Shape measuring device

Abstract

To provide a shape measuring device that has a simplified structure, has reduced size and weight, can precisely perform shape measurement and can collect data for manufacturing a sitting position retainer matching each individual.SOLUTION: A shape measuring device 10 comprises: a cylinder region 21 in which a plurality of columnar and tubular cylinders 22 are formed substantially in parallel; shafts 23 which are movable within the cylinders 22 and have portions protruding from the cylinders 22; a cylinder unit 20 which has a common region 30 that shares all one ends of the cylinders 22 in the cylinder region 21; shaft driving means 40 which is connected to the common region 30 and can move the shafts; and locking means 50 which can stop movement of the shafts 23 and release the stop.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a mold-taking device that can collect data to manufacture seating support devices that are adapted to each individual, including able-bodied people and people with disabilities. Here, "mold-taking" refers to the process of "taking a mold," which is the act of taking a mold of the shape of the target seat and back. [Background technology]

[0002] In general, many people with disabilities have reduced flexibility and changed body shapes compared to able-bodied people due to excessive muscle tension, arching, deformation, etc., and the degree of this varies greatly from person to person, so the stable sitting position also varies greatly from person to person.

[0003] For example, Fig. 9 discloses a seating posture evaluation device 100 for disabled persons (see, for example, Patent Document 1, etc.). The seating posture evaluation device 100 comprises a seat portion 110 on which a person sits and a back portion (divided plates 130 protruding from a back frame 120) that supports the upper body from behind, and determines a stable posture of a person in a seated state. The back portion is formed by arranging a plurality of divided plates 130, each formed in a substantially identical rectangular plate shape and extending in the left-right direction, in parallel with each other at substantially constant intervals in the up-down direction on the back frame 120, and an actuator is formed by providing a pair of protrusion drive means 140 near both left-right ends of each divided plate 130, which applies a drive force to the divided plates 130 in the protruding direction from the back frame 120, and the pair of protrusion drive means 140 can be operated separately. The divided plates 130 are moved and tilted in the protruding direction relative to the back frame 120 by this, while sensor means are provided to detect the moving and tilting forces of the divided plates 130 in the protruding direction due to body pressure acting on each of the divided plates 130, and a pair of protruding drive means 140 acting as actuators are operated and controlled based on the detection signals of the sensor means, thereby making it possible to change and adjust the body pressure distribution on the divided plates 130.Furthermore, position measurement means are provided to measure the protruding position of each of the left and right side portions of the divided plates 130 relative to the back frame 120, and the moving and tilting positions of each divided plate 130 in the protruding direction relative to the back frame 120 are determined based on the measurement results of the protruding positions. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 3906993 Summary of the Invention [Problem to be solved by the invention]

[0005] In the case of FIG. 9, if more precise casting is required, a large number of actuators will be required, which will increase the number of parts and raise concerns about an increase in the size and weight of the device.

[0006] The present invention provides a mold-taking device that has a simplified configuration, is small and lightweight, and allows for precise mold-taking, and can collect data to produce seating support devices that are suitable for each individual, including able-bodied people and each individual with disabilities. [Means for solving the problem]

[0007] In order to solve the above problem, the present invention of claim 1 is a mold-taking device comprising a cylinder unit having a cylinder area in which multiple cylindrical cylinders are formed approximately parallel to one another, a shaft that is movable within the cylinder and has a portion that protrudes from the cylinder, and a common area that shares one end of all the cylinders in the cylinder area, a shaft driving means connected to the common area and that enables the shaft to move, and a locking means that enables the movement of the shaft within the cylinder to be stopped and the stop to be released.

[0008] In the present invention as set forth in claim 1, the cylindrical cylinder has a plurality of cylinder regions formed substantially parallel to one another, so that the cylinders can be arranged densely, enabling precise casting.

[0009] Furthermore, since the cylinder is provided with shafts that are movable within the cylinder and have portions that protrude from the cylinder, the mold can be taken by determining the positions of the tip ends of the multiple shafts after the mold has been taken.

[0010] Furthermore, since a common area is provided in which one end of all of the cylinders in the cylinder area is shared, and a shaft driving means is provided that is connected to the common area and enables the shafts to be moved, the shafts can be easily moved to the "position where the pressure on all of the shafts is the same = the casting position" during casting. As a result, the control of shaft movement can be simplified and casting can be easily performed.

[0011] Furthermore, since the device is equipped with a locking mechanism that allows the shaft to stop and unlock its movement within the cylinder, the shaft can be locked and unlocked during mold taking to maintain the mold taking position at the end of measurement. As a result, a custom-made seating support part for a chair or wheelchair can be produced based on the mold taking results.

[0012] The present invention of claim 2 is the mold-taking device of claim 1, which is provided with a pressure measuring means for measuring the pressure against the shaft.

[0013] In the present invention, a pressure measuring means for the shaft is provided, so that the pressure before and after the mold measurement can be confirmed as actual measured values, and the pressure distribution can be measured over a wide range. Furthermore, based on the measured pressure values, it is possible to adjust the hardness of the cushion of a seat chair, for example.

[0014] The present invention of claim 3 is a mold-taking device according to the invention of claim 1 or claim 2, in which the shaft driving means is air-driven and an air inlet and an air outlet are formed in the common area.

[0015] In the present invention of claim 3, the shaft drive means is operated by air pressure, and air inlet and outlet ports are formed in the common area, so existing air compressors, regulators, valves, etc. can be used, and the mold-taking device can be manufactured inexpensively.

[0016] The present invention of claim 4 is a casting device in which, in the invention of claim 1 or claim 2, the locking means comprises a lock bush formed of an elastic material arranged on the cylinder unit, having a through hole through which the shaft can pass and a groove, and a plate-shaped lock plate having a through hole through which the shaft can pass and arranged closer to the tip of the shaft than the lock bush, and the lock bush is pressed by moving the lock plate, and the grooves clamp the shaft on both sides to stop the movement of the shaft.

[0017] In the present invention of claim 4, the locking means comprises a lock bushing made of an elastic material disposed on the cylinder unit, the lock bushing having a through hole through which the shaft can pass and a groove, and a plate-like lock plate having a through hole through which the shaft can pass and disposed closer to the tip of the shaft than the lock bushing. The movement of the lock plate presses the lock bushing, and the grooves sandwich the shaft from both sides to stop its movement, so that multiple shafts of the cylinder unit can be stopped collectively and the stop can also be released collectively. As a result, the configuration can be simplified compared to stopping and releasing each shaft individually.

[0018] The present invention of claim 5 is a mold-taking device in which, in the invention of claim 4, the moving part that controls the movement of the locking plate of the locking means is attached to both side surfaces of the cylinder unit, or, when multiple cylinder units are connected, to both side surfaces of the cylinder unit after connection.

[0019] In the present invention of claim 5, the moving parts that control the movement of the lock plate are attached to both side surfaces of the cylinder unit, or when multiple cylinder units are connected, to both side surfaces of the connected cylinder units, so by making the mold-taking device integrated with the cylinder unit, it is possible to produce mold-taking devices of various sizes.In addition, it is also easy to connect the control system.

[0020] The present invention of claim 6 is a mold casting device according to claim 1 or claim 2, which is provided with a means for preventing lateral movement of the shaft. In the present invention of claim 6, since the means for preventing lateral movement of the shaft is provided, it is possible to prevent the shaft from being moved or locked by pressure applied to the shaft, that is, to prevent the distance between the shafts from becoming constant, causing the position of the tip of the shaft to shift, and thus preventing accurate measurement.

[0021] The present invention of claim 7 is a mold-taking device in which, in the invention of claim 6, the shaft lateral vibration prevention means comprises a plate-shaped lateral vibration prevention plate having a through hole through which the shaft can pass, and a lateral vibration prevention bush attached to the lateral vibration prevention plate, through which the shaft can slide.

[0022] In the present invention of claim 7, the shaft lateral vibration prevention means includes a plate-like lateral vibration prevention plate formed with a through hole through which the shaft can pass, and a lateral vibration prevention bush attached to the lateral vibration prevention plate, through which the shaft can slide, so that lateral vibration prevention for multiple shafts can be performed collectively. As a result, the configuration can be simplified compared to preventing lateral vibration of each shaft individually. [Effects of the Invention]

[0023] This mold-taking device comprises a cylinder unit having a cylinder area in which multiple cylindrical cylinders are formed approximately parallel to one another, a shaft that is movable within the cylinder and has a portion that protrudes from the cylinder, and a common area that shares one end of all of the cylinders in the cylinder area, a shaft driving means that is connected to the common area and allows the shaft to move, and a locking means that stops the movement of the shaft.Since the mold-taking device has a cylinder area in which multiple columnar and cylindrical cylinders are formed approximately parallel to one another, the cylinders can be arranged closely together, allowing precise mold-taking.

[0024] Furthermore, since the cylinder is provided with shafts that are movable within the cylinder and have portions that protrude from the cylinder, the mold can be taken by determining the positions of the tip ends of the multiple shafts after the mold has been taken.

[0025] Furthermore, a common area is provided that shares one end of all of the cylinders in the cylinder area, and a shaft drive means is provided that is connected to the common area and enables the shaft to be moved, thereby simplifying control.

[0026] Furthermore, since the device is equipped with a locking mechanism that stops the movement of the shaft, the shaft can be locked after the mold measurement to maintain the mold position at the end of the measurement. As a result, a custom-made seat chair or wheelchair seating support part can be produced based on the mold measurement results. [Brief explanation of the drawings]

[0027] [Figure 1] 1A and 1B are diagrams illustrating the principle of mold-taking according to the present invention, in which (a) shows the state before mold-taking and (b) shows the state during mold-taking. [Figure 2] FIG. 2 is a diagram showing the configuration of the control of the shaft driving means of the mold-taking device according to the embodiment of the present invention. [Figure 3] 1 is a perspective view of a cylinder unit used in a mold-taking device according to an embodiment of the present invention. FIG. [Figure 4] FIG. 4 is a side view of FIG. 3. [Figure 5] 1 is a perspective view of a mold-taking device according to an embodiment of the present invention. [Figure 6] FIG. 6 is a side view of FIG. 5. [Figure 7] FIG. [Figure 8] FIG. 6 is a perspective view of a seating support device using a plurality of the mold-taking devices of FIG. 5. [Figure 9] This is a conventional sitting posture evaluation device (Patent Document 1). DETAILED DESCRIPTION OF THE INVENTION

[0028] In the following explanation, the principle of the mold-taking method of the present invention will be explained based on Figure 1. Also, the control configuration of the shaft drive means of the mold-taking device will be explained based on Figure 2. After that, the cylinder unit used in the mold-taking device according to the embodiment of the present invention will be explained based on Figures 3 and 4, and a mold-taking device using multiple cylinder units will be explained based on Figures 5 to 7. Furthermore, a seating support device using multiple mold-taking devices of Figure 5 will be explained based on Figure 8. Note that the shapes, dimensions, number of cylinders formed, number of cylinder units used, materials used, etc. described below are examples and may be changed as appropriate depending on the precision of mold-taking, the mold-taking area, etc.

[0029] 1 is a diagram illustrating the principle of the casting method of the present invention, with (a) showing the state before casting and (b) showing the state during casting. Seven cylinders 22 are arranged in a cylinder area 21. Each cylinder 22 is provided with a shaft 23 that is movable within the cylinder 22 and has a portion that protrudes from the cylinder 22. One end of the shaft 23 is connected to a gasket 24, and the shaft 23 is tightly attached to the cylinder 22 by the gasket 24.

[0030] The cylinder area 21 and a common area 30, which communicates with one end of each of the seven cylinders 22, are integrated to form the cylinder unit 20. The common area 30 is formed with an air inlet 41 through which air at a predetermined pressure is introduced by a shaft driving means 40, which will be described later.

[0031] A shaft slip-out prevention plate 26 is attached to the cylinder region 21 on the opposite side from the common region 30. A lock bush 53 and a lock plate 52, which form locking means 50, are disposed on the shaft slip-out prevention plate 26. The locking means 50 will be described in detail later. Furthermore, the pressure measuring means 70 is sheet-shaped, and the pressure sensors 71 are disposed at positions corresponding to the positions of the shafts 23. As a result, as shown in Figures 1(a) and 1(b), each pressure sensor 71 is disposed in contact with the tip end 230 of the shaft 23. Note that the pressure measuring means 70 does not necessarily have to be disposed.

[0032] 1(a) shows the state before the mold is taken, and for example, part of the buttocks is seated on the shaft 23. At this time, the shaft 23 is locked by the locking means 50.

[0033] In this state, when a part of the buttocks is moved to take a mold, the seven shafts 23 (first shaft 231, second shaft 232, ..., seventh shaft 237) show the corresponding pressure values. That is, the pressure changes are "UP", "DOWN", and "- (no change)", and pressure variations occur between the shafts 23.

[0034] In this state, when the lock plate 52 is moved and the locking means 50 is released, the shaft 23 becomes movable and moves in the direction of the arrow inside the cylinder 22 in Figure 1(a). As a result, as shown in Figure 1(b), the pressure inside all seven cylinders 22 becomes the same. This phenomenon can also be confirmed by the pressure measuring means 70. Then, the shaft 23 is locked again by the locking means 50.

[0035] Even if the buttocks are removed from the seat, the shaft 23 will not move because it is locked by the locking means 50. Then, the shape of part of the buttocks can be reflected by a line (plane) connecting the positions of the tips of the shafts 23 from which the pressure measuring means 70 has been removed, and a mold can be taken.

[0036] 2 is a diagram showing the control configuration of the shaft driving means 40 of the mold casting apparatus according to an embodiment of the present invention. An air inlet 41 and an air outlet 42 are formed in the common area 30. In this embodiment, the energy source for activating the shaft driving means 40 is air pressure. The energy source for activating the locking means 50 is electricity.

[0037] In order to supply air at a predetermined pressure to the air inlet 41, a pipe through which air from an air compressor 43 passes is connected to an electro-pneumatic regulator 45 via an air filter 44. The electro-pneumatic regulator 45 is also connected to a solenoid valve 46, which is in turn connected to the air inlet 41 and the exhaust port 42. The electro-pneumatic regulator 45 controls the air pressure introduced into the common area 30, and the solenoid valve 46 supplies and exhausts air to and from the common area 30.

[0038] Fig. 3 is a perspective view of a cylinder unit used in the mold-taking apparatus according to an embodiment of the present invention, and Fig. 4 is a side view of Fig. 3. In Fig. 4, the cylinder unit 20 is shown in a perspective view so that the internal configuration can be seen. In Fig. 3, two cylinder units 20 are used.

[0039] The cylinder unit 20 includes a cylinder region 21 and a common region 30. Both the cylinder region 21 and the common region 30 are made of aluminum. The cylinder region 21 has 14 cylindrical cylinders 22, seven of which are arranged horizontally in two parallel rows. The 14 cylinders 22 are arranged in parallel. The cylinders 22 have an inner diameter of 12 mm, and are arranged symmetrically on the left and right at 20 mm intervals both horizontally and in parallel. A concentric cylindrical hole with an inner diameter of 10 mm is formed below each cylinder 22.

[0040] Below the cylindrical holes, a common area 30 is formed, which is connected to the seven cylindrical holes. The common area 30 is formed as a cylindrical through-hole with an inner diameter of 10 mm, and is closed on both sides with tapered screws.

[0041] On the surface of the common area 30 opposite to the cylinder area 21, joints for an air inlet 41 and an air outlet 42, for example, one-touch pipe joints 27, are attached.

[0042] A shaft 23 is inserted into the cylinder 22. The shaft 23 is cylindrical and has a diameter of 8 mm. A gasket 24 for fixing and moving is attached to one end of the shaft 23. The gasket 24 is, for example, an O-ring. In this embodiment, a gasket attachment portion 241, which is a separate member with grooves, is attached to one end of the shaft 23, and two O-rings are fitted into the grooved portion. This gasket 24 brings the shaft 23 into close contact with the inner wall of the cylinder 22 and enables it to move along the inner wall of the cylinder 22.

[0043] A shaft removal prevention plate 26 is attached to the end of the cylinder region 21 opposite the common region 30. A through hole is formed in the shaft removal prevention plate 26 at the position of the shaft 23. The inner diameter of the through hole is larger than the diameter of the shaft 23 and smaller than the inner diameter of the cylinder 22.

[0044] A lock bush 53 of a locking means 50 is attached to the shaft 23 protruding from the shaft removal prevention plate 26. The locking means 50 will be described in detail later.

[0045] Fig. 5 is a perspective view of a mold-taking device according to an embodiment of the present invention, and Fig. 6 is a side view of Fig. 5. In this embodiment, the mold-taking device 10 uses three cylinder units 20 (six cylinder units 20) as shown in Fig. 3, and has locking means 50 attached to both sides. Also, above the locking means 50, there is attached a shaft lateral vibration prevention means 60 that prevents the shaft 23 from vibrating laterally when it moves within the cylinder 22 or when the shaft 23 is pressed from its tip end 230, i.e., prevents the position of the tip end 230 of the shaft 23 from deviating from the normal movement direction within the cylinder 22.

[0046] The locking means 50 is composed of a lock plate 52, a lock bush 53, and a moving part 51 that raises and lowers the lock plate 52. As mentioned above, the lock bush 53 is attached to the shaft 23 that protrudes from the shaft slip-out prevention plate 26. Figure 7 is a perspective view of the lock bush 53. The lock bush 53 is made of urethane rubber. The lock bush 53 has a cylindrical part 531 and a truncated cone part 532, and is formed with a through hole within which the shaft 23 can move in the vertical direction in Figure 7. In addition, a groove part 55 is formed in the truncated cone part 532.

[0047] A guided cylinder 54 (for example, MGCLBN12-30 manufactured by MISUMI Corporation) is used for the moving part 51. The guided cylinder 54 is attached to a moving part attachment part 57 attached to the cylinder unit 20. In addition, the lock plate 52 is attached to a guide part 541 of the guided cylinder 54.

[0048] The lock plate 52 is located above the shaft slip-out prevention plate 26. The lock plate 52 is a plate made of aluminum. A through hole is formed in the lock plate 52 at a position where the shaft 23 passes. The diameter of the through hole at the position where the shaft 23 passes is larger than the diameter of the top of the truncated cone portion 532 of the lock bush 53 and smaller than the diameter of the connecting portion between the cylindrical portion 531 and the truncated cone portion 532.

[0049] A shaft lateral vibration prevention means 60 is attached to the cylinder unit 20. The shaft lateral vibration prevention means 60 is composed of a lateral vibration prevention plate 61, a lateral vibration prevention bush 62, and a support 63. The lateral vibration prevention plate 61 is fixed to the female thread side of one end of the support 63, and the shaft lateral vibration prevention means 60 is disposed on the tip end 230 side of the shaft 23 relative to the lock plate 52. A through hole is formed in the lateral vibration prevention plate 61 at the position of the shaft 23, and a lateral vibration prevention bush 62, within which the shaft 23 can slide, is attached, for example, a linear bush that uses the rolling of a steel ball to perform infinite linear motion. It should be noted that the lateral vibration prevention bush 62 is not limited to a linear bush.

[0050] A bowl-shaped polyurethane cushion material 25 is attached to the tip 230 of the shaft 23.

[0051] (Sitting position support device 11) Figure 8 is a perspective view of a seating support device using multiple mold-taking devices 10 of Figure 5. The seating support device 11 has a base frame 12 in the shape of a substantially rectangular frame, and is easily movable by casters 15 attached to the four corners of the base frame 12, and is fixedly set in an appropriate installation position by a fixing lifter 16. A seat frame 13 and a back frame 14 are formed on the base frame 12, and the angle of the seat frame 13 can be adjusted up and down on the back frame 14 side, and the angle of the back frame 14 can be adjusted in the front-to-back direction around the connecting part between the seat frame 13 and the back frame 14. Five mold-taking devices 10 of Figure 5 are attached to the seat frame 13, and eight mold-taking devices 10 are attached to the back frame 14.

[0052] In Figure 8, the part of the mold-taking device 10 on the back frame 14 side where the shaft 23 protrudes indicates the position of the shaft 23 when the shaft 23 is unlocked, and the other parts clearly show the initial position of the shaft 23 on the cylinder 22 closest to the common area 30.

[0053] Although not shown, a pressure sheet with a pressure sensor disposed at the position of each shaft 23 is placed on the molding device 10 of the seat frame 13 and on the molding device 10 of the back frame 14. Therefore, the number of pressure measurements in the seating position support device 11 in Figure 8 is 420 points on the seat frame 13 side and 672 points on the back frame 14 side. In addition, although not shown, the seating position support device 11 is also equipped with a position sensor that detects the protruding length of the shaft 23.

[0054] In FIG. 8, the air piping from the air compressor 43 used in the shaft drive means 40 to the air inlet 41 and the air outlet 42, the control system for transmitting and analyzing signals from the pressure sensor, etc., and the electrical wiring related to the locking means 50 are not shown.

[0055] (Method of taking a mold for the seating support device 11) Taking a mold for a person with a disability using the seating support device 11 is performed according to the following procedure. This mold taking is performed with the cooperation of multiple therapists who have specialized knowledge based on kinesiology, occupational therapy, ecological psychology, the Feldenkrais Method, etc. The mold taking method in this embodiment was performed with the cooperation of three therapists. It is desirable to proceed using not only data on the pressure (sitting pressure) on the shaft 23, but also medical data such as a stress check using saliva and heart rate measurement.

[0056] First, the weight of the subject is measured. Based on this weight value, the air pressure in the air piping from the air compressor 43 to the air inlet 41 is determined. Then, the locking means 50 is released. At this stage, the gasket 24 of the shaft 23 of the seating support device 11 is in contact with the shaft removal prevention plate 26.

[0057] Next, the subject is seated on the seating support device 11 of the seat frame 13 and leans back on the seating support device 11 of the back frame 14. Then, once the subject's body position is stabilized, the locking means 50 is operated to lock the shaft 23. In this position, the disabled person faces the seating support device 11 without any support. However, this position is extremely uncomfortable for disabled people whose body flexibility is reduced or whose body shape has changed compared to able-bodied people.

[0058] Next, the two therapists determine the position of the subject's body while paying attention to the position of the mold-taking device 10, touching the subject's body and listening to the subject's feelings of pain and discomfort, in order to find a body line that provides a sense of appropriate stability and a comfortable feeling, as well as an appropriate orientation relative to gravity. At this time, they unlock the mold-taking device 10 related to the part of the body that will be moved, and after the body is moved, they operate the locking means 50 again to lock the shaft 23 and check the pressure at that time. One therapist also supports the subject's head so that the posture can be maintained. By repeatedly unlocking and relocking the shaft 23 of the mold-taking device 10 related to the part that has been moved, the posture of the seat frame 13 and the back frame 14 in the seating support device 11 are sequentially positioned.

[0059] Furthermore, when taking the above mold, the angle of the seat and back is adjusted to position the ribs so that breathing is deeper and easier, and the abdominal muscles are kept at a length that makes them functional. In the seat, attention is paid to creating a support surface that keeps the pelvis, which acts as a base, in a position that can most lightly support the body, and in the back, to positioning the humerus in a functional position that maintains a good balance between the shoulder blades and collarbone.

[0060] After the measurement is completed, a comfortable, custom-made chair or wheelchair seating support part is produced for each individual person with a disability based on the position data of the shaft 23 and the pressure force on the shaft 23 (measurement results on the pressure sheet).

[0061] As described above in detail, according to this embodiment, the following effects can be obtained. (1) In this embodiment, the mold-taking device 10 includes a cylinder region 21 in which multiple columnar, tubular cylinders 22 are arranged in approximately parallel rows. This allows the cylinders 22 to be densely packed, enabling precise mold-taking. Furthermore, the mold-taking device 10 includes shafts 23 that are movable within the cylinders 22 and have portions that protrude from the cylinders 22. This allows mold-taking to be performed based on the tip positions of the multiple shafts 23 after mold-taking. Furthermore, the mold-taking device 10 includes a common region 30 that shares one end of all of the cylinders 22 in the cylinder region 21, and a shaft driving means 40 connected to the common region 30 that allows the shafts 23 to move. This allows the shafts to be easily moved to the "position where the pressure on all shafts is the same = the mold-taking position" during mold-taking. As a result, shaft movement control can be simplified, and mold-taking can be easily performed.

[0062] (2) In this embodiment, the mold-taking device 10 is equipped with a pressure measuring means for the shaft 23, so that the pressure before and after mold-taking measurement can be confirmed as actual measured values, and the pressure distribution can be measured over a wide range. Furthermore, based on the measured pressure values, it is possible to adjust, for example, the hardness of the cushion of a seat.

[0063] (3) In this embodiment, the shaft drive means 40 is operated by air pressure, and the common area 30 is formed with an air intake port 41 and an exhaust port 42, so that existing air compressors, regulators, valves, etc. can be used, and the mold-taking device 10 can be manufactured inexpensively.

[0064] (4) In this embodiment, a shaft slip-out prevention plate 26 is attached to the end opposite the common area 30 of the cylinder area 21, so that when the locking means 50 is released and the shaft 23 moves, the shaft 23 can be prevented from slipping out of the cylinder 22 even if, for example, there is no molding object abutting against the cushion material 25.

[0065] (5) In this embodiment, the locking means 50 includes a lock bushing 53 made of an elastic material disposed on the cylinder unit 20, the lock bushing 53 having a through hole through which the shaft 23 can pass and a groove 55, and a plate-like lock plate 52 having a through hole through which the shaft 23 can pass and disposed closer to the tip end 230 of the shaft 23 than the lock bushing 53. The movement of the lock plate 52 presses the lock bushing 53, and the groove 55 sandwiches the shaft 23 from both sides to stop the shaft movement. This allows the multiple shafts of the cylinder unit to be stopped collectively, and the stop can also be released collectively. As a result, the configuration can be simplified compared to stopping and releasing each shaft individually.

[0066] (6) In this embodiment, the guided cylinder 54, which is the moving part 51 that controls the movement of the lock plate 52, is attached to the side where the three cylinder units 20 are connected, so by making the mold-taking device 10 integrated with the cylinder unit 20, it is possible to manufacture mold-taking devices 10 of various sizes. In addition, connection of the control system is also easy.

[0067] (7) In this embodiment, the shaft lateral vibration prevention means 60, which is a plate-shaped lateral vibration prevention plate 61 formed with a plurality of through holes through which the shaft 23 can pass, and the lateral vibration prevention bushings 62 attached to the lateral vibration prevention plate 61 and through which the shaft 23 can slide, are attached to the cylinder unit 20 by attaching the lateral vibration prevention plate 61 to the support 63, so that lateral vibration prevention can be performed collectively for the plurality of shafts 23. Furthermore, the configuration can be simplified compared to preventing lateral vibration of the shafts 23 individually.

[0068] (8) In this embodiment, a bowl-shaped polyurethane cushioning material 25 is attached to the other end of the shaft 23, which protects the tip 230 of the shaft 23 while softening the impact on the pressure sensor 71 located above the shaft 23 and the body.

[0069] (9) The seating support device 11 of this embodiment is also equipped with a position sensor that detects the protruding length of the shaft 23, so that a comfortable, custom-made chair or wheelchair seating support portion can be created for each individual disabled person based on the position data of the shaft 23.

[0070] In addition to the aspects set forth in the claims, the present invention also includes the following aspects. In claim 4, the locking means comprises a lock bush formed of an elastic material arranged on the cylinder unit, having a through hole through which the shaft can pass and a groove, and a plate-shaped lock plate having a through hole through which the shaft can pass and arranged closer to the tip of the shaft than the lock bush, and the movement of the lock plate presses the lock bush, and the groove clamps the shaft on both sides to stop the movement of the shaft, as described in claim 3.

[0071] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the object of the present invention.

[0072] For example, in the above embodiment, a pressure sheet with a pressure sensor arranged at the position of each shaft 23 was placed on the molding device 10 of the seat frame 13 and on the molding device 10 of the back frame 14, but a planar pressure distribution measuring sheet may also be used.

[0073] For example, in the above embodiment, the seating support device 11 is equipped with a position sensor that detects the protruding length of the shaft 23, but instead of installing a position sensor, after the measurement is completed, the position of the tip 230 of the shaft 23 on the seat frame 13 side and the back frame 14 side of the seating support device 11 can be measured using, for example, a three-dimensional measuring machine, and based on the results, a comfortable, custom-made chair or wheelchair seating support part can be produced for each individual disabled person.

[0074] For example, in the above embodiment, the seating support device 11 is used to take a mold for a disabled person, but the seating support device 11 can also be used for a non-disabled person. In addition, for a non-disabled person, fewer therapists are required to cooperate than for a disabled person. [Explanation of symbols]

[0075] 10 Molding equipment 11 Sitting position support device 20 Cylinder unit 21 Cylinder Area 22 cylinders 23 Shaft 26 Shaft removal prevention plate 30 Common areas 40 Shaft drive means 50 Locking means 52 Lock plate 53 Rock Bush 54 Guided cylinder 55 Groove 56 Through hole 60 Shaft lateral vibration prevention means 61 Anti-lateral vibration plate 62 Anti-lateral vibration bush 63 Pillar 70 Pressure measuring means 71 Pressure Sensor

Claims

1. a cylinder region in which a plurality of cylindrical cylinders are formed substantially parallel to one another; a shaft movable within the cylinder and having a portion protruding from the cylinder; a common area in which all of the cylinders in the cylinder area are in communication with one end of each cylinder; a shaft drive means connected to the common area for moving the shaft; and a locking means that enables stopping and releasing the movement of the shaft within the cylinder.

2. The mold-taking device according to claim 1, further comprising a pressure measuring means for measuring the pressure on the shaft.

3. The shaft drive means is pneumatic; 3. The mold-taking device according to claim 1, wherein an air inlet and an air outlet are formed in the common area.

4. The locking means includes a lock bushing that is made of an elastic material and has a through hole through which the shaft can pass and a groove, and is disposed on the cylinder unit. a plate-shaped lock plate having a through hole through which the shaft can pass and disposed closer to the tip end of the shaft than the lock bush; 3. The mold-taking device according to claim 1, wherein the movement of the lock plate presses the lock bush, and the groove clamps the shaft from both sides to stop the movement of the shaft.

5. A mold-taking device as described in claim 4, wherein the moving part that controls the movement of the locking plate of the locking means is attached to both side surfaces of the cylinder unit, or, when multiple cylinder units are connected, to both side surfaces of the cylinder unit after connection.

6. The mold-taking device according to claim 1 or 2, further comprising a means for preventing lateral movement of the shaft.

7. The mold-taking device described in claim 6, wherein the shaft lateral vibration prevention means comprises a plate-shaped lateral vibration prevention plate having a through hole through which the shaft can pass, and a lateral vibration prevention bush attached to the lateral vibration prevention plate, through which the shaft can slide.

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