular embodiment. Each feature that differs from the prior art, whether alone or in combination with other features, should also be considered as a separate description of the applicant's further invention, including structural and/or functional concepts embodied by such features. Therefore, the foregoing description of the exemplary embodiments of the invention are intended to

1‧‧‧Bicycle

5‧‧‧ hatching

7‧‧‧ hatching

10‧‧‧ Bicycle disc brake calipers

10A‧‧‧ bicycle disc brake calipers

10B‧‧‧ bicycle disc brake calipers

20‧‧‧Main caliper body

22‧‧‧First installation structure

24‧‧‧Second installation structure

26‧‧‧Installation adapter

26a‧‧‧ Opening

28‧‧‧ fixing bolts

30‧‧‧First Installation Department

30a‧‧‧First mounting surface

32‧‧‧Second Installation Department

32a‧‧‧Second mounting surface

34‧‧‧First perforation

36‧‧‧Second perforation

40‧‧‧First caliper bolt

40a‧‧‧First head section

40b‧‧‧First shaft section

42‧‧‧First caliper nut

44‧‧‧Second caliper bolt

44a‧‧‧Second head section

44b‧‧‧Second shaft part

46‧‧‧Second caliper nut

50‧‧‧First anti-rotation structure

50a‧‧‧First recess

52‧‧‧Second anti-rotation structure

52a‧‧‧Second recess

60‧‧‧Piston

62‧‧‧First Piston

64‧‧‧second piston

66‧‧‧Hydraulic cylinder

68‧‧‧Hydraulic cylinder

70‧‧‧Watch piece

72‧‧‧ brake pads

74‧‧‧Support pins

76‧‧‧C-clip

78‧‧‧Brake rotor receiving slot

80‧‧‧ biasing element

82‧‧‧Hydraulic fluid inlet埠

84‧‧‧Inner fluid passage

86‧‧‧Inner fluid passage

120‧‧‧Main caliper body

122‧‧‧First installation structure

130‧‧‧First Installation Department

130a‧‧‧First mounting surface

132‧‧‧Second Installation Department

132a‧‧‧Second mounting surface

134‧‧‧First perforation

136‧‧‧Second perforation

140‧‧‧First caliper bolt

140a‧‧‧First head section

140b‧‧‧First shaft section

142‧‧‧First caliper nut

144‧‧‧Second caliper bolt

144a‧‧‧Second head section

144b‧‧‧Second shaft part

146‧‧‧Second caliper nut

150‧‧‧First anti-rotation structure

150a‧‧‧First recess

152a‧‧‧Second recess

152‧‧‧Second anti-rotation structure

160‧‧‧Piston

162‧‧‧First Piston

164‧‧‧second piston

166‧‧‧Hydraulic cylinder

168‧‧‧Hydraulic cylinder

170‧‧‧ brake pads

172‧‧‧Watch piece

174‧‧‧Support pins

176‧‧‧C-clip

178‧‧‧Brake rotor receiving slot

180‧‧‧ biasing element

182‧‧‧Hydraulic fluid inlet埠

184‧‧‧ fluid passage

186‧‧‧ fluid passage

210A‧‧‧ bicycle disc brake calipers

220‧‧‧Main caliper body

226‧‧‧Installing the adapter body

228‧‧‧ fixing bolts

230‧‧‧First Installation Department

230a‧‧‧First mounting surface

232‧‧‧Second Installation Department

232a‧‧‧Second mounting surface

234‧‧‧ first hole

234a‧‧‧First perforation

236‧‧‧Second hole

236a‧‧‧Second perforation

260‧‧‧Piston

270‧‧‧ brake pads

274‧‧‧Support pin

310B‧‧‧ bicycle disc brake calipers

320‧‧‧Main caliper body

326‧‧‧Installing the adapter body

328‧‧‧ fixing bolts

330‧‧‧First Installation Department

330a‧‧‧First mounting surface

332‧‧‧Second Installation Department

332a‧‧‧Second mounting surface

334‧‧‧ first hole

334a‧‧‧First perforation

336‧‧‧Second hole

336a‧‧‧second perforation

360‧‧‧Piston

370‧‧‧Watch piece

374‧‧‧Support pins

A1‧‧‧First installation axis

A2‧‧‧Second installation axis

A3‧‧‧Piston moving direction

BD‧‧‧Brake operating device

BR1‧‧‧ front brake rotor

BR2‧‧‧ Rear brake rotor

C1‧‧‧Hydraulic hose connector

C2‧‧‧Hydraulic hose connector

D1‧‧‧Adjustment direction

F‧‧‧Bicycle frame

FB‧‧‧ frame body

FF‧‧‧ front fork

FW‧‧ front wheel

H‧‧‧Sinking handlebar

H1‧‧‧First hydraulic hose

H2‧‧‧Second hydraulic hose

P1‧‧‧Installation plane

RW‧‧‧ rear wheel

S‧‧‧ seats

Reference is now made to the accompanying drawings that form part of this original disclosure:

1 is a side view of a bicycle equipped with a bicycle disc brake caliper according to a first illustrative embodiment on a front portion of the bicycle, and a second illustrative embodiment on a rear portion of the bicycle Bicycle disc brake caliper;

2 is an enlarged side elevational view of a front portion of a bicycle including a bicycle disc brake caliper according to a first illustrative embodiment, and a bicycle disc brake caliper assembly mounting the adapter;

Figure 3 is an enlarged side elevational view of the rear portion of the bicycle showing the bicycle disc brake caliper according to the second illustrative embodiment;

4 is an exploded perspective view of the bicycle disc brake caliper according to the first illustrative embodiment illustrated in FIGS. 1 and 2;

Figure 5 is a cross-sectional view of the bicycle disc brake caliper according to the first illustrative embodiment, taken along line 5-5 of Figure 2;

Figure 6 is an exploded perspective view of the bicycle disc brake caliper according to the second illustrative embodiment illustrated in Figures 1 and 3;

Figure 7 is a cross-sectional view of the bicycle disc brake caliper according to the second illustrative embodiment, taken along line 7-7 of Figure 2;

Figure 8 is an enlarged side elevational view of the front portion of the bicycle showing the bicycle disc brake caliper according to the third illustrative embodiment;

Figure 9 is an enlarged partial elevational view of the mounting adapter body of the bicycle disc brake caliper illustrated in Figure 8;

Figure 10 is an enlarged side elevational view of the rear portion of the bicycle showing the bicycle disc brake caliper according to the fourth illustrative embodiment;

Figure 11 is an enlarged partial elevational view of the mounting adapter body of the bicycle disc brake caliper illustrated in Figure 10.

Claims (23)

A bicycle disc brake caliper comprising: a main caliper body including a first mounting portion having a first mounting surface, a second mounting portion having a second mounting surface, and a first mounting axis from the first mounting surface a first perforation extending; a first mounting structure constructed to mount the first mounting portion to one of the bicycle frame and the mounting adapter; and a piston movably disposed along the piston moving axis The piston caliper body is non-parallel to the first mounting axis; wherein the first mounting surface and the second mounting surface define a mounting plane, and the bicycle disc brake caliper is mounted to the bicycle frame And the mounting state of the one of the mounting adapters, the portion of the main caliper body between the first mounting surface and the second mounting surface does not extend beyond the mounting in a direction toward the bicycle frame Plane, the first mounting structure includes a first caliper bolt received in the first perforation, and the first The first caliper clamp bolt nut threadably engaged. A bicycle disc brake caliper according to claim 1, wherein the first mounting portion includes a first anti-rotation structure constructed to prevent rotation of the first caliper nut. A bicycle disc brake caliper according to claim 2, wherein the first anti-rotation structure includes a first recess engaged with the first caliper nut. The bicycle disc brake caliper of claim 3, wherein the first recess surrounds the first perforation. The bicycle disc brake caliper according to any one of claims 1 to 4, wherein the first caliper bolt has a first head portion engaged with the bicycle frame, and from the first head portion An extended first shaft portion having a length that is threadedly engaged with the first caliper nut through the bicycle frame and the first through hole. The bicycle disc brake caliper according to any one of claims 1 to 4, wherein the first caliper bolt has a first head portion engaged with the mounting adapter, and from the first head a partially extending first shaft portion having a length that is threadedly engaged with the first caliper nut through the mounting adapter and the first through hole, the first head portion being built The configuration is configured on the mounting adapter without extending beyond the bicycle adapter over the mounting adapter. The bicycle disc brake caliper according to any one of claims 1 to 4, wherein the main caliper body further includes a second perforation extending from the second mounting surface along the second mounting axis, and the bicycle The disc brake caliper also includes a second mounting structure including a second caliper bolt received in the second perforation and a second caliper nut threadedly engaged with the second caliper bolt. The bicycle disc brake caliper of claim 7, wherein the second mounting portion includes a second anti-rotation structure constructed to prevent rotation of the second caliper nut. The bicycle disc brake caliper of claim 8, wherein the second anti-rotation structure includes a second recess that engages the second caliper nut. The bicycle disc brake caliper of claim 9, wherein the second recess surrounds the second perforation. The bicycle disc brake caliper of claim 7, wherein the second caliper bolt has a second head portion engaged with the bicycle frame, and a second shaft extending from the second head portion In part, the second shaft portion has a length that is threadedly engaged with the second caliper nut through the bicycle frame and the second through hole. A bicycle disc brake caliper according to claim 7 wherein the second caliper bolt has a second head portion engaged with the mounting adapter and a second shaft extending from the second head portion a rod portion having a length threadedly engaged with the second caliper nut through the mounting adapter and the second through hole, the second head portion being constructed to face the bicycle The frame is configured to be mounted on the mounting adapter in the event that the frame extends beyond the mounting adapter. The bicycle disc brake caliper of claim 7, wherein the second mounting axis is parallel to the first mounting axis. A bicycle disc brake caliper comprising: a main caliper body; a piston movably disposed on the main caliper body along a piston movement axis; and a mounting adapter body including a first having a first mounting surface a mounting portion, a second mounting portion having a second mounting surface, a first hole extending from the first mounting surface along a first mounting axis that is non-parallel to the axis of movement of the piston, and from the second mounting surface a second hole extending from the second mounting axis parallel to the first mounting axis; wherein the mounting adapter body is disposed on the main caliper body to form a single-piece component, the first mounting surface and the second mounting The surface defines a mounting plane, and in a mounted state in which the bicycle disc brake caliper is mounted to the bicycle frame, a portion of the main caliper body between the first mounting surface and the second mounting surface faces the bicycle frame The direction does not extend beyond the mounting plane, and the first mounting axis and the second mounting axis are matched The distance between the first mounting axis and the second mounting axis is such that it is between 30 mm and 80 mm. The bicycle disc brake caliper of claim 14, wherein the first hole comprises a first threaded hole and the second hole comprises a second threaded hole. The bicycle disc brake caliper of claim 14, wherein the first hole comprises a first perforation and the second hole comprises a second perforation. The bicycle disc brake caliper of claim 16, wherein the first perforation and the second perforation are elongated holes elongated in an adjustment direction. The bicycle disc brake caliper of claim 17, wherein the adjustment direction is parallel to the piston movement axis. The bicycle disc brake caliper according to any one of claims 1 to 4, wherein the main caliper body further comprises a hydraulic cylinder that is configured to configure the piston therein. The bicycle disc brake caliper of any one of claims 1 to 4 and 14 to 18, wherein the piston comprises a first piston and a second piston. The bicycle disc brake caliper of claim 20, wherein the first piston and the second piston are configured to face each other along the piston movement axis. The bicycle disc brake caliper of any one of claims 1 to 4 and 14 to 18, wherein the first mounting surface and the second mounting surface are disposed on a single flat surface. The bicycle disc brake caliper of any one of claims 1 to 4 and 14 to 18, wherein the first mounting surface and the second mounting surface are separated from each other.