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EP-4741176-A1 - RIM ASSEMBLY WITH ANTI-ROTATION SPOKE

EP4741176A1EP 4741176 A1EP4741176 A1EP 4741176A1EP-4741176-A1

Abstract

The present invention relates to the technical field of rim spokes, specifically disclosing a rim assembly with an anti-rotation spoke, including a spoke (1), where a first connector (2) is fixedly installed at one end of the spoke (1), the first connector (2) is configured to be installed in an accommodation groove (52) of a hub (5), the first connector (2) includes a first anti-rotation portion (22), and the first anti-rotation portion (22) is configured to limitatively engage with the accommodation groove (52) of the hub (5) to restrict the first connector (2) from rotating within the accommodation groove (52) of the hub (5). The present invention can prevent the spoke (1) installed between a rim (4) and the hub (5) from rotating, improving assembly stability, and ensuring that during bicycle riding, the narrow side of the spoke (1) always faces the riding direction, reducing riding wind resistance and ensuring riding safety.

Inventors

  • LIU, Wurui
  • Xiao, Peilong

Assignees

  • Xiamen Carbonking Composites Technology Co., Ltd.

Dates

Publication Date
20260513
Application Date
20251105

Claims (10)

  1. . A rim assembly with an anti-rotation spoke, characterized by comprising a spoke (1), wherein a first connector (2) is fixedly installed at one end of the spoke (1), the first connector (2) is configured to be installed in an accommodation groove (52) of a hub (5), the first connector (2) comprises a first anti-rotation portion (22), and the first anti-rotation portion (22) is configured to limitatively engage with the accommodation groove (52) of the hub (5) to restrict the first connector (2) from rotating within the accommodation groove (52) of the hub (5).
  2. . The rim assembly with an anti-rotation spoke according to claim 1, characterized in that the first connector (2) further comprises a first bushing (21), the first anti-rotation portion (22) comprises an annular expanded diameter portion (221) disposed at an outer end of the first bushing (21) and extending radially outward, and an anti-rotation protrusion (222) disposed on one side of the annular expanded diameter portion (221).
  3. . The rim assembly with an anti-rotation spoke according to claim 2, characterized in that an extension direction of the anti-rotation protrusion (222) is perpendicular to an axial direction of the first bushing (21), and right-angle cut surfaces (223) are formed between two sides of the anti-rotation protrusion (222) and the annular expanded diameter portion (221).
  4. . The rim assembly with an anti-rotation spoke according to claim 2 or 3, characterized in that a flat cut surface (224) is formed on a side of the annular expanded diameter portion (221) away from the anti-rotation protrusion (222).
  5. . The rim assembly with an anti-rotation spoke according to at least one of claims 1 to 4, characterized in that a second connector (3) is fixedly installed at the other end of the spoke (1), the second connector (3) comprises a second bushing (31) having an external thread and a second anti-rotation portion (32) disposed at an inner end of the second bushing (31) and having an elliptical shape, and the second anti-rotation portion (32) is configured to be limitatively inserted into a spoke hole (41) of a rim (4).
  6. . The rim assembly with an anti-rotation spoke according to claim 5, characterized in that the first connector (2) is a cap head, the second connector (3) is a nut cap, the spoke (1) comprises a main body (11) and end heads (12) located at two ends of the main body (11), the main body (11) is flat, the end heads (12) are conical end heads that are small inside and large outside, conical holes corresponding to the conical end heads are respectively provided inside the nut cap and the cap head, and the nut cap and the cap head are respectively fixedly installed on the conical end heads at two ends of the main body (11) via the conical holes.
  7. . The rim assembly with an anti-rotation spoke according to claim 5 or 6, characterized in that two ends of the spoke (1) are connected to the hub (5) and the rim (4) via the first connector (2) and the second connector (3), respectively.
  8. . The rim assembly with an anti-rotation spoke according to claim 7, characterized in that an inner circumferential wall of the rim (4) is provided with a plurality of spoke holes (41), a shape of the spoke hole (41) is elliptical corresponding to a shape of the second anti-rotation portion (32), the second anti-rotation portion (32) is limitatively inserted into the spoke hole (41) of the rim (4), the hub (5) is provided with a plurality of accommodation groove holes, the accommodation groove hole comprises a lead-in hole (51) and the accommodation groove (52) located at an edge of the hub (5) and communicating with the lead-in hole (51), and the first connector (2) is led in through the lead-in hole (51) and pulled back to enable the first anti-rotation portion (22) to be limitatively installed in the accommodation groove (52).
  9. . The rim assembly with an anti-rotation spoke according to claim 8, characterized in that the accommodation groove (52) comprises a first groove (521) and a second groove (522) sequentially arranged in a direction away from the lead-in hole (51), the first anti-rotation portion (22) and the first bushing (21) are respectively and correspondingly limitatively installed in the first groove (521) and the second groove (522), the anti-rotation protrusion (222) is limitatively clamped at a groove opening of the first groove (521), and the flat cut surface (224) is limitatively clamped at a groove bottom of the first groove (521).
  10. . The rim assembly with an anti-rotation spoke according to at least one of claims 7 to 9, characterized in that the second anti-rotation portion (32) is limitatively inserted into the spoke hole (41) of the rim (4) in a fully hidden manner.

Description

TECHNICAL FIELD The present invention relates to the technical field of rim spokes, specifically to a rim assembly with an anti-rotation spoke. BACKGROUND ART The spoke mechanism of an existing rim includes a spoke, and a nut cap and a cap head respectively fixedly installed at two ends of the spoke. The cap head connects one end of the spoke to a hub, and the nut cap passes through a spoke hole of the rim and cooperates with a matching nut to connect the other end of the spoke to the rim. However, the nut cap and the cap head mostly have a cylindrical bushing structure, and thus the nut cap and the cap head are likely to rotate at the assembly holes of the rim and the hub. This causes the entire spoke mechanism to easily rotate during bicycle riding, resulting in insufficient assembly stability. The narrow side of the spoke cannot always face the riding direction, increasing riding wind resistance and affecting riding safety. DISCLOSURE OF INVENTION The present invention aims to provide a rim assembly with an anti-rotation spoke to solve the technical problems mentioned above. To achieve the above purpose, the technical solution of the present invention is as follows: The rim assembly with an anti-rotation spoke includes a spoke, where a first connector is fixedly installed at one end of the spoke, the first connector is configured to be installed in an accommodation groove of a hub, the first connector includes a first anti-rotation portion, and the first anti-rotation portion is configured to limitatively engage with the accommodation groove of the hub to restrict the first connector from rotating within the accommodation groove of the hub. Preferably, the first connector further includes a first bushing, and the first anti-rotation portion includes an annular expanded diameter portion disposed at an outer end of the first bushing and extending radially outward, and an anti-rotation protrusion disposed on one side of the annular expanded diameter portion. Preferably, an extension direction of the anti-rotation protrusion is perpendicular to an axial direction of the first bushing, and right-angle cut surfaces are formed between two sides of the anti-rotation protrusion and the annular expanded diameter portion. Preferably, a flat cut surface is formed on a side of the annular expanded diameter portion away from the anti-rotation protrusion. Preferably, a second connector is fixedly installed at the other end of the spoke, the second connector includes a second bushing having an external thread and a second anti-rotation portion disposed at an inner end of the second bushing and having an elliptical shape, and the second anti-rotation portion is configured to be limitatively inserted into a spoke hole of a rim. Preferably, the first connector is a cap head, the second connector is a nut cap, the spoke includes a main body and end heads located at two ends of the main body, the main body is flat, the end heads are conical end heads that are small inside and large outside, conical holes corresponding to the conical end heads are respectively provided inside the nut cap and the cap head, and the nut cap and the cap head are respectively fixedly installed on the conical end heads at two ends of the main body via the conical holes. Preferably, the rim assembly further includes a rim and a hub, and two ends of the spoke are connected to the hub and the rim via the first connector and the second connector, respectively. Preferably, an inner circumferential wall of the rim is provided with a plurality of spoke holes, a shape of the spoke hole is elliptical corresponding to a shape of the second anti-rotation portion, the second anti-rotation portion is limitatively inserted into the spoke hole of the rim, the hub is provided with a plurality of accommodation groove holes, the accommodation groove hole includes a lead-in hole and an accommodation groove located at an edge of the hub and communicating with the lead-in hole, and the first connector is led in through the lead-in hole and pulled back to enable the first anti-rotation portion to be limitatively installed in the accommodation groove. Preferably, the second anti-rotation portion is limitatively inserted into the spoke hole of the rim in a fully hidden manner. Preferably, the accommodation groove includes a first groove and a second groove sequentially arranged in a direction away from the lead-in hole, the first anti-rotation portion and the first bushing are respectively and correspondingly limitatively installed in the first groove and the second groove, the anti-rotation protrusion is limitatively clamped at a groove opening of the first groove, and the flat cut surface is limitatively clamped at a groove bottom of the first groove. The present invention has the following beneficial effects: The present invention includes a spoke, where a first connector is fixedly installed at one end of the spoke, the first connector is configured to be installed in