Retraction device and feed mechanism having the same
US11668628B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2018 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | May 5, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/065
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A retraction device includes a spindle movable along the axis thereof and an operating unit including a pull rod and a movable member. The movable member defines a step-shaped groove, the pull rod has a first end connected to the spindle, and a second end received in the groove; the groove includes a first step and a second step and an inclined face connecting the first step and the second step arranged along a first direction, and a height of the second step is greater than that of the first step along the axis direction of the spindle; the movable member is slidable along the first direction relative to the pull rod, to allow the spindle to switch between a retraction position in which the pull rod is received in the second step, and a release position in which the pull rod is received in the first step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.