CN111965816B - Head-mounted display - Google Patents

Abstract

The invention discloses a head-mounted display, which comprises a wearing part, a display main body, a belt, a driven part and a buckle assembly. The display main body is arranged on the wearing part. The strap includes a first end, a second end, and a pull handle portion. The belt encircles to form a wearing space. The wearing part is positioned at the front side of the wearing space, the first end part and the second end part are mutually overlapped at the front side, and the pull handle part is positioned on the first end part or the second end part. The driven piece is arranged on the wearing part and is coupled with the first end part and the second end part. The buckle assembly is arranged between the fitting part and the first end part, is suitable for locking the relative position of the fitting part and the first end part in a buckling state, and is suitable for releasing the interference between the fitting part and the first end part in a releasing state.

Description

head mounted display

technical field

The present invention relates to a head-mounted display, and in particular, to a head-mounted display whose wearing size can be adjusted on the front side.

Background technique

Virtual Reality (VR) technology belongs to a new generation of display technology, which mainly combines computer graphics systems and various display and control devices to generate virtual three-dimensional images. The virtual three-dimensional image is mainly realized by VR glasses, and the VR glasses are usually combined with a strap to form a head-mounted display (head-mounted display), which is convenient for users to wear.

In order to make the strap of the head-mounted display fit the head size of different users, an adjustment mechanism is currently used, and the strap is loosened or tightened by the user's manual force. However, the existing adjustment mechanism is usually located at the back of the user's head. When the user is lying on the bed or sitting on the seat, the adjustment mechanism will abut against the bed surface or the headrest, making it difficult for the user to adjust with both hands Wear size. Therefore, how to improve the adjustment convenience of the head-mounted display so as to be suitable for the lying or riding state is an important development goal at present.

SUMMARY OF THE INVENTION

The invention provides a head-mounted display, which can adjust the size of the wearing space on the front side of the head-mounted display, so that the user can still adjust the wearing space without being disturbed when lying on the bed or sitting on the seat.

The head-mounted display of the present invention 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. The drawstring wraps around to form a wearing space. The wearing part is located on the front side of the wearing space, the first end part and the second end part overlap each other on the front side, and the handle part is located on the first end part or the second end part. The follower is disposed on the wearing part, and couples the first end and the second end to drive the first end and the second end to be relatively far away or close to respectively expand or shrink the wearing space. The buckle assembly is arranged between the wearing part and the first end, and the buckle assembly is suitable for locking the relative position of the wearing part and the first end in the buckled state, so as to limit the first end and the second end The parts are relatively distant and are adapted to release the interference between the wearing part and the first end in the released state.

Based on the above, in the head-mounted display of the present invention, the first end portion and the second end portion of the strap are overlapped on the front side, and the first end portion and the second end portion are driven by the handle portion and the follower. Relatively far away or close, and then expand or reduce the size of the wearing space to suit different head sizes. Because the present invention arranges the first end, the second end and the handle on the front side of the wearing space (corresponding to the forehead of the user), when the user wears the head-mounted display and lays flat on the bed or rides When on the seat, the handle can still be manipulated with one hand to adjust the size of the wearing space without being disturbed.

In addition, the buckle assembly of the present invention can be switched between a buckled state and a released state. In the buckled state, the buckle assembly is used to lock the relative position of the wearing portion and the first end portion, so that the first end portion and the second end portion cannot be relatively far apart, restricting the user to gradually reduce the wearing space. In the released state, there is no interference between the wearing portion and the first end portion, so that the first end portion and the second end portion can be relatively far away or close, allowing the user to freely adjust the size of the wearing space to improve adjustment efficiency.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

Description of drawings

1A is a schematic perspective view of a head-mounted display according to an embodiment of the present invention;

FIG. 1B is an exploded schematic view of the components of the head-mounted display of FIG. 1A;

FIG. 1C is a schematic diagram of a strap deployment of the head-mounted display of FIG. 1A;

FIG. 1D is a schematic top cross-sectional view of the clip assembly of the head-mounted display of FIG. 1A;

FIG. 1E is a schematic diagram of a buckled state of the buckle assembly of the head-mounted display of FIG. 1A ;

FIG. 1F is a schematic diagram of a release state of the buckle assembly of the head-mounted display of FIG. 1A;

FIG. 2A is a schematic view showing a reduced degree of overlap of the first end and the second end of FIG. 2A;

FIG. 2B is a schematic diagram illustrating an increase in the degree of overlap between the first end portion and the second end portion of FIG. 2A;

2C is a schematic diagram of the connection between the first return spring and the driven gear of the head-mounted display of FIG. 1A;

3A is a schematic perspective view of a head-mounted display according to another embodiment of the present invention;

3B is an exploded schematic view of the components of the head-mounted display of FIG. 3A;

FIG. 3C is a schematic diagram of a buckled state of the buckle assembly of the head-mounted display of FIG. 3A;

FIG. 3D is a schematic diagram of a release state of the buckle assembly of the head-mounted display of FIG. 3A;

4A is a schematic perspective view of a head-mounted display according to another embodiment of the present invention;

FIG. 4B is an exploded schematic diagram of the components of the head-mounted display of FIG. 4A;

FIG. 4C is a schematic diagram of a snapping state of the snapping component of the head-mounted display of FIG. 4A;

FIG. 4D is a schematic diagram of a release state of the buckle assembly of the head-mounted display of FIG. 4A;

5A is a schematic perspective view of a head-mounted display according to still another embodiment of the present invention;

FIG. 5B is an exploded schematic view of the components of the head-mounted display of FIG. 5A;

5C is a schematic perspective view of the head-mounted display of FIG. 5A expanding the wearing space;

5D is a schematic perspective view of the head-mounted display of FIG. 5C in another direction;

FIG. 6A is a schematic diagram of a buckled state of the buckle assembly of the head-mounted display of FIG. 5A;

FIG. 6B is a schematic diagram of a release state of the buckle assembly of the head-mounted display of FIG. 5A .

Symbol Description

100, 100A, 100B: Head Mounted Displays

110, 110a, 110b, 110c: wearing parts

111: Blindfolds

120, 120c: Display main body

130, 130c: Drawstring

131, 131a, 131b, 131c: first end

1311: First rack

132, 132a, 132b, 132c: second end

1321: Second rack

133, 133b, 133c: handle part

134c: Connection part

140: Follower

141, 141a, 141b, 141c: driven gears

150, 150a, 150b, 150c: Snap components

151, 151a, 151b: Ratchet rack

152, 152a, 152b: Pawls

153, 153a, 153b, 153c: movable panels

154, 154c: toggle lever

155, 155a, 155c: Second return spring

156: Third return spring

157b: Fourth return spring

160: First return spring

170c: Elastic element

171c: Bungee cord

C: Central

F, F1: external force

G: guide groove

P: fulcrum

S: interior space

AE: receiving end

DE: drive end

D1: first direction

D2: second direction

E1, E2, E3, E4, EF: Elastic force

G1: The first slot

G2: Second slot

P1: The first reel

P2: The second reel

GD: tightening direction

SD: expansion direction

WS: Wearing Space

CW: Clockwise

CCW: counterclockwise

Detailed ways

FIG. 1A is a schematic perspective view of a head-mounted display according to an embodiment of the present invention. FIG. 1B is an exploded schematic view of the components of the head mounted display of FIG. 1A . FIG. 1C is a schematic view of the strap deployment of the head-mounted display of FIG. 1A . FIG. 1D is a schematic top cross-sectional view of the clip assembly of the head-mounted display of FIG. 1A . FIG. 1E is a schematic diagram of a buckled state of the buckle assembly of the head-mounted display of FIG. 1A . FIG. 1F is a schematic diagram of a release state of the buckle assembly of the head-mounted display of FIG. 1A .

Referring to FIGS. 1A to 1C , the head-mounted display 100 of the present embodiment includes a wearing part 110 , a display body 120 , a strap 130 , a follower 140 and a buckle assembly 150 . The wearing part 110 has an inner space S and an eye mask part 111 . The material of the eyecup portion 111 is, for example, plastic. In addition, the inner surface of the eye mask portion 111 is provided with a soft pad (not shown), and the soft pad eye mask portion 111 is, for example, made of sponge or other soft materials to be suitable for contacting the user's head. The display main body 120 is disposed on the wearing part 110 and located on the front side of the eye mask part 111 , and the display main body 120 is used for outputting images to the eyes of the user.

The strap 130 includes a first end portion 131 , a second end portion 132 and a handle portion 133 . The belt 130 surrounds to form the wearing space WS. The wearing portion 110 is located on the front side of the wearing space WS, and the first end portion 131 and the second end portion 132 overlap each other on the front side, and the handle portion 133 is located on the first end portion 131 or the second end portion 132, In this embodiment, the handle portion 133 is arranged at the first end portion 131 , the first end portion 131 and the second end portion 132 overlapping each other are arranged in the inner space S of the wearing portion 110 , and the handle portion 133 starts from the second end portion 131 . One end portion 131 protrudes out of a guide groove G of the wearing portion 110 in a direction away from the wearing space WS, so that the user can adjust the strap 130 through the handle portion 133 . In other embodiments, the handle portion 133 is disposed on the second end portion 132, for example, and the arrangement direction of the handle portion 133 can be changed to facilitate adjustment by users with different dominant hands.

The follower 140 is disposed on the wearing portion 110 and is coupled to the first end portion 131 and the second end portion 132 to drive the first end portion 131 and the second end portion 132 to be relatively far away or close to respectively expand or shrink the wearing space WS.

Please refer to FIG. 1D to FIG. 1F , the buckle assembly 150 is disposed between the wearing portion 110 and the first end portion 131 , and the buckle assembly 150 is suitable for locking the wearing portion 110 and the first end in a buckled state The relative position of the part 131 (see FIG. 1D and FIG. 1E ) to limit the relative distance between the first end part 131 and the second end part 132 , and is suitable for releasing the wearing part 110 and the first end part 131 in a released state interference (see Figure 1F).

Referring to FIG. 1B and FIG. 1C , the first end portion 131 has a first slot G1 , a first rack 1311 is formed on a single side of the first slot G1 , and the second end portion 132 has a first slot G1 . A second slot G2 overlapping with G1, a second rack 1321 parallel to the first rack 1311 is formed in the second slot G2 on a pair of sides opposite to the single side, the follower 140 includes a pivot A driven gear 141 in the inner space S of the wearing portion 110, and the driven gear 141 is arranged in the first slot G1 and the second slot G1 and meshes with the first rack 1311 and the second rack 1321 .

FIG. 2A is a schematic view showing a reduced degree of overlap of the first end and the second end of FIG. 1A . FIG. 2B is a schematic diagram illustrating an increase in the degree of overlap between the first end portion and the second end portion of FIG. 1A .

Please refer to FIG. 2A , FIG. 2B and FIG. 1A , wherein the driven gear 141 is used to drive the first end portion 131 and the second end portion 132 to move relatively to change the overlapping degree of the first slot G1 and the second slot G2 . The handle portion 133 is adapted to receive the external force F and move along the guide groove G of the wearing portion 110 . The handle portion 133 drives the first end portion 131 and drives the driven gear 141 to rotate through the first rack 1311 . At the same time, the driven gear 141 drives the second end portion 132 and the first end portion 131 through the second rack 1321 to generate move towards each other. Since the driven gear 141 is engaged with the first rack 1311 and the second rack 1321, it is suitable for synchronously driving the first end 131 and the second end 132 to be relatively far away or relatively close, so that the two sides of the belt 130 can be stretched or retracted. The amount is equal to avoid the phenomenon of offset.

Please refer to FIG. 1A and FIG. 2A , when the handle portion 133 moves in the first direction D1 , the first end portion 131 drives the driven gear 141 to rotate in the counterclockwise direction CCW through the first rack 1311 , and the driven gear 141 The second end portion 132 is driven by the second rack 1321 to move in a second direction D2 opposite to the first direction D1, so as to increase the overlap between the first slot G1 and the second slot G2, thereby reducing the wearing space WS size of.

1A and 2B, when the handle portion 133 moves in the second direction D2, the first end portion 131 drives the driven gear 141 to rotate in the clockwise direction CW through the first rack 1311, and the driven gear 141 passes through the first rack 1311. The second rack 1321 drives the second end portion 132 to move toward the first direction D1, so as to reduce the overlap between the first slot G1 and the second slot G2, thereby expanding the size of the wearing space WS.

FIG. 2C is a schematic diagram of the connection between the first return spring and the driven gear of the head-mounted display of FIG. 1A .

Referring to FIG. 1A , FIG. 1B and FIG. 2C , the head mounted display 100 includes a first return spring 160 , for example, a coil spring structure. The first return spring 160 is disposed on the outer surface of the wearing portion 110 facing the display body 120 and connected to the driven gear 141 to provide an elastic force for the driven gear 141 to drive the first end portion 131 and the second end portion 132 to be relatively close to each other. Force E1. Referring to FIG. 2A and FIG. 2B , for example, when the driven gear 141 is driven by the external force F and rotates in the clockwise direction CW, the first return spring 160 is driven to deform and accumulate the elastic force E1. 131 and the second end portion 132 are away from each other. When the external force F is released, the elastic force E1 will be released to drive the driven gear 141 to rotate in the counterclockwise direction CCW, so that the first end portion 131 and the second end portion 132 will approach each other and return to the initial position.

Therefore, the first return spring 160 is suitable for automatically increasing the degree of overlap between the first slot G1 and the second slot G2 to reduce the size of the wearing space WS and shorten the adjustment time.

Referring to FIGS. 1A to 1E , the buckle assembly 150 includes a one-way movement mechanism. In the buckled state, the buckle assembly 150 restricts the relative movement of the wearing portion 110 and the first end portion 131 along an expansion direction SD, and allows the The relative movement of the wearing portion 110 and the first end portion 131 along a tightening direction GD relative to the expanding direction SD. In this embodiment, the tightening direction GD is, for example, away from the center C of the wearing portion 110 and the expanding direction SD is, for example, close to the center C of the wearing portion 110 , so the buckle assembly 150 can only be used in the buckled state. The strap 130 is gradually reduced in size of the wearing space WS. In other embodiments, the expansion direction SD and the tightening direction GD are opposite, for example, the buckle assembly 150 can only gradually expand the size of the wearing space WS in the buckled state.

Further, the buckle assembly 150 includes a ratchet rack 151 located at the first end portion 131 and a pawl 152 located at the wearing portion 110 , and the pawl 152 is connected to the ratchet rack 151 through the pawl 152 . In order to achieve the unidirectional movement of the first end portion 131 relative to the wearing portion 110 . The buckle assembly 150 further includes a movable plate 153 disposed on the wearing portion 110 , and a pawl 152 (pawl) is located on the movable plate 153 . The movable plate 153 is pivotally connected to the wearing portion 110 and is suitable for turning around to approach or move away from the first end portion 131 . For example, the movable plate 153 is pivotally connected to the wearing portion 110 through the first rotating shaft P1.

The buckle assembly 150 further includes a driving lever 154 , the driving lever 154 is pivoted on the wearing part 110 through a pivot point P (fulcrum), and a driving end DE of the driving lever 154 is coupled to the movable plate 153 , and a receiving end AE of the pulling rod 154 is located on the display main body 120, the pulling rod 154 is suitable for receiving an external force F through the receiving end AE, and the movable plate 153 is driven by the driving end DE to release the pawl 152 and the ratchet teeth Interference between bars 151. For example, the toggle lever 154 is pivotally connected to the wearing portion 110 through a second rotation axis P2 perpendicular to the first rotation axis P1.

The buckle assembly 150 further includes a second return spring 155 and a third return spring 156 . The second return spring 155 is a torsion spring and connects the movable plate 153 and the wearing part 110 . The second return spring 155 is set to keep the ratchet pawl 152 and the ratchet rack 151 interfere with each other in its original state. The third return spring 156 connects the pulling rod 154 and the wearing part 110 , and the third return spring 156 is set to keep the driving end DE from driving the movable plate 153 in its original state.

Referring to FIGS. 1D to 1F , 2A and 2B, when the buckle assembly 150 is switched to the release state, an external force F is applied to the receiving end AE and the driving end DE drives the movable plate 153 away from the first end 131 relatively, so that The pawl 152 and the ratchet rack 151 are separated from each other without interference. Therefore, the wearing portion 110 and the first end portion 131 are no longer restricted by the buckle assembly 150 . At this time, the user is suitable to drive the handle portion 133 to move along the tightening direction GD or the expanding direction SD, so that the first end portion 131 and the second end portion 132 are relatively moved in the wearing portion 110 and pass through the driven gear 141 The synchronous driving of the two ends adjusts the overlapping degree of the first end portion 131 and the second end portion 132 , thereby achieving the effect of quickly adjusting the size of the wearing space WS.

When the buckle assembly 150 is switched to the buckled state, the external force F applied to the receiving end AE only needs to be released, and the elastic forces E2 and E3 released by the second return spring 155 and the third return spring 156 are used to push the movable plate 153 respectively. And the pulling rod 154 returns to its original position (as shown in FIG. 1F ), so that the pawl 152 and the ratchet rack 151 interfere with each other. In the buckled state, the user is adapted to drive the handle portion 133 to move along the tightening direction GD, so as to increase the overlap between the first end portion 131 and the second end portion 132 , thereby gradually reducing the wearing space WS.

It must be noted here that the following embodiments use the element numbers and part of the contents of the previous embodiments, wherein the same numbers are used to represent the same or similar elements, and the description of the same technical contents is omitted. For the description of the omitted part, reference may be made to the foregoing embodiments, and repeated descriptions in the following embodiments will not be repeated.

3A is a schematic perspective view of a head-mounted display according to another embodiment of the present invention. FIG. 3B is an exploded schematic view of the components of the head mounted display of FIG. 3A .

Referring to FIGS. 3A , 3B and 1A , the difference between the head-mounted display 100A of this embodiment and the head-mounted display 100 of FIG. 1A is that the head-mounted display 100A does not have the toggle lever 154 , and the movable plate 153 a includes A receiving end AE extends upward to the outside of the wearing portion 110a. The movable plate 153a is adapted to be driven by receiving an external force F through the receiving end AE, so as to release the interference between the ratchet pawl 152a and the ratchet rack 151a (refer to FIG. 1D and FIG. 1E ). The buckle assembly 150a further includes a second return spring 155a, which connects the movable plate 153a and the wearing portion 110a. The second return spring 155a is provided to keep the pawl 152a interfering with the ratchet rack 151a in its original state.

In actual use, the user can pull the receiving end AE outward to release the latching state in which the movable plate 153a and the first end 131a interfere with each other, so as to facilitate the free scaling and adjustment of the wearing space WS. At the same time, the second return spring 155a is elastically deformed. When the user no longer moves the receiving end AE, the elastic force E2 drives the movable plate 153a to move toward the wearing portion 110a and returns to the buckled state.

FIG. 3C is a schematic diagram of a buckled state of the buckle assembly of the head-mounted display of FIG. 3A . FIG. 3D is a schematic diagram of a release state of the buckle assembly of the head-mounted display of FIG. 3A .

Please refer to FIGS. 3A to 3D together. When the buckle assembly 150a is switched to the release state (shown in FIG. 3D ), an external force F is applied to the receiving end AE to drive the movable plate 153a relatively away from the first end portion 131a, so that the pawl 152a and the ratchet rack 151a are separated from each other. There is no interference. Therefore, the wearing portion 110a and the first end portion 131a are no longer restricted by the buckle assembly 150a. At this time, the user is suitable to drive the handle portion 133a to move along the expanding direction SD or the tightening direction GD, so that the first end portion 131a and the second end portion 132a move relatively in the wearing portion 110a, and pass through the driven gear 141a. The synchronous driving of the two ends adjusts the overlapping degree of the first end portion 131a and the second end portion 132a, thereby achieving the effect of quickly adjusting the size of the wearing space WS.

When the buckle assembly 150a is switched to the buckled state, the external force F applied to the receiving end AE only needs to be released, and the elastic force E2 released by the second return spring 155a is used to push the movable plate 153a to return to its original position (as shown in FIG. 3C ). ) so that the pawl 152a and the ratchet rack 151a interfere with each other. In the buckled state, the user is adapted to drive the handle portion 133a to move in the tightening direction GD to increase the overlap between the first end portion 131a and the second end portion 132a, thereby gradually reducing the wearing space WS.

4A is a schematic perspective view of a head-mounted display according to another embodiment of the present invention. FIG. 4B is an exploded schematic view of the head mounted display of FIG. 4A .

Please refer to FIGS. 4A , 4B and 1A. The difference between the head-mounted display 100B of this embodiment and the head-mounted display 100 of FIG. 1A is that the buckle assembly 150b includes a ratchet bar 151b ( ratchet rack) and a pawl 152b (pawl) located at the first end 131b, the pawl 152b cooperates with the ratchet rack 151b to achieve a one-way movement. The handle portion 133b is located at the first end portion 131b, the buckle assembly 150b includes a movable plate 153b disposed on the handle portion 133b, and the pawl 152b is located on the movable plate 153b.

The movable plate 153b includes a receiving end AE extending upward to the outside of the wearing portion 110a. The movable plate 153b is adapted to be driven by receiving an external force F through the receiving end AE, so as to release the interference between the ratchet pawl 152b and the ratchet rack 151b (refer to FIG. 1D and FIG. 1E ). The buckle assembly 150b includes a fourth return spring 157b, which connects the movable plate 153b and the handle portion 133b. The fourth return spring 157b is provided to keep the pawl 152b interfering with the ratchet rack 151b in its original state.

In practical applications, the user can pull the receiving end AE outward to release the buckled state in which the movable plate 153b and the wearing portion 110b interfere with each other, so as to facilitate the free scaling and adjustment of the wearing space WS. At the same time, the fourth return spring 157b is elastically deformed. When the user no longer moves the receiving end AE, the elastic force E4 drives the movable plate 153b to move toward the wearing part 110b and returns to the buckled state.

FIG. 4C is a schematic diagram of a buckled state of the buckle assembly of the head-mounted display of FIG. 4A . FIG. 4D is a schematic diagram of a release state of the buckle assembly of the head-mounted display of FIG. 4A .

Please refer to FIGS. 4A to 4D together. When the buckle assembly 150b is switched to the release state (shown in FIG. 4D ), an external force F is applied to the receiving end AE to drive the movable plate 153b to move away from the first end 131b relatively, so that the pawl 152b and the ratchet rack 151b are separated from each other. There is no interference. Therefore, the wearing portion 110b and the first end portion 131b are no longer restricted by the buckle assembly 150b. At this time, the user is suitable to drive the handle portion 133b to move along the expanding direction SD or the tightening direction GD, so that the first end portion 131b and the second end portion 132b move relatively in the wearing portion 110b, and pass through the driven gear 141b. The synchronizing driving of the first end portion 131b and the second end portion 132b adjusts the overlapping degree, thereby achieving the effect of quickly adjusting the size of the wearing space WS.

When the buckle assembly 150b is switched to the buckled state, the external force F applied to the receiving end AE only needs to be released, and the elastic force E4 released by the fourth return spring 157b is used to push the movable plate 153b to return to its original position (as shown in FIG. 4C ). ) so that the pawl 152b and the ratchet rack 151b interfere with each other. In the buckled state, the user is adapted to drive the handle portion 133b to move along the tightening direction GD to increase the overlap between the first end portion 131b and the second end portion 132b, thereby gradually reducing the wearing space WS.

5A is a schematic perspective view of a head-mounted display according to yet another embodiment of the present invention. FIG. 5B is an exploded schematic view of the head mounted display of FIG. 5A . FIG. 5C is a schematic perspective view of the head-mounted display of FIG. 5A to expand the wearing space. FIG. 5D is a schematic perspective view of the head-mounted display of FIG. 5C in another direction.

Please refer to FIGS. 5A , 5B and 1A. The difference between the head-mounted display 100C of this embodiment and the head-mounted display 100 of FIG. 1A is that the head-mounted display 100C includes an elastic element 170c to replace the first reset Spring 160. The elastic element 170c is disposed between the strap 130c and the wearing portion 110c to provide an elastic force EF that drives the first end portion 131c and the second end portion 132c to be relatively close. The elastic element 170c includes an elastic cord 171c disposed on the outer wall surface of the wearing portion 110c facing the display body 120c, and two ends of the elastic cord are respectively connected to the two connecting portions 134c of the strap 130c on both sides of the wearing portion 110c.

Referring to FIG. 5A and FIG. 5C , in detail, the connecting portion 134c is the portion of the strap 130c that protrudes beyond the wearing portion 110c. When the user applies force to the handle portion 133c to drive the first end portion 131c to be relatively When the wearing portion 110c moves toward the expansion direction SD, the overlapping degree of the first end portion 131c and the second end portion 132c is reduced (refer to FIG. 2B ), resulting in an increase in the wearing space WS. At this time, the two connecting portions 134c of the strap 130c are relatively far away from the wearing portion 110c and simultaneously pull both ends of the elastic cord 171c, so that the elastic cord 170c elastically deforms and accumulates elastic force EF. When the user releases the force on the handle portion 133c, the elastic cord 171c drives the two connecting portions 134c relatively close to the wearing portion 110c through the elastic force EF, so that the first end portion 131c faces the tightening direction GD relative to the wearing portion 110c Move to automatically increase the overlapping degree of the first end portion 131c and the second end portion 132c (refer to FIG. 2A ), and automatically reduce the wearing space WS to the initial size.

The buckle assembly 150c further includes a driving lever 154c, the driving lever 154c is pivoted on the wearing portion 110c, a driving end DE of the driving lever 154c is coupled to the movable plate 153c, and the driving lever 154c is The receiving end AE is located on the display main body 120c, the lever 154c is adapted to receive the external force F through the receiving end AE, and the movable plate 153c is driven by the driving end DE. For example, the toggle lever 154c is pivotally connected to the wearing portion 110c through a second rotation axis P2 perpendicular to the first rotation axis P1. The buckle assembly 150c further includes a second return spring 155c and a third return spring 156c.

Please refer to FIG. 5C and FIG. 5D , in the head-mounted display 100C of the present embodiment, the handle portion 133c of the strap 130c and the toggle lever 154c of the buckle assembly 150c are disposed on opposite sides of the main body 120c, so that the user can The display main body 120c is supported by the left hand and the driving end DE of the toggle lever 154c is pressed, and the right hand is used to drive the handle portion 133c to adjust the size of the strap 130c.

FIG. 6A is a schematic diagram of a buckled state of the buckle assembly of the head-mounted display of FIG. 5A . FIG. 6B is a schematic diagram of a release state of the buckle assembly of the head-mounted display of FIG. 5A .

5A, 5B, 6A and 6B, when the buckle assembly 150c is switched to the release state, the external force F1 is applied to the receiving end AE and the driving end DE drives the movable plate 153c to be relatively away from the first end 131c (eg 6B) without mutual interference. Therefore, the wearing portion 110c and the first end portion 131c are no longer restricted by the buckle assembly 150c. At this time, the user is suitable to drive the handle portion 133c to move along the tightening direction GD or the expanding direction SD, so that the first end portion 131c and the second end portion 132c move relatively in the wearing portion 110c, and pass through the driven gear 141c The synchronizing driving of the first end portion 131c and the second end portion 132c adjusts the overlapping degree, thereby achieving the effect of quickly adjusting the size of the wearing space WS.

When the buckle assembly 150c is switched to the buckled state, the external force F1 applied to the receiving end AE only needs to be released, and the elastic forces E2 and E3 released by the second return spring 155c and the third return spring 156c are used to push the movable plate 153c respectively. And the lever 154c returns to its original position (as shown in FIG. 6A ). In the buckled state, the user is adapted to drive the handle portion 133c to move in the tightening direction GD to increase the overlap between the first end portion 131c and the second end portion 132c, thereby gradually reducing the wearing space WS.

To sum up, in the head-mounted display of the present invention, the first end and the second end of the strap are overlapped on the front side, and the first end and the second end are driven by the handle and the follower. The ends are relatively far away or close to each other, thereby expanding or reducing the size of the wearing space to suit different head sizes. Because the present invention arranges the first end, the second end and the handle on the front side of the wearing space (corresponding to the forehead of the user), when the user wears the head-mounted display and lays flat on the bed or rides When on the seat, the handle can still be manipulated with one hand to adjust the size of the wearing space without being disturbed.

In addition, the buckle assembly of the present invention can be switched between a buckled state and a released state. In the buckled state, the buckle assembly is used to lock the relative position of the wearing portion and the first end portion, so that the first end portion and the second end portion cannot be relatively far apart, restricting the user to gradually reduce the wearing space. In the released state, there is no interference between the wearing portion and the first end portion, so that the first end portion and the second end portion can be relatively far away or close, allowing the user to freely adjust the size of the wearing space to improve adjustment efficiency.

Although the present invention is disclosed in conjunction with the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The scope of protection of the present invention should be defined by the appended claims.

Claims (16)

1. A head-mounted display, characterized in that, comprising: wearing department; a display main body, disposed on the wearing part; The strap includes a first end portion, a second end portion and a handle portion. The strap surrounds and forms a wearing space, the wearing portion is located at the front side of the wearing space, and the first end portion and the second end portion The parts overlap each other on the front side, and the handle part is located on the first end part or the second end part; The follower is disposed on the wearing part, and is coupled to the first end and the second end to drive the first end and the second end to be relatively far away or close to respectively expand or shrink the wearing part space; and The buckle assembly is disposed between the wearing portion and the first end portion, and the buckle assembly is suitable for locking the relative position of the wearing portion and the first end portion in a buckled state to limit the first end The end portion is relatively far away from the second end portion, and is adapted to release the interference between the wearing portion and the first end portion in the released state, the buckle assembly includes a one-way movement mechanism, and in the buckled state , the buckle assembly restricts the relative movement of the wearing part and the first end in the expansion direction, and allows the wearing part and the first end to move relative to the expansion direction in the tightening direction. 2 . The head-mounted display of claim 1 , wherein the first end has a first slot, a single side of the first slot is formed with a first rack, and the second end has a The first slot overlaps with each other, and the second slot is formed with a second rack parallel to the first rack on the opposite side of the single side. The driven gear of the wearing part is arranged in the first slot and the second slot and meshes with the first rack and the second rack. 3 . The head-mounted display of claim 2 , further comprising a first return spring, disposed on the wearing portion and connected to a driven gear, for providing the driven gear to drive the first end portion and the second end portion. 4 . The elastic force that the ends are relatively close together. 4. The head-mounted display as claimed in claim 1, wherein the buckle assembly comprises a ratchet bar located at the first end portion and a ratchet pawl located at the wearing portion, the ratchet pawl is matched with the ratchet bar , to achieve unidirectional movement. 5 . The head-mounted display of claim 4 , wherein the buckle assembly further comprises a movable plate disposed on the wearing portion, and the pawl is located on the movable plate. 6 . 6 . The head-mounted display of claim 5 , wherein the movable plate comprises a receiving end, and the movable plate is adapted to be driven by receiving an external force through the receiving end, so as to release the contact between the pawl and the ratchet rack. 7 . put one's oar in. 7. The head-mounted display of claim 6, wherein the buckle assembly further comprises a second return spring connecting the movable plate and the wearing portion, the second return spring being set to remain in its original state The pawl interferes with the ratchet rack. 8 . The head-mounted display of claim 5 , wherein the buckle assembly further comprises a toggle lever, the toggle lever is pivoted on the wearing part through a pivot point, and a driving end of the toggle lever is coupled to the movable plate, and the receiving end of the toggle lever is located on the display main body, the toggle lever is suitable for receiving an external force through the receiving end, and the movable plate is driven by the driving end to release the pawl and the ratchet Interference between racks. 9. The head-mounted display of claim 8, wherein the buckle assembly further comprises a second return spring connecting the movable plate and the wearing portion, the second return spring being configured to remain in its original state The pawl interferes with the ratchet rack. 10. The head-mounted display of claim 8, wherein the buckle assembly further comprises a third return spring, connecting the toggle lever and the wearing part, the third return spring is set in its original state Keep the drive end from driving the movable plate. 11. The head-mounted display as claimed in claim 1, wherein the buckle assembly comprises a ratchet bar located at the wearing portion and a ratchet pawl located at the first end portion, the ratchet pawl is matched with the ratchet bar , to achieve unidirectional movement. 12 . The head-mounted display of claim 11 , wherein the handle portion is located at the first end portion, the buckle assembly further comprises a movable plate disposed on the handle portion, and the pawl is located on the movable plate 12 . superior. 13 . The head-mounted display of claim 12 , wherein the movable plate comprises a receiving end, and the movable plate is adapted to be driven by receiving an external force through the receiving end, so as to release the contact between the pawl and the ratchet rack. 14 . put one's oar in. 14. The head-mounted display of claim 12, wherein the snap assembly further comprises a fourth return spring, connecting the movable plate and the handle portion, the fourth return spring is set to remain in its original state The pawl interferes with the ratchet rack. 15. The head-mounted display as claimed in claim 1, further comprising an elastic element disposed between the strap and the wearing portion for providing a force for driving the first end portion and the second end portion to be relatively close to each other Elasticity. 16. The head-mounted display of claim 15, wherein the elastic element comprises an elastic cord disposed on the wearing part, and two ends of the elastic cord are respectively connected to the bundles located on both sides of the wearing part The two connecting parts of the belt.

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