Bicycle brake caliper assembly

Abstract

Bicycle brake caliper assembly (100, 400, 500), comprising: a brake caliper (110, 410, 510) configured to apply a braking force to a brake disc (50) configured to be rotatable about an axis of rotation (A1); a base component (120, 420, 520) configured to be coupled to the brake caliper (110, 410, 510) and secured to the bicycle frame (14) such that the relative position between the rotational axis (A1) of the brake disc (50) and the brake caliper (110, 410, 510) is adjustable in a radial direction (D1) of the brake disc (50), wherein the base member (120) comprises a frame-side contact surface (129), and wherein the frame-side contact surface (129) is configured to contact the bicycle frame (14) in a state in which the base member (120) is attached to the bicycle frame (14), wherein the base component (120, 420, 520) comprises a main body (121), a first end portion (122) and a second end portion (123), and the main body (121), the first end portion (122) and the second end portion (123) are provided integrally as a one-piece unitary component, wherein the first end portion (122) is arranged at one end of the main body (121) and the second end portion (123) is arranged at the other end of the main body (121), wherein the base member (120, 420, 520) comprises a coupling portion (131, 530) to which the brake caliper (110, 410, 510) is coupled, the base component (120, 420, 520) is attached to the bicycle frame (14) with a first orientation or a second orientation and the base member (120, 420, 520) is configured such that a first position of the coupling portion (131, 530) in a state where the base member (120, 420, 520) is attached to the bicycle frame (14) with the first orientation differs from a second position of the coupling portion (131, 530) in a state where the base member (120, 420, 520) is attached to the bicycle frame (14) with the second orientation in the radial direction (D1); a first coupling member (141, 541) configured to couple the brake caliper (110, 410, 510) to the base member (120, 420, 520), wherein the coupling portion (131, 530) comprises a first through-hole (132, 532) through which the first coupling component (141, 541) extends; and a second coupling member (145, 545) configured to couple the brake caliper (110, 410, 510) to the base member (120, 420, 520), wherein the coupling portion (131, 530) comprises a second through-hole (136, 536) through which the second coupling component (145, 545) extends and which is arranged at a distance from the first through-hole (132, 532) in the radial direction, wherein the first through-hole (132) and the second through-hole (136) are provided on the main body (121), wherein the basic component (120, 420, 520) a first fastening through-hole (124) through which a first fastening component (151) extends, whereby the base component (120, 420, 520) is fastened to the bicycle frame (14), and a second fastening through-hole (125) through which a second fastening component (155) extends, whereby the base component (120, 420, 520) is fastened to the bicycle frame (14), wherein the first fastening through-hole (124) is provided at the first end portion (122) and the second fastening through-hole (125) is provided at the second end portion (123), and wherein the second fastening through-hole (125) is spaced apart from the first fastening through-hole (124) in the radial direction, and the first through-hole (132, 532) and the second through-hole (136, 536) are arranged between the first fastening through-hole (124) and the second fastening through-hole (125), wherein the distance between the center (C11) of the first fastening through-hole (124) and the center (C12) of the first through-hole (132, 532) is greater than the distance between the center (C14) of the second fastening through-hole (125) and the center (C13) of the second through-hole (136, 536), wherein the brake calliper (110) comprises a first threaded bore (117) and a second threaded bore (118), the first coupling component (141) comprises a first external thread (142), the second coupling component (145) comprises a second external thread (146), in a state where the base component (120) is attached to the bicycle frame (14) with the first orientation, the first external thread (142) is screwed through the first through hole (132) into the first threaded bore (117) and the second external thread (146) is screwed through the second through hole (136) into the second threaded bore (118), and in a state where the base member (120) is attached to the bicycle frame (14) with the second orientation, the first external thread (142) is screwed through the second through hole (136) into the first threaded bore (117) and the second external thread (146) is screwed through the first through hole (132) into the second threaded bore (118).

Description

[0001] The present invention relates to a bicycle brake caliper assembly.

[0002] Cycling is becoming an increasingly popular form of recreation and a means of transportation. Furthermore, cycling has become a very popular competitive sport for both amateurs and professionals. Whether the bicycle is used for recreation, transportation, or competition, the bicycle industry is constantly improving the various components of the bicycle. One component that has undergone extensive redesign is the bicycle braking system. More specifically, in recent years, bicycles have been equipped with disc brakes. Such disc brakes are shown, for example, in EP 2 444 309 A1 and DE 603 ​​12 359 T2.

[0003] A bicycle brake caliper assembly with an adjustable brake caliper is known, for example, from DE 600 00 637 T2. Here, the brake caliper can be attached to the bicycle frame in one orientation and its position relative to the brake disc can be adjusted in this orientation.

[0004] Based on the prior art, the invention seeks to provide an improved bicycle brake caliper assembly. This object is achieved according to the invention with a bicycle brake caliper assembly having the features of patent claim 1. Advantageous further developments of the invention are described in the subclaims.

[0005] According to a first aspect of the present invention, a bicycle brake caliper assembly comprises a brake caliper and a base member. The brake caliper is configured to apply a braking force to a brake rotor configured to rotate about a rotation axis. The base member is configured to be coupled to the brake caliper and fixed to the bicycle frame such that the relative position between the rotation axis of the brake rotor and the brake caliper is adjustable in a radial direction of the brake rotor. The bicycle brake caliper assembly is configured such that the base member includes a frame-side contact surface. The frame-side contact surface is configured to contact the bicycle frame in a state in which the base member is fixed to the bicycle frame. The base member includes a main body, a first end portion, and a second end portion.The main body, the first end portion, and the second end portion are integrally provided as a one-piece unitary component. The first end portion is arranged at one end of the main body. The second end portion is arranged at the other end of the main body. The bicycle brake caliper assembly is configured such that the base member includes a coupling portion to which the brake caliper is coupled. The base member is fixed to the bicycle frame with a first orientation or a second orientation. The base member is configured such that a first position of the coupling portion in a state where the base member is fixed to the bicycle frame with the first orientation differs in the radial direction from a second position of the coupling portion in a state where the base member is fixed to the bicycle frame with the second orientation.The bicycle brake caliper assembly includes a first coupling member and a second coupling member. The first coupling member is configured to couple the brake caliper to the base member. The second coupling member is configured to couple the brake caliper to the base member. The coupling portion includes a first through-hole through which the first coupling member passes. The coupling portion includes a second through-hole through which the second coupling member passes and which is spaced apart from the first through-hole in the radial direction. The first through-hole and the second through-hole are provided on the main body.The bicycle brake caliper assembly is configured such that the base member includes a first fastening through-hole through which a first fastening member passes, thereby fastening the base member to the bicycle frame, and a second fastening through-hole through which a second fastening member passes, thereby fastening the base member to the bicycle frame. The first fastening through-hole is provided at the first end portion, and the second fastening through-hole is provided at the second end portion. The second fastening through-hole is spaced apart from the first fastening through-hole in the radial direction, and the first through-hole and the second through-hole are arranged between the first fastening through-hole and the second fastening through-hole.The bicycle brake caliper assembly is configured such that the distance between the center of the first mounting through-hole and the center of the first through-hole is greater than the distance between the center of the second mounting through-hole and the center of the second through-hole. The brake caliper includes a first threaded hole and a second threaded hole. The first coupling member includes a first external thread. The second coupling member includes a second external thread. In a state where the base member is attached to the bicycle frame with the first orientation, the first external thread is screwed into the first threaded hole through the first through-hole, and the second external thread is screwed into the second threaded hole through the second through-hole.In a state where the base member is fixed to the bicycle frame with the second orientation, the first external thread is screwed through the second through hole into the first threaded hole, and the second external thread is screwed through the first through hole into the second threaded hole.

[0006] According to a second aspect of the present invention, the bicycle brake caliper assembly according to the first aspect is configured such that the brake caliper includes a brake caliper fluid passage, and such that the first coupling member provides a fluid passage configured to communicate with the brake caliper fluid passage.

[0007] According to a third aspect of the present invention, the bicycle brake caliper assembly according to the first aspect is configured such that the brake caliper includes a brake caliper fluid passage. The base member includes an additional through-hole through which a fluid communication member, which is in fluid communication with the brake caliper fluid passage, passes. The additional through-hole is arranged at a middle position between the first through-hole and the second through-hole.

[0008] According to a fourth aspect of the present invention, the bicycle brake caliper assembly according to the first aspect is configured such that the first fixing through-hole and the second fixing through-hole extend in the axial direction of the brake disc in a state where the base member is fixed to the bicycle frame.

[0009] The invention and many of its attendant advantages will be more fully appreciated when better understood by reference to the following detailed description taken in conjunction with the accompanying drawings. is Fig. 1 is a left side view of the front portion of a bicycle having a bicycle brake caliper assembly according to a first embodiment of the present invention; is Fig. 2 is a partial side view of a bicycle disc brake device including the bicycle brake caliper assembly according to the first embodiment of the present invention; is Fig. 3 a schematic structural representation of the Fig. 2 illustrated bicycle disc brake device; is Fig. 4 a perspective exploded view of the Fig. 2 illustrated bicycle brake caliper assembly (first position); is Fig. 5 a perspective exploded view of the Fig. 2 illustrated bicycle brake caliper assembly (first position); is Fig. 6A is a rear view of the Fig. 5 shown basic component; is Fig. 6B is a partial cross-sectional view of the base component along the line VIB-VIB of Fig. 6C; is Fig. 6C the front view of the Fig. 5 shown basic component; is Fig. 7 a perspective exploded view of the Fig. 2 illustrated bicycle brake caliper assembly (second position); is Fig. 8A a side view of the Fig. 4 illustrated bicycle brake caliper assembly (first position); is Fig. 8B a side view of the Fig. 7 illustrated bicycle brake calliper assembly (second position); is Fig. 9 is an exploded perspective view of the bicycle brake caliper assembly according to a second embodiment not belonging to the invention (first position); is Fig. 10 is an exploded perspective view of the bicycle brake caliper assembly according to a second embodiment not belonging to the invention (second position); is Fig. 11A is a rear view of the Fig. 10 shown basic component; is Fig. 11B is a partial cross-sectional view of the basic component along the line XIB-XIB of Fig. 11C; is Fig. 11C the front view of the Fig. 10 shown basic component; is Fig. 12A a side view of the Fig. 9 illustrated bicycle brake caliper assembly (first position); is Fig. 12B a side view of the Fig. 10 illustrated bicycle brake caliper assembly (second position); is Fig. 13 is an exploded perspective view of the bicycle brake caliper assembly according to a third embodiment not belonging to the invention; is Fig. 14A is a rear view of the Fig. 13 shown basic component; is Fig. 14B is a partial cross-sectional view of the basic component along the line XIVB-XIVB of Fig. 14C; is Fig. 14C the front view of the Fig. 13 shown basic component; is Fig. 15A a side view of the Fig. 13 illustrated bicycle brake caliper assembly (first position); is Fig. 15B a side view of the Fig. 13 illustrated bicycle brake caliper assembly (second position); is Fig. 16 is an exploded perspective view of the bicycle brake caliper assembly according to a fourth embodiment of the present invention; is Fig. 17 is an exploded perspective view of the bicycle brake caliper assembly according to the fourth embodiment of the present invention; is Fig. 18A is a rear view of the Fig. 17 shown basic component; is Fig. 18B is a partial cross-sectional view of the basic component along the line XVIIIB-XVIIIB of Fig. 18C; is Fig. 18C the front view of the Fig. 17 shown basic component; is Fig. 19 is a partial cross-sectional view of a fluid communication component and its Fig. 16 depicted environment; is Fig. 20A a side view of the Fig. 16 illustrated bicycle brake caliper assembly (first position); is Fig. 20B a side view of the Fig. 16 illustrated bicycle brake caliper assembly (second position); is Fig. 21 is an exploded perspective view of the bicycle brake caliper assembly according to a fifth embodiment of the present invention; is Fig. 22 is an exploded perspective view of the bicycle brake caliper assembly according to the fifth embodiment of the present invention; is Fig. 23A is a rear view of the Fig. 21 shown basic component; is Fig. 23B is a partial cross-sectional view of the basic component along the line XXIIIB-XXIIIB of Fig. 23C; is Fig. 23C the front view of the Fig. 21 shown basic component; is Fig. 24 a partial cross-sectional view of a first coupling component and its Fig. 21 depicted environment; is Fig. 25A a side view of the Fig. 21 illustrated bicycle brake caliper assembly (first position); is Fig. 25B a side view of the Fig. 21 illustrated bicycle brake caliper assembly (second position); is Fig. 26 is an exploded perspective view of the bicycle brake caliper assembly according to a sixth embodiment not belonging to the invention; and is Fig. 27 is an exploded perspective view of the bicycle brake caliper assembly according to a seventh embodiment not belonging to the invention.

[0010] The embodiments will now be described with reference to the accompanying drawings, wherein like reference numerals designate corresponding or identical elements in the various drawings.

[0011] At the beginning, it includes Fig. 1, which shows a first embodiment of the present invention, a bicycle 10 includes a bicycle frame 14, a front wheel 17, a rear wheel (not shown), a drive train (not shown), and a bicycle disc brake device 12. The bicycle frame 14 includes a main frame 13 and a front fork 40. The front wheel 17 is rotatably supported by the front fork 40. The handlebar 15 ( Fig. 2) is attached to the front fork shaft through the handlebar stem. The rear wheel is rotatably supported by the rear end of the main frame 13. The bicycle disc brake device 12 includes a bicycle brake caliper assembly 100, a brake disc 50, and a brake actuating mechanism 16. In the first embodiment, the following directional expressions "front," "rear," "forward," "backward," "left," "right," "up," and "down," as well as other similar directional expressions, refer to those directions determined with respect to a cyclist sitting on the saddle (not shown) of a bicycle and facing the handlebar 15. Consequently, when used to describe the bicycle brake caliper assembly 100, these expressions should be interpreted with respect to a bicycle equipped with the bicycle brake caliper assembly 100 being used in an upright sitting position on a horizontal surface.These definitions may also be applied to other embodiments.

[0012] Related to Fig. 2, the bicycle brake caliper assembly 100 is mounted on the front fork 40 of the bicycle frame 14. It should be understood that the bicycle brake caliper assembly 100 can also be mounted on the main frame 13 for the rear wheel. The bicycle brake caliper assembly 100 includes a brake caliper 110 and a base member 120. The brake caliper 110 is coupled to the base member 120. The base member 120 is secured to the front fork 40 by a first attachment member 151 and a second attachment member 155. The brake actuation mechanism 16 is configured to actuate the bicycle brake caliper assembly 100 to exert a braking force on the brake rotor 50. The brake disc 50 is mounted on the front wheel hub body 60 such that it is integrally rotatable about a rotation axis A1 with the front wheel hub body 60 and the front wheel 17. Brake discs with different outer diameters can be mounted on the front wheel hub body 60.The bicycle brake caliper assembly 100 is configured such that the relative position between the rotation axis A1 and the brake caliper 110 is adjustable in the radial direction D1 of the brake disc 50.

[0013] As in Fig. 2, the brake actuation mechanism 16 includes a master cylinder 24, a master piston 34, a clamp 26, a brake lever 28, and a hydraulic fluid reservoir 36. The brake actuation mechanism 16 is mounted to the handlebar 15 via the clamp 26. The master cylinder 24 includes a master cylinder bore 32 in which the master piston 34 is movably disposed. The brake lever 28 is pivotally coupled to the master cylinder 24 for actuating the bicycle brake caliper assembly 100. The brake lever 28 is operatively coupled to the master piston 34 such that the master piston 34 is movable within the master cylinder bore 32 in response to pivotal movement of the brake lever 28. The hydraulic fluid reservoir 36 is in fluid communication with the master cylinder bore 32. The master cylinder 24 and the hydraulic fluid reservoir 36 contain hydraulic fluid such as mineral oil.The master cylinder 24 has an outlet 38 through which the bicycle brake caliper assembly 100 is supplied with hydraulic fluid via a hydraulic brake hose 86 and a banjo 87.

[0014] Related to Fig. 3, the brake caliper 110 is configured to apply a braking force to the brake disc 50, which is configured to rotate about the rotation axis A1. The brake caliper 110 includes a housing 112, two pistons 74, and two brake pads 76. The brake pads 76 are coupled to a biasing member (not shown). The pistons 74 are arranged to urge the brake pads 76 toward the brake disc 50. The housing 112 includes two cylinders 57 and a caliper fluid passage 58. The pistons 74 are arranged in the cylinders 57 so as to be movable in the axial direction D2 of the brake disc 50. The fluid chambers 59 are defined by the pistons 74 and the cylinders 57. The fluid chambers 59 are in fluid communication with the brake caliper fluid channel 58. The brake caliper fluid channel 58 is in fluid communication with the master cylinder 24 via the hydraulic brake hose 86.

[0015] When the brake lever 28 is actuated, the master piston 34 in the master cylinder 24 moves in response to the pivoting movement of the brake lever 28, allowing pressure fluid to move through the hydraulic brake hose 86 connected to the brake caliper 110. The pressurized oil moves the pistons 74, which press the brake pads 76 against the brake disc 50, thereby exerting the braking force on the brake disc 50.

[0016] Related to Fig. 4, the bicycle brake caliper assembly 100 is configured to be attached to the front fork 40 of the bicycle frame 14. The bicycle brake caliper assembly 100 includes the brake caliper 110, the base member 120, a first coupling member 141, and a second coupling member 145. Fig. In the brake caliper 110 shown in Figure 4, parts other than the housing 112 (for example, the brake pads 76 and the pistons 74) have been omitted. The brake caliper 110 is coupled to the base member 120 by the first coupling member 141 and the second coupling member 145. The base member 120 is fixed to the front fork 40 by the first fixing member 151 and the second fixing member 155. The brake caliper 110 and the base member 120 are made of a metallic material such as an aluminum alloy or iron. As discussed below, the base member 120 is configured to be coupled to the brake caliper 110 and fixed to the bicycle frame 14 (the front fork 40) such that the relative position between the rotational axis A1 of the brake disc 50 and the brake caliper 110 is adjustable in the radial direction D1 of the brake disc 50.

[0017] The base member 120 extends in the longitudinal direction D3. The longitudinal direction D3 of the base member 120 is in a state where the base member 120 is attached to the front fork 40 ( Fig. 1), substantially parallel to the radial direction D1 of the brake disc 50. That is, the base member 120 extends in the radial direction D1 in a state where the base member 120 is fixed to the front fork 40.

[0018] The base member 120 includes a main body 121, a first end portion 122, and a second end portion 123. In the first embodiment, the main body 121, the first end portion 122, and the second end portion 123 are integrally provided as a one-piece unitary component. The main body 121 is plate-shaped and extends in the longitudinal direction D3 (in the radial direction D1). The first end portion 122 is opposite the second end portion 123 with respect to the main body 121. The first end portion 122 is located at one end of the main body 121. The second end portion 123 is located at the other end of the main body 121. The base member 120 includes a first fastening through-hole 124 and a second fastening through-hole 125. The first fastening through-hole 124 is provided at the first end portion 122. The second fastening through hole 125 is provided at the second end portion 123.

[0019] The base member 120 includes a caliper-side contact surface 128. The caliper-side contact surface 128 is flat and provided on the main body 121. The caliper-side contact surface 128 is configured to contact the brake caliper 110 in a state where the base member 120 is coupled to the brake caliper 110.

[0020] The base member 120 further includes a coupling portion 131 to which the brake caliper 110 is coupled. The coupling portion 131 includes a first through-hole 132 and a second through-hole 136. The first through-hole 132 and the second through-hole 136 are provided on the main body 121. The second through-hole 136 is spaced apart from the first through-hole 132 in the radial direction D1 (in the longitudinal direction D3). The second fastening through-hole 125 is spaced apart from the first fastening through-hole 124 in the radial direction D1 (in the longitudinal direction D3). The first through-hole 132 and the second through-hole 136 are located between the first fastening through-hole 124 and the second fastening through-hole 125.

[0021] The first coupling component 141 is configured to couple the brake caliper 110 to the base component 120. The second coupling component 145 is configured to couple the brake caliper 110 to the base component 120. In Fig. 4, the first coupling member 141 passes through the first through-hole 132, and the second coupling member 145 passes through the second through-hole 136, in a state where the base member 120 is coupled to the brake caliper 110 with the first coupling member 141 and the second coupling member 145. The first coupling member 141 is a countersunk head screw and includes a first external thread 142 and a first countersunk head 143. The second coupling member 145 is a countersunk head screw and includes a second external thread 146 and a second countersunk head 147. In the first embodiment, the second coupling member 145 has substantially the same shape as the first coupling member 141. It should be understood that the second coupling member 145 has a different shape than the first coupling member 141.

[0022] In a state where the base member 120 is coupled to the brake caliper 110 by the first coupling member 141 and the second coupling member 145, the base member 120 is fixed to a fixing portion 41 of the front fork 40 by the first fixing member 151 and the second fixing member 155.

[0023] The mounting portion 41 of the front fork 40 is recessed and includes a support surface 42 and threaded holes 43 and 44. The support surface 42 is configured to contact the base member 120. The threaded holes 43 and 44 are provided on the support surface 42. The base member 120 is arranged in the mounting portion 41 in a state where the base member 120 is fixed to the front fork 40 by the first fixing member 151 and the second fixing member 155.

[0024] The first fastening component 151 is a hexagon socket screw and comprises a first external thread 152 and a first hexagon socket head 153. In Fig. 4, the first external thread 152 is screwed through the first fastening through hole 124 into the threaded hole 43, and the first end portion 122 of the base member 120 is screwed to the fastening portion 41 of the front fork 40 with the first fastening member 151.

[0025] The second fastening component 155 is a hexagon socket screw and comprises a second external thread 156 and a second hexagon socket head 157. In Fig. 4, the second external thread 156 is screwed through the second fastening through hole 125 into the threaded bore 44, and the second end portion 123 of the base member 120 is screwed to the fastening portion 41 of the front fork 40 with the second fastening member 155.

[0026] Related to Fig. 5, the housing 112 of the brake caliper 110 includes a connection opening 115, a vent opening 116, a slot 114, and a mounting back surface 119. The connection opening 115 and the vent opening 116 are in fluid communication with the brake caliper fluid channel 58 ( Fig. 3). The hydraulic brake hose 86 is connected to the connection opening 115 via the banjo 87 ( Fig. 2). A bleed nipple (not shown) is coupled to the bleed opening 116. The slot 114 extends such that an outer friction portion of the brake disc is disposed in the slot 114. The mounting back surface 119 is flat and configured to contact the caliper-side contact surface 128 ( Fig. 4) of the basic component 120.

[0027] The brake caliper 110 further includes a first threaded hole 117 and a second threaded hole 118. The first threaded hole 117 and the second threaded hole 118 are provided on the mounting back surface 119. The distance between the first threaded hole 117 and the second threaded hole 118 is substantially the same as the distance between the first through hole 132 and the second through hole 136. Fig. 5, the first external thread 142 of the first coupling component 141 is screwed into the first threaded bore 117, and the second external thread 146 of the second coupling component 145 is screwed into the second threaded bore 118.

[0028] The base member 120 includes a frame-side contact surface 129, which is arranged on the opposite side of the brake caliper 110 relative to the base member 120. The frame-side contact surface 129 is flat and provided on the main body 121, the first end portion 122, and the second end portion 123. The frame-side contact surface 129 is configured to contact the support surface 42 ( Fig. 4) the front fork 40 is contacted.

[0029] As in Fig. 5, the first through-hole 132 includes a first tapered surface 133 provided on the frame-side contact surface 129. The second through-hole 136 includes a second tapered surface 137 provided on the frame-side contact surface 129. In a state where the base member 120 is coupled to the brake caliper 110 via the first coupling member 141, the first countersunk head 143 of the first coupling member 141 contacts the first tapered surface 133 of the first through-hole 132 and is disposed in a space defined by the first tapered surface 133, preventing the first countersunk head 143 from protruding beyond the frame-side contact surface 129 toward the front fork 40.In a state where the base member 120 is coupled to the brake caliper 110 with the second coupling member 145, the second countersunk head 147 of the second coupling member 145 contacts the second tapered surface 137 of the second through hole 136 and is arranged in a space defined by the second tapered surface 137, which prevents the second countersunk head 147 from protruding beyond the frame-side contact surface 129 toward the front fork 40.

[0030] Related to the Fig. 6A and Fig. 6B, the first through-hole 132 has substantially the same shape as the second through-hole 136. The first tapered surface 133 has substantially the same shape as the second tapered surface 137. The first tapered surface 133 is provided at an end portion of the first through-hole 132. The second tapered surface 137 is provided at an end portion of the second through-hole 136.

[0031] As in Fig. As shown in Figure 6A, the first fastening through-hole 124 and the second fastening through-hole 125 extend in the transverse direction D4 of the base member 120. The transverse direction D4 is perpendicular to the longitudinal direction D3 of the base member 120 and defined along the saddle-side contact surface 128 and the frame-side contact surface 129. The transverse direction D4 is substantially parallel to the axial direction D2 of the brake disc 50 in a state where the base member 120 is attached to the front fork 40 of the bicycle frame 14. That is, the first fastening through-hole 124 and the second fastening through-hole 125 extend in the axial direction D2 of the brake disc 50 in a state where the base member 120 is attached to the bicycle frame 14.Since the first mounting through-hole 124 and the second mounting through-hole 125 extend in the axial direction D2, the relative position between the bicycle brake caliper assembly 100 and the brake disc 50 is adjustable in the axial direction D2. It should be understood that the first mounting through-hole 124 and the second mounting through-hole 125 may be circular through-holes.

[0032] Related to Fig. 6B, the thickness of the first end portion 122 is substantially the same as the thickness of the second end portion 123. The thickness T1 of the main body 121 is greater than the thickness T2 of the first end portion 122 and the second end portion 123.

[0033] Related to Fig. 6C, the distance L11 between the center C11 of the first fastening through-hole 124 and the center C12 of the first through-hole 132 is different from the distance L12 between the center C14 of the second fastening through-hole 125 and the center C13 of the second through-hole 136. Specifically, the distance L11 between the center C11 of the first fastening through-hole 124 and the center C12 of the first through-hole 132 is greater than the distance L12 between the center C14 of the second fastening through-hole 125 and the center C13 of the second through-hole 136. The distances L11 and L12 are smaller than the distance L13 between the center C12 of the first through-hole 132 and the center C13 of the second through-hole 136. That is, the base member 120 has an asymmetrical Shape. Since the distance L11 is different from the distance L12, turning the base member 120 can change the position of the coupling portion 131 in the radial direction D1.

[0034] Related to the Fig. 4 and Fig. 7, the base component 120 is attached to the bicycle frame 14 with a first orientation or a second orientation. Fig. 4 illustrates the base member 120 arranged to be attached to the front fork 40 in the first orientation. Fig. Figure 7 illustrates the base member 120 arranged to be attached to the front fork 40 in the second orientation,

[0035] As in Fig. 4, the first end portion 122 is arranged in an upper position, and the second end portion 123 is arranged in a lower position in a state where the base member 120 is fixed to the front fork 40 with the first orientation. As shown in Fig. As shown in Figure 7, in a state where the base member 120 is attached to the front fork 40 in the second orientation, the second end portion 123 is positioned in an upper position and the first end portion 122 is positioned in a lower position. That is, the base member 120 positioned in the second orientation is reversed in the radial direction D1 relative to the base member 120 positioned in the first orientation.

[0036] As in Fig. As seen in Fig. 4, in a state where the base member 120 is attached to the bicycle frame 14 with the first orientation, the first external thread 142 of the first coupling member 141 is screwed through the first through hole 132 into the first threaded bore 117, and the second external thread 146 of the second coupling member 145 is screwed through the second through hole 136 into the second threaded bore 118. The first fastening member 151 passes through the first fastening through hole 124, thereby attaching the base member 120 to the bicycle frame 14. The second fastening member 155 passes through the second fastening through hole 125, thereby attaching the base member 120 to the bicycle frame 14. The first end portion 122 of the base component 120 is screwed to the first fastening component 151 and the threaded hole 43 on the fastening portion 41 of the front wheel fork 40.The second end portion 123 of the base component 120 is screwed to the second fastening component 155 and the threaded hole 44 on the fastening portion 41 of the front wheel fork 40.

[0037] As in Fig. As seen in Fig. 7, in a state where the base member 120 is attached to the bicycle frame 14 with the second orientation, the first external thread 142 is screwed through the second through hole 136 into the first threaded bore 117, and the second external thread 146 is screwed through the first through hole 132 into the second threaded bore 118. The first fastening member 151 passes through the second fastening through hole 125, thereby attaching the base member 120 to the bicycle frame 14. The second fastening member 155 passes through the first fastening through hole 124, thereby attaching the base member 120 to the bicycle frame 14. The second end portion 123 of the base member 120 is screwed to the attachment portion 41 of the front fork 40 with the first fastening member 151 and the threaded bore 43.The first end portion 122 of the base component 120 is screwed to the second fastening component 155 and the threaded hole 44 on the fastening portion 41 of the front wheel fork 40.

[0038] Fig. 8A is a side view of the bicycle brake caliper assembly 100 in a state where the base member 120 is attached to the front fork 40 with the first orientation. Fig. 8B is a side view of the bicycle brake caliper assembly 100 in a state where the base member 120 is attached to the front fork 40 with the second orientation. Fig. 8A corresponds to Fig. 4, and Fig. 8B corresponds to Fig. 7.

[0039] Related to the Fig. 8A and Fig. 8B, the bicycle brake caliper assembly 100 can be in two different states, respectively corresponding to the brake rotor 50 and a brake disc 55 having an outer diameter R2 larger than the outer diameter R1 of the brake rotor 50. Specifically, the base member 120 is configured to be coupled to the brake caliper 110 and fixed to the bicycle frame 14 (the front fork 40) so that the relative position between the rotational axis A1 of the brake discs 50 and 55 and the brake caliper 110 is adjustable in the radial direction D1 of the brake discs 50 and 55.The base member 120 is configured such that a first position P11 of the coupling portion 131, in a state where the base member 120 is attached to the bicycle frame 14 with the first orientation, differs from a second position P12 of the coupling portion 131, in a state where the base member 120 is attached to the bicycle frame 14 with the second orientation, in the radial direction D1. In the first embodiment, the first and second positions P11 and P12 are defined, for example, based on a center line of the second threaded hole 118.

[0040] As in Fig. As can be seen in Fig. 8A, in a state where the base member 120 is attached to the front fork 40 with the first orientation, a first distance L17 is defined between the rotational axis A1 of the brake disc 50 and the center line of the second threaded hole 118 in the radial direction D1. As shown in Fig. 8B, in a state where the base member 120 is fixed to the front fork 40 with the second orientation, a second distance L18 is defined between the rotational axis A1 of the brake disc 55 and the center line of the second threaded hole 118 in the radial direction D1. As shown in the Fig. 8A and Fig. As can be seen in Figure 8B, the second distance L18, corresponding to the second orientation, is greater than the first distance L17, corresponding to the first orientation. Accordingly, changing the orientation of the base member 120 relative to the front fork 40 and the brake caliper 110 allows the bicycle brake caliper assembly 100 to be adjusted to accommodate brake discs 50 and 55 with different outer diameters R1 and R2.

[0041] It should be understood that the orientations of the base member are not limited to the first and second orientations, and that the bicycle brake caliper assembly according to the present invention can be adapted to any of three or more brake discs with different outer diameters by changing the orientation of the base member relative to the bicycle frame and the brake caliper between the three or more different orientations. Furthermore, it should be understood that the coupling portion 131 of the base member 120 is not limited to the first through-hole 132 and the second through-hole 136 and may have at least one through-hole such that the relative position between the rotation axis A1 and the brake caliper 110 in the radial direction D1 can be adjusted by changing the orientation of the base member 120.

[0042] A bicycle brake caliper assembly 200 according to a second embodiment not belonging to the invention will be described below with reference to Fig. 9 to 12B. Here, elements having substantially the same function as those in the first embodiment are numbered the same and will not be described again in detail.

[0043] In the first embodiment, the orientation of the base member 120 is changed to adjust the bicycle brake caliper assembly 100 to each of the brake discs 50 and 55; however, the bicycle brake caliper assembly 200 may also be adjusted to each of the brake discs 50 and 55 using a base member 220 having a different structure than that of the base member 120 of the first embodiment.

[0044] Related to Fig. 9, the bicycle brake caliper assembly 200 includes the brake caliper 110, the base member 220, the first coupling member 141, and the second coupling member 145. The first coupling member 141 and the second coupling member 145 are configured to couple the brake caliper 110 to the base member 220. Like the base member 120 of the first embodiment, the base member 220 is configured to be coupled to the brake caliper 110 and fixed to the bicycle frame 14 (the front fork 40) in such a way that the relative position between the rotational axis A1 of the brake disc 50 and the brake caliper 110 is adjustable in the radial direction D1 of the brake disc 50; however, the base member 220 has a different structure than the base member 120 of the first embodiment.

[0045] Specifically, the base member 220 includes a main body 221, the first end portion 122, and the second end portion 123. The main body 221, the first end portion 122, and the second end portion 123 are integrally provided as a one-piece unitary component. The base member 220 is made of a metallic material such as an aluminum alloy or iron. The main body 221 is plate-shaped and extends in the longitudinal direction D3 (in the radial direction D1). The first end portion 122 is opposite the second end portion 123 with respect to the main body 221. The first end portion 122 is disposed at one end of the main body 221. The second end portion 123 is disposed at the other end of the main body 221.

[0046] As in Fig. As shown in Figure 9, the base member 220 further includes a first coupling portion 230 to which the brake caliper 110 is coupled, and a second coupling portion 235 to which the brake caliper 110 is coupled. The first coupling portion 230 and the second coupling portion 235 are provided on the main body 221.

[0047] Unlike the base member 120 of the first embodiment, the base member 220 comprises four through holes so that the relative position between the rotation axis A1 and the brake caliper 110 is adjustable in the radial direction D1, instead of the first through hole 132 and the second through hole 136 of the base member 120. As shown in Fig. 9, the first coupling portion 230 comprises a first through-hole 231 through which the first coupling component 141 passes, and a third through-hole 233 through which the second coupling component 145 passes. As shown in Fig. As shown in Figure 10, the second coupling portion 235 includes a second through-hole 236 through which the first coupling member 141 passes, and a fourth through-hole 238 through which the second coupling member 145 passes. The first through-hole 231 is provided between the second through-hole 236 and the fourth through-hole 238 in the radial direction D1. The fourth through-hole 238 is provided between the first through-hole 231 and the third through-hole 233 in the radial direction D1. The first to fourth through-holes 231, 236, 233, and 238 are aligned in the radial direction D1 (in the longitudinal direction D3 of the base member 220).

[0048] As in the Fig. 9 and Fig. As can be seen in Figure 10, the second coupling portion 235 is spaced apart from the first coupling portion 230 in the radial direction D1. Specifically, the first coupling portion 230 is closer to the second end portion 123 than to the first end portion 122. The second coupling portion 235 is closer to the first end portion 122 than to the second end portion 123.

[0049] As in Fig. 9, in a state where the brake caliper 110 is coupled to the base member 220 at the first coupling portion 230, for example, the first coupling member 141 is screwed through the first through hole 231 into the first threaded hole 117 of the brake caliper 110, and the second coupling member 145 is screwed through the third through hole 233 into the second threaded hole 118 of the brake caliper 110.

[0050] As in Fig. 10, in a state where the brake caliper 110 is coupled to the base member 220 at the second coupling portion 235, for example, the first coupling member 141 is screwed through the second through hole 236 into the first threaded hole 117 of the brake caliper 110, and the second coupling member 145 is screwed through the fourth through hole 238 into the second threaded hole 118 of the brake caliper 110.

[0051] Related to the Fig. 11A and Fig. 11B, the first through-hole 231 includes a first tapered surface 232 provided on the frame-side contact surface 129. The second through-hole 236 includes a second tapered surface 237 provided on the frame-side contact surface 129. The third through-hole 233 includes a third tapered surface 234 provided on the frame-side contact surface 129. The fourth through-hole 238 includes a fourth tapered surface 239 provided on the frame-side contact surface 129. The first to fourth tapered surfaces 232, 237, 234, and 239 have substantially the same function as the first and second tapered surfaces 133 and 137 of the first embodiment.The first countersunk head 143 (or the second countersunk head 147) contacts the first tapered surface 232 of the first through-hole 231 and is provided in a space defined by the first tapered surface 232, preventing the first countersunk head 143 from protruding beyond the frame-side contact surface 129 toward the front fork 40. The first countersunk head 143 (or the second countersunk head 147) contacts the second tapered surface 237 of the second through-hole 236 and is provided in a space defined by the second tapered surface 237, preventing the first countersunk head 143 from protruding beyond the frame-side contact surface 129 toward the front fork 40.The second countersunk head 147 (or the first countersunk head 143) contacts the third tapered surface 234 of the third through-hole 233 and is provided in a space defined by the third tapered surface 234, preventing the second countersunk head 147 from protruding beyond the frame-side contact surface 129 toward the front fork 40. The second countersunk head 147 (or the first countersunk head 143) contacts the fourth tapered surface 239 of the fourth through-hole 238 and is provided in a space defined by the fourth tapered surface 239, preventing the second countersunk head 147 from protruding beyond the frame-side contact surface 129 toward the front fork 40.

[0052] As in Fig. As shown in Figure 11C, a distance L21 is defined between the center C11 of the first fastening through-hole 124 and the center C22 of the second through-hole 236. A distance L22 is defined between the center C21 of the first through-hole 231 and the center C22 of the second through-hole 236. A distance L23 is defined between the center C21 of the first through-hole 231 and the center C24 of the fourth through-hole 238. A distance L24 is defined between the center C23 of the third through-hole 233 and the center C24 of the fourth through-hole 238. A distance L25 is defined between the center C14 of the second fastening through-hole 125 and the center C23 of the third through-hole 233. The distances L21, L22, L24, and L25 are substantially equal to and shorter than the distance L23. This means that the basic component 220 has a substantially symmetrical shape in the longitudinal direction D3.Accordingly, the base member 220 can be used to fix the brake caliper 110 to the front fork 40 regardless of the vertical orientation of the base member 220. For example, the base member 220 can be coupled to the brake caliper 110 in a state where the second end portion 123 is provided at an upper position.

[0053] Related to the Fig. 12A and Fig. 12B, the bicycle brake caliper assembly 200 can be in two different states, respectively corresponding to the brake rotor 50 and the brake rotor 55, which has an outer diameter R2 larger than the outer diameter R1 of the brake rotor 50. Specifically, the base member 220 is configured to be coupled to the brake caliper 110 and fixed to the bicycle frame 14 (the front fork 40) such that the relative position between the rotation axis A1 and the brake caliper 110 is adjustable in the radial direction D1.

[0054] The base member 220 is configured such that a first position P21 of the brake caliper 110, in a state where the brake caliper 110 is coupled to the base member 220 at the first coupling portion 230, differs from a second position P22 of the brake caliper 110 in a state where the brake caliper 110 is coupled to the base member 220 at the second coupling portion 235. In the second embodiment, the first and second positions P21 and P22 are defined, for example, based on the center line of the second threaded hole 118.

[0055] As in Fig. 12A, in a state where the brake caliper 110 is attached to the front fork 40 via the first coupling portion 230 of the base member 220, a first distance L27 from the rotational axis A1 of the brake disc 50 to the center line of the second threaded hole 118 in the radial direction D1 is defined. As shown in Fig. 12B, in a state where the brake caliper 110 is attached to the front fork 40 via the second coupling portion 235 of the base member 220, a second distance L28 is defined from the rotational axis A1 of the brake disc 55 to the center line of the second threaded hole 118 in the radial direction D1. As shown in the Fig. 12A and Fig. As can be seen in Figure 12B, the second distance L28, corresponding to the second coupling portion 235, is greater than the first distance L27, corresponding to the first coupling portion 230. Accordingly, changing the relative position between the base member 220 and the brake caliper 110 allows the bicycle brake caliper assembly 200 to be adjusted to the brake rotors 50 and 55 with different outer diameters R1 and R2.

[0056] It is understood that the first coupling portion 230 and the second coupling portion 235 are not limited to the first to fourth through holes 231, 236, 233, and 238, and may each have at least one through hole formed in the base member as coupling portions to which the brake caliper is coupled, and that the bicycle brake caliper assembly according to the present invention can be adjusted to three or more brake discs with different outer diameters with the at least one through hole of the coupling portions.

[0057] In the following, a bicycle brake caliper assembly 300 according to a third embodiment not belonging to the invention is described with reference to the Fig. 13 to 15B. Here, elements having substantially the same function as in the first and second embodiments are numbered the same and will not be described again in detail.

[0058] Related to Fig. 13, the bicycle brake caliper assembly 300 includes the brake caliper 110, a base member 320, the first coupling member 141, and the second coupling member 145. Like the base members 120 and 220 of the first and second embodiments, the base member 320 is configured to be coupled to the brake caliper 110 and fixed to the bicycle frame 14 (the front fork 40) such that the relative position between the rotation axis A1 and the brake caliper 110 is adjustable in the radial direction D1; however, the base member 320 has a different structure than the base members 120 and 220 of the first and second embodiments.

[0059] Specifically, the base member 320 includes a main body 321, the first end portion 122, and the second end portion 123. The main body 321, the first end portion 122, and the second end portion 123 are integrally provided as a one-piece unitary component. The base member 320 is made of a metallic material such as an aluminum alloy or iron. The main body 321 is plate-shaped and extends in the longitudinal direction D3 (in the radial direction D1). The first end portion 122 is opposite the second end portion 123 with respect to the main body 321. The first end portion 122 is disposed at one end of the main body 321. The second end portion 123 is disposed at the other end of the main body 321.

[0060] As in Fig. As shown in Figure 13, the base member 320 includes an elongated through-hole 333 through which the first coupling member 141 and the second coupling member 145 extend. The elongated through-hole 333 extends in the radial direction D1 (in the longitudinal direction D3 of the base member 320). The elongated through-hole 333 extends in the radial direction D1 from one end portion of the main body 321 to the other end portion of the main body 321. The base member 320 is configured to be coupled to the brake caliper 110 and fixed to the bicycle frame 14 (the front fork 40) such that the relative position between the rotation axis and the brake caliper 110 in the radial direction D1 is adjustable in the elongated through-hole 333.

[0061] Related to Fig. 14A and Fig. 14B, the elongated through-hole 333 includes a tapered surface 334 provided on the frame-side contact surface 129. The first countersunk head 143 of the first coupling member 141 and the second countersunk head 147 of the second coupling member 145 contact the tapered surface 334 and are provided in a space defined by the tapered surface 334, preventing the first and second countersunk heads 143 and 147 from projecting beyond the frame-side contact surface 129 toward the front fork 40. As shown in FIGS. Fig. As can be seen from FIGS. 14A to 14C, the base member 320 has a substantially symmetrical shape in the longitudinal direction D3. Therefore, although in this embodiment the base member 320 is coupled to the brake caliper 110 in a state where the second end portion 123 is arranged in a lower position, the base member 320 can be fixed to the brake caliper 110 and the front fork 40 regardless of the vertical orientation of the base member 320.

[0062] Related to the Fig. 15A and Fig. 15B, the base member 320 is configured to be coupled to the brake caliper 110 and fixed to the bicycle frame 14 (the front fork 40) such that the relative position between the rotation axis A1 and the brake caliper 110 in the radial direction D1 is adjustable in the elongated through hole 333.

[0063] As in Fig. 15A, the first distance L37 between the rotation axis A1 and the center line of the second threaded hole 118 in the radial direction D1 in the elongated through hole 333 is the shortest in a state where the brake caliper 110 is arranged at the first position P31. As shown in Fig. As shown in FIG. 15B, the second distance L38 between the rotation axis A1 and the center line of the second threaded hole 118 in the radial direction D1 in the elongated through-hole 333 is the largest in a state where the brake caliper 110 is disposed at the second position P32. With the elongated through-hole 333, the relative position between the rotation axis A1 and the brake caliper 110 in the radial direction D1 can be adjusted to a desired position within a range of the elongated through-hole 333. Accordingly, changing the relative position between the base member 320 and the brake caliper 110 allows the bicycle brake caliper assembly 300 to be adapted to each of the brake discs 50 and 55 with different outer diameters R1 and R2.Since the base member 320 includes the elongated through-hole 333, the bicycle brake caliper assembly 300 can further be adapted to other brake discs with outer diameters larger than the outer diameter R1 and smaller than the outer diameter R2. It should be understood that the elongated through-hole 333 can be divided into multiple elongated through-holes.

[0064] Hereinafter, a bicycle brake caliper assembly 400 according to a fourth embodiment of the present invention will be described with reference to the Fig. 16 to 20B. Here, elements having substantially the same function as in the first to third embodiments are numbered the same and will not be described again in detail.

[0065] Related to Fig. 16, the bicycle brake caliper assembly 400 includes a brake caliper 410, a base member 420, the first coupling member 141, and the second coupling member 145. Unlike the above first to third embodiments, a banjo 481 is connected to the brake caliper 410 through the base member 420. The front fork 440 of the bicycle frame 14 includes a cavity 445 in which the banjo 481 is disposed.

[0066] Like the brake caliper 110 of the first embodiment, the brake caliper 410 is configured to apply a braking force to a brake disc configured to rotate about the rotation axis A1. The base member 420 is configured to be coupled to the brake caliper 410 and secured to the bicycle frame 14 such that the relative position between the rotation axis A1 of the brake disc and the brake caliper 410 is adjustable in the radial direction D1 of the brake disc. The first coupling member 141 is configured to couple the brake caliper 410 to the base member 420. The second coupling member 145 is configured to couple the brake caliper 410 to the base member 420.

[0067] Like the base member 120 of the first embodiment, the base member 420 includes the coupling portion 131 to which the brake caliper 410 is coupled. The base member 420 is attached to the bicycle frame 14 with a first orientation or a second orientation. The base member 420 is configured such that a position of the coupling portion 131 in a state where the base member 420 is attached to the bicycle frame 14 (the front fork 40) with the first orientation differs from a position of the coupling portion 131 in a state where the base member 420 is attached to the bicycle frame 14 with the second orientation in the radial direction D1. That is, the base member 420 has substantially the same function as the base member 120 of the first embodiment.

[0068] The coupling portion 131 includes the first through hole 132 and the second through hole 136. In Fig. 16, the first coupling member 141 passes through the first through-hole 132, and the second coupling member 145 passes through the second through-hole 136, and the second through-hole 136 is spaced apart from the first through-hole 132 in the radial direction D1.

[0069] The base member 420 further includes a cylindrical projection 431, an additional through-hole 432, and an annular recess 433. The annular recess 433 is provided around the additional through-hole 432 on the caliper-side contact surface 128. A third sealing member 488 is provided in the annular recess 433 between the base member 420 and the brake caliper 410. The cylindrical projection 431 is provided on the frame-side contact surface 129 and protrudes from the frame-side contact surface 129 ( Fig. 17). As in the Fig. 16 and Fig. 17, the additional through hole 432 extends through the main body 121 and the cylindrical projection 431.

[0070] As in Fig. 16, a fluid communication member 490 extends through the additional through-hole 432. The fluid communication member 490 is configured to be in fluid communication with the brake caliper fluid passage 58 ( Fig. 3). The fluid communication component 490 is a hollow screw for fastening the banjo 481 to the base component 420 and includes a shaft portion 491, an external thread 492, a head portion 493, and a fluid channel 495. The shaft portion 491 extends in a longitudinal direction of the fluid communication component 490. The external thread 492 is provided at one end of the shaft portion 491. The head portion 493 is provided at the other end of the shaft portion 491. The fluid channel 495 is formed in the fluid communication component 490 such that it fluidly connects the banjo 481 with the brake caliper fluid channel 58 ( Fig. 3).

[0071] As in Fig. As seen in Figure 16, the banjo 481 includes a through-hole 482 through which the fluid communication member 490 passes. The hydraulic brake hose 86 is connected to the banjo 481. The banjo 481 further includes a first annular recess 483 disposed around the through-hole 482. The first annular recess 483 is provided on a side closer to the cylindrical projection 431 of the base member 420. A first sealing member 487 is provided in the first annular recess 483 between the banjo 481 and the cylindrical projection 431.

[0072] As in Fig. As shown in Figure 17, the banjo 481 further includes a second annular recess 484 disposed around the through-hole 482. The second annular recess 484 is provided on the opposite side of the first annular recess 483. A second sealing member 486 is provided in the second annular recess 484 between the banjo 481 and the head portion 493 of the fluid communication member 490.

[0073] The brake caliper 410 includes an additional threaded hole 416 provided on a mounting back surface 119. The external thread 492 of the fluid communication component 490 is screwed into the additional threaded hole 416. The additional threaded hole 416 is located at a middle position between the first threaded hole 117 and the second threaded hole 118. The additional threaded hole 416 is located at a position corresponding to the additional through hole 432 of the base component 420.

[0074] As in the Fig. As shown in Figures 18A to 18C, the additional through-hole 432 is located at a middle position between the first through-hole 132 and the second through-hole 136. The distance L41 between the center C41 of the additional through-hole 432 and the center C12 of the first through-hole 132 is substantially the same as the distance L42 between the center C41 of the additional through-hole 432 and the center C13 of the second through-hole 136.

[0075] Related to Fig. 19, the banjo 481 includes a banjo fluid passage 489 in fluid communication with the hydraulic brake hose 86. The brake caliper 410 includes the brake caliper fluid passage 58 in fluid communication with the additional threaded hole 416. In a state where the banjo 481 is attached to the base member 420 with the fluid communication member 490, a fluid passage space 499 is defined by the fluid communication member 490, the banjo 481, and the base member 420. Specifically, the fluid passage space 499 has a substantially cylindrical shape and is defined by the shaft portion 491, the banjo 481, and the additional through hole 432. The fluid channel space 499 is sealed with the first sealing component 487, the second sealing component 486, and the third sealing component 488. The fluid channel space 499 is in fluid communication with the banjo fluid channel 489.The fluid channel 495 of the fluid communication component 490 is configured to connect the fluid channel space 499 with the brake caliper fluid channel 58. Accordingly, the banjo fluid channel 489 is in fluid communication with the brake caliper fluid channel 58 via the fluid channel space 499 and the fluid channel 495.

[0076] Related to the Fig. 20A and Fig. 20B, the front fork 450 of the bicycle frame 14 includes a cavity 445 and a hose passage 446. The cavity 445 is formed between the threaded holes 43 and 44 to contain the fluid communication member 490 and the banjo 481. The fluid communication member 490 and the banjo 481 are disposed in the cavity 445 in a state where the bicycle brake caliper assembly 400 is attached to the front fork 440. The hose channel 446 extends along the front fork 440 from the cavity 445 to an upper portion of the front fork 440. The hose channel 446 includes an inlet opening (not shown) at the upper portion of the front fork 440. The hydraulic brake hose 86 extends through the hose channel 446 and is configured to connect the banjo 481 to the master cylinder 24 of the brake actuation mechanism 23.The hydraulic brake hose 86 passes through the inlet opening (not shown) of the hose channel 446 and is connected to the master cylinder 24 mounted on the handlebar 15 (. Fig. 3).

[0077] As in the Fig. 20A and Fig. 20B, the bicycle brake caliper assembly 400 can be in two different states, corresponding respectively to the brake rotor 50 and the brake rotor 55 having an outer diameter R2 larger than the outer diameter R1 of the brake rotor 50, and the bicycle brake caliper assembly 100 of the first embodiment.

[0078] Specifically, the base member 420 is configured to be coupled to the brake caliper 410 and fixed to the bicycle frame 14 such that the relative position between the rotational axis A1 of the brake discs 50 and 55 and the brake caliper 410 is adjustable in the radial direction D1 of the brake discs 50 and 55. The base member 420 is configured such that the first position P11 of the coupling portion 131, in a state where the base member 420 is fixed to the bicycle frame 14 with the first orientation, differs from the second position P12 of the coupling portion 131, in a state where the base member 420 is fixed to the bicycle frame 14 with the second orientation, in the radial direction D1. In the fourth embodiment, the first and second positions P11 and P12 are defined, for example, based on the center line of the second threaded hole 118.

[0079] As in the Fig. 20A and Fig. As shown in Figure 20B, the second distance L118 corresponding to the second orientation is greater than the first distance L17 corresponding to the first orientation. Therefore, changing the orientation of the base member 420 with respect to the front fork 440 and the brake caliper 110 allows the bicycle brake caliper assembly 400 to be adapted to each of the brake rotors 50 and 55 with different outer diameters R1 and R2. Since the additional through-hole 432 is located at the intermediate position between the first through-hole 132 and the second through-hole 136, the fluid communication member 490 can be attached to the base member 420 and the brake caliper 410 in a state where the base member 420 is coupled to the brake caliper 410 in the first orientation and the second orientation.

[0080] Furthermore, since the banjo 481 and the fluid communication member 490 are arranged in the cavity 445 of the front fork 440, the banjo 481, the fluid communication member 490 and the hydraulic brake hose 86 can be protected from the front fork 440.

[0081] Hereinafter, a bicycle brake caliper assembly 500 according to a fifth embodiment of the present invention will be described with reference to the Fig. 21 to 24B. Here, elements having substantially the same function as in the first to fourth embodiments are numbered the same and will not be described again in detail.

[0082] In the fourth embodiment, the fluid communication member 490 is connected to the brake caliper 410 through the additional through-hole 432 of the base member 420; however, the fluid communication member 490 may also serve as a coupling member configured to couple the base member to the brake caliper, instead of the first coupling member 141 of the above embodiments. In this fifth embodiment, the first coupling member 541 is referred to as the fluid communication member 490. The first coupling member 541 has substantially the same function and structures as the fluid communication member 490 of the fourth embodiment.

[0083] Related to Fig. 21, the bicycle brake caliper assembly 500 includes a brake caliper 510, a base member 520, the first coupling member 541, and a second coupling member 545. Like the brake calipers of the above embodiments, the brake caliper 510 is configured to apply a braking force to a brake rotor configured to be rotatable about the rotation axis A1.

[0084] The base member 520 is configured to be coupled to the brake caliper 510 and secured to the bicycle frame 14 (the front fork 40) such that the relative position between the rotation axis A1 and the brake caliper 510 is adjustable in the radial direction D1. The first coupling member 541 is configured to couple the brake caliper 510 to the base member 520. The second coupling member 545 includes an external thread 546 and a head portion 547.

[0085] The base member 520 is attached to the bicycle frame 14 with a first orientation or a second orientation, just like the base member 120 of the first embodiment. The base member 520 includes a coupling portion 530 to which the brake caliper 510 is coupled. The base member 520 is configured such that a position of the coupling portion 530 in a state where the base member 520 is attached to the bicycle frame 14 (the front fork 540) with the first orientation differs from a position of the coupling portion 530 in a state where the base member 520 is attached to the bicycle frame 14 with the second orientation, in the radial direction D1.

[0086] As in the Fig. 21 and 23A to 23C, the base member 520 includes a main body 521, the first end portion 122, the second end portion 123, and a coupling portion 530. The coupling portion 530 includes a first through-hole 532, a first cylindrical projection 531, a first annular recess 533, a second through-hole 536, a second cylindrical projection 535, and a second annular recess 537. The first cylindrical projection 531 is provided on the frame-side contact surface 129 and protrudes from the frame-side contact surface 129 ( Fig. 22). The second cylindrical projection 535 is provided on the frame-side contact surface 129 and protrudes from the frame-side contact surface 129 ( Fig. 22). The first through-hole 532 passes through the first cylindrical projection 531 and the main body 521 ( Fig. 23B). The second through-hole 536 passes through the second cylindrical projection 535 ( Fig. 23B). The first through-hole 532 and the second through-hole 536 are arranged in the same positions as the first through-hole 132 and the second through-hole 136 of the first embodiment in the base member 520. In the Fig. 21 and Fig. 22, the first coupling member 541 passes through the first through-hole 532, and the second coupling member 545 passes through the second through-hole 536.

[0087] As in the Fig. 21 and Fig. As shown in Fig. 23C, the first annular recess 533 is provided around the first through-hole 532 on the caliper-side contact surface 128. The second annular recess 537 is provided around the second through-hole 536 on the caliper-side contact surface 128. The third sealing member 488 is provided in one of the first annular recess 533 and the second annular recess 537 in a state where the base member 520 is coupled to the caliper 510.

[0088] As in Fig. 21, the first coupling member 541 connects the banjo 481 and the base member 520 to the brake caliper 510. The first coupling member 541, the banjo 481, and the second coupling member 545 are provided in the cavity 548 of the front fork 540 of the bicycle frame 14 in a state where the bicycle brake caliper assembly 500 is attached to the front fork 540.

[0089] As in Fig. 22, the brake caliper 510 includes a first threaded bore 517 and the second threaded bore 118. The external thread 492 of the first coupling member 541 is screwed into the first threaded bore 517. The external thread 546 of the second coupling member 545 is screwed into the second threaded bore 118. The second coupling member 545 has substantially the same function as the first and second coupling members 141 and 145 of the first embodiment. The first coupling member 541 is configured to couple the brake caliper 510 to the base member 520 and provides the fluid channel 495, which is configured to communicate with the brake caliper fluid channel 58 ( Fig. 24).

[0090] Related to Fig. 24, the banjo 481 includes the banjo fluid passage 489 in fluid communication with the hydraulic brake hose 86. The brake caliper 510 includes the caliper fluid passage 58 in fluid communication with the first threaded hole 517. In a state where the banjo 481 is attached to the base member 520 with the first coupling member 541, a fluid passage space 599 is defined by the first coupling member 541, the banjo 481, and the base member 520. Specifically, the fluid passage space 599 has a substantially cylindrical shape and is defined by the shaft portion 491, the banjo 481, and the first through-hole 532 (or the second through-hole 536). The fluid channel space 599 is sealed with the first sealing component 487, the second sealing component 486, and the third sealing component 488. The fluid channel space 599 is in fluid communication with the banjo fluid channel 489.The fluid channel 495 of the first coupling component 541 is configured to connect the fluid channel space 599 with the brake caliper fluid channel 58. Accordingly, the banjo fluid channel 489 is in fluid communication with the brake caliper fluid channel 58 via the fluid channel space 599 and the fluid channel 495.

[0091] Related to the Fig. 25A and Fig. 25B, the front fork 540 of the bicycle frame 14 includes the cavity 548 and a hose passage 549. The cavity 548 is formed between the threaded holes 43 and 44 to contain the first coupling member 541, the banjo 481, and the second coupling member 545. The first coupling member 541, the banjo 481, and the second coupling member 545 are disposed in the cavity 548 in a state where the bicycle brake caliper assembly 500 is attached to the front fork 540. The hose channel 549 extends along the front fork 540 from the cavity 548 to an upper portion of the front fork 540. The hose channel 549 includes an inlet opening (not shown) at the upper portion of the front fork 540. The hydraulic brake hose 86 extends through the hose channel 549 and is configured to connect the banjo 481 to the master cylinder 24 of the brake actuation mechanism 23.The hydraulic brake hose 86 extends through the inlet opening (not shown) of the hose channel 549 and is connected to the master cylinder 24 which is mounted on the handlebar 15 (. Fig. 3).

[0092] As in the Fig. 25A and Fig. As shown in Figure 25B, the bicycle brake caliper assembly 500 can be in two different states, respectively corresponding to the brake disc 50 and the brake disc 55 having an outer diameter larger than the outer diameter of the brake disc 50, just like the bicycle brake caliper assembly 100 of the first embodiment. Specifically, the base member 520 is configured to be coupled to the brake caliper 510 and fixed to the bicycle frame 14 such that the relative position between the rotational axis A1 of the brake discs 50 and 55 and the brake caliper 510 is adjustable in the radial direction D1 of the brake discs 50 and 55.The base member 520 is configured such that the first position P11 of the coupling portion 530, in a state where the base member 520 is attached to the bicycle frame 14 with the first orientation, differs from the second position P12 of the coupling portion 530, in a state where the base member 520 is attached to the bicycle frame 14 with the second orientation, in the radial direction D1. In the fifth embodiment, the first and second positions P11 and P12 are defined, for example, based on the center line of the second threaded hole 118.

[0093] As in the Fig. 25A and Fig. As shown in Figure 25B, the second distance L18 corresponding to the second orientation is greater than the first distance L17 corresponding to the first orientation. Therefore, changing the orientation of the base member 120 relative to the front fork 540 and the brake caliper 510 allows the bicycle brake caliper assembly 500 to be adjustable to each of the brake rotors 50 and 55 with different outer diameters R1 and R2. Since the first coupling member 541 has a function similar to both the fluid communication member 490 and the first coupling member 141, the number of components or parts can be reduced, thereby reducing the cost of the bicycle disc brake device.

[0094] Furthermore, since the banjo 481 and the first coupling member 541 are arranged in the cavity 548 of the front fork 540, the banjo 481, the first coupling member 541 and the hydraulic brake hose 86 can be protected from the front fork 440.

[0095] In the following, a bicycle brake caliper assembly 600 according to a sixth embodiment not belonging to the invention is described with reference to Fig. 26. Here, elements having substantially the same function as in the first to fifth embodiments are numbered the same and will not be described again in detail.

[0096] In the above embodiments, the base member is a separate component from the brake caliper; however, the brake caliper and the base member may also be formed as a single, integral component. For example, as discussed below, the brake caliper 110 and the base member 220 of the second embodiment may be formed as a single, integral component.

[0097] Related to Fig. 26, the bicycle brake caliper assembly 600 includes a brake caliper 610 and a base member 620. In this sixth embodiment, the brake caliper 610 and the base member 620 are formed as a one-piece unitary component. The bicycle brake caliper assembly 600 is made of a metallic material such as an aluminum alloy or iron. The brake caliper 610 is configured to apply a braking force to a brake disc configured to rotate about the rotation axis A1. The base member 620 is configured to be coupled to the brake caliper 610 and secured to the bicycle frame 14 (the front fork 40) such that the relative position between the rotation axis A1 of the brake disc and the brake caliper 710 is adjustable in the radial direction D1 of the brake disc.

[0098] Specifically, the base member 620 includes a first fastening through-hole 621, a second fastening through-hole 622, a third fastening through-hole 623, and a fourth fastening through-hole 624. A first fastening member 151 extends through the first fastening through-hole 621 or the third fastening through-hole 623. A second fastening member 155 extends through the second fastening through-hole 622 or the fourth fastening through-hole 624.

[0099] The first fastening member 151 and the second fastening member 155 pass through the first fastening through-hole 621 and the second fastening through-hole 622, thereby fastening the base member 620 to the front fork 40 of the bicycle frame 14 at a first position P61. The first fastening member 151 and the second fastening through-hole 623 and the fourth fastening through-hole 624, thereby fastening the base member 620 to the front fork 40 at a second position P62, which is different from the first position P61 in the radial direction D1. The second position P62 is farther from the rotation axis than the first position P61.

[0100] Since the brake caliper 610 and the base member 620 are formed as a one-piece unitary member, the first coupling member 141 and second coupling member 145 described in the above embodiments can be omitted, thereby reducing the cost of the bicycle brake caliper assembly.

[0101] In the following, a bicycle brake caliper assembly 700 according to a seventh embodiment not belonging to the invention is described with reference to Fig. 27. Here, elements having substantially the same function as in the first to fifth embodiments are numbered the same and will not be described again in detail.

[0102] In the above embodiments, the base member is a separate component from the brake caliper; however, the brake caliper and the base member may also be formed as a single, integral component. For example, as discussed below, the brake caliper 110 and the base member 320 of the third embodiment may be formed as a single, integral component.

[0103] Related to Fig.27, the bicycle brake caliper assembly 700 includes a brake caliper 710 and a base member 720. In this seventh embodiment, the brake caliper 710 and the base member 720 are formed as a one-piece unitary component, just as in the sixth embodiment. The bicycle brake caliper assembly 700 is made of a metallic material such as an aluminum alloy or iron. The brake caliper 710 is configured to apply a braking force to a brake disc configured to rotate about the rotation axis A1. The base member 720 is configured to be coupled to the brake caliper 710 and attached to the bicycle frame such that the relative position between the rotation axis A1 of the brake disc and the brake caliper 710 is adjustable in the radial direction D1 of the brake disc.

[0104] Specifically, the base member 720 includes a first fastening through-hole 721 and a second fastening through-hole 722. The first fastening through-hole 721 extends in the radial direction D1 (in the longitudinal direction D3 of the base member 720). The second fastening through-hole 722 extends in the radial direction D1 (in the longitudinal direction D3 of the base member 720). The first fastening member 151 passes through the first fastening through-hole 721, thereby fastening the base member 720 to the front fork 40 of the bicycle frame 14. The second fastening member 155 passes through the second fastening through-hole 722, thereby fastening the base member 720 to the front fork 40 of the bicycle frame 14.

[0105] Since the first fastening through-hole 721 and the second fastening through-hole 722 extend in the radial direction D1, the relative position between the rotational axis A1 of the brake disc and the brake caliper 710 in the radial direction D1 of the brake disc is adjustable within the range of the first fastening through-hole 721 or the second fastening through-hole 722. In this embodiment, the relative position between the rotational axis A1 of the brake disc and the brake caliper 710 in the radial direction D1 of the brake disc is adjustable between a first position P71 and a second position P72.

[0106] Since the brake caliper 710 and the base member 720 are formed as a one-piece unitary component, the first coupling member 141 and second coupling member 145 described in the above embodiments can be omitted, thereby reducing the cost of the bicycle brake caliper assembly.

[0107] In understanding the scope of the present invention, the following directional phrases "front," "rear," "forward," "backward," "left," "right," "up," and "down," as used herein to describe the above embodiments, as well as other similar directional phrases, refer to those directions determined with respect to a cyclist sitting on the saddle of a bicycle and facing the handlebars of the bicycle. Consequently, when used to describe the bicycle brake caliper assembly, these terms should be interpreted with respect to a bicycle equipped with the bicycle brake caliper assembly being used in an upright sitting position on a horizontal surface.

Claims

[1] Bicycle brake caliper assembly (100, 400, 500), comprising: a brake caliper (110, 410, 510) configured to apply a braking force to a brake disc (50) configured to be rotatable about an axis of rotation (A1); a base component (120, 420, 520) configured to be coupled to the brake caliper (110, 410, 510) and secured to the bicycle frame (14) such that the relative position between the rotational axis (A1) of the brake disc (50) and the brake caliper (110, 410, 510) is adjustable in a radial direction (D1) of the brake disc (50), wherein the base member (120) comprises a frame-side contact surface (129), and wherein the frame-side contact surface (129) is configured to contact the bicycle frame (14) in a state in which the base member (120) is attached to the bicycle frame (14), wherein the base component (120, 420, 520) comprises a main body (121), a first end portion (122) and a second end portion (123), and the main body (121), the first end portion (122) and the second end portion (123) are provided integrally as a one-piece unitary component, wherein the first end portion (122) is arranged at one end of the main body (121) and the second end portion (123) is arranged at the other end of the main body (121), wherein the base member (120, 420, 520) comprises a coupling portion (131, 530) to which the brake caliper (110, 410, 510) is coupled, the base component (120, 420, 520) is attached to the bicycle frame (14) with a first orientation or a second orientation and the base member (120, 420, 520) is configured such that a first position of the coupling portion (131, 530) in a state where the base member (120, 420, 520) is attached to the bicycle frame (14) with the first orientation differs from a second position of the coupling portion (131, 530) in a state where the base member (120, 420, 520) is attached to the bicycle frame (14) with the second orientation in the radial direction (D1); a first coupling member (141, 541) configured to couple the brake caliper (110, 410, 510) to the base member (120, 420, 520), wherein the coupling portion (131, 530) comprises a first through-hole (132, 532) through which the first coupling component (141, 541) extends; and a second coupling member (145, 545) configured to couple the brake caliper (110, 410, 510) to the base member (120, 420, 520), wherein the coupling portion (131, 530) comprises a second through-hole (136, 536) through which the second coupling component (145, 545) extends and which is arranged at a distance from the first through-hole (132, 532) in the radial direction, wherein the first through-hole (132) and the second through-hole (136) are provided on the main body (121), wherein the basic component (120, 420, 520) a first fastening through-hole (124) through which a first fastening component (151) extends, whereby the base component (120, 420, 520) is fastened to the bicycle frame (14), and a second fastening through-hole (125) through which a second fastening component (155) extends, whereby the base component (120, 420, 520) is fastened to the bicycle frame (14), wherein the first fastening through-hole (124) is provided at the first end portion (122) and the second fastening through-hole (125) is provided at the second end portion (123), and wherein the second fastening through-hole (125) is spaced apart from the first fastening through-hole (124) in the radial direction, and the first through-hole (132, 532) and the second through-hole (136, 536) are arranged between the first fastening through-hole (124) and the second fastening through-hole (125), wherein the distance between the center (C11) of the first fastening through-hole (124) and the center (C12) of the first through-hole (132, 532) is greater than the distance between the center (C14) of the second fastening through-hole (125) and the center (C13) of the second through-hole (136, 536), wherein the brake calliper (110) comprises a first threaded bore (117) and a second threaded bore (118), the first coupling component (141) comprises a first external thread (142), the second coupling component (145) comprises a second external thread (146), in a state where the base component (120) is attached to the bicycle frame (14) with the first orientation, the first external thread (142) is screwed through the first through hole (132) into the first threaded bore (117) and the second external thread (146) is screwed through the second through hole (136) into the second threaded bore (118), and in a state where the base member (120) is attached to the bicycle frame (14) with the second orientation, the first external thread (142) is screwed through the second through hole (136) into the first threaded bore (117) and the second external thread (146) is screwed through the first through hole (132) into the second threaded bore (118). [2] Bicycle brake caliper assembly (500) according to claim 1, wherein the brake calliper (510) comprises a brake calliper fluid channel (58) and the first coupling member (541) provides a fluid channel (495) configured to communicate with the brake caliper fluid channel (58). [3] Bicycle brake caliper assembly (400) according to claim 1, wherein the brake calliper (410) comprises a brake calliper fluid channel (58), the base member (420) comprises an additional through-hole (432) through which a fluid communication member (490) in fluid communication with the brake caliper fluid channel (58) extends, and the additional through-hole (432) is arranged in a middle position between the first through-hole (132) and the second through-hole (136). [4] The bicycle brake caliper assembly (100) according to claim 1, wherein the first fixing through-hole (124) and the second fixing through-hole (125) extend in the axial direction (D2) of the brake disc (50) in a state where the base member (120) is fixed to the bicycle frame (14).

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