JP5975649B2 - Vertical chair - Google Patents

Description

  The present invention relates to a saddle chair, and more particularly to a saddle chair that can contribute to posture correction and health promotion of a person sitting while doing housework, watching TV, knitting, reading, and the like.

For housewives who are mainly engaged in domestic work, it is desirable to be able to care for and train the inner thigh muscles, thigh muscles, and abdominal muscles while doing housework, etc., because it can contribute to health promotion. Therefore, swingable chairs and saddle chairs have been developed.
The swingable chair includes a seat portion having a bottom surface formed of a foam material such as polystyrene foam and formed in an arc shape, and a receiving surface for receiving the bottom surface of the seat portion, and the bottom surface in contact with the floor surface is flat. A chair provided with a leg is known (Patent Document 1).
There is also known a chair provided with a base member placed on the floor, a seat member held by the base member, and guide means for guiding the seat member to perform a pendulum movement with respect to the base member. (Patent Document 2).
A chair device including a first seat portion and a second seat portion that are separately provided, and a drive portion that continuously moves the two seat portions toward and away from each other, as a drive device built therein. Is known (Patent Document 3).
There is also known a riding type body training device that simplifies the drive mechanism for moving the seat body in the front-rear direction, the left-right direction, and the up-down direction, thereby saving the space of the link mechanism and making the device compact. (Patent Document 4).

However, the swingable chair can easily obtain a relaxed state by swinging, but cannot obtain other effects.
In addition, it is difficult to use a chair device or a riding type physical training device with a built-in driving device inside the home while doing housework, watching TV, knitting, reading, and the like.

JP2003-31850A JP 7-275073 A JP 2009-82623 A JP 2008-73289 A

  The present invention was made to address the above problems, and provides a saddle-type chair that can promote blood flow to the thigh just by sitting, and can perform abdominal muscle exercise and upper body twisting exercise. Objective.

In the saddle type chair of the present invention, a seating portion on which a user sits and a support portion that supports both knees after sitting are formed continuously from the seating portion in front of the seating portion.
The seating section and the support section is formed on the upper surface of the rectangular prism in plan view trapezoidal base of the trapezoid is the support unit side, the short side parallel to the base is the seating portion,
The seating part of the saddle-type chair has a recessed part where the user's buttocks can be seated, and the support part is a pair of legs that are scooped so that both thighs and both knees abut when the user sits straddling And a pair of protrusions with which both knees abut on the upper part of the knee part, and the user stabilizes the hip part with the concave part, and the hip part on both thighs and inner sides of the knees. seating and sandwiching, Ru can a seating which can be warped by the knees unit is supported by the pair of projections.
And the seating part and support part of a saddle-type chair are the molded products integrally formed with the synthetic resin foam, It is characterized by the above-mentioned.
Here, the front of the seating portion refers to the forward direction of the user who has been seated across the seat, and the upper portion of the seating portion refers to the upward direction with respect to the floor surface on which the saddle chair is installed.

The seat part and the support part, which are the integrally formed product, are trapezoidal in a plan view, and the bottom of the trapezoid is on the support part side.
The seating portion and the support portion have a space portion, and / or a bottom surface portion having a flat spherical surface on the lower surface of the seating portion and the support portion.
The saddle chair of the present invention is a molded product integrally formed of a synthetic resin foam, and the synthetic resin foam is a styrene-modified polyethylene resin foam, a polystyrene resin foam, or a high impact polystyrene resin foam. And at least one synthetic resin foam selected from styrene-ethylene copolymer resin foam and polyolefin resin foam.

The saddle type chair of the present invention is a molded product integrally formed of synthetic resin foam, so it is light and easy to carry around and can be used while doing housework, watching TV, knitting, reading, etc. .
Moreover, since it is a molded article integrally formed of the synthetic resin foam, blood flow can be promoted by warming the user's inner crotch by having both thighs abut against the hip after straddling. Furthermore, it can suppress that a thigh is attached to the thigh because both thighs contact and rub against a groin.
Further, after sitting down, the pelvis can be tightened by aligning both knees forward and the posture can be straightened by sitting deeply in the seat.

It is a perspective view of a saddle type chair. It is the perspective view which looked at the saddle type chair from the lower surface. It is a perspective view of the division body of a saddle-type chair.

The saddle chair of the present invention will be described with reference to FIG. FIG. 1 is a perspective view of a saddle chair.
The upper surface of the saddle-type chair 1 is formed in a shape in which a seating portion 2 on which a user sits and a support portion 3 that supports both knees after sitting on the front side where the user is seated are formed. The support part 3 has a pair of projection parts 3a and 3b to support both lower limbs of the user.
The saddle-type chair 1 has a trapezoidal shape in plan view, and the bottom side of this trapezoid is the support portion side. That is, the long side of the two parallel lines constituting the trapezoid is the support portion side. By adopting a trapezoidal shape in plan view, the user can easily straddle when sitting. The size of the bowl-shaped chair 1 depends on the user's age, gender, height, and weight, the length t ₁ of the long side of the trapezoid, the length t ₂ of the short side, the height t ₃ , and The height t ₄ of the saddle chair itself can be set.

Saddle chair 1 is obtained by top and bottom surfaces to mold the upper surface of the rectangular prism in parallel to the saddle shape.
In the saddle shape, a seating portion 2 on which a user can be seated is formed on the short side of the trapezoidal shape in plan view, and a support portion 3 that supports both knees of the user after seating is provided in front of the seating portion 2 from the seating portion 2. It is a continuously formed shape.
The seat 2 has a recess 2a on which a user's buttocks can sit, and the recess 2a corresponds to a saddle for riding, and the back surface 2b of the recess 2a is a user. It is curved into a shape that stabilizes the buttocks. The front part 2c of the recessed part 2a rises forward from the center of the recessed part 2a to a gentler slope than the back surface 2b.
The support portion 3 includes a pair of heel portions 3c and 3d that are squeezed so that both thighs and both knees abut when the user sits straddling, and a pair of heels that support both knees above the heel portion. The protrusions 3a and 3b are formed on the long side of the trapezoidal shape in plan view. The protrusions 3a and 3b are formed at the upper corners of the long side of the trapezoidal shape in plan view, and the turn portions 3c and 3d are both side surfaces in contact with the long side of the trapezoidal shape in plan view and straddle the user's thigh Is formed at a position where the The protrusions 3a and 3b rise gently from the front part 2c of the recess. Further, the side surfaces of the rising surface are rolled to form the turned portions 3c and 3d. These beveled portions 3c and 3d are similar to the flaps of riding saddles. The protrusions 3a and 3b at the front ends are located at both ends of the U-shape when the saddle chair 1 is viewed from the front.

  The saddle-type chair of the present invention is preferably a synthetic resin foam and has a space therein. Due to the presence of the space portion, it is possible to reduce the weight of the saddle-type chair manufactured from the synthetic resin foam, and to further improve the heat retaining characteristics.

FIG. 2 shows a perspective view of the saddle chair of the present invention as viewed from the bottom.
The saddle chair 1 preferably has a bottom surface portion 4 having a flat spherical surface 4a on the lower surface of the saddle chair placed on the floor or the like. The flat spherical surface 4a is a spherical surface that can swing not only in the front-rear direction like the rocking chair but also in the direction of 360 degrees when the user sits straddling. preferable. The flat spherical surface 4a preferably has a height of a vertical cross-section arc passing through the center of the flat spherical surface of 3.0 cm or less so that the user can stably sit on the flat spherical surface 4a. The flat spherical surface can be formed on the entire bottom surface of the trapezoidal column. In this case, the flat spherical surface may be a perfect circle or an ellipse.
Further, the bowl-shaped chair can be a bottom plate having a size exceeding the entire bottom surface of the trapezoidal column.

The saddle-type chair 1 is a molded product integrally formed of a synthetic resin foam as a whole. The entire saddle-type chair 1 can be integrally formed by a well-known method using a single mold for producing a synthetic resin foam. Moreover, the method of manufacturing the division body 1a, 1b, 1c of the vertical chair 1 using the synthetic resin foam manufacturing metal mold | die which divided | segmented the vertical chair 1 into several parts, and combining those division bodies. Can be adopted.
When the saddle-type chair 1 has a space portion inside, or when it has a bottom surface portion having a flat spherical surface on the lower surface, a method of joining the divided bodies of the saddle-type chair 1 is preferable.

FIG. 3 shows an example of a divided body obtained by dividing the bowl-shaped chair 1 into substantially equal intervals at the upper part, the middle part, and the lower part. 3A is an upper divided body 1a that is a heel portion over which a user straddles, and FIG. 3B is an intermediate divided body 1b in which a part of the ridge portion is formed on the side surface. (C) is a lower divided body 1c in which, for example, a bottom surface having a flat spherical surface is disposed on the lower surface.
The interior of the intermediate divided body 1b and the lower divided body 1c is hollowed out, and the hollowed-out portion forms a space portion 5 inside the chair. The space 5 may be formed as long as the mechanical strength of the saddle chair after assembly can be maintained.
By using the divided body, the structure of the mold for producing the synthetic resin foam can be simplified without using the core or the like even if it has a hollowed-out portion. The divided bodies 1a, 1b, and 1c are fixed to each other with an adhesive or the like.
In addition, when the saddle type chair 1 has the flat spherical bottom surface portion 4, the bottom surface portion can be separately molded and assembled.
Assembling the bottom portion of the saddle chair includes a method of fixing the bottom chair, the middle portion, and the top to a saddle chair with an adhesive, or mechanically fitting the saddle chair. A mechanical fitting method that can easily change the shape of the bottom surface portion 4 is preferable. The method of mechanically fitting is a method in which a protrusion that fits to the bottom surface of the saddle chair is formed on the bottom surface portion, and this bottom surface portion is fitted to the space formed at the bottom of the saddle chair. is there.

  The vertical chair or its divided body is molded by adding a foaming agent to an organic resin and molding using a gas generated during heating, or a reactive resin is molded using a gas generated during a reaction. It can be manufactured by the method. The molding method can be foam-molded using a conventional mold for manufacturing. For example, it is obtained by in-mold foam molding of pre-expanded particles.

Synthetic resin foam for manufacturing a saddle chair or its divided body is the type of resin such as thermoplastic resin or thermosetting resin, foaming means such as decomposable foaming agent or evaporative foaming agent, injection foaming method or extrusion foaming. Molding method such as foaming method, foaming ratio such as low foaming of 10-20 times or less, high foaming of 40-80 times, etc., cell structure such as independent or open cells, etc. are selected variously depending on the type and application of the saddle chair can do.
For example, a closed cell structure is preferred particularly when water resistance used in a kitchen or bathroom is required. In the present invention, at least one selected from a styrene-modified polyethylene resin foam, a polystyrene resin foam, a high impact polystyrene resin foam, a styrene-ethylene copolymer resin foam, and a polyolefin resin foam. One synthetic resin foam is preferred. In particular, a styrene-modified polyethylene resin foam having an expansion ratio of about 10 to 50 is suitable for reducing the strength and weight of the saddle chair or its divided body.
The chair with styrene-modified polyethylene resin foam is lightweight because it has excellent mechanical strength even if the foaming ratio of the resin is increased. Excellent in durability, with little aging, and excellent durability. Further, the styrene-modified polyethylene resin foam is a resin foam in which volatile organic compound (VOC) measures are sufficiently taken.

  A plastic film or a non-woven fabric can be attached to the surface of the saddle chair using thermocompression bonding or an adhesive. Examples of the material of the plastic film or nonwoven fabric include polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyolefins such as polystyrene, polyethylene, and polypropylene, and polyvinyl chloride polypropylene. A polyethylene terephthalate film having high mechanical strength and easy handling such as surface printability is preferred.

The saddle chair 1 of the present invention can be used as a saddle chair excluding the bottom surface portion 4.
The saddle chair excluding the bottom can be placed directly on the floor. In this case, since the lower part of the saddle chair is in close contact with the floor surface, the saddle chair is stabilized without swinging.
A person using a saddle-type chair sits straddling the chair while looking forward at the protrusions 3a and 3b formed on the chair. The buttocks are stabilized by a dent formed in the seating portion, and the groin portions 3c and 3d are sandwiched between the thighs and the inner sides of both knees. By sandwiching, the portion in contact with the resin foam becomes warm. The warmed part promotes blood flow, and the thigh becomes warmer.
Further, the user can warp on the saddle-type chair by sitting with both knees pressed against the pair of front protrusions 3a and 3b. When it warps, there is an abdominal exercise effect. In particular, you can do abdominal exercises that put a load on the lower abdomen, while watching TV.

The saddle chair 1 of the present invention can be used as a saddle chair to which a bottom surface portion 4 is added.
Since the saddle type chair with the bottom portion is shaped like a ship bottom, it can be seated to swing the user's body from side to side and back and forth. By swinging the body, you can do flexible exercises while doing housework, watching TV, knitting, reading, etc.
In addition, it can be used as a balancer by removing the bottom surface.

  The saddle-type chair of the present invention increases the blood flow just by sitting, can also exercise abdominal muscles, can swing left and right, back and forth, so it can be used while doing housework, watching TV, knitting, reading It can be used as a chair that can contribute to correction and health promotion.

DESCRIPTION OF SYMBOLS 1 Saddle-type chair 2 Seating part 3 Supporting part 4 Bottom face part 5 Space part

Claims (4)

A saddle-type chair in which a seating portion on which a user sits and a support portion that supports both knees after sitting in front of the seating portion are formed continuously from the seating portion,
The seating portion and supporting portion is formed on the upper surface of the rectangular prism in plan view trapezoidal base of the trapezoid is the support part side, a short side parallel to the bottom is the seating portion,
The seating portion has a recessed portion where the user's buttocks can be seated, and the support portion is paired so that both thighs and knees are in contact with each other when the user sits straddling. And a pair of protrusions with which both knees abut on the upper part of the knee part, and the user stabilizes the hip part in the recessed part, and the knee part is located on both thighs and inside the knees. A seat that can be sandwiched and a seat that can be warped while both knees are supported by the pair of protrusions,
A saddle-type chair characterized in that the seating portion and the support portion are molded products integrally formed of a synthetic resin foam.   The saddle-type chair according to claim 1, further comprising a space portion inside the seating portion and the support portion.   The saddle-type chair according to claim 1 or 2, further comprising a bottom surface portion having a flat spherical surface on the lower surface of the seating portion and the support portion.   The synthetic resin foam is at least one selected from styrene modified polyethylene resin foam, polystyrene resin foam, high impact polystyrene resin foam, styrene-ethylene copolymer resin foam, and polyolefin resin foam. The saddle type chair according to any one of claims 1 to 3, wherein the chair is a synthetic resin foam.

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