# US 12,759,665 B2 · Skewer-wrench combination

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- Number: US 12,759,665 B2
- Document ID: US12759665B2
- Status: Granted
- Kind: B2
- Application number: 18/965,159
- Filed: 2024-12-02
- Published: 2025-06-19
- Granted: 2026-10-13
- Earliest claimed: 2023-12-15
- Assignees: Shun Xin Bicycle Component Co., Ltd.
- Applicants: Shun Xin Bicycle Component Co., Ltd.
- Inventors: Chin-Chao Chang
- Web page: https://patentgrep.com/patent/US12759665B2

## CPC

- B62K 25/02: for mounting axles rigidly on cycle frame or fork, e.g. adjustably
- B25B 15/008: {Allen-type keys}
- B62J 11/22: specially adapted for tools (containers for tools B62J9/40)
- B62K 2206/00: Quick release mechanisms adapted for cycles
- B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE
- B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B62J: CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS

## Abstract

A skewer-wrench combination includes a skewer, a hex key and a compensator. The skewer includes a thread at an end, a non-circular bore in an opposite end, and two grooves in a wall of the non-circular bore. The compensator includes two bent sections fitted in the grooves. The hex key includes a non-circular rod compliant with the non-circular bore. The non-circular rod is smaller than the non-circular bore so that the former is easily insertable in the latter. The non-circular rod is in tight contact with the bent sections of the compensator as the non-circular rod is inserted in the non-circular bore.

## Claims

### Claim 1

A skewer-wrench combination comprising:
a skewer (10) comprising a thread (111) at an end, a non-circular bore (121) in an opposite end, and two grooves (122) in a wall of the non-circular bore (121);
a compensator (20) comprising two bent sections (21) fitted in the grooves (122); and
a hex key (30) comprising a non-circular rod (34) compliant with the non-circular bore (121), wherein the non-circular rod (34) is smaller than the non-circular bore (121) so that the non-circular rod (34) is insertable in the non-circular bore (121), wherein the non-circular rod (34) is in tight contact with the bent sections (21) of the compensator (20) as the non-circular rod (34) is inserted in the non-circular bore (121).

### Claim 2 (depends on 1)

The skewer-wrench combination according to claim 1, wherein the compensator (20) is a U-shaped leaf spring formed with the bent sections (21).