JP3103177U - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seating chair which can take a comfortable sitting position and does not put a burden on the waist.
SOLUTION: The seat chair 100 includes a seat portion 101, a backrest portion 102, a leg portion 103, and a support portion 104, and the angle between the backrest portion 102 and the seat portion 101 is substantially equal. 90 degrees, and when the angle between the leg 103 and the seat 101 is substantially 90 degrees, the angle β between the floor surface 110 and the backrest 102 is 25 degrees to 60 degrees. A chair 100 is provided that is in a range of degrees.
[Selection diagram] Fig. 1

Description

  The present invention relates to a chair.

  2. Description of the Related Art In order to sit on a floor in a room or the like, a seat chair having a seat portion and a backrest portion has been conventionally used. For example, as in a seat chair described in JP-A No. 2003-116657, In this chair, the angle between the seat and the backrest can be set to an arbitrary angle.

  However, in the conventional seat chair, since the seat portion is parallel to the floor, the posture of the lower body when seated is restricted, and it is impossible to take a comfortable sitting position.

  In addition, the conventional seat chair cannot be used when the weight of the upper body rests on the lower back when the user sits down and suffers from lower back pain.

  Therefore, an object of the present invention is to provide a seat chair that can take a comfortable sitting position and does not place a burden on the waist when seated.

  In order to solve the above problems, the present invention provides a seat portion having a region where a person can sit, a backrest portion having a region where a person can lean on the back, and a leg placed below the knee by the person. A leg portion, a support portion, and the backrest portion rotatably connected to the seat portion around the first side of the seat portion, and the backrest portion to the seat portion. A first pivoting mechanism for fixing at a desired angle, the leg portion with respect to the seat portion, centering on a second side facing the first side of the seat portion, and with respect to the seat portion; A second rotating mechanism that is rotatably connected on the side opposite to the backrest and that fixes the legs at a desired angle with respect to the seat; The rotation mechanism includes the backrest portion and the seat portion. The angle between the first angle and the 180 degrees from the first angle, the backrest portion is rotated with respect to the seat portion, the second rotation mechanism between the leg and the seat portion The angle is within a range from the second angle to 180 degrees, the leg portion is rotated with respect to the seat portion, the support portion is the first side of the seat portion from the second side And wherein the first angle is between 85 and 95 degrees and the second angle is between 85 and 95 degrees. .

  In this way, the leg portion is attached to the seat portion so as to be rotatable around the second side, and extends from the first side opposed to the second side in a direction opposite to the second side. With the support portion, the seat portion can be inclined with respect to the floor surface, so that the lower body is not cramped and can be used even when the patient has a backache.

  In addition, since a human can mount the leg below the knee on the leg attached to the seat, a more comfortable posture can be taken.

  Here, it is preferable that each of the first rotating mechanism and the second rotating mechanism is constituted by a ratchet, and the backrest and the leg can be fixed to the seat at a fixed angle.

  Further, the support portion attached to the seat portion is bent in the direction of the backrest portion with respect to the first portion extending in the direction opposite to the second side from the first side and the direction in which the first portion extends. With the second portion, the support portion comes into contact with the ground at a position further away from the first side where the seat portion and the back portion are attached, so that a person can lean on the back portion. Even if it is about to be thrown, it will not be overturned backwards.

  Here, with respect to this support portion, when the backrest makes an angle of 90 degrees with respect to the seat and the legs make an angle of 90 degrees with respect to the seat, the ground and the backrest make contact with each other. Is formed to be in the range of 25 degrees to 60 degrees, so that a burden is not applied to the waist portion when a person sits down.

  In addition, by making this support part detachable with respect to the seat part, it is convenient for storage or the like.

  As described above, according to the present invention, the leg portion rotatably attached to the seat portion around the second side, and the second portion from the first side opposed to the second side. With the support portion extending in the direction opposite to the side of the side, the seat portion can be inclined with respect to the floor surface, so that cramp of the lower body is eliminated.

  Also, when the backrest makes an angle of 90 degrees to the seat and the legs make an angle of 90 degrees to the seat by the support attached to the seat, The angle between the backrest and the backrest is in the range of 25 degrees to 60 degrees, so that no burden is applied to the lower back, and the back can be used even if the patient has low back pain.

  FIG. 1 is a side sectional view of a chair 100 according to a first embodiment of the present invention.

  The chair 100 includes a seat 101, a backrest 102, a leg 103, and a support 104.

  The seat portion 101 is formed by attaching a cushion 106 made of urethane resin to the upper surface of two seat portion frames 105A (only one is shown in FIG. 1 because it is a side sectional view). The cushion 106 allows a person to sit on the cushion 106.

  As shown in FIG. 3 (rear sectional view of the chair 100), the backrest portion 102 is also provided with two backrest frames 105B arranged sideways and connecting the upper ends thereof (FIG. 1 is a side sectional view). Therefore, a cushion 106 made of urethane resin is attached to the upper surface of the cushion 106 so that a person can lean on his / her back.

  As for the leg portion 103, a cushion 106 made of urethane resin is attached to the upper surface of a leg frame 105C (only one is shown in FIG. 1 because it is a side cross-sectional view). This allows a person to place a leg below the knee on the cushion 106.

  As shown in FIG. 3, the support portion 104 is also provided by a support portion frame 105 </ b> D that is disposed two on the side and connects the lower ends thereof (FIG. 1 is a side cross-sectional view, so only one is shown). Is formed.

  Here, the seat frame 105A, the backrest frame 105B, the leg frame 105C, and the support frame 105D are formed by aluminum pipes, respectively, and the seat 101, the backrest 102, the leg 103, and the support 104 are formed. Is covered by a cover 107.

  Here, as for the size and shape of the seat portion 101, a size and shape that can be seated on the seat portion 101 may be selected as appropriate, and the size and shape of the backrest portion 102 may also be selected. It is only necessary to select a size and shape that allows the user to lean on his back on the backrest 102 while sitting on the floor. The size / shape that allows the user to place the foot on the leg 103 may be appropriately selected.

  The seat part 101 and the backrest part 102 connect the seat part frame 105A and the backrest part frame 105B which form them with each other by a first ratchet connecting part 108A as a first rotating mechanism, thereby forming a first ratchet connecting part 108A. 1 (only one is shown because FIG. 1 is a side cross-sectional view), and is rotatable about a first side which is a line segment connecting the two.

  The first ratchet connector 108A can rotate the seat 101 and the backrest 102 with respect to each other so that the angle between them becomes substantially 90 degrees as shown in FIG. As shown in FIG. 2 (a cross-sectional side view of the chair 100), they can be mutually rotated so that the angle between them becomes approximately 180 degrees.

  It should be noted that the first ratchet connector 108A is configured such that the seat frame 105A and the backrest frame 105B can be fixed at a predetermined angle, for example, every 10 degrees, so that the seat 101 and the backrest can be fixed. 102 can be fixed at every predetermined angle.

  Further, it is desirable that the angle between the seat 101 and the backrest 102 can be rotated in a range of 95 degrees to 180 degrees or more, preferably in a range of 85 degrees to 180 degrees.

  The seat 101 and the leg 103 are also connected to each other by the second ratchet connector 108B as a second rotating mechanism by connecting the seat frame 105A and the leg frame 105C that form the second ratchet. The connecting members 108B are rotatable about a second side which is a line segment connecting the connecting members 108B (FIG. 1 is a side sectional view, and only one is shown).

  The second ratchet connector 108B can rotate the seat 101 and the leg 103 relative to each other so that the angle between them is approximately 90 degrees, as shown in FIG. , As shown in FIG. 2, they can be mutually rotated so that the angle between them is approximately 180 degrees.

  In addition, about the 2nd ratchet connection tool 108B, the seat part 101A and the leg part 105C are fixed so that the seat part frame 105A and the leg part frame 105C can be fixed at predetermined angles, for example, every 10 degrees. 103 can be fixed at every predetermined angle.

  Further, it is desirable that the angle between the seat 101 and the leg 103 can be rotated in a range of 95 degrees to 180 degrees or more, preferably in a range of 85 degrees to 180 degrees.

  The support portion 104 is attached to the seat portion 101 so as to extend from the first side to the direction opposite to the second side.

  The support portion 104 includes a first portion 104a extending from the first side of the seat portion 101 in a direction opposite to the above-described second side, and is bent in a direction of the backrest portion 102 with respect to a direction in which the first portion 104 extends. And a second portion 104b.

  Here, as for the bending angle α between the first portion 104a and the second portion 104b, an arbitrary angle can be appropriately selected from an angle between 115 degrees and 150 degrees. It is formed so that it becomes a degree.

  As described above, since the support portion 104 is bent at a predetermined position, a ground contact position between the support portion 104 and the floor surface 110 is far away from a connection portion between the seat portion 101 and the backrest portion 102. Even when a load is applied, the chair 100 can be prevented from being turned over in the direction of the backrest 102.

  Note that, as shown in FIG. 3, the support portion 104 has a width X inside the backrest portion frame 105B forming the backrest portion 102, and the width of the support portion frame 105D forming the support portion 104. Are formed such that the outer width Y of the frame is small, as shown in FIG. 2, even when the angle between the seat 101 and the backrest 102 is approximately 180 degrees. 105B and 105D are prevented from interfering with each other.

  Further, as shown in FIG. 1, the angle between the backrest 102 and the seat 101 is substantially 90 degrees, and the angle between the leg 103 and the seat 101 is different. When the angle between them is approximately 90 degrees, the angle β between the floor surface 110 and the backrest 102 is in the range of 25 degrees to 60 degrees.

  By setting the angle β between the floor surface 110 and the backrest 102 to such an angle, the weight of the upper body can be substantially applied to the backrest 102 when sitting on the chair 100. It can be used even when there is no burden on the waist and there is a backache.

  Since the present embodiment is configured as described above, the angle between the backrest 102 and the seat 101 is approximately 90 degrees, and the angle between the leg 103 and the seat 101 is approximately 90 degrees. So that you can take a comfortable sitting position.

  FIG. 4 is a side sectional view of the chair 200 according to the second embodiment of the present invention.

  The chair 200 includes a seat 101, a backrest 102, a leg 103, and a support 204.

  Here, the chair 200 according to the present embodiment is different from the chair 100 according to the first embodiment in that the configuration of the support portion 204 and the point that the support portion 204 is detachable are different. Hereinafter, only these points will be described.

  The support portion 104 in the first embodiment is formed by covering the surface of a support portion frame 105D made of an aluminum pipe with a cover 107, but the support portion 204 in the present embodiment is formed only of an aluminum pipe. And a supporting portion frame 205D made of

  Further, the support portion 104 in the first embodiment is formed by the first portion 104a and the second portion 104b, but the support portion 204 in the present embodiment is formed from the vicinity of the center of the support portion 204 to the backrest portion 102. It is curved in an arc shape toward the direction.

  In this manner, by bending the support portion 204, the ground contact position between the support portion 204 and the floor surface 110 is far away from the joint portion between the seat portion 101 and the backrest portion 102, as in the first embodiment. Thus, even when a large load is applied to the backrest 102, the chair 100 can be prevented from being turned over in the direction of the backrest 102.

  Further, as shown in FIG. 5 (rear view of the chair 200), the support portion 204 in the present embodiment is configured such that the protruding end 204 a of the support portion 204 is fitted to the fitting recess 210 provided in the backrest portion 102. By being fitted, it is made detachable.

  Therefore, even when the angle between the seat portion 101 and the backrest portion 102 is set to 180 degrees, for example, the support portion 204 does not collide with the backrest portion 102 and is not obstructed.

  In the chairs 100 and 200 according to the embodiment described above, the seat portion 101, the backrest portion 102, and the leg portion 103 are composed of a seat frame 105A, a backrest frame 105B, and a leg frame 105B made of an aluminum pipe. Is formed by covering the upper surface with a cushion 106 made of urethane resin, but is not limited to such a configuration. For example, instead of an aluminum pipe, a resin pipe or another metal pipe may be used. It is also possible to use a pipe, and it is also possible to form these frames 105A, 105B, 105C by plate-like members other than the pipe. Furthermore, the cushion can be attached not only to the upper surface but also to the lower surface of these frames 105A, 105B, and 105C, and can be formed of a material other than urethane resin.

FIG. 2 is a side sectional view of the chair 100 according to the first embodiment. FIG. 2 is a side sectional view of the chair 100 according to the first embodiment. FIG. 2 is a rear cross-sectional view of the chair 100 according to the first embodiment. FIG. 7 is a side sectional view of a chair 200 according to a second embodiment. The rear view of the chair 200 which concerns on 2nd embodiment.

Explanation of reference numerals

100, 200 Chair 101 Seat 102 Backrest 103 Leg 104, 204 Support 107 Cover 108A First ratchet connector 108B Second ratchet connector 210 Fitting recess

Claims (2)

A seat having an area where a human can sit,
A backrest having an area on which a human can lean,
A leg on which a human can place the leg below the knee,
A support,
A first rotating mechanism for connecting the backrest portion to the seat portion so as to be rotatable around a first side of the seat portion and fixing the backrest portion at a desired angle with respect to the seat portion; When,
The leg portion is rotatable with respect to the seat portion around a second side opposed to the first side of the seat portion, and on the opposite side of the seat portion from the backrest portion. A second rotating mechanism for coupling and fixing the leg at a desired angle with respect to the seat;
A chair comprising
The first rotation mechanism, the angle between the backrest portion and the seat portion within a range from the first angle to 180 degrees, the backrest portion is rotated with respect to the seat portion,
The second rotation mechanism, the angle between the leg and the seat is within a range from the second angle to 180 degrees, the leg is rotated with respect to the seat,
The support portion is attached to the seat portion so as to extend in a direction opposite to the second side from the first side of the seat portion,
The first angle is 85 degrees to 95 degrees,
The seat chair, wherein the second angle is between 85 degrees and 95 degrees. A first portion extending in a direction opposite to the second side from the first side, and a second portion bent in a direction of the backrest portion with respect to a direction in which the first portion extends, The chair according to claim 1, wherein the chair comprises:

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