一种电动拨链器
By incorporating a buffer on the same side of the electric derailleur, vibration and impact forces are absorbed in a concentrated manner, solving the wear and precision issues of the electric derailleur, improving durability and appearance design, and achieving greater stability and compactness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANXI WHEEL TOP CYCLE IND
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing electric derailleurs have insufficient impact protection design, resulting in wear and tear, affecting accuracy, and having a less compact and aesthetically pleasing appearance.
In an electric derailleur, a first buffer is placed between the base and the derailleur, and a second buffer is placed between the chain guide and the first link. They are arranged on the same side to concentrate on dealing with vibration and impact, and torsion springs are used to absorb the impact and vibration.
It effectively extends the service life of the electric derailleur, improves durability and stability, reduces the impact of impact on derailleur accuracy, and simplifies the appearance design, making it more compact and aesthetically pleasing.
Smart Images
Figure CN224511378U_ABST
Abstract
Claims
1. An electric derailleur, comprising: Base (1); Chain guide device (2); The linkage assembly has a first link (3) and a second link (4), both of which are rotatably engaged with the base (1) and the chain guide device (2) respectively, and are controlled to swing synchronously to change the position of the chain guide device (2); The drive device (6) has a toggle (6B) that swings in a controlled manner and causes the first link (3) to rotate relative to the base (1); Its features are, The drive device (6) is mounted on the first connecting rod (3), a first buffer is provided between the base (1) and the actuating member (6B), and a second buffer is provided between the chain guide device (2) and the first connecting rod (3); or, The drive device (6) is mounted on the base (1), a first buffer is provided between the actuating member (6B) and the first connecting rod (3), and a second buffer is provided between the chain guide device (2) and the first connecting rod (3).
2. The motorized chain tensioner of claim 1, wherein, The drive device (6) is mounted on the first connecting rod (3). The first buffer is a first torsion spring (G1). The main body (G11) of the first torsion spring (G1) is configured to rotate around the first axis. One side of its torsion arm abuts against the actuating member (6B), and the other side of its torsion arm abuts against the base (1).
3. The motorized chain tensioner of claim 1, wherein, The drive device (6) is mounted on the base (1). The first buffer is a first torsion spring (G1). The main body (G11) of the first torsion spring (G1) is configured to rotate around the first axis. One side of its torsion arm abuts against the actuating member (6B), and the other side of its torsion arm abuts against the first connecting rod (3).
4. The motorized derailleur according to any one of claims 1 to 3, characterized in that, The second buffer is a second torsion spring (G2). The main body (G21) of the second torsion spring (G2) is configured to rotate around a second axis, with one side of its torsion arm abutting against the chain guide device (2) and the other side of its torsion arm abutting against the first connecting rod (3).
5. The motorized chain tensioner of claim 2, wherein, The first axis is the rotation axis of the first connecting rod (3) relative to the base (1).
6. The motorized chain tensioner of claim 4, wherein, The second axis is the rotation axis of the first connecting rod (3) relative to the chain guide device (2).
7. The motorized chain tensioner of claim 2, wherein, The actuating element (6B) oscillates around the first axis.
8. The motorized chain tensioner of claim 2, wherein, The first connecting rod (3) is rotatably engaged with the base (1) by means of the first pin (T1), the main body (G11) of the first torsion spring (G1) is sleeved on the first pin (T1), and a first wear-resistant part (Q1) is provided between the main body (G11) of the first torsion spring (G1) and the first pin (T1).
9. The motorized chain tensioner of claim 4, wherein, The first connecting rod (3) is rotatably engaged with the chain guide device (2) by means of the second pin (T2). The main body (G21) of the second torsion spring (G2) is sleeved on the second pin (T2). A second wear-resistant part (Q2) is provided between the main body (G21) of the second torsion spring (G2) and the second pin (T2).
10. The motorized chain tensioner of claim 4, wherein, The chain guide device (2) is provided with an embedding part for embedding one side torsion arm of the second torsion spring (G2), and / or the first connecting rod (3) is provided with an embedding part for embedding the other side torsion arm of the second torsion spring (G2).