Title:
GEARBOX ASSEMBLY AND HEADREST DRIVER COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2017/206569
Kind Code:
A1
Abstract:
Provided is a gearbox assembly (1), comprising a box body (2); a box cover (3); a lead screw (4) inserted into and passing through the box body (2) in a first direction; a worm gear (5), integrally formed on the lead screw (4); and a worm rod (6), disposed in the box body (2) in a second direction perpendicular to the first direction. The worm rod (6) is in an engagement transmission with the worm gear (5); the worm rod (6) is driven to rotate via a drive shaft, so that the worm rod (6) drives the worm gear (5) and the lead screw (4) to rotate together via a kinematic pair; and the lead screw (4) moves a lifting mechanism attached to the lead screw (4) up and down by means of screw drive. The box body (2) is further provided with a stop plug (15), and the stop plug (15) is disposed in an extension line of the free end of the drive shaft of the worm rod (6), and abuts against the free end of the drive shaft. In addition, a headrest driver comprising the aforementioned gearbox assembly (1) is further provided.
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Inventors:
SONG ZHONGMING (CN)
LI AIXING (CN)
LI AIXING (CN)
Application Number:
PCT/CN2017/076920
Publication Date:
December 07, 2017
Filing Date:
March 16, 2017
Export Citation:
Assignee:
GUANGDONG ZHAOQING L & V CO LTD (CN)
International Classes:
B60N2/48
Foreign References:
| CN202863201U | 2013-04-10 | |||
| CN101844527A | 2010-09-29 | |||
| CN102310789A | 2012-01-11 | |||
| CN102039835A | 2011-05-04 | |||
| CN101680523A | 2010-03-24 | |||
| CN102791518A | 2012-11-21 | |||
| DE102006049808B4 | 2012-02-02 | |||
| KR101221269B1 | 2013-01-11 | |||
| CN202863201U | 2013-04-10 |
Other References:
See also references of EP 3466752A4
Attorney, Agent or Firm:
ZHONGZI LAW OFFICE (CN)
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