Dual-shaft hinge module and portable electronic device
AssigneeCompal Electronics, Inc.
InventorsChia-Hao Hsu, You-Yu Chen, Hsin-Hung Lee
Life of this patent
Estimating the term…
Abstract
A dual-shaft hinge module including a first shaft, a first driving gear disposed on the first shaft, a second shaft, a second driving gear disposed on the second shaft, a pair of driven gears coupled between the first driving gear and the second driving gear, and multiple links is provided. The links are respectively pivoted to any two engaged gears to keep a center distance of the engaged gears fixed. A relative distance of the first shaft and the second shaft is changed along with different engagement positions of the driven gears relative to the first driving gear and the second driving gear. A portable electronic device is also provided.
Claims15
A dual-shaft hinge module, comprising:
- a first shaft;
- a first driving gear, disposed on the first shaft;
- a second shaft;
- a second driving gear, disposed on the second shaft;
- a pair of driven gears, coupled between the first driving gear and the second driving gear;
- and
- a plurality of links, respectively pivoted between the first driving gear and one of the pair of driven gears, between the pair of driven gears, and between another one of the pair of driven gears and the second driving gear, to respectively keep a center distance of the first driving gear and the one of the pair of driven gears, a center distance of the pair of driven gears, and a center distance of the another one of the pair of driven gears and the second driving gear fixed, wherein
- a relative distance of the first shaft and the second shaft is changed along with different engagement positions of the pair of driven gears relative to the first driving gear and the second driving gear, wherein
- the first driving gear and the first shaft are coaxially disposed and synchronously rotated, the second driving gear and the second shaft are coaxially disposed and synchronously rotated, and the first shaft and the second shaft are synchronously rotated through the first driving gear, the pair of driven gears, and the second driving gear.
A portable electronic device, comprising:
- a first body;
- a second body;
- a dual-shaft hinge module, comprising:
- a first shaft, assembled to the first body;
- a first driving gear, disposed on the first shaft;
- a second shaft, assembled to the second body;
- a second driving gear, disposed on the second shaft;
- a pair of driven gears, coupled between the first driving gear and the second driving gear;
- and
- a plurality of links, respectively pivoted between the first driving gear and one of the pair of driven gears, between the pair of driven gears, and between another one of the pair of driven gears and the second driving gear, to respectively keep a center distance of the first driving gear and the one of the pair of driven gears, a center distance of the pair of driven gears, and a center distance of the another one of the pair of driven gears and the second driving gear fixed, wherein
- a relative distance between the first shaft and the second shaft is changed along with different engagement positions of the pair of driven gears relative to the first driving gear and the second driving gear, and when the first body and the second body move away from each other along with the first shaft and the second shaft, an accommodation space is formed between the first body and the second body, wherein
- the first driving gear and the first shaft are coaxially disposed and synchronously rotated, the second driving gear and the second shaft are coaxially disposed and synchronously rotated, and the first shaft and the second shaft are synchronously rotated through the first driving gear, the pair of driven gears, and the second driving gear.
Dependencies are inferred from the claim text.