Title:
ROTARY SHAFT ASSEMBLY AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/058034
Kind Code:
A1
Abstract:
Provided are a rotary shaft assembly and an electronic device. The rotary shaft assembly comprises a rotary shaft support (20) and a rotary shaft (10), and the relative rotation of a first shell (100) and a second shell (200) of the electronic device is achieved by means of the rotation between the rotary shaft support (20) and the rotary shaft (10). The rotary shaft (10) comprises a first matching area (102) and a second matching area (101), the second matching area (101) comprises a plurality of abutting and pressing areas arranged around the axis of the rotary shaft, and the rotary shaft support (20) is in interference fit with the first matching area (102). The rotary shaft assembly further comprises a swing arm (30) arranged on the rotary shaft support, the swing arm (30) abuts against and presses on the second matching area (101), and in the opening direction of the electronic device, the friction force between the swing arm (30) and the abutting and pressing areas is gradually increased. An additional damping force is provided by means of the damping force between the second matching area (101) and the swing arm (30), and the damping force between the swing arm (30) and the second matching area (101) can be gradually increased along with an opening angle of the first shell (100) and the second shell (200), such that a relatively small damping force is provided when the electronic device has just been opened, and the damping force is gradually increased along with the increase in the opening angle, such that the electronic device can remain in an open state.
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| JP2000192942 | UNIVERSAL JOINT AND PARALLEL MECHANISM MACHINE HAVING THIS UNIVERSAL JOINT |
| WO/2004/066616 | PORTABLE DEVICE WITH CAMERA |
Inventors:
LONG TENG (CN)
ZHU MINGCHAO (CN)
YANG JUN (CN)
ZHONG MEIFANG (CN)
ZHU MINGCHAO (CN)
YANG JUN (CN)
ZHONG MEIFANG (CN)
Application Number:
PCT/CN2020/118981
Publication Date:
April 01, 2021
Filing Date:
September 29, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
F16C11/04; F16C11/10
Foreign References:
| CN110805610A | 2020-02-18 | |||
| CN108757716A | 2018-11-06 | |||
| CN208919052U | 2019-05-31 | |||
| CN2908899Y | 2007-06-06 | |||
| TWM324133U | 2007-12-21 | |||
| US5632066A | 1997-05-27 | |||
| US5406678A | 1995-04-18 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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