JP5489443B2 - Body pressure distribution display system - Google Patents

Description

  The present invention relates to a body pressure distribution display system that displays the distribution of body pressure applied to the buttocks and back of a seated person sitting on a chair.

  Conventionally, a sensor sheet for pressure distribution measurement has been provided on the front side of the chair seat and backrest, and the distribution of pressure applied to the buttocks and back of the seated person sitting on the chair is flattened with different hues and shades of color. A display system of body pressure distribution that displays an image automatically is known (see, for example, Patent Document 1).

Japanese Patent No. 3903206

  By the way, in the body pressure distribution display system of the above-mentioned conventional Patent Document 1, the magnitude of the pressure applied to the sensor sheet for pressure distribution measurement is displayed with a difference in hue or color shading. Since the magnitude of the pressure varies depending on the weight of the seated person, when the weight of the seated person changes, if the display scale of the body pressure distribution is fixed, the displayed body pressure distribution may be unclear. For example, when expressing the magnitude of pressure with a gradient of red to blue hue, when a person with a heavy weight is seated, the pressure is too large and the distribution of red color is changed, and when a lightweight person is seated May have a blue color distribution due to too little pressure. In this case, the body pressure distribution is unclear and difficult to understand.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a body pressure distribution display system capable of automatically adjusting a body pressure distribution display scale.

In order to achieve the above object, a body pressure distribution display system according to claim 1 of the present invention is provided on the surface of a chair and a backrest of a chair, and the seater's buttocks and back when seated on the chair. A body pressure distribution display system comprising body pressure distribution detection means for detecting a body pressure distribution applied to the body pressure and body pressure distribution display means for displaying the body pressure distribution detected by the body pressure distribution detection means. Weight measurement means for measuring body weight is further provided, and the body pressure distribution display means displays at least one figure of the seat or back of the chair, displays the body pressure distribution in the figure, and the body pressure The distribution display scale is changed according to the body weight measured by the body weight measuring unit, and the body pressure distribution displaying unit displays a perspective view showing the chair viewed from diagonally above with an outline, Body pressure distribution The chair seat and the backrest in the perspective view are displayed on the surface of the chair, and the chair seat and the backrest are configured such that the inclination angle thereof can be changed, and the body pressure distribution display means is configured to display the chair seat or the backrest. When the inclination angle of at least one of the chairs is changed, the perspective view of the chair reflecting the change of the inclination angle is displayed, and the body pressure distribution display means displays the contents stored in the body pressure distribution display means. by displaying a list of each of which is characterized in that to be able to weigh the body pressure distribution against each posture of the chair.

Further, the body pressure distribution display system according to claim 2 of the present invention is the body pressure distribution display means according to claim 1, further comprising photographing means for photographing the chair and a seated person seated on the chair. Is characterized by simultaneously displaying the chair photographed by the photographing means and an image of a seated person seated on the chair, a perspective view showing the chair viewed obliquely from above, and the body pressure distribution. To do.

The body pressure distribution display system according to claim 3 of the present invention is the body pressure distribution display system according to claim 1 or 2 , wherein the weight measuring means is a load cell that measures the total weight of the chair and the pedestal on which the chair is placed. The weight of the seat is calculated by subtracting the weight of the chair and the pedestal from the weight measured by the load cell .

  According to the present invention, the body pressure distribution detecting means that is provided on the surface of the seat and the backrest of the chair and detects the body pressure distribution applied to the buttocks and back of the seated person when sitting on the chair, and the body pressure distribution In a body pressure distribution display system comprising body pressure distribution display means for displaying body pressure distribution detected by the detection means, the body pressure distribution display system further comprises weight measurement means for measuring the weight of the seated person, While displaying at least one figure of the chair seat or backrest, the body pressure distribution is displayed in the figure, and the display scale of the body pressure distribution is changed according to the body weight measured by the body weight measuring means Therefore, the display scale of the body pressure distribution can be automatically adjusted. For this reason, the body pressure distribution can always be displayed easily regardless of the weight of the seated person.

  A preferred embodiment of a body pressure distribution display system according to the present invention will be described below in detail with reference to the accompanying drawings, taking as an example a case where the system is used in a seat simulator (locator). FIG. 1 is a schematic block diagram of a body pressure distribution display system according to the present invention. 2 is a perspective view of the seat simulator body, FIG. 3 is a front view, FIG. 4 is an upper plan view, and FIG. 5 is a side view.

  As shown in FIG. 1, a body pressure distribution display system 10 according to the present invention includes a seat simulator body (hereinafter also referred to as “chair”) 12 as a chair, and a PLC (programmable logic controller). 14, a control personal computer (personal computer) 16 as a body pressure distribution display unit, a large screen display 18, a Web camera 20 as a photographing unit, and a touch panel 22.

  As shown in FIGS. 2 to 5, the seat simulator main body 12 includes a substantially rectangular plate-like seat 24 and a backrest 26, and the seat 24 and the backrest 26 have seats for body pressure distribution detecting means on the surfaces thereof. And the back load sensor sheets 28 and 30 are arranged. Further, a load cell 36 as a body weight measuring means for measuring the weight of the main body 12 and the seated person is arranged on the leg portion 34 of the base 32 of the seat simulator main body 12. The seat simulator body 12 can be in various postures by five servo motors 38 (not shown) provided on the back side of the seat 24 and the backrest 26.

  As shown in the side view of FIG. 5, the seat 24 can be displaced by three operation axes, that is, up, down, front and back, and inclined, and can move in the up and down direction and the front and rear direction to change its position. The inclination angle in the front-rear direction can be changed. With respect to the backrest 26, it is possible to displace two movement axes, vertical and inclined, and the vertical position of the backrest 26 itself with respect to the surface of the seat 24 can be changed, and the vertical inclination angle can be changed. can do.

  Here, the seat 24 and the backrest 26 can operate in relation to each other like a known tilt mechanism. For example, when the backrest 26 is tilted by a predetermined amount, the seat 24 is interlocked with the tilting of the backrest 26. By performing control in which all the operation axes of the servo motor 38 arrive at the target position simultaneously from the current position by the PLC 14, the operation is as if it were a link operation. The seat simulator body 12 can be moved by casters 40 arranged on the leg portions 34 at the four corners of the lower surface of the pedestal 32, and can be fixed to the floor by an adjuster 42. A step 44 is provided on the lower front side of the seat.

  The PLC 14 controls each servo motor 38 in sequence, and manages the current coordinates of each operation axis, while controlling the operation so that the position of the seat 24 or the backrest 26 is moved to the designated position. A signal indicating the state of each operating axis is sent to the control personal computer 16, and a movement instruction signal is sent from the control personal computer 16 to the PLC 14. The PLC 14 stores data 14a relating to the position and inclination of the seat 24 and the backrest 26 for each height and sex. For example, if a woman with a height of 160 cm is selected and instructed by the control personal computer 16, the PLC 14 reads the position and inclination conditions of the seat 24 and the backrest 26 suitable for a woman with a height of 160 cm from this data 14 a and drives each servo motor 38. Then, the seat 24 and the backrest 26 are moved to corresponding positions. The PLC 14 receives the weight signal from the load cell 36 and transmits it to the control personal computer 16.

  While the control personal computer 16 controls the posture of the chair 12 via the PLC 14 in accordance with the operation of the touch panel 22, a perspective view 56 and a body of the chair at that time as shown in a screen image 50 shown in FIG. 6. The pressure distribution 54 and the captured image 52 at the time of sitting are displayed on the large screen display 18. The control personal computer 16 receives an operation signal from the touch panel 22 and sends a movement instruction signal to the PLC 14, while receiving a signal indicating the state of each operation axis from the PLC 14.

  In addition, the control personal computer 16 draws a perspective view 56 of the chair 12 as viewed obliquely from the upper side based on a signal indicating the state of each motion axis, and draws a contour line as shown in FIG. It is displayed on the screen display 18. In this case, it displays with the perspective view of the aspect drawn in three dimensions which can discriminate | determine the inclination angle of the seat 24 and the backrest 26. FIG. When at least one position or inclination angle of the seat 24 or the backrest 26 of the chair 12 is changed by driving the servo motor 38, a perspective view 56 of the chair reflecting the change is displayed. . For example, in a posture in which the backrest 26 is laid down, the perspective view 56 displays the outline of the chair 12 that can determine the posture in which the backrest 26 is laid down, and the servomotor 38 is driven to raise the backrest 26. When the posture is changed, the outline of the chair 12 that allows the posture with the backrest 26 to be determined is displayed in the perspective view 56.

  On the other hand, the control personal computer 16 receives the body pressure distribution signal from the seat and back load sensor sheets 28 and 30, and the body pressure distribution 54 is displayed on the chair perspective view 56 as shown in the right half of FIG. indicate. In this case, the body pressure distribution 54 is displayed in real time on the corresponding portions of the surface of the seat 24 and the backrest 26 in the perspective view 56 of the chair. By doing so, it becomes easier to understand which part of the seat 24 and the backrest 26 is under pressure as compared with the conventional planar display.

  Further, the control personal computer 16 receives a video or image signal from the side of the chair 12 and the seated person taken by the Web camera 20 and displays it on the large screen display 18. As shown in the screen image 50 of FIG. 6, the screen layout in the large screen display 18 is a chair three-dimensional image in which a photographed image 52 by the Web camera 20 is arranged on the left half of the screen and a body pressure distribution 54 is displayed on the right half of the screen. A typical perspective view 56 is arranged. The captured image 52, the perspective view 56 of the chair, and the body pressure distribution 54 are displayed in conjunction with each other. In the photographed image 52, position information of the current chair posture such as a back angle, a backrest point height, a seat angle, a sitting reference point, and a seating surface height is displayed.

  In the body pressure distribution 54, for example, the magnitude of the pressure can be displayed by a difference in hue or color shading. In this case, the hue and the color density may be expressed by a preset threshold value. When expressing the magnitude of pressure by the difference in hue, for example, a load per unit area of 100 gf or more is red, less than 75 gf is blue, and the middle is represented by hue gradient, and the pressure values are in the order of red, green, and blue. You may set so that it may become small. Further, when no pressure is applied, it may be set so as not to develop color.

  The seat and back load sensor sheets 28 and 30 are sheets made of pressure-sensitive conductive rubber that is energized by receiving pressure, and detects a body pressure distribution applied to the seated person's buttocks and back when seated on a chair. For this purpose, it is arranged on the surface of the seat 24 and the backrest 26. As these load sensor sheets 28 and 30, for example, planar sheets in which load measurement points of a total of 1024 locations of 32 locations in the X direction × 32 locations in the Y direction are arranged every 5 mm can be used. A load (body pressure distribution) signal measured at each point is sent to the control personal computer 16.

  The load cell 36 measures the overall weight of the seat simulator body 12 including the seated person. The weight signal automatically measured by the load cell 36 is sent to the control personal computer 16 via the PLC 14 and used to adjust the display scale so that the body pressure distribution is always easy to see. Specifically, the body pressure measured by the load sensor sheets 28 and 30 varies depending on the weight of the seated person, and the pressure display scale is defined when the magnitude of the pressure is expressed by the difference in red to blue hue. If a heavy person is seated, the pressure will be too high and a red color will be distributed, and if a lightweight person is seated, the pressure will be too small and a blue color will be distributed. there is a possibility. In this case, the body pressure distribution is unclear and difficult to understand.

  Therefore, the threshold of the display scale of the body pressure distribution 54 is changed according to the weight of the seated person automatically acquired by the load cell 36 so that the body pressure distribution 54 is always displayed with hue gradient. By doing this, the relative difference in pressure in the seating surface and backrest surface can be expressed by the difference in red to blue hue, regardless of the weight of the person. 54 can always be clearly displayed. The weight of the seat simulator body 12 including the pedestal 32 is known in advance, and the weight of the seated person is calculated by subtracting the weights of the main body 12 and the pedestal 32 from the weight measured by the load cell 36.

  As shown in the screen image 50 in FIG. 6, the large screen display 18 is a screen for displaying in real time a photographed image 52, a perspective view 56 of the chair, and a body pressure distribution 54 processed by the control personal computer 16. Is. It is placed in a place where a seated person can see the display. For example, a 37-inch display can be used as the large screen display 18.

  The web camera 20 is a camera that photographs the chair 12 and a seated person from the side. Video and image signals captured by the Web camera 20 are sent to the control personal computer 16. In the present invention, the present invention is not necessarily limited to the Web camera, and any apparatus may be used as long as it can capture a seated image or video with the control personal computer 16.

  The touch panel 22 is used for inputting / outputting the operation contents of the servo motor 38 of each operation axis, the height condition of the seated person, and the like. The touch panel 22 is connected to the control personal computer 16, and an input on the touch panel 22 is sent to the PLC 14 via the control personal computer 16. A signal from the control personal computer 16 is output to the touch panel 22.

  As shown in FIGS. 7-1 to 7-6, the touch panel 22 is switched to an operation start screen, a password input screen, a main operation screen, a height input screen, and an operation start screen. . On the main operation screen, buttons for height, proper posture, fine adjustment, easy posture, backward leaning posture and forward leaning posture are arranged so that the chair posture can be operated. Further, screen stop, save # 1 to # 4, monitor screen switching, height input, male and female buttons are arranged. Further, a height display section, a driving end button, and a return button are arranged. By touching these buttons with a finger and sending operation instructions to the control personal computer 16, the posture of the seat 24 and the backrest 26 of the seat simulator body 12 can be automatically or manually operated, and the screen display of the large screen display 18 can be controlled. It can be stored in the personal computer 16. Although not shown here, a posture recording button may be provided so that the recorded chair posture can be reproduced.

The operation and action of the above configuration will be described.
When seated on the seat simulator body 12, the body pressure distribution in the seat 24 and the backrest 26 is measured by the seat and back load sensor sheets 28 and 30, and the signal is sent to the control personal computer 16. On the other hand, an image signal from the Web camera 20 that captures the seat simulator body 12 and the seated person from the side is sent to the control personal computer 16. On the other hand, signals of the positions of the seat 24 and the backrest 26 are sent to the control personal computer 16 through the PLC 14, and the perspective view 56 of the chair is drawn by the contour line in the control personal computer 16. When the servo motor 38 is moved through the control personal computer 16 and the PLC 14 by operating the touch panel 22 to change the position and orientation of the seat 24 or the backrest 26, the control personal computer 16 reflects the perspective of the chair reflecting the change. Control is performed so that FIG. 56 is drawn.

  The personal computer 16 for control performs the process for displaying the body pressure distribution 54 on the surface of the seat 24 and the surface of the backrest 26 in the perspective view 56 of the chair, based on the signal of the body pressure distribution. In this case, the hue or color shade corresponding to the measured load value is displayed at the position corresponding to each load measurement point. On the large screen display 18, a side view image or image 52 in a sitting state from the control personal computer 16, a perspective view 56 of the chair, and a body pressure distribution 54 are displayed in conjunction with each other on the same screen.

  Here, the threshold of the display scale of the body pressure distribution 54 is automatically changed based on the weight of the seated person automatically measured by the load cell 36. Thereby, the body pressure distribution 54 is always easily displayed.

  Thus, according to the present invention, the distribution of the pressure (body pressure) applied to the body of the seated person from the seat 24 and the backrest 26 is measured, and the perspective view 56 of the chair on which the body pressure distribution 54 is placed and the sitting state A screen image 50 including the captured image 52 is displayed on the screen of the large screen display 18 in real time. The seated person can check the posture of the chair 12 at the time of sitting, the position of the body, and the state of the body pressure distribution 54 at that time on the large screen display 18. In addition, the display scale of the body pressure distribution 54 is automatically adjusted by the action of the load cell 36, and the distribution display is always easy to see even if the weight of the seated person changes greatly. In the present invention, it is also possible to display the body pressure distribution on a normal plan view having no outline.

  On the other hand, the seated image 52 and the tilted posture of the chair and the body pressure distribution 54 in the perspective view 56 are linked to each other. When the posture of the seat simulator body 12 is changed by driving the servo motor 38, This is reflected in the chair posture and body pressure distribution 54 in FIG. Therefore, it is easier to grasp the relationship between the chair seat 24 and the backrest 26 than in the conventional display of the planar body pressure distribution, and it is intuitive how much pressure is applied to which part of the seat 24 and the backrest 26. Can be easily understood.

  In addition, the seated person can experience a difference in sitting comfort due to a difference in the position of the seat 24 and the backrest 26 and an inclination posture. By adjusting the tilted posture of the seat 24 and the backrest 26, for example, the condition of the tilted posture of the chair seat 24 and the backrest 26 that does not get tired even if a person who does not know the conditions of the chair suitable for the body sits for a long time. You can also let them know.

  Next, an example of studying the optimum posture of the chair using the seat simulator will be described with reference to the drawings. 7A to 7D are operation screen images of the touch panel 22. FIG. 8 is a screen image in which four recorded images of the sheet simulator are displayed as a list on the large screen display 18.

  As illustrated in FIG. 7A, when the operator presses the operation start button 60a on the operation start screen 60 that is an initial display screen of the touch panel 22, the screen is switched to a password input screen 62 as illustrated in FIG. 7B. When the numeric keypad 62a is used to enter and confirm a four-digit password, a main operation screen 64 is displayed on the touch panel 22, as shown in FIG. On this screen 64, the posture state of the chair can be selected and operated.

  First, enter the gender and height of the seated person. When the height input button 64a is pressed, the screen is switched to a height input screen 66 as shown in FIG. 7-4. Using the numeric keypad 66a, the height of the seated person (168 cm in the figure) is input, and the screen returns to the main operation screen 64.

  First, as a demonstration 1, a case where a seated person experiences a chair whose seat is too high will be described. As shown in FIG. 7-5, when the height button 68a is pressed on the main operation screen 68 of the touch panel 22, the screen is switched to the operation start screen 70 for the height state as shown in FIG. 7-6. When the operation start button 70a is pressed on this screen 70, the servo motor 38 is activated, and the height of the seat 24 becomes, for example, a height adapted to a person having a height of 2.5 m. Pressing the return button 70b returns to the main operation screen 68.

  When a seated person is seated on the chair 12, the large screen display 18 displays a seated image 52 in this state, a perspective view 56 of the chair, and a body pressure distribution 54. If the chair is too high, the heel rises, so it can be seen that the front end of the seat 24 is at a high pressure. In this case, there is a possibility that the blood flow of the leg may be hindered, and it cannot be said that the chair is appropriate for the seated person.

  Here, when the screen stop button 68 b is pressed on the main operation screen 68 of the touch panel 22, the display screen of the large screen display 18 becomes stationary. When the save # 1 button 68c is pressed, the contents of the display screen are saved in the control personal computer 16. When the screen stop button 68b is pressed again without pressing the save # 1 button 68c, the screen display of the large screen display 18 returns to the real time display.

  Next, let the seated person experience the chair in the proper posture. As shown in FIG. 7-7, when the proper posture button 72a is pressed on the main operation screen 72 of the touch panel 22, an operation start screen 74 as shown in FIG. 7-8 is displayed. When the operation start button 74a is pressed, the servo motor 38 is activated, and the posture of the chair 12 is automatically changed to a standard state corresponding to the height of the seated person (height input value 168 cm in the figure). This state is selected with reference to the data 14a relating to the representative posture of the chair 12 preset for each height and sex stored in the PLC 14.

  As described above, the seat simulator body 12 has a relatively large number of moving parts in the seat 24 and the backrest 26. Therefore, the operation becomes complicated if all positions and inclinations are sequentially set. It is designed to automatically change to a standard posture that matches gender.

  On the large screen display 18, a seating image 52 in the proper posture, a perspective view 56 of the chair, and a body pressure distribution 54 are displayed. When the seated person is hung to the back of the seat so that the hip 26 is in contact with the backrest 26, the user can feel that his / her feet are perfectly seated on the stepping platform 44 and have a seating height with no pressure on the back of the knee. From the body pressure distribution 54, for example, as shown in the recorded image # 4 in FIG. 8, the area in contact with the seating surface increases, so that the body pressure is moderately distributed around the ischia, and the back is the waist part. We can confirm that we support. Further, when the screen stop button 72b is pressed on the main operation screen 72, the display screen of the large screen display 18 is in a stationary state. By pressing the save # 2 button 72c, the display content of the large screen display 18 can be saved in the control personal computer 16. By displaying the stored display contents as a list as shown in FIG. 8, it is possible to compare and examine the body pressure distribution status for each posture of the chair.

  Here, when fine adjustment of the chair posture is performed, as shown in FIG. 7-9, the fine adjustment button 76a is pressed on the main operation screen 76 of the touch panel 22 and switched, as shown in FIG. 7-10. When the operation start button 78a is pressed on the operation start screen 78, the positions and inclinations of the seat 24 and the backrest 26 become a more appropriate chair state determined by the control personal computer 16 based on the measured body pressure distribution. Thus, the posture of the chair 12 is automatically changed. Further, by pressing the screen stop button 76b on the main operation screen 76 and pressing the save # 4 button 76c, the display content of the large screen display 18 can be saved in the control personal computer 16.

  Next, as a demonstration 2, a case where an easy chair is experienced will be described. As shown in FIGS. 7-11, the comfort posture button 80 a is pressed on the main operation screen 80 of the touch panel 22. When the operation start screen 82 as shown in FIG. 7-12 is displayed and the operation start button 82a is pressed, the servo motor 38 is operated so that the angle between the backrest surface and the seat surface is, for example, 130 degrees. The backrest 26 and the seat 24 are synchronized to perform reclining. In this case, the backrest is tilted so that the angle between the back surface and the vertical surface is 115 degrees, and the angle between the seat surface and the horizontal surface is 15 degrees.

  On the large-screen display 18, a perspective view 56 of a chair and a body pressure distribution 54 in which the tilted state can be discriminated are displayed in addition to the captured image 52 in the sitting state. From the body pressure distribution 54, for example, as shown in the recorded image # 2 in FIG. 8, it can be confirmed that the contact area on the back increases and the pressure on the seating surface decreases. It can also be confirmed that if the waist part moves away when reclining, only the upper part of the waist hits. In this case, since the line of sight faces upward, it is possible to experience that it is desirable to have a headrest. Further, the display content of the large screen display 18 can be stored in the control personal computer 16 by pressing the screen stop button 80b on the main operation screen 80 and pressing the save # 3 button 80c.

  Next, as a demonstration 3, a case where a chair in a tilted posture is experienced will be described. The chair tilted backwards is suitable for desktop PC work and monitoring work with many vertical surfaces.

  As shown in FIG. 7-13, the backward tilt button 84a is pressed on the main operation screen 84 of the touch panel 22. When the operation start screen 86 as shown in FIG. 7-14 is displayed and the operation start button 86a is pressed, the servo motor 38 is operated so that the angle between the backrest surface and the seat surface becomes 115 degrees, for example. The backrest 26 and the seat 24 are synchronized to perform reclining. In this case, the backrest surface is tilted so that the angle between the back surface and the vertical surface is 105 degrees, and the angle between the seat surface and the horizontal surface is 10 degrees. The large screen display 18 displays a perspective view 56 of the chair in which the tilt state can be discriminated and a body pressure distribution 54 in addition to the photographed image 52 in the seated state. Can be confirmed. Further, by pressing the screen stop button 84b on the main operation screen 84 and pressing the save # 3 button 84c, the display content of the large screen display 18 can be stored in the control personal computer 16.

  Next, as a demonstration 4, a case where a chair in a forward tilt posture is experienced will be described. The chair in the forward leaning posture is suitable for a laptop computer work that tends to be stooped, and the use of the chair with the seat surface leaning slightly forward can suppress the stooping posture.

  As shown in FIG. 7-15, the forward tilting posture button 88 a is pressed on the main operation screen 88 of the touch panel 22. When the screen is switched to the operation start screen 90 as shown in FIG. 7-16 and the operation start button 90a is pressed, the servo motor 38 is operated so that the angle between the backrest surface and the seat surface is, for example, 90 degrees. The backrest 26 and the seat 24 are synchronized to perform reclining. In this case, the backrest surface is tilted so that the angle between the back surface and the vertical surface is 92 degrees, and the angle between the seat surface and the horizontal surface is -2 degrees. The large screen display 18 displays a perspective view 56 of the chair in which the tilt state can be discriminated and a body pressure distribution 54 in addition to the photographed image 52 in the seated state. Can be confirmed.

  As shown in FIG. 7-17, when the operation end button 92a is pressed on the main operation screen 92 of the touch panel 22, the touch panel 22 is switched to an operation start screen 94 which is an initial display screen as shown in FIG. The seat simulator operation ends.

  In the above-described embodiment, the case where the touch panel 22 is used as a device for operating the posture of the seat simulator body 12 has been described, but instead of using the touch panel 22, the operation may be performed directly on a personal computer. In this case, a chair posture operation unit 96a, a body pressure distribution diagram 96b, a captured image 96c, a Web camera operation unit 96d, and the like can be provided in a screen image 96 as shown in FIG. In this way, the chair posture can be operated while checking the chair posture and body pressure distribution on the personal computer screen.

  In the above embodiment, the case where the backrest 26 is composed of one surface has been described. However, as shown in the perspective view of FIG. 10 and the side view of FIG. 11, the backrest 26 is divided into two surfaces 26a and 26b. The upper and lower backrests 26a and 26b may be moved independently by three operation axes. Further, the seat 24 may be divided into front and rear in the depth direction so that the small portion 24a on the front side can be tilted electrically.

  In this case, a total of seven servo motors 38 are provided on the back side of the backrests 26a and 26b and four on the back side of the seat 24 so that the frame itself supporting the backrest 26 can be tilted, while each of the upper and lower backs. The bends 26a and 26b can be moved with respect to the frame in three directions, up and down, front and rear, and inclined. For the seat 24, in addition to the three-axis motions of the entire seat, up and down, front and rear, and tilt, the seat front 24 tilts with respect to the rear 24b, thereby changing the depth of the seat 24. Can do. Furthermore, as shown in the perspective view of FIG. 12, it is good also as a structure provided with the headrest 48. FIG.

1 is a schematic block diagram showing an example of a body pressure distribution display system according to the present invention. It is a perspective view which shows an example of a seat simulator main body. It is a front view of the seat simulator main body of FIG. FIG. 3 is an upper plan view of the seat simulator body of FIG. 2. It is a side view of the seat simulator main body of FIG. It is a figure which shows an example of the display screen by the display system of the body pressure distribution which concerns on this invention. It is a figure which shows an example of the initial display screen of the operation screen by a touchscreen. It is a figure which shows an example of the password input screen of the operation screen by a touchscreen. It is a figure which shows an example of the main operation screen of the operation screen by a touchscreen. It is a figure which shows an example of the height input screen of the operation screen by a touchscreen. It is a figure which shows an example of the main operation screen of the operation screen by a touchscreen. It is a figure which shows an example of the operation start screen of the operation screen by a touch panel. It is a figure which shows an example of the main operation screen of the operation screen by a touchscreen. It is a figure which shows an example of the operation start screen of the operation screen by a touch panel. It is a figure which shows an example of the main operation screen of the operation screen by a touchscreen. It is a figure which shows an example of the operation start screen of the operation screen by a touch panel. It is a figure which shows an example of the main operation screen of the operation screen by a touchscreen. It is a figure which shows an example of the operation start screen of the operation screen by a touch panel. It is a figure which shows an example of the main operation screen of the operation screen by a touchscreen. It is a figure which shows an example of the operation start screen of the operation screen by a touch panel. It is a figure which shows an example of the main operation screen of the operation screen by a touchscreen. It is a figure which shows an example of the operation start screen of the operation screen by a touch panel. It is a figure which shows an example of the main operation screen of the operation screen by a touchscreen. It is a figure which shows an example of the initial display screen of the operation screen by a touchscreen. It is a figure which shows an example of the list display screen of four recording images acquired by the sheet simulator. It is a figure which shows an example of the display screen in the case of operating a sheet simulator with a personal computer. It is a perspective view which shows another example of a seat simulator main body, and is a figure in case a backrest is two surfaces. It is a side view of the seat simulator main body of FIG. It is a perspective view which shows an example of the seat simulator main body which has a headrest.

Explanation of symbols

10 Body pressure distribution display system 12 Seat simulator body (chair)
14 PLC
16 Control PC (body pressure distribution display means)
18 Large screen display (body pressure distribution display means)
20 Web camera (photographing means)
22 Touch panel 24 Seat 26 Backrest 28 Seat load sensor sheet (body pressure distribution detection means)
30 Backrest load sensor sheet (body pressure distribution detection means)
32 pedestal 34 leg 36 load cell (weight measurement means)
38 Servo motor 40 Caster 42 Adjuster 44 Step 48 Headrest 50 Screen image 52 Captured image 54 Body pressure distribution 56 Chair perspective view

Claims (3)

A body pressure distribution detecting means which is provided on the surface of the seat and back of the chair and detects the body pressure distribution applied to the seated person's buttocks and back when seated on the chair;
In a body pressure distribution display system comprising body pressure distribution display means for displaying the body pressure distribution detected by the body pressure distribution detection means,
A weight measuring means for measuring the weight of the seated person;
The body pressure distribution display means displays at least one figure of the seat or back of the chair, and displays the body pressure distribution in the figure.
The display scale of the body pressure distribution is changed according to the weight measured by the weight measuring means,
The body pressure distribution display means displays a perspective view showing the chair as viewed obliquely from above with a contour line, and displays the body pressure distribution on the chair seat and backrest surface in the perspective view. ,
The seat and backrest of the chair is configured to change its inclination angle,
The body pressure distribution display means displays the perspective view of the chair reflecting the change of the tilt angle when the tilt angle of at least one of the seat or the backrest of the chair is changed,
The body pressure distribution display means, by displaying a list of each of the contents stored in the body pressure distribution display means, which make it possible to weigh the body pressure distribution against each posture of the chair Body pressure distribution display system characterized by that. It further comprises photographing means for photographing the chair and a seated person seated on the chair,
The body pressure distribution display means simultaneously displays the chair photographed by the photographing means and a seated person seated on the chair, a perspective view showing the chair viewed from diagonally above, and the body pressure distribution. 2. The body pressure distribution display system according to claim 1, wherein the body pressure distribution is displayed. The body weight measuring means comprises a load cell that measures the total weight of the chair and the pedestal on which the chair is placed, and obtains the weight of the seated person by subtracting the weight of the chair and the pedestal from the weight measured by the load cell. The body pressure distribution display system according to claim 1 or 2 .

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