JP2015226745A - Fitting device of table for wheelchair and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting device of a wheelchair table being connectable to various types of wheelchairs, and manufacturing method thereof.SOLUTION: A wheelchair table 23 includes an arm 3 extending in a substantially vertical direction, and a table 2 provided at a tip end thereof. A fitting device 1 of the wheelchair table includes a wheelchair groove 5a for a frame 21 at a lateral face of a wheelchair 20, and an intermediate presser member 4 having an arm groove 5b for the arm 3. The intermediate presser member 4 causes presser members 6 to press the frame 21 and the arm 3 one surface for each respectively by passing bolts 9.

Description

      The present invention relates to a wheelchair table mounting apparatus and a method of manufacturing the same.

      As a conventional wheelchair table mounting device, for example, configurations disclosed in Patent Documents 1 and 2 are known. The wheelchair table mounting device of Patent Document 1 is placed on both armrests of a wheelchair and fixed with a fixing belt. According to this configuration, the table cannot be adjusted to the height of the wheelchair user, which is very inconvenient.

      On the other hand, the wheelchair table mounting apparatus of Patent Document 2 changes the height of the table by connecting a pipe holder to the frame on the side surface of the wheelchair and adjusting the connecting position of the arm using the pipe holder. Can do.

  JP 11-76311 A   Japanese Patent No. 3728933

        According to the configuration of Patent Document 2, there is a problem in that a pipe holder of a different type is prepared every time the pipe thickness of the wheelchair changes, and the inclination of the pipe holder cannot be adjusted when the frame of the wheelchair is inclined. Therefore, an object of the present invention is to provide a wheelchair table mounting device that can be connected to various types of wheelchairs while maintaining a good function as a table, and a method for manufacturing the same.

        In order to solve the above-mentioned problem, the first invention is for a wheelchair with respect to a frame 21 on a side surface of a wheelchair 20 in a wheelchair table 23 having a substantially vertically extending arm 3 and a table 2 provided at the tip of the arm 3. A wheelchair table mounting device comprising an intermediate pressing member 4 provided with a groove 5a and an arm groove 5b for the arm 3.

        The wheel mounting table mounting device according to the first invention is characterized in that the second invention comprises a wheelchair groove 5a and an arm groove 5b of the intermediate pressing member 4 provided with a V-shaped groove 5d and a trapezoidal groove 5e. It is.

        Moreover, 3rd invention was equipped with each pressing member 6 with respect to the groove | channel 5a for wheelchairs of the said intermediate | middle pressing member 4, and the groove | channel 5b for arms, It is for wheelchairs as described in 1st invention or 2nd invention characterized by the above-mentioned. It is a table mounting device.

        According to a fourth aspect of the present invention, the intermediate pressing member 4 includes a fixing ring 7 provided with a concave portion 8 and the arm 3 provided with a convex portion 7a. This is a wheelchair table mounting device.

        The fifth invention is characterized in that the pressing member 6 sandwiches the intermediate pressing member 4 and the center lines 10 of the pressing members 6 intersect each other. This is a table mounting device.

        Further, the fourth invention is a wheelchair 20 acquired by measuring a three-dimensional shape using a three-dimensional shape measuring instrument, a step of acquiring measurement data of the entire shape of the user when using the wheelchair 20, and the measurement data. And determining the inclination, width and depth data of the wheelchair groove 5a and arm groove 5b using the shape data of the wheelchair table 23, and the inclination and width of the wheelchair groove 5a and arm groove 5b. And manufacturing the wheelchair table mounting device, comprising the step of processing the wheelchair groove 5a and the arm groove 5b in the intermediate pressing member 4 using the depth data.

      Hereinafter, embodiments for carrying out the present invention will be described in detail. FIG. 1 shows a first embodiment of a mounting device 1 according to the present invention. FIG. 1 a is an external perspective view showing that the wheelchair table 23 and the wheelchair 20 are connected using the attachment device 1. FIG. 1b is an enlarged view of the mounting device 1 of FIG. 1a. FIG. 1c is an external perspective view of the mounting device 1 on the arm groove 5b side. FIG. 1d is an external perspective view of the attachment device 1 on the wheelchair groove 5a side. From FIG. 1 a, 1 b, 1 c, 1 d, the wheelchair table 23 is composed of an arm 3 extending in a substantially vertical direction and a table 2 provided at the tip of the arm 3. The attachment device 1 includes an intermediate pressing member 4 and pressing members 6 and 6. The intermediate pressing member 4 is provided with a wheelchair groove 5a for connecting to the frame 21 of the wheelchair 20 on one side, and the arm 3 on the opposite side. Arm groove 5b is provided. Further, the intermediate pressing member 4 presses the frame 21 and the arm 3 with the pressing member 6 one side each through a bolt 9. FIG. 1 e is a detailed view of the surface of the intermediate pressing member 4 provided with the grooves 5. As shown in FIG. 1e, the intermediate pressing member 4 is provided with four taps 9a so that the center lines 10 of the pressing members 6 intersect each other (the intersection is defined as an intersection A). The center line 12 of the groove 5 passes. Therefore, since the groove 5 can be processed in the range of the angle B from the center line 12 to the center line 12a, the intermediate pressing member 4 of the mounting device 1 corresponds to the inclination of the frame 21 of the wheelchair 20. it can. FIG. 1 f is a detailed view showing a difference in position of the pressing member 6. From FIG. 1f, since the center line 10 of the pressing member 6 intersects with the center line 10a of the pressing member 6, the frame 21 and the arm 3 can always be fixed at the central portion of the groove 5 and the fixing strength is increased.

      Next, FIG. 2 shows a second embodiment of the attachment device 1a according to the present invention. FIG. 2 a is an external perspective view showing that the wheelchair table 23 and the wheelchair 20 are connected using the attachment device 1 a. FIG. 2b is an enlarged view of the mounting device 1a of FIG. 2a. FIG. 2c is an external perspective view of the mounting device 1a on the arm groove 5b side. FIG. 2d is an external perspective view of the mounting device 1a on the wheelchair groove 5a side. FIG. 2 e is an external perspective view of the attachment device 1 a showing a state in which the fixing ring 7 is inserted into the recess 8. 2a, 2b, 2c, 2d, and 2e, the difference between the mounting device 1a of the second embodiment and the mounting device 1 of the first embodiment is that an intermediate pressing member 4 is provided with a recess 8 as an intermediate pressing member. 4a, and the fixing ring 7 provided with the convex portion 7a on the arm 3 is connected. FIG. 2 f is an external perspective view showing the connection between the fixing ring 7 and the arm 3. 2f shows that the arm 3 can be connected at an arbitrary position and orientation by tightening a holo set (not shown) of the fixing ring 7. FIG. As described above, since the fixing ring 7 can be fixed at any position and orientation of the arm 3, when the wheelchair table 23 is mounted, the arm 3 of the wheelchair table 23 is inserted into the mounting device 1a, and then the mounting device 1a The holding member 6 can be tightened, and both can be operated with one hand, improving convenience.

      Next, FIG. 3 shows a third embodiment of the attachment device 1b according to the present invention. FIG. 3 a is an external perspective view showing that the wheelchair table 23 and the wheelchair 20 are connected using the attachment device 1 b. FIG. 3b is an enlarged view of the mounting device 1b of FIG. 3a. FIG. 3c is an upper external perspective view of the attachment device 1b. FIG. 3d is a perspective view of the lower appearance of the attachment device 1b. 3a, 3b, 3c, and 3d, the difference between the attachment device 1b of the third embodiment and the attachment device 1 of the first embodiment is that the wheelchair groove 5a and the arm groove 5b are formed on one side of the intermediate pressing member 4b. Both are provided. From the above, it has become possible for the attachment device 1 b itself to reduce the distance that the wheelchair 20 protrudes from the side surface of the wheelchair 20 than the structure of the attachment device 1. Of course, the intermediate pressing member 4b can be connected to a fixing ring 7 (not shown) by providing the recess 8.

      Next, FIG. 4 shows the shape of the groove 5 that connects the arm 3 and the frame 21 of the mounting device 1, 1a, 1b according to the present invention. FIG. 4a is a detailed view showing the U-shaped groove 5c. FIG. 4b is a detailed view showing the V-shaped groove 5d. FIG. 4c is a detailed view showing the trapezoidal groove 5e. When the pipe of the arm 3 and the frame 21 connected to the U-shaped groove 5c is rotated by the U-shaped groove 5c shown in FIG. 4A, the pipe is easily damaged at the U-shaped corner. However, even if the V-shaped groove 5d shown in FIG. 4b and the trapezoidal groove 5e shown in FIG. 4c rotate the pipe of the arm 3 and the frame 21 connected to the groove Vd, the trapezoidal groove 5e, the pipe Is in contact with the surface and has the effect of being hard to scratch.

      Next, the manufacturing method of the attachment apparatus 1 concerning this invention is shown. First, the wheelchair 20 and the user's shape when using the wheelchair 20 are three-dimensionally measured using a three-dimensional shape measuring device to obtain measurement data. The above-mentioned process is the same as a three-dimensional shape measuring instrument (same as a three-dimensional scanner, a device that calculates a three-dimensional distance using a laser such as visible light and infrared light, and calculates a three-dimensional distance using a plurality of images. The device and the like are used to measure the whole and the entire circumference of the user when using the wheelchair and the wheelchair to obtain three-dimensional measurement data. Next, since the positions of the frame 21 and the arm 3 of the wheelchair 20 can be determined on the three-dimensional CAD based on the measurement data and the generated three-dimensional data of the shape of the wheelchair table 23, the wheelchair of the intermediate pressing members 4 and 4a can be determined. Machining data on the inclination, width, and depth of the groove 5a and arm groove 5b can be determined. Therefore, the wheelchair groove 5a and the arm groove 5b can be processed in the intermediate pressing members 4 and 4a using the processing data. Further, since the height of the table 2 can be determined on the three-dimensional CAD based on the measurement data and the generated three-dimensional data of the shape of the wheelchair table 23, the position of the fixing ring 7 can be accurately connected to the arm 3. . Conventionally, it took a very long time to measure the position of the wheelchair table 23 by using a measure or a measuring jig, so it took a very long time. Measurement became possible.

Effect of the invention

ADVANTAGE OF THE INVENTION According to this invention, the table attachment apparatus for wheelchairs which can be connected to various wheelchairs, and its manufacturing method can be provided, maintaining the function as a table favorably.

1st embodiment of the attachment apparatus 1 concerning this invention is shown. (A) is an external appearance perspective view which shows having connected the wheelchair table 23 and the wheelchair 20 using the attachment apparatus 1. FIG. (B) is an enlarged view of the mounting apparatus 1 of FIG. 1a. (C) is an external perspective view of the attachment device 1 on the arm groove 5b side. (D) is an external perspective view of the attachment device 1 on the wheelchair groove 5a side. (E) is a detailed view of the surface of the intermediate pressing member 4 provided with the groove 5. (F) is a detail view showing the difference in position of the pressing member 6. 2nd embodiment of the attachment apparatus 1a concerning this invention is shown. (A) is an external appearance perspective view which shows having connected the wheelchair table 23 and the wheelchair 20 using the attachment apparatus 1a. (B) is an enlarged view of the mounting apparatus 1a of FIG. 2a. (C) is an external perspective view of the mounting device 1a on the arm groove 5b side. (D) is an external perspective view of the attachment device 1a on the wheelchair groove 5a side. (E) is an external perspective view of the attachment device 1 a showing a state in which the fixing ring 7 is inserted into the recess 8. (F) is an external perspective view showing the connection between the fixing ring 7 and the arm 3. 3rd embodiment of the attachment apparatus 1b concerning this invention is shown. (A) is an external appearance perspective view which shows having connected the wheelchair table 23 and the wheelchair 20 using the attachment apparatus 1b. (B) is an enlarged view of the mounting apparatus 1b of FIG. 3a. (C) is an upper external perspective view of the attachment device 1a. (D) is a downward external perspective view of the attachment device 1b. The shape of the groove | channel 5 concerning this invention is shown. (A) is detail drawing which shows the U-shaped groove | channel 5c. (B) is a detailed view showing a V-shaped groove 5d. (C) is a detailed view showing a trapezoidal groove 5e.

1 mounting device 1a mounting device 1b mounting device 2 table 3 arm 4 intermediate pressing member 4a intermediate pressing member 4b intermediate pressing member 5 groove 5a wheelchair groove 5b arm groove 5c U-shaped groove 5d V-shaped groove 5e trapezoidal groove 6 pressing member 7 Fixing ring 7a Convex part 8 Concave part 9 Bolt 9a Tap 10 Center line 10a Center line 12 Center line 12a Center line 20 Wheelchair 21 Frame 23 Wheelchair table

Claims (6)

        A wheelchair groove for a frame (21) on a side surface of a wheelchair (20) in a wheelchair table (23) having an arm (3) extending in a substantially vertical direction and a table (2) at the tip of the arm (3) A wheelchair table mounting device comprising an intermediate pressing member (4) provided with an arm groove (5b) for (5a) and the arm (3).         The wheelchair groove (5a) and arm groove (5b) of the intermediate pressing member (4) are provided with a V-shaped groove (5d) and a trapezoidal groove (5e) according to claim 1, Table mounting device.         The wheelchair according to claim 1 or 2, further comprising a pressing member (6) for the wheelchair groove (5a) and the arm groove (5b) of the intermediate pressing member (4). Table mounting device.         The intermediate pressing member (4) is provided with a recess (8), and the arm (3) is provided with a fixing ring (7) provided with a protrusion (7a). The wheelchair table mounting device described in 1.         The said pressing member (6) pinches | interposes the said intermediate pressing member (4) mutually, The centerline (10) of each this pressing member (6) cross | intersects each other, The Claim 1 to Claim 4 characterized by the above-mentioned. Wheelchair table mounting device.         A wheelchair (20) acquired by measuring a three-dimensional shape using a three-dimensional shape measuring instrument, a step of acquiring measurement data of the entire shape of the user when using the wheelchair (20), the measurement data and the wheelchair A step of determining tilt, width and depth data of the wheelchair groove (5a) and the arm groove (5b) using the shape data of the table (23), the wheelchair groove (5a) and the arm groove ( 5b), using the data of the inclination, the width and the depth, and processing the wheelchair groove (5a) and the arm groove (5b) in the intermediate pressing member (4). Manufacturing method of table mounting apparatus.