TW202015952A - Clamp band and bicycle component including clamp band - Google Patents

Abstract

The present invention relates to a clamp band 20 for clamping a pipe-like portion 14 of a bicycle 1 that comprises a base member 22, a first clamp member 24A, a second clamp member 24B, and a coupling structure 32. The first clamp member 24A is pivotally mounted on the base member 22 and has a first surface 40A facing the pipe-like portion 14 in a clamping state where the clamp band 20 clamps the pipe-like portion 14. The second clamp member 24B is pivotally mounted on the base member 22 and has a second surface 40B facing the pipe-like portion 14 in the clamping state. The coupling structure 32 couples the first clamp member 24A with the second clamp member 24B for pivoting relative to each other. The first surface 40A has a plurality of first contact portions 42A configured such that a transition between adjacent first contact portions 42A is non-continuous. Further, the second surface 40B has a plurality of second contact portions 42B configured such that a transition between adjacent second contact portions 42B is non-continuous.

Description

Clamp ring and bicycle component containing the clamp ring

The invention relates generally to devices for attaching components to tubular parts, particularly in the technical field of bicycles. Specifically, the focus of the present invention is on a clamp ring and a bicycle component including the clamp ring to clamp a tubular portion of a bicycle, for example, to attach a front derailleur to a bicycle seat tube.

Cycling is becoming an increasingly popular form of entertainment and transportation. In addition, cycling has become a very popular competitive sport for both amateurs and professionals. Whether the bicycle is used for recreation, transportation, or competition, the bicycle industry is constantly improving the various components of the bicycle. Therefore, modern developments have also focused on the attachment of different components to bicycle frames.

In order to provide a bicycle that operates reliably, the bicycle assembly must be accurately arranged on each frame or frame portion and held in its predetermined position. This applies especially to any part of the bicycle. At present, the solutions known from the prior art are, in general terms, a clamp ring comprising two jaw members that can be moved relative to each other via a pivot. To surround the seat tube of the bicycle, both jaw members usually have a continuous semi-circular structure.

Basically, the shape of the jaw member is implemented to accurately fit a specific size or diameter given by each frame part, for example, the size or diameter of the seat tube clamped by the clamp ring. Therefore, a specific clamping ring is usually only suitable for clamping around a certain tubular frame portion. When the same clamp ring is installed on different tubular frame parts, the contact surface between the clamp ring and each frame part is mostly reduced to two local contact points, thus resulting in inaccurate positioning. According to the known technique, a clamp ring used for, for example, a seat tube is usually intended to be fitted to a relatively large diameter. If such a clamp ring is to be attached to a seat tube having a different size, in order to achieve optimal installation of the clamp ring, selective internal fittings must be used to compensate for the difference in diameter.

However, the known solutions are quite large in scale, because these fittings have to be produced individually for different diameters of all possible tubular frame parts. In addition, such a fitting constitutes an additional separate component of the clamp ring, resulting in a more complicated structure, and thus the clamp ring becomes more expensive. Therefore, an object of the present invention is to provide an improved clamp ring for clamping a tubular portion of a bicycle that can be widely used.

Another object of the present invention is to provide an improved clamp ring for clamping the tubular portion of a bicycle, which has a simplified structure resulting in reduced manufacturing costs and easier handling.

According to a first aspect of the present invention, a clamp ring for clamping a tubular portion of a bicycle includes a base member, a first clamping member, a second clamping member, and a coupling structure. The first jaw member is pivotally mounted on the base member and has a first surface facing the tubular portion in the jaw state of the jaw clamping jaw of the tubular portion. The second jaw member is pivotally mounted on the base member and has a second surface facing the tubular portion in the jaw state. The coupling structure couples the first jaw member and the second jaw member to pivot relative to each other. The first surface has a plurality of first contact portions. The plurality of first contact portions are constructed so that the transition between adjacent first contact portions is non-continuous. The second surface has a plurality of second contact portions. The plurality of second contact portions are constructed so that the transition between adjacent second contact portions is discontinuous.

With the clamp ring according to the first aspect, a tubular portion that can be applied to a wide range of bicycles having different diameters can be provided. In addition, this allows for a more simplified structure and reliable attachment. In particular, by providing multiple first contact portions and multiple second contact portions with innovative discontinuous transitions, it can be ensured that the first jaw member and the second jaw member can each be more than one The contact point contacts the tubular portion of the bicycle. Depending on the diameter of the tubular portion of the bicycle, multiple contact points are distributed among the multiple first and second contact portions to ensure that there are always at least sufficient multiple contact points. Therefore, the clamp ring can be firmly installed on different tubular portions of bicycles having different diameters without any optional fittings or the like. Therefore, an improved clamp ring that allows a simplified structure and can be widely used can be provided.

According to a second aspect of the present invention, the clamp ring according to the first aspect is constructed so that at least three first contacts are provided on the plurality of first contact portions and the plurality of second contact portions point. The at least three first contact points are constructed to contact the tubular portion having the first diameter in the jaw state.

With the clamp ring according to the second aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment. The at least three first contact points allow the clamp ring to be reliably attached to the tubular portion having the first diameter.

According to a third aspect of the present invention, the clamp ring according to the second aspect is constructed so that at least three second contacts are provided on the plurality of first contact portions and the plurality of second contact portions point. The at least three second contact points are configured to contact the tubular portion having a second diameter different from the first diameter in the jaw state.

With the clamp ring according to the third aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment. Even if the second diameter of the tubular portion is different from the first diameter, there are still at least three second contact points to ensure the desired exact positioning. Therefore, the at least three second contact points produce a reliable attachment of the clamp ring to the tubular portion having the second diameter.

According to a fourth aspect of the present invention, a clamp ring for clamping a tubular portion of a bicycle includes a base member, a first clamping member, a second clamping member, and a coupling member. The first jaw member is pivotally mounted on the base member and has a first surface facing the tubular portion in the jaw state of the jaw clamping jaw of the tubular portion. The second jaw member is pivotally mounted on the base member and has a second surface facing the tubular portion in the jaw state. The coupling structure couples the first jaw member and the second jaw member to pivot relative to each other. The first surface has a plurality of first contact portions. The second surface has a plurality of second contact portions. At least three first contact points are provided on the plurality of first contact portions and the plurality of second contact portions. The at least three first contact points are constructed to contact the tubular portion having the first diameter in the jaw state. At least three second contact points are provided on the plurality of first contact portions and the plurality of second contact portions. The at least three second contact points are configured to contact the tubular portion having a second diameter different from the first diameter in the jaw state.

With the clamp ring according to the fourth aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment. In particular, by providing a plurality of first contact portions and a plurality of second contact portions, it can be ensured that the first jaw member and the second jaw member can respectively contact the tubular portion of the bicycle at more than one contact point . Since at least three contact points are provided regardless of the diameter of the tubular portion of the bicycle, the clamp ring can be used for a variety of different tubular portions with different diameters. Therefore, it is possible to omit the known optional fittings required to compensate for the difference in diameter of different tubular portions of the bicycle under normal conditions. Therefore, an improved clamp ring that includes a simplified structure and can be widely used is provided.

According to a fifth aspect of the present invention, the clamp ring according to any one of the first to fourth aspects is constructed such that each of the plurality of first contact portions is a first flat contact surface.

With the clamp ring according to the fifth aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment. In particular, by providing several first flat contact surfaces inclined to each other, a discontinuous structure of the first surface can be achieved.

According to a sixth aspect of the present invention, the clamp ring according to the fifth aspect is constructed such that at least four first flat contact surfaces are provided on the first surface.

With the clamp ring according to the sixth aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment. The at least four first flat contact surfaces ensure reliable attachment of the clamp ring to the tubular portion of the bicycle.

According to a seventh aspect of the present invention, the clamp ring according to any one of the first to sixth aspects is constructed such that each of the plurality of second contact portions is a second flat contact surface.

With the clamp ring according to the seventh aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment. In particular, by providing several second flat contact surfaces inclined to each other, a non-continuous structure of the second surface can be achieved.

According to an eighth aspect of the present invention, the clamp ring according to the seventh aspect is constructed such that at least four second flat contact surfaces are provided on the second surface.

With the clamp ring according to the eighth aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment. The at least four second flat contact surfaces ensure reliable attachment of the clamp ring to the tubular portion of the bicycle.

According to a ninth aspect of the present invention, the clamp ring according to any one of the first to eighth aspects further includes a first pivot, the first pivot is provided on the base member and defines a first pivot axis, and the first A jaw member pivots about the first pivot axis.

With the clamp ring according to the ninth aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment. In particular, the first pivot shaft allows simplified installation and adjustment of the clamp ring with respect to different diameters of different tubular portions of the bicycle.

According to a tenth aspect of the present invention, the clamp ring according to any one of the first to ninth aspects further includes a second pivot, the second pivot is provided on the base member and defines a second pivot axis, and the first The two jaw members pivot about the second pivot axis.

With the clamp ring according to the tenth aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment. In particular, the second pivot shaft allows simplified installation and adjustment of the clamp ring with respect to different diameters of different tubular portions of the bicycle. In addition, the second pivot relieves the first pivot from receiving the force induced via the second jaw member. Because the second pivot can be spaced from the first pivot, any complicated structure or assembly of different diameters for the tubular portion can be improved.

According to an eleventh aspect of the invention, a bicycle assembly includes a clip ring according to any one of the first to tenth aspects.

With the bicycle assembly according to the eleventh aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment.

According to a twelfth aspect of the present invention, the bicycle assembly according to the eleventh aspect further includes a movable member movably coupled to the base member.

With the bicycle assembly according to the twelfth aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment.

According to a thirteenth aspect of the present invention, the clip ring according to the twelfth aspect is constructed so that the movable member includes a chain cage constructed to be movable relative to the base member.

With the bicycle component according to the thirteenth aspect, wide applicability can be improved while allowing a more simplified structure and reliable attachment. In particular, because the chain cage can move relative to the base member or the tubular portion, the chain cage can follow or guide the movement of the chain in, for example, the lateral direction during the shifting process.

The invention and its many advantages associated therewith are better understood by referring to the following detailed description of selected embodiments of the invention made with reference to the accompanying drawings, and the invention can be easily obtained And a more complete evaluation of the many advantages that accompany it.

The following describes selected embodiments of the present invention with reference to the accompanying drawings, in which the same element symbols are used to indicate corresponding or identical elements in different drawings. It is obvious to those skilled in the art that the following description is provided only to illustrate and not to limit the present invention, because the present invention is defined by the appended patent claims and their equivalents. Exemplary embodiments of bicycle components and clamp rings

Reference is first made to FIG. 1, which shows a bicycle 1. The bicycle 1 includes a bicycle frame 2, a front fork 2A, and a drive mechanism 4. The drive mechanism 4 actuates the rear wheel 4B rotatably coupled to the bicycle frame 2. The bicycle 1 also includes a front wheel 4A rotatably coupled to the front fork 2A. In addition, the handlebar 6 and the seat 8 are provided so that the user can easily handle it. The bicycle 1 further includes a shifting device 10. In particular, the shift device 10 includes a chain separately attached to the bicycle frame 2, a front shift device 10A, and a rear shift device 10B. All the components described above are known in the prior art, so they are not described in detail in this case for simplicity and clarity. In addition, the bicycle 1 is not limited to the above-mentioned components, but takes into account any other components of the bicycle known in the art.

The bicycle 1 is further equipped with at least one innovative clip ring 20 according to the invention. Although the bicycle 1 is shown as a type of common bicycle, the clip 20 is not limited to use with such a common bicycle, but can also be used with other types of bicycles, such as road racing bicycles Or mountain bike. Here, the clamp ring 20 is constructed to attach at least one bicycle assembly 12 to the tubular portion 14 of the bicycle 1. In this embodiment, the bicycle assembly 12 is a front shifting device 10A in the form of a front derailleur, and the bicycle assembly 12 includes an innovative clamp ring 20 for clamping the seat tube of the bicycle 1.

However, the present invention is not limited to the configuration described. The clamp ring 20 can be applied to any other tubular portion of the bicycle. In one example, the clamping ring 20 clamps a part of the handlebar 6 to rigidly fix any operating element, such as a lever or a bicycle computer. In another embodiment, the clamp ring 20 clamps the front fork 2A of the bicycle frame 2 to thereby attach any sensor or lighting device. Therefore, the wide applicability described also applies to the bicycle assembly 12 to be attached. Therefore, the clamp ring 20 is a generally available attachment mechanism for the tubular portion 14 of any different size or diameter to attach any kind of bicycle assembly 12 known in the art.

As shown in FIG. 2, the front derailleur (front shifter) 10A includes a clamp ring 20 for clamping the tubular portion 14 (ie, seat tube) of the bicycle 1. The front derailleur 10A also includes a movable member 16 that provides a modifiable position relative to the bicycle 1. In particular, the movable member 16 is movably coupled to the base member 22 of the clamp ring 20. The movable member 16 includes a chain cage 18, a first link 19A, and a second link 19B. The first link 19A and the second link 19B are pivotally provided on the base member 22 and the chain cage 18 to be realized between the chain cage 18, the first link 19A, the second link 19B, and the clamp ring 20 Four-bar linkage. However, any other movable coupling is also considered not to limit the specific functions of a given device.

The chain cage 18 is constructed to be movable relative to the base member 22. The chain cage 18 is constructed to move the chain in the lateral direction of the bicycle frame 2 to implement a shift operation. In particular, the chain cage 18 moves the chain between adjacent front sprockets. The detailed structure and function of these components are known in the art. Therefore, no detailed explanation is given here for the sake of brevity and clarity.

Hereinafter, by referring to FIGS. 3 to 10, the specific structure of the clamp ring 20 according to the embodiment of the present invention will be described. The clamp ring 20 includes a base member 22, a first jaw member 24A, and a second jaw member 24B. The first jaw member 24A is pivotally attached to the base member 22. Similarly, the second jaw member 24B is pivotally attached to the base member 22. In this regard, the clamp ring 20 includes a coupling structure 32 that couples the first jaw member 24A and the second jaw member 24B to pivot relative to each other. Due to the pivotal movement of the first jaw member 24A and the second jaw member 24B, the tubular portion 14 of the bicycle 1 placed between the first jaw member 24A and the second jaw member 24B can be jawed.

The base member 22 of the clamp ring 20 includes a main body 26. The main body 26 has a rectangular shape and is made of a metal material such as steel, steel alloy, or aluminum alloy. However, the present invention is not limited to this. In one example, a body 26 having any other aerodynamic, functionally advantageous, or attractive shape can be used to fulfill the requirements of the invention. In another example, the base member 22 is made of different suitable materials such as any known carbon or plastic materials to provide the required strength.

The main body 26 includes a top portion 26A and a bottom portion 26B. According to this embodiment, the base member 22 also includes a recess 28. In particular, the recess 28 is provided between the top portion 26A and the bottom portion 26B of the main body 26 and faces the tubular portion 14 in the jaw state. The recess 28 is constructed to receive the first end 24A1 of the first jaw member 24A. The recess 28 is further constructed to receive the first end 24B1 of the second jaw member 24B. Therefore, the first jaw member 24A and the second jaw member 24B are at least partially disposed between the top portion 26A and the bottom portion 26B to allow the first jaw member 24A and the second jaw member 24B to oppose The base member 22 pivotally moves.

The base member 22 is constructed to be connected to any known bicycle assembly 12, such as the front derailleur described above and shown in FIG. In this regard, the body 26 may include any coupling mechanism that is compatible with corresponding components attached to the bicycle assembly 12. In this way, the clip ring 20 provides wide applicability with respect to any kind of bicycle assembly 12 to be attached to the tubular portion 14. According to another embodiment, the base member 22 and one part of the bicycle assembly 12 form a single member. Here, individual configurations can be considered during the manufacturing process of the bicycle assembly 12 to provide an integrated attachment mechanism.

The clamp ring 20 further includes a first pivot 30A disposed on the base member 22 that defines a first pivot axis P1, and the first jaw member 24A pivots about the first pivot axis P1. In particular, the first pivot 30A is provided in the recess 28 between the top portion 26A and the bottom portion 26B of the main body 26. The two ends of the first pivot 30A are fixed to a part of the top part 26A and a part of the bottom part 26B, respectively. In addition, the remaining part of the first pivot 30A passes through the first end 24A1 of the first jaw member 24A so that the first jaw member 24A can be pivotally mounted.

Likewise, the clamp ring 20 further includes a second pivot 30B disposed on the base member 22 that defines a second pivot axis P2, and the second jaw member 24B pivots about the second pivot axis P2. The second pivot 30B is provided in the recess 28 between the top portion 26A and the bottom portion 26B of the main body 26. In addition, the two ends of the second pivot 30B are also fixed to a part of the top part 26A and a part of the bottom part 26B, respectively. The remaining part of the second pivot 30B passes through the first end 24B1 of the second jaw member 24B so that the second jaw member 24B can be pivotally mounted.

In this embodiment, the first pivot 30A and the second pivot 30B are arranged parallel to and spaced apart from each other to separately receive the first end 24A1 of the first jaw member 24A and the second jaw member 24B The first end 24B1. However, the present invention is not limited to this. In another example, the first jaw member 24A and the second jaw member 24B are attached to the base member 22 by only one pivot. In this case, the pivot passes through the first end 24A1 of the first jaw member 24A and through the first end 24B1 of the second jaw member 24B.

In one example, the clamp ring 20 further includes at least one biasing member, such as a spring, for biasing at least one of the first jaw member 24A and the second jaw member 24B. The biasing force applied by the biasing member may be directed clockwise or counterclockwise with respect to the first pivot axis P1 and the second pivot axis P2. In one embodiment, two biasing members may be provided to bias the first jaw member 24A and the second jaw member 24B in different directions. Preferably, the first jaw member 24A and the second jaw member 24B are biased to pivot relative to each other about the first pivot axis P1 and the second pivot axis P2.

As shown in FIGS. 7 and 8, the coupling structure 32 includes a jaw bolt 34A and a jaw nut 34B for adjusting the pivotal movement of the first jaw member 24A and the second jaw member 24B relative to each other. The second jaw member 24B includes a second end 24B2 opposite to the first end 24B1. The second end 24B2 includes an elongated through hole 36 for receiving a portion of the coupling structure 32. The first jaw member 24A also includes a second end 24A2 opposite the first end 24A1. The second end 24A2 also includes a through hole 38 for receiving another part of the coupling structure 32. In this embodiment, the head of the jaw bolt 34A abuts the second end 24B2 of the second jaw member 24B. The jaw bolt 34A further extends through the elongated through-hole 36 and through-hole 38 to allow specific settings between the second end 24A2 of the first jaw member 24A and the second end 24B2 of the second jaw member 24B distance. The jaw nut 34B is positioned at the second end 24A2 of the first jaw member 24A to engage with the jaw bolt 34A. In one example, the jaw nut 34B is disposed within a recess located at the second end 24A2 of the first jaw member 24A to prevent the jaw nut 34B from rotating relative to the second end 24A2.

By rotating the jaw bolt 34A clockwise or counterclockwise, the distance between the second end 24A2 of the first jaw member 24A and the second end 24B2 of the second jaw member 24B can be adjusted. Therefore, when the distance between the second end 24A2 and the second end 24B2 is reduced relative to each other, the clamp ring 20 reaches a clamping state for clamping the tubular portion 14 of the bicycle 1.

Referring to FIGS. 3 to 10, the first jaw member 24A includes a first surface 40A facing the tubular portion 14 in a jaw state in which the clamp ring 20 clamps the tubular portion 14. In addition, the first surface 40A has a plurality of first contact portions 42A. The plurality of first contact portions 42A are constructed so that the transition between adjacent first contact portions 42A is discontinuous ( non-continuous). In particular, each of the plurality of first contact portions 42A is a first flat contact surface. In this embodiment, there are six first flat contact surfaces provided on the first surface 40A.

In addition, the second jaw member 24B includes a second surface 40B facing the tubular portion 14 in a jaw state in which the clamp ring 20 clamps the tubular portion 14. The second surface 40B has a plurality of second contact portions 42B. The plurality of second contact portions 42B are constructed so that the transition between adjacent second contact portions 42B is discontinuous. In particular, each of the plurality of second contact portions 42B is a second flat contact surface. In this embodiment, there are six second flat contact surfaces provided on the second surface 40B.

The first jaw member 24A and the second jaw member 24B are made of a metal material, such as steel, steel alloy, or aluminum alloy. However, the present invention is not limited to this. In one example, any other suitable material including carbon or any known plastic material may be used to reduce the weight of the device of the present invention. In another example, the first surface 40A and the second surface 40B are coated with another material, such as a non-slip coating, to improve the attachment between the clamp ring 20 and the tubular portion 14.

As shown in FIGS. 5 and 6, the outer surface of the first jaw member 24A and the outer surface of the second jaw member 24B have a semicircular shape including a continuous structure. However, both the second end 24A2 and the second end 24B2 extend radially outward to receive the coupling structure 32 described. Of course, any other shape or configuration may be used.

Regarding the first jaw member 24A, the plurality of first contact portions (first flat contact surfaces) 42A are inclined to each other to produce a discontinuity structure of the first surface 40A. The same is true for the second jaw member 24B. The plurality of second contact portions (second flat contact surfaces) 42B are inclined to each other to produce a discontinuous structure of the second surface 40B. According to further embodiments, the angle of inclination may vary according to the specific requirements of the provided clamp ring 20. In one example, each of the plurality of first and second contact portions is a ribbed surface. Another example is to implement the discontinuous structure with multiple rounded surfaces.

11 and 12, the following describes the clamp ring 20 in a clamping state for two tubular portions 14 of different diameters. As shown in FIG. 11, in order to achieve the above-mentioned jaw state, the jaw bolt 34A is tightened to move the first jaw member 24A and the second jaw member 24B toward each other. Therefore, the first jaw member 24A and the second jaw member 24B pivot relative to each other about the first pivot axis P1 and the second pivot axis P2, respectively.

Thus, there are at least three first contact points 44 on the plurality of first contact portions 42A and the plurality of second contact portions 42B. The first contact point 44 is constructed to contact the tubular portion 14 having the first diameter D1 in the jaw state. In this embodiment, four first contact points 44 are provided on the plurality of first contact portions 42A and the plurality of second contact portions 42B. As such, the innovative configuration of the clamp ring 20 ensures that the clamp ring 20 is reliably attached to the tubular portion 14 having the first diameter D1.

Referring to FIG. 12, the second diameter D2 of the tubular portion 14 is different from the first diameter D1 of FIG. 11. In this embodiment, the second diameter D2 is smaller than the first diameter D1. In another example, the second diameter D2 is greater than the first diameter D1. The jaw bolt 34A is tightened again to move the first jaw member 24A and the second jaw member 24B toward each other to achieve a jaw state. Therefore, the first jaw member 24A and the second jaw member 24B pivot relative to each other about the first pivot axis P1 and the second pivot axis P2, respectively.

Because the second diameter D2 of the tubular portion 14 is smaller than the first diameter D1, the second end 24A2 of the first jaw member 24A is closer to the second end 24B2 of the second jaw member 24B. Although the above-mentioned first contact point 44 no longer exists, there are at least three different from the first contact point 44 on the plurality of first contact portions 42A and the plurality of second contact portions 42B Second contact point 46. The second contact point 46 is constructed to contact the tubular portion 14 having the second diameter D2 in the jaw state. In this embodiment, four second contact points 46 are provided on the plurality of first contact portions 42A and the plurality of second contact portions 42B.

The second contact point 46 is provided at a portion of the plurality of first contact portions 42A and the plurality of second contact portions 42B other than the portion where the first contact point 44 is located. However, this depends on the specific size of the clamp ring 20 and the diameter of the tubular portion 14 to be clamped. Here, each of the four first contact points 44 is disposed at the outermost first contact portion 42A or second contact portion 42B closest to the first end 24A1, 24B1 and the second end 24A2, 24B2 on. On the contrary, the provided four second contact points 46 are located closer to each other on the first surface 40A and the second surface 40B. This can be clearly derived from comparing FIGS. 11 and 12.

Therefore, the clip ring 20 of the present invention described above ensures that there are multiple contact points 44, 46 for different diameters D1, D2 of the tubular portion 14 of the bicycle 1. Therefore, the clamp ring 20 can be widely applied to different diameters D1, D2 of the tubular portion 14 of the bicycle 1. This further ensures reliable attachment and simplified structure of the clamp ring 20 of the present invention.

Although only one exemplary embodiment is described in detail to illustrate the present invention, it will be obvious to those skilled in the art from this disclosure that, without departing from the scope defined by the accompanying patent application claims and their equivalents Under the protection scope, various changes and corrections can be made.

1: Bicycle 2: Bicycle frame 2A: Front fork 4: Drive mechanism 4A: Front wheel 4B: Rear wheel 6: Handlebar 8: Seat 10: Shifting device 10A: Front shifting device, front derailleur 10B: Rear shifting device 12: Bicycle assembly 14: Tubular portion 16: Movable member 18: Chain cage 19A: First link 19B: Second link 20: Clamp ring 22: Base member 24A: First jaw member 24A1 : First end 24A2: Second end 24B: Second jaw member 24B1: First end 24B2: Second end 26: Main body 26A: Top part 26B: Bottom part 28: Recess 30A: First Pivot 30B: Second pivot 32: Coupling structure 34A: Jaw bolt 34B: Jaw nut 36: Elongated through hole 38: Through hole 40A: First surface 40B: Second surface 42A: First contact portion 42B: Second contact part 44: First contact point 46: Second contact point D1: First diameter D2: Second diameter P1: First pivot axis P2: Second pivot axis

FIG. 1 is a side view of a bicycle equipped with a bicycle assembly including a clamp ring according to the present invention.

2 is a front view of the front derailleur of the bicycle of FIG. 1 including a clip ring according to an embodiment of the present invention.

3 is a perspective view of a clamp ring according to an embodiment of the present invention.

4 is another perspective view of the clamp ring of FIG. 3.

5 is a top view of the clamp ring of FIG. 3.

6 is a bottom view of the clamp ring of FIG. 3.

7 is a side view of the clamp ring of FIG. 3.

8 is another side view of the clamp ring of FIG. 3.

9 is a front view of the clamp ring of FIG. 3.

Fig. 10 is a rear view of the clamp ring of Fig. 3.

11 is a top view of the clamp ring of FIG. 3 in a jaw state of a tubular portion having a first diameter for a bicycle.

12 is a top view of the clamp ring of FIG. 3 in a clamped state of a tubular portion having a second diameter for a bicycle.

20: clamp ring

22: Base member

24A: First jaw member

24A1: the first end

24A2: second end

24B: Second jaw member

24B1: the first end

24B2: Second end

26: main body

26A: Top part

26B: Bottom part

28: recess

30A: the first pivot

30B: Second pivot

32: coupling structure

34A: Clamp bolt

36: elongated through hole

38: through hole

40A: First surface

42A: The first contact part

P1: The first pivot axis

P2: Second pivot axis

Claims (13)

A clamping ring for clamping a tubular part of a bicycle, the clamping ring comprising: a base member; a first clamping member, which is pivotally mounted on the base member and has the clamping ring clamping the tubular part A first surface facing the tubular portion in the jaw state; a second jaw member pivotally mounted on the base member and having a second surface facing the tubular portion in the jaw state ; And 　　 coupling structure, which couples the first jaw member and the second jaw member to pivot relative to each other, wherein the first surface has a plurality of first contact portions, the plurality of first contacts The part is constructed such that the transition between adjacent first contact parts is non-continuous, and the second surface has a plurality of second contact parts, the plurality of second The contact portion is constructed so that the transition between adjacent second contact portions is discontinuous. The clamp ring as described in item 1 of the patent application scope, wherein at least three first contact points are provided on the plurality of first contact portions and the plurality of second contact portions, and the at least three first contact points are provided The contact point is constructed to contact the tubular portion having the first diameter in the jaw state. The clamp ring as described in item 2 of the patent application scope, in which at least three second contact points are provided on the plurality of first contact portions and the plurality of second contact portions, and the at least three second contact points are provided The contact point is configured to contact the tubular portion having a second diameter different from the first diameter in the jaw state. The clamp ring as described in item 1 or item 2 of the patent application scope, wherein each of the plurality of second contact portions is a second flat contact surface. The clamp ring as described in item 4 of the patent application scope, wherein at least four of the second flat contact surfaces are provided on the second surface. The clamp ring as described in item 1 or 2 of the scope of the patent application further includes: a first pivot, which is disposed on the base member and defines a first pivot axis, and the first jaw member surrounds the first A pivot axis pivots. The clamp ring as described in item 1 or 2 of the scope of the patent application further includes: a second pivot, which is provided on the base member and defines a second pivot axis, and the second jaw member surrounds the first The second pivot axis pivots. A clamping ring for clamping a tubular part of a bicycle, the clamping ring comprising: a base member; a first clamping member, which is pivotally mounted on the base member and has the clamping ring clamping the tubular part A first surface facing the tubular portion in the jaw state; a second jaw member pivotally mounted on the base member and having a second surface facing the tubular portion in the jaw state ; And 　　 coupling structure, which couples the first jaw member and the second jaw member to pivot relative to each other, wherein the first surface has multiple first contact portions, and the second surface has multiple A second contact portion, at least three first contact points are provided on the plurality of first contact portions and the plurality of second contact portions, the at least three first contact points are constructed in the clamp In the clamped state, it is in contact with the tubular portion having the first diameter, at least three second contact points are provided on the plurality of first contact portions and the plurality of second contact portions, and the at least three second contact points are provided The two contact points are constructed to contact the tubular portion having a second diameter different from the first diameter in the jaw state. The clamp ring as described in item 1, item 2, item 3, or item 8 of the patent application scope, wherein each of the plurality of first contact portions is a first flat contact surface. The clip ring as described in item 9 of the patent application scope, wherein at least four of the first flat contact surfaces are provided on the first surface. A bicycle component, comprising: a clip ring according to any one of items 1 to 10 of the patent application scope. The bicycle assembly as described in item 11 of the patent application scope further includes: a movable member that is movably coupled to the base member. The bicycle assembly as described in item 12 of the patent application scope, wherein the movable member includes a chain cage constructed to be movable relative to the base member.

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