Tightening system
US9604329B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 22, 2012 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Feb 8, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23P19/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tightening system for tightening a fastening member includes: a driving section producing torque for tightening the fastening member; an extension bar coupled to the driving section and rotating by the torque; a spindle to which the torque is transmitted via the extension bar and which is connected to the extension bar such that the spindle moves forward or backward in a rotational axis direction of the extension bar with respect to the extension bar; a socket provided at a tip of the spindle and engages in the fastening member; a spindle case housing the spindle and helically spline-engaging with the spindle along a rotational axis direction of the spindle; an outer case housing the spindle case; and a switch for switching between held and separated states between the spindle case and the outer case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.