JP6874099B2 - Head mounting device - Google Patents

Description

The present invention relates to a head-mounted device that is worn and used by a user on the head.

One of the head-mounted devices that are mounted on the user's head and used is a head-mounted display (hereinafter referred to as an HMD (Head Mounted Display)). A general HMD has a built-in display device, and it is possible to present various images to the user. The user wearing the HMD can move while viewing the displayed stereoscopic image while wearing the HMD.

The HMD is held on the user's head by using a belt-shaped tightening member and a mounting member such as a frontal pressing portion and an occipital pressing portion. The mounting member is provided with an adjustment mechanism that can adjust tightening and pressing, and can be attached to and detached from the user's head by adjusting the adjustment mechanism.

In addition to holding the display unit at a position and posture in which the user can recognize the correct image, the mounting member is required to hold the display unit so that the display unit does not shift with respect to movements such as swinging of the user. .. Furthermore, it is desirable that various people with different head shapes and sizes can obtain a comfortable wearing feeling even after long-term use.

Patent Document 1 discloses that the head mounting device is provided with a counterweight in addition to the mounting member. By providing the counter weight, it is possible to adjust the position of the center of gravity of the entire head mounting device and reduce the deviation of the display portion with respect to the user's head.

Japanese Unexamined Patent Publication No. 2004-233899

As described above, Patent Document 1 discloses that the head-mounted device is provided with a counterweight. Specific configurations include a configuration in which the area of contact between a member constituting the head mounting device such as a display unit and a counterweight and the head of the user at the time of mounting is increased and a configuration in which the contact area is reduced.

If a configuration is adopted in which the area in contact with the user's head is reduced, there is a possibility that the display portion may be displaced due to an action such as swinging of the user's head. In order to prevent the display from being displaced, it is necessary to tighten the holding mechanism of the head mounting device or to use a member having a large coefficient of friction. However, in any case, there is a possibility that the wearing feeling of the user is impaired.

On the other hand, in the case of a configuration in which the area in contact with the user's head is increased, the holding force can be increased without tightening the holding mechanism or using a member having a large friction coefficient. However, since the area of contact between the counterweight, which is generally made of a hard member, and the head of the user becomes large, there is a possibility that the wearing feeling of the user may be impaired.

The present invention has been made in view of the above problems, and an object of the present invention is to prevent the user's feeling of wearing the head-mounted device from being impaired by the counterweight in contact with the user's head. To do.

In order to solve the above problems, the head-mounted device in the present invention is a head-mounted device that is worn and used on the user's head, and has a display unit that displays an image to the user. It has an exterior member, a counterweight portion for adjusting the position of the center of gravity of the head mounting device, and a belt portion, which is coupled to the display portion and the counterweight portion to reduce the length of the belt portion. By adjusting, the display unit and the counterweight unit have a holding unit that adjusts and holds the positions of the display unit and the counterweight unit with respect to the user's head, and the counterweight unit has the head on the user's head. When the unit mounting device is mounted, it is formed so as to be deformed according to the shape of the head of the user, and is coupled to the holding portion by winding the exterior member around the holding portion. To do.

According to the present invention, it is possible to prevent the user's feeling of wearing the head-mounted device from being impaired by the counterweight in contact with the user's head.

It is a figure which showed the appearance of the head-mounted display device in 1st Embodiment. It is the schematic about the structure of the counterweight in 1st Embodiment. It is the schematic about the structure of the belt part and attachment / detachment of a counter weight in 1st Embodiment. It is the schematic about the function of the counterweight in 1st Embodiment. It is the schematic about the structure of the counterweight in the 2nd Embodiment. It is a figure which showed the appearance of the head-mounted display device in 3rd Embodiment. It is a figure which showed the appearance of the head-mounted display device in 4th Embodiment. It is a figure which showed the appearance of the head-mounted display device in 5th Embodiment. It is a figure which showed the appearance of the head-mounted display device in 6th Embodiment.

(First Embodiment)
FIG. 1 is a diagram showing the appearance of a head-mounted display device (head-mounted device including a display unit) according to the first embodiment. The head-mounted display device of the present embodiment includes an image display unit 10, a frontal support unit 20, a belt unit 30 (holding unit), and a counterweight 40 (counterweight unit). As shown in FIG. 1, the head-mounted display device is used by being mounted on the user's head.

The specific functions of each are described below. Inside the image display unit 10, a display element for displaying an image and an optical system for enlarging the image of the display element and guiding the image to the user's eyes are arranged. The image display unit 10 and the belt unit 30 are respectively connected to the frontal support portion 20, and the image display portion 10 is held by touching the vicinity of the frontal region of the user H when wearing the image display unit 10. The belt portion 30 is a plate material having flexibility in the thickness direction, has rigidity in the direction of gravity G, and has flexibility in the direction of wrapping around the head. Further, the belt portion 30 has an adjusting mechanism capable of adjusting its own length. The counterweight 40 has a configuration that can be deformed into a shape along the head of the user H, and is coupled to the adjusting belt 32 that is a part of the belt portion 30. At the time of wearing, it is arranged near the back of the head of the user H. In this head-mounted display device, the position of the center of gravity is adjusted so that the moment due to the own weight of the image display unit 10 and the moment due to the own weight of the counterweight 40 are substantially balanced with the frontal support portion 20 as a fulcrum. Further, the moment is transmitted by the rigidity of the belt portion 30, and this balance is realized. As a result, the position and posture of the image display unit 10 are stabilized, and it becomes easy to hold the image display unit 10 at a position and posture so that the user H can recognize the correct image. In holding the image display unit 10, the length of the belt unit 30 is adjusted so that the image display unit 10, the belt unit 30, and the counterweight 40 are brought into close contact with the head of the user H. As a result, it is possible to obtain a frictional force for holding the position and posture of the image display unit 10 against various movements such as swinging of the user H, and the image display unit 10 can be used when the head-mounted display device is used. The position and posture are less likely to shift.

In the above description, the head-mounted device including the display unit has been described. However, it is also possible to apply the present embodiment to a head-mounted device that does not have a display and includes a main body that stimulates sensory organs of the head other than vision. For example, a head-mounted device with a built-in sound guide device that guides visually impaired users by voice, or a device that artificially generates odors to amplify the sense of reality for virtual objects. It is possible to apply.

FIG. 2 is a schematic view of the structure of the counterweight 40. FIG. 2A is an external view, and FIG. 2B is a cross-sectional view of the counterweight 40. The counterweight 40 has a bag shape by stacking two sheet-shaped and elastic cloth members 41 and sewing the sealing cloth member 42 to the edge. Then, as shown in FIG. 2B, a plurality of iron balls 43 are packed therein. Since the shape of the bag changes freely and the plurality of iron balls 43 move freely in the bag, the counterweight 40 can be deformed into a shape along the head of the user H. A detachable cloth member 44 is sewn on the counterweight 40. A snap button socket 45 is attached to the cloth member 41, and a snap button stud 46 is attached to the detachable cloth member 44 so that they can be fitted to each other. As a result, it can be wound around the adjusting belt 32 and attached. As shown in FIGS. 2A and 2B, the counterweight 40 has a rectangular shape that follows the shape of the back of the head of the user, and is further formed with a recess. With such a shape, it can be properly attached to the back of the head of the user. In the above, the configuration in which the counterweight 40 is composed of the cloth member 41 and a plurality of iron balls 43 are enclosed has been described. However, not only the cloth member but also other flexible members may be used, and not only the iron ball but also the spherical member of other metal members may be used.

FIG. 3 is a schematic view of the configuration of the belt portion 30 and the attachment / detachment function of the counterweight 40. FIG. 3A is a schematic view of the configuration of the belt portion 30. The storage portion 31 is composed of two plate materials, and a gap is provided between the two plate materials at regular intervals. In order to wrap the belt portion 30 around the head of the user H, the adjusting belt 32 is stored in the gap provided in the storage portion 31, and the length of the belt portion 30 is adjusted. The adjusting unit 33 is attached to the storage unit 31, and has a function of holding the adjusting belt 32 when the adjusting belt 32 is stored in the storage unit 31 and a function of being operated by the user to release the holding. ing. The knob 34 is attached to the storage portion 31 and the adjusting belt 32. At the time of mounting, the user pulls the knob 34 attached to the storage portion 31 and the knob 34 attached to the adjusting belt 32 to each other by hand. By this operation, the adjusting belt 32 is stored in the storage portion 31, and the belt portion 30 can be wound around the head of the user H. The pad member 35 is a flexible member and hits from the frontal region to the temporal region of the user to disperse the pressing force applied at the time of mounting. The groove 36 is for attaching and fixing the counterweight 40 to the adjusting belt 32. FIG. 3B is a schematic view when the counterweight 40 is attached to the adjusting belt 32. The counterweight 40 is positioned by fitting the socket 45 in the groove 36. FIG. 3C is a schematic view when the counterweight 40 is attached to the adjusting belt 32. By fitting the stud 46 attached to the removable cloth member 44 into the socket 45 attached to the cloth member 41, the detachable cloth member 44 can be wound and fixed around the adjusting belt 32. Further, the counterweight 40 can be attached / detached from the adjusting belt 32 by removing the stud 46 from the socket 45. This makes it possible to replace the counterweight 40 with another one when sebum or the like adheres to the counterweight 40 or when it is desired to change the weight, which leads to improvement in usability.

FIG. 4 is a schematic view when the counterweight 40 is in close contact with the back of the head of the user H. FIG. 4A is a schematic view when the counterweight 40 is in close contact with and wrapped around the back of the head of the user H. 4 (b) and 4 (c) are a view seen from the direction A and a view seen from the direction B in FIG. 4 (a), respectively. Since the shape of the counterweight 40 can be changed arbitrarily, it can warp in the X direction of FIG. 4B and the Y direction of FIG. 4C, and can follow the head shape. Further, by deforming the shape of the counterweight 40, it is possible to disperse the pressure applied when the counterweight 40 comes into close contact with the vicinity of the back of the head, and it is expected that the wearing feeling will be improved.

From the above, in the first embodiment, the image display unit 10 is easily mounted and held at an arbitrary position, and the position and posture of the image display unit 10 are less likely to deviate from the movement of the user H. Further, by deforming the shape of the counterweight 40, it is possible to follow the shape of the head and bring them into close contact with each other. Further, since the pressure applied to the head when they are in close contact with each other is easily dispersed, it is expected that the wearing feeling will be improved.

(Second Embodiment)
FIG. 5 is a diagram showing the appearance of the head-mounted display device according to the second embodiment. The counterweight 50 is applied to the same head-mounted display device as in the first embodiment, but is different from the configuration of the counterweight 40. FIG. 5A is an external view, and FIG. 5B is a cross-sectional view of the counterweight 50. The counterweight 50 is formed of a bag-shaped stretchable non-penetrating member 51. Then, the liquid 53 injected from the injection port 52 is filled inside the non-penetrating member 51. Since the non-penetrating member 51 has flexibility and the liquid 53 moves fluidly, the counterweight 50 can be deformed into a shape along the head of the user H like the counterweight 40, and can be attached. The pressure applied at times can be dispersed. Further, by adjusting the injection amount of the liquid 53, the user H can arbitrarily adjust the weight of the counterweight 50, which leads to improvement of usability. The detachable member 54 is attached to the surface of the non-penetrating member 51. Further, a snap button socket 55 is attached to the non-penetrating member 51, and a snap button stud 56 is attached to the detachable member 54, so that the snap button studs 56 are fitted to each other. With this configuration, the counterweight 50 can be attached to and removed from the adjusting belt 32 in the same manner as in FIGS. 3B and 3C. Although the structure in which the non-penetrating member 51 is filled with the liquid 53 has been described above, another liquid or gel-like substance may be used instead of the liquid 53.

From the above, in the present embodiment, as in the first embodiment, the image display unit can be easily mounted and held at an arbitrary position, and the position and posture of the image display unit are unlikely to deviate from the movement of the user H. .. Further, by deforming the shape of the counterweight 50, it is possible to follow the shape of the head and bring them into close contact with each other. Further, since the pressure applied to the head when they are in close contact with each other is easily dispersed, it is expected that the wearing feeling will be improved.

(Third Embodiment)
FIG. 6A is a diagram showing the appearance of the head-mounted display device according to the third embodiment. The counterweight portion 60 has a rear head support portion 61 that can be deformed with the same configuration as the counterweights of the first and second embodiments, and a rotation shaft 62. The counterweight portion 60 is coupled to the belt portion via a rotating shaft 62 that functions as a movable portion. The counterweight portion 60 and the belt portion are free to rotate with each other within the range regulated by the rotation shaft 62. FIG. 6B shows a user having a characteristic lower occipital region equipped with the head-mounted display device according to the third embodiment. The counterweight portion 60 rotates at an angle B1 about the rotation shaft 62. By this rotation, the counterweight portion 60 further follows the shape of the head, and the wearing feeling is improved.

(Fourth Embodiment)
FIG. 7A is a diagram showing the appearance of the head-mounted display device according to the fourth embodiment. The counterweight portion 70 has a rear head support portion 71 that can be deformed with the same configuration as the counterweights of the first and second embodiments, and a detachable portion 72. For example, the attachment / detachment portion is a combination of a snap button socket and a stud, like the counterweight of the first and second embodiments, and has a configuration in which the snap button is fastened while sandwiching a round hole in the belt. The outer wall of the round stud and the inner wall of the round hole collide with each other, and the counterweight portion 70 does not come off from the belt, but the round stud and the round hole are free to rotate with each other. Therefore, the counterweight portion 70 is free to rotate with respect to the belt within a certain regulation range. FIG. 7B shows a user having a characteristic lower occipital region equipped with the head-mounted display device according to the fourth embodiment. The counterweight portion 70 rotates at an angle B2 around the detachable portion 72. By this rotation, the counterweight portion 70 further follows the shape of the head, and the wearing feeling is improved. Based on the above, the effects of the head-mounted display device of the present embodiment will be described. The head-mounted device of the present embodiment can hold the position and posture of the main body of the head-mounted device with respect to the user's head. Since the deviation between the position and the posture of the main body caused by the movement of the user can be reduced and the pressure applied to the head of the user can be dispersed, the wearing feeling can be expected to be improved.

(Fifth Embodiment)
FIG. 8 is a diagram showing the appearance of the head-mounted display device according to the fifth embodiment. The counterweight 80 is applied to the first to fourth embodiments, but the configuration is different. The counterweight 80 has a structure in which a bag portion in which an iron ball and a liquid are sealed is divided into three in a direction perpendicular to the direction of winding around the head. FIG. 8A is a schematic view when the counterweight 80 is in close contact with the user H and is wound around, and FIG. 8B is a schematic view when the counterweight 80 is viewed from the side in contact with the human head. .. Iron balls and liquid are sealed in each bag of 81 to 83, the same amount of iron balls and liquid are sealed in 81 and 83, and the amount of iron balls and liquid in 82 is smaller than that of 81 and 83. A liquid is sealed, and the right side and the left side of the counterweight 80 have a bulging shape. As a result, when the user H wears the head-mounted display device, the divided portion of the counterweight 80 is broken, so that the followability to the head is increased, and the wearing feeling can be expected to be improved. Further, since the bag portions of 81 and 83 abut on the left and right of the lower part of the occipital bone of the user H, the holding force at the time of wearing can be expected.

(Sixth Embodiment)
FIG. 9 is a diagram showing the appearance of the head-mounted display device according to the sixth embodiment. The counterweight 90 is applied to the first to fifth embodiments, but the configuration is different. The counterweight 90 has a configuration in which a plurality of hemispherical silicon rubbers 91 are attached to the surface on the side in contact with the human head. FIG. 9A is a schematic view when the counterweight 90 is in close contact with the user H and is wound around, and FIG. 9B is a schematic view when the counterweight 90 is viewed from the side in contact with the human head. .. Since each silicon rubber 91 comes into contact with the head of the user H and functions as a non-slip, it can be expected to reduce the deviation between the position and the posture of the head-mounted display device caused by the operation of the user H.

10 Image display part 30 Belt part 40 Counterweight part

Claims (13)

A head-mounted device that is worn and used on the user's head.
A display unit that displays an image to the user,
A counterweight portion having an exterior member and adjusting the position of the center of gravity of the head mounting device,
It has a belt portion, is coupled to the display portion and the counterweight portion, and by adjusting the length of the belt portion, the position of the display portion and the counterweight portion with respect to the head of the user can be adjusted. It has a holding part for adjusting and holding,
The counterweight portion is formed so as to be deformed according to the shape of the user's head when the head mounting device is attached to the user's head, and the exterior member is held by the holding portion. A head-mounted device characterized in that it is coupled to the holding portion by being wrapped around. The head-mounted device according to claim 1, wherein the counterweight portion is detachably coupled to the holding portion. The head-mounted device according to claim 1 or 2, wherein the counterweight portion is formed of a flexible member. The head-mounted device according to any one of claims 1 to 3, wherein a plurality of spherical members are enclosed inside the counterweight portion. The head-mounted device according to any one of claims 1 to 3, wherein a liquid or gel-like substance is sealed inside the counterweight portion. The head-mounted device according to any one of claims 1 to 5, wherein the counterweight portion has a rectangular shape and a concave portion is formed. The head-mounted device according to any one of claims 1 to 6, wherein the counterweight portion has a movable portion that is movable with respect to the holding portion. It further has a detachable portion that can be attached to and detached from the holding portion.
The head mounting device according to claim 7, wherein the detachable portion is mounted on the movable portion. The head-mounted device according to any one of claims 1 to 8, wherein the counterweight portion is composed of a plurality of bag portions capable of packing members inside. The head-mounting device according to any one of claims 1 to 9, wherein the counterweight portion has a silicon rubber attached to a surface in contact with the user's head. The head according to any one of claims 1 to 10, wherein a plurality of hemispherical silicone rubbers are attached to the side of the counterweight portion that comes into contact with the head of the user. Mounting device. The exterior member has studs
The head-mounted device according to any one of claims 1 to 11, wherein the counterweight portion is coupled to the holding portion by fitting the stud into the holding portion. A head-mounted device that is worn and used on the user's head.
The main body that stimulates the sensory organs of the user's head,
A counterweight portion having an exterior member and adjusting the position of the center of gravity of the head mounting device,
It has a belt portion, is coupled to the main body portion and the counterweight portion, and adjusts the length of the belt portion so that the position of the main body portion and the counterweight portion with respect to the head of the user can be adjusted. It has a holding part for adjusting and holding,
The counterweight portion is formed so as to be deformed according to the shape of the user's head when the head mounting device is attached to the user's head, and the exterior member is held by the holding portion. A head-mounted device characterized in that it is coupled to the holding portion by being wrapped around.

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