| 发明名称 | Power tools with reversible, self-shifting transmission | ||
| 摘要 | Illustrative embodiments of power tools with reversible, self-shifting transmissions are disclosed. In at least one illustrative embodiment, a power tool may comprise a motor having a motor shaft, an output shaft configured to be coupled to a tool element to rotate a fastener, and a transmission coupled between the motor shaft and the output shaft to transmit rotation from the motor shaft to the output shaft in a low-speed, high-torque mode and in a high-speed, low-torque mode. The transmission may be configured to self-shift between the low-speed, high-torque mode and the high-speed, low-torque mode in response to a change in a torque required to rotate the output shaft in both a clockwise direction and a counterclockwise direction. | ||
| 申请公布号 | US9017209(B1) | 申请公布日期 | 2015.04.28 |
| 申请号 | US201314144863 | 申请日期 | 2013.12.31 |
| 申请人 | Ingersoll-Rand Company | 发明人 | Seith Warren Andrew;Crescenti Aaron Michael |
| 分类号 | F16H3/44;B25F5/00;F16D43/16;F16H37/04;F16D43/30;F16H61/02 | 主分类号 | F16H3/44 |
| 代理机构 | Barnes & Thornburg LLP | 代理人 | Barnes & Thornburg LLP |
| 主权项 | 1. A power tool comprising: a motor having a motor shaft; an output shaft configured to be coupled to a fastener to rotate the fastener; and a transmission coupled between the motor shaft and the output shaft to transmit rotation from the motor shaft to the output shaft in a low-speed, high-torque mode and in a high-speed, low-torque mode, wherein the transmission is configured to self-shift between the low-speed, high-torque mode and the high-speed, low-torque mode in response to a change in a torque required to rotate the output shaft in both a clockwise direction and a counterclockwise direction. | ||
| 地址 | Davidson NC US | ||