| 摘要 |
<p>An encoder dampening mechanism is provided that absorbs shock acting on an encoder having a peripheral shape that is a flat shape, and prevents failure of the encoder. In an encoder dampening mechanism for an electric spot welding gun (1) equipped with a motor (30) that is accommodated inside of a motor housing (20) and causes a hollow rotor (31) to rotate, and an encoder main body (51) that detects a rotation angle of the hollow rotor (31), the encoder dampening mechanism includes: a thin plate (53) that is formed with a top surface (532) that is larger in a surface area than a base surface of the encoder main body (51), and on which the base surface of the encoder main body (51) is installed within the top surface (532); and a thin plate mounting portion (55) that connects the thin plate (53) to the motor housing (20) via the thin plate support part (553) and the thin plate pressure part (554), which dampen vibration.</p> |
