JP2016187516A - Cushion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushion that can be easily changed in shape, has a stable shape, and is not easily deformed.SOLUTION: A cushion 1 includes: a main body member 10 having an inclined surface 11 and a horizontal surface; and an inversion member 20. In a first form where the inversion member 20 is positioned on the upper rear side of the main body member 10, an upward and backward inclined surface is formed to have continuity to the front-side inclined surface of the main body member 10. In a second form where the inversion member 20 is positioned on the upper front side of the main body member, a horizontal surface is formed to have continuity to the horizontal surface on the rear side of the main body member 10. Multiple projections and recessions to be mutually engaged with each other are arranged on the front side upper surface of the main body member 10 and the upper surface of the inversion member 20 in the first form.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a seat cushion, and more particularly to a seat cushion that can contribute to improving the sitting posture and training the inner muscle and lower limbs by simply changing the horizontal angle of the seating surface and inclining forward, for example. is there.

  Various shapes of cushions have been proposed and sold. Since cushions are used for the purpose of dispersing body pressure to improve sitting comfort and preventing cooling from the floor, elastic materials having elasticity and heat retention are often used. Many common cushions have a thin disk shape or square disk shape, and the bottom and top surfaces are both parallel to the horizontal plane, but for strength training and posture correction, A cushion is also devised with its upper surface inclined forward.

  For example, an external appearance shape (A) in which the upper surface is inclined forward with respect to the horizontal lower surface and an external appearance shape (B) in which the lower surface and the upper surface are both horizontal and parallel can be freely converted alternately. A body holding pad is disclosed in Patent Document 1 (see FIGS. 1, 2, 7, and 8 of Patent Document 1). Further, Patent Document 1 describes that “one body holding pad can be made to correspond to a plurality of purposes of use, and there is also an effect of reducing the user's economic burden”.

Japanese Patent Laid-Open No. 2004-223082

  In Patent Document 1, in the case of the above-described external shape (A) shown in FIGS. 1 and 2 of the same document, a triangular prism whose hardness is set higher than that of the first pad portion 20 on the first pad portion 20 having a quadrangular prism shape. The body holding surface 14 inclined forward is formed by overlapping the shaped second pad portions 30. For this reason, the user tries to keep the tilted posture forward, and this strengthens the trunk muscles for posture maintenance. There is a problem that it cannot be used as much as expected because it cannot maintain the tilted posture.

  In the case of the external shape (B) shown in FIGS. 7 and 8 of the same document, the second pad portion 30 is diagonally stacked on the first pad portion 20, and the weight of the user is applied thereon. Therefore, when the user tries to change the sitting posture or the sitting position as much as possible, the force that the first pad portion 20 tries to slide down along the overlapping surface works. Further, since the first pad portion 20 and the second pad portion 30 are connected by the connecting member 40, local stress concentration occurs on the attachment portion of the connecting member 40.

  Therefore, the configuration of the above-described external shape (A) shown in FIGS. 1 and 2 of the document is insufficient for keeping the user's body in an inclined posture. Further, the configuration of the external shape (B) shown in FIGS. 7 and 8 of the same document has a problem that the user cannot sit down stably and the connecting member 40 and its mounting portion are easily broken. Furthermore, since the first pad portion 20 is made of an elastic material, there is a problem that the first pad portion 20 is deformed into an irregular shape when the overlapping surface slips and an excessive load is applied to the connecting member 40.

  The present invention has been made in consideration of the conventional problems as described above, and provides a cushion that can be easily changed in shape, stable in shape, and hardly deformed.

  In the seat cushion according to the present invention, the front and back directions and the width direction are assumed corresponding to the user's sitting posture, and when the front side and the rear side are further assumed by dividing the front and back directions, The front side upper surface is an inclined surface having a forward and downward inclination, the rear side upper surface is a horizontal surface, and the front side and the rear side of the upper surface are reversed in the front-rear direction about the boundary line. In the first mode (a) in which the top and bottom surfaces are reversed so that the top and bottom surfaces are reversed, and the reversing member is located on the rear side of the body member, as shown in FIG. In the second mode (b) in which an inclined surface that rises rearward is formed continuously with the inclined surface, and the inversion member is positioned on the front side of the main body member as shown in FIG. Forming a horizontal plane continuous with the horizontal plane on the rear side of the main body member A rectangular side top, on the upper surface of the reversing member in the first embodiment, and having a plurality of irregularities mate with each other.

  The “horizontal plane” referred to here does not exclude a gently inclined surface. At this time, the “continuous horizontal surface” in the second mode (b) forms a “continuous gently inclined surface”. However, as long as it is gentle, it does not exclude forward and backward tilts.

  The unevenness may be any shape such as a gently curved shape in the upper and lower sides, a triangular shape that is bent in the upper and lower sides, a square shape, or a trapezoidal shape. However, it is hereinafter referred to as “first unevenness” for the sake of convenience of understanding. When the user uses the first form (a) by the first unevenness, the user can be prevented from sliding forward, and the user's pelvis can be tilted forward to maintain a good posture state. It is possible to contribute to training of the inner muscle and lower limbs. Further, when the user reverses the reversing member to the front side and uses it in the second form (b), the first unevenness is fitted to each other so that friction occurs between the uneven surfaces, and the main body It is possible to prevent the front side of the cushion from slipping by suppressing the movement of the member and the reversing member to slide with each other, and to maintain a stable seating posture.

  The cushion preferably further includes a plurality of projections and depressions that fit into each other on the rear upper surface of the main body member and the upper surface of the reversing member in the second mode (b). This unevenness can also be freely adopted with the same meaning as described for the shape of the first unevenness. Similarly, for the sake of convenience of understanding, it is hereinafter referred to as “second unevenness”. With this second unevenness, when the user uses the second form (b), the second unevenness can exert a “pot stimulation” effect that the second unevenness has on the user's buttocks. In addition, when the user reverses the reversing member to the rear side and uses it in the first form (a), the second unevenness is fitted to each other so that friction occurs between the uneven surfaces, When the reversing member slides down due to the load on the buttocks side in the tilted posture, the body member and the reversing member can be prevented from sliding with each other, the shape of the cushion is stabilized, and the shape is prevented from being lost. be able to.

  Further, in the cushion, the upper surface of the reversing member in the first embodiment (a) and the inclined surface on the front side of the main body member are flush with each other, and both have substantially the same inclination angle. In the second embodiment (b), the upper surface of the reversing member and the horizontal surface on the rear side of the main body member are preferably flush with each other, and the inclination angles of both are preferably substantially the same.

  Further, the cushion includes two bag bodies for independently enclosing the main body member and the reversing member, each bag body enclosing a main body member enclosing portion for enclosing the main body member, and the reversing member. It is preferable that the reversing member enclosing portion to be connected is connected at the position of the boundary line.

  Further, in the cushion, a rigid hinge integrated so as to protrude from the reversing member by providing a slit penetrating the main body member in a vertical direction at an appropriate position of the boundary between the front side and the rear side on the upper surface. It is preferable that the main body member is connected so as to be rotatable by being fitted into the slit.

  Furthermore, in the cushion, it is preferable to have a ventilation hole in the thickness direction of the main body member and the reversing member, and it is preferable to have a ventilation groove on the bottom surface side of the main body member.

  The cushion according to the present invention can be easily converted alternately between the first form (a) and the second form (b). Further, the user can obtain the first form (a) by the unevenness on the front upper surface of the main body member in the first form (a) constituting the first unevenness and the unevenness on the upper surface of the reversing member in the first form (a). ), The user sitting on the cushion can be prevented from sliding forward, and the user's pelvis can be tilted forward to maintain a good posture, which contributes to training of the inner muscle and the lower limbs. It becomes possible. Further, when the user reverses the reversing member to the front side and uses it in the second form (b), the first unevenness is fitted to each other so that friction occurs between the uneven surfaces, and the main body It is possible to prevent the front side of the cushion from slipping by suppressing the movement of the member and the reversing member to slide with each other, and to maintain a stable seating posture.

  In addition, although the 1st unevenness | corrugation and the 2nd unevenness | corrugation fit each other, the fitting of this unevenness | corrugation prevents a user slipping down according to the cushioning property of a cushion material becoming high. The effect of doing is improved.

It is an external appearance figure (upper surface side) in the 1st form (a) of the present invention. It is an external appearance three-dimensional view (upper surface side) in the 2nd form (b) of this invention. It is a side view in the 1st form (a) of the present invention. It is a side view in the 2nd form (b) of the present invention. It is an external appearance three-dimensional view (upper surface side) at the time of providing a several unevenness | corrugation in the orthogonal | vertical direction. It is an external appearance three-dimensional view (upper surface side) at the time of providing a several unevenness | corrugation in the diagonal direction. It is a disassembled perspective view in the 2nd form (b). It is an external appearance three-dimensional view (upper surface side) in the case of having a vent hole on the seat surface side and a vent groove on the bottom surface side. It is a projection view in the 1st form (a) in the case of having a vent hole and a vent groove. It is a projection view in the 2nd form (b) in the case of having the same ventilation hole and ventilation slot. It is an external appearance three-dimensional view (upper surface side) of the bag body of the cushion according to the embodiment of the present invention. It is a projection view in the 1st form (a) of the bag body of the cushion according to the embodiment of the present invention. It is a projection view in the 2nd form (b) of the bag body of the cushion cushion which concerns on embodiment of this invention.

  The cushion according to the embodiment of the present invention includes a main body member, a reversing member, and a bag body. Since the main body member and the reversing member are sealed in the bag body, only the bag body appears on the appearance. The bag body is generally made of cloth having a thickness of about 0.5 to 3 mm, and the shape of the cushion is dependent on the shape of the main body member and the reversing member, so that the bag body is shown in FIGS. I am transparent.

  FIG. 1 is an external three-dimensional view (upper surface side) of the first embodiment (a) of the present invention, and FIG. 2 is an external three-dimensional view (upper surface side) of the second embodiment (b) of the present invention. The main body member 10 is made of a soft elastic material having elasticity and heat retention, such as polyurethane foam (PUF), ester cotton, polystyrene (PS), etc., and an inclined surface 11 having an upper surface on the front side that has a downward slant. The upper surface on the rear side is a horizontal plane 12. Furthermore, a plurality of irregularities are formed on the inclined surface 11 on the upper surface on the front side of the main body member 10. The unevenness may be a gentle curved surface, a bent triangle, a square, or a trapezoid, and may be formed in the width direction or the front-rear direction. In consideration of not lowering, for example, it is preferable to have a plurality of undulations 11a extending in the width direction. Further, the plurality of irregularities may be any part in the front-rear direction, and may be, for example, the entire surface of the inclined surface 11 or a part thereof. Further, as shown in FIGS. 5 and 6, the plurality of unevennesses are perpendicular to the upper surface (the unevenness is parallel to the width direction and arranged continuously) or obliquely (the unevenness is in the width direction). It is also possible to form it in a slanted manner by arranging non-concave portions at both ends in the width direction.

  The reversing member 20 is made of the same soft elastic material as that of the main body member 10 and is reversed about the boundary line X between the front side and the rear side on the upper surface. The position of the boundary line X is closely related to the configuration of the bag 30 described later. That is, in the bag body 30, a main body member enclosing portion 31 enclosing the main body member 10 and an inversion member enclosing portion 32 enclosing the inversion member 20 are connected at the position of the boundary line X (see FIG. 11).

  As shown in FIGS. 1 and 3, in the first mode (a), the reversing member 20 is positioned on the rear side of the main body member 10, and the upper surface 22 of the reversing member 20 is inclined on the front side of the main body member 10. It is integrated with the surface 11 to form an inclined surface A that rises rearward as a whole. Furthermore, the upper surface 22 of the reversing member 20 in the first form (a) has a plurality of irregularities. The unevenness is not particularly limited with respect to the shape and location as in the case of the inclined surface 11 on the upper surface on the front side of the main body member 10, but it is considered that the user sitting on the cushion does not slide down forward. For example, it is preferable to have a plurality of undulations 22a extending in the width direction. In addition, it is preferable that the upper surface 22 of the reversing member 20 in the first embodiment (a) and the inclined surface 11 on the front side of the main body member 10 are flush with each other and that the inclination angles are substantially the same. Further, the upper surface 22 of the reversing member 20 and the inclined surface 11 on the front side of the main body member 10 in the first mode (a) prevent the user sitting on the cushion from sliding down forward, and the user's pelvis is inclined forward. The tilt angle is preferably 10 to 15 degrees, and more preferably 11 to 13 degrees, taking into account that a good posture state is created.

  On the other hand, as shown in FIGS. 2 and 4, in the second mode (b), the reversing member 20 is positioned on the front side of the main body member 10, and the upper surface 21 of the reversing member 20 is on the rear side of the main body member 10. The horizontal plane B is formed integrally with the horizontal plane 12. In addition, it is preferable that the upper surface 21 of the reversing member 20 in the second mode (b) and the horizontal surface 12 on the rear side of the main body member 10 are flush with each other, and the inclination angles thereof are substantially the same. In addition, the upper surface 21 of the reversing member 20 and the horizontal surface 12 on the rear side of the main body member 10 in the second mode (b) preferably have an inclination angle of ± 5 degrees or less so that the user can maintain a stable seating posture. , More preferably ± 1 degree or less.

  The cushion 1 according to the embodiment of the present invention includes, in the first form (a), the corrugation 11a on the front upper surface of the main body member 10 constituting the first unevenness and the reversing member 20 in the first form (a). When the user uses the first form (a) by the wavy surface 22a on the upper surface, the user sitting on the cushion is prevented from sliding down forward, and the user's pelvis is tilted forward and has a good posture state. It can be maintained and can contribute to training of the inner muscles of the lower limbs.

  Further, when the user reverses the reversing member to the front side and uses it in the second form (b), the first unevenness is fitted to each other so that friction occurs between the uneven surfaces, and the main body It is possible to prevent the front side of the cushion from slipping by suppressing the movement of the member and the reversing member to slide with each other, and to maintain a stable seating posture.

  Further, in the second form (b), the seat 12 is seated on the cushion by the corrugated 12a on the rear upper surface of the main body member 10 constituting the second unevenness and the corrugated 21a on the upper surface of the reversing member 20 in the second form (b). The user can maintain a stable seating posture.

  Further, when the user reverses the reversing member to the rear side and uses it in the first form (a), the second unevenness is fitted to each other so that friction occurs between the uneven surfaces, and the main body The movement that the member and the reversing member try to slide with each other can be suppressed, the shape of the cushion can be stabilized, and deformation of the shape can be suppressed.

  In consideration of positioning of the main body member 10 and the reversing member 20 and dispersion of a load applied to the reversing member 20 to improve durability, a portion protruding from the end of the reversing member 20 (hereinafter referred to as a hinge). 40 is preferably fitted into a gap (hereinafter referred to as a slit) 50 provided in the main body member 10.

  The hinge 40 and the slit 50 will be described by taking the second form (b) as an example. Specifically, as shown in FIG. 7, a plate-like hinge that protrudes from the end of the reversing member 20 by providing a slit 50 in the vicinity of the boundary line X between the front side and the rear side on the upper surface of the main body member 10. 40 is preferably inserted into the slit 50 so that the main body member 10 and the reversing member 20 are connected. Here, the shape of the hinge 40 is not particularly limited as long as the main body member 10 and the reversing member 20 are connected and the bending strength of the reversing member 20 can be secured, and can be designed as appropriate. Moreover, as for the material of the hinge 40, for example, it is preferable to use a hard material in consideration of the bending strength of the reversing member 20, and it is more preferable to use a polypropylene material. As a method for fixing the main body member 10 and the reversing member 20, it is preferable to apply an adhesive tape or a double-sided tape to the end of the reversing member 20 or the surface of the hinge 40.

  In the present invention, the cushion is intended to mean anything used as a cushioning material while sitting on the user, and includes cushions, pads, and the like.

  Each of the ridges 11a, 12a, 21a, and 22a according to the embodiment of the present invention can give a light stimulus to the buttocks in a sitting state, and can enjoy a feeling similar to a so-called acupoint stimulus. It is also possible to change the stimulation in the same position and the same direction by changing the sitting position slightly forward or slightly changing the sitting posture forward or backward. It also contributes to alleviating the difficulty of sitting in the forward leaning posture. Moreover, it can prevent that the fiber which comprises the soft elastic raw material which is the material of the main body member 10 or the inversion member 20 extends by making it wavy.

  In the first form (a), the cushion 1 according to the embodiment of the present invention has a good posture state in which the user's pelvis is inclined forward and the back muscles are stretched by inclining forward at an angle. It becomes training. In the first form (a), the posture cannot be maintained unless force is applied to the thighs, so that the lower limbs are trained naturally, and the front bay of the lumbar spine is strengthened, so that the scapula is displaced backward, It is also expected that cervical vertebrae, thoracic vertebrae and lower back muscles will be relieved from the inside of the scapula, and back pain and stiff shoulders will be resolved. In the first mode (a), it is expected that a hip-up effect can be obtained by improving the posture.

  FIG. 8 is an external three-dimensional view (upper surface side) in the case of having a vent hole on the seat surface side and a vent groove on the bottom surface side, and FIGS. 9 and 10 are first forms in the case of having the vent hole and vent groove, respectively. It is a projection figure in (a) and the 2nd form (b). In consideration of suppressing the occurrence of stuffiness due to the user sitting on the cushion 1 for a long time, a ventilation hole is provided in the thickness direction of the main body member 10 and the reversing member 20, or a ventilation groove is provided on the bottom surface side of the main body member 10. It is preferable to provide it. With respect to the vent hole and the vent groove, the shape and arrangement of the hole and groove are not particularly limited, but according to the strength and stretchability of the soft elastic body that is the material of the main body member 10 and the reversing member 20, It is possible to design appropriately.

  In addition, in consideration of use during the rainy season and in the hot and humid season, the bottom surface of the cushion 1 is provided with wavy irregularities so that both the top surface and the bottom surface can be used reversibly. Is also possible.

  In consideration of suppressing the occurrence of the stuffiness, for example, it is possible to appropriately carry out a method of laying a gossa goza, a tatami mat or the like on the cushion 1. In this case, the cushion 1 according to the embodiment of the present invention has wavy irregularities on the upper surface of the main body member 10 and the upper surface of the reversing member 20, so that even if it is laid with grass goza, tatami mat, etc. It is possible to maintain a stable sitting posture for the user.

  FIG. 11 is an external three-dimensional view (upper surface side) of a cushion cushion according to an embodiment of the present invention, and FIGS. 12 and 13 are first views of a cushion cushion according to an embodiment of the present invention. It is a projection figure in form (a) and the 2nd form (b). The bag body 30 is a fabric or leather bag that can enclose the main body member and the reversing member. The bag body 30 is not limited to fabric or leather, but may be made of any material as long as the same shape can be realized and the necessary strength can be obtained. As shown in FIG. 11, the bag body 30 is protected because a main body member enclosing portion 31 enclosing the main body member and an inversion member enclosing portion 32 enclosing the inversion member are connected at the position of the boundary line X. It plays the role of a cover and the role of a connecting member that connects the main body member 10 and the reversing member 20.

DESCRIPTION OF SYMBOLS 1 Cushion 10 Main body member 11 Inclined surface 11a Wave 12 Horizontal surface 12a Wave 20 Reversing member 21 Upper surface of reversing member 20 in 2nd form (b) 21a Wave 22 Upper surface of reversing member 20 in 1st form (a) 22a Wave Article 30 Bag body 31 Main body member enclosing portion 32 Inverting member enclosing portion 40 Hinge 50 Slit A Inclined surface B in which the inclined surface 11 of the main body member 10 and the upper surface 22 of the reversing member 20 are integrated in the first embodiment (a) B Second embodiment Horizontal plane X boundary line obtained by integrating upper surface 21 of reversing member 20 and horizontal plane 12 of main body member 10 in (b)

Claims (7)

In the cushion, assuming the front and back direction and the width direction according to the sitting posture of the user, and further dividing the front and back direction and assuming the front side and the rear side,
The cushion is
The front side upper surface is an inclined surface having a front-lowering inclination, and the rear side upper surface is a horizontal surface,
By reversing in the front-rear direction around the boundary line between the front side and the rear side on the upper surface, it consists of a reversing member that reverses the top and bottom top and bottom,
In the first mode in which the reversing member is located on the rear side of the main body member, the inclined member is formed to be continuous with the front inclined surface of the main body member so as to rise backward.
In the second mode in which the reversing member is located on the front side of the main body member, a horizontal plane that is continuous with the horizontal plane on the rear side of the main body member is formed,
A cushion according to claim 1, wherein the upper surface of the main body member and the upper surface of the reversing member in the first form have a plurality of projections and depressions that fit into each other. further,
The cushion of Claim 1 which has several unevenness | corrugations which mutually fit in the back side upper surface of the said main body member, and the upper surface of the inversion member in the said 2nd form. The upper surface of the reversing member in the first embodiment and the inclined surface on the front side of the main body member are flush with each other, and both have substantially the same inclination angle.
The cushion according to claim 1 or 2, wherein an upper surface of the reversing member in the second form and a horizontal surface on the rear side of the main body member are flush with each other. further,
A slit that penetrates the main body member in the vertical direction is provided at an appropriate position of the boundary between the front side and the rear side on the upper surface, and a rigid hinge integrated so as to protrude from the reversing member is fitted into the slit. The cushion according to any one of claims 1 to 3, wherein the cushion is connected so as to be pivotable with respect to the main body member. further,
The cushion according to any one of claims 1 to 4, further comprising a vent hole in a thickness direction of the main body member and the reversing member. further,
The cushion according to any one of claims 1 to 5, further comprising a ventilation groove on a bottom surface side of the main body member. further,
Having two bags each enclosing the main body member and the reversing member independently;
The body part enclosing part that encloses the main body member and the reversing member enclosing part that encloses the reversing member are connected to each bag body at the position of the boundary line. Cushion according to item.