Lead screw actuator having axially movable plunger with compliance in both axial directions
US9512886B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2016 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Aug 4, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2025/2075
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An actuator can include a coil spring, a plunger, and a rotating member. The coil spring can include a plurality of coils disposed about an axis. The plunger can include a body and a follower. The follower can be fixedly coupled to the body. The body can be disposed about the axis. The follower can be received between adjacent ones of the coils. The rotating member can be rotatable about the axis and drivingly coupled to one of the coil spring and the plunger to rotate the one of the coil spring and the plunger about the axis. Rotation of the rotatable member can effect translation of the plunger, compression of the coil spring, or both translation of the plunger and compression of the coil spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.