CABLE ADJUSTER
20190345997 ยท 2019-11-14
Inventors
Cpc classification
B62L1/16
PERFORMING OPERATIONS; TRANSPORTING
F16D65/44
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16D2125/62
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16D41/18
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B62L3/00
PERFORMING OPERATIONS; TRANSPORTING
B62L1/005
PERFORMING OPERATIONS; TRANSPORTING
F16D41/32
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16D65/28
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16C1/223
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16C2326/20
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F16D65/44
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B62L1/16
PERFORMING OPERATIONS; TRANSPORTING
B62L3/00
PERFORMING OPERATIONS; TRANSPORTING
F16C1/22
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16D41/18
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A cable adjuster is provided for a small vehicle including a bicycle. The cable adjuster includes a base portion and a control structure. The control structure includes a first member, a second member and a clutch mechanism. The first member is configured to be rotatably mounted to the base portion about a first axis. The second member is attached to the first member to rotate relative to the first member. The clutch mechanism is configured to transmit rotational force applied to the second member to the first member. The clutch mechanism is also configured to prevent from transmitting rotational force applied on the first member to the second member.
Claims
1. A cable adjuster for a small vehicle, the cable adjuster comprising: a base portion; and a control structure including: a first member configured to be rotatably mounted to the base portion about a first axis; a second member attached to the first member to rotate relative to the first member; and a clutch mechanism configured to transmit rotational force applied to the second member to the first member and to prevent from transmitting rotational force applied on the first member to the second member.
2. The cable adjuster according to claim 1, wherein the clutch mechanism includes a ratchet configured to be mounted to one of the base portion and the first member, and a pawl configured to be movably mounted to the other of the base portion and the first member between a ratchet engaged position and a ratchet disengaged position, the pawl being operatively coupled to the second member to move from the ratchet engaged position to the ratchet disengaged position in response to a first rotational movement of the second member relative to the first member in a first rotational direction.
3. The cable adjuster according to claim 2, wherein the clutch mechanism further includes a biasing element that biases the pawl towards the ratchet engaged position.
4. The cable adjuster according to claim 2, wherein the ratchet is configured to be mounted to the base portion, and the pawl is configured to be movably mounted to the first member.
5. The cable adjuster according to claim 4, wherein the ratchet includes a ring portion having ratchet teeth circumferentially arranged along a radially inner side of the ring portion, and a key portion projecting from the ring portion to position the ratchet relative to the base portion.
6. The cable adjuster according to claim 4, wherein the one of the second member and the pawl includes a recess, and the other of the second member and the pawl includes a projection that is at least partially disposed in the recess.
7. The cable adjuster according to claim 6, wherein the first member includes the recess and the pawl includes the projection.
8. The cable adjuster according to claim 6, wherein the recess is larger than the projection to allow a movement of the pawl relative to the ratchet in response to a second rotational movement of the second member relative to the first member in a second rotational direction that is opposite to the first rotational direction.
9. The cable adjuster according to claim 2, wherein the ratchet includes at least three ratchet teeth that are selectively engaged with the pawl to establish at least three cable positions.
10. The cable adjuster according to claim 1, wherein the second member is configured to rotate within a predetermined rotational movement range relative to the first member and to rotate with the first member after rotational movement past the predetermined rotational movement range.
11. The cable adjuster according to claim 10, wherein one of the first and second members includes at least one slot, and the other of the first and second members includes at least one protrusion, the at least one protrusion is at least partially disposed in the at least one slot to limit relative rotational movement of the second member relative to the first member to the predetermined rotational movement range.
12. The cable adjuster according to claim 11, wherein the at least one slot includes a pair of slots and the at least one protrusion includes a pair of protrusions.
13. The cable adjuster according to claim 1, wherein the second member includes a user operating portion.
14. The cable adjuster according to claim 1, wherein the second member rotates relative to the first member about a second axis that is parallel to and offset from the first axis.
15. The cable adjuster according to claim 1, further comprising a cable attachment rotatably supported on the first member.
16. The cable adjuster according to claim 15, wherein the cable attachment rotates relative to the first member about a second axis that is parallel to and offset from the first axis.
17. The cable adjuster according to claim 16, wherein the first member includes a cylindrically shaped outer surface having a center of curvature coinciding with the first axis, and an attachment bore defining the second axis, the cable attachment including a rod portion rotatably disposed in the attachment bore.
18. The cable adjuster according to claim 17, further comprising a threaded fastener having a head portion contacting the first member and a threaded shaft portion threaded into a threaded bore of the rod portion of the cable attachment.
19. The cable adjuster according to claim 15, wherein the cable attachment further includes a first inner wire contact portion that is stationary with respect to the rod portion, a second inner wire contact portion that is movable with respect to the first inner wire contact portion, and a fixing member movably coupling the second inner wire contact portion to the first inner wire contact portion.
20. A rim brake including the cable adjuster according to claim 1, the rim brake further comprising a first brake arm including a first brake shoe attachment structure, and an outer casing receiving structure, and a second brake arm including a second brake shoe attachment structure and the base portion.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0046] Referring now to the attached drawings which form a part of this original disclosure:
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DETAILED DESCRIPTION OF EMBODIMENTS
[0064] Selected embodiments will now be explained with reference to the drawings. It will be apparent to those skilled in the small vehicle field (particularly the bicycle field) from this disclosure that the following descriptions of the embodiments are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.
[0065] Referring initially to
[0066] Basically, the rim brake 12 is operated by an operating cable 14 that has an outer case 14a covering an inner wire 14b. The cable adjuster 10 is attached to the inner wire 14b of the operating cable 14. In other words, in the illustrated embodiment, the operating cable 14 is a Bowden type cable in which the inner wire 14b is slidably received within the outer case 14a. A bicycle operating device (not shown) operates the rim brake 12 by selectively pulling and releasing the inner wire 12b. In this way, the rim brake 12 selectively applies a braking force to a bicycle rim R of a bicycle wheel W. As explained below, the cable adjuster 10 is constructed to selectively establish a plurality of positions of the inner wire 14b with respect to the outer case 14a. In this way, a user can adjust a state of the cable operated component (for example, a rim brake) using the cable adjuster 10.
[0067] Here, the rim brake 12 is directly mounted to a frame body F (for example, a front fork) of the small vehicle V (for example, the bicycle) by a first fixing bolt 16 and a second fixing bolt 18. More specifically, the rim brake 12 further comprises a first brake arm 20 and a second brake arm 22. The first brake arm 20 is pivotally mounted to the frame body F by the first fixing bolt 16, while the second brake arm 22 is pivotally mounted to the frame body F by the second fixing bolt 18. The first fixing bolt 16 defines a first pivot axis X1, while the second fixing bolt 18 defines a second pivot axis X2. The first and second pivot axes X1 and X2 are parallel and disposed on opposite sides of the bicycle wheel W. In the illustrated embodiment, the rim brake 12 is a symmetrical dual-pivot rim (caliper) brake, which is a direct mount brake caliper. However, the cable adjuster 10 can be used with other types of rim (caliper) brakes, such as a single pivot rim (caliper) brake and a dual pivot rim (caliper) brake that is an indirect mount. Further, the cable adjuster 10 can be used with any other type of bicycle component, such as a mechanical disc brake caliper, a speed changing device including a derailleur and an internal hub gear, and so on. The first brake arm 20 includes a first brake shoe attachment structure 20a, and an outer casing receiving structure 20b. The second brake arm 22 includes a second brake shoe attachment structure 22a and a base portion 22b. The rim brake 12 further includes a pair of brake shoes 24 that each includes a friction member 26. The brake shoes 24 are adjustably attached to the first and second brake shoe attachment structures 20a and 22a by a pair of attachment bolts 28. In particular, each of the first and second brake shoe attachment structures 20a and 22a has a slot, as shown in
[0068] Since rim brakes are well known, the conventional parts of the rim brake 12 will not be discussed in detail herein for the sake of brevity. Basically, a bicycle operating device (not shown) operates the rim brake 12 by selectively pulling and releasing the inner wire 14b, which in turn rotates the first and second brake arms 20 and 22 about the first and second pivot axes X1 and X2, respectively. In this way, the friction members 26 of the rim brake 12 contact the bicycle rim R to apply a braking force to the bicycle rim R.
[0069] Referring now to
[0070] Basically, the first member 34 is configured to be rotatably mounted to the base portion 22b about a first axis A1. As explained below, the second member 36 is attached to the first member 34 to rotate relative to the first member 34. More specifically, initially, the second member 36 rotates relative to the first member 34 about a second axis A2 that is parallel to and offset from the first axis A1. The second member 36 is further configured to rotate within a predetermined rotational movement range P, as shown in
[0071] As shown in
[0072] As shown in
[0073] As shown in
[0074] As shown in
[0075] One of the first and second members 34 and 36 includes the at least one slot 36c, and the other of the first and second members 34 and 36 includes the at least one protrusion 34e. As shown in
[0076] The clutch mechanism 38 includes a ratchet 44 and a pawl 46. The ratchet 44 is configured to be mounted to one of the base portion 22b and the first member 34. The pawl 46 is configured to be movably mounted to the other of the base portion 22b and the first member 34 between a ratchet engaged position (
[0077] As shown in
[0078] As shown in
[0079] The one of the second member 36 and the pawl 46 includes a recess 36d, and the other of the second member 36 and the pawl 46 includes a projection 46a that is at least partially disposed in the recess 36d. Here, in the illustrated embodiment, as shown in
[0080] As shown in
[0081] The first inner wire contact portion 40b has a first opening 40b1 aligned with a second opening 40c1 in the second inner wire contact portion 40c. The fixing member 40d, such as a bolt, engages the first and second openings 40b 1 and 40c 1 to securely retain the inner wire 14b. The first opening 40b1 is preferably threaded to securely receive the fixing member 40d therein. The first opening 40b1 extends substantially perpendicularly to the fastener receiving aperture 40al.
[0082] As shown in
[0083] The first member 34 is mounted to the base portion 22b such that the first member 34 is inserted from the opposite side of the opening 22b1 than the ratchet 44. The flanged portion 34b of the first member 34 abuts the base portion 22b to limit an insertion depth of the first member 34.
[0084] The second member 36 is inserted on the opposite side of the opening 22b1 than the first member 34 such that the pair of slots 36c and the recess 36d receive the pair of protrusions 34e and the projection 46a, respectively.
[0085] The rod portion 40a of the cable attachment 40 is inserted through the attachment bore 36e of the second member 36 and through the attachment bore 34c of the first member 34. As shown in
[0086] As shown in
[0087] As shown in
[0088] To enlarge a clearance between the brake shoes 24, the second member 36 is rotated within the predetermined rotational movement range P (
[0089] The second member 36 is rotated in the first rotational direction D1 from a first end position (
[0090] Alternatively, as shown in
[0091] From the second end position shown in
[0092] In understanding the scope of the present invention, the term comprising and its derivatives, as used herein, are intended to be open ended terms that specify the presence of the stated 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 foregoing also applies to words having similar meanings such as the terms, including, having and their derivatives. Also, the terms part, section, portion, member or element when used in the singular can have the dual meaning of a single part or a plurality of parts unless otherwise stated.
[0093] As used herein, the following directional terms frame facing side, non-frame facing side, forward, rearward, front, rear, up, down, above, below, upward, downward, top, bottom, side, vertical, horizontal, perpendicular and transverse as well as any other similar directional terms refer to those directions of a bicycle in an upright, riding position and equipped with the cable adjuster. Accordingly, these directional terms, as utilized to describe the cable adjuster should be interpreted relative to a bicycle in an upright riding position on a horizontal surface and that is equipped with the cable adjuster. The terms left and right are used to indicate the right when referencing from the right side as viewed from the rear of the bicycle, and the left when referencing from the left side as viewed from the rear of the bicycle.
[0094] Also, it will be understood that although the terms first and second may be used herein to describe various components, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Thus, for example, a first component discussed above could be termed a second component and vice versa without departing from the teachings of the present invention. The term attached or attaching, as used herein, encompasses configurations in which an element is directly secured to another element by affixing the element directly to the other element; configurations in which the element is indirectly secured to the other element by affixing the element to the intermediate member(s) which in turn are affixed to the other element; and configurations in which one element is integral with another element, i.e. one element is essentially part of the other element. This definition also applies to words of similar meaning, for example, joined, connected, coupled, mounted, bonded, fixed and their derivatives. Finally, terms of degree such as substantially, about and approximately as used herein mean an amount of deviation of the modified term such that the end result is not significantly changed.
[0095] 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 specifically stated otherwise, the size, shape, location or orientation of the various components can be changed as needed and/or desired so long as the changes do not substantially affect their intended function. Unless specifically stated otherwise, components that are shown directly connected or contacting each other can have intermediate structures disposed between them so long as the changes do not substantially affect their intended function. The functions of one element can be performed by two, and vice versa unless specifically stated otherwise. The structures and functions of one embodiment can be adopted in another embodiment. It is not necessary for all advantages to be present in a particular embodiment at the same time. Every feature which is unique from the prior art, alone or in combination with other features, also should be considered a separate description of further inventions by the applicant, including the structural and/or functional concepts embodied by such feature(s). Thus, the foregoing descriptions of the embodiments according to the present invention are provided for illustration only, and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.