Bicycle derailleur

Abstract

A bicycle derailleur (12; 312), comprising: a base member (16; 316) configured to be mounted on a bicycle frame (F); a chain guide (18; 318) configured to be movable between a retracted position and an extended position with respect to the base member (16; 316); a connecting assembly (20; 320) operatively coupling the chain guide (18; 318) to the base member (16; 316); anda cable fixing structure (22; 322) configured to fix an operating cable (14a) that moves the link assembly (20; 320) in response to an operation of the operating cable (14a), wherein the cable fixing structure (22; 322) is mounted to one of the chain guide (18; 318) and the link assembly (20; 320), and wherein the cable fixing structure (22; 322) includes:a cable fixing member (26; 326) to which the operating cable (14a) is fixed, wherein the cable fixing member (26;326) is movable with respect to one of the chain guide (18; 318) and the connecting assembly (20; 320), in a state in which the operating cable (14a) is fixed to the cable fixing member (26; 326), a fixing device (32; 332) configured to fix the operating cable (14a) to the cable fixing member (26; 326), wherein the fixing device (32; 332) extends through the cable fixing member (26; 326) in a direction of a fixing axis (A2), wherein the fixing device (32; 332) is rotatably mounted in a fixing direction about the fixing axis (A2) to fix the operating cable (14a) to the cable fixing member (26; 326), and a cable tension adjusting structure (36; 336), configured to move the cable fastening member (26; 326) relative to one of the chain guide (18; 318) and the connecting assembly (20; 320), wherein the cable tension adjustment structure (36; 336) includes an adjustment member (36a; 336a), wherein the adjustment member (36a; 336a) is movable from the mooring device (32;332) is different to adjust a position of the cable fastening member (26; 326) with respect to one of the chain guide (18; 318) and the connecting arrangement (20; 320) about the fixing axis (A2);

Description

BACKGROUND

[0001] This application claims priority to U.S. Patent Application No. 14 / 614,714, filed February 5, 2015, and priority to continuation-in-part patent application No. 14 / 879,410, filed October 9, 2015. The entire disclosures of U.S. Patent Application No. 14 / 614,714 and continuation-in-part patent application No. 14 / 879,410 are hereby incorporated by reference in their entirety. Field of the invention

[0002] This invention relates to a bicycle derailleur. More specifically, the present invention relates to a bicycle derailleur having a cable fixing structure configured to fix an operating cable that moves a chain guide relative to a base link via a link assembly in response to operation of the operating cable. Background information

[0003] A bicycle typically uses a chain-drive rear derailleur to transmit pedal power to a rear wheel. A bicycle's chain-drive rear derailleur often uses one or two front derailleurs to selectively move a chain from one of a plurality of sprockets to another to change the bicycle's speeds. A typical derailleur includes a base link, a chain guide, and a connecting assembly (e.g., a moving mechanism) coupled between the base link and the chain guide such that the chain guide moves laterally relative to the base link. A spring typically biases the chain guide to either an innermost or outermost position relative to the sprockets. A Bowden-type control cable is typically coupled between the front derailleur and a conventional shift control device. The Bowden-type control cable includes an outer casing and an inner actuating cable.The inner actuation cable is slidably mounted within the outer housing. Often, a tension screw (an inline hollow bolt) is provided to adjust the cable tension of the inner actuation cable, effectively stretching or shortening the length of the outer housing relative to a fixed anchor point. Stretching the outer housing (turning the tension screw outward) tightens the inner actuation cable, while shortening the outer housing (turning the tension screw inward) loosens the inner actuation cable. The derailleur chain guide is moved laterally by movement of the link assembly via the inner actuation cable, which slides within the outer housing. Pulling the inner actuation cable moves the movable link and the chain guide moves against the preload of the spring, while loosening the inner actuation cable causes the movable link and the chain guide to move due to the preload of the spring.

[0004] From document DE 34 40 383 A1 a front derailleur for a bicycle is known which includes a chain guide and a movable member for axially moving the chain guide of a multi-stage front sprocket assembly to actuate a control wire to shift a drive chain guided by the chain guide from one front sprocket to another.

[0005] From the document US 2008 / 0 300 076 A1 a manually operated front derailleur for a bicycle is known, which includes a linkage arrangement, a lever link and a connecting link.

[0006] From the document US 2013 / 0 085 026 A1 a front derailleur is known which comprises a base member adapted to be mounted on a bicycle frame, a chain guide operatively connected to the base member, and an actuating mechanism coupled to the base member and the chain guide for moving the chain guide relative to the base member between a first position corresponding to a location for positioning a chain on a first sprocket and a second position corresponding to a location for positioning the chain on a second sprocket. SUMMARY

[0007] The object of the present invention is to provide a bicycle derailleur that enables the tension of an operating cable that moves a chain guide relative to a base link via a connecting arrangement in response to an operation of the operating cable to be easily and efficiently adjusted.

[0008] The present object is achieved by the subject matter of main claim 1 and dependent claim 20, with further advantageous embodiments being described in the subclaims. One aspect is to provide a bicycle derailleur comprising a cable fixing structure configured to fix an actuating cable that moves a chain guide relative to a base link via a connecting arrangement in response to actuation of the actuating cable.

[0009] In view of the known technology and according to a first aspect of the present disclosure, a bicycle derailleur is provided comprising a base member, a chain guide, a link assembly, and a cable fixing structure. The base member is configured to be mounted to a bicycle frame. The chain guide is configured to be movable between a retracted position and an extended position with respect to the base member. The link assembly operatively couples the chain guide to the base member. The cable fixing structure is configured to fix an operating cable that moves the link assembly in response to operation of the operating cable. The cable fixing structure is mounted to one of the chain guide and the link assembly. The cable fixing structure includes a cable fixing member to which the operating cable is fixed.The cable fixing member is movable with respect to one of the chain guide and the connecting assembly in a state where the operating member is / will be fixed to the cable fixing member. The cable fixing structure further includes a fastener for fixing the operating cable to the cable fixing member, the fastener extending through the cable fixing member in a direction of a fixing axis. The fastener is rotatably mounted in a fixing direction about the fixing axis to fix the operating cable to the cable fixing member. The cable fixing structure further includes a cable tension adjustment structure configured to move the cable fixing member relative to one of the chain guide and the connecting assembly.The cable tension adjustment structure includes an adjustment member, the adjustment member being different from the fastener, for adjusting a position of the cable fastening member with respect to one of the chain guide and the connecting assembly about the fixing axis.

[0010] Preferably, the cable fixing structure is mounted to the connecting arrangement.

[0011] Preferably, the adjusting member is a screw which is screwed into a bore of one of the chain guide and the connecting arrangement or is threadably engaged.

[0012] Preferably, the adjusting member is configured to push the cable fastening member to limit movement of the cable fastening member in a cable release direction.

[0013] Preferably, the cable fixing member is configured to be movable in a cable pulling direction in a state where the operating cable is fixed to the cable fixing member.

[0014] Preferably, the cable fastening member includes a limiting structure configured to selectively limit or restrict movement of the cable fastening member in a cable pulling direction.

[0015] Preferably, the limiting structure includes a first tool access portion configured for a tool to provide access to limit or restrict the movement of the cable fastening member in the cable pulling direction.

[0016] Preferably, the cable fixing structure includes the cable tension adjustment structure configured to move the cable fastening member relative to one of the chain guides of the connecting assembly. The cable tension adjustment structure includes the adjustment member for adjusting a position of the cable locking member with respect to one of the chain guides and the connecting assembly. The adjustment member may include a second tool access portion configured to allow access by a tool to actuate the adjustment member, wherein the first and second tool access portions have profiles configured such that the tool can access both the first and second tool access portions.

[0017] Preferably, the cable fixing structure alternatively includes the cable tension adjustment structure configured to move the cable fastening member relative to one of the chain guide and the connecting assembly. The cable tension adjustment structure may include the adjustment member for adjusting a position of the cable fastening member with respect to one of the chain guide and the connecting assembly. The adjustment member may include a second tool access portion configured to provide access for a tool to actuate the adjustment member. The second tool access portion may be arranged relative to one of the chain guide and the connecting assembly to inhibit the tool from accessing the second tool access portion while the chain guide is positioned in one of the retracted position and the extended position.

[0018] Preferably, the cable fixing structure includes the cable tension adjustment structure configured to move the cable fixing member relative to one of the chain guide and the connecting assembly. The cable tension adjustment structure may include the adjustment member for adjusting a position of the cable fixing member with respect to one of the chain guide and the connecting assembly. The adjustment member may be configured to abut the cable fixing member to define an angular position of the cable fixing member about the fixing axis.

[0019] Preferably, the mooring device is rotatably mounted in a fixing direction relative to the fixing axis to fix the actuating cable to the cable fixing member. The adjusting member may be arranged on a downstream side of the second stop with respect to the fixing direction.

[0020] Preferably, the adjustment member includes a second tool access portion configured for a tool to be accessible for actuation of the adjustment member. The second tool access portion can be accessibly arranged relative to one of the chain guides of the link assembly to allow the tool S to be accessible to the second tool access portion while the chain guide is in the retracted position or while the chain guide is in the extended position.

[0021] Preferably, the connecting assembly includes a first connector pivotally coupled to the base member with respect to a mounting axis. The fixing axis may extend perpendicular to a second reference plane parallel to the mounting axis.

[0022] Preferably, the cable fixing structure is free of an outer sheath holder to which one end of an outer sheath of the actuating cable is held.

[0023] Preferably, the cable fastening member includes a cable clamping portion to which the actuating member is clamped. The cable fastening member can be configured to selectively rotate in a cable pulling direction and a cable releasing direction upon actuation of the adjusting member.

[0024] Preferably, the connecting assembly includes first and second connectors that pivotally couple the chain guide to the base member, wherein an input connector is pivotally mounted to the base member to transmit a pulling force of the actuating cable to one of the first connector and the second connector. The cable fixing structure can be mounted to the input connector.

[0025] Preferably, the connecting arrangement includes at least one terminal connector which operatively connects the input connector to one of the first and second connectors.

[0026] Preferably, the cable fastening member is rotatably mounted to the input connector.

[0027] Preferably, the cable fixing structure includes the cable tension adjustment structure configured to move the cable fastening member relative to the input connector. The cable tension adjustment structure may include the adjustment member for adjusting a position of the cable fastening member with respect to the input connector. The adjustment member may be a screw that is screwed into or threadably engaged with a bore of the input connector.

[0028] Preferably, the bicycle derailleur further comprises a cover configured to be removably attached to one of the chain guide and the connecting assembly to cover the cable fixing structure.

[0029] Preferably, the cover includes a cable holder configured to hold one end of the actuating cable.

[0030] According to another aspect of the present invention, a cable fixing structure is provided, which is configured to fix an operating cable that moves a bicycle derailleur in response to operation of the operating cable. The cable fixing structure essentially comprises a cable fixing member and a cable tension adjustment structure. The cable fixing member is configured to have the operating cable fixed thereto by a fastener having a fixing axis. The cable fixing member has a fixing axis. The fastener is configured to fix the operating cable to the cable fixing member, wherein the fastener extends through the cable fixing member in a direction of the fixing axis. The fastener is rotatably mounted in a fixing direction about the fixing axis to fix the operating cable to the cable fixing member.The cable tension adjustment structure is configured to move the cable fastening member relative to one of a chain guide and a connecting assembly of the bicycle derailleur, in particular in a direction parallel to a first reference plane, which is perpendicular to the fixing axis in a state in which the operating cable is / will be fixed to the cable fastening member. The cable tension adjustment structure includes an adjusting member, wherein the adjusting member is different from the fastener, for adjusting a position of the cable fastening member with respect to one of the chain guide and the connecting assembly about the fixing axis.

[0031] Preferably, the cable fastening member is mounted rotatably around the fixing axis of the mooring device.

[0032] Preferably, the cable fastening member is configured to be slidable in the direction parallel to the first reference plane.

[0033] Preferably, a base member of the bicycle derailleur includes a first indicator and the link assembly includes a second indicator, the first and second indicators being configured to indicate a first initial position of the link assembly with respect to the base member.

[0034] Also, other features, aspects, and advantages of the disclosed bicycle derailleur will become apparent to one skilled in the bicycle art from the following detailed description, which, taken in conjunction with the accompanying drawings, discloses various illustrated embodiments of the bicycle derailleur. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Referring now to the accompanying drawings which form a part of the original disclosure: Fig. 1 is a partial side elevational view of a bicycle frame with a bicycle front derailleur mounted thereon according to a first illustrated embodiment; Fig. 2 is a perspective outside view of the front derailleur illustrated in Fig. 1; Fig. 3 is a perspective inside view of the front derailleur illustrated in the Fig. 1 and Fig. 2; Fig. 4 is an outside elevational view of the front derailleur illustrated in the Fig. 1 to 3; Fig. 5 is an inside elevation view of the front derailleur illustrated in the Fig. 1 to 4; Fig. 6 is a front elevational view of the front derailleur illustrated in the Fig. 1 to 5, in which the chain guide is arranged in the retracted position (ie the closest position with respect to the bicycle frame); Fig. 7 is a rear elevational view of the front derailleur illustrated in the Fig. 1 to 6, in which the chain guide is arranged in the retracted position (ie the closest position with respect to the bicycle frame); Fig. 8 is an enlarged elevational view of a portion of the front derailleur illustrated in the Fig. 1 to 7, in which the chain guide is arranged in the retracted position (ie the closest position with respect to the bicycle frame) and in which the cable fastening member is removed; Fig. 9 is a front elevational view of the front derailleur illustrated in the Fig. 1 to 8, in which the chain guide is arranged in the extended position (ie the furthest position with respect to the bicycle frame); Fig. 10 is a rear elevational view of the front derailleur illustrated in the Fig. 1 to 9, in which the chain guide is arranged in the extended position (ie the furthest position with respect to the bicycle frame); Fig. 11 is an enlarged elevational view of a portion of the front derailleur illustrated in the Fig. 1 to 10, in which the chain guide is arranged in the extended position (ie the furthest position with respect to the bicycle frame) and in which the cable fastening member is removed; Fig. 12 is an enlarged elevation view similar to Fig. 11 of the section of the front derailleur but with the cable fastening member from the preset position to a first set position in a first direction (pulling direction) about the fixing axis; Fig. 13 is an enlarged elevation view similar to the Fig. 11 and Fig. 12 of the section of the front derailleur but with the cable fixing member adjusted from the preset position to a second adjusted position in a second direction (release direction) about the fixing axis; Fig. 14 is an enlarged perspective view of the portion of the front derailleur shown in the Fig. 11 to 13, but with the cable fastening member rotated about the fixing axis in the second direction (release direction) to more clearly illustrate the tool access sections of the cable fastening member and adjustment member. Fig. 15 is a perspective view of an upper portion of the front derailleur illustrated in the Fig. 1 to 13, depicting a tool shortly before insertion into the tool access section of the limiting structure into the openings of the cable fastening part; Fig. 16 is a perspective view of the upper portion of the front derailleur illustrated in Fig. 15, showing the tool inserted into the tool access portion of the cable fixing part opening limiting structure; Fig. 17 is an elevational view of the front derailleur section shown in Fig. 14 with the cable fastening member rotated about the fixing axis in the second direction (release direction) to more clearly illustrate the tool access portions of the cable fastening member and the adjusting member; Fig. 18 is an elevation view similar to Fig. 17 of the front derailleur section but with the cable attachment fastener removed to show the cable attachment member in contact with a stop or shoulder of the input connector; Fig. 19 is a cross-sectional view of the front derailleur input connector with the cable fixing member in the preset position; Fig. 20 is a cross-sectional view according to Fig. 19 of the front derailleur input connector but with the cable fixing link in the first set position; Fig. 21 is an exploded perspective view of selected parts of the front derailleur illustrated in the Fig. 1 to 13, as viewed from the front end and the frame-facing side of the front derailleur; Fig. 22 is an exploded perspective view of selected parts of the front derailleur illustrated in the Fig. 1 to 13, as viewed from the rear end and non-frame facing side of the front derailleur; Fig. 23 is a rear elevational view of a portion of a front derailleur according to a second illustrated embodiment; Fig. 24 is a rear elevational view of a portion of the front derailleur illustrated in Fig. 23 with selected parts exploded from the input connector; Fig. 25 is a rear elevational view of the front derailleur section illustrated in the Fig. 23 and Fig. 24 with a portion of the input connector broken away to illustrate the cable attachment structure; Fig. 26 is a first perspective view of a composite adjustment bolt used in conjunction with the front derailleurs of the first and second embodiments; Fig. 27 is a second perspective view of the compound adjustment bolt illustrated in Fig. 26; Fig. 28 is a side elevation view of the compound adjustment bolt illustrated in the Fig. 26 and Fig. 27; Fig. 29 is an end elevation view of the compound adjustment bolt illustrated in the Fig. 26 to 28; and Fig. 30 is an exploded perspective view of the composite adjustment bolt illustrated in the Fig. 26 to 29. Fig. 31 is a partial side elevational view of the bicycle frame of Fig. 1 but with the bicycle front derailleur mounted thereon according to a third embodiment; Fig. 32 is a front external perspective view of the front derailleur illustrated in Fig. 31; Fig. 33 is a rear external perspective view of the front derailleur illustrated in the Fig. 31 and Fig. 32; Fig. 34 is a front inside perspective view of the front derailleur illustrated in the Fig. 1 to 3; Fig. 35 is an external elevation view of the front derailleur illustrated in the Fig. 31 to 34; Fig. 36 is an inside elevation view of the front derailleur illustrated in the Fig. 31 to 35; Fig. 37 is a front elevational view of the front derailleur illustrated in the Fig. 1 to 6, with the chain guide in the retracted or retracted position; Fig. 38 is a front elevation view of the front derailleur illustrated in the Fig. 31 to 37 with the chain guide in the extended or pulled-out position; Fig. 39 is a rear elevational view of the front derailleur illustrated in the Fig. 31 to 38 with the chain guide in the retracted position; Fig. 40 is a rear elevational view of the front derailleur illustrated in the Fig. 31 to 39 with the chain guide in the extended position; Fig. 41 is a plan view of selected parts of the front derailleur illustrated in Fig. 31 to 39, illustrating the attachment of an inner wire to the bicycle cable fixing structure; Fig. 42 is an exploded perspective top view of the bicycle cable fixing structure and the input connector of the front derailleur illustrated in the Fig. 31 to 39; Fig. 43 is an exploded perspective bottom view of the bicycle cable fixing structure and the input connector of the front derailleur illustrated in the Fig. 31 to 39; Fig. 44 is a plan view similar to Fig. 41 of selected parts of the front derailleur illustrated in Fig. 41 but with the cover of the bicycle cable fixing structure removed; Fig. 45 is a plan view similar to Fig. 44 of selected parts of the front derailleur illustrated in Fig. 41 but removed with the mooring line and the fixing disc of the bicycle cable fixing structure; Fig. 46 is a plan view similar to Fig. 44 of selected parts of the front derailleur illustrated in Fig. 41 but rotated with the bicycle cable fixing structure to increase the tension in the inner wire; and Fig. 47 is a plan view similar to Fig. 46 of selected parts of the front derailleur illustrated in Fig. 41 but removed with the mooring line and the fixing disc of the bicycle cable fixing structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Selected embodiments will now be described with reference to the drawings. It will be apparent to one skilled in the bicycle art from this disclosure that the following descriptions of the embodiments are provided for illustration purposes only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.

[0037] Firstly, referring to Fig. 1, a portion of a bicycle 10 is illustrated, which is equipped with a bicycle derailleur 12 according to a first embodiment. Here, the bicycle derailleur 12 is mounted to a bicycle frame F of the bicycle 10. Specifically, the bicycle frame 12 is mounted to the seat tube of the bicycle frame F through a bracket B. Thus, the bicycle derailleur 12 is a front derailleur in the first embodiment. It will be apparent to one skilled in the bicycle art from this disclosure that certain aspects of the present invention can be applied to a rear derailleur. Accordingly, certain aspects of the present invention are not limited to a front derailleur as illustrated. For convenience, the bicycle derailleur 12 will be referred to hereinafter as the "front derailleur 12."

[0038] The front derailleur 12 is a cable-operated derailleur that is operated in a conventional manner in response to the actuation of a switch (not shown). In particular, the front derailleur 12 is operated by a control cable 14 having a first end connected to the front derailleur 12 and a second end connected to the switch. The control cable 14 is a conventional bicycle component control cable that includes an actuating cable 14a protected by an outer casing 14b. In other words, the control cable 14 is a Bowden-type cable in which the actuating cable 14a is slidably disposed within the outer casing 14b. The actuating cable 14a is a flexible cable, typically made of a metallic material such as stainless steel. The outer casing 14b is a flexible hollow tube, typically made of a plastic material, often lined with nylon.

[0039] The switch (not shown) actuates the front derailleur 12 by selectively pulling and releasing the actuating cable 14a in response to actuation of a switch. Consequently, the actuating cable 14a transfers mechanical force or energy from the switch (not shown) to the front derailleur 12 through the movement of the actuating cable 14a. It will be apparent to one skilled in the bicycle art from this disclosure that the actuating cable 14a may be used without the outer housing 14b.

[0040] Referring to the Fig. 2 to 7, the front derailleur 12 essentially comprises a base member 16, a chain guide 18, a link assembly 20, and a cable fixing structure 22. The chain guide 18 is configured to be movable between a retracted position and an extended position with respect to the base member 16 via the link assembly 20. In other words, the link assembly 20 operatively couples the chain guide 18 to the base member 16. Essentially, the chain guide 18 moves a chain C in a transverse direction with respect to a longitudinal center plane of the bicycle frame F. Specifically, the chain guide 18 is movably supported to the base member 16 by the link assembly 20 for moving the chain guide 18 relative to the base member 16 in response to the operation of the operation cable 14a. Here, the bicycle frame F is provided with a pair of chainrings S1 and S2.Of course, the bicycle frame F can be provided with more than two chainrings if needed and / or desired. The chain guide 18 is configured to shift the chain C between the chainrings S1 and S2 as the chain guide 18 moves between a retracted position and an extended position, depending on whether the actuating cable 14a is pulled or released.

[0041] More specifically, the cable fixing structure 22 is mounted to one of the chain guide 18 and the link assembly 20. Here, in the first embodiment, the cable fixing structure 22 is mounted to the link assembly 20. Specifically, in the first embodiment, the link assembly 20 includes an input connector 24 pivotally mounted to the base member 16 about a pivot axis A by a first pivot shaft X1.

[0042] As in the Fig. 6, Fig. 8 and Fig. As can be seen in Figure 11, the cable fixing structure 22 is mounted to the input connector 24. Consequently, the cable fixing structure 22 is configured to fix the actuating cable 14a, which moves the connecting assembly 20 in response to actuation of the actuating cable 14a. More specifically, in the first embodiment, when the chain guide 18 is in the retracted position, the chain guide 18 switches from the retracted position ( Fig. 6 to 8) into the extended position ( Fig. 9 to 11) in response to the actuating cable 14a being pulled. As will be explained below, the input connector 24 is biased such that the chain guide 18 is moved toward the retracted position ( Fig. 6 to 8). As a result of the actuating cable 14a being released, the cable fixing structure 22 and the input connector 24 rotate together about the pivot axis A in a first actuating direction D1. When the actuating cable 14a is pulled, the cable fixing structure 22 and the input connector 24 rotate together about the pivot axis A in a second actuating direction D2. Consequently, when the chain guide 18 is in the extended position, the chain guide 18 switches from the extended position ( Fig. 9 to 11) to the retracted position ( Fig. 6 to 8) in response to the actuating cable 14a being released.

[0043] Here, in the first embodiment, as in the Fig. 8 and Fig. As can be seen from Fig. 11, the cable fixing structure 22 essentially comprises a cable fixing member 26 to which the operating cable 14a is fixed. The cable fixing structure 22 is free from an outer casing holder to which one end of the outer casing 14b of the operating cable 14a is held. In the first embodiment, as explained later, the base member 16 is provided with an outer casing holder 16a. The cable fixing member 26 is movable with respect to one of the chain guide 18 and the connecting assembly 20 to which the cable fixing member 26 is mounted, in a state where the operating cable 14a is fixed to the cable fixing member 26. Thus, generally speaking, the bicycle cable fixing structure 22 is configured to fix the operating cable 14a, which moves a bicycle component (e.g., the front derailleur 12) in response to an operation of the operating cable 14a.

[0044] Here, in the first embodiment, the cable fastening member 26 has a fixing axis A2 of a mooring device 32 (explained below). In this embodiment, the fixing axis A2 and the pivot axis A1 are substantially parallel to each other. The cable fastening member 26 is rotatably mounted around the fixing axis A2 of the mooring device 32. The cable fastening member 26 is configured to rotate in a cable pulling direction R1 and a cable releasing direction R2 around the fixing axis A2 of the mooring device 32 relative to the connecting assembly to which the cable fastening member 26 is mounted. The cable fastening member 26 is configured to be movable in the cable pulling direction R1 in a state where the operating cable 14a is / will be fixed to the cable fastening member 26.In other words, the cable fixing member 26 is movable relative to the input connector 24 about the fixing axis A2 while the actuating cable 14a is fixed to the cable fixing member 26. As explained below, this arrangement allows the tension in the actuating cable 14a to be adjusted while the actuating cable 14a is fixed to the cable fixing member 26.

[0045] The cable fixing member 26 includes a cable clamping portion 26a to which the operating cable 14a is clamped. The cable clamping portion 26a of the cable fixing member 26 is formed by a mounting part 28 and a fixing disk 30. The mounting part 28 is rotatably mounted to the input connector 24 for rotation about the fixing axis A2 within a predefined range of motion. The cable fixing structure 22 further includes the fixing fastener 32 (i.e., a fixing bolt) for fixing the operating cable 14a to the cable fixing member 26. Specifically, the fixing fastener 32 presses the fixing disk 30 against the mounting part 28 once the fixing fastener 32 is tightened to clamp the operating cable 14a therebetween. In this way, the cable fixing member 26 is configured to have the actuating cable 14a fixed thereto by the mooring device 32.Thus, the mounting part 28, the fixing disc 30, and the mooring device 32 define a cable clamp that fixes the actuating cable 14a to the cable fastening member 26. The mooring device 32 extends through the cable fastening member 26 in a direction of the fixing axis A2. The fixing axis A2 coincides with the longitudinal center axis of the mooring device 32. The mooring device 32 has a threaded shaft 32a and a head 32b. The mounting part 28 includes a threaded bore 28a for threadably engaging the threaded shaft 32a of the mooring device 32. The fixing disc 30 includes a non-threaded bore 30a for the threaded shaft 32a of the mooring device 32 to pass therethrough. The mounting part 28 also includes three tabs 28b that engage with three recesses or notches 30b in the fixing disc 30 such that the fixing disc 30 does not rotate relative to the mounting part 28 about the fixing axis A2.Here, the surface of the mounting part 28 that contacts the fixing disc 30 has a groove 28c to accommodate the actuating cable 14a.

[0046] The cable fastening member 26 includes a limiting structure 34 configured to selectively limit movement of the cable fastening member 26 in the cable pulling direction R1. The limiting structure 34 is integrally formed with the mounting part 28. The mounting part 28 and the limiting structure 34 are configured with respect to the input connector 24 to form a twist-mounting arrangement similar to a bayonet mount for attaching the cable fastening member 26 to the input connector 24. The attachment of the cable fastening member 26 to the input connector 24 will be explained below. The limiting structure 34 is used to prevent rotation of the mounting part 28, together with the fastener 33, relative to the input connector 24 when the actuating cable 14a is fixed to the cable fastening member 26.It will be explained below how the rotation of the mounting part together with the mooring device 32 is limited or restricted by using the limiting structure.

[0047] With reference to the Fig. 14 to 19, the limiting structure 34 includes a first tool access section 34a, which is designed for a tool T ( Fig. 15, Fig. 16 and Fig. 19) to allow access to limit the movement of the cable fastening member 26 in the cable pulling direction R as explained below. In the first embodiment, the first tool access portion 34a is a cylindrical bore dimensioned to accommodate a 2 mm hex wrench, for example. By inserting the tool into the first tool access portion 34a, the cable fastening member 26 can be held in a predetermined position with respect to the input connector 24. As explained below, the first tool access portion 34a assists in adjusting the cable fastening member 26 to the predetermined position. The limiting structure 34 is not limited to only a first tool access portion to be actuated by the tool T. The limiting structure 34 may include a limiting member, such as a pin, which may be selectively orselectively engages / comes into engagement with the input connector 24 to limit the movement of the limiting structure 34 of the cable fastening member 26. Alternatively, the limiting member may be provided on the input connector 24 to engage / come into engagement with a portion of the cable fixing structure 22.

[0048] In the first embodiment, the bicycle cable fixing structure 22 further includes a cable tension adjustment structure 36. Thus, in the first embodiment, the bicycle cable fixing structure 22 essentially includes the cable fixing member 26 and the cable tension adjustment structure 36. The cable tension adjustment structure 36 is configured to move the cable fixing member 26 relative to one of the chain guide 18 and the connecting assembly 20 to which the cable fixing member 26 is / will be mounted. Preferably, the cable tension adjustment structure 36 includes an adjustment member 36a for adjusting a position of the cable fixing member 26 with respect to one of the chain guide 18 and the connecting assembly 20 to which the cable fixing member 26 is / will be mounted. More specifically, the adjusting member 36a is a screw that is screwed or threadably engaged into a bore of one of the chain guide 18 and the connecting assembly 20.Here, the adjusting member 36a is screwed into a bore 24a of the input connector 24 of the connecting assembly 20.

[0049] In the illustrated embodiment, as shown in the Fig. 6 and Fig. 9, the base member 16 includes a first indicator 38 (i.e., indication) and the connecting assembly 20 includes a second indicator 39 (i.e., indication) on the input connector 24. The first and second indicators 38 and 39 are aligned with each other while the input connector 24 of the connecting assembly 20 is in a first initial position ( Fig. 9) with respect to the base member 16. The first and second indicators 38 and 39 are misaligned with each other while the input connector 24 of the connector assembly 20 is in a second initial position with respect to the base member 16. The first and second indicators 38 and 39 are arranged to indicate a suitable relative position between the input connector 24 and the base member 16 when the tension of the actuating cable 14a is adjusted by the adjustment structure 36.

[0050] Now, a tensioning operation of the actuating cable 14a will be explained. Essentially, there are two tensioning stages in a tensioning operation of the actuating cable 14a. During the first tensioning stage, the adjusting member 36a is rotated to be screwed into the input connector 24, causing the tip of the adjusting member 36a to be pressed against the cable fastening member 26 to rotate the cable fastening member 26 about the fixing axis A2 in the cable pulling direction R1. Once the cable fastening member 26 is rotated about the fixing axis A2, the actuating cable 14a is pulled, and tension on the actuating cable 14a is increased. In the first tensioning stage, only the cable fastening member 26 rotates relative to the input connector 24 about the fixing axis A2, and the tension of the actuating cable 14a is increased.The second tightening stage occurs after the first tightening stage, when the tension of the actuating cable 14a has been increased to a point where the actuating cable 14a cannot be further deformed or is difficult to deform under strong tension. Consequently, during the second tightening stage, the adjusting member 36a is rotated to be further screwed into the input connector 24. This further rotation of the adjusting member 36a causes both the cable fastening member 26 and the input connector 24 to rotate. More specifically, during the second tightening stage, the cable fastening member 26 rotates relative to the input connector 24 about the fixing axis A2 in the cable pulling direction R1.However, the tension of the actuating cable 14a is not reduced, but rather, this relative rotation of the cable fastening member 26 during the second tensioning stage is a result of the input connector 24 rotating relative to the base member 16a at the first pivot axis X1 in the second actuating direction D2. As the input connector 24 rotates relative to the base member 16 at the first pivot axis X1, the chain guide 18 is moved in an outward direction away from the frame F. Consequently, as the adjusting member 36a is rotated during the second tensioning stage, the chain guide 18 moves (pivots) with respect to the base member 16 to set an initial position of the chain guide 18 relative to the base member 16.During the tensioning operation, the user can know the appropriate tension, a suitable initial position of the link assembly and a suitable initial position of the chain guide 18 relative to the base member 16 have been achieved when the second indicator 39 on the input connector 24 points to the first indicator 38 on the base member 16.

[0051] With reference to the Fig. 12, Fig. 13, Fig. 19 and Fig. 20, the adjusting member 36a includes a second tool access section 36b, which is designed for the tool T ( Fig. 19) to provide access to actuate the adjustment member 36a. The second tool access portion 36b is arranged relative to one of the chain guide 18 and the link assembly 20 to inhibit the tool T from accessing the second tool access portion 36b while the chain guide 18 is positioned in one of the retracted position and the extended position.

[0052] Here, as in Fig. As can be seen in Figure 8, the second tool access portion 36b is inaccessible by actuation by the tool T while the chain guide 18 is positioned in the retracted position. This arrangement can guide the user to adjust tension of the actuating cable 14a while the chain guide 18 is positioned in the other of the retracted position and the extended position, which is a more suitable position for adjusting the tension of the actuating cable 14a than the other of the retracted position and the extended position. In the first illustrated embodiment, the second tool access portion 36b is a blind hole with a hexagonal cross-section. The first and second tool access portions have profiles configured such that the tool T (e.g., a 2 mm hex wrench) can access both the first and second tool access portions 34a and 36b.Therefore, the user can use the same tool T to prevent rotation of the mounting part 28 together with the mooring 32 relative to the input connector 24 and to adjust a tension of the actuating cable 14a.

[0053] In the illustrated embodiment, the cable tension adjustment structure 36 is provided on the input connector 24 of the connector assembly 20. As a result, the cable tension adjustment structure 36 is configured to move the cable fastening member 26 relative to the input connector 24 of the connector assembly 20. The adjustment member 36a is configured to abut or contact the cable fastening member 26 to limit movement of the cable fastening member 26 in the cable release direction R2. Thus, in the first embodiment, the cable fastening member 26 is configured to selectively rotate in the cable pulling direction R1 and the cable release direction R2 by actuating the adjustment member 36a. In other words, if the adjusting member 36a is screwed into the bore 24a of the input connector 24 of the connecting assembly 20, then the cable fixing member 26a is configured to rotate in the cable pulling direction R1 about the fixing axis A2.In other words, if the adjustment member 36a is unscrewed from the input connector 24 of the connector assembly 20, the cable fastening member 26 is configured to rotate in the cable release direction R2 toward the fixing axis A2 by tensile force via the actuating cable 14a. In this manner, the adjustment member 36a is configured to abut or contact the cable fastening member 26 to define an angular position of the cable fastening member 26 about the fixing axis A2 with respect to the input connector 24. The adjustment member 36a of the cable tension adjustment structure 36 is configured to rotate the cable fastening member 26 in a direction parallel to a first reference plane PL (see FIG. Fig. 4 and Fig. 5), which is perpendicular to the fixing axis A2, in a state where the operating cable 14a is / will be fixed to the cable fixing member 26. Specifically, the cable fixing member 26 rotates in a direction parallel to the first reference plane PL.

[0054] How best in Fig. 1, the base member 16 is designed to be mounted to the bicycle frame F. Essentially, the base member 16 is fixedly connected to the bracket B on a seat tube of the bicycle frame F by a mounting screw S, as shown in Fig. 1. The screw S is threaded into a threaded hole 16b of the base member 16. While the base member 16 is illustrated as a brazed mounting structure, the base member 16 is not limited to this type of mounting structure. For example, the base member 16 of the front derailleur 12 may be replaced with a base member having a clamp band type of bicycle mounting portion, if needed and / or desired.

[0055] In the first embodiment, as explained above, the outer casing holder 16a is provided on the base member 16 and constitutes an outer casing 14b receiving part in which one end of the outer casing 14b of the operating cable 14a is held. The outer casing holder 16a is a stepped through-hole that receives one end portion of the outer casing 14b through an inlet end of the through-hole such that the operating cable 14a passes outwardly through an outlet end of the through-hole. Here, in the illustrated embodiment, the outer casing holder 16a and the base member 16 are formed as an integral member. However, it will be apparent from this disclosure that the outer casing holder 16a may also be a separate member from the base member 16 and may be attached to the bicycle frame F.

[0056] With reference to the Fig. 2 to 7, the connecting assembly 20 will now be explained in further detail. The connecting assembly 20 pivotally connects the chain guide 18 to the base member 16. In addition to the input connector 24, the connecting assembly 20 further includes a first connector 40 and a second connector 42. The first and second connectors 40 and 42 pivotally couple the chain guide 18 to the base member 16. The connecting assembly 20 further includes at least one terminal connector 44 operatively connecting the input connector 24 to one of the first and second connectors 40 and 42. In the first illustrated embodiment, the connecting assembly 20 further includes an extension connector 46 for operatively connecting the input connector 24 to the first connector 40. In the first illustrated embodiment, the terminal connector 44 connects the input connector 24 to the first connector.In this way, the actuation of the actuating cable 14a causes the chain guide 18 to move with respect to the base link 16 via the connecting assembly 20.

[0057] How best in en Fig. 6 to 10, the connections of the link assembly 20 between the base link 16 and the chain guide 18 will now be explained. The first connector 40 has a first end portion pivotally mounted to the base link 16 via a second pivot shaft X2 and has a second end portion pivotally mounted to the chain guide 18 by a third pivot shaft X3. The second connector 42 has a first end portion pivotally mounted to the base link 16 by a fourth pivot shaft X4 and has a second end portion pivotally mounted to the chain guide 18 by a fifth pivot shaft X5. Thus, the base link 16, the chain guide 18, and the first and second connectors 40 and 42 define the four-link connection.The connecting connector 44 has a first end portion pivotally coupled to the input connector 24 by a sixth pivot shaft X6 and a second end portion pivotally coupled to the extension connector 46 by a seventh pivot shaft X7. The extension connector 46 is pivotally mounted to the second pivot shaft X2 and transmits the movement of the input connector 24 to the first connector 40 via the connecting connector 44. During actuation of the actuating cable 14a, the extension connector 46 pivots about the second pivot shaft X2 and transmits the actuating force to the first connector 40 of the connecting assembly 20. At the same time, the second connector 42 pivots about the fourth and fifth pivot shafts X4 and X5.

[0058] In the illustrated embodiment, as shown in the Fig. 6 to 11, the connector assembly 20 preferably includes a first adjustment member M1, a second adjustment member M2, and a support member M3. Each of the first and second adjustment members M1 and M2 and the support member M3 is a screw. The first adjustment member M1 is threaded into a threaded hole in the first connector 40 and has a free end abutting against an end of the extension connector 46. By screwing in or out the first adjustment member M1, an angular position of the extension connector 46 with respect to the first connector 40 about the second pivot shaft X2 can be adjusted. Of course, it will be appreciated from this disclosure that the first connector 40 and the extension connector 46 may be formed as a single member if needed and / or desired.The second adjustment link M2 is screwed into a threaded hole in the second connector 42 and has a free end that abuts or abuts the base link 16. By screwing in or unscrewing the second adjustment link M2, an end point of the retracted position of the chain guide 18 can be set. Consequently, the second adjustment link M2 limits the movement of the chain guide 18 toward the bicycle frame F by abutting against the base link 16 to create the end point of movement of the chain guide 18. The support link M3 is screwed into a threaded hole in the base link 16 and has a free end that abuts or abuts the bracket B or the bicycle frame F. By screwing in or unscrewing the support link M3, the angle of the chain guide 18 with respect to the longitudinal center plane and vertical center plane can be adjusted.The support member M3 can support the base member 16 such that the base member 16 does not move relative to the bicycle frame F during a shifting operation of the chain guide from the retracted position to the extended position. Since the adjustment members are well known in the bicycle field, the first and second adjustment members M2 and M3 and the support member M3 will not be further explained herein.

[0059] With reference to the Fig. 2 to 7, the chain guide 18 is explained in further detail. In the first illustrated embodiment, the chain guide 18 includes a first guide plate 18a and a second guide plate 18b. The first and second guide plates 18a and 18b form a chain receiving slot therebetween. As explained above, the chain guide 18 is pivotally coupled to the base member 16 by the first and second connectors 40 and 42 of the link assembly 20. In particular, the chain guide 18 is pivotally coupled to the first and second connectors 40 and 42 to move between the retracted position (i.e., at the left end in the Fig. 8 and Fig. 9) and the extended position (ie at the right end in the Fig. 8 and Fig. 9). The first guide plate 18a is connected to the second guide plate 18b by a first or upper connecting portion 18c and a second or rear connecting portion 18d. In the illustrated embodiment, the first connecting plate 18a, the second connecting plate 18b, the first connecting portion 18c, and the second connecting portion 18d are formed as a single unitary link by bending a single piece of sheet metal. The chain guide 18 further includes a U-shaped attachment part 18e, which is fixed (e.g., riveted) to the first connecting portion 18c. As best shown in the Fig. 6 and Fig. As can be seen in Figure 7, the first guide plate 18a is pivotally connected to the first connector 40 by the third pivot shaft X3. The fixing portion 18e is pivotally connected to the second connector 42 by the fifth pivot axis X5.

[0060] In the first illustrated embodiment, as shown in Fig. 3, the chain guide 18 is biased in the retracted position relative to the base member 16 by a biasing member 48. The biasing member 48 has a wrapped portion 48a disposed around the third pivot shaft X3. The biasing member 48 has a first free end portion 48b contacting the first connector 40 and a second free end portion 48c contacting the first link plate 18a. Thus, the biasing member 48 is operatively disposed between the base member 16 and the chain guide 18. The biasing member 48 biases the chain guide 18 toward the retracted position such that the chain guide 18 is positioned over the small chainring S1. Thus, in the first illustrated embodiment, the retracted position (i.e., at the left end in the Fig. 8 and Fig. 9) represents an initial state or a rest position of the chain guide 18, in particular, the biasing member 48 holds the chain guide 18 in the retracted position while the actuating cable 14a is released or removed from the front derailleur 12.

[0061] In the first illustrated embodiment, the biasing member 48 and the link assembly 20 are arranged with respect to the base member 16 and the chain guide 18 to form a downswing derailleur. The downswing derailleur refers to a derailleur having a chain guide mounted on the lower pivot axis of the four-link linkage that supports it. The outer casing holder 16a and the cable fixing member 26 are arranged with respect to the base member 16 to form a bottom-pull derailleur. The button-pull derailleur refers to a derailleur having an operating cable 14a that is pulled in a downward direction to move the chain guide 18 against the biasing force of the biasing member 48 while the bicycle frame F is in a level, upright position.The actuating cable 14a is often routed over the upper or along a lower portion of a bottom bracket shell of the bicycle frame F to an actuating cable guide (not shown), which redirects the actuating cable 14a upward along the lower portion of a down tube of the bicycle frame F to a shifter in a conventional manner. Thus, in the first illustrated embodiment, the front derailleur 12 is a button-pull derailleur.

[0062] Mainly referring to the Fig. 21 and Fig. 22, the input connector 24 will now be explained in further detail. The input connector 24 essentially includes a pivot portion 50, a terminal connector coupling portion 52, and a cable fixing portion 54. The pivot portion 50 is configured to pivotally attach the input connector 24 to the base member 16. In particular, the pivot portion 50 has a pivot shaft receiving bore 50a for receiving the first pivot shaft X1. The terminal connector coupling portion 52 is configured to pivotally attach the terminal connector 44 to the input connector 24, as shown in Fig. 6 can be seen.

[0063] The cable fastening part 54 has a bore 54a and a curved recess 54b for rotatably supporting the cable fastening member 26 on the input connector 24. Specifically, the mounting part 28 is received in the bore 54a, while the limiting structure 34 is received in the curved recess 54. The cable fastening member 26 is installed on the input connector 24 by first inserting the mounting part 28 into the bore 54a and then rotating the limiting structure 34 into the curved recess 54. In this manner, the cable fastening member 26 cannot be removed from the input connector 24 by pulling the cable fastening member 26 along the fixing axis A2. Thus, a twist-mounting arrangement similar to a bayonet mount is formed for attaching the cable fastening member 26 to the input connector 24.

[0064] As in the Fig. 15, Fig. 16, Fig. 21 and Fig. 22, the cable fastening part 54 also includes a pair of openings 54c and 54d that provide access to the first tool access portion 34a (i.e., an opening). In particular, the first tool access portion 34a (i.e., an opening) can be aligned with the openings 54c and 54d by use of the tool T, such that the cable fastening member 26 can be adjusted to the predetermined position with respect to the input connector 24. Thus, by aligning the first tool access portion 34a (i.e., an opening) with the openings 54c and 54d, the user can reset the cable fastening member 26 back to the predetermined position after previously adjusting the position of the cable fastening member 26 with respect to the input connector 24.In a state where the tool T is inserted into the tool access portion 34a and the openings 54c and 54d, the user can fix the operating cable 14a to the cable fixing structure to prevent the rotation of the mounting part 28 together with the fastener 32 relative to the input connector 24.

[0065] The front derailleur 12 further includes at least one biasing member 56 disposed between the first pivot axis X1 and the input connector 24. In the illustrated embodiment, the front derailleur 12 includes two bearing members 56 disposed on either side of the input connector 24. Specifically, the input connector 24 includes a pair of recesses 50b disposed on opposite sides of the pivot portion 50 for receiving the bearing members 56. Preferably, the bearing members 56 are either sealed bearings comprising inner and outer races with rolling members therebetween, or a single race made of a material (e.g., nylon) having a lower coefficient of friction than the material (e.g., aluminum alloy) of the input connector 24. Preferably, each of the bearing members 56a includes a pivot axis receiving opening 56a for receiving the first pivot axis X1.The pivot axis receiving bore 50a is slightly larger than the pivot axis receiving openings 56a such that the first pivot axis X1 does not contact the input connector 24. The bearing members 56 can be replaced with bushings to reduce friction relative to the first pivot axis X1.

[0066] Now referring to the Fig. 24 and Fig. 25, a modified front derailleur 112 will now be explained. Essentially, the front derailleur 112 is identical to the front derailleur 12, except that the input connector 24 and the cable fixing structure 22 of the front derailleur are replaced with a modified input connector 124 and a cable fixing structure 122. Given the similarity between the front derailleurs 12 and 112, the derailleur 112 will only be briefly explained for the sake of brevity. Furthermore, the parts of the derailleur 112 that are identical or identical in function to the corresponding parts of the derailleur 12 are provided with the same reference numerals.

[0067] The cable fixing structure 122 is mounted on the input connector 124. The cable fixing structure 122 essentially comprises a cable fixing member 126 to which the operating cable 14a is fixed. The cable fixing structure 122 further includes a fastener 132 (i.e., a fixing bolt) for slidably mounting the cable fixing member 126 to the input connector 124. In the second embodiment, the bicycle cable fixing structure 122 further includes a cable tension adjusting structure 136. Thus, the cable fixing structure 122 is configured to fix the operating cable 14a to the input connector 124 and to adjust the tension of the operating cable 14a relative to the input connector 124. Here, the cable tension adjusting structure 136 includes an adjusting member 136a that is inserted into a bore 124a ( Fig. 25) of the input connector 124.

[0068] The input connector 124 has a slot 124b ( Fig. 25) which receives the mooring device 132 which is fixed to the cable fastening member 126. In particular, the cable fastening member 126 has a threaded bore 137 into which the mooring device 132 is screwed to secure the cable fastening member 126 for sliding movement within a recess 134c ( Fig. 25). A threaded shaft 139a of a cable clamping portion 126a (explained below) defines a fixing axis A2, which is a longitudinal center axis of the threaded shaft 139a. Here, in the second embodiment, the cable fixing member 126 is configured to be slidable in a direction parallel to the first reference plane PL, which is perpendicular to the fixing axis A2, during a state where the operating cable 14a is fixed to the cable fixing member 126. The cable fixing member 126 includes the cable clamping portion 126a to which the operating cable 14a is clamped. The cable clamping portion 126a of the cable fixing member 126 is formed by the threaded shaft 139a and a fixing nut 139b. Preferably, the input connector 124 has an opening 124d for receiving a tool, such as tool T (see Fig. 19). The cable attachment member 126 has an opening 126d (ie, a first tool access portion) for receiving a tool, such as tool T (see Fig. 17). In particular, the opening 126d may be aligned with the opening 124d such that the cable fastening member 126 may be adjusted to the predetermined position with respect to the input connector 124.

[0069] Now referring to the Fig. 26 to 30, a compound adjustment screw 200 is illustrated. One or some of the adjustment screws M1, M2, M3, and 36a may be replaced by the compound adjustment screw 200 if needed and / or desired. The compound adjustment screw 200 is formed from at least two pieces. In particular, the compound adjustment screw 200 includes a screw body 202 and an insert member 204. The screw body 202 and the insert member 204 are made of different materials. The screw body 202 is preferably made of a hard, rigid material, such as a metallic material. The insert member 204 is preferably made of a material, such as a plastic material (i.e., nylon), that is resistant to loosening due to vibration or the like. The screw body 202 has a tool access portion 206 and an external thread 208.In the first illustrated embodiment, the tool access portion 206 is a blind hole with a hexagonal cross-section for receiving, for example, a two-millimeter hex wrench. The screw body 202 also includes a recess 210 for receiving the insert member 204. The insert member 204 may be adhesively and / or frictionally attached to the screw body 202. Here, the insert member 204 includes three leg portions 204a and a connecting portion 204b. The connecting portion 204b connects the leg portions 204a. While the insert member 204 is illustrated as a single unitary member having a uniform construction (e.g., cast), the insert member 204 may be manufactured from various individual pieces. Also, while the leg portions 204a are illustrated with grooves that substantially form portions of the external thread 208, the grooves of the leg portions 204 may be omitted.In any case, preferably, the leg portions 204 are configured to project outwardly relative to the external thread 208 of the screw body 202 such that the leg portions 204a are deformed when screwed into a threaded hole having an internal thread that mates with the external thread 208.

[0070] Firstly, referring to Fig. 31, the bicycle 10 as illustrated is equipped with a bicycle derailleur 312 according to a third embodiment. Here, the derailleur 312 is mounted on the bicycle frame F of the bicycle 10 instead of the derailleur 312. Specifically, the derailleur 312 is mounted on the seat tube T of the bicycle frame F through the bracket B and connected to the operating cable 14a in the same manner as the third embodiment.

[0071] Referring to the Fig. 32 to 40, the bicycle derailleur 312 essentially comprises a base member 316, a chain guide 318, a link assembly 320, and a cable fixing structure 322. Essentially, the base member 316 is fixedly mounted to the bicycle frame F in a conventional manner. The chain guide 318 is movably supported to the base member 316 by the link assembly 320 for moving the chain guide 318 relative to the base member 316. Thus, the link assembly 320 operatively couples the chain guide 318 to the base member 316. The cable fixing structure 322 is configured to fix the actuating cable 14a, which moves the link assembly 320 in response to actuation of the actuating cable 14a. Specifically, the inner wire is attached to the link assembly 320, which receives the input force from a gear shift actuator to shift the chain guide 318.In this way, the actuation of the actuating cable 14a causes the chain guide 318 to move with respect to the base link 316.

[0072] More specifically, the cable fixing structure 322 is mounted to one of the chain guide 318 and the connecting assembly 320. Here, in the third embodiment, the cable fixing structure 322 is mounted to the connecting assembly 320. Specifically, in the third embodiment, the connecting assembly 320 includes an input connector 324 pivotally mounted to the base member 316 with respect to a pivot or mounting axis A1 through a first pivot axis X1.

[0073] How best to Fig. 40 to 47, the cable fixing structure 322 is mounted to the input connector 324. Consequently, the cable fixing structure 322 is configured to fix the actuating cable 14a, which moves the connecting assembly 320 in response to actuation of the actuating cable 14a. More specifically, in the first illustrated embodiment, when the chain guide 318 is in the retracted position, the chain guide 318 switches from the retracted position ( Fig. 37 and Fig. 39) to the extended position ( Fig. 38 and Fig. 40) in response to the actuating cable 14a being pulled. As explained below, the input connector 324 is biased such that the chain guide 318 is moved toward the retracted position ( Fig. 37 and Fig. 39). As a result of the actuating cable 14a being released, the cable fixing structure 322 and the input connector 324 rotate together with respect to the pivot axis A1 in a first actuating direction B1. When the actuating cable 14a is pulled, the cable fixing structure 322 and the input connector 324 rotate together with respect to the pivot axis A1 in a second actuating direction D2. Consequently, when the chain guide 318 is in the extended position, the chain guide 318 switches from the extended position ( Fig. 38 and Fig. 40) to the retracted position ( Fig. 37 and Fig. 39), in response to the actuating cable 14a being released.

[0074] Here, in the third embodiment, as in the Fig. As shown in FIGS. 41 to 47, the cable fixing structure 322 includes a cable fixing member 326 to which the operating cable 14a is fixed. The cable fixing structure 322 is free from an outer casing holder in which one end of the outer casing 14b for the operating cable 14a is held. In the third embodiment, as explained later, the base member 316 is provided with an outer casing holder 316a. The cable fixing member 326 is movable with respect to one of the chain guide 318 and the link assembly 320 to which the cable fixing member 326 is mounted, in a state where the operating cable 14a is mounted to the cable fixing member 326. Accordingly, the cable fixing structure 322 is generally configured to fix the operating cable 14a, which moves a bicycle component (e.g., the front derailleur 312) in response to an operation of the operating cable 14a.

[0075] Here, in the third embodiment, the cable fixing structure 322 includes a mooring device 332 for fixing the operating cable 14a to the cable fixing member 326. The mooring device 326 extends through the cable fixing member 326 in a direction of a fixing axis A2. The cable fixing member 326 is rotatably mounted with respect to the fixing axis A2 of the mooring device 332. In this embodiment, the fixing axis A2 and the pivot axis A1 are transverse (not parallel) to each other, as viewed from a direction perpendicular to both the pivot axis A1 and the fixing axis A2.

[0076] As in the Fig. As can be seen from Figures 41 to 47, the cable fastening member 326 is rotatably mounted to the input connector 324. The cable fastening member 326 is configured to selectively rotate in a cable pulling direction R1 and a cable releasing direction R2 with respect to the fixing axis A2 of the mooring device 332 relative to the connecting assembly 320 to which the cable fastening member 326 is mounted. The cable fastening member 326 is configured to be movable in the cable pulling direction R1 in a state where the operating cable 14a is fixed to the cable fastening member 326. In other words, the cable fastening member 326 is movable with respect to the input connector 324 with respect to the fixing axis A2 while the operating cable 14a is fixed to the cable fastening member 326. As explained below, this arrangement allows the tension in the actuating cable 14a to be adjusted while the actuating cable 14a is fixed to the cable fixing member 326.

[0077] The cable fixing member 326 includes a cable clamping portion 326a to which the operating cable 14a is clamped. The cable clamping portion 326a of the cable fixing member 326 is formed by a mounting part 328 and a fixing disk 330. The mounting part 328 is rotatably connected to the input connector 324 for rotation about the fixing axis A2 with a predefined range of motion. The cable fixing structure 322 further includes the fixing fastener 332 (i.e., a fixing bolt) for fixing the operating cable 14a to the cable fixing member 326. Specifically, the fixing fastener 332 presses the fixing disk 330 against the mounting part 328 when the fixing fastener 332 is tightened to clamp the operating cable 14a therebetween. In this way, the cable fixing member 326 is configured to have the actuating cable 14a fixed thereto by the mooring device 332.Thus, the mounting part 328, the fixing disc 330, and the mooring device 332 define a cable clamp that fixes the actuating cable 14a to the cable fastening member 326. The mooring device 332 extends through the cable fastening member 326 in a direction of the fixing axis A2. The fixing axis A2 coincides with the longitudinal center axis of the mooring device 332. The mooring device 332 has a threaded shaft 332a and a head 332b. The mounting part 328 includes a threaded bore 328a for threadably engaging the threaded shaft 332a of the mooring device 332. The fixing disc 330 includes a non-threaded bore 330a for the threaded shaft 332a of the mooring device 332 to pass therethrough. Here, the surface of the mounting part 328 that contacts the fixing disk 330 has a groove 328b for receiving the actuating cable 14a.

[0078] The cable fastening member 326 includes a limiting structure 334 configured to selectively limit movement of the cable fastening member 326 in the cable direction R1. The limiting structure 334 is integrally formed with the mounting part 328. The limiting structure 334 includes a first stop 334a and a second stop 334b. The mounting part 328 and the limiting structure 334 are configured with respect to the input connector 324 to form a twist-on mounting arrangement, similar to a bayonet mount, for attaching the cable fastening member 326 to the input connector 324. The attachment of the cable fastening member 326 to the input connector 324 is explained below.The limiting structure 334 is used to prevent rotation of the mounting part 328 together with the mooring device 332 relative to the input connector 324 when the actuating cable 14a is fixed to the cable fastening member 326. It will be explained below how the rotation of the mounting part 328 together with the mooring device 332 is restricted or limited using the limiting structure 334.

[0079] In the third embodiment, the cable fixing structure 322 further includes a cable tension adjustment structure 336. The cable tension adjustment structure 336 is provided on the input connector 324 of the connecting assembly 20. Thus, in the third embodiment, the cable fixing structure 322 essentially comprises the cable fastening member 326 and the cable tension adjustment structure 336. The cable tension adjustment structure 336 is configured to move the cable fastening member 326 relative to one of the chain guide 318 and the connecting assembly 320 to which the cable fastening member 326 is mounted. Preferably, the cable tension adjustment structure 336 includes an adjustment member 336a for adjusting a position of the cable fastening member 326 with respect to one of the chain guide 318 and the connecting assembly 320 to which the cable fastening member 326 is mounted.More specifically, the adjustment member 336a is a screw that is threaded into a hole of one of the chain guide 318 and the connecting assembly 320. Here, the adjustment member 336a is threaded into a hole 324a of the input connector 324 of the connecting assembly 320. The adjustment member 336a contacts the first stop 334a of the limiting structure 334, while the locking disc 330 contacts the second stop 334b ​​such that the locking disc 330 and the limiting structure 334 rotate together about the locking axis A2. By rotating the adjustment member 336a, the adjustment member 336a allows the limiting structure 334 to rotate in either the cable pulling direction R1 or the cable releasing direction R2. Accordingly, the cable tension adjustment structure 336 is configured to move the cable fastening member 326 relative to the input connector 324.

[0080] The tension adjustment operation of the actuating cable 14a will now be explained. Essentially, the adjusting member 336a is rotated clockwise to be screwed into the input connector 334, causing the tip of the adjusting member 336a to press against the first stop 334a of the limiting structure 334 to rotate the cable fastening member 326 relative to the fixing axis A2 in the cable pulling direction R1. As the cable fastening member 326 rotates relative to the fixing axis A2, the inner actuating cable 14a is pulled, and the tension on the inner actuating cable 14a is increased.When the adjusting member 336a is rotated in a counterclockwise direction to be screwed out of the input connector 324, the tip of the adjusting member 336a moves in an opposite direction from the first stopper 334a of the restriction structure 334, such that the cable fixing member 326 rotates together with the adjusting member 336a with respect to the fixing axis A2 in the cable releasing direction R2 by a pulling force of the inner operating cable 14a.

[0081] In the third embodiment, the cable tension adjustment structure 336 is provided on the input connector 324 of the connector assembly 320. As a result, the cable tension adjustment structure 336 is configured to move the cable fastening member 326 relative to the input connector 324 of the connector assembly 320. The adjustment member 336a is configured to abut the cable fastening member 326 to restrict movement of the cable fastening member 326 in the cable release direction R2. Thus, in the third embodiment, the cable fastening member 326 is configured to selectively rotate in the cable pulling direction R1 and the cable release direction R2 by the operation of the adjustment member 336a. In other words, if the adjustment member 336a is screwed into the bore 324a of the input connector 324 of the connecting assembly 320, then the cable fixing member 326 is configured to rotate in the cable pulling direction R1 with respect to the fixing axis A2.On the other hand, if the adjustment member 336a is unscrewed from the input connector 334 of the connector assembly 320, the cable fastening member 326 is configured to rotate in the cable release direction R2 with respect to the fixing axis A2 by tensile force via the actuating cable 14a. In this way, the adjustment member 336a is configured to abut the first stop 334a of the cable fastening member 326 to define an angular position of the cable fastening member 326 with respect to the fixing axis A2 with respect to the input connector 324. In other words, the adjustment member 336 is configured to abut the second stop 334b ​​of the cable fastening member 326 to restrict movement of the cable fastening member 326 in the cable release direction R2.The adjustment member 336a of the cable tension adjustment structure 336 is configured to adjust the cable fixing member 326 in a direction parallel to a second reference plane PL2 (see . Fig. 40) perpendicular to the fixing axis A2, while the operating cable 14a is fixed to the cable fixing member 326. Specifically, the cable fixing member 326 rotates in a direction parallel to the reference plane PL.

[0082] The adjusting member 336a is disposed on a downstream side of the second stopper 334b ​​with respect to a fixing direction. The fixing direction is defined as a rotational direction of the fastener 332 for fixing the operating cable 14a to the cable fixing member 326. Therefore, when the fastener 332 is rotated to fix the operating cable 14a to the cable fixing member 326, the cable fixing member 326 is prevented from rotating together with the fastener 332 by abutting the second stopper 334b ​​against the adjusting member 336a. Consequently, in the third embodiment, the tool for preventing rotation of the cable fixing member used in the first embodiment is not required. The adjusting member 336a includes a second tool access portion 336b configured to access a tool for operating the adjusting member 336a.The second tool access portion 336b is accessibly disposed relative to one of the chain guide 318 and the link assembly 320 to allow the tool to access the second tool access portion 336b while the chain guide 318 is positioned in the retracted position and while the chain guide 318 is positioned in the extended position.

[0083] The second tool access portion 336b is arranged relative to one of the chain guide 318 and the link assembly 320 to allow the tool to be accessible to the second tool access portion 336b from a side opposite to the bicycle frame F in a state where the base member 316 is / will be mounted to the bicycle frame F.

[0084] As in Fig. As shown in Figure 42, the bicycle derailleur further includes a cover 338 configured to be removably attached to one of the chain guide 318 and the link assembly 320 to cover the cable fixing structure 322. The cover 338 includes a cable holder 338a configured to hold one end of the operating cable 14a. The cover 338 includes a protrusion 338b frictionally engaged with a through-hole 332c of the fastener 332.

[0085] How best in Fig. 31, the base member 316 is designed to be mounted to the bicycle frame F. Essentially, the base member 316 is fixedly connected to the bracket B on a seat tube of the bicycle frame F by a mounting screw S, as shown in Fig. 31. The screw S is threaded into a threaded hole 16b of the base member 316. While the base member 316 is illustrated as a brazed mounting structure, the base member 316 is not limited to this type of mounting structure. For example, the base member 316 of the front derailleur 12 may be replaced with a base member having a clamp band as a bicycle mounting portion if needed and / or desired.

[0086] In the third embodiment, as explained above, the outer casing holder 16a is provided on the base member 316 and constitutes an outer casing receiving part in which one end of the outer casing 14b of the operating cable 14a is held. The outer casing holder 16a has a stepped through-hole that receives an end portion of the outer casing 14b through an inlet end of the through-hole such that the operating cable 14a exits through an outlet end of the through-hole. In the illustrated embodiment, the outer casing holder 16a and the base member 316 are formed as a single-piece member. However, it will be apparent from this disclosure that the outer casing holder 316a may be a separate member from the base member 316 and may be attached to the bicycle frame F.

[0087] Referring to the Fig. 32 to 40, the connecting assembly 320 will now be explained in further detail. The connecting assembly 320 pivotally connects the chain guide 318 to the base member 316. In addition to the input connector 324, the connecting assembly 320 further includes a first connector 340 and a second connector 342 pivotally mounted to the base member 316 for transmitting a pulling force of the actuating cable 14a to one of the first and second connectors 340 and 342. The connecting assembly 320 includes a first connector 340 pivotally coupled to the base member 316. The cable fixing structure 322 is mounted to the input connector 334.

[0088] The connecting assembly 320 further includes at least one terminal connector 344 operatively connecting the input connector 324 to one of the first and second connectors 340 and 342. In the first illustrated embodiment, the connecting assembly 320 further includes an extension connector 346 for operatively connecting the terminal connector 344 to the first connector 340. In the first illustrated embodiment, the terminal connector 344 connects the input connector 324 to the extension connector 346. Thus, actuation of the actuation cable 14a causes the chain guide 318 to move relative to the base member 316 via the connecting assembly 320.

[0089] How best to Fig. 36 to 40, the connections of the link assembly 320 between the base link 316 and the chain guide 318 will now be explained. The first connector 340 has a first end portion pivotally mounted to the base link 316 via a second pivot axis X2, and a second end portion pivotally mounted to the chain guide 318 by a third pivot axis X3. The second connector 342 has a first end portion pivotally mounted to the base link 316 via a fourth pivot axis X4, and a second end portion pivotally mounted to the chain guide 318 by a fifth pivot axis X5. Thus, the base link 316, the chain guide 318, and the first and second connectors 340 and 342 define a four-link connection or four-link assembly.The connecting connector 344 has a first end portion pivotally coupled to the input connector 324 by a sixth pivot axis X6, and a second end portion pivotally coupled to the extension connector 346 at a seventh pivot axis X7. The extension connector 346 is pivotally mounted on the second pivot axis X2 and transmits the movement of the input connector 324 to the first connector 340 via the connecting connector 344. During actuation of the actuation cable 14a, the extension connector 346 pivots about the second pivot axis X2 and transmits the actuation force to the first connector 340 of the connecting assembly 320. Simultaneously, the second connector 342 pivots about the fourth and fifth pivot axes X4 and X5.

[0090] As explained above, the cable fastening member 326 is configured to rotate in the cable pulling direction R1 and in the release direction R2 with respect to the fixing axis A2 of the fastener 332 relative to the connecting assembly to which the cable fastening member 326 is mounted. The cable fastening member 326 is configured to be movable in the cable pulling direction R1 in a state where the operating cable 14a is fixed to the cable fastening member 326. In other words, the cable fastening member 326 is movable with respect to the input connector 324 with respect to the fixing axis A2 while the operating cable 14a is fixed to the cable fastening member 326. As explained below, this arrangement allows the tension in the operating cable 14a to be adjusted while the operating cable 14a is fixed to the cable fastening member 326.

[0091] The cable fixing structure 322 is free of an outer casing holder to which one end of the outer casing 14b of the operating cable 14a is held. In the third embodiment, as explained later, the base member 316 is provided with an outer casing holder 316a. The cable fixing member 326 is movable with respect to one of the chain guide 318 and the connecting assembly 320 to which the cable fixing member 326 is mounted, in a state in which the operating cable 14a is fixed to the cable fixing member 326. Thus, generally, the bicycle cable fixing structure 322 is configured to fix the operating cable 14a, which moves a bicycle component (e.g., the front derailleur 312) in response to an operation of the operating cable 14a.

[0092] Referring to Fig. 31, the chain guide 318 is configured to be movable between the retracted and extended positions with respect to the base member 316. More specifically, the chain guide 318 is pivotally supported with respect to the base member 316 to move the chain C in a transverse direction with respect to a central longitudinal plane of the bicycle frame F. In the illustrated embodiment, the extended position is farther from the bicycle frame F than the retracted position in the transverse direction. Here, the chain guide 318 is configured to switch the chain C between the chainrings S1 and S2 as the chain guide 318 moves between the retracted and extended positions, depending on whether the actuating member 14a has been pulled or released. Consequently, in the third embodiment, when the chain guide 318 is in the retracted position (best in the Fig. 37 and Fig. 39), the front derailleur 312 switches to the extended position (preferably in the Fig. 38 and Fig. 40) in response to the actuating cable 14a being pulled. On the other hand, in the third embodiment, when the chain guides 318 are in the extended position, the derailleur 312 shifts to the retracted position in response to the actuating cable 14a being released.

[0093] How best to Fig. 41 to 47, the cable fixing structure 322 is mounted to the input connector 324. Consequently, the cable fixing structure 322 is configured to fix the actuating cable 14a, which moves the connecting assembly 320 in response to actuation of the actuating cable 14a. More specifically, in the first illustrated embodiment, when the chain guide 318 is in the retracted position, the chain guide 318 switches from the retracted position ( Fig. 32 to 37 and 39) into the extended position ( Fig. 38 and Fig. 40) in response to the actuating cable 14a being pulled.

[0094] As explained below, the input connector 324 is biased such that the chain guide 318 is directed toward the retracted position ( Fig. 32 to 37 and 39). As a result of the actuating cable 14a being released, the cable fixing structure 322 and the input connector 324 rotate together with respect to the pivot axis A1 in a first actuating direction D1. When the actuating cable 14a is pulled, the cable fixing structure 322 and the input connector 324 rotate together with respect to the pivot axis A1 in a second actuating direction D2. Consequently, when the chain guide 318 is in the extended position, the chain guide 318 switches from the extended position ( Fig. 38 and Fig. 40) into the retracted position ( Fig. 32 to 37 and 39) in response that the actuating cable 14a has been released.

[0095] How best to Fig. As shown in Figures 32 to 34, the chain guide 318 includes a first guide plate 318a and a second guide plate 318b, which is located farther from the seat tube when the bracket B is mounted to the seat tube. The first and second guide plates 318a and 318b form a chain receiving slot therebetween. The first and second guide plates 318a and 318b are provided with non-metallic pads P1 and P2 to assist in shifting the chain C between the sprockets S1 and S2. The non-metallic pad P2 is attached to an inner surface of the second guide plate 318b by adhesives or fasteners. The non-metallic pad P2 is configured to protrude from the inner surface of the second guide plate 318b to contact a bicycle chain C to prevent the chain C from falling off the large chainring S2 when the chain cover 318 moves from the retracted position to the extended position.The first guide plate 318 is connected to the second guide plate 318b by a first or upper connecting portion 318c and a second or lower connecting portion 318d. In the illustrated embodiment, the first guide plate 318a, the second guide plate 318b, the first connecting portion 318c, and the second connecting portion 318d are formed as a one-piece unitary member by bending a single piece of metal sheet. The first connecting portion 318c includes a pair of mounting flanges 318e. The mounting flanges 318e are pivotally connected to the second connector 342 by the fifth pivot axis X5.

[0096] In the third embodiment, as best described in Fig. 34 and Fig. 36, the chain guide 318 is biased in the retracted position relative to the base member 316 by a biasing member 348. The biasing member 348 includes a coiled portion 348a disposed about a pivot axis of the link assembly 320. The biasing member 348 has a first free end portion 32b contacting the link assembly 320 and a second free end portion 32c contacting the second guide plate 318b. Thus, the biasing member 348 is operatively disposed between the base member 316 and the chain guide 318. In the illustrated embodiment, the biasing member 348 biases the chain guide 318 toward the retracted position such that the chain guide 318 is positioned over the small chainring S1. Consequently, in the third embodiment, the retracted position represents an initial state or a rest position of the chain guide 318.In particular, the biasing member 348 maintains the chain guide 318 in the retracted position when the actuating cable 14a is released or removed from the bicycle front derailleur 312.

[0097] In the third embodiment, the biasing member 348 and the link assembly 320 are arranged with respect to the base member 316 and the chain guide 318 to form a downswing derailleur, as explained above. A downswing derailleur refers to a derailleur whose chain guide is mounted on the lower pivot axes of the link assembly that support it. The derailleur 312 of the illustrated embodiment is also a bottom-pull derailleur because the operating cable 14a is pulled in a downward direction to move the chain guide 318 against the biasing force of the biasing member 348 while the bicycle frame F is in a level, upright position.

[0098] Mainly referring to the Fig. 42 and Fig. 43, the input connector 324 will now be explained in further detail. The input connector 324 essentially includes a pivot portion 350, a terminal connector coupling portion 352, and a cable attachment portion 354. The pivot portion 350 is configured to pivotally attach the input connector 324 to the base member 316. In particular, the pivot portion 350 has a pivot axis receiving bore for receiving the first pivot axis X1. The terminal connector coupling portion 352 is configured to pivotally attach the terminal connector 324 to the input connector 324.

[0099] The cable fastening part 354 includes a bore 354a and a curved recess 354b for rotatably supporting the cable fastening member 326 to the input connector 324. Specifically, the mounting part 328 is received in the bore 354a, while the limiting structure 334 is received in the curved recess 354b. The cable fastening member 326 is installed on the input connector 324 by first inserting the mounting part 328 into the bore 354a and then rotating the limiting structure 334 into the curved recess 354b. In this manner, the cable fastening member 326 cannot be removed from the input connector 324 by pulling the cable fastening member 326 along the fixing axis A2. Accordingly, a twist-mounting arrangement similar to a bayonet mount is configured to secure the cable fastening member 326 to the input connector 324.

[0100] The first connector 340 includes a first adjustment member M1 and a second adjustment member M2 attached thereto. The first and second adjustment members M1 and M2 are configured to adjust an amount of movement of the chain guide 318. The first and second adjustment members M1 and M2 will be explained in more detail later.

[0101] In the illustrated embodiment, the second connector 342 has an upper protruding portion 342a that extends upward to overlap with a portion of the cable fixing structure 322. The upper protruding portion 342a is disposed adjacent to the input connector 324. The upper protruding portion 342a serves as a guard member to protect the space between the input connector 324 and the second connector 342 from debris. During a gear shift operation, to move the chain C from the first sprocket S1 to the second sprocket S2, the input connector 324 receives a pulling force from the operating cable 14a, which is transmitted to the first connector 340 via the extension connector 346 and the terminal connector 366.In this way, the amount of force transmitted from the input connector 324 to the second connector 342 is reduced compared to a conventional front derailleur in which the operating cable is attached to the outer connector (second connector). Because the operating cable 14a is not directly attached to the second connector 342 of the derailleur 312, the second connector 342 experiences less stretch during a gear shift operation compared to conventional front derailleurs. Consequently, the second connector 342 in the illustrated embodiment can be constructed from plastic instead of metal. This construction of the second connector 342 allows the derailleur 312 to be made lighter.

[0102] As explained above, the first and second adjustment members M1 and M2 are arranged on the first connector 340 of the link assembly 320. In the illustrated embodiment, the first and second adjustment members M1 and M2 are adjustment screws configured to allow a rider to adjust the range of movement of the chain guide 318 during gear shifting as well as the angular arrangement of the link assembly 320. In the illustrated embodiment, the first adjustment member M1 is configured to limit movement of the chain guide 318 in one of the extended position and the retracted position of the chain guide 318. The second adjustment member M2 is configured to adjust the other of the retracted position and the extended position of the chain guide 318.In other words, the first and second adjustment members M1 and M2 are configured to adjust the range of motion of the chain guide stroke between the retracted position and the extended position during a gear shift operation. Additionally, the adjustment of the first and second adjustment members M1 and M2 allows a rider to effectively configure the derailleur 312 such that the bicycle chain C optimally runs between the chain-receiving slot of the chain guide 318. In the illustrated embodiment, the first and second adjustment members M1 and M2 are threaded screws.

[0103] More specifically, the first adjustment member M1 is threaded into a first threaded bore of the first connector 340, while the second adjustment member M2 is threaded into a second threaded bore of the first connector 340. A rider can adjust the first adjustment member M1 by means such as a tool (not shown) to screw the first adjustment member M1 into and out of the first connector 340. Also, as with the first adjustment member M1, a rider can adjust the second adjustment member M2 by means such as a tool (not shown) to screw the second adjustment member M2 into and out of the first connector 340. In the illustrated embodiment, the first adjustment member M1 is configured to contact the base member 316 to define the retracted position of the chain guide 318.That is, the position of the first adjusting member M1 determines the starting position of a bicycle gear shifting operation in which the derailleur 312 is moved from the retracted state (. Fig. 39) into the extended position ( Fig. 40) shifts. In other words, the position of the first adjustment member M1 determines the rest position of the chain guide 318. It will be apparent to one skilled in the art from this disclosure that the first adjustment member M1 may also be configured to contact the chain guide 318 to limit the retracted or extended position of the chain guide 318. The first adjustment member M1 may be a conventionally known tool such as a stop screw, as this sets one of the starting or end stops of the chain guide 318 during a gear shift operation. In the illustrated embodiment, the first adjustment member M1 is a low adjustment stop screw, as this sets the retracted or rest position of the chain guide 318. In this manner, the first adjustment member M1 also adjusts the range of movement of the chain guide 318 during a gear shift operation.

[0104] The degree to which the second adjustment member M2 extends from the first connector 314 determines the angular orientation of the extension connector 346 with respect to the first connector 340. Consequently, by adjusting the second adjustment member M2, a rider can adjust the angular orientation of the extension connector 346 with respect to the first connector 340. More specifically, the second adjustment member M2 is configured to adjust the relative angular orientation between the first connector 340 and the extension connector 346 with respect to the second pivot axis X2. In this manner, the second adjustment member M2 contacts the extension connector 346 when the chain guide 380 is either in the retracted position ( Fig. 37) or the extended position ( Fig.38). Adjusting the angular alignment of the extension connector 346 will, in turn, adjust the angular alignment of the terminal connector 366 and the input connector 324. In this way, the rider can finely adjust the derailleur 312 such that sufficient shifting force can be achieved to shift the chain C from the small chainring S1 to the chainring S2, and the sprockets are optimally aligned between the chain receiving slot of the chain guide 318.

[0105] The base member 316 includes a support member M3 that is screwed into a threaded hole in the base member 316 and has a free end that abuts or abuts against the bracket B or the bicycle frame F. By screwing in or unscrewing the adjustment member M3, the angle of the chain guide 318 with respect to the longitudinal, vertical center plane can be adjusted. The support member M3 can support the base member 316 such that the base member 316 does not move relative to the bicycle frame F during a shifting operation of the chain guide from the retracted position to the extended position.

[0106] For the purpose of understanding the scope of the present invention, the terms "comprising" and its derivatives, as used herein, are to be understood as open-ended terms that specify the presence of the recited features, elements, components, groups, integers, and / or steps, but do not exclude the presence of other, unstated features, elements, components, groups, integers, and / or steps. The above also applies to words with similar meanings, such as the terms "comprise," "include," and their derivatives. Furthermore, the terms "part," "section," "portion," "member," or "element," when used in the singular, may have the plural meaning of a single part or a plurality of parts, unless otherwise stated.

[0107] As used herein, the following directional terms such as "frame-facing side," "non-frame-facing side," "upward," "downward," "front," "rearward," "over," "under," "upward," "downward," "high," "downward," "lateral," "vertical," "horizontal," "perpendicular," and "across," as well as any similar directional terms, refer to such directions of a bicycle in an upright riding position and equipped with the chain tensioning device. Accordingly, these directional terms, as used herein to describe the chain tensioning device, should be interpreted relative to a bicycle in an upright riding position on a horizontal surface equipped with the bicycle front derailleur.The terms “left” and “right” are used to indicate “right” when referring to the right side as viewed from the rear of the bicycle and “left” when referring to the left side as viewed from the rear of the bicycle.

[0108] It should also be understood that although the terms "first" and "second" are used herein to describe different components, these components should not be limited by these terms. These terms are used merely to distinguish one component from another. Thus, for example, a first component as explained above may be referred to as a second component and vice versa without departing from the teachings of the present invention. The term "attached" or "attaching" as used herein includes configurations in which one element is directly attached to another element, by means of a fastening element directly to the other element; configurations in which the element is indirectly attached to the other element via the intermediate member; and configurations in which one element is integrally formed with another element, i.e.One element is essentially part of the other element. This concept also applies to words with similar meanings, such as "connected," "joined," "coupled," "mounted," "glued," "fixed," and their derivatives. Finally, the extent terms such as "substantially," "by," and "approximately," as used herein, mean a reasonable amount of variation from the modified term so that the final result is not significantly altered.

[0109] While only selected embodiments have been chosen to illustrate the present invention, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the scope of the invention as defined in the appended claims. For example, unless otherwise noted, the size, shape, location, or orientation of the various components may be changed as desired and / or required, so long as these changes do not substantially affect the intended function. Unless otherwise explained, components shown directly connected to one another may have intermediate structures between them, so long as these changes do not substantially affect the intended function. The function of one element may be performed by two and vice versa, unless otherwise explained.The structures and functions of one embodiment may be adapted for another. It is not necessary that all advantages be present in one embodiment. Any feature that differs from the prior art, alone or in combination with other features, should be considered a separate description of applicant's other inventions, including the structures and / or functional concepts embodied by such invention(s). Furthermore, the foregoing descriptions of embodiments according to the present invention are presented for illustration only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.

Claims

[1] Bicycle derailleur (12; 312), comprising: a base member (16; 316) configured to be mounted on a bicycle frame (F); a chain guide (18; 318) configured to be movable between a retracted position and an extended position with respect to the base member (16; 316); a connecting arrangement (20; 320) which operatively couples the chain guide (18; 318) to the base link (16; 316); and a cable fixing structure (22; 322) configured to fix an actuating cable (14a) that moves the connecting assembly (20; 320) in response to an actuation of the actuating cable (14a), wherein the cable fixing structure (22; 322) is mounted to one of the chain guide (18; 318) and the connecting assembly (20; 320), and wherein the cable fixing structure (22; 322) includes: a cable fixing member (26; 326) to which the operating cable (14a) is / is fixed, wherein the cable fixing member (26; 326) is movable with respect to one of the chain guide (18; 318) and the connecting assembly (20; 320) in a state in which the operating cable (14a) is / is fixed to the cable fixing member (26; 326) a mooring device (32; 332) configured to fix the actuating cable (14a) to the cable fixing member (26; 326), wherein the mooring device (32; 332) extends through the cable fixing member (26; 326) in a direction of a fixing axis (A2), wherein the mooring device (32; 332) is rotatably mounted in a fixing direction about the fixing axis (A2) to fix the actuating cable (14a) to the cable fixing member (26; 326), and a cable tension adjustment structure (36; 336) configured to move the cable fastening member (26; 326) relative to one of the chain guide (18; 318) and the connecting assembly (20; 320), wherein the cable tension adjustment structure (36; 336) includes an adjustment member (36a; 336a), the adjustment member (36a; 336a) being different from the fastener (32; 332) for adjusting a position of the cable fastening member (26; 326) with respect to one of the chain guide (18; 318) and the connecting assembly (20; 320) about the fixing axis (A2). [2] Bicycle derailleur (12; 312) according to claim 1, wherein the cable fixing structure (22; 322) is mounted to the connecting assembly (20; 320). [3] Bicycle derailleur (12; 312) according to claim 1 or 2, wherein the adjusting member (36a; 336a) is a screw which threadably engages a bore (24a; 324a) of one of the chain guide (18; 318) and the connecting assembly (20; 320). [4] Bicycle derailleur (12; 312) according to claim 3, wherein the cable fixing member (26; 326) includes a cable clamping portion (26a; 326a) to which the operating cable (14a) is clamped, wherein the cable fixing member (26; 326) is configured to selectively rotate in a cable pulling direction (R1) and a cable releasing direction (R2) by the operation of the adjusting member (36a; 336a). [5] Bicycle derailleur (12; 312) according to claim 3 or 4, wherein the adjusting member (36a; 336a) is configured to abut the cable fixing member (26; 326) to limit movement of the cable fixing member (26; 326) in a cable releasing direction (R2). [6] Bicycle derailleur (12; 312) according to one of claims 1 to 5, wherein the cable fixing member (26; 326) is configured to be movable in a cable pulling direction (R1) in a state where the operating cable (14a) is fixed to the cable fixing member (26; 326). [7] Bicycle derailleur (12; 312) according to one of claims 1 to 6, wherein the cable fastening member (26; 326) includes a limiting structure (34; 334) configured to selectively limit movement of the cable fastening member (26; 326) in a cable pulling direction (R1). [8] Bicycle derailleur (12) according to claim 7, wherein the limiting structure (34) includes a first tool access portion (34a) configured to provide tool access to limit movement of the cable fastening member (26) in the cable pulling direction (R1). [9] Bicycle derailleur (12) according to claim 8, wherein the cable fixing structure (22) includes the cable tension adjustment structure (36) configured to move the cable fastening member (26) relative to one of the chain guide (18) and the connecting assembly (20), wherein the cable tension adjustment structure (36) includes the adjustment member (36a) to adjust a position of the cable fastening member (26) with respect to one of the chain guide (18) and the connecting assembly (20), and wherein the adjustment member (36a) includes a second tool access portion (36b) configured to provide access to a tool (T) to operate the adjustment member (36a), wherein the first and second tool access portions (34a, 36b) have profiles configured such that the tool (T) can be inserted over both the first and second tool access portions (34a, 36b), can access. [10] Bicycle derailleur (12) according to claim 8, wherein the cable fixing structure (22) includes the cable tension adjustment structure (36) configured to move the cable fastening member (26) relative to one of the chain guide (18) and the connecting assembly (20), wherein the cable tension adjustment structure (36) includes the adjustment member (36a) to adjust a position of the cable fastening member (26) with respect to one of the chain guide (18) and the connecting assembly (20), and wherein the adjustment member (36a) includes a second tool access portion (36b) configured to allow access to a tool (T) to operate the adjustment member (36a), wherein the second tool access portion (36b) is arranged relative to one of the chain guide (18) and the connecting assembly (20) to allow the tool (T) access to the second tool access section (36b) to inhibit,while the chain guide (18) is positioned in one of the retracted position and the extended position., [11] Bicycle derailleur (12; 312) according to one of claims 1 to 10, wherein the cable fastening member (26; 326) is / is mounted rotatably about the fixing axis (A2). [12] Bicycle derailleur (12; 312) according to claim 11, insofar as not dependent on claims 8 to 10, wherein the cable fixing structure (22; 322) includes the cable tension adjusting structure (36; 336) which is configured to move the cable fastening member (26; 326) relative to one of the chain guide (18; 318) and the connecting assembly (20; 320), wherein the cable tension adjusting structure (36; 336) includes the adjusting member (36a; 336a) to adjust a position of the cable fastening member (26; 326) with respect to one of the chain guide (18; 318) and the connecting assembly (20; 320), and wherein the adjusting member (36a; 336a) is configured to be coupled to the cable fastening member (26; 326) to define an angular position of the cable fastening member (26; 326) with respect to the fixing axis (A2). [13] Bicycle derailleur (312) according to claim 11 or 12, insofar as not dependent on claims 8 to 10, wherein the adjusting member (336a) is arranged in a downstream side of a second stopper (334b) with respect to the fixing direction. [14] The bicycle derailleur (312) according to claim 13, wherein the adjustment member (336a) includes a second tool access portion (336b) configured to make a tool (T) accessible for operating the adjustment member (336a), the second tool access portion (336b) being accessibly disposed relative to one of the chain guide (318) and the link assembly (320) to allow the tool (T) to access the second tool access portion (336b) either while the chain guide (318) is in the retracted position or while the chain guide (318) is in the extended position or from a side opposite to the bicycle frame (F) in a state in which the base member (316) is mounted to the bicycle frame (F). [15] Bicycle derailleur (312) according to one of claims 1 to 7 and 11 to 14, wherein the connecting assembly (320) includes a first connector (340) pivotally coupled to the base member (316) with respect to a mounting axis (A1), the fixing axis (A2) extending perpendicular to a second reference plane (PL2) parallel to the mounting axis (A1). [16] Bicycle derailleur (12; 312) according to one of claims 1 to 15, wherein the cable fixing structure (22; 322) is free of an outer casing holder (16a) in which one end of an outer casing (14b) of the operating cable (14a) is held. [17] Bicycle derailleur (12; 312) according to one of claims 1 to 16, wherein the connecting assembly (20; 320) includes first and second connectors (40; 42; 340; 342) which pivotally couple the chain guide (18; 318) to the base member (16; 316), wherein an input connector (24; 324) is pivotally mounted to the base member (16; 316) for transmitting a pulling force of the operating cable (14a) to one of the first and second connectors (40; 42; 340; 342), and wherein the cable fixing structure (22; 322) is mounted to the input connector (24; 324), in particular the connecting assembly (20; 320) includes at least one terminal connector (44; 344), which operatively connects the input connector (24; 324) to one of the first and second connectors (40; 42; 340; 342), in particular the cable fastening member (26; 326) is rotatably mounted to the input connector (24; 324). [18] The bicycle derailleur (12; 312) according to claim 17, wherein the cable fixing structure (22; 322) includes the cable tension adjusting structure (36; 336) configured to move the cable fastening member (26; 326) relative to the input connector (24; 324), wherein the cable tension adjusting structure (36; 336) includes the adjusting member (36a; 336a) for adjusting a position of the cable fastening member (26; 326) with respect to the input connector (24; 324), and wherein the adjusting member (36a; 336a) is a screw that is screwed into a bore (24a; 324a) of the input connector (24; 324). [19] Bicycle derailleur (312) according to one of claims 1 to 18, further comprising a cover (338) configured to be removably attached to one of the chain guide (318) and the connecting assembly (320) to cover the cable fixing structure (322), in particular the cover (338) includes a cable holder (338a) configured to hold one end of the operating cable (14a). [20] A cable fixing structure (22; 322) configured to fix an operating cable (14a) that moves a bicycle derailleur (12, 312) in response to an operation of the operating cable (14a), the cable fixing structure (22; 322) comprising: a cable fastening member (26; 326) to which the actuating cable (14a) is / is fixed by a fastener (32; 332) having a fixing axis (A2); wherein the mooring device (32; 332) is designed to fix the actuating cable (14a) to the cable fixing member (26; 326), the mooring device (32; 332) extends through the cable fixing member (26; 326) in a direction of the fixing axis (A2), and the mooring device (32; 332) is rotatably mounted in a fixing direction about the fixing axis (A2) to fix the actuating cable (14a) to the cable fixing member (26; 326), and a cable tension adjustment structure (36; 336) which is designed to move the cable fastening member (26; 326) relative to one of a chain guide (18; 318) and a connecting arrangement (20; 320) of the bicycle derailleur (12, 312), in particular in a direction parallel to a first reference plane (PL) which, in a state in which the operating cable (14a) is fixed to the cable fastening member (26; 326), is perpendicular to the fixing axis (A2), wherein the cable tension adjustment structure (36; 336) includes an adjustment member (36a; 336a), wherein the adjustment member (36a; 336a) is different from the fastener (32; 332) in order to adjust a position of the cable fastening member (26; 326) with respect to one of the chain guide (18; 318) and the Connecting arrangement (20; 320) for adjusting the fixing axis (A2). [21] Cable fixing structure (22; 322) according to claim 20, wherein the cable fixing member (26; 326) is / is mounted rotatably about the fixing axis (A2) of the mooring device (32; 332). [22] A cable fixing structure (22) according to claim 20 or 21, wherein the cable fixing member (26) is configured to be slidable in a direction parallel to the first reference plane (PL). [23] The cable fixing structure (22) according to any one of claims 20 to 22, wherein a base member (16) of the bicycle derailleur (12) includes a first indicator (38) and the link assembly (20) includes a second indicator (39), the first and second indicators (38, 39) being configured to indicate a first initial position of the link assembly (20) with respect to the base member (16).

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