JP5695265B1 - Seat cushion - Google Patents

Abstract

[PROBLEMS] To provide a comfortable sitting comfort with a simple structure as much as possible, and to reduce pain caused by pressure generated around a sciatic tubercle portion of a hip. A seat cushion 1 for receiving a buttocks of a seated person covering a bottom cushion material 4 and an upper cushion material 3 with a skin material 2, the bottom cushion material 4 being harder than the upper cushion material 3 and having a bottom The side cushion member 4 is formed with a plurality of elongated slits 5 in parallel at the portion where the ischium tubercle portion of the buttocks and the periphery thereof are located when seated, and is the same as the upper cushion member 3 or harder than the upper cushion member A long insertion cushion material 6 that is softer than the cushion material 4 is fitted and fixed to the slit 5 of the bottom cushion material 4. [Selection] Figure 1

Description

  The present invention relates to a cushion for a seat surface that receives a buttocks of a seated person.

  Conventionally, a cushion for a seating surface is provided with a comfortable sitting comfort by laminating a plurality of cushioning materials having different hardness and thickness on the seating surface that receives the buttocks of a seated person (for example, Patent Document 1), By providing a recess in the rear edge of the cushion material to accommodate the sciatic nodule portion of the seated buttock, disperse the concentration of body pressure on the sciatic nodule portion to the flat part of the buttocks and the back side of the thigh (For example, patent document 2) etc. which are hard to feel pain are known.

JP 2002-165676 A JP 2003-394 A

  However, as the sitting time on the cushion for the sitting surface becomes longer, the sciatic tubercle part of the buttocks is insensitive to compression, but the peripheral part of the sciatic tubercle part is more sensitive to compression than the sciatic tubercle part, Pain is felt around the sciatic tuberosity of the buttocks. In addition, if the concentration of body pressure on the sciatic nodule of the buttocks is distributed to the flat part of the buttocks and the back of the thigh, the pain around the periphery of the ischial nodule can be felt, or the knee on the back of the thigh Since blood vessels and nerves are close to the surface of the skin in the near part, blood circulation is easily caused by dispersing body pressure.

  An object of the present invention is to provide a seat cushion that catches the buttocks of a seated person and provides a comfortable sitting comfort with a simple configuration as much as possible, and to reduce pain caused by pressure generated around the sciatic nodule portion of the buttocks.

  As a means for solving the above-mentioned problem, a cushion for a seating surface that catches a seated person's buttocks covering the bottom cushion material and the upper cushion material with a skin material, the bottom cushion material being harder than the upper cushion material and having a bottom The side cushion material is formed with a plurality of long slits in parallel at the portion where the hip bone is located and the periphery of the hip cushion when sitting, and is the same quality as the upper cushion material or harder than the upper cushion material and softer than the bottom cushion material A long insertion cushion material is fitted and fixed in the slit of the bottom cushion material.

  In the area where a plurality of slits are formed in parallel, the sciatic nodule portion of the seated person's buttocks and the portion where the periphery is positioned can be provided as one region at the time of sitting, but they are provided as a pair of left and right at intervals You can also.

  According to the present invention, it is possible to provide a comfortable sitting comfort with a simple configuration as much as possible, and therefore it is possible to reduce the manufacturing cost of the cushion for the seat surface that catches the buttocks of the seated person. In addition, a plurality of long insertion cushion materials having different hardnesses from the bottom cushion material are fixedly fitted in parallel to the bottom cushion material of the hip bone and the portion where the periphery is located. When the length becomes longer, a portion that feels pain due to pressure and a portion that does not feel are alternately generated around the sciatic nodule portion of the buttocks. When you feel pain due to pressure around the sciatic tubercle part of the buttocks, place the part where you feel pain above the bottom cushion material that is softer than the bottom cushion material that is fitted and fixed to the bottom cushion material By moving it, pain due to compression can be reduced.

It is a perspective view of the cushion for seating surfaces which shows one Embodiment of this invention. (A) is a partially cutaway external perspective view, and (B) is a perspective view of a bottom cushion material. It is CC sectional view taken on the line in FIG. It is a perspective view of the cushion for seat surfaces which shows another embodiment of this invention. (A) is a partially cutaway external perspective view, and (B) is a perspective view of a bottom cushion material. It is the DD sectional view taken on the line in FIG. 3 (B). It is a perspective view of the cushion for seating surfaces which shows other embodiment of this invention. (A) is a partially cutaway external perspective view, and (B) is a perspective view of a bottom cushion material. It is the EE sectional view taken on the line in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

FIG. 1 shows an embodiment of the present invention, in which a bottom cushion material 4 and an upper cushion material 3 overlaid on the bottom cushion material 4 are covered with a skin material 2 covering the bottom cushion material 4 and the upper cushion material 3. The seat cushion is a rectangular seat cushion 1 that receives the buttocks of the seated person, the bottom cushion material 4 is harder than the upper cushion material 3, and the bottom cushion material 4 A plurality of long slits 5 are formed so as to be elliptical parallel to the front-rear direction, with the portion where the ischial nodule portion and the peripheral portion thereof are located as one region, and the same or upper side as the upper cushion material 3 A long insertion cushion material 6 that is harder than the cushion material 3 and softer than the bottom cushion material 4 is fitted and fixed in a slit 5 formed as one region of the bottom cushion material 4. .
FIG. 2 is a cross-sectional view taken along line CC in FIG. When you feel pain due to pressure on the periphery of the sciatic tubercle part of the buttocks due to longer sitting time, move the seating position forward or backward, and fit the painful part into the bottom cushion 4 The pain caused by the compression can be reduced by moving the inserted cushion material 6 having a longer shape that is softer than the bottom cushion material 4.

FIG. 3 shows another embodiment of the present invention, in which the upper cushion material 3 overlaid on the bottom cushion material 4 and the bottom cushion material 4 is covered with the skin material 2 that covers the bottom cushion material 4 and the upper cushion material 3. The seat cushion 1 has an elliptical seating surface shape for receiving the buttocks of the seated person, the bottom cushion material 4 is harder than the upper cushion material 3, and the bottom cushion material 4 has a buttocks when seated. A plurality of elongated slits 5 are formed in parallel with each other in the left-right direction with a space between the left and right ischial nodule parts and the part where the peripheral part is located. An elongated cushioning material 6 having the same quality as the cushioning material 3 or harder than the upper cushioning material 3 and softer than the bottom cushioning material 4 is formed as a pair of left and right cushioning materials 4 at intervals. Is fitted fixed to the slit 5 that.
FIG. 4 is a cross-sectional view taken along the line DD in FIG. If you feel pain due to pressure on the periphery of the sciatic tuberous part of the buttocks due to the longer sitting time, move the seating position to the left or right and insert the pain-sensing part into the bottom cushion 4 The pain due to the compression can be reduced by moving the insertion cushion material 6 having a longer shape that is softer than the bottom cushion material 4 that is fixed.

FIG. 5 shows another embodiment of the present invention, in which the upper cushion material 3 stacked on the bottom cushion material 4 and the bottom cushion material 4 is covered with the skin material 2 covering the bottom cushion material 4 and the upper cushion material 3. The seat cushion is a octagonal seat cushion 1 for receiving the buttocks of the seated person, the bottom cushion material 4 is harder than the upper cushion material 3, and the bottom cushion material 4 has a buttocks when seated. The long slit 5 is formed in an octagonal shape in parallel with the front-rear direction, with the region excluding the outer peripheral edge of the bottom cushion material including the left and right ischial nodule portions and the portion where the periphery is located as one region A plurality of insertion cushion materials 6 having the same shape as the upper cushion material 3 or harder than the upper cushion material 3 and softer than the bottom cushion material 4 are formed in one area of the bottom cushion material 4. Is fitted fixed to the slits 5 formed as.
FIG. 6 is a cross-sectional view taken along the line EE in FIG. When you feel pain due to pressure on the periphery of the sciatic tubercle part of the buttocks due to longer sitting time, move the seating position forward or backward, and fit the painful part into the bottom cushion 4 In addition to being moved above the insertion cushion material 6 having a long shape that is softer than the bottom cushion material 4 that has been placed, a part of the portion that feels pain can be obtained by rotating the cushion 1 for the seating surface while sitting. Is moved above the insertion cushion material 6 having a longer shape and softer than the bottom cushion material 4 fitted and fixed to the bottom cushion material 4, so that pain due to compression can be reduced.

DESCRIPTION OF SYMBOLS 1 Seat cushion 2 Skin material 3 Upper cushion material 4 Bottom cushion material 5 Slit 6 Insertion cushion material

Claims (2)

  A cushion for a seating surface that catches a seated person's buttocks composed of a bottom cushion material, an upper cushion material that is overlaid on the bottom cushion material, and a skin material that covers the bottom cushion material and the upper cushion material. The bottom cushion material is harder than the upper cushion material, and the bottom cushion material is formed with a plurality of long slits in parallel at the portion where the ischium nodule portion of the buttocks and the periphery thereof are located when seated. The seating surface is characterized in that an elongated cushioning material of the same quality as the upper cushioning material or harder than the upper cushioning material and softer than the bottom cushioning material is fitted and fixed in the slit of the bottom cushioning material. Cushion.   The cushion for a seating surface according to claim 1, wherein a plurality of the slits are formed in parallel in a pair of left and right regions.

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