| 发明名称 |
Torque wrench with “deadband” elimination and improved torque monitoring system |
| 摘要 |
A torque wrench comprising a hollow housing comprising an outer wall and an inner wall each having a proximal end and a distal end, the inner wall being spaced from the outer wall so as to provide a gap therebetween, the proximal end of the outer wall being connected to the proximal end of the inner wall, and the distal end of the outer wall being configured to engage a workpiece housing; a mechanical multiplier disposed within the inner wall, the mechanical multiplier comprising a torque input shaft and a torque output shaft, the mechanical multiplier being connected to the inner wall, and the torque output shaft being configured to engage a workpiece fastener; and a torque monitoring system comprising at least one strain gauge mounted to the inner wall proximally of the midpoint of the inner wall. |
| 申请公布号 |
US8991284(B2) |
申请公布日期 |
2015.03.31 |
| 申请号 |
US201313888933 |
申请日期 |
2013.05.07 |
| 申请人 |
|
发明人 |
Castle George L. |
| 分类号 |
B25B23/14;B25B17/02;B25B23/142 |
主分类号 |
B25B23/14 |
| 代理机构 |
Pandiscio & Pandiscio |
代理人 |
Pandiscio & Pandiscio |
| 主权项 |
1. A torque wrench comprising:
a hollow housing comprising a cylindrical outer wall having a proximal end and a distal end, and a cylindrical inner wall having a proximal end and a distal end, said cylindrical inner wall being spaced from said cylindrical outer wall so as to provide a cylindrical gap therebetween, said proximal end of said cylindrical outer wall being connected to said proximal end of said cylindrical inner wall, and said distal end of said cylindrical outer wall being configured to engage a workpiece housing; a mechanical multiplier disposed within said cylindrical inner wall of said hollow housing, said mechanical multiplier comprising a torque input shaft and a torque output shaft, said mechanical multiplier being connected to said cylindrical inner wall of said hollow housing, and said torque output shaft being configured to engage a workpiece fastener; and a torque monitoring system comprising at least one strain gauge mounted to said cylindrical inner wall of said hollow housing proximally of the midpoint of said cylindrical inner wall; wherein said at least one strain gauge extends circumferentially along said cylindrical inner wall of said hollow housing. |
| 地址 |
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