Head-mounted display device

• US 10,656,670 B2
• Filed: 06/04/2018
• Issued: 05/19/2020
• Est. Priority Date: 06/04/2018
• Status: Active Grant

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Hu, Chih-Kai, Liao, Yu-Jing, Lin, I-Hsuan
• Primary Examiner(s): Nash, Brian D
• Application Number:
  US15/996,543
• Publication Number:
  US 20190369659A1
• Time in Patent Office: 715 Days
• CPC Class Codes: A45F 2200/0516 Portable handheld communication devices, e.g. mobile phone, pager, beeper, PDA, smart phone
• CPC Class Codes: A45F 2200/0525 Personal portable computing devices, e.g. laptop, tablet, netbook, game boy, navigation system, calculator
• CPC Class Codes: A45F 5/00 Holders or carriers for hand articles; Holders or carriers for use while travelling or camping
• CPC Class Codes: G02B 2027/0181 Adaptation to the pilot/driver
• CPC Class Codes: G02B 27/0176 characterised by mechanical features
• CPC Class Codes: G06F 1/1601 Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64

Abstract

A head-mounted display device including a front piece, a plurality of headbands, and an adjustment mechanism is provided. The front piece is provided with or adapted to house a display device. An end of each of the headbands is connected to the front piece. The adjustment mechanism includes a base, a turntable, and a knob. The turntable and the knob are pivoted to the base on an axis of rotation. The turntable has a plurality of satellite points. Each of the satellite points is spaced apart from the axis of rotation, and another end of each of the headbands is connected to the corresponding satellite point. By turning the knob to rotate the turntable, the headbands are wound around the periphery of the satellite points to simultaneously reduce the length of use of the headbands.

Claims

1. A head-mounted display device, comprising:

a front piece provided with or adapted to house a display device;

a plurality of headbands, wherein an end of each of the headbands is connected to the front piece; and

an adjustment mechanism, comprising;

a base;

a turntable pivoted to the base along an axis of rotation and having a plurality of satellite points, wherein each of the satellite points is spaced apart from the axis of rotation, and another end of each of the headbands has an elastic string to be connected to the corresponding satellite point; and

a knob pivoted to the base along the axis of rotation to drive the turntable to rotate relative to the base on the axis of rotation, wherein turning the knob relative to the base on the axis of rotation can rotate the turntable relative to the base on the axis of rotation such that the headbands are wound around a periphery of the satellite points.

2. The head-mounted display device of claim 1, wherein the base has a first rotation limiting portion and a first locking portion, the knob has a second rotation limiting portion and a second locking portion, when the first locking portion and the second locking portion fit each other, the second rotation limiting portion and the fist rotation limiting portion fit each other to prevent the turntable from rotating relative to the base on the axis of rotation, and when the knob is translated relative to the base on the axis of rotation such that the second locking portion is separated from the first locking portion and the second rotation limiting portion is separated from the first rotation limiting portion, turning the knob relative to the base on the axis of rotation can rotate the turntable relative to the base on the axis of rotation such that the headbands are wound around the periphery of the satellite points.

3. The head-mounted display device of claim 2, wherein the first rotation limiting portion and the second rotation limiting portion are respectively a pair of crown gears surrounding the axis of rotation that can be engaged with each other.

4. The head-mounted display device of claim 2, wherein when the second locking portion is separated from the first locking portion, the first locking portion limits a translation of the knob relative to the base on the axis of rotation.

5. The head-mounted display device of claim 1, wherein a portion of the base forms a pad.

6. The head-mounted display device of claim 1, wherein each of the satellite points is a cylinder having an annular groove to be wound by the corresponding elastic string.

7. The head-mounted display device of claim 1, wherein the turntable has a first rotation driving portion, the knob has a second rotation driving portion, and the second rotation driving portion and the first rotation driving portion fit each other to drive a translation of the turntable relative to the base on the axis of rotation.

8. The head-mounted display device of claim 1, wherein the turntable has a first translation limiting portion, the knob has a second translation limiting portion, and the second translation limiting portion and the first translation limiting portion fit each other to limit a translation of the turntable relative to the knob on the axis of rotation.

9. The head-mounted display device of claim 1, wherein the turntable has a first axial sleeve, the knob has a second axial sleeve, and the second axial sleeve is fitted with the first axial sleeve to be translated relative to the base on the axis of rotation.

10. The head-mounted display device of claim 9, wherein when the second locking portion is separated from the first locking portion, the first locking portion limits a translation of the second axial sleeve on the axis of rotation to limit a translation of the knob relative to the base on the axis of rotation.

11. The head-mounted display device of claim 9, wherein the base has a third axial sleeve, and the third axial sleeve is disposed in the first axial sleeve and the second axial sleeve to be translated relative to the base on the axis of rotation.

12. The head-mounted display device of claim 9, wherein the knob has a axial hole, a hole cover, and a fourth axial sleeve, the second locking portion is located inside the axial hole, the hole cover seals an end of the axial hole, and the fourth axial sleeve is disposed in the third axial sleeve.