Bendable display apparatus, supporting device, and dual-shaft hinge module

Patent metadata

Field	Value
Publication number	US-10590685-B2
Application number	US-201715847565-A
Country	US
Kind code	B2
Filing date	Dec 19, 2017
Priority date	Aug 7, 2017
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

A supporting device includes a dual-shaft hinge module and two buffering modules respectively arranged at two opposite sides of the dual-shaft hinge module. Each dual-shaft hinge module includes two shafts, a linking member clamped between the two shafts, and two side wing members respectively and slidably installed on the two shafts. The two buffering modules are respectively installed on the two shafts and are respectively cooperated with the two side wing members. Each buffering module includes an internal connecting member fixed on and synchronously rotatable with the corresponding shaft and an external connecting member slidably disposed on the internal connecting member and provided to be fixed on a carrying plate. Each side wing member has a limiting portion passing through the corresponding internal connecting member and the corresponding external connecting member.

First claim

What is claimed is:

1. A dual-shaft hinge module, comprising:
two shafts substantially parallel to each other and each having a spiral groove recessed on an outer surface thereof;
a transmitting member including a transmitting block and a transmitting rod that couples through and is fastened to the transmitting block, wherein the transmitting block is clamped between the two shafts, and the transmitting member has two driving portions respectively protruding from two opposite sides thereof and respectively inserted into the two spiral grooves; and
two linking members respectively arranged at two opposite sides of the transmitting block, wherein each of the two linking members is sleeved on the two shafts, and two opposite ends of the transmitting rod are respectively abutted against inner surfaces of the two linking members;
two side wing members respectively and slidably fastened to the two shafts, wherein each of the two side wing members includes two end portions slidably sleeved on the corresponding shaft and respectively abutted against outer surfaces of the two linking members, and each of the two side wing members has a limiting portion;
wherein when one of the two shafts is spun to synchronously rotate the other shaft through the transmitting member, the two shafts drive the transmitting block and the transmitting rod to synchronously move in a path there-between, so that the transmitting rod drives the two linking members and the two side wing members to move along the two shafts at the same time.

2. The dual-shaft hinge module as claimed in claim 1 , wherein the transmitting block has two concave surfaces respectively recessed on two opposite sides thereof and respectively facing the two shafts, the two driving portions respectively protrude from the two concave surfaces, and each of the two concave surfaces is arranged to accommodate a portion of the corresponding shaft.

3. The dual-shaft hinge module as claimed in claim 2 , wherein in a cross section of the dual-shaft hinge module perpendicular to each of the two shafts, each of the two concave surfaces is substantially an arc shape having a center of circle overlapped at a center of the portion of the corresponding shaft.

4. The dual-shaft hinge module as claimed in claim 1 , wherein each of the spiral grooves has a spiral angle within a range of 40-60 degrees, and a depth of each of the spiral grooves is ⅕- 1/7 of a maximum diameter of the corresponding shaft.

Assignees

• Fositek Corp

Inventors

• Hsu An-Szu

Classifications

• G06F1/1681

  Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683) · CPC title

• G06F1/1652

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• E05D3/122

  Gear hinges · CPC title

• F16C11/04

  Pivotal connections (hinges for doors, windows or wings E05D) · CPC title

• G06F1/1641

  the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence) · CPC title