Head-mounted display

Patent metadata

Field	Value
Publication number	US-11119329-B2
Application number	US-201916416287-A
Country	US
Kind code	B2
Filing date	May 20, 2019
Priority date	May 20, 2019
Publication date	Sep 14, 2021
Grant date	Sep 14, 2021

Abstract

A head-mounted display includes a wearing part, a display body, a strap, a follower, and a buckle assembly. The display body is disposed on the wearing part. The strap includes a first end, a second end, and a handle portion. The wearing part is located at a front side of a wearing space surrounded by the strap. The first end and the second end are overlapped at the front side. The handle portion is located at the first end or the second end. The follower is disposed on the wearing part and coupled to the first end and the second end. The buckle assembly is disposed between the wearing part and the first end, and is adapted to lock a relative position between the wearing part and the first end in a buckled state and remove the interference between the wearing part and the first end in a released state.

First claim

What is claimed is:

1. A head-mounted display, comprising:
a wearing part;
a display body, disposed on the wearing part;
a strap, comprising a first end, a second end, and a handle portion, wherein the strap is surrounding to form a wearing space, the wearing part is located at a front side of the wearing space, the first end and the second end are overlapped at the front side, and the handle portion is located at the first end or the second end;
a follower, disposed on the wearing part and coupled to the first end and the second end, so as to drive the first end and the second end to relatively move away from or toward each other to respectively enlarge or decrease the wearing space; and
a buckle assembly, disposed between the wearing part and the first end, wherein the buckle assembly is adapted to lock a relative position between the wearing part and the first end in a buckled state, so as to refrain the first end and the second end from relatively moving away from each other, and the buckle assembly is adapted to remove interference between the wearing part and the first end in a released state,
wherein, the buckle assembly comprises a unidirectional movement mechanism, and in the buckled state, the buckle assembly limits relative movement of the wearing part and the first end along an enlarging direction while permitting relative movement of the wearing part and the first end along a tightening direction relative to the enlarging direction,
wherein, the buckle assembly further comprises a movable plate disposed on the wearing part, and a pawl is located on the movable plate, and the buckle assembly further comprises a driving lever pivotally disposed on the wearing part through a fulcrum, a driving end of the driving lever is coupled to the movable plate, a receiving end of the driving lever is located on the display body, and the driving lever is adapted to receive an external force through the receiving end, such that the driving end drives the movable plate to remove interference between the pawl and a ratchet rack.

2. The head-mounted display as claimed in claim 1 , wherein the first end has a first slot, a single side of the first slot is formed with a first gear rack, the second end has a second slot overlapped with the first slot, an opposite side of the second slot relative to the single side is formed with a second gear rack parallel to the first gear rack, the follower comprises a follower gear pivotally disposed to the wearing part, and the follower gear is disposed in the first slot and the second slot and engaged with the first gear rack and the second gear rack.

3. The head-mounted display as claimed in claim 2 , further comprising a first restoring spring disposed on the wearing part, connected to the follower gear, and configured to provide an elastic force for the follower gear to drive the first end and the second end to relatively move toward each other.

4. The head-mounted display as claimed in claim 1 , wherein the buckle assembly comprises a ratchet rack located at the first end and a pawl located at the wearing part, and the pawl and the ratchet rack are fit with each other to realize unidirectional movement.

5. The head-mounted display as claimed in claim 1 , wherein the movable plate comprises a receiving end, and the movable plate is adapted to receive an external force through the receiving end and be driven, so as to remove interference between the pawl and the ratchet rack.

6. The head-mounted display as claimed in claim 5 , wherein the buckle assembly further comprises a second restoring spring connecting the movable plate and the wearing part, and the second restoring spring is disposed to maintain the interference between the pawl and the ratchet rack in an original state of the second restoring spring.

7. The head-mounted display as claimed in claim 1 , wherein the buckle assembly further comprises a second restoring spring connecting the movable plate and the wearing part, and the second restoring spring is disposed to maintain the interference between the pawl and the ratchet rack in an original state of the second restoring spring.

8. The head-mounted display as claimed in claim 1 , wherein the buckle assembly further comprises a third restoring spring connecting the driving lever and the wearing part, and the third restoring spring is disposed to refrain the driving end from driving the movable plate in an original state of the third restoring spring.

9. The head-mounted display as claimed in claim 1 , wherein the buckle assembly comprises a ratchet rack located at the wearing part and a pawl located at the first end, and the pawl and the ratchet rack are fit with each other to realize unidirectional movement.

10. The head-mounted display as claimed in claim 9 , wherein the handle portion is located at the first end and the movable plate is disposed on the handle portion.

11. The head-mounted display as claimed in claim 10 , wherein the movable plate comprises a receiving end, and the movable plate is adapted to receive an external force through the receiving end and be driven, so as to remove interference between the pawl and the ratchet rack.

12. The head-mounted display as claimed in claim 10 , wherein the buckle assembly further comprises a fourth restoring spring connecting the movable plate and the handle portion, and the fourth restoring spring is disposed to maintain the interference between the pawl and the ratchet rack in an original state of the fourth restoring spring.

13. The head-mounted display as claimed in claim 1 , further comprising an elastic member disposed between the strap and the wearing part and configured to provide an elastic force driving the first end and the second end to relatively move toward each other.

14. The head-mounted display as claimed in claim 13 , wherein the elastic member comprises an elastic string disposed on the wearing part, and two ends of the elastic string are respectively connected to two connection portions of the strap located at two sides of the wearing part.

Assignees

• Htc Corp

Inventors

• Lin Sheng-Cherng
• Lin Jui-Hsiang

Classifications

• A42B3/04

  Parts, details or accessories of helmets · CPC title

• A42B1/22

  adjustable in size {; Form-fitting or self adjusting head coverings; Devices for reducing hat size} · CPC title

• G02B2027/0161

  characterised by the relative positioning of the constitutive elements · CPC title

• G02B27/0176 Primary

  characterised by mechanical features · CPC title

• G02B2027/0154

  with movable elements · CPC title