Spoke cap

Abstract

The utility model relates to a spoke cap head which comprises a rod body used for being connected with a spoke, a radial protruding portion arranged on the rod body in a protruding mode in the radial direction and a first concave-convex structure, and the first concave-convex structure is used for abutting against one concave-convex surface of a ring piece arranged on the rod body in a sleeved mode. The spoke cap head is arranged in a radial through hole of a rim in a penetrating mode through the rod body, and the radial protruding part abuts against one side of the rim. Therefore, the restraining force on the ring piece can be increased, the ring piece does not rotate relative to the ring piece at will, and installation operation is facilitated.

Description

Technical Field

[0001] This utility model relates to a wheel component, and more particularly to a spoke cap. Background Technology

[0002] The wheel rim is mainly made by using the left and right ends of the axle to the rim, and the multiple spokes are tensioned at the same time to keep the rim in a solid and reliable round state so that it can rotate and roll smoothly on the road. Therefore, the key to obtaining a solid and reliable wheel rim is whether the spokes are evenly tensioned.

[0003] Generally, spokes and rims are securely joined using a spoke cap (or brass cap), which also allows for further adjustment of spoke tension. A conventional spoke cap includes a shaft for connecting the spokes and a radially projecting portion from the shaft. A washer is fitted onto the radially projecting portion. The spoke cap passes through a radial hole in the rim via the shaft, while the radially projecting portion is abutted against one side of the rim. However, the washer is prone to rotation relative to the shaft and is unstable, causing significant problems during spoke installation.

[0004] Therefore, it is necessary to provide a novel and progressive spoked cap to solve the above-mentioned problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a spoke cap head that can increase the restraining force between components and prevent them from rotating relative to each other at will, which is beneficial for installation.

[0006] To achieve the above objectives, the present invention provides a spoke cap, comprising a shaft for connecting a spoke, a radially protruding portion protruding from the shaft, and a first concave-convex structure. The first concave-convex structure is abutted against a concave-convex surface of a ring fitted on the shaft. The spoke cap is formed by the shaft passing through a radial hole in a rim, and the radially protruding portion is abutted against one side of the rim.

[0007] The shaft also includes a first end and a second end, at least one of which includes a non-circular outer circumferential surface, and the shaft also includes an internal threaded hole that is screwed to the spoke.

[0008] The first concave-convex structure is provided on the radial convex portion.

[0009] The spoke cap further includes a washer set on the shaft, the washer including a second concave-convex structure that abuts against the first concave-convex structure.

[0010] The second concave-convex structure is engaged with the first concave-convex structure without relative rotation.

[0011] The second concave-convex structure includes at least one radially extending structure.

[0012] The second concave-convex structure includes multiple laterally connected extension structures.

[0013] The first concave-convex structure includes at least one radially extending structure.

[0014] The radial protrusion includes an annular surface, and the first concave-convex structure is disposed on the annular surface.

[0015] The shaft further includes a first end and a second end, at least one of which includes a non-circular outer peripheral surface. The shaft also includes an internal threaded hole for screwing into the spoke. The radial protrusion includes an annular surface, and the first concave-convex structure is disposed on the annular surface. The second concave-convex structure is disposed on the inner annular surface of the washer. The first concave-convex structure includes a plurality of radial extension structures. The second concave-convex structure includes a plurality of radial extension structures. The plurality of radial extension structures of the second concave-convex structure are engaged with the plurality of radial extension structures of the first concave-convex structure without relative rotation. The washer includes two side surfaces, a circumferential inclined surface connecting the two side surfaces, and a gradually expanding hole penetrating between the two side surfaces and gradually expanding toward the radial protrusion. The hole wall of the gradually expanding hole faces the annular surface.

[0016] The beneficial effects of this utility model are: it can increase the restraining force between components and prevent them from rotating relative to each other at will, which is beneficial for installation. Attached Figure Description

[0017] Figure 1 This is a perspective view of one embodiment of the present invention.

[0018] Figure 2 This is an exploded view of one embodiment of the present invention.

[0019] Figure 3 This is a cross-sectional view of one embodiment of the present invention.

[0020] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0021] Figure 5 This is another cross-sectional view of an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram illustrating the application of one embodiment of the present invention.

[0023] Figure 7 This is an exploded view of another embodiment of the present invention.

[0024] Figure 8 This is a cross-sectional view of another embodiment of the present invention.

[0025] Figure 9 for Figure 8A magnified view of a portion of the image.

[0026] 1: Spoke cap

[0027] 10: Shaft

[0028] 11: First end

[0029] 12: Second end

[0030] 13: Internal threaded hole

[0031] 20: Radial convex part

[0032] 21: Torus

[0033] 30: First concave-convex structure

[0034] 31: Radial Extension Structure

[0035] 40,40a: Wasi

[0036] 41, 41a: Second concave-convex structure

[0037] 411: Radial Extension Structure

[0038] 411a: Extended structure

[0039] 412a: Groove

[0040] 42: Side view

[0041] 43: Circumferential Sloping Surface

[0042] 44: Gradual expanding hole

[0043] 100: Wheel rim

[0044] 101: Spokes

[0045] 102: Radial perforation Detailed Implementation

[0046] The following examples illustrate possible implementations of this utility model, but are not intended to limit the scope of protection of this utility model. The prefixes "a" or "at least one" before the terms mentioned herein are not intended to limit the quantity. Depending on the requirements, there may also be "multiple" items. This variation in quantity is also within the scope of protection, and is therefore stated in advance.

[0047] Please refer to Figures 1 to 6This illustration shows an embodiment of the present invention. The spoke cap 1 of the present invention includes a shaft 10 for connecting a spoke 101, a radially projecting portion 20 on the shaft 10, and a first concave-convex structure 30. The first concave-convex structure 30 is abutted against a concave-convex surface of a ring fitting disposed on the shaft 10. The spoke cap is formed by the shaft 10 passing through a radial through hole 102 of a rim 100, while the radially projecting portion 20 is abutted against one side of the rim 100. This increases the restraining force on the ring fitting (e.g., a washer) to prevent arbitrary relative rotation, facilitating installation.

[0048] The shaft 10 further includes a first end 11 and a second end 12. At least one of the first end 11 and the second end 12 includes a non-circular outer peripheral surface (e.g., square, hexagonal, or a shape that is convenient for use with disassembly tools). The shaft 10 also includes an internal threaded hole 13 for screwing into the spoke 101. Preferably, both the first end 11 and the second end 12 include the non-circular outer peripheral surface, so that the locking, loosening, and tension adjustment of the spoke cap 1 and the spoke 101 can be performed on the inner and outer sides of the rim 100, respectively or simultaneously.

[0049] In this embodiment, the first concave-convex structure 30 is disposed on the radial protrusion 20. The spoke cap 1 further includes a washer 40, which includes a second concave-convex structure 41. The second concave-convex structure 41 abuts against the first concave-convex structure 30, thereby stably limiting the washer 40 and preventing it from rotating freely relative to the radial protrusion 20. Further, the first concave-convex structure 30 includes at least one radial extension structure 31, and the second concave-convex structure 41 includes at least one radial extension structure 411. The second concave-convex structure 41 and the first concave-convex structure 30 are engaged without relative rotation. Preferably, the first concave-convex structure 30 includes multiple radial extension structures 31, and the second concave-convex structure 41 includes multiple radial extension structures 411. The multiple radial extension structures 411 of the second concave-convex structure 41 are engaged with the multiple radial extension structures 31 of the first concave-convex structure 30 without relative rotation, providing a reliable anti-rotation effect. The plurality of radial extension structures 31 of the first concave-convex structure 30 and the plurality of radial extension structures 411 of the second concave-convex structure 41 respectively include a plurality of alternating grooves and a plurality of long ribs. The first concave-convex structure 30 and the second concave-convex structure 41 are formed by, for example but not limited to, rolling, stamping, milling, drilling or any suitable processing method. The process is simple and fast and can significantly reduce manufacturing costs.

[0050] In detail, the radial protrusion 20 includes an annular surface 21, the first concave-convex structure 30 is disposed on the annular surface 21, and the second concave-convex structure 41 is disposed on the inner annular surface of the washer 40. When the spokes are tensioned, the annular surface 21 can automatically guide and balance the tension, and can prevent the spokes 101 from bending or deforming due to lateral forces. The washer 40 includes two side surfaces 42, a circumferential inclined surface 43 connecting the two side surfaces 42, and a gradually expanding hole 44 passing through the two side surfaces 42 and gradually expanding towards the radial protrusion 20, with the hole wall of the gradually expanding hole 44 facing the annular surface 21. When the spokes are tensioned, the hole wall of the gradually expanding hole 44 can automatically guide and balance the tension relative to the annular surface 21, and can prevent the spokes 101 from bending or deforming due to lateral forces.

[0051] In such Figures 7 to 9 In another embodiment, the second concave-convex structure 41a of the washer 40a includes a plurality of laterally connected extension structures 411a. Specifically, the plurality of extension structures 411a are arranged in a mesh and define a plurality of grooves 412a, thereby the washer 40a also has a good anti-rotation effect.

Claims

1. A spoked cap head, characterized in that: It includes a shaft for connecting a spoke, a radially protruding portion of the shaft, and a first concave-convex structure. The first concave-convex structure is abutted against a concave-convex surface of a ring fitted on the shaft. The spoke cap is formed by the shaft through a radial hole in a rim, and the radially protruding portion is blocked against one side of the rim.

2. The spoked cap as described in claim 1, characterized in that: The shaft also includes a first end and a second end, at least one of which includes a non-circular outer circumferential surface, and the shaft also includes an internal threaded hole that is screwed to the spoke.

3. The spoked cap as described in claim 1, characterized in that: The first concave-convex structure is provided on the radial convex portion.

4. The spoked cap as described in claim 3, characterized in that: It also includes a washer installed on the shaft, the washer including a second concave-convex structure that abuts against the first concave-convex structure.

5. The spoked cap as described in claim 4, characterized in that: The second concave-convex structure is engaged with the first concave-convex structure without relative rotation.

6. The spoked cap as described in claim 4, characterized in that: The second concave-convex structure includes at least one radially extending structure.

7. The spoked cap as described in claim 4, characterized in that: The second concave-convex structure includes multiple laterally connected extension structures.

8. The spoked cap as described in claim 1, characterized in that: The first concave-convex structure includes at least one radially extending structure.

9. The spoked cap as described in any one of claims 1 to 8, characterized in that: The radial protrusion includes an annular surface, and the first concave-convex structure is disposed on the annular surface.

10. The spoked cap as described in claim 5, characterized in that: The shaft also includes a first end and a second end, at least one of which includes a non-circular outer peripheral surface. The shaft also includes an internal threaded hole for screwing into the spoke. The radial protrusion includes an annular surface, and the first concave-convex structure is disposed on the annular surface. The second concave-convex structure is disposed on the inner annular surface of the washer. The first concave-convex structure includes a plurality of radial extension structures. The second concave-convex structure includes multiple radially extending structures; The plurality of radial extension structures of the second concave-convex structure are interlocked with the plurality of radial extension structures of the first concave-convex structure without relative rotation; the washer includes two side surfaces, a circumferential inclined surface connecting the two side surfaces, and a gradually expanding hole that passes through the two side surfaces and gradually expands toward the radial protrusion, the hole wall of the gradually expanding hole facing the annular surface.

Images