JP3204798U - cushion - Google Patents

Abstract

To provide a cushion capable of complementing the shape of the backrest of a chair so that the contact surface to the back is more suitable for the shape of the back and making it easy to return the tilted posture to the median position. A cushion 1 includes a valve 12 that regulates the flow of fluid, an inner cover that is hermetically sealed so as to prevent internal fluid from leaking by a material that does not allow fluid to permeate, and a sponge that is provided inside the inner cover. A pair of left and right inner members, a first recess 13 that is formed in a vertically long side view in a vertical direction, and a front view is recessed downward in the upper long side of a horizontally long rectangle with rounded vertices; and A cover 11 that has a left-right symmetric and vertically asymmetrical shape having a second recess 14 that is recessed upward on the lower long side, has a hole 11H through which the valve 12 of the internal member passes, and the internal member is disposed inside. And comprising. [Selection] Figure 1

Description

  The present invention relates to a cushion.

  If you sit on an office chair or car seat for a long time, your back may hurt. In particular, back pain occurs when the shape of the back of the chair or seat does not match the shape of the back.

  However, if the cushion is sandwiched between the back and the backrest, the back and lower back may hurt if the thickness of the cushion is not appropriate. Humans cannot take the same posture for a long time, and in order to sit comfortably, it is important to change the state of the muscles that are tense according to the posture and the situation. Therefore, the cushion needs to have a structure capable of adjusting the thickness.

  In this regard, the front view has a semicircular shape, the cross section is wedge-shaped, a sponge is placed inside a bag cover formed of a material that does not allow air or water to pass through, and the nozzle of the bag cover is provided with a nozzle provided on the bag cover. Cushions that can adjust the amount of air and water inside have been proposed.

  However, depending on this technique, since the cross section is wedge-shaped, if this cushion is disposed between the back and the backrest, the back is tilted, and the back and waist become painful due to prolonged use.

JP-A-10-85083

  The problem to be solved by the present invention is to complement the shape of the back of the chair, making the contact surface to the back more suitable for the shape of the back, and making it easy to return the tilted posture to the middle position Is to provide a cushion.

  In order to solve the above-described problems, the present invention provides a valve that regulates the flow of fluid, an inner cover that is sealed so that the fluid does not leak through the valve and a material that does not allow the fluid to permeate, and an interior of the inner cover. A pair of left and right internal members provided with a sponge and a longitudinal side view that is long and flat in a vertical direction, and a front view that is recessed downward on the upper long side of a horizontally long rectangle with rounded vertices. It has a left-right symmetric and vertically asymmetrical shape having a first recess and a second recess recessed upward on the lower long side, and has a hole through which the valve of the inner member passes, and the inner member is disposed inside And a cover.

  According to the present invention, a cushion capable of complementing the shape of the back of the chair, making the contact surface with the back more suitable for the shape of the back, and making it easy to return the tilted posture to the middle position is provided. can do.

The front view of the cushion which concerns on one Embodiment of this invention. The AA sectional view taken on the line of the cushion shown in FIG. The rear view of the cushion of FIG. The front view of an internal member. The figure which shows the example of the use condition of a cushion.

  Hereinafter, a cushion 1 according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view of the cushion 1, and FIG. 2 is a sectional view taken along the line AA of the cushion 1 shown in FIG. As shown in FIG.1 and FIG.2, the cushion 1 is provided with the cover 11, the internal member 2, and the mesh part 11M.

  The cover 11 is formed in a vertically long side view (AA arrow in FIG. 1) and is flat in the vertical direction, and the front view is recessed first on the upper long side of a horizontally long rectangle with rounded vertices. It has a left-right symmetric shape having a recess 13 and a second recess 14 that is recessed upward on the lower long side. The cover 11 further has a hole 11H through which the valve 12 of the internal member 2 is passed.

  The recess depth of the second recess 14 is deeper than the recess depth of the first recess 13. That is, the cover 11 of the cushion 1 is bilaterally symmetric but asymmetrical in the vertical direction.

  The internal member 2 has a valve 12 that regulates the entry and exit of fluids such as air or water, and a shape that bisects the shape of the cover 11 in the central portion in the lateral direction. An internal cover 21 hermetically sealed so as not to leak and a sponge 22 such as a foam provided inside the internal cover 21 are provided.

  The inner member 2 has a symmetrical shape. One internal member 2 is arranged in each of the left cover 11L and the right cover 11R of the cover 11 one by one.

  The inner cover 21 is formed of a flexible resin, rubber, or a material obtained by combining these and fibers.

  When the valve 12 is opened, the fluid inside the inner cover 21 can flow in and out, and when the valve 12 is closed, the inside and the outside of the inner cover 21 are hermetically shut off.

  The mesh portion 11 </ b> M covers the entire surface in contact with the back, which is the front surface of the cover 11.

  The sponge 22 is formed by, for example, foaming a flexible resin such as urethane, a cotton-like material made from natural materials including cotton and sponge, and tangling flexible resin threads. One or more types can be selected and used from those prepared and porous gels. The sponge 22 is elastically deformed when a force is applied, and is restored to its original shape when the application of the force is stopped.

  When the user wants to reduce the thickness of the cushion 1, the user first releases the valve 12 and then presses the cushion 1 with a hand or the like to discharge the fluid inside the sponge 22 from the inner cover 21. Then, the valve 12 is closed while pressing the cushion 1.

  When the user wants to return the thickness of the cushion 1 to the original thickness, the user opens the valve 12 without pressing the cushion 1. The sponge 22 returns to its original shape by the restoring force of the sponge 22, and the cushion 1 returns to its original thickness.

  Since the cushion 1 has two independent internal members 2, the user can adjust the thickness separately for the left side and the right side of the cushion 1.

  FIG. 3 is a rear view of the cushion 1. 3A is a view showing a state in which the right belt 18A and the left belt 18B are fastened by the fastener 17, and FIG. 3B is a state in which the fastener 17 is removed and the right belt 18A and the left belt 18B are removed. FIG. FIG. 4 is a front view of the internal member 2, and FIG. 5 is a diagram showing an example of the usage state of the cushion 1.

  As shown in FIG. 3, the cushion 1 has a right connecting portion 18R that connects the end portion of the right belt 18A to the cover 11 at the right end, and a left connecting portion 18L that connects the end portion of the left belt 18B to the cover 11 at the left end. A left belt 18B having one end connected to the left connecting portion 18L, a right belt 18A having one end connected to the right connecting portion 18R, and the left belt 18B and the other end of the right belt 18A. And the right belt 18A, a left anti-slip portion 16L provided long in the vertical direction at the center of the back surface of the left cover 11L, and a long length in the vertical direction at the center of the back surface of the right cover 11R. Right slip prevention part 16R.

  The fastener 17 may be anything as long as it connects the left belt 18B and the right belt 18A. For example, the fastener 17 may be fastened by pushing one fastener into the other fastener, and the fastening may be released by pressing the left and right ends of the pushed fastener toward the center. Good. More preferably, the fastener 17 can adjust the length of the left belt 18B or the right belt 18A.

  The right connecting portion 18R and the left connecting portion 18L can use arc-shaped belts.

  The left anti-slip portion 16L and the right anti-slip portion 16R are formed by applying a resin having high slip resistance such as rubber to the surface of a belt woven from synthetic fibers.

  As shown in FIG. 4, the internal member 2 has a shape corresponding to the shape of the left cover 11L or the right cover 11R of the cover 11, and has a valve 12 at a position corresponding to the hole 11H.

  As shown in FIG. 5, when the user uses the cushion 1, the mesh 11 </ b> M is on the back side and the left anti-slip part 16 </ b> L and the right anti-slip part 16 </ b> R are on the back 31 between the back and the backrest 31 of the chair 3. Arrange to be on the side.

  Further, the user can fix the cushion 1 to the backrest 31 of the chair 3 by turning the left belt 18B and the right belt 18A behind the backrest 31 and fastening them with the fasteners 17.

  Furthermore, the user can adjust the part where the cushion 1 hits the back by inverting the cushion 1 up and down.

  As described above, the cushion 1 according to the present embodiment includes the valve 12 that regulates the flow of fluid, the valve 12, the inner cover 21 that is sealed so that the fluid inside does not leak by the material that does not allow fluid to permeate, and the inner cover. A pair of left and right internal members 2 having a sponge 22 provided inside 21 and a cross-sectional view that is long and flat in a vertical direction, and a front view is on the upper long side of a horizontally long rectangle with rounded vertices. It has a first recess 13 that is recessed downward, and a second recess 14 that is recessed upward on the long side of the lower side and has a bilaterally symmetric and vertically asymmetric shape, and has a hole 11H through which the valve 12 of the internal member 2 passes, A cover 11 in which the internal member 2 is disposed.

  Therefore, it is possible to provide a cushion that complements the shape of the backrest of the chair, makes the contact surface to the back more suitable for the shape of the back, and makes it easy to return the tilted posture to the median position. It has the effect of becoming.

DESCRIPTION OF SYMBOLS 1 Cushion 2 Internal member 3 Chair 11 Cover 11H Hole part 11L Left cover 11M Mesh part 11R Right cover 12 Valve | bulb 13 1st recessed part 14 2nd recessed part 16L Left slip prevention part 16R Right slip prevention part 17 Fastener 18A Right belt 18B Left belt 18L Left connecting part 18R Right connecting part 21 Inner cover 22 Sponge 31 Backrest

Claims (3)

A pair of left and right internal members comprising: a valve that regulates the flow of fluid; an inner cover that is sealed so that the fluid inside does not leak through the valve and a material that does not allow the fluid to pass through; and a sponge that is provided inside the inner cover When,
The vertical side view is formed to be long and flat in the vertical direction, and the front view is recessed downward on the upper long side of the horizontally long rectangle with rounded vertices and recessed upward on the lower long side. A left-right symmetric and vertically asymmetric shape having a second recess, a hole through which the valve of the internal member passes, and a cover in which the internal member is disposed;
Cushion with. The cover is
A left non-slip portion provided long in the vertical direction at the center of the back surface of the left cover disposed on the left side of the cover;
A right non-slip portion provided long in the vertical direction at the center of the back surface of the right cover disposed on the right side of the cover;
The cushion according to claim 1, further comprising: The sponge is
One formed by foaming a flexible resin, one formed by entanglement of flexible resin yarns, one formed from a natural material including sponge and cotton, and a porous gel The cushion according to claim 1 or 2, wherein one or more types are selected from the above.

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