JP6277916B2 - Head mounted display and wearing equipment - Google Patents

Description

  The present invention relates to a head mounted display for mounting an image display device on a head and a mounting tool used for the head mounted display.

  2. Description of the Related Art A head-mounted display (hereinafter referred to as “HMD”) that wears a wearing tool with an image display device on a user's head and presents an image to the user's eyes is known. A cable for electrically connecting the image display device and the external device is drawn from the image display device and wired through the wearing tool. The HMD image display device described in Patent Document 1 is attached to a headband-shaped wearing tool. The image display device is placed in front of the user's eyes when the head of the wearing tool is worn. The cable drawn from the image display device is clipped to the mounting tool. The cable is routed to the user's occipital side through the fitting. The HMD image display device described in Patent Document 2 is attached to a lens portion of a spectacle frame-shaped wearing tool. The image display device is placed in front of the user's eyes when the head of the wearing tool is worn. The cable drawn from the image display device is wired inside the wearing tool. The cable is taken out from the rear end of the temple portion to the outside of the mounting tool.

JP 2008-258784 A JP 2012-163640 A

  However, when removing the image display device from the mounting tool, in Patent Document 2, it is necessary to remove the housing cover of the mounting tool and take out the cable from the housing, which is complicated. In Patent Document 1, since the clipped cable is simply removed from the mounting tool, it is easy to remove the image display device from the mounting tool. However, since there is only one place to clip onto the mounting tool, the cable tends to create a gap between the cable and the mounting tool. For this reason, when the HMD is attached / detached or used, the cable may be disconnected from the wearing tool by being caught or caught in the head of the user's hair, ears, etc., or when the user is wearing glasses. was there.

  The present invention relates to a head-mounted display that includes a mounting tool that can removably hold a cable drawn from an image display device and can prevent the cable from being detached from the mounting tool, and a mounting tool that is used for the head-mounted display. The purpose is to provide.

According to the first aspect of the present invention, the first portion extending in the first direction and the first portion extending in the first direction and disposed on one side of the second direction orthogonal to the first direction are arranged to face the first portion. A third portion extending in the second direction and extending in the second direction, wherein both sides of the second direction are continuous with the first direction one side of the first portion and the first direction one side of the second portion, respectively. An image display device for displaying an image, an arm portion having one end connected to the attachment device and the other end connected to the image display device, and an image display device. A cable that electrically connects the image display device and an external device, and a holding part that is formed in a groove shape in at least one of the first part and the second part and that can hold the cable in the groove. And in the first direction among the parts of the wearing tool From a predetermined first position, than the first position is provided at a site to a second position of said first direction other side, e Bei a holding portion extending in the continuous or intermittent along the shape of the attachment Furthermore, the wearing tool has at least an opening portion of a portion formed between the first position and the second position among the portions of the holding portion at least perpendicular to the first direction and the second direction. And has one end in the third direction, and connects the wearing tool and the one end of the arm, and at least the other end of the arm in the third direction with respect to the one end. It further includes a connecting mechanism that can be arranged at a position on one side and a position on the other side, and the holding portion is formed at a portion between the first position and the second position, and is one side in the third direction. A first holding portion having the opening, the first position and the first It is formed at a portion between positions, a head-mounted display which comprises a second holding portion having the opening on the other side of the third direction is provided.
The head-mounted display (HMD) according to the first aspect is mounted on the user's head, for example, with the second direction facing the left-right direction and one side of the first direction being the front side. Since the cable drawn from the image display device is held by the holding part of the wearing tool from the first position to the second position on the back of the head, the gap with the wearing tool is reduced. Therefore, the cable is difficult to be caught or caught when the HMD is attached / detached or used, and is not easily detached from the wearing tool. On the other hand, when removing the image display device and the arm unit from the mounting tool, the cable can be easily detached from the mounting tool simply by pulling the cable out of the groove, and thus the operation is easy.
When the HMD is mounted on the head with one side in the third direction facing upward, the cable is held in the holding portion with the opening portion facing up. Therefore, HMD can prevent that a cable will remove | deviate from a holding part by gravity.
The HMD can invert the arm portion in the third direction. If the mounting tool is reversed and mounted in the third direction, the HMD can rearrange the image display device from one side in the second direction to the other side. In this case, if the holding unit that holds the cable is changed from the first holding unit to the second holding unit, the HMD can prevent the cable from being detached from the holding unit due to gravity.

According to the second aspect of the present invention, the first portion extending in the first direction and the first portion extending in the first direction and arranged on one side of the second direction orthogonal to the first direction are arranged to face the first portion. A third portion extending in the second direction and extending in the second direction, wherein both sides of the second direction are continuous with the first direction one side of the first portion and the first direction one side of the second portion, respectively. An image display device for displaying an image, an arm portion having one end connected to the attachment device and the other end connected to the image display device, and an image display device. A cable that electrically connects the image display device and an external device, and a holding part that is formed in a groove shape in at least one of the first part and the second part and that can hold the cable in the groove. And in the first direction among the parts of the wearing tool A holding portion that is provided in a portion from a predetermined first position to a second position on the other side in the first direction from the first position, and that continuously or intermittently extends along the shape of the wearing tool; Further, the mounting tool is configured to be configured to be attached to at least one of the pair of side wall portions of the holding portion at a portion formed between the first position and the second position of the holding portion. A second projecting portion projecting toward the other side wall portion, and the second projecting portion has a depth from the groove bottom to the depth of the retaining portion in a state where the cable is in contact with the groove bottom of the retaining portion. There is provided a head mounted display characterized in that at least a distal end portion thereof abuts on the cable at a position spaced apart in the vertical direction beyond the cross-sectional radius of the cable.
The head-mounted display (HMD) according to the second aspect is attached to the user's head, for example, with the second direction facing the left-right direction and one side of the first direction being the front side. Since the cable drawn from the image display device is held by the holding part of the wearing tool from the first position to the second position on the back of the head, the gap with the wearing tool is reduced. Therefore, the cable is difficult to be caught or caught when the HMD is attached / detached or used, and is not easily detached from the wearing tool. On the other hand, when removing the image display device and the arm unit from the mounting tool, the cable can be easily detached from the mounting tool simply by pulling the cable out of the groove, and thus the operation is easy.
The second protruding portion can hold the cable in the holding portion. Therefore, it is difficult for the cable to come off from the fitting.
The second protrusion is provided near the opening of the groove, and the cable may not contact the second protrusion when the cable is held in the holding part. In this case, every time the cable moves in the groove due to vibration or the like, the cable may come into contact with the second protruding portion, and the covering portion may be worn. Since the second protrusion of this aspect can maintain the state where the cable is in contact with the bottom of the groove, the cable can be prevented from being worn and the cable can be prevented from coming off the holding portion. it can.

In the first aspect or the second aspect , the holding part may extend from the first position to the second position located at an end part on the other side in the first direction of the wearing tool. Since the holding portion extends to the end portion on the other side in the first direction of the wearing tool, the cable held by the holding portion is unlikely to be caught or caught when the HMD is attached / detached or used, and is not easily detached from the wearing tool.

In the first aspect or the second aspect , the wearing tool has one or more first protrusions projecting from the at least one end side in the groove width direction of the holding portion toward the center in the groove width direction in the second position. One protrusion may be provided. The mounting tool can hold the cable into the holding portion with the first protruding portion at the end portion on the other side in the first direction. Therefore, it is difficult for the cable to come off from the fitting. Further, the first projecting portion can guide the portion where the cable is removed toward the lower side of the wearing tool when the HMD is attached by pressing the cable at a position where the cable is taken out from the holding portion.

In the first aspect or the second aspect , the holding part extends from the first position located on the other side in the first direction to the second position from the connection position where the arm part is coupled to the mounting tool. May be. When the first position is located on the front side of the mounting position of the arm section, the cable that travels through the arm section extends from the mounting position to the front side, then turns back and is held by the holding section from the first position. It is wired along the path toward the rear side of the tool. In this case, there is a possibility that a gap is generated between the cable and the wearing tool at the folded portion. If this gap is caught or caught in the head of the user's hair, ears, or the like, or if the user is wearing glasses, the cable may be disconnected from the wearing tool. If the first position is located on the rear side of the attachment position of the arm portion, the cable passing through the arm portion extends from the attachment position to the rear side, and is held by the holding portion from the first position as it is to the rear side of the wearing tool. It is wired with the route to go. Therefore, possibility that a cable will remove | deviate from a mounting tool can be reduced.

In the first aspect or the second aspect , the arm portion is at the connection position located on one side in the first direction from the position of the center of gravity of the head mounted display in a state where the cable is not held in the holding portion. You may connect with the said mounting tool. The holding portion may extend from the first position located on the other side in the first direction with respect to the position of the center of gravity to the second position. The weight of the image display device and the arm unit is applied to the position of the wearing tool to which the arm unit is connected. The connecting position of the arm part is on one side in the first direction with respect to the holding part, and a moment that rotates the front side downward from the position of the center of gravity acts on the HMD due to the weight of the image display device and the arm part. When the cable is held by the holding portion, the weight of the cable is applied to the portion on the other side in the first direction of the HMD with respect to the position of the center of gravity, so that the moment for rotating the other side in the first direction of the HMD downward is increased. Therefore, the moment acting on the HMD due to the weight of the image display device and the arm portion is reduced. Accordingly, the HMD can improve the weight balance and can prevent the image display device and the arm portion from falling off the forehead due to their own weight.

In the first aspect or the second aspect , the holding part may be formed in at least one of the first part and the second part. Since the holding part is formed inside the ring of the open annular mounting tool, the cable held by the holding part is not easily caught from the outside of the mounting tool and is not easily detached from the mounting tool.

In the first aspect or the second aspect , the wearing tool has a pair of connecting portions capable of connecting the arm portions to a position on one side and a position on the other side of the center position in the second direction. May be. The holding portion may be formed on each of the first portion and the second portion. When the connection destination of the arm part is changed from the connection part on the one side in the second direction of the wearing tool to the connection part on the other side, the cable can be held by the holding part close to the connection part after the change.

In the first aspect or the second aspect , the holding portion may have a groove depth greater than an outer diameter of the cable. Since the cable is not exposed from the holding unit while being held by the holding unit, the cable is not easily caught or caught when the HMD is attached or detached and is not easily detached from the wearing tool.

In the first aspect or the second aspect , at least a part of the wearing tool may be curved in a convex shape toward an outside of a region surrounded by the first part, the second part, and the third part. A portion that is not held in the holding portion of the cable may be disposed between the wearing tool and the head. When the wearing tool is at least partially curved, the gap between the wearing tool and the head can be reduced along the curved shape of the head. Therefore, the cable is difficult to be caught or caught during use in the gap between the wearing tool and the head, and is not easily detached from the wearing tool.

According to a third aspect of the present invention, there is provided a mounting device for a head mounted display, wherein the first portion extends in the first direction, and the first portion extends in the first direction and is orthogonal to the first direction. A second portion disposed opposite to the first portion; and extending in the second direction, wherein both sides of the second direction are the first direction one side of the first portion and the first direction of the second portion. A third part that is continuous with one side and a groove formed in at least one of the first part and the second part so that the cable from the image display device of the head mounted display can be held in the groove. A portion of the mounting tool provided from a predetermined first position in the first direction to a second position on the other side of the first direction with respect to the first position. Continuous or intermittent along the shape of the tool Bei example a holding portion extending further the mounting fixture has an opening portion formed between the second position and at least the first position of portions of the holding portion, at least the first And one end of an arm portion having one end in a third direction orthogonal to the direction and the second direction, and the other end connected to the image display device, and the mounting tool, and at least the first A connecting mechanism capable of disposing the other end of the arm portion in one direction and the other position with respect to the one end in three directions; and the holding portion includes the first position and the first position A first holding part having the opening on one side in the third direction, and a part between the first position and the second position. and characterized in that it comprises a second holding portion having the opening on the other side of the three-way That attachment is provided.
In the third aspect, since the cable drawn from the image display device is held by the holding part of the wearing tool from the first position to the second position on the occipital side, the gap with the wearing tool is reduced. Therefore, the cable is difficult to be caught or caught when the HMD is attached / detached or used, and is not easily detached from the wearing tool. On the other hand, when removing the image display device and the arm unit from the mounting tool, the cable can be easily detached from the mounting tool simply by pulling the cable out of the groove, and thus the operation is easy.
When the HMD is mounted on the head with one side in the third direction facing upward, the cable is held in the holding portion with the opening portion facing up. Therefore, HMD can prevent that a cable will remove | deviate from a holding part by gravity.
The HMD can invert the arm portion in the third direction. If the mounting tool is reversed and mounted in the third direction, the HMD can rearrange the image display device from one side in the second direction to the other side. In this case, if the holding unit that holds the cable is changed from the first holding unit to the second holding unit, the HMD can prevent the cable from being detached from the holding unit due to gravity.

According to a fourth aspect of the present invention, there is provided a mounting device for a head mounted display, wherein the first portion extends in the first direction, and the first portion extends in the first direction and is orthogonal to the first direction. A second portion disposed opposite to the first portion; and extending in the second direction, wherein both sides of the second direction are the first direction one side of the first portion and the first direction of the second portion. A third part that is continuous with one side and a groove formed in at least one of the first part and the second part so that the cable from the image display device of the head mounted display can be held in the groove. A portion of the mounting tool provided from a predetermined first position in the first direction to a second position on the other side of the first direction with respect to the first position. Continuous or intermittent along the shape of the tool A pair of side wall portions of the holding portion at a portion formed between at least the first position and the second position among the portions of the holding portion. A second projecting portion projecting from at least one side wall portion toward the other side wall portion, and the second projecting portion is in a state where the cable is in contact with the groove bottom portion of the holding portion, There is provided an attachment device characterized in that at least a distal end portion abuts on the cable at a position separated from a groove bottom portion in a depth direction of the holding portion by a distance larger than a cross-sectional radius of the cable.
In the fourth aspect, since the cable drawn from the image display device is held by the holding part of the wearing tool from the first position to the second position on the occipital region, the gap with the wearing tool is reduced. Therefore, the cable is difficult to be caught or caught when the HMD is attached / detached or used, and is not easily detached from the wearing tool. On the other hand, when removing the image display device and the arm unit from the mounting tool, the cable can be easily detached from the mounting tool simply by pulling the cable out of the groove, and thus the operation is easy.
The second protruding portion can hold the cable in the holding portion. Therefore, it is difficult for the cable to come off from the fitting.
The second protrusion is provided near the opening of the groove, and the cable may not contact the second protrusion when the cable is held in the holding part. In this case, every time the cable moves in the groove due to vibration or the like, the cable may come into contact with the second protruding portion, and the covering portion may be worn. Since the second protrusion of this aspect can maintain the state where the cable is in contact with the bottom of the groove, the cable can be prevented from being worn and the cable can be prevented from coming off the holding portion. it can.

It is the perspective view which looked at HMD1 from the front lower part. It is a top view of HMD1. It is a left view of HMD1. It is sectional drawing of the mounting tool 5 seen in the arrow direction in the dashed-dotted line AA of FIG. It is the perspective view which looked at the image display part 3 from the back upper right. It is the perspective view which looked at the image display unit 2 from the front upper direction. It is the perspective view which looked at the image display unit 2 from the front left lower part. It is the perspective view which looked at HMD1 which held cable 39 in holding part 69 from the back upper left.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The drawings to be referred to are used for explaining technical features that can be adopted by the present invention. The configuration of the apparatus described in the drawings is not intended to be limited to that, but merely an illustrative example.

  As shown in FIGS. 1 to 3, a head mounted display (hereinafter referred to as “HMD”) 1 is an optically transmissive HMD that can be mounted on a user's head. The light of the scenery in front of the user's eyes is guided directly to the user's eyes by passing through the half mirror 35. The projection format of HMD1 is a virtual image projection type. The half mirror 35 reflects light of an image displayed on a liquid crystal panel (not shown) toward one eye of the user. The HMD 1 can allow the user to recognize an image superimposed on the scene in front of him. The HMD 1 includes an image display unit 3, an arm unit 4, a mounting tool 5, and coupling mechanisms 8 and 9. The image display unit 3, the arm unit 4, and the coupling mechanisms 8 and 9 constitute an image display unit 2 that can be attached to and detached from the mounting tool 5. Hereinafter, in order to help understand the description of the figure, the upper side, lower side, left side, right side, front side, and rear side of the HMD 1 are defined. The upper side, the lower side, the left side, and the right side of the HMD 1 correspond to, for example, the upper side, the lower side, the right side, and the left side of FIG. The front side and the rear side of the HMD 1 correspond to, for example, the lower side and the upper side of FIG. The upper side, the lower side, the left side, the right side, the front side, and the rear side of the HMD 1 correspond to the user reference directions when the wearing tool 5 is worn by the user.

  The mounting tool 5 is made of a flexible material such as resin or metal (for example, stainless steel). The mounting tool 5 is an elongated plate-like member that is formed in a substantially annular shape and that opens on the rear side. The shape of the wearing tool 5 of this embodiment is a symmetrical shape and a vertically symmetrical shape. Hereinafter, for convenience, the configuration of the wearing tool 5 will be described in five parts. The mounting tool 5 has a middle front portion 53, a right front portion 54, a right rear portion 55, a left front portion 56 and a left rear portion 57.

  The front right portion 54 is a portion extending between the position 12 and the position 16. The position 12 is located in front of the position 16 and on the left side. The right front portion 54 is curved in a convex shape toward the outside, that is, the front side and the right side of the region 10 surrounded by the mounting tool 5. The right rear portion 55 is a portion extending between the position 16 and the position 11. The position 11 is located behind the position 16 and on the left side. The right rear portion 55 is continuous with the right front portion 54. The right rear portion 55 is curved in a convex shape toward the outside of the region 10, that is, the rear side and the right side. In other words, the right front part 54 and the right rear part 55 constitute a right part 51 when the configuration of the wearing tool 5 is divided into three parts, a middle front part 53, a right part 51 and a left part 52. The right side portion 51 is connected to the right side of the middle front portion 53 and extends toward the rear side. The right portion 51 is curved in a convex shape toward the right side.

  The left front portion 56 is a portion extending between the position 14 and the position 17. Position 17 is located to the left of position 16. The position 14 is a position to the left of the position 12 and is located on the front side and the right side of the position 17. The left front portion 56 is curved in a convex shape toward the outside of the region 10, that is, the front side and the left side. The left rear portion 57 is a portion extending between the position 17 and the position 13. The position 13 is a position to the left of the position 11 and is located on the rear side and the right side of the position 17. The left rear portion 57 is continuous with the left front portion 56. The left rear portion 57 is curved in a convex shape toward the outside of the region 10, that is, the rear side and the left side. In other words, the left front portion 56 and the left rear portion 57 constitute the left portion 52 of the wearing tool 5. The left side portion 52 is connected to the left side of the middle front portion 53 and extends toward the rear side. The left side portion 52 is curved in a convex shape toward the left side.

  The middle front portion 53 is a portion extending in the left-right direction between the position 14 and the position 12. The middle front portion 53 is continuous with each of the right front portion 54 and the left front portion 56. The middle front portion 53 is curved in a convex shape toward the outside of the region 10, that is, the front side. At the center position 21 of the mounting tool 5 in the left-right direction, a distal end portion 61 that is the foremost end of the mounting tool 5 in the front-rear direction is arranged. At the positions 11 and 13, the rearmost ends 62 and 63 of the mounting tool 5 in the front-rear direction are arranged, respectively. At the position 16, the rightmost end portion 64 of the wearing tool 5 in the left-right direction is disposed. At the position 17, the leftmost end portion 65 of the wearing tool 5 in the left-right direction is disposed.

  The wearing tool 5 holds the user's head across the user's head when worn. The curved shape of the wearing tool 5 is part by part so that the right rear portion 55 and the left rear portion 57 can respectively press the user's temporal region and obtain a sufficient pressing force to support the weight of the HMD 1. Different. The position 12 is a position that is a boundary between the curved shape of the middle front portion 53 and the curved shape of the right front portion 54. The position 14 is a position that is a boundary between the curved shape of the middle front portion 53 and the curved shape of the left front portion 56. At the position 16, the boundary between the curved shape of the right front portion 54 and the curved shape of the right rear portion 55 is located. At the position 17, the boundary between the curved shape of the left front portion 56 and the curved shape of the left rear portion 57 is located.

  The radial direction of the curvature circle in contact with the surface facing the inside of the region 10 of the wearing tool 5 in plan view is defined as the thickness direction of the wearing tool 5. The sizes in the thickness direction of the middle front portion 53, the right front portion 54, and the left front portion 56 of the mounting tool 5 are substantially the same size. The size in the thickness direction of the right rear portion 55 and the left rear portion 57 is larger than the size in the thickness direction of the middle front portion 53, the right front portion 54, and the left front portion 56, respectively. The size in the thickness direction is large. The sizes in the vertical direction of the middle front portion 53, the right front portion 54, and the left front portion 56 are substantially the same. The sizes of the right rear portion 55 and the left rear portion 57 in the vertical direction gradually increase from the front side to the rear side, and are the largest in the vicinity of the end portions 62 and 63 and gradually toward the end portions 62 and 63. Becomes smaller.

  On the right side portion 51 and the left side portion 52 of the mounting tool 5, table-like projecting portions 66 and 67 projecting into the region 10 are formed. Holding portions 68 and 69 (described later) extending in a groove shape along the circumferential direction with respect to the protruding direction are formed on the side surfaces of the table-shaped protruding portions 66 and 67 with respect to the protruding direction (that is, the thickness direction). The side surfaces of the trapezoidal protrusions 66 and 67 with respect to the thickness direction (hereinafter simply referred to as “side surfaces of the trapezoidal protrusions 66 and 67”) extend along the circumferential direction with the thickness direction as an axis. It is a surface. Each of the trapezoidal protrusions 66 and 67 extends between a predetermined first position in the front-rear direction of the mounting tool 5 and a second position on the rear side of the first position. That is, the front end portions 68 </ b> A and 69 </ b> A of the holding portions 68 and 69 are provided at the first position of the mounting tool 5. The rear end portions 68 </ b> B and 69 </ b> B of the holding portions 68 and 69 are provided at the second position of the wearing tool 5. In the present embodiment, the first position is, for example, the positions 16 and 17 of the end portions 64 and 65 on the left and right sides of the wearing tool 5. The first position is located behind the positions 15A and 15B of attachment portions 58 and 59 (described later) to which the image display unit 2 is attached. Further, the first position is located behind the center of gravity position 25 (described later) of the HMD 1. The second positions are the positions 11 and 13 of the end portions 62 and 63 on the rear side in the front-rear direction of the wearing tool 5. That is, the table-like protrusion 66 is provided in the right portion 51 from the position 16 to the position 11 and extends along the curved shape of the right portion 51. The trapezoidal protrusion 67 is provided in a portion from the position 17 to the position 13 in the left portion 52 and extends along the curved shape of the left portion 52. The trapezoidal protrusions 66 and 67 are provided in such a manner that the inner surfaces 70 and 71 facing the inside of the region 10 of the right rear portion 55 and the left rear portion 57 are stepped out in the thickness direction toward the region 10. . Therefore, the inner surfaces 70 and 71 each have a curved surface shape that follows the curved shapes of the right rear portion 55 and the left rear portion 57. Accordingly, the vertical size of the base protrusions 66 and 67 is also gradually increased from the front side to the rear side, is largest in the vicinity of the end portions 62 and 63, and gradually decreases toward the end portions 62 and 63. Become.

  The holding parts 68 and 69 are, for example, grooves formed in the mounting tool 5. The groove has a groove bottom portion extending along the curved shape of the wearing tool 5 and a pair of side wall portions extending from both ends in the width direction of the groove bottom portion and facing each other. In the present embodiment, the holding portions 68 and 69 are formed on the trapezoidal protrusions 66 and 67, respectively. The holding portions 68 and 69 are provided on the side surfaces of the table-like projecting portions 66 and 67, respectively. That is, the holding portions 68 and 69 open on the side surfaces of the table-like projecting portions 66 and 67, respectively. The groove width direction of the holding portions 68 and 69 coincides with the thickness direction of the wearing tool 5. The holding portions 68 and 69 are provided so as to make a round around the base-like projecting portions 66 and 67, respectively.

  The holding part 68 includes a first holding part 681, a second holding part 682, a third holding part 683, a fourth holding part 684, a first protruding part 685 and a second protruding part 686. Similarly, the holding portion 69 includes a first holding portion 691, a second holding portion 692, a third holding portion 693, a fourth holding portion 694, a first protruding portion 695, and a second protruding portion 696. The first holding portions 681 and 691 (see FIG. 2) are portions that open on the upper side surfaces of the base-like projecting portions 66 and 67 among the portions of the holding portions 68 and 69, respectively. The first holding portions 681 and 691 extend from the end portions 64 and 65 to the end portions 62 and 63 while being curved in accordance with the curved shapes of the right side portion 51 and the left side portion 52. The 2nd holding | maintenance part 682,692 (refer FIG. 1) is a part opened in the side surface below the stand-like protrusion parts 66 and 67 among the parts of the holding | maintenance parts 68 and 69, respectively. Similarly, the second holding portions 682 and 692 extend from the end portions 64 and 65 to the end portions 62 and 63 while being curved according to the curved shapes of the right side portion 51 and the left side portion 52, respectively. The third holding portions 683 and 693 are portions opened on the front side surfaces of the trapezoidal protruding portions 66 and 67 among the portions of the holding portions 68 and 69, respectively. The third holding portion 683 connects the first holding portion 681 and the second holding portion 682 at the position 16 of the right end portion 64. The third holding portion 693 also opens at a part of the upper and lower side surfaces of the table-like projecting portions 66 and 67 at the position 17 of the left end portion 65, and the first holding portion 691 and the second holding portion. 692 is connected. 4th holding | maintenance part 684,694 (refer FIG. 2) is a part opened in the side surface on the back side of the stand-like protrusion parts 66 and 67 among the parts of the holding | maintenance parts 68 and 69, respectively. The fourth holding part 684 connects the first holding part 681 and the second holding part 682 at the position 11 of the rear end part 62. The fourth holding portion 694 also opens at a part of the upper and lower side surfaces of each of the table-like protrusions 66 and 67 at the position 13 of the rear end portion 63, and the first holding portion 691 and the second holding portion 694. The unit 692 is connected.

  The first protrusions 685 and 695 are provided at the end portions 62 and 63 on the rear side of the mounting tool 5, respectively. The first projecting portions 685 and 695 are provided on the side wall portions inside the region 10 among the pair of side wall portions of the fourth holding portions 684 and 694, respectively. Alternatively, the first protrusions 685 and 695 are provided on the inner side of the region 10 among the parts near the opening of the fourth holding parts 684 and 694, respectively, on the side surfaces of the trapezoidal protrusions 66 and 67. . A region surrounded by the boundary between the side surfaces of the base-like projecting portions 66 and 67 and the surfaces of the pair of side wall portions of the holding portions 68 and 69 is defined as an opening of the groove (that is, the holding portions 68 and 69). In other words, the opening refers to a region where the holding portions 68 and 69 are formed on the side surfaces of the trapezoidal protruding portions 66 and 67, that is, a side region which is considered to exist when the holding portions 68 and 69 are not provided. Shall.

  The first projecting portions 685 and 695 project in the groove width direction toward the center of the fourth holding portions 684 and 694 in the groove width direction, respectively. The length by which the first protrusions 685 and 695 protrude is not more than half the length of the fourth holding parts 684 and 694 in the groove width direction, respectively. The gap between the end portion of the fourth holding portion 684 694 opposite to the inner end portion of the region 10 and the protruding tip end portions of the first protruding portions 685, 695 is smaller than the outer diameter of the cable 39. The first protrusions 685 and 695 hold the cable 39 disposed in the fourth holding portions 684 and 694 and hold the cable 39 in the groove.

  A plurality of second protrusions 686 are provided in each of the first holding part 681 and the second holding part 682. A plurality of second protrusions 696 are provided in each of the first holding part 691 and the second holding part 692. As shown in FIGS. 2 and 4, the second protruding portion 696 of the first holding portion 691 is a side of the pair of side wall portions 691A and 691B of the first holding portion 691 that is located inside the region 10 in the groove width direction. (That is, a plurality of side walls 691A). In the present embodiment, five second protrusions 696 are provided in the first holding part 691. The five second protruding portions 696 are provided on the side wall portion 691A at substantially equal intervals along the curved shape of the first holding portion 691. The second projecting portions 696 project in the groove width direction toward the side wall portions 691B. The size P by which the second protruding portion 696 protrudes into the first holding portion 691 is, for example, 0.3 mm. The second protrusion 696 extends in the depth direction (vertical direction) of the first holding part 691 along the side wall part 691B from the groove bottom part 691C of the first holding part 691 toward the opening part 697 of the first holding part 691. ). The groove width W of the holding portions 68 and 69 is, for example, 3.2 mm. The outer diameter D of the cable 39 is, for example, 3.2 mm. That is, the size of the gap between the tip 696 A of the second protrusion 696 and the side wall 691 B is smaller than the outer diameter D of the cable 39. Therefore, when the cable 39 is disposed in the first holding portion 691, the cable 39 is pressed against the side wall portion 691 </ b> B by the second protruding portion 696, and is thus held in the first holding portion 691. In addition, each of the configurations of the second protruding portion 696 of the second holding portion 692, the second protruding portion 686 of the first holding portion 681, and the second protruding portion 686 of the second holding portion 682 is the first holding portion described above. The configuration of the second projecting portion 696 of 691 is substantially the same, and the description is omitted.

  As shown in FIGS. 1 to 3, a cable 39 (see FIG. 2) that electrically connects the image display unit 3 and an external device (not shown) is drawn from the image display unit 3. The cable 39 is wired along the arm portion 4 and the mounting tool 5. The holding portions 68 and 69 hold the portion of the cable 39 wired in the mounting tool 5 in the groove. The vertical size (that is, the depth) of the holding portions 68 and 69 is larger than the outer diameter of the cable 39. A depth H (see FIG. 4) of the holding portions 68 and 69 is, for example, 3.3 mm. Therefore, the cable 39 held in the holding portions 68 and 69 is not exposed to the outside of the groove from the openings of the holding portions 68 and 69. The cable 39 drawn from the image display unit 3 passes through the arm unit 4 and is inserted into the holding unit 69 on the side close to the arm unit 4 (for example, the left side). In the present embodiment, the cable 39 is held in the first holding portion 691 of the holding portion 69. The cable 39 is inserted into the first holding portion 691 from the front end 69A of the holding portion 69 and wired through the groove. The cable 39 is guided to the first holding portion 691 toward the rear end portion 69B of the holding portion 69. The cable 39 is pulled out of the mounting tool 5 from the end 69B.

  The wearing tool 5 includes pads 75 to 77 that come into contact with the user's head when worn. The pads 75 to 77 are made of an elastic resin such as a silicon resin. The pad 75 is provided on the inner surface 72 facing the inside of the region 10 in the middle front portion 53 and including the position 21 at the center in the left-right direction of the wearing tool 5. The pad 75 extends in the left-right direction along the curved shape of the middle front portion 53 and protrudes in a direction away from the inner surface 72 (for example, rearward in FIG. 2) along the thickness direction. The size of the pad 75 in the vertical direction is substantially the same as or smaller than the size of the mounting tool 5 in the middle front portion 53 in the vertical direction. When the HMD 1 is mounted, the pad 75 contacts the forehead or frontal portion of the user and positions the mounting tool 5 on the head.

  The pads 76 and 77 are provided on the inner surface 70 of the right rear portion 55 and the inner surface 71 of the left rear portion 57, respectively. The pad 76 extends along the curved shape of the right rear portion 55 and protrudes in the thickness direction toward the region 10. The length in which the pad 76 extends in the direction along the curved direction of the right rear portion 55 is shorter than the length of the right rear portion 55. The vertical size of the pad 76 is substantially the same as or smaller than the vertical size of the right rear portion 55. The vertical size of the pad 76 is larger than the vertical size of the middle front portion 53, the right front portion 54, and the left front portion 56. In the present embodiment, the pad 76 is provided on the inner surface 70 at a portion from the approximate center in the direction along the curved shape of the right rear portion 55 to the end portion 62. The pad 77 extends along the curved shape of the left rear portion 57 and protrudes in the thickness direction toward the region 10. The length in which the pad 77 extends in the direction along the curved direction of the left rear portion 57 is shorter than the length of the left rear portion 57. The vertical size of the pad 77 is substantially the same as or smaller than the vertical size of the left rear portion 57. Further, the size of the pad 77 in the vertical direction is larger than the size in the vertical direction of the middle front portion 53, the right front portion 54 and the left front portion 56. In the present embodiment, the pad 77 is provided on the inner surface 71 at a portion from the substantially center to the end portion 63 in the direction along the curved shape of the left rear portion 57.

  As described above, the mounting tool 5 has flexibility. When the HMD 1 is mounted, the mounting tool 5 is separated by being pushed and spread by the user's hand with the end 62 and the end 63 facing the outside of the region 10 (for example, in the left-right direction). When the wearing tool 5 is fitted to the user's head, the pad 75 contacts the user's forehead or forehead, thereby positioning the wearing tool 5 in the front-rear direction on the head. When the expanded state of the end portions 62 and 63 is released, the right rear portion 55 and the left rear portion 57 of the mounting tool 5 are urged toward the inside of the region 10. The pads 76 and 77 are in contact with the right and left heads of the user, respectively. The inner surface 70 of the right rear portion 55 presses the right side of the user through the pad 76. Similarly, the inner surface 71 of the left rear portion 57 presses the left side of the user via the pad 77. The right rear portion 55 and the left rear portion 57 of the wearing tool 5 respectively press the user's temporal head and obtain a pressing force sufficient to support the weight of the HMD 1, Hold between. As described above, the inner surfaces 70 and 71 that are formed large in the vertical direction have a larger area in contact with the user's temporal region than the inner surface 72 of the middle front portion 53. Therefore, when the mounting tool 5 is mounted on the user's head, the pads 76 and 77 obtain a larger frictional force with the head by increasing the contact area with the head. By ensuring the friction area, the wearing tool 5 can suppress the occurrence of positional deviation in the head. The pads 76 and 77 have a larger area in contact with the user's temporal region than the pad 75. Therefore, the right rear portion 55 and the left rear portion 57 can disperse the pressing force that presses the temporal region through the pads 76 and 77, respectively. That is, the HMD 1 can reduce the pressure per unit area that the user receives on the rear side head. Therefore, the user is less likely to feel pressure on the temporal region.

  Attachment portions 58 and 59 are provided at portions between the front end portion 61 on the front side in the front-rear direction and the end portions 64 and 65 on both sides in the left-right direction, respectively. The position 15 </ b> A where the attachment portion 58 is provided is a position on the right side of the position 21 and on the front side of the position 22. As described above, the position 22 is located at the center of the wearing tool 5 in the front-rear direction. The position 15 </ b> B where the attachment portion 59 is provided is a position on the left side of the position 21 and on the front side of the position 22. The attachment portions 58 and 59 are positioned in front of the front end portions 68A and 69A of the holding portions 68 and 69. The attachment tool 5 can attach the connection mechanism 8 that connects the attachment tool 5 and the arm part 4 to the attachment parts 58 and 59. In the present embodiment, the coupling mechanism 8 is attached to the attachment portion 59. The connection mechanism 8 will be described later.

  Two holes 58 </ b> A that penetrate the mounting tool 5 in the thickness direction are formed in the attachment portion 58. (See FIG. 1) Similarly, the attachment portion 59 is also formed with two holes (not shown) penetrating the mounting tool 5 in the thickness direction. A screw is inserted through the hole 58A. The connection mechanism 8 is attached to the attachment portions 58 and 59 by screws. That is, the image display unit 2 including the image display unit 3, the arm unit 4, and the coupling mechanisms 8 and 9 can be attached by selecting one of the attachment unit 58 and the attachment unit 59. When the image display unit 2 is attached to the attachment portion 58, the image display portion 3 is disposed on the right side of the wearing tool 5. The image display unit 3 can cause image light to enter the right eye of the user. When the image display unit 2 is attached to the attachment portion 59, the image display portion 3 is disposed on the left side of the wearing tool 5. The image display unit 3 can cause image light to enter the left eye of the user.

  As shown in FIG. 5, the image display unit 3 includes a half mirror 35, a lens unit 36, and an image unit 37 in a housing 31. The casing 31 has a substantially rectangular parallelepiped shape with curved corners. The housing 31 extends long in a predetermined direction. The housing 31 has a hollow box shape. The tip 31A, which is one end in the direction in which the casing 31 extends, is opened. In addition, a protruding portion 32 that protrudes rearward is formed on the base end portion 31 </ b> B that is the other end portion of the housing 31. A hole (not shown) penetrating in the front-rear direction is formed at the rear end of the protrusion 32. In the base end portion 31 </ b> B, a fixing portion 94 of the coupling mechanism 9 is connected to a position on the rear surface of the housing 31 on the right side of the protruding portion 32. The connection mechanism 9 will be described later.

  As shown in FIG. 5, an image unit 37 is provided in the housing 31 at the base end portion 31B of the housing 31 at the base end portion 31B. The image unit 37 includes a known liquid crystal panel (not shown) and a control board (not shown). The liquid crystal panel generates image light by displaying an image on the left side. The control board is disposed on the right side of the liquid crystal panel. A cable 39 is connected to the control board. The cable 39 passes through the protrusion 32 and is drawn out of the image display unit 3 from the hole at the rear end of the protrusion 32. The control board receives image data transmitted from the external device via the cable 39. The control board outputs a control signal to the liquid crystal panel and displays an image corresponding to the image data on the liquid crystal panel. Instead of the liquid crystal panel, a two-dimensional display device such as a digital mirror device (DMD) or an organic EL may be used. Further, instead of the liquid crystal panel, a retinal scanning type projection device (Retinal Scanning Display) that projects two-dimensionally scanned light onto the retina of the user may be used.

  In the housing 31, a lens unit 36 is provided on the right side of the image unit 37. The lens unit 36 allows the image light emitted from the image unit 37 to pass therethrough and guides it to the distal end portion 31A side. The lens unit 36 includes a plurality of lenses (not shown). The lens unit 36 is held by the housing 31 so as to be movable in the left-right direction. An operation member 38 having a truncated cone shape and having a plurality of irregularities on the side surface is provided on the front surface of the housing 31. The operation member 38 is engaged with the lens unit 36 by a groove cam (not shown). When the operation member 38 is rotated, the lens unit 36 moves toward the distal end portion 31A side or the proximal end portion 31B side. As the lens unit 36 moves in the left-right direction, the focal length of the image light emitted from the image unit 37 changes. Therefore, the user can adjust the focus by rotating the operation member 38.

  A half mirror 35 is provided at the tip 31A. The half mirror 35 has a rectangular plate shape. The half mirror 35 can reflect a part (for example, 50%) of the light incident on the reflecting surface and transmit the other part. The reflective surface of the half mirror 35 is formed, for example, by vapor-depositing a metal such as aluminum or silver on a transparent resin or glass substrate so as to have a predetermined reflectance (for example, 50%). When the HMD 1 is mounted, the base end portion 31B of the housing 31 is disposed on the left side of the tip end portion 31A. That is, the image display unit 3 is used in a state of being arranged extending in the left-right direction. The half mirror 35 is disposed in front of the user's left eye, for example. Half mirror 35 is fixed to tip part 31A in the state where the reflective surface turned to the left side and the back side. The image light emitted from the image unit 37 in the housing 31 is condensed when passing through the lens unit 36. The condensed image light is incident on the half mirror 35. The half mirror 35 reflects the image light to the rear side and makes it incident on the left eye of the user. The user can visually recognize a virtual image based on the image light reflected by the half mirror 35. Further, the half mirror 35 can transmit external light incident from the front side to the rear side.

  As shown in FIGS. 1 to 3, 6, and 7, the arm portion 4 is made of resin, metal, or the like, and extends in a rod shape. The upper end portion 4 </ b> A of the arm portion 4 is connected to the mounting tool 5 by the connecting mechanism 8. The lower end 4 </ b> B of the arm unit 4 is connected to the image display unit 3 by the connecting mechanism 9. The arm unit 4 holds the image display unit 3 at a position separated from the mounting tool 5. As shown in FIG. 1, when the HMD 1 is mounted, the lower end 4B of the arm unit 4 is disposed on the lower side and the left side of the upper end 4A. The arm portion 4 is curved in a convex shape toward the outside of the region 10. In the present embodiment, the arm portion 4 is curved in a convex shape toward the left when the HMD 1 is mounted.

  As shown in FIGS. 6 and 7, the arm portion 4 includes a connection portion 41 at the upper end portion 4A. The connection portion 41 is a portion where the arm portion 4 is connected to the coupling mechanism 8. The connection portion 41 protrudes along the predetermined direction B (see FIG. 6) at the upper end portion 4A. The direction B is a direction in which the arm part 4 is inclined with respect to a direction C extending from the upper end part 4A toward the lower end part 4B. The connecting portion 41 is formed with a hole (not shown) extending along the direction B. A rod body of a ball stud 81 (described later) of the coupling mechanism 8 is inserted into the hole. That is, the rod body of the ball stud 81 extends along the direction B. The arm portion 4 is connected to the coupling mechanism 8 by fixing the rod body to the connection portion 41.

  The coupling mechanism 8 has two or more rotational degrees of freedom. The connection mechanism 8 of this embodiment is a known ball joint type movable part. The coupling mechanism 8 includes a ball stud 81, a socket housing portion 82, a fixing nut 83, and a holding portion 84. The ball stud 81 is a component in which a rod is connected to a sphere. The socket accommodating portion 82 has a cylindrical shape, and accommodates a socket (not shown) that makes spherical contact with the sphere of the ball stud 81. The fixing nut 83 is a lid that can be externally fitted to the opening of the socket housing portion 82 and fastened. The fixing nut 83 is formed with an insertion hole (not shown) through which the rod body of the ball stud 81 is inserted. The ball stud 81 has a movable range in which the rod body can move within the insertion hole with a sphere in contact with the socket as a fulcrum. As shown in FIG. 6, when the shaft of the rod is located at the center of the insertion hole, the ball stud 81 is located at the center of the movable range. At this time, the extending direction of the rod body of the ball stud 81, that is, the extending direction B of the connecting portion 41 coincides with a direction A (see FIG. 1) described later. That is, the movable range of the ball stud 81 is, for example, a predetermined solid angle (that is, within the range of the conical surface) with the direction A as the central axis. When the fixing nut 83 is fastened to the socket housing portion 82, the ball stud 81 is positioned with respect to the socket housing portion 82 by pressing the spherical body against the socket.

  The holding portion 84 is provided at the end of the socket housing portion 82 opposite to the side on which the fixing nut 83 is fitted. The holding portion 84 is a component that attaches the coupling mechanism 8 to the attachment portions 58 and 59 of the mounting tool 5. The holding portion 84 includes an upper wall 85, an inner wall 86, and an outer wall 87. The upper wall 85 is a portion that abuts on an upper surface of the mounting portion 58, 59 that faces upward when the HMD 1 is mounted on the head, of the side surface of the mounting tool 5. The inner side wall 86 is a part that contacts the inner surface facing the inside of the region 10 among the side surfaces of the mounting tool 5 in the attachment portions 58 and 59. The outer side wall 87 is a part that contacts the outer surface on the opposite side to the inner surface facing the inside of the region 10 among the side surfaces of the mounting tool 5 in the attachment portions 58 and 59. Two holes 87A (see FIG. 7) are formed in the outer side wall 87. When the holding portion 84 is attached to the attachment portions 58 and 59, the holding portion 84 is attached from the upper side of the attachment portions 58 and 59 so that the attachment portions 58 and 59 are sandwiched between the inner wall 86 and the outer wall 87. , 59. The attachment portions 58 and 59 are fixed to the attachment portions 58 and 59 by fastening a hole (not shown) with a screw inserted through the hole portion 58A and the hole portion 87A.

  The arm part 4 includes a connection part 42 at the lower end part 4B. The connecting portion 42 is a portion where the arm portion 4 is connected to the coupling mechanism 9. The connection part 42 protrudes along the left-right direction in the lower end part 4B. The connecting portion 42 is also formed with a hole (not shown). A rod body of a ball stud 91 (described later) of the coupling mechanism 9 is inserted into the hole. That is, the rod body of the ball stud 91 extends along the direction B. The arm portion 4 is connected to the coupling mechanism 9 by fixing the rod body to the connection portion 42.

  The connection mechanism 9 has two or more rotational degrees of freedom. As shown in FIG. 5 and FIG. 6, the connection mechanism 9 of the present embodiment is a known ball joint type movable part, similarly to the connection mechanism 8. The connection mechanism 9 includes a ball stud 91, a socket housing portion 92, a fixing nut 93, and a fixing portion 94. The configurations of the ball stud 91, the socket accommodating portion 92, and the fixing nut 93 are the same as those of the coupling mechanism 8. When the shaft of the ball stud 91 is positioned at the center of the insertion hole (not shown) of the fixing nut 93, the ball stud 91 is positioned at the center of the movable range. At this time, the extending direction of the rod body of the ball stud 91, that is, the extending direction B of the connecting portion 42 coincides with the direction A (described later). That is, the movable range of the ball stud 91 is, for example, a predetermined solid angle (that is, within the range of the conical surface) with the direction A as the central axis.

  The fixing portion 94 is provided at an end portion of the socket housing portion 92 opposite to the side on which the fixing nut 93 is fitted (that is, the right end portion of the socket housing portion 92). The fixing unit 94 is a component that fixes the coupling mechanism 9 to the image display unit 3. The fixing part 94 includes a first fixing part 95, a second fixing part 96, and a stepped connection part 97. The first fixing portion 95 is connected to the socket accommodating portion 92. The first fixing portion 95 is located on the rear side of the protruding portion 32. The left end of the first fixing portion 95 to which the socket accommodating portion 92 is connected is located slightly to the left of the left end of the protruding portion 32. The second fixing portion 96 is located forward and to the right of the first fixing portion 95. The second fixing part 96 is located on the right side of the protruding part 32 on the rear surface of the image display part 3. The second fixing unit 96 is connected to the image display unit 3. For example, the second fixing portion 96 is connected to the base end portion 31B of the image display portion 3 on the rear side of the half mirror 35 in the front-rear direction. The step-like connecting portion 97 connects the first fixing portion 95 and the second fixing portion 96 in a step shape. The step-like connecting portion 97 extends from the front side portion of the first fixing portion 95 across the rear end of the protruding portion 32 in the left-right direction. The step-like connecting portion 97 further extends to the left side portion of the second fixing portion 96 along the protruding portion 32 on the right side of the protruding portion 32. A hole 97A penetrating in the front-rear direction is formed in a portion where the stepped connection portion 97 crosses the rear end of the protruding portion 32. The cable 39 led out from the hole 97A at the rear end of the protrusion 32 is inserted into the hole.

  The HMD 1 having the above configuration takes the form described below when the image display unit 2 is attached to the attachment portion 58 and the coupling mechanisms 8 and 9 are in the center of the movable range. As shown in FIGS. 1 and 2, the coupling mechanism 8 is provided so as to protrude to the outside of the region 10 with respect to the mounting tool 5 in a plan view. The upper end portion 4 </ b> A of the arm portion 4 is connected to the coupling mechanism 8 on the outer side of the region 10 than the coupling mechanism 8. The lower end 4B of the arm part 4 is disposed below the upper end 4A. The coupling mechanism 9 is connected to the proximal end portion 31 </ b> B of the image display unit 3 on the rear side of the image display unit 3. Since the housing 31 of the image display unit 3 extends in the left-right direction, the distal end portion 31A is disposed to the right of the proximal end portion 31B. The half mirror 35 is disposed in front of the left eye of the user.

  As shown in FIG. 8, the cable 39 drawn from the image display unit 3 travels along the arm unit 4 and is wired on the upper side of the mounting tool 5 at the attachment unit 59. The cable 39 is wired in the first holding portion 691 at the front end 69A of the holding portion 69. As described above, the first position where the end 69 </ b> A is disposed is the position 17 of the left end 65 of the wearing tool 5. Therefore, the HMD 1 can be extended in the first holding portion 691 by extending the cable 39 from the attachment portion 59 to the rear side as it is.

  As shown in FIG. 2, the first position where the end portion 69 </ b> A is arranged is a position on the rear side of the position 25 of the center of gravity of the HMD 1 in a state where the cable 39 is not held by the holding portion 69. Further, the positions 15A and 15B of the attachment portions 58 and 59 to which the image display unit 2 can be attached are positions ahead of the position 25 of the center of gravity. The position 25 of the center of gravity of the HMD 1 is a position where a resultant force of gravity acting on each part of the HMD 1 is considered to act. The position 25 of the center of gravity changes depending on the positional relationship among the wearing tool 5, the arm unit 4, and the image display unit 3. Therefore, in this embodiment, the position of the center of gravity of the HMD 1 when the cable 39 is not held by the holding portion 69 and the ball studs 81 and 91 of the coupling mechanisms 8 and 9 are respectively arranged at the center of the movable range is a reference. And The position 25 of the center of gravity is obtained as follows. For example, the HMD 1 is hung with a thread attached to an arbitrary position of the wearing tool 5 and the direction of the extension line of the thread is recorded. The HMD 1 is hung with a thread attached at an arbitrary position different from the tip of the wearing tool, and the direction of the extension line of the thread is recorded. The position of the intersection of the two recorded extension lines is obtained and set as the position 25 of the center of gravity of HMD1. As shown in FIG. 2, the position 25 of the center of gravity of the HMD 1 obtained in this way is desirably located on the left side of the center position 21 in the left-right direction and on the front side of the center position 22 in the front-rear direction.

  The weight of the image display unit 3 and the arm unit 4 is applied to the position 15B of the mounting tool 5 to which the arm unit 4 is connected. The position 15B is on the front side of the holding unit 69, and a moment that rotates the front side downward from the position 25 of the center of gravity acts on the HMD1 due to the weight of the image display unit 3 and the arm unit 4. Since the first position is located behind the center of gravity position 25, when the cable 39 is held by the holding portion 69, the weight of the cable 39 is applied to the rear portion of the HMD 1 rather than the center of gravity position 25. The moment for rotating the rear side of the HMD 1 downward increases. Therefore, the moment acting on the HMD 1 due to the weight of the image display unit 3 and the arm unit 4 is reduced. Therefore, the HMD 1 can improve the weight balance, and can prevent the image display unit 3 and the arm unit 4 from slipping off the forehead due to their own weight. Note that when the image display unit 2 is attached to the position 15A, the moment that acts on the HMD 1 due to the weight of the image display unit 3 and the arm unit 4 can be reduced by holding the cable 39 in the holding unit 68. It is the same.

  In addition, it is desirable that the length at which the first position and the attachment portion 59 are separated is equal to or larger than the minimum bending diameter determined by the physical property value of the cable 39. Preferably, the length is closer to the minimum bending diameter. The shorter the distance between the first position and the attachment portion 59 is, the less likely the cable 39 is to be hooked when the HMD 1 is attached / detached or used. If the length at which the first position and the attachment portion 59 are separated is shorter than the minimum bending diameter, the cable 39 may be subjected to a bending load.

  As shown in FIG. 4, the outer diameter D of the cable 39 wired in the first holding portion 691 is smaller than the depth H of the first holding portion 691. Therefore, the cable 39 wired in the first holding part 691 is not exposed from the opening 697 of the first holding part 691. Further, the outer diameter D of the cable 39 is larger than the size of the gap between the tip 696A of the second protrusion 696 and the side wall 691B. Therefore, the cable 39 wired in the first holding portion 691 is pressed against the side wall portion 691B by the second protruding portion 696. There are five second protrusions 696 provided in the first holding part 691, and they are arranged at substantially equal intervals along the curved shape of the first holding part 691. That is, the cable 39 is not pressed against the second protrusion 696 over the entire length of the first holding portion 691, but is partially pressed. Therefore, the first holding portion 691 hardly applies a load to the cable 39 in holding the cable 39.

  The trapezoidal protrusion 67 is provided in the left portion 52 so as to protrude inside the region 10. When the cable 39 is wired in the first holding portion 691, the cable 39 is usually fitted into the first holding portion 691 from within the region 10 by the user's hand inserted into the region 10. That is, when the cable 39 is fitted into the first holding portion 691, the cable 39 is pressed downward and from the inside of the region 10 to the outside. The second protrusion 696 is provided on the side wall 691 </ b> A inside the region 10. Therefore, the cable 39 is easily pushed over the second projecting portion 696 and is wired in the first holding portion 691 by being pressed downward and from the inside of the region 10 to the outside. When the second protrusion 696 is provided on the side wall 691B, the cable 39 is pressed against the second protrusion 696 when pressed downward and from the inside of the region 10 to the outside. Therefore, when the cable 39 is pressed by a hand inserted into the region 10, if the second projecting portion 696 is provided on the side wall portion 691B, it is difficult to fit the cable 39 into the first holding portion 691.

  The length L of the second protrusion 696 extending from the groove bottom 691C of the first holding portion 691 toward the opening 697 is at least the radius D / 2 of the cable 39. For this reason, in a state where the cable 39 is in contact with the groove bottom 691C, the second protrusion 696 contacts the cable 39 at a position separated from the groove bottom 691C by a radius D / 2 or more of the cable 39 toward the opening 697. You can touch. In other words, the second projecting portion 696 can maintain a state in which the second projecting portion 696 is in contact with the cable 39 at a position closer to the opening 697 in the depth direction than the largest portion in the groove width direction of the cable 39.

  As shown in FIG. 8, the cable 39 is wired toward the rear end portion 69 </ b> B of the holding portion 69 while being held in the first holding portion 691. Since the first holding part 691 has the opening 697 on the upper side of the mounting tool 5, the cable 39 can be received in the direction of gravity, and the cable 39 can be prevented from falling off due to gravity. The cable 39 is wired from the first holding part 691 to the fourth holding part 694. The first protrusion 695 protruding from one end of the fourth holding part 694 holds the cable 39 in the opening of the fourth holding part 694 and holds it in the fourth holding part 694. The position where the first protrusion 695 presses the cable 39 is a position where the cable 39 is taken out from the fourth holding portion 694. The fourth holding portion 694 opens on the rear side surface of the table-like protruding portion 67 and is connected to the first holding portion 691. The first protrusion 695 presses the cable 39 from the rear side toward the front side. Therefore, when the cable 39 is wired from the first holding portion 691 to the fourth holding portion 694, the cable 39 is guided by the first projecting portion 695 and below the mounting tool 5 along the shape of the fourth holding portion 694. Bent in a direction extending toward As described above, the HMD 1 routes the cable 39 extending from the attachment portion 59 to the rear side through the arm portion 4 from the front end portion 69A into the holding portion 69 and from the rear end portion 69B to the lower side of the mounting tool 5. Can be hung. The HMD 1 holds the cable 39 in the holding portion 69 and performs wiring, but does not fix it, so that the cable 39 can be easily detached from the holding portion 69.

  As described above, the configuration of the first holding unit 691 of the holding unit 69 and the configuration of the second holding unit 692 of the holding unit 69 are substantially the same. Therefore, when the connecting mechanism 8 of the image display unit 2 is connected to the mounting portion 59 in a state where the vertical direction of the mounting tool 5 is reversed, the HMD 1 connects the cable 39 in the second holding portion 692 and the first holding portion. Wiring can be performed in the same manner as 691. The mounting tool 5 includes a pair of attachment portions 58 and 59. The configuration of the first holding unit 691 of the holding unit 69 and the configuration of the first holding unit 681 of the holding unit 68 are also substantially the same. Therefore, when the coupling mechanism 8 of the image display unit 2 is connected to the attachment portion 58, the HMD 1 can wire the cable 39 in the first holding portion 681 in the same manner as the first holding portion 691. Furthermore, the configuration of the first holding unit 691 of the holding unit 69 and the configuration of the second holding unit 682 of the holding unit 68 are substantially the same. Therefore, when the connecting mechanism 8 of the image display unit 2 is connected to the mounting portion 58 in a state where the vertical direction of the mounting tool 5 is reversed, the HMD 1 causes the cable 39 to be in the second holding portion 682 and the first holding portion. Wiring can be performed in the same manner as 691.

  As described above, the cable 39 pulled out from the image display unit 3 is held by the holding units 68 and 69 of the wearing tool 5 from the first position to the second position on the back of the head. Therefore, the gap generated between the cable 39 and the mounting tool 5 can be reduced. As a result, the cable 39 is unlikely to be caught or caught when the HMD 1 is attached / detached or used, and is difficult to be detached from the mounting tool 5. On the other hand, when removing the image display unit 3 and the arm unit 4 from the mounting tool 5, the cable 39 can be easily detached from the mounting tool 5 simply by pulling the cable 39 out of the groove.

  Since the holding parts 68 and 69 extend to the rear end parts 62 and 63 of the wearing tool 5, the cable 39 held by the holding parts 68 and 69 is not easily caught or caught when the HMD 1 is attached or detached. It is hard to come off from the wearing tool 5.

  The mounting tool 5 can hold the cable 39 into the holding portions 68 and 69 by the first projecting portions 685 and 695 at the rear end portions 62 and 63. Therefore, the cable 39 is difficult to come off from the mounting tool 5. Further, the first projecting portions 685 and 695 hold the cable 39 at a position where the cable 39 is taken out from the holding portions 68 and 69, so that when the HMD 1 is attached, the portion where the cable 39 is taken out is below the fitting 5. Can guide you to head.

  When the first position is located on the front side of the attachment portions 58 and 59 of the arm portion 4, the cable 39 passing through the arm portion 4 extends from the attachment portions 58 and 59 to the front side, and then turns back to the first side. It is hold | maintained at the holding parts 68 and 69 from a position, and is wired by the path | route which goes to the rear side of the mounting tool 5. FIG. In this case, there is a possibility that a gap is generated between the cable 39 and the wearing tool at the folded portion. If this gap is caught or caught in the head of the user's hair, ears, or the like, or if the user is wearing glasses, the cable may be disconnected from the wearing tool 5. If the first position is located on the rear side of the attachment portions 58 and 59 of the arm portion 4, the cable 39 passing through the arm portion 4 extends from the attachment portions 58 and 59 to the rear side, and the holding portion 68 from the first position as it is. , 69 and wired in a path toward the rear side of the wearing tool 5. Therefore, the possibility that the cable 39 is detached from the mounting tool 5 can be reduced.

  The weight of the image display unit 3 and the arm unit 4 is applied to the position 15B of the mounting tool 5 to which the arm unit 4 is connected. The position 15B is on the front side of the holding unit 69, and a moment that rotates the front side downward from the position 25 of the center of gravity acts on the HMD1 due to the weight of the image display unit 3 and the arm unit 4. When the cable 39 is held by the holding portion 69, the weight of the cable 39 is applied to the rear portion of the HMD 1 with respect to the position 25 of the center of gravity, so that the moment for rotating the rear side of the HMD 1 downward increases. Therefore, the moment acting on the HMD 1 due to the weight of the image display unit 3 and the arm unit 4 is reduced. Therefore, the HMD 1 can improve the weight balance, and can prevent the image display unit 3 and the arm unit 4 from slipping off the forehead due to their own weight.

  Since the holding parts 68 and 69 are formed inside the ring of the open annular mounting tool 5, the cable 39 held by the holding parts 68 and 69 is difficult to be caught from the outside of the mounting tool 5, and is detached from the mounting tool 5. Hateful.

  The holding portions 68 and 69 are respectively provided on the right side portion 51 and the left side portion 52 of the mounting tool 5. When the connection destination of the arm portion 4 is changed in the left-right direction of the mounting tool 5, for example, from the left attachment portion 59 to the right attachment portion 58, the cable 39 is held by the holding portion 68 close to the changed attachment portion 58. Can be made.

  The holding parts 68 and 69 have an opening on the upper side in the direction in which the wearing tool 5 is used. Therefore, the HMD 1 can prevent the cable 39 from being detached from the holding portions 68 and 69 due to gravity.

  The HMD 1 can reverse the arm portion 4 in the third direction. If the mounting tool 5 is mounted upside down, the HMD 1 can rearrange the image display unit 3 from the left eye side to the right eye side. The holding parts 68 and 69 have first holding parts 681 and 691 and second holding parts 682 and 692, respectively. Even if the mounting tool 5 is used by being inverted in the vertical direction, the HMD 1 can be moved by gravity if the holding of the cable 39 is changed from the first holding portion 681, 691 to the second holding portion 682, 692, for example. It is possible to prevent the holders 68 and 69 from being detached.

  Since the cable 39 is not exposed from the holding portions 68 and 69 while being held by the holding portions 68 and 69, it is difficult to be caught or caught when the HMD 1 is attached / detached or used, and is not easily detached from the mounting tool 5.

  The second protrusions 686 and 696 can hold the cable 39 inside the holding portions 68 and 69. Therefore, the cable 39 is difficult to come off from the mounting tool 5.

  The second protrusions 686 and 696 are provided near the openings of the holding parts 68 and 69, and the cable 39 may not contact the second protrusions 686 and 696. In this case, every time the cable 39 moves in the holding portions 68 and 69 due to vibration or the like, the cable 39 may come into contact with the second protruding portions 686 and 696, and the covering portion may be worn. In this embodiment, the 2nd protrusion part 686,696 can maintain the state contact | abutted to the cable 39 in the state which the cable 39 contact | abutted to the groove bottom part. Therefore, the HMD 1 can prevent the cable 39 from being worn and can prevent the cable 39 from being detached from the holding portions 68 and 69.

  A portion of the cable 39 that is not held in the holding portions 68 and 69 may be disposed between the wearing tool 5 and the head. At least a part of the wearing tool 5 is curved, so that the gap between the wearing tool 5 and the head can be reduced along the curved shape of the head. Therefore, the cable 39 is unlikely to be caught or caught during use in the gap between the mounting tool 5 and the head, and is difficult to be detached from the mounting tool 5.

  In addition, this invention is not limited to the said embodiment, A various change is possible. The table-like protrusions 66 and 67 having the holding parts 68 and 69 may be omitted. There may be a plurality of pads 75 to 77, and the pads 75 to 77 may be intermittently arranged in the direction along the direction in which the wearing tool 5 is curved. Instead of the half mirror 35, a reflecting member that does not transmit light from the outside and substantially reflects the incident image light may be used. Instead of the half mirror 35, an optical path deflecting member such as a prism or a diffraction grating may be used. The coupling mechanisms 8 and 9 do not have to be ball joint movable parts. For example, any movable part having two or more rotational degrees of freedom by combining two or more hinges may be used. The mounting tool 5 may not be configured to be entirely curved. The curved portion of the mounting tool 5 may be a part of the mounting tool 5.

  The trapezoidal protrusions 66 and 67 may be provided continuously along the curved shape in the right part 51 and the left part 52, respectively, or may be provided intermittently. Similarly, the holding portions 68 and 69 may be provided continuously along the curved shape in the right portion 51 and the left portion 52 or may be provided intermittently. There may be a plurality of first protrusions 685, 695, respectively. In this case, the plurality of first protrusions 685 and 695 may be provided on both of the pair of side wall portions of the fourth holding portions 684 and 694, respectively. Alternatively, the first protrusions 685 and 695 may be provided on both sides of the opening of the fourth holding portions 684 and 694 in the groove width direction at the side portions of the trapezoidal protrusions 66 and 67, respectively. Good. The number of the second protrusions 686 and 696 formed in each of the first holding portions 681 and 691 and the second holding portions 682 and 692 may not be five, but only one may be provided. Two or more may be provided. The second projecting portions 686, 696 may be provided on one of the pair of side wall portions in each of the first holding portions 681, 691 and the second holding portions 682, 692, or may be provided on the other. Or you may provide in both side wall parts.

  In the above embodiment, the front-rear direction corresponds to the “first direction” of the present invention. The left-right direction corresponds to the “second direction” of the present invention. The vertical direction corresponds to the “third direction” of the present invention. The positions 11 and 13 correspond to the “second position” of the present invention. The positions 15A and 15B correspond to the “connection position” of the present invention. The positions 16 and 17 correspond to the “first position” of the present invention. The position 21 corresponds to the “center position in the second direction” of the present invention. The position 25 corresponds to the “position of the center of gravity” of the present invention. The right part 51 corresponds to the “first part” of the present invention. The left part 52 corresponds to the “second part” of the present invention. The middle front portion 53 corresponds to the “third portion” of the present invention.

  The image display unit 3 corresponds to the “image display device” of the present invention. The upper end portion 4A corresponds to the “one end portion” of the present invention. The lower end 4B corresponds to the “other end” of the present invention. The connecting mechanism 8 corresponds to the “first connecting mechanism” of the present invention. The attachment portions 58 and 59 correspond to the “connecting portion” of the present invention. The first holding portions 681 and 691 correspond to the “first holding portion” of the present invention. The second holding portions 682 and 692 correspond to the “second holding portion” of the present invention.

1 HMD
3 Image display part 4 Arm part 4A Upper end part 4B Lower end part 5 Wearing tool 8 Connection mechanism 10 Area | region 11, 13, 15A, 15B,
16, 17, 21, 25 Position 39 Cable 51 Right portion 52 Left portion 53 Middle front portion 58, 59 Mounting portion 62, 63 End portion 68, 69 Holding portion 681, 691 First holding portion 682, 692 Second holding portion 685 , 695 First protrusion 686,696 Second protrusion 691A, 691B Side wall 691C Groove bottom 696A Tip 697 Opening

Claims (12)

A first portion extending in a first direction;
A second portion extending in the first direction and disposed opposite the first portion on one side in a second direction orthogonal to the first direction;
A mounting comprising a third portion extending in the second direction, wherein both sides of the second direction are continuous to the first direction one side of the first portion and the first direction one side of the second portion, respectively. Ingredients,
An image display device for displaying an image;
An arm portion having one end connected to the mounting tool and the other end connected to the image display device;
A cable drawn from the image display device and electrically connecting the image display device and an external device;
A holding part that is formed in a groove shape in at least one of the first part and the second part and can hold the cable in the groove, and is a predetermined first part in the first direction among the parts of the wearing tool. from position than the first position is provided at a site to a second position of said first direction other side, Bei example a holding portion extending in the continuous or intermittent along the shape of the attachment,
Furthermore,
The mounting tool includes at least a third portion orthogonal to the first direction and the second direction at an opening portion of the holding portion formed between the first position and the second position. On one side of the direction,
and,
The mounting tool and the one end of the arm can be connected, and the other end of the arm can be arranged at one side and the other side of the one end at least in the third direction. A further connecting mechanism,
The holding portion is formed in a portion between the first position and the second position, and includes a first holding portion having the opening on one side in the third direction, the first position, and the second position. A head-mounted display , comprising: a second holding part formed at a position between the second position and the opening on the other side in the third direction .   A first portion extending in a first direction;
  A second portion extending in the first direction and disposed opposite the first portion on one side in a second direction orthogonal to the first direction;
  A third portion extending in the second direction, wherein both sides of the second direction are continuous with the first direction one side of the first portion and the first direction one side of the second portion;
A wearing device comprising:
  An image display device for displaying an image;
  An arm portion having one end connected to the mounting tool and the other end connected to the image display device;
  A cable drawn from the image display device and electrically connecting the image display device and an external device;
  A holding part that is formed in a groove shape in at least one of the first part and the second part and can hold the cable in the groove, and is a predetermined first part in the first direction among the parts of the wearing tool. A holding portion provided at a position from a position to a second position on the other side in the first direction from the first position, and extending continuously or intermittently along the shape of the wearing tool;
With
Furthermore,
  The wearing tool is configured such that at least one of the pair of side wall portions of the holding portion is connected to the other of the holding portion at a portion formed between the first position and the second position. A second projecting portion projecting toward the side wall portion;
and,
  The second projecting portion is at least a distal end portion at a position spaced from the groove bottom portion in the depth direction of the holding portion by a distance greater than or equal to the cross-sectional radius of the cable in a state where the cable is in contact with the groove bottom portion of the holding portion Abut against the cable
Head-mounted display featuring 3. The head mounted display according to claim 1, wherein the holding portion extends from the first position to the second position located at an end portion on the other side in the first direction of the wearing tool. The wearing tool includes, at the second position, one or more first projecting portions projecting from at least one end side in the groove width direction of the holding portion toward the center in the groove width direction. The head mounted display according to claim 3 . The said holding | maintenance part is extended to the said 2nd position from the said 1st position located in the said 1st direction other side rather than the connection position where the said arm part is connected with the said mounting tool. 4. The head mounted display according to any one of 4 above. The arm portion is coupled to the mounting tool at the connection position located on the one side in the first direction from the position of the center of gravity of the head mounted display in a state where the cable is not held in the holding portion.
The head mounted display according to claim 5 , wherein the holding portion extends from the first position located on the other side in the first direction with respect to the position of the center of gravity to the second position. The holding portion includes a head-mounted display according to any of claims 1 to 6, characterized in that formed on at least one of said first portion and said second portion. The wearing tool has a pair of connecting portions that can connect the arm portion to a position on one side and a position on the other side of the center position in the second direction,
The holding portion includes a head-mounted display according to any one of claims 1 to 7, characterized in that formed on each of said first portion and said second portion. The head mounted display according to any one of claims 1 to 8 , wherein the holding portion has a groove depth greater than an outer diameter of the cable. The mounting fixture is at least partially, said first portion, one of said second portion and from the claims 1, characterized in that the convexly curved toward the outside of the region surrounded by the third portion 9 The head mounted display as described in. A mounting device for a head mounted display,
A first portion extending in a first direction;
A second portion extending in the first direction and disposed opposite the first portion on one side in a second direction orthogonal to the first direction;
A third portion extending in the second direction, wherein both sides of the second direction are continuous with the first direction one side of the first portion and the first direction one side of the second portion;
At least one of the first part and the second part is formed in a groove shape, and is a holding part capable of holding the cable from the image display device of the head mounted display in the groove, and among the parts of the wearing tool, A holding provided in a portion from a predetermined first position in the first direction to a second position on the other side of the first direction from the first position, and continuously or intermittently extending along the shape of the wearing tool. Bei example and parts,
Furthermore,
The mounting tool includes at least a third portion orthogonal to the first direction and the second direction at an opening portion of the holding portion formed between the first position and the second position. On one side of the direction,
and,
The other end portion connects one end portion of an arm portion connected to the image display device and the mounting tool, and at least the other end portion of the arm portion is on one side with respect to the one end portion in the third direction. A coupling mechanism that can be arranged at a position and a position on the other side;
The holding portion is formed in a portion between the first position and the second position, and includes a first holding portion having the opening on one side in the third direction, the first position, and the second position. And a second holding part having the opening on the other side in the third direction .   A mounting device for a head mounted display,
  A first portion extending in a first direction;
  A second portion extending in the first direction and disposed opposite the first portion on one side in a second direction orthogonal to the first direction;
  A third portion extending in the second direction, wherein both sides of the second direction are continuous with the first direction one side of the first portion and the first direction one side of the second portion;
  At least one of the first part and the second part is formed in a groove shape, and is a holding part capable of holding the cable from the image display device of the head mounted display in the groove, and among the parts of the wearing tool, A holding provided in a portion from a predetermined first position in the first direction to a second position on the other side of the first direction from the first position, and continuously or intermittently extending along the shape of the wearing tool. Department and
With
Furthermore,
  The wearing tool is configured such that at least one of the pair of side wall portions of the holding portion is connected to the other of the holding portion at a portion formed between the first position and the second position. A second projecting portion projecting toward the side wall portion;
and,
  The second projecting portion is at least a distal end portion at a position spaced from the groove bottom portion in the depth direction of the holding portion by a distance greater than or equal to the cross-sectional radius of the cable in a state where the cable is in contact with the groove bottom portion of the holding portion. Abut against the cable
Wearing device characterized by.

Images