JPWO2006129364A1 - Pelvis holder - Google Patents

Abstract

It is an object of the present invention to provide a pelvis holder that can appropriately hold a pubic arch of a seated person and prevent distortion of the pubic arch and pelvis, and a method for manufacturing the same. In order to achieve this object, the convex part 2 corresponding to the pubic arch of the seated person and the rising part 3 raised so as to enclose the outer surface of the seated person's sciatus are formed on both sides of the convex part 2. The convex part 2 is formed by pushing a heated thermoplastic resin holder original plate 1 in accordance with the seated person's pubic arch, and the rising part 3 is formed in accordance with the outer surface of the seated person's sciatic bone. 1 is formed by starting up.

Description

  The present invention relates to a pelvis holder that is used as a seating surface of a chair, a cushion, or the like and supports a seated person's pelvis.

  In modern society, where people spend a lot of time sitting, it is particularly desirable to be able to sit correctly and reduce the burden on the buttocks and lower back so that they can spend comfortably and comfortably. To do so, it is important to hold the pelvis correctly when sitting.

  FIG. 3 is a front view showing the pelvis of an adult male. As shown in the figure, there is a pair of left and right sciatic bones A and A at the lower part of the pelvis, and there is a portion called a pubic arch B between the left and right sciatic bones A and A. The angle, height, etc. of the pubic arch B vary between men and women, but if the pubic arch B expands or distorts, the pelvis is distorted, making it less comfortable to sit on or making important decisions , Judgment, concentration, etc. are lost or various obstacles occur in the human body.

  Therefore, conventionally, various seating surfaces have been proposed. In Patent Document 1, a high-level support part that supports a seated person's sciatus is formed so that the seated pelvis can be always tilted forward. A cushion seat is disclosed.

However, the buttock support cushion seat of Patent Document 1 merely considers keeping the pelvis in a forward tilted state, and does not take into account the above-described spread and distortion of the pubic arch. Therefore, even if the young age with strong muscular strength is good, when the muscular strength of the buttocks falls, the lower ends a and a (see FIG. 3) of the left and right sciatic arches of the pubic arch hit the seat surface, and a large load is applied to the pubic arch. There is a problem that the user feels pain just sitting, and the pubic arch and thus the pelvis are distorted.
Japanese Utility Model Publication No. 5-74352

  The problem to be solved by the present invention is to provide a pelvis holder that can appropriately hold the pubic arch of a seated person and prevent distortion of the pubic arch and pelvis, and a method for manufacturing the same.

  The pelvis holder of the present invention is a pelvis holder for holding the pelvis of the seated person, and wraps the convex part corresponding to the pubic arch of the seated person and the outer surface of the seated person's sciata on both sides of the convex part. It has a start-up part that is started up.

  As described above, the upper body that has been conventionally received only by the lower end portion of the sciatic bone has the convex portion corresponding to the pubic arch of the occupant and the rising portion raised so as to wrap around the outer surface of the sciatic bone of the seated person. The load on the sciatic bone and the pubic arch can be reduced, the user can sit comfortably and the pelvis can be prevented from being distorted. As a result, the ideal condition where the pelvis stands normally can be maintained even when sitting down, the back muscles can be stretched and the chest can be projected forward, and the range of motion of the pelvis can be expanded. Then, even when standing, the posture in which the pelvis stands can be maintained, and the load on the upper body can be transmitted from the pelvis to the large hip, and the entire weight can be released without stepping on the ground with the soles.

  Such a pelvis holder is formed by forming a convex portion corresponding to the seated person's pubic arch by pressing a heated thermoplastic resin holder base plate into the seated person's pubic arch. It can be manufactured by forming a raised portion that wraps the outer surface of the sciatic bone of the seated person by raising the holder original plate in accordance with the side surface. Moreover, when forming the convex part corresponding to a seated person's pubic arch, it is preferable to use a spatula whose tip is a mountain shape to push the holding member original plate into the seated person's pubic arch.

  According to this manufacturing method, it is possible to easily obtain an appropriate pelvis holder that matches the shape of the pelvis such as the sciatic bone of the seated person (user) and the pubic arch.

  ADVANTAGE OF THE INVENTION According to this invention, a seated person's pubic arch can be hold | maintained appropriately, distortion of a pubic arch and a pelvis can be prevented, and various disorder | damage | failure generation accompanying the distortion of a pelvis can be prevented.

  Embodiments of the present invention will be described below based on the embodiments shown in the drawings.

  FIG. 1 is a perspective view showing an embodiment of the pelvis holder of the present invention. FIG. 2 is an explanatory view showing the manufacturing method.

  The pelvis holder shown in FIG. 1 is obtained by processing a holder original plate 1 made of a thermoplastic resin. A convex part 2 is formed in the central part, and rising parts 3 are formed on both sides thereof.

  As shown in FIG. 2, the convex portion 2 is a spatula 4 having a mountain shape at its tip, for example, after the thermoplastic base plate 1 is heated to about 70 ° C. by heating with hot water and then, as shown in FIG. It is formed by pushing in toward the pubic arch B side using the, and molding according to the shape of the pubic arch B.

  Further, the rising portions 3 on both sides are formed by raising both sides of the similarly heated holder original plate 1 along the outer shape line C of the buttocks along the outer surface of the ischia A.

  By forming the convex part 2 and the rising part 3 in this way, a pelvis holder that fits the angle and height of the pubic arch B of the seated person (user) and the roundness of the buttocks can be obtained. Therefore, by using this pelvis holder as a seating surface, the entire pelvis can be stably held during sitting, the upper body load can be reliably supported by the entire pelvis, and distortion of the pelvis can be prevented. Further, if a cushion material that absorbs impact is attached to the portion where the sciatica A is seated, the pelvis can be held more stably.

  INDUSTRIAL APPLICABILITY The present invention can be used as a seating surface of a chair, a cushion or the like alone or mounted on an existing seating surface.

It is a perspective view which shows one Example of the pelvis holder of this invention. It is explanatory drawing which shows the manufacturing method of the pelvis holder of this invention. It is a front view which shows the pelvis of an adult male.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Holding fixture original board 2 Convex part 3 Raising part 4 Spatula A Sciatic bone B Pubic arch C Outline line of buttocks

Claims (3)

  A pelvis holder for holding the pelvis of a seated person, and a raised part corresponding to the seated person's pubic arch and a rising part raised so as to wrap the outside surface of the seated person's sciata on both sides of the raised part Pelvic support having.   A method of manufacturing a pelvis holder for holding a seated person's pelvis, by pressing a heated thermoplastic resin holder base plate into the seated person's pubic arch to form a convex portion corresponding to the seated person's pubic arch. And a method of manufacturing a pelvis holder including a step of forming a rising portion that wraps the outer surface of the sciatic bone of the seated person by raising the holder original plate in accordance with the outer surface of the sciatic bone of the seated person .   The pelvis holder according to claim 2, wherein, in the step of forming a convex portion corresponding to the pubic arch of the seated person, the holding tool original plate is pushed into the pubic arch of the seated person using a spatula having a mountain shape at the tip. Method.

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