JP6596265B2 - Sitting cushion - Google Patents

Description

  The present invention relates to a shock absorber used for a seat portion of a sitting tool including a seat portion and a backrest portion.

  Conventionally, the buffer used for the seat part of the sitting tool provided with a seat part and a backrest part is known (for example, refer to patent documents 1).

  In the thing of patent document 1, the adjustment hole is provided in the lower surface of the buffer body. Of the adjustment holes, the adjustment hole at the position corresponding to the sciatic bone of the person sitting in the seat is the large diameter, the adjustment hole at the position corresponding to the sacrum and thigh is the medium diameter smaller than the large diameter, The adjustment hole located in the circumference | surroundings is formed in the small diameter smaller than a medium diameter.

Japanese Patent No. 4102117

  Conventional shock absorbers are effective when the seated person normally sits on the seat, but when the sitting tool has a backrest, the seated person sits on the seatback as a result of the seated person sitting on the backrest. The position in contact with the part may gradually shift.

  If the person who sits does not normally sit on the seat, the effect of the shock absorber will be diminished.

  In view of the above, an object of the present invention is to provide a cushion for a sitting tool that allows a seated person to comfortably sit on the seat even if the seated person rests on the backrest.

[1] To achieve the above object, the present invention provides:
A shock absorber used for a seat part of a sitting tool including a seat part and a backrest part,
Positioned between the sciatic bone and knee of the person sitting on the seat, there is a non-slip part that extends to the left and right,
The buffer is
Molded with one material containing foam,
A plurality of adjustment holes are provided in other parts except the anti-slip part, which are opened on the lower surface and the upper part is closed, and for adjusting the amount of sinking when the seated person sits down,
The non-slip portion is formed so that the amount of subsidence when a person sitting is smaller than the other portion of the seat portion because the adjustment hole is not provided. .

According to the present invention, even if the seated person leans on the backrest part and contacts the seated part of the seated person, the seated person's sciatus and its periphery are blocked by the anti-slip part. As a result, the seated person can continue to contact the cushioning body of the seat at an appropriate position, and the seated person can comfortably sit on the sitting tool.
In addition, the present invention provides a non-slip portion for adjusting the amount of sinking when a seated person sits, which is molded from one material contained in a foam material, opened on the lower surface, and closed on the upper side. A plurality of other portions are provided except for.
According to such a configuration, since the adjustment hole is not opened on the upper surface, even if a seated person sits on the seat, it is difficult to recognize the presence of the adjustment hole, and it is possible to sit comfortably. Moreover, since the adjustment hole is opened on the lower surface of the buffer body, the adjustment hole can be easily formed as compared with the case where both the upper and lower surfaces are closed.

  [2] Moreover, it is preferable that the anti-slip | skid part of this invention is comprised so that the center may be located in the foremost and both right and left ends may be located in the back most.

  By configuring in this way, the base line of the foot of the person sitting on the sitting tool can be made to correspond to the shape of the anti-slip part, and the seated person leans against the backrest part and deviates from the appropriate position of the seat part. When trying to do so, it is possible to receive the sciatic bone and the surrounding area of the person who sits in a relatively wide range of the anti-slip portion. As a result, the feeling of contact with the anti-slip part felt by the sitting person is not localized but can be relatively dispersed, and the uncomfortable feeling of the non-slip part that the sitting person may feel can be alleviated. .

  [3] Further, in the present invention, the anti-slip portion can be formed in a band shape and can be formed in a V shape or a U shape.

  By configuring the anti-slip part in this way, it corresponds to the line of the base of the foot of the person sitting on the sitting tool (the boundary line between the waist and the base of the foot) and the V-shaped or U-shaped of the anti-slip part When the seated person leans on the backrest and tries to deviate from the appropriate position of the seated part, the antiskid part can catch the seated bone and the periphery of the seated person in a relatively wide range.

  Further, the feeling of contact with the anti-slip part felt by the sitting person can be relatively dispersed rather than locally, and the uncomfortable feeling of the non-slip part that the sitting person may feel can be alleviated.

The partial cross section figure which shows from the side the sitting tool which used the buffer of embodiment of this invention for the seat part. The top view which shows the buffer body of this embodiment from upper direction.

  As shown in FIG. 1, a sitting tool 1 according to an embodiment of the present invention includes a substantially rectangular seat 2, a backrest 3 that rises upward from the rear of the seat 2, and a bottom surface of the seat 2. A leg portion 4 that extends downward and supports the seat portion 2 is provided. In FIG. 1, the upper part of the backrest part 3 and the lower part of the leg part 4 are omitted.

  The seat portion 2 includes a buffer body 5 formed of urethane, which is one material having a foam material built in on the upper surface thereof. The buffer body 5 is also called a mattress or a cushion.

  As shown by hatching in FIG. 2, the shock absorber 5 is provided with a non-slip portion 6 that extends in a V-shape or a U-shape in the left-right direction while being curved so that the center portion is located at the foremost position. The buffer body 5 is provided with a plurality of adjustment holes 7 which are open on the lower surface and closed upward.

  The adjustment hole 7 is not provided in the anti-slip part 6 and is arranged so as to avoid the anti-slip part 6. That is, by not providing the adjustment hole 7, the anti-slip portion 6 is formed in which the sinking amount is smaller than that of the other portions. In the present embodiment, the anti-slip portion 6 has a width in the front-rear direction set to 50 mm. The adjustment hole 7 includes a large-diameter large-diameter adjustment hole 7H having a large depth and a small-diameter small-diameter adjustment hole 7L having a smaller depth than the large-diameter adjustment hole 7H. .

  Further, as is apparent from the shock absorber 5 shown in cross section in FIG. 1, the adjustment hole 7 has a corrugated hole shape that is smoothly curved so that the diameter gradually decreases toward the back (upward). .

  Moreover, as shown in FIG. 1, the anti-slip | skid part 6 is arrange | positioned so that it may be located between the sciatic bone X of the person A who sits on the sitting tool 1, and the knee Y, and may be extended right and left. As a result, the saddle portion of the seated person A sinks deeply into the buffer body 5 with the anti-slip portion 6 as a fulcrum, and the seated person A can sit on the seat portion 2 at an appropriate position.

  Furthermore, the inventor installed a pressure sensor in the seat part 2 by experiment, and the pressure distribution of the seat tool 1 with the anti-slip part 6 of this embodiment and the seat tool without the anti-slip part as a comparative example Compared. As a result, the seat 1 provided with the anti-slip portion 6 according to the present embodiment is more comfortable than the seat without the anti-slip portion of the comparative example, and the pressure of the seat portion corresponding to the sciatic bone of the seated person and the periphery thereof. Was detected high. Also from this, according to the sitting tool 1 of this embodiment, it can be seen that the buttocks of the sitting person A are deeply sinking into the buffer body 5.

  Further, as shown in FIG. 2, a small-diameter adjustment hole 7 </ b> L and a large-diameter adjustment hole 7 </ b> H are arranged in this order in front of the anti-slip portion 6. Thereby, it can prevent that the person A who sits down feels uncomfortable pressure from the buffer body 5 to the thigh at the front edge part of the seat part 2.

  According to the buffer body 5 of the sitting tool 1 of the present embodiment, even if the position where the seated person A leans against the backrest part 3 and contacts the seated part 2 of the seated person A is shifted, the sitting bone X of the seated person A and The periphery thereof is blocked by the anti-slip portion 6. As a result, the seated person A can continue to contact the buffer body 5 of the seat portion 2 at an appropriate position, and the seated person A can comfortably sit on the sitting tool 1.

  Further, the anti-slip portion 6 of the present embodiment is configured such that the center thereof is positioned forward and the left and right ends are positioned rearmost. By configuring the non-slip portion 6 in this way, the line of the base of the foot of the person A sitting on the sitting tool 1 (the boundary line between the waist and the base of the foot) corresponds to the V shape of the anti-slip portion 6. When the sitting person A leans on the backrest part 3 and tries to deviate from an appropriate position of the sitting part 2, the antiskid part 6 sits in a relatively wide range and sits around the sciatic bone X of the person A. I can take it. As a result, the feeling of contact with the non-slip part 6 felt by the person A can be dispersed rather than locally, and the uncomfortable feeling of the anti-slip part 6 that the person A may feel may be mitigated. Can be made.

  In addition, the shock absorber 5 of this embodiment is formed of a single material containing a foam material, opened on the lower surface and closed on the upper side, and an adjustment hole for adjusting the amount of subsidence is provided for the anti-slip portion. A plurality of other portions are provided.

  With this configuration, since the adjustment hole 7 is not opened on the upper surface, it is difficult to recognize the presence of the adjustment hole 7 even if the seated person A sits on the seat 2, and the seat 2 can be comfortably seated. Moreover, since the adjustment hole 7 is opened in the lower surface of the buffer 5, formation of the adjustment hole 7 is easy compared with the case where both upper and lower surfaces are obstruct | occluded.

  In addition, the leg part 4 does not need to be provided, and the cushioning body of the present invention can also be used for a sitting tool in which the seat part 2 is directly arranged on the floor.

  Further, the anti-slip portions do not necessarily have to be all continuous, and for example, the anti-slip portions may be divided at the center, and a pair of divided anti-slip portions may be provided on the left and right.

Further, in the present embodiment, the description has been given using the buffer body formed of the material containing the foam material, but the buffer body of the present invention is not limited to this and may be configured by other things .

  Moreover, the anti-slip | skid part of this invention is not restricted to V shape, For example, even if it is U shape, the linear shape extended straightly right and left may be sufficient.

DESCRIPTION OF SYMBOLS 1 Seating tool 2 Seat part 3 Backrest part 4 Leg part 5 Buffer body 6 Anti-slip part 7 Adjustment hole

Claims (3)

A shock absorber used for a seat part of a sitting tool including a seat part and a backrest part,
Positioned between the sciatic bone and knee of the person sitting on the seat, there is a non-slip part that extends to the left and right,
The buffer is
Molded with one material containing foam,
A plurality of adjustment holes are provided in other parts except the anti-slip part, which are opened on the lower surface and the upper part is closed, and for adjusting the amount of sinking when the seated person sits down ,
The non-slip portion is formed so that the amount of subsidence when a person sitting is smaller than the other portion of the seat portion because the adjustment hole is not provided. Sitting cushion. The cushion for the sitting tool according to claim 1,
The cushioning body for a seating tool, wherein the anti-slip portion is configured such that the center thereof is located at the frontmost position and the left and right ends are located at the rearmost position. The cushion for the sitting tool according to claim 2,
The cushioning body for a sitting tool, wherein the anti-slip portion has a strip shape and is V-shaped or U-shaped.