TWI711556B - 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 relates generally to bicycle disc brake calipers. More precisely, the present invention relates to the installation of a bicycle disc brake caliper to a bicycle.

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

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

In view of the state of the known technology and according to the first aspect of the present disclosure, a bicycle disc brake caliper is basically configured to include 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. The first through hole extends from the first mounting surface along the first mounting axis. The first mounting structure is constructed as one of mounting the first mounting part on the bicycle frame and mounting the adapter. The piston is movably arranged on the main caliper body along a piston movement axis that is not parallel to the first installation axis. The first mounting surface and the second mounting surface define a mounting plane. When the bicycle disc brake caliper is installed in one of the bicycle frame and the mounting adapter, the part of the main caliper body located between the first mounting surface and the second mounting surface is in the direction facing the bicycle frame Does not extend beyond the installation plane. The first mounting structure includes a first caliper bolt received in the first through hole, and a first caliper nut screwingly engaged with the first caliper bolt.

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

According to a second aspect of the present invention, the bicycle disc brake caliper according to the first aspect is constructed so 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 present invention, the bicycle disc brake caliper can be easily mounted on the bicycle frame with simple tools.

According to a third aspect of the present 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 present invention, the first caliper nut can be prevented from rotating relative to the main caliper body without providing additional components.

According to a fourth aspect of the present 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 present invention, the bicycle disc brake caliper according to any one of the first to fourth aspects is constructed such that the first caliper bolt has a first head portion engaged with the bicycle frame, and a second The first shaft portion from which the head portion extends. The first shaft part has a length that passes through the bicycle frame and the first through hole to be screwed with the first caliper nut.

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

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

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

According to a seventh aspect of the present invention, the bicycle disc brake caliper according to any one of the first to sixth aspects is constructed such that the main caliper body further includes a second through hole extending from the second mounting surface along the second mounting axis . The bicycle disc brake caliper further includes a second mounting structure that includes a second caliper bolt received in the second through hole, and a second caliper nut screwingly engaged with the second caliper bolt.

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

According to an eighth aspect of the present invention, the bicycle disc brake caliper according to the seventh aspect is constructed so 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 present invention, the bicycle disc brake caliper can be easily mounted on the bicycle frame with a simple tool.

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

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

According to a tenth aspect of the present 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 present 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 a second The second shaft part extends from the two head parts. The second shaft part has a length that passes through the bicycle frame and the second through hole to be screwed with the second caliper nut.

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

According to a twelfth aspect of the present invention, the bicycle disc brake caliper according to any one of the seventh to tenth aspects is constructed so that the second caliper bolt has a second head portion engaged with the mounting adapter, and a slave The second shaft portion from which the second head portion extends. The second shaft part has a length that passes through the mounting adapter and the second through hole to be screwed with the second caliper nut. The second head portion is configured to be configured on the mounting adapter without extending toward the bicycle frame beyond the mounting adapter.

Advantageously according to the twelfth aspect of the present invention, the installation adapter can be attached to the main caliper body by the second caliper bolt, so that the installation adapter and the main caliper body appear as a single unit.

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

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

According to the fourteenth aspect of the present disclosure, a bicycle disc brake caliper is basically configured to include a main caliper body, a piston, and a mounting adapter body. The piston is movably arranged on the main caliper body along the piston movement axis. 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 mounting portion extending from the first mounting surface along a first mounting axis that is not parallel to the piston movement axis. A hole, and a second hole extending from the second mounting surface along a second mounting axis parallel to the first mounting axis. The mounting adapter body is arranged 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 installation state where the bicycle disc brake caliper is installed on the bicycle frame, the part of the main caliper body located between the first installation surface and the second installation surface does not extend beyond the installation plane in the direction toward the bicycle frame. The first installation axis and the second installation axis are configured such that the distance between the first installation axis and the second installation axis is within a range between 30 mm and 80 mm.

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

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

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

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

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

According to a seventeenth aspect of the present invention, the bicycle disc brake caliper according to the thirteenth or sixteenth aspect is constructed such that the first through hole and the second through hole are elongated holes 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 present invention, the bicycle disc brake caliper according to the fourteenth aspect is constructed so that the adjustment direction is parallel to the piston movement axis.

Advantageously according to the eighteenth aspect of the present invention, the bicycle disc brake caliper can be adjusted relative to the bicycle frame in a direction parallel to the piston movement axis.

According to a nineteenth aspect of the present invention, the bicycle disc brake caliper according to any one of the first to eighteenth aspects is constructed so that the main caliper body further includes a hydraulic cylinder, and the hydraulic cylinder is constructed to dispose the piston therein .

Advantageously according to the nineteenth aspect of the present invention, strong and stable braking power can be obtained by using hydraulically operated disc brake calipers.

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

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

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

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

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

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

According to the twenty-third aspect of the present 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 with respect to each other.

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

In addition, other purposes, features, aspects and advantages of the disclosed bicycle disc brake caliper will become more apparent to those who are familiar with the technology from the following detailed description. The following detailed description combines the accompanying drawings to disclose bicycle disc brakes Multiple embodiments of calipers.

The selected embodiment will now be explained with reference to the drawings. For those skilled in the bicycle field from this disclosure, it will be clear that the description of the following embodiments is only provided for illustration and not to limit the present invention defined by the scope of the attached patent application and its equivalents. for purpose.

Referring first to FIG. 1, the bicycle 1 is illustrated as having a bicycle frame F, which is equipped with a bicycle disc brake caliper 10A according to a first exemplary embodiment and a bicycle disc according to a second exemplary embodiment Type brake caliper 10B. The bicycle and its various components are well known in the prior art, and therefore, the bicycle 1 and its various components will not be discussed or illustrated in detail here. Rather, the bicycle 1 and its various components will only be discussed to the extent necessary to understand 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 an inclined vertical spindle in the front portion of the frame body FB. Here, bicycle 1 is shown as a road bicycle. 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, and the front brake rotor BR1 is attached to the hub of the front wheel FW so that the front brake rotor BR1 rotates integrally with the front wheel FW. The frame body FB rotatably supports the rear wheels RW, and the rear wheels RW are rotatably supported on the rear portion of the frame body FB. The rear wheel RW has a rear brake rotor BR2, and the rear brake rotor BR2 is attached to the hub of the rear wheel RW so that the rear brake rotor BR2 rotates integrally with the rear wheel RW. The bicycle 1 can be a mountain bicycle or an urban bicycle with a flat handlebar.

As seen in Figures 1 to 3, the bicycle disc brake caliper 10A is mounted on the front fork FF of the bicycle frame F, and the bicycle disc brake caliper 10B is mounted on 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 FIGS. 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 further includes a second mounting structure 24. Furthermore, in the first embodiment, the bicycle disc brake caliper 10A is mounted on the front fork FF of the bicycle frame F via the mounting adapter 26. However, depending on the installation configuration of the front fork FF of the bicycle frame F, the installation 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 mounted to the front fork FF by a pair of fixing bolts 28. The fixing bolt 28 extends through a pair of openings 26a in the mounting adapter 26 to mount the mounting adapter 26 to the front fork FF.

With reference to Figures 2, 4 and 5, the main caliper body 20 will now be discussed in more detail. In the illustrated embodiment, the main caliper body 20 is a one-piece component. Alternatively, the main caliper body 20 can be two or more pieces attached together by bolts, adhesive, or any other suitable fastening method. In the illustrated embodiment, the main caliper body 20 is made of a metal material (for example, aluminum alloy, magnesium alloy, etc.). In addition, the material of the main caliper body 20 is not limited to metal materials.

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 part 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 configured to mount the first mounting portion 30 to the bicycle frame F and one of the mounting adapter 26. Although the first mounting portion 30 is mounted on the mounting adapter 26 which is then mounted on the bicycle frame F, the first mounting portion 30 can be directly mounted on the bicycle frame F. Similarly, as explained below, the second mounting structure 24 is constructed to mount the second mounting portion 32 to the bicycle frame F and one of the mounting adapter 26. Although the second mounting portion 32 is mounted on the mounting adapter 26 which is then mounted on the bicycle frame F, the second mounting portion 32 can be directly mounted on the bicycle frame F.

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

In the first embodiment, the main caliper body 20 further includes a first through hole 34 extending from the first mounting surface 30a along the first mounting axis A1. Preferably, the main caliper body 20 further includes a second through hole 36 extending from the second mounting surface 32a along the second mounting axis A2. The second installation axis A2 is parallel to the first installation axis A1. In the installation state in which the bicycle disc brake caliper 10A is installed in one of the bicycle frame F and the installation adapter 26, the part of the main caliper body 20 between the first installation axis A1 and the second installation axis A2 is The direction towards the bicycle frame F does not extend beyond the installation plane P1. The first installation axis A1 and the second installation axis A2 are configured such that the distance therebetween is within a range between 30 mm and 80 mm. Preferably, the distance between the first installation axis A1 and the second installation 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 that are elongated in the adjustment direction D1. The adjustment direction D1 is parallel to the piston movement 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 through hole 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 40 a is engaged with the mounting adapter 26. The first shaft portion 40b extends from the first head portion 40a. The first shaft portion 40 b has a length that passes through the mounting adapter 26 and the first through hole 34 to be screwed with the first caliper nut 42. Specifically, the first shaft portion 40 b extends through one of the pair of openings 26 b 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 configured on the mounting adapter 26 without extending beyond the mounting adapter 26 toward the bicycle frame F.

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 through hole 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 passes through the mounting adapter 26 and the second through hole 36 to be screwed with the second caliper nut 46. Specifically, the second shaft portion 44 b extends through one of the pair of openings 26 b 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 configured on the mounting adapter 26 without extending beyond the mounting adapter 26 toward the bicycle frame F.

As seen in FIGS. 2 and 4, the first mounting portion 30 includes a first anti-rotation structure 50 configured to prevent the rotation of the first caliper nut 42. The first anti-rotation structure 50 includes a first recess 50 a engaged with the first caliper nut 42. The first recess 50 a surrounds the first through hole 34. The first recess 50 a is sized such that the two opposite flat surfaces of the first recess 50 a contact the two opposite flat surfaces of the first caliper nut 42. The second mounting portion 32 includes a second anti-rotation structure 52 configured to prevent the rotation of the second caliper nut 46. The second anti-rotation structure 52 includes a second recess 52 a engaged with the second caliper nut 46. The second recess 52 a surrounds the second through hole 36. The second recess 52 a is sized such that the two opposite flat surfaces of the second recess 52 a contact the two 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 provided 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 arranged to face each other along the piston movement axis A3. The main caliper body 20 also includes a hydraulic cylinder 66, and the hydraulic cylinder 66 is configured to dispose the first piston 62 therein. The hydraulic cylinder 66 is configured such that the first through hole 34 and the second through hole 36 are at least partially aligned with the hydraulic cylinder 66 in a direction perpendicular to the adjustment direction D1. The main caliper body 20 also includes a hydraulic cylinder 68, and the hydraulic cylinder 68 is configured to have a second piston 64 disposed therein. However, the bicycle disc brake caliper 10A can be constructed with 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 further includes the brake pad 72. The brake plates 70 and 72 are movably attached to the main caliper body 20. The brake plates 70 and 72 are movably attached to the main caliper body 20 by a support pin 74 having a C-shaped clip 76. The main caliper body 20 defines a brake rotor receiving slot 78 for receiving the front brake rotor BR1. The brake plates 70 and 72 are movably provided in the brake rotor receiving slot 78 of the main caliper body 20. When the bicycle disc brake caliper 10A is in the unactuated position, the brake pads 70 and 72 are maintained separated by the biasing element 80. The front brake rotor BR1 is provided between the brake plates 70 and 72. The main caliper body 20, the brake pads 70 and 72, the support pin 74, the biasing element 80, and the pistons 62 and 64 form the basic components of a bicycle disc brake caliper.

The main caliper body 20 also includes a hydraulic fluid inlet port 82 which is attached to the hydraulic hose H1 by using a conventional hydraulic hose connector C1 provided 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 connector, as shown in FIG. 2. Alternatively, the main caliper body 20 can be constructed with a hydraulic fluid inlet port configured to receive a banjo bolt for fluidly connecting the hydraulic hose to the main caliper body 20. Here, the hydraulic cylinder barrels 66 and 68 are fluidly connected to the hydraulic fluid inlet port 82 via the inner fluid passages 84 and 86. The pistons 62 and 64 are biased away from each other by pressing the brake plates 70 and 72 outward against the biasing element 80 that pushes the pistons 62 and 64. Due to the pressure of the hydraulic fluid acting on the pistons 62 and 64 due to the user compressing the brake lever of the brake operating device, the pistons 62 and 64 are moved together. Preferably, although not shown, the main caliper body 20 also includes a fluid outlet port for receiving the discharge valve.

3, 6 and 7, the bicycle disc brake caliper 10B will now be discussed in more 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 slightly modified from the main caliper body 20 to accommodate the installation configuration of the frame body FB (ie, chainstay) of the bicycle frame F. In view of the similarity between the main caliper body 20 and the main caliper body 120, the main caliper body 120 will not be discussed in detail here.

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 part 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 the installation state where the bicycle disc brake caliper 10B is installed on the bicycle frame F, the part of the main caliper body 120 between the first mounting surface 130a and the second mounting surface 132a parallels in the direction toward the bicycle frame F Does not extend beyond the installation plane P1. Similar to the bicycle disc brake caliper 10A, the first mounting surface 130a and the second mounting surface 132a are provided on a single flat surface in the bicycle disc brake caliper 10B. However, as shown by dotted lines in FIGS. 3 and 6, the first mounting surface 130a and the second mounting surface 132a can be separated from each other so as to provide a gap therebetween.

Here, as seen in FIG. 6, the main caliper body 120 further includes a first through hole 134 extending from the first mounting surface 130a along the first mounting axis A1. Preferably, the main caliper body 120 further includes a second through hole 136 extending from the second mounting surface 132a along the second mounting axis A2. The second installation axis A2 is parallel to the first installation axis A1. In the installation state where the bicycle disc brake caliper 10B is installed on the bicycle frame F, the part of the main caliper body 120 between the first installation axis A1 and the second installation axis A2 is not in the direction facing the bicycle frame F. Extend beyond the installation plane P1. The first through hole 134 and the second through hole 136 are elongated holes in the adjustment direction D1. The adjustment direction D1 is parallel to the piston movement 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 through hole 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 underneath. The first shaft portion 140b extends from the first head portion 140a. The first shaft portion 140b has a length that passes through the bicycle frame F and the first through hole 134 to be screwed with the first caliper nut 142.

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 through hole 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 engaged with the bicycle frame F, and a second shaft portion 144b extending from the second head portion 144a. The second shaft portion 144b has a length that passes through the bicycle frame F and the second through hole 136 to be screwed with the second caliper nut 146.

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

Referring to FIG. 7, the bicycle disc brake caliper 10B further 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 installation 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 arranged to face each other along the piston movement axis A3. The main caliper body 120 further includes a hydraulic cylinder tube 166, and the hydraulic cylinder tube 166 is configured to configure the first piston 162 therein. The hydraulic cylinder 166 is configured such that the first through hole 134 and the second through hole 136 are at least partially aligned with the hydraulic cylinder 166 in a direction perpendicular to the adjustment direction D1. The main caliper body 120 also includes a hydraulic cylinder tube 168, and the hydraulic cylinder tube 168 is configured to dispose the second piston 164 therein. However, the bicycle disc brake caliper 10B can be constructed with 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 further includes two brake pads. In other words, in addition to the brake pad 170, the bicycle disc brake caliper 10B further includes a brake pad 172. The brake plates 170 and 172 are movably attached to the main caliper body 120. The brake plates 170 and 172 are movably attached to the main caliper body 120 by a support pin 174 having a C-shaped clip 176. The main caliper body 120 defines a brake rotor receiving slot 178 for receiving the front brake rotor BR1. The brake plates 170 and 172 are movably disposed in the brake rotor receiving slot 178 of the main caliper body 120. When the bicycle disc brake caliper 10B is in the unactuated position, the brake pads 170 and 172 are maintained separated by the biasing element 180. The front brake rotor BR1 is provided between the brake plates 170 and 172. The main caliper body 120, the brake pads 170 and 172, the support pin 174, the biasing element 180, and the pistons 162 and 164 form the basic components of the bicycle disc brake caliper.

The main caliper body 120 also includes a hydraulic fluid inlet port 182 which is attached to the hydraulic hose H2 by using a conventional hydraulic hose connector C2 provided 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 connector, as shown in FIG. 3. Alternatively, the main caliper body 120 can be constructed with a hydraulic fluid inlet port configured to receive a bolt for fluidly connecting the hydraulic hose to the main caliper body 120. Here, the hydraulic cylinder barrels 166 and 168 are fluidly connected to the hydraulic fluid inlet port 182 via the inner fluid passages 184 and 186. The pistons 162 and 164 are biased away from each other by pressing the brake plates 170 and 172 outward against the biasing element 180 that pushes the pistons 162 and 164. Due to the pressure of the hydraulic fluid acting on the pistons 162 and 164 due to the user compressing the brake lever of the brake operating device, the pistons 162 and 164 are moved together. Preferably, although not shown, the main caliper body 120 further includes a fluid outlet port for receiving the discharge valve.

Referring to FIGS. 8 and 9, a bicycle disc brake caliper 210A according to a third exemplary embodiment is shown. 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 is different from the bicycle disc brake caliper 10A in that the mounting adapter is integrated into the mounting adapter body as discussed below, and the bicycle disc brake caliper 210A is directly mounted on 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 similarity between the main caliper body 220 and the main caliper body 20, only the difference between the main caliper body 220 and the main caliper body 20 will be discussed in detail here.

The mounting adapter body 226 includes a first mounting portion 230 and a second mounting portion 232. The first mounting part 230 has a first mounting surface 230a. The second mounting part 232 has a second mounting surface 232a. Similar to the previous embodiment, the first mounting surface 230a and the second mounting surface 232a are provided 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 from each other.

The mounting adapter body 226 is provided on the main caliper body 220 as a single single-piece component. In other words, the mounting adapter body 226 cannot be separated 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 previous illustrative embodiment, when the bicycle disc brake caliper 210A is installed in the bicycle frame F, the main caliper body 220 is located between the first mounting surface 230a and the second mounting surface 232a. The direction towards the bicycle frame F does not extend beyond the installation plane P1.

In the third exemplary embodiment, the mounting adapter body 226 has a first hole 234 and a second hole 236. The first hole 234 includes a first hole 234a, and the second hole 236 includes a second hole 236a. The first through hole 234a and the second through hole 236a are elongated holes in the adjustment direction D1. The adjustment direction D1 is parallel to the piston movement direction A3. The first hole 234 extends from the first mounting surface 230a along the first mounting axis A1. The second hole 236 extends from the second mounting surface 232a along the second mounting axis A2. The first installation axis A1 is not parallel to the piston movement axis A3. The second installation axis A2 is parallel to the first installation axis A1. The first installation axis A1 and the second installation axis A2 are configured such that the distance therebetween is within a range between 30 mm and 80 mm. Preferably, the distance between the first installation axis A1 and the second installation 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 installation axis A1. Here, the piston movement axis A3 is perpendicular to the first installation axis A1 when viewed from a direction perpendicular to both the first installation axis A1 and the piston movement axis A3. Here, the piston 260 preferably includes two pistons configured to face each other along the piston movement axis A3. The main caliper body 220 also includes two hydraulic cylinders, and the two hydraulic cylinders are constructed so as to arrange 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 support pin 274 movably attached to the main caliper body in the same manner as in the bicycle disc brake caliper 10A Two brake pads of 220.

10 and 11, a bicycle disc brake caliper 310B according to a fourth exemplary embodiment is shown. The bicycle disc brake caliper 310B is mounted on the frame body FB (that is, chainstay) of the bicycle frame F of the bicycle 1. The bicycle disc brake caliper 310B is different from the bicycle disc brake caliper 10B in the installation of the bicycle disc brake caliper 310B to the frame body FB (ie, chainstay). The bicycle disc brake caliper 310B basically includes a main caliper body 320 and a mounting adapter body 326. In view of the similarity between the main caliper body 320 and the main caliper body 120, only the difference between the main caliper body 320 and the main caliper body 120 will be discussed in detail here. 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 part 330 has a first mounting surface 330a. The second mounting part 332 has a second mounting surface 332a. Similar to the previous embodiment, the first mounting surface 330a and the second mounting surface 332a are provided 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 from each other.

The mounting adapter body 326 is provided on the main caliper body 320 to become a single-piece component. In other words, the mounting adapter body 326 cannot be separated 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 previous illustrative embodiment, when the bicycle disc brake caliper 310B is installed on the bicycle frame F, the main caliper body 320 is located between the first mounting surface 330a and the second mounting surface 332a. The direction towards the bicycle frame F does not extend beyond the installation plane P1.

In the fourth illustrative embodiment, the mounting adapter body 326 has a first hole 334 and a second hole 336. The first hole 334 includes a first hole 334a, and the second hole 336 includes a second hole 336a. The first hole 334 extends from the first mounting surface 330a along the first mounting axis A1. The second hole 336 extends from the second mounting surface 332a along the second mounting axis A2. The first installation axis A1 is not parallel to the piston movement axis A3. The second installation axis A2 is parallel to the first installation axis A1. The first installation axis A1 and the second installation axis A2 are configured such that the distance therebetween is within a range between 30 mm and 80 mm. Preferably, the distance between the first installation axis A1 and the second installation 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 installation axis A1. Here, the piston movement axis A3 is perpendicular to the first installation axis A1 when viewed from a direction perpendicular to both the first installation axis A1 and the piston movement axis A3. Here, the piston 360 preferably includes two pistons configured to face each other along the piston movement axis A3. The main caliper body 320 also includes two hydraulic cylinders, and the two hydraulic cylinders are constructed so as to arrange the pistons therein. Similar to the previous illustrative embodiment, one of the two cylinders is configured such that the first through hole 334a and the second through hole 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 support pin 374 movably attached to the main caliper body in the same manner as in the bicycle disc brake caliper 10B Two brake pads of 320.

When understanding the scope of the present invention, the term "including" and its derivatives used herein are intended as open-ended terms that define the existence of the described features, elements, components, groups, integers, and/or steps , But does not exclude the existence of other unmentioned features, elements, components, groups, integers, and/or steps. The foregoing also applies to words with similar meanings, such as the terms "including", "have" and their derivatives. In addition, the terms "part", "section", "part", "member", or "element" when used in the singular form can have the dual meaning of a single part or multiple parts, unless stated otherwise.

The following directional terms used here are "frame-facing side", "non-frame-facing side", "forward", "backward", "front", "rear", "up", "down", " "Above", "Below", "Up", "Down", "Top", "Bottom", "Side", "Vertical", "Horizontal", "Vertical" and "Transverse", and any other similar Directional terms refer to those directions for bicycles equipped with bicycle disc brake calipers in an upright riding position. Therefore, these directional terms used to describe bicycle disc brake calipers should be interpreted relative to a bicycle equipped with a bicycle disc brake caliper in an upright riding position on a horizontal surface. The terms "left" and "right" are used to designate "right" when viewed from the rear of the bicycle with reference to the right side, and designate "left" when viewed from the rear of the bicycle with reference to the left side.

Also, it will be understood 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 only used to distinguish one component from another. Therefore, for example, without departing from the teachings of the present invention, the first component discussed above may be referred to as the second component, and vice versa. The term "attached" or "attached" as used herein covers the following configuration: by directly attaching a component to another component, the component is directly secured to the configuration of another component; by Attached to an intermediate member that is then attached to another element, the element is indirectly secured to the configuration of the other element; and the element is integrated with the other element in the configuration, that is, the element is essentially a part of the other element. This definition also applies to words with similar meanings, such as "connected", "connected", "coupled", "installed", "coupled", "fixed" and their derivatives. Finally, the terms "substantially", "approximately", and "approximately" used herein refer to a reasonable amount of variation of the modified terms so that the final result will not change significantly.

Although only selected embodiments have been selected to illustrate the present invention, it will be clear to those skilled in the art from this disclosure that without departing from the scope of the present invention as defined in the appended patent application You can make various changes and modifications here. For example, unless specifically stated otherwise, the size, shape, position, or orientation of the various components can be changed as needed and/or desired, as long as such changes do not materially affect their intended functions. Unless it is specifically stated that this is not the case, components shown as directly connected or in contact with each other can have intermediate structures disposed between them, as long as such changes do not materially affect their intended functions. The function of one element can be implemented by two elements, and vice versa, unless it is specifically stated otherwise.

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

All the advantages do not necessarily appear in a particular embodiment at the same time. Each feature different from the conventional technology, whether alone or in combination with other features, should also be regarded as a separate description of the applicant's further invention, which includes the structural and/or functional concepts embodied by such features. Therefore, the foregoing description of the exemplary embodiments of the present invention is only used for illustration, and is not intended to limit the present invention defined by the scope of the attached patent application and its equivalents.

1‧‧‧Bicycle 5‧‧‧Cross line 7‧‧‧Cross line 10‧‧‧Bicycle disc brake caliper 10A‧‧‧Bicycle disc brake caliper 10B‧‧‧Bicycle disc brake caliper 20‧‧‧Main caliper Body 22‧‧‧First installation structure 24‧‧‧Second installation structure 26‧‧‧Installation adapter 26a‧‧‧Opening 28‧‧‧Fixed bolt 30‧‧‧First installation part 30a‧‧‧First Mounting surface 32‧‧‧Second mounting portion 32a‧‧‧Second mounting surface 34‧‧‧First perforation 36‧‧‧Second perforation 40‧‧‧First caliper bolt 40a‧‧‧First head portion 40b ‧‧‧First shaft part 42‧‧‧First caliper nut 44‧‧‧Second caliper bolt 44a‧‧‧Second head part 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 ‧ ‧ brake disc 72 ‧ ‧ brake disc 74 ‧ ‧ support pin 76 ‧ ‧ C clamp 78 ‧ ‧ brake rotor receiving slot 80 ‧‧‧Biasing element 82‧‧‧Hydraulic fluid inlet port 84‧‧‧Internal fluid channel 86‧‧‧Internal fluid channel 120‧‧‧Main caliper body 122‧‧‧First installation structure 130‧‧‧First installation Section 130a‧‧‧First mounting surface 132‧‧‧Second mounting surface 132a‧‧‧Second mounting surface 134‧‧‧First perforation 136‧‧‧Second perforation 140‧‧‧First caliper bolt 140a‧‧ ‧First head part 140b‧‧‧First shaft part 142‧‧‧First caliper nut 144‧‧‧Second caliper bolt 144a‧‧‧Second head part 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 disc 172‧‧‧Brake disc 174‧‧‧Support pin 176‧‧‧C clamp 178‧‧ ‧Brake rotor receiving slot 180‧‧‧Biasing element 182‧‧‧Hydraulic fluid inlet port 184‧‧‧Internal fluid channel 186‧‧‧Internal fluid channel 210A‧‧‧Bicycle disc brake caliper 220‧‧‧Main caliper Body 226‧‧‧Mounting adapter body 228‧‧‧Fixing bolt 230‧‧‧First mounting part 230a‧‧‧First mounting surface 232‧‧‧Second mounting part 232a‧‧‧Second mounting surface 234‧ ‧‧First hole 234a‧‧‧First hole 236‧‧‧Second hole 236a‧‧‧Second hole 260‧‧‧Piston 270 Plate 274‧‧‧Support pin 310B‧‧‧Bicycle disc brake caliper 320‧‧‧Main caliper body 326‧‧‧Mounting adapter body 328‧‧‧Fixing bolt 330‧‧‧First mounting part 330a‧‧‧ The first mounting surface 332‧‧‧The second mounting part 332a‧‧‧The second mounting surface 334‧‧‧The first hole 334a‧‧‧The first hole 336‧‧‧The second hole 336a‧‧‧The second hole 360‧ ‧‧Piston 370‧‧‧Brake plate 374‧‧‧Support pin A1‧‧‧First installation axis A2‧‧‧Second installation axis A3‧‧‧Piston movement direction BD‧‧‧Brake operating device BR1‧‧‧Front Brake rotor BR2‧‧‧Rear brake rotor C1‧‧‧Hydraulic hose connector C2‧‧‧Hydraulic hose connector D1‧‧‧Adjusting direction F‧‧‧Bicycle frame FB‧‧‧Frame body FF‧‧ ‧Front fork FW‧‧‧Front wheel H‧‧‧Sink handlebar H1‧‧‧First hydraulic hose H2‧‧‧Second hydraulic hose P1‧‧‧Mounting plane RW‧‧‧Rear wheel S‧ ‧‧Seat

Refer now to the accompanying drawings that form part of this original disclosure:

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

2 is an enlarged side view of the front part of the bicycle, which shows a bicycle disc brake caliper according to the first illustrative embodiment and a bicycle disc brake caliper assembly with an adapter installed;

3 is an enlarged side view of the rear part of the bicycle, which shows a bicycle disc brake caliper according to a second illustrative embodiment;

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

5 is a cross-sectional view of the bicycle disc brake caliper according to the first illustrative embodiment as viewed along the section line 5-5 of FIG. 2;

6 is an exploded perspective view of a bicycle disc brake caliper according to the second illustrative embodiment shown in FIGS. 1 and 3;

7 is a cross-sectional view of the bicycle disc brake caliper according to the second illustrative embodiment as viewed along the section line 7-7 of FIG. 2;

8 is an enlarged side view of the front part of the bicycle, which shows the bicycle disc brake caliper according to the third illustrative embodiment;

9 is an enlarged partial view of the body of the mounting adapter of the bicycle disc brake caliper depicted in FIG. 8;

10 is an enlarged side view of the rear part of the bicycle, which shows a bicycle disc brake caliper according to a fourth illustrative embodiment; and

Fig. 11 is an enlarged partial view of the mounting adapter body of the bicycle disc brake caliper depicted in Fig. 10.

5‧‧‧Hatching

10‧‧‧Bike disc brake caliper

20‧‧‧Main caliper body

22‧‧‧First installation structure

24‧‧‧Second installation structure

26‧‧‧Install the adapter

26a‧‧‧Open

28‧‧‧Fixed bolt

30‧‧‧The first installation part

30a‧‧‧First mounting surface

32‧‧‧Second installation part

32a‧‧‧Second mounting surface

40‧‧‧First caliper bolt

42‧‧‧First caliper nut

44‧‧‧Second caliper bolt

46‧‧‧Second caliper nut

70‧‧‧Brake plate

A1‧‧‧The first installation axis

A2‧‧‧Second installation axis

A3‧‧‧Piston movement direction

BR1‧‧‧Front brake rotor

C1‧‧‧Hydraulic hose connector

FF‧‧‧Fork

H1‧‧‧The first hydraulic hose

P1‧‧‧Installation plane

Claims (23)

A bicycle disc brake caliper, comprising: a main caliper body, which includes a first mounting portion with a first mounting surface, a second mounting portion with a second mounting surface, and a first mounting axis from the first mounting surface The extended first perforation; 　　 first mounting structure, which is constructed to mount the first mounting portion to one of the bicycle frame and the mounting adapter; and the piston, which is movably disposed along the piston movement axis On the main caliper body, the piston movement axis is not parallel to the first mounting axis; 　　 where the first mounting surface and the second mounting surface define a mounting plane, and the bicycle disc brake caliper is mounted on the bicycle frame And the installation state of the one of the installation adapters, the part of the main caliper body located between the first installation surface and the second installation surface does not extend beyond the installation in the direction toward the bicycle frame Plane, "The first mounting structure includes a first caliper bolt received in the first through hole, and a first caliper nut screwingly engaged with the first caliper bolt. According to the bicycle disc brake caliper described in the first item of the scope of patent application, the first mounting portion includes a first anti-rotation structure configured to prevent the rotation of the first caliper nut. The bicycle disc brake caliper according to the second item of the scope of patent application, wherein the first anti-rotation structure includes a first recess engaged with the first caliper nut. The bicycle disc brake caliper described in item 3 of the scope of patent application, wherein 　　 the first recess surrounds the first perforation. The bicycle disc brake caliper according to any one of items 1 to 4 in the scope of the patent application, wherein the first caliper bolt has a first head portion engaged with the bicycle frame, and a second head portion An extended first shaft portion, the first shaft portion having a length that passes through the bicycle frame and the first through hole to be screwed with the first caliper nut. The bicycle disc brake caliper according to any one of items 1 to 4 in the scope of the patent application, wherein the first caliper bolt has a first head part engaged with the mounting adapter, and a second head A partially extended first shaft portion, the first shaft portion having a length that penetrates the mounting adapter and the first through hole to be threadedly engaged with the first caliper nut, and the first head portion is constructed The configuration is configured on the mounting adapter without extending beyond the mounting adapter toward the bicycle frame. The bicycle disc brake caliper according to any one of items 1 to 4 in the scope of the patent application, wherein the main caliper body further includes a second perforation extending from the second mounting surface along a second mounting axis, and the bicycle The disc brake caliper also includes a second mounting structure that includes a second caliper bolt received in the second through hole, and a second caliper nut screwingly engaged with the second caliper bolt. According to the bicycle disc brake caliper described in item 7 of the scope of patent application, the second mounting portion includes a second anti-rotation structure configured to prevent the rotation of the second caliper nut. The bicycle disc brake caliper described in item 8 of the scope of the patent application, wherein 　　 the second anti-rotation structure includes a second recess engaged with the second caliper nut. The bicycle disc brake caliper described in item 9 of the scope of patent application, wherein 　　 the second recess surrounds the second perforation. The bicycle disc brake caliper according to claim 7, wherein the second caliper bolt has a second head part engaged with the bicycle frame, and a second shaft extending from the second head part In part, the second shaft portion has a length that passes through the bicycle frame and the second through hole to be screwed with the second caliper nut. The bicycle disc brake caliper described in 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, the second shaft portion has a length that passes through the mounting adapter and the second through hole to be screw-engaged with the second caliper nut, and the second head portion is constructed so as not to face the bicycle The frame is configured on the mounting adapter with the frame extending beyond the mounting adapter. The bicycle disc brake caliper described in item 7 of the scope of patent application, wherein 　　 the second installation axis is parallel to the first installation axis. A bicycle disc brake caliper, comprising: a 　　 main caliper body; a 　　 piston, which is movably arranged on the main caliper body along a piston movement axis; and a mounting adapter body, which includes a first mounting surface Mounting part, a second mounting part having a second mounting surface, a first hole extending from the first mounting surface along a first mounting axis that is not parallel to the piston movement axis, and from the second mounting surface along and A second hole extending from the first mounting axis parallel to the second mounting axis; 　　 where the mounting adapter body is arranged on the main caliper body to become a single piece member, 　　 the first mounting surface and the second mounting The surface defines an installation plane, and when the bicycle disc brake caliper is installed in the bicycle frame, the part of the main caliper body located between the first installation surface and the second installation surface faces the bicycle frame The direction does not extend beyond the installation plane, 　　 the first installation axis and the second installation axis are configured such that the distance between the first installation axis and the second installation axis is between 30 mm and 80 mm In the range. The bicycle disc brake caliper according to claim 14 of the patent application, wherein 　　 the first hole includes a first threaded hole, and 　　 the second hole includes a second threaded hole. The bicycle disc brake caliper according to the 14th patent application, wherein 　　 the first hole includes a first hole, and 　　 the second hole includes a second hole. The bicycle disc brake caliper described in item 16 of the scope of the patent application, wherein 　　 the first perforation and the second perforation are elongated holes in the adjustment direction. The bicycle disc brake caliper described in item 17 of the scope of patent application, wherein 　　 the adjustment direction is parallel to the piston movement axis. According to the bicycle disc brake caliper described in any one of items 1 to 4 and 14 to 18 in the scope of the patent application, the main caliper body further includes a hydraulic cylinder, and the hydraulic cylinder is configured to dispose the piston therein. For the bicycle disc brake caliper described in any one of items 1 to 4 and 14 to 18 in the scope of the patent application, the piston includes a first piston and a second piston. The bicycle disc brake caliper according to claim 20, wherein 　　 the first piston and the second piston are arranged to face each other along the piston movement axis. The bicycle disc brake caliper described in any one of items 1 to 4 and 14 to 18 in the scope of the patent application, wherein the first mounting surface and the second mounting surface are provided on a single flat surface. The bicycle disc brake caliper described in any one of items 1 to 4 and 14 to 18 in the scope of patent application, wherein "the first mounting surface and the second mounting surface are separated from each other."

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