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Title:
DRIVE DEVICE, AND DRIVE DEVICE USED IN HEAD-UP DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/054055
Kind Code:
A1
Abstract:
Provided are a drive device that minimizes rattling of a movable member in a movement direction, and a drive device used in a head-up display device. Specifically, a drive device 1 has a drive unit 3, a lead screw 4 rotatably driven by the drive unit 3, and a movable member 6 moved by driving force of the drive unit 3. The movable member 6 is provided with a main body unit 9, a driving force transmission unit 41 that transmits the driving force of the drive unit 3 to the main body unit 9, and preloading units 42, 43 provided separately from the main body unit 9. The driving force transmission unit 41 is provided with a first screw part threaded into the lead screw 4, and the driving force transmission unit 41 causes the main body unit 9 to move in an axial direction L of the lead screw 4 together with the rotation of the lead screw 4. The preloading units 42, 43 are provided with a second screw part threaded in the lead screw 4, and the preloading units 42, 43 impart a preload between the first screw part and the second screw part.

Inventors:
HATASAKO HIROYUKI (JP)
OHKAWA TAKANORI (JP)
KASUGA TAKAFUMI (JP)
UEKI TAKAHISA (JP)
Application Number:
JP2018/027514
Publication Date:
March 21, 2019
Filing Date:
July 23, 2018
Export Citation:
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Assignee:
NIDEC SANKYO CORP (JP)
International Classes:
F16H25/24; B60K35/00; G02B27/01; B60R11/02
Foreign References:
JP2016057470A2016-04-21
JP2014215459A2014-11-17
JP2016109974A2016-06-20
JP2015082104A2015-04-27
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