Simulation device

Abstract

To provide a simulated-experience device with which it is possible to experience falling off by a simple structure.SOLUTION: Provided is a simulated-experience device 10 comprising: a display unit 13 for displaying a video of a virtual space; a support structure unit 11 for supporting a subject 100; and a wear unit 12 worn by the subject 100. The support structure unit 11 includes: a rear support body 20 located at a position higher than a head of the subject 100; a front support body 21 located in front of the rear support body 20 at a same height or lower position than that; and a guide unit 22 located between the rear support body 20 and the front support body 21. The wear unit 12 includes a first belt 40 fixed to an upper body of the subject 100 and movable along a length direction of the guide unit 22; and a second belt 45 fixed to a part below the first belt 40 of the subject 100. The display unit 13 has a sensor 52 for detecting motion of the subject 100, and when the subject 100 is detected tilting forward by the sensor 52, the video of the virtual space to be displayed is changed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a simulation device that allows a user to experience a fall with a simple structure. [Background technology]

[0002] Preventing falls is extremely important when working on-site in construction, manufacturing, etc. For this reason, when working at heights, workers are required to take measures to prevent falls, such as wearing fall arrest equipment.

[0003] Even if tools and devices to prevent fall accidents are prepared, in order to prevent actual fall accidents from occurring, it is also necessary to raise awareness of fall accidents among workers who use them on-site. Therefore, one way to raise awareness of fall accidents is to have workers experience simulated fall accidents.

[0004] An example of a device that allows a simulated experience of falling is that described in Patent Document 1. This device comprises a display unit worn by the subject and a belt supported by a cart that is movable relative to a support member, and the subject is supported by the belt and moves from an upright position to an inverted position, and as this happens, an image of the subject falling in a virtual space is displayed on the display unit. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2020-178869 Summary of the Invention [Problem to be solved by the invention]

[0006] Although a device such as that described in Patent Document 1 can allow a subject to experience a realistic fall, the entire device is large-scale and requires a large space because it displaces the subject from an upright position to an inverted position.When having workers or the like experience a fall accident, it is not necessary to make the subject inverted; it is sufficient for the subject to experience a certain degree of fear, so there is a demand for a simulation device that can provide a fall experience with a simpler structure.

[0007] The present invention has been made in view of the above-mentioned problems, and has as its object to provide a simulated experience device that allows a user to experience a fall with a simple structure. [Means for solving the problem]

[0008] In order to solve the above problems, the virtual experience device according to the present invention is a device that a subject wears and experiences in a virtual space. Falling accident in a support structure that supports the subject leaning forward from the platform; and a mounting unit that is attached to the subject and connected to the support structure. structure The unit comprises a rear support disposed at a position higher than the head of the subject standing on the platform, a front support disposed in front of the rear support at the same height as the rear support or at a lower height than the rear support, and a guide unit disposed between the rear support and the front support, the wearing unit comprises a first belt fixed to the upper body of the subject and supported movably along the length direction of the guide unit, and a second belt fixed to the subject below the first belt and supported behind the guide unit, the display unit has a sensor for detecting the movement of the subject, and when the sensor detects that the subject has leaned forward, the display unit displays the virtual space Falling accident in Changes the image. [Effects of the Invention]

[0009] The simulated experience device of the present invention allows a subject to visually experience falling while experiencing the physical movement of falling, and the first belt can be guided along the guide section by gravity, thereby simplifying the structure for supporting the subject as he or she leans over.

[0010] Furthermore, in the simulation device according to the present invention, the guide part may be made of a rope-like member, and the first belt may have a pulley part that slides on the guide part. This allows the first belt to slide smoothly relative to the guide part as the guide part flexes, making it easier for the subject to lean and enabling reliable support for the subject who has leaned.

[0011] In the simulation device according to the present invention, the rear support and the front support may each be supported by a support column, thereby providing a strong structural support for the rear support and the front support, and reliably supporting the subject who has leaned forward.

[0012] In the simulation device according to the present invention, the second belt may have a length variable section that pays out the second belt in accordance with the distance between the rear support and the subject, whereby the second belt is paid out in accordance with the subject's inclination and can support the subject when it reaches its maximum length.

[0013] In addition, in the simulated experience device according to the present invention, the length-adjustable part may be provided on the rear support and support the second belt, and the second belt may be fixed to the rear support or a support part other than the rear support. In this way, the second belt is supported by a structure, so that a subject who has leaned down can be reliably supported. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view of a simulation device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a diagram illustrating the configuration of a display unit. [Figure 3] FIG. 2 is a side view of the simulated experience device, with components in front of the subject omitted. [Figure 4] FIG. 4 is a diagram showing a state in which the subject has leaned from the state shown in FIG. 3. [Figure 5] FIG. 10 is a side view of a simulation device in which a foot rest is provided on a platform. [Figure 6]FIG. 6 is a diagram showing a state in which the subject has leaned from the state shown in FIG. 5. [Figure 7] FIG. 10 is a side view of the simulator when the rear support and the front support are at the same height. [Figure 8] FIG. 8 is a diagram showing a state in which the subject has leaned from the state shown in FIG. 7. DETAILED DESCRIPTION OF THE INVENTION

[0015] An embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 shows a perspective view of a virtual experience device 10 according to this embodiment. In the virtual experience device 10 of this embodiment, a subject 100 leans forward from a platform 15, and a video of the scene in which the subject 100 is falling in a virtual space is displayed on a display unit 13 worn by the subject 100 in accordance with the subject's movement, allowing the subject 100 to experience a simulated fall.

[0016] The simulated experience device 10 has a display unit 13 that is worn by the subject 100 and displays an image of a virtual space, a support structure unit 11 that supports the subject 100 as he leans forward from the step 15, and an attachment unit 12 that is worn by the subject 100 and connected to the support structure unit 11.

[0017] The display unit 13 is a so-called VR device, and is a goggle-like device that is worn on the head of the subject 100 by a fixing band 55. As shown in Fig. 2, the display unit 13 has a control unit 50, a memory unit 51 that stores information such as images, an acceleration sensor 52 that detects movement, and a monitor unit 53 that displays the image. The display unit 13 detects the forward leaning movement of the subject 100 using the acceleration sensor 52, and the control unit 50 changes the image of the virtual space displayed on the monitor unit 53 in accordance with the detected movement of the subject 100.

[0018] The support structure 11 has two rear support columns 24 that are spaced apart from each other and two front support columns 25 that are spaced apart from each other and are positioned forward of the rear support columns 24. The front support columns 25 are shorter in height than the rear support columns 24. A front-rear connecting section 26 is disposed at an angle between the rear support columns 24 and the front support columns 25.

[0019] A rear support 20 is placed between two rear support columns 24. A front support 21 is placed between two front support columns 25. The rear support 20 is placed at a height higher than the head of the subject 100 standing on the platform 15. The front support 21 is placed at a height lower than the rear support 20.

[0020] In this embodiment, the front support 25 is lower than the rear support 24, but the front support 25 may be at the same height as the rear support 24. In this embodiment, even in this case, the front support 21 is disposed at a lower height position than the rear support 20.

[0021] The height at which the rear support 20 is placed may be any height above the head of the subject 100 standing on the step stool 15, and may be, for example, about 3 meters above the floor. The height at which the front support 21 is placed may be any height that avoids contact with the floor when the subject 100 leans forward, and may be, for example, about 1 meter above the floor.

[0022] The rear support 24, the front support 25, the rear support 20, and the front support 21 are made of metal rectangular pillars. However, they may be made of other materials such as cylinders or angles as long as they are strong enough to function as a structure.

[0023] As shown in Figure 3, a rope-like guide member 22 is stretched between the rear support member 20 and the front support member 21. Both ends of the guide member 22 are fixed to the rear support member 20 and the front support member 21, respectively. Therefore, the support heights of both ends of the guide member 22 are different, and the guide member 22 slopes downward from the rear to the front. The guide member 22 is located approximately in the center of the rear support member 20 and the front support member 21.

[0024] The attachment section 12 comprises a first belt 40 fixed to the upper body of the subject 100 and supported movably along the longitudinal direction of the guide section 22, and a second belt 45 fixed to the subject 100 below the first belt 40 and supported by a rear support 20 rearward of the guide section 22.

[0025] One end of the first belt 40 is fixed to the belt fixing portion 30a of the upper fixing strap 30 worn by the subject 100 on the shoulder. The other end of the first belt 40 is fixed to a movable portion 41 that engages with the guide portion 22. The movable portion 41 has a pulley portion 41a that can slide along the guide portion 22, and a ring-shaped connecting portion 41b that is fixed to the pulley portion 41a and connected to the other end of the first belt 40. Because the height at which the guide portion 22 is fixed to the front support 21 is lower than the height at which it is fixed to the rear support 20, the guide portion 22 is inclined downward toward the front, and the movable portion 41 can easily move forward along the guide portion 22. Note that the movable portion 41 does not have to have the pulley portion 41a, and may have a simple structure in which, for example, a harness hook is hooked onto the guide portion 22.

[0026] One end of the second belt 45 is fixed to the belt fixing portion 31a of the lower fixing belt 31 that the subject 100 wears around the waist. The other end of the second belt 45 is supported by a length variable portion 46 provided on the rear support 20, and the other end is fixed to the rear support column 24. The second belt 45 is wound around the length variable portion 46, and can be unwound when the subject 100 leans forward. The second belt 45 can support the subject 100 because the other end is fixed to the rear support 20.

[0027] The second belt 45 may be provided so that it can be pulled backward by a person via a pulley or the like provided on the rear support 20. In this case, by pulling the second belt 45 backward, the subject 100 is lifted off the step 15, and the movable part 41 of the first belt 40 is guided by the guide part 22 to move forward, thereby causing the subject 100 to lean forward.

[0028] The subject 100 may lean forward by having the subject 100 lean from the platform 15 himself or herself, or the platform 15 may be moved or moved downward by another person, thereby floating the body of the subject 100. By floating the body of the subject 100 from the platform 15, the movable part 41 of the first belt 40 moves along the guide part 22, and the subject 100 can lean forward.

[0029] The first belt 40 and the second belt 45 are both formed in a belt shape and made of a material that can support the weight of the subject 100 and the force that accompanies the movement of the subject 100.

[0030] As shown in Fig. 4, when the subject 100 leans forward from the platform 15, the movable part 41 of the first belt 40 moves forward along the guide part 22, supporting the upper body of the subject 100. As the waist of the subject 100 moves away from the rear support 20, the second belt 45 is unwound from the length-variable part 46, and the waist of the subject 100 is supported by the second belt 45 fixed to the rear support 24. As a result, the subject 100, who has leaned forward, changes from an upright position to a nearly horizontal position. During this process, the display unit 13 detects the subject 100's leaning movement and displays an image of the subject 100 falling in the virtual space.

[0031] Since the first belt 40 is provided at a downward incline from the rear support 20 to the front support 21, as the subject 100 leans forward, the movable part 41 moves along the guide part 22 by gravity. When the subject 100 leans until the second belt 45 reaches its maximum unreeled length, the forward movement of the subject 100 is restricted by the second belt 45, and the upper body of the subject 100 is suspended by the first belt 40. From the time the subject 100 starts to lean until the time the subject 100 is suspended by the first belt 40, the subject 100 experiences body movements and accelerations similar to those of a fall accident, and at the same time, the subject 100 visually experiences the scene seen when falling on the display part 13, allowing the subject 100 to experience the same sense of fear as if he or she were actually falling.

[0032] The virtual experience device 10 may have a stimulating unit that applies vibrations or a small electric shock to the subject 100. The stimulating unit may be provided on the display unit 13 or on a member that the subject wears separately from the display unit 13. The stimulating unit applies a stimulus to the subject while displaying a scene of the subject 100 leaning over and falling to the ground in the virtual space on the display unit 13, thereby making the falling experience more realistic.

[0033] According to the simulation device 10 of this embodiment, the subject 100 can visually experience a fall while bodily experiencing the motion of falling. Therefore, compared to simply experiencing the motion of falling or simply experiencing a fall visually, a more realistic simulated fall can be experienced. The subject 100 who experiences a simulated fall can personally experience the horror of a fall accident, thereby raising awareness of how to prevent fall accidents.

[0034] Furthermore, in the simulated experience device 10 of this embodiment, the rear support 20 and the front support 21, which fix both ends of the guide unit 22, are at different heights, so that the first belt 40 can be guided by gravity and the structure for supporting the subject 100 who is leaning can be simplified. In addition, because the simulated experience device 10 changes the subject 100 from an upright position to a horizontal position at most, the depth and height of the support structure 11 can be made compact. For this reason, the simulated experience device 10 of this embodiment can be easily installed indoors, for example, in a conference room, and can be brought to various work sites to allow workers to experience falling and improve their awareness.

[0035] Next, a modified example of the simulated experience device 10 will be described. As shown in Fig. 5, the simulated experience device 10 may have a foot support unit 16 on a footstool 15. The foot support unit 16 fixes the feet of the subject 100 so that they do not move. The rest of the configuration of the simulated experience device 10 is the same as that described above.

[0036] As shown in Fig. 6, the subject 100 can lean with their feet fixed to the foot fixing parts 16. As the subject 100 leans, the movable part 41 of the first belt 40 moves along the guide part 22, and the second belt 45 is unwound to support the subject 100. Because the feet of the subject 100 are fixed to the foot fixing parts 16, the subject 100 can lean up to about 45 degrees. As the subject 100 leans, the display part 13 detects the movement with the acceleration sensor 52 and displays a scene of the subject 100 falling in the virtual space.

[0037] Even if the subject 100 tilts at an angle of about 45 degrees while keeping his / her feet fixed, the subject 100 can experience the movement and acceleration of his / her body when falling. In addition, by displaying a scene of falling in a virtual space on the display unit 13 worn by the subject 100, the subject 100 can experience the same sense of fear as if he / she were actually falling.

[0038] Next, another embodiment of the simulated experience device 10 will be described. As shown in FIG. 7, the rear support 20 and the front support 21 of the support structure 11 may be disposed at the same height. In this case, both ends of the guide portion 22 are supported at the same height. The guide portion 22 is a flexible, lobe-shaped member, and therefore bends along its length. Therefore, the guide portion 22 is inclined downward toward the center in the length direction.

[0039] As shown in Fig. 8, when the subject 100 leans, the movable section 41 moves forward along the guide section 22. As shown in Figs. 1 to 6, when the support heights of both ends of the guide section 22 are different, the movable section 41 can move more smoothly along the guide section 22. However, even when the support heights of both ends of the guide section 22 are the same, as shown in Figs. 7 and 8, the guide section 22 is bent, and the movable section 41 can move forward due to gravity. As a result, the subject 100 is supported by the first belt 40 and the second belt 45, and can lean to a nearly horizontal state.

[0040] Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and the present invention can be applied in various ways within the scope of its technical concept. [Explanation of symbols]

[0041] 10 Simulation Device 11 Support structure 12 Mounting part 13 Display section 15 Stepping Stone 16 Foot fixing part 20 Rear support 21 Front support 22 Guidance part 24 Rear support 25 Front support 26 Front and rear connections 30 Upper fixing belt 30a Belt fixing part 31 Lower fixing belt 31a Belt fixing part 40 First Belt 41 Moving parts 41a Pulley part 41b Connection part 45 Second Belt 46 Variable length section 50 control section 51 Storage section 52 Acceleration sensor 53 Monitor section 55 Fixing band 100 Target Audience

Claims

1. a display unit worn by the subject and displaying a video of a fall accident in the virtual space; a support structure that supports the subject leaning forward from the platform; a mounting portion that is mounted on the subject and connected to the support structure portion, The support structure includes a rear support disposed at a position higher than the head of the subject standing on the platform, a front support disposed in front of the rear support at the same height as the rear support or at a lower height than the rear support, and a guide section extending between the rear support and the front support, The attachment unit includes a first belt fixed to the upper body of the subject and supported movably along the length direction of the guide unit, and a second belt fixed to the subject below the first belt and supported rearward of the guide unit, The display unit has a sensor that detects the movement of the subject, and when the sensor detects that the subject has leaned forward, the simulated experience device changes the image of the falling accident displayed in the virtual space.

2. 2. The simulation experience device according to claim 1, wherein the guide portion is made of a rope-like member, and the first belt has a pulley portion that slides on the guide portion.

3. 3. The simulation experience device according to claim 1, wherein the rear support and the front support are supported by pillars.

4. 3. The simulated experience device according to claim 1, wherein the second belt has a length-variable portion that pays out the second belt in accordance with the distance between the rear support and the subject.

5. 5. The simulated experience device according to claim 4, wherein the length variable portion is provided on the rear support and supports the second belt, and the second belt is fixed to the rear support or a support portion separate from the rear support.

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