JP2002247482A - Head mount mechanism and head mount device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a head mount mechanism that can be mounted on a head of a user with a simple operation so as to enjoy a certain level of sense of wearing regardless of the shape and the size of the head. SOLUTION: The head mount mechanism includes a front frame 2 provided with a front pad 17 that depresses a forehead of a wearing person, a band 8 provided with a rear pad 9 depressing an occiput, a expandable side frame 7 connecting the front frame 2 and the band 8, and a top plate 10 whose one end is connected to the front frame 2 and whose other end depresses the vicinity of the top head of the wearing person downward. Since the top frame 10 always depresses the vicinity of the top head of the wearing person at wearing, the length of the side frame 7 is adjusted to support a display section 1 by the depressing force before and after the head with the pads 17, 9 to complete the wearing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head mounting mechanism for detachably mounting a device such as a display device on a human head, and a device using the same.

[0002]

2. Description of the Related Art A head-mounted mechanism is used in a device such as a head-mounted display device (head-mounted display device) for detachably mounting a device on a head. FIGS. 11 and 12 show a conventional head mounted display device using a head mounting mechanism.

FIG. 11 is a perspective view showing the structure of the head mounted display device, and FIG. 12 is a side view showing the head mounted display device shown in FIG.

In FIG. 1, a head-mounted display device 150 holds a display device 100, and rotates a front frame 110 facing the forehead at the time of mounting and a left and right end of the front frame 110 horizontally within a predetermined angle range. Two side frames 101 which are freely attached and face the temporal region at the time of mounting, and a flexible band 103 whose both ends are attached to the side frame 101 so as to be adjustable in length; The left and right side frames 101 are connected via an adjustable band 106, and have a top frame 105 facing the top of the wearer when worn.

[0005] A front pad 107 for pressing the forehead of the wearer is provided inside the center of the front frame 110.
However, a rear pad 104 for pressing the back of the wearer's head is provided inside the center of the band 103.

When the wearer wears such a conventional head-mounted display device, first, the knob 102 provided on the left and right side frames 101 is moved in the direction of arrow A to adjust the length of the band 103. Accordingly, the distance between the rear pad 104 and the front pad 107 of the head mounting mechanism is adjusted to the distance a in the front-rear direction of the wearer's head (see FIG. 12). And then top frame 1
The height 108 of the top frame 105 and the side frame 101 (see FIG. 12) is adjusted by adjusting the length of the band 106 by moving the knob 108 provided at 05 in the direction B.

By the above operation, the front frame 11
0 and the rear pad 104 provided on the band 103 are pressed against the front and back of the wearer with a constant force, respectively, and the frame 105 is abutted on the top of the wearer. The display 100 connected to 110 is mounted on the head.

[0008]

However, in the above-described head mounting mechanism of the conventional configuration, it is necessary to independently adjust the front and rear direction and the vertical direction at the time of mounting. Therefore, the mounting operation has to be performed in two separate steps, and there is a problem that mounting is troublesome.

[0009] Therefore, there is also a method of using an elastic material such as rubber for the band 106 and omitting the adjustment operation in the vertical direction (b direction in FIG. 12) so that the band 106 can be attached by one operation. It is conceivable that the distance b between the side frame 101 and the top when the display 100 is set at an appropriate height varies among individuals. Of the front pad 10
4 and the rear pad 107 need to increase the holding force generated by pressing the frontal and occipital regions. For this reason, the feeling of pressure on the head increases and the wearing feeling is deteriorated.

On the other hand, the band 1
Because the elongation of 06 increases and the lifting force increases,
When the support force of the pads 104 and 107 is weak, the head-mounted display device feels like being lifted up, and it is difficult to obtain a firm wearing feeling. If you increase the forehead and occipital pressure to eliminate it,
Conversely, there is a problem that the feeling of oppression becomes stronger and the feeling of wearing is also worsened.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and has as its object to provide a head mounting mechanism for detachably mounting an apparatus on a wearer's head, which can be mounted by a simple operation. Another object of the present invention is to provide a head mounting mechanism that can provide a constant wearing feeling regardless of the shape and size of the head.

Another object of the present invention is to provide a head mounting device using the head mounting mechanism according to the present invention.

[0013]

That is, the gist of the present invention is a head mounting mechanism for mounting a predetermined device on or near the head of a wearer. A first pressing member for pressing, a second pressing member for pressing the occipital region of the wearer, connecting means for connecting the first and second pressing members so that the distance thereof can be adjusted, A third pressing member having one end connected to the second pressing member or the connecting means and pressing the vicinity of the top of the wearer at the other end. The head mounting mechanism is characterized by being connected so as to be movable in the direction.

Another aspect of the present invention resides in a head-mounted device using the head-mounted mechanism of the present invention.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the drawings. First Embodiment (Overall Configuration) FIG. 1 is a perspective view showing an overall configuration example of a head mounted display device as an example of a head mounted device to which a head mounted mechanism according to an embodiment of the present invention is applied. .

In FIG. 1, reference numeral 1 denotes a device which is detachably mounted on a head of a wearer by a head mounting mechanism according to the present embodiment. The device 1 displays an image supplied from a cable 25 described later. It is a display unit such as an LCD to be presented to the user. The display unit 1 is attached to a front frame 2 of the head mounting mechanism via a connecting member 3. In the present embodiment, the connecting member 3 is connected to the display unit 1 via the shaft 3a and to the front frame 2 via the shaft 3b.
When the release button 4 is pressed in the direction of the arrow H, the rotations a and 3b are free to rotate without a load, and when the release button 4 is released, it is locked at that position. Therefore, the wearer can easily change the position of the display unit 1 after mounting and without moving the head mounting mechanism.

A sponge-like pad 17 for pressing the forehead of the wearer is mounted on the inside of the front frame 2 via a pad mount 18. Further, friction 15 and 15 are provided on both left and right ends of the front frame 2.
Two side frames 7 that face the temporal region at the time of mounting are mounted rotatably in the horizontal direction within a predetermined angle range through the mounting (see FIG. 2). Reference numeral 8 denotes a flexible band, and a rear pad 9 for pressing the back of the wearer's head is provided at the center of the band.

On both ends of the band 8, knobs 5 slidable along grooves 7a formed in the side frame 7 are integrally attached. Release button 6 is knob 5
To removably engage with the band 8 to limit the movement of the band 8 in the direction of arrow B (in the direction in which head pressing by the head mounting mechanism is relaxed). The configuration and operation of the knob 5, the release button 6, and the groove 7a will be described later in detail.

Reference numeral 10 denotes a top frame attached to the front frame 2 via a shaft 11, and the shaft 11 is moved downward (in the direction of arrow C) by its own weight by a mechanism such as a friction member and a one-way clutch described later. Rotate with substantially no or small load on the center and move upward (arrow D
(Direction), when a force equal to or more than a certain load determined by the friction member is applied, the shaft 11 is rotated. The mounting structure of the top frame 10 will also be described later in detail.

Reference numeral 25 denotes a signal cable connecting the display unit 1 to a controller (not shown) for performing display control. In this embodiment, a signal cable passes through the inside of the top frame 10 from the rear end of the top frame 10 to the display unit. It is routed to be connected to 1.

(Structure of Frame 7) Next, FIGS.
The mounting structure of the side frame 7 and the front frame 2 will be described with reference to FIG. As shown in FIG. 2, the side frame 7 is attached to a stay 16 which is a structure integrally provided in the front frame 2 via a friction 15 so as to be rotatable in a horizontal direction within a predetermined angle range in the direction of the arrow I. Have been.

FIG. 3 is a perspective view showing the friction 15.
The friction 15 includes an inner race 15a having an attachment portion 15c and an outer race 15b, and is configured to have a constant frictional force between the inner race 15a and the outer race 15b. The inner race 15a is mounted on a stay 16 provided integrally with the front frame 2 via a mounting portion 15c, and the outer race 15b is fixed to the side frame 7 side. Therefore, the side frame 7 rotates with a certain frictional force against the top frame 2 using the friction 15 as a hinge. In FIG. 2, only the mounting structure at the left end of the front frame 2 is shown, but the side frame 7 is also mounted at the right end with the same structure.

(Attaching Structure of Band 8) Next, FIGS.
The structure for attaching the band 8 and the frame 7 will be described with reference to FIG. FIG. 4 is a perspective view showing the positional relationship between the knob 5 and the release button 6 provided at both ends of the band 8,
FIG. 5 is a horizontal sectional view illustrating a configuration in which the movement of the knob 5 is restricted by the release button 6, and FIG. 6 is a perspective view of a connection portion between the side frame 7 and the band 8 as viewed from the inside of the side frame 7.

The knob 5 has a hole 5 as shown in FIGS.
The release button 6 is fitted in the hole 5a. The release button 6 is urged in the direction of arrow J by a leaf spring 14 provided integrally with the knob 5.

FIG. 4 shows the side of the release button 6.
As shown in FIG. 6, a pair of claws 6a are provided. As shown in FIG. 6, the claw 6a has such a shape as to mesh with the serrated protrusion 7b provided on the inner surface of both sides of the groove 7a of the side frame 7, and has the serrated protrusion 7b, the claw 6a and the leaf spring 14a.
Constitute a ratchet mechanism. Therefore, the knob 5 in FIG.
The claw 6a moves freely in the direction of arrow A, which is the direction of pressing the head, and the claw 6a moves in the direction of arrow B in the opposite direction.
b. When moving in the direction of arrow B, the release button 6 is pressed, and the claw 6a is
Perform with the device removed.

(Mounting Structure of Top Frame 10) FIG. 7 is a vertical sectional view showing the mounting structure of the top frame 10. As shown in FIG. In FIG. 7, hatching of the shaft 11 and the front frame 2 is omitted to make the drawing easier to see.

In FIG. 7, the shaft 11 is rotatably mounted on supporting portions 2a, 2b provided on the front frame 2. In addition, the shaft 11 is provided with a flange 11 near the support 2a.
a between the inner wall of the flange 11a and the inner wall of the support 2a.
1 is provided with a friction member 12. The frictional force generated between the inner wall of the flange 11a and the friction member 12 applies a load mainly to the rotation of the shaft 11.

On the other hand, a one-way clutch 13 is mounted between the flange 11a of the shaft 11 and the support 2b. One end of the top frame 10 is attached to the one-way clutch 13. One-way clutch 13
Is a clutch that rotates easily in the direction of arrow C in FIG. 1, so that the top frame 10 can easily move in the direction of arrow C in FIG. While it is rotatable,
Rotation in the direction of arrow D in FIG. 1 is performed only when a load greater than the frictional force of the friction member 12 acts.

In this embodiment, the top frame 10
Is positioned by a member (not shown) such as a stopper in a state where a portion that comes into contact with the top of the top frame 10 is lowered most by its own weight or the like when not mounted. This position is lower than the minimum value of the distance b in the conventional head-mounted display device shown in FIG.

Here, it has been described that the frame 10 rotates in the C direction under its own weight or a small load. However, a spring or the like having an urging force smaller than the weight of the entire apparatus may be provided to rotate the frame 10 downward.

(Mounting Operation) When the head-mounted display device having the above configuration is mounted on the head, the front frame 2 and the two side frames 7 are first put on the head-mounted display device.
And the head is inserted into the space surrounded by the band 8. Then, the frame 10 is further pushed up from the position where the top end of the top frame 10 abuts on the top of the head while resisting the frictional force of the friction member 12, and the distance b between the top of the head and the side frame 7 is increased.
Adjust At the same time, both side frames 7 are rotated inward against the friction of the friction 15 until they slightly hit the temporal region. Then, the knob 5 is moved in the direction of arrow A so that the front and back heads are held between the front pad 17 and the rear pad 9 as shown in FIG.
Adjust the distance a, and release the knob 5 at a position where it does not fluctuate.

By the above operation, the entire head-mounted display device including the display section is supported by the frontal region, the occipital region, the top region, and the temporal region, and is fixed to the head region. And
After the head-mounted display device is fixed to the head, the release button 4 provided on the display unit 1 is pushed in the direction of arrow H (see FIG. 1) to release the lock (not shown), and the connecting member 3 is connected to the shaft 3a. The display unit 1 is moved to an optimal observation position while being freely rotated with respect to 3b. Then, when the optimal observation position is reached, the release button 4 is released and the connecting member 3 is again locked to the shafts 3a and 3b, whereby the display unit 1 is fixed at the optimal observation position.

As shown in FIGS. 1 and 8, in the head mounted display device according to the present embodiment,
A signal cable 25 connecting the display unit 1 and a controller (not shown) for performing display control is routed through the inside of the top frame 10 and out from the end on the back of the head of the top frame 10. For this reason, the weight of the cable 25 is uniformly applied in the front-rear direction, and the weight balance is better as compared with a configuration in which the cable is pulled out from the display unit 1 to the controller.
The sense of stability when the head-mounted display device is mounted can be increased, and the feeling of mounting can be improved.

As described above, the head mounting mechanism according to the present embodiment has a configuration in which the top frame 10 is urged downward by its own weight or a spring or the like, and also moves upward against the frictional force. Therefore, when the side frame 7 is moved in the vertical direction in the mounting operation, the top frame, which is conventionally required to adjust the vertical distance b, is hit against the top in order to always keep the state in contact with the top. No action is required. That is, the mounting can be performed only by the operation for adjusting the distance a in the front-rear direction by the knob 5.

[0035]

Other Embodiments In the first embodiment described above, a single top frame 10 is provided from substantially the center of the front frame 2 to the top of the head, but the top frame 10 contacts the vicinity of the top of the head. If the vertical movement can be prevented, the number, position, and length of the top frames 10 can be set arbitrarily.

For example, as shown in FIG. 9, two top frames 20 are attached to the left and right side frames 7, 7 so that the top ends of the top frames 20 are located near the top of the wearer. It is also possible.

In FIG. 9, the top frame 20 extends along the head from the left and right side frames 7 toward the top, respectively, and is provided on the side frame 7 to form the top frame 10 of the first embodiment. It is attached to the support parts 7a, 7b with a structure equivalent to the attachment structure. The frame 20 rotates in the directions indicated by the arrows E and G shown in FIG. 9 by its own weight and the like, and rotates in the directions indicated by the arrows F and K by the friction member 12 with a certain load or more.

In the initial state before mounting, the top frame 20 rotates by its own weight to a position regulated by a stopper (not shown), and the top end of the top frame 20 has the minimum distance b shown in FIG. It is located below the value.

In the mounted state, as shown in FIG. 10, the tip of the top frame 20 is in contact with the head near the vertex, and the apparatus is composed of the frontal and occipital, temporal, and vertex like the above-described embodiment. Supported by

Further, in the above-described embodiment, the case where the display unit 1 is freely movable around the axes 3a and 3b by pressing the release button 4 has been described. The configuration of the connecting member 3 for connecting to the mechanism is not limited to this, and can take any configuration.

Further, in the above-described embodiment, the head mounted display device using the head mounted mechanism according to the present invention has been described. However, the present invention is not limited to the display device but can be applied to the head mounted of any device. Needless to say, there is.

In the above-described embodiment, only the combination of the friction member and the one-way clutch has been described as the mounting structure of the top frame 10. However, the top frame 10 can be freely moved downward or with a small load. Any configuration can be used as long as the mechanism requires a predetermined load larger than the downward movement, preferably a load larger than the weight of the entire apparatus.

In the above-described embodiment, only the structure including the belt 8 and the side frame 7 has been described as a means for connecting the front pad 17 and the rear pad 9 so that the distance can be adjusted. However, the distance a can be adjusted. Any configuration can be used as long as the two pads 17 and 9 can be connected as described above. Of course, even when another configuration is used, it is preferable that the configuration can be easily adjusted in the direction in which the distance a is reduced and the movement in the extending direction is restricted.

[0044]

As described above, according to the present invention, in the head mounting mechanism for mounting the device on the head, the head can be mounted by an easy operation and the size and shape of the head can be reduced. It is possible to realize a head-mounted mechanism capable of obtaining a fixed interval regardless of individual differences.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a head mounted display device to which a head mounted mechanism according to a first embodiment of the present invention is applied.

FIG. 2 is a diagram illustrating a mounting structure of a side frame 7 in FIG.

FIG. 3 is a perspective view showing a configuration of a friction 15 in FIG.

4 is a perspective view showing a positional relationship between a knob 5 provided on a band 8 and a release button 6. FIG.

FIG. 5 is a horizontal sectional view illustrating a configuration in which movement of a knob 5 is restricted by a release button 6;

FIG. 6 is a perspective view of a connection portion between the side frame 7 and the band 8 as viewed from the inside.

FIG. 7 is a vertical cross-sectional view illustrating a mounting structure of the top frame 10.

FIG. 8 is a side view showing a state where the head mounted display device of FIG. 1 is mounted.

FIG. 9 is a perspective view illustrating a configuration of a head mounted display device using a head mounted mechanism according to another embodiment of the present invention.

FIG. 10 is a front view showing a state where the head mounted display device of FIG. 9 is mounted.

FIG. 11 is a perspective view showing a head-mounted display device using a conventional head-mounted mechanism.

FIG. 12 is a side view showing a state where the head mounted display device of FIG. 11 is mounted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display part 2 Front frame 3 Connecting member 4 Release knob 5 Knob 6 Release knob 7 Side frame 8 Band 9 Rear pad 10 Top frame 11 Shaft 12 Friction member 13 One-way clutch 14 Leaf spring 15 Friction 16 Stay 17 Front pad 18 Pad mounting stand 20 Frame 25 cable

Claims (11)

[Claims] 1. A head mounting mechanism for mounting a predetermined device on or near a head of a wearer, comprising: a first pressing member for pressing a frontal head of the wearer; A second pressing member for pressing the occiput, connecting means for connecting the first and second pressing members so that the distance thereof can be adjusted, the first pressing member, the second pressing member or the connection A third pressing member connected at one end to the means, and pressing the vicinity of the top of the wearer at the other end, the third pressing member being movable with the one end as a fulcrum in the vertical direction. A head-mounted mechanism that is connected to the head. 2. The method according to claim 1, wherein the third pressing member is connected to the one end such that a load required to move the other end upward is greater than a load necessary to move the other end downward. The head mounting mechanism according to claim 1, wherein 3. The load required to move upward is:
3. The head mounting mechanism according to claim 2, wherein the weight is greater than the combined weight of the predetermined device and the head mounting mechanism. 4. The apparatus according to claim 1, wherein a tip of said third pressing member is constantly urged downward.
The head-mounted mechanism according to any one of claims 1 to 4. 5. The head mounting mechanism according to claim 4, wherein the bias is caused by the weight of the third pressing member. 6. The urging device according to claim 4, wherein said urging is performed by urging means provided at a connection portion of said one end.
The head-mounted mechanism as described. 7. The head mounting mechanism according to claim 1, comprising a plurality of said third pressing members. 8. The connection means includes: first connection means for connecting one end of the first pressing member and one end of the second pressing member; and the other end of the first pressing member and the second connection member. And a second connecting means for connecting the other end of the pressing member, wherein the first and second connecting means are extendable and contractible. The head-mounted mechanism according to the item. 9. The apparatus according to claim 1, wherein the first and second connection means are configured such that a load required for increasing the length is greater than a load required for reducing the length. The head mounting mechanism according to claim 8, wherein 10. The apparatus according to claim 1, wherein said first and second connection means include ratchet means for allowing movement in a direction to reduce the length thereof and resisting movement in a direction to increase the length. The head mounting mechanism according to claim 8 or 9. 11. The method according to claim 1, wherein
A head-mounted device using the head-mounted mechanism described in the paragraph.