JP2006334025A - Sitting furniture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sitting furniture which enables a person when sitting on it to relax, can tighten his/her pelvis and as a result can correct distortion of the pelvis and at the same time straighten bow-legs. <P>SOLUTION: A pair of expanded sections 30a is installed on each right and left side of the sitting section 20 of a cushion 10 in a way that it is placed abut on both right and left thighs of a person sitting on a sitting section 20 and is depressed by a suppressing force in a opposite direction against each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to seating furniture for a person to sit on, such as a chair, a chair, and a cushion.

  It has been pointed out that pelvic displacement and distortion may cause various disorders on the body such as adult diseases and visceral disorders. As a means for correcting such a pelvic shift, a curdle and a belt are known. These can be worn on the human body to obtain a correction effect.

  However, when a girdle or belt is always worn, a feeling of pressure is always felt, so that a very relaxed feeling cannot be obtained and a pelvic displacement (distortion) can be easily corrected.

  It is an object of the present invention to provide a feeling of relaxation when a person is seated and to tighten the pelvis, thereby correcting the distortion of the pelvis and making the O-leg straight. To provide furniture.

  In order to solve the above problems, the invention of claim 1 is characterized in that the left and right sides of the seat are abutted against the left and right thighs of the person seated on the seat and are pressed by pressing forces in opposite directions. The gist of the present invention is a seating furniture characterized by providing a pair of pressing portions.

  According to a second aspect of the present invention, in the first aspect, the pressing portion includes an elastic member and a support frame that backs up the elastic member, and the pressing portion is elastic to the thigh of a seated person. It arrange | positions so that it may contact | abut with respect to the said support frame through a member.

  Invention of Claim 3 forms the armrest part in the right-and-left both sides of the seat part in Claim 1, and the press part is an elastic bulging part bulged from the armrest part, The bulging portion is characterized in that the left and right thighs of a person can be clamped.

  According to a fourth aspect of the present invention, in the second aspect of the present invention, the seat includes a waist pad portion, and the left and right thighs of the person are supported by the pair of pressing portions in a state where the waist of the person seated on the waist pad portion is applied. The seating furniture according to claim 2, wherein the seating furniture is arranged so as to be pinched.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the front portion is formed to have a narrower interval than the rear portion.
(Function)
According to the invention of claim 1, seating furniture such as a chair on which a person sits, a sitting chair, and a cushion is seated as necessary, and a person can sit on these to obtain a relaxed feeling. It is easy to be done. Further, when the pair of pressing portions abut against the left and right thighs of the person seated on the seat portion, a reaction force works. Since the reaction force includes a pressing force component directed in opposite directions with respect to the left and right thighs, the pressing force component can tighten the pelvis. As a result, the pelvic distortion is compensated, and O Legs can be straightened.

  According to the invention of claim 2, the pressing portion is arranged so as to contact the support frame via the elastic member with respect to the thigh of the seated person, so that the thigh of the seated person is When contacting the pressing portion, the reaction force can be suitably generated by the support frame.

  According to the invention of claim 3, the left and right thighs of the person seated on the seat can be clamped by the pair of bulging portions, whereby the pelvis can be tightened. As a result, the pelvis is distorted. Can be corrected and the O-leg can be straightened.

  According to the invention of claim 4, the spine can be straightened by hitting the waist of a person seated on the hip pad, and the pelvic distortion can be comprehensively combined with the correction by the reaction force of the left and right thighs. Can be compensated for.

  According to the invention of claim 5, when the person sits down by arranging the gap between the pair of pressing parts so that the distance between the front parts is narrower than that between the rear parts, The thigh can be smoothly inserted between the pair of pressing portions.

  According to the present invention, when a person is seated, a relaxed feeling can be obtained and the pelvis can be tightened. As a result, the distortion of the pelvis can be corrected, and the O leg can be straightened. Play.

  A first embodiment in which the present invention is embodied as a cushion as seating furniture will be described below with reference to FIGS. In the present specification, as shown in FIG. 1, when a person is seated on the sitting furniture, the direction in which the person is facing is referred to as the front, and it is referred to as right and left and back with respect to the person.

As shown in FIG. 1, the cushion 10 includes a seat portion 20, armrest portions 30 provided on both left and right sides of the seat portion 20, and a waist pad portion 40, and is formed symmetrically.
As shown in FIGS. 2 and 3, the seat 20 includes a seat frame 21, and a plate-like cushion material 22 made of an elastic material such as elastic urethane foam disposed and fixed on the seat frame 21. A plate-shaped intermediate plate 23 made of wood or the like for lifting the front portion of the cushion material 22, and a cover 24 made of cloth or the like for covering the seat frame 21 and the cushion material 22. The seat frame 21 is a lightweight frame in which metal wires or the like are arranged in a lattice pattern or the like with respect to a metal frame. By disposing the intermediate plate 23 on the front part of the seat frame 21, the cushion material 22 is configured such that the front part is high and the rear part is low, as shown in FIG. For this reason, the seat part 20 is provided with the slope inclined toward the rear part side.

  The armrest portion 30 includes a side frame 31, cushion materials 32, 32 a, and 34, and a cushion material 33 disposed on the outer surface side of the side frame 31. 31, cushioning materials 32, 32a, 33, 34 are covered. The side frame 31 is a lightweight frame in which metal wires or the like are arranged in a lattice pattern or the like with respect to a metal frame, and is integrally connected to both the left and right side portions of the seat frame 21. Has been. As shown in FIG. 2, the cushion material 32 is formed in a semi-cylindrical shape from an elastic material such as elastic urethane foam, and a curved surface having a semicircular cross section faces inward with respect to the inner surface of the side frame 31. Are arranged as follows. The cushion material 32 a is formed in a plate shape from an elastic material such as elastic urethane foam, and is integrally connected to the cushion material 32. The cushion material 32 a is fixed to the side frame 31.

  The cushion material 34 is formed into a sheet shape from an elastic material such as elastic urethane foam, and in the cover 24, the semi-cylindrical surface of the cushion material 32, the cushion material 32 a, the side frame 31, and the cushion material 33. Is arranged so as to cover the lower surface of the inner side surface of the side frame 31.

  The height of the armrest portion 30 from the upper surface of the rear portion of the seat portion 20 is set to a height of about 15 to 20 cm when the elbow E is placed as shown in FIG. 6 when a person (for example, an adult) is seated on the seat portion 20. Yes. In addition, this height is not limited to the said numerical value, You may set suitably according to the magnitude | size of the person who uses this cushion.

  Further, the pair of cushion members 32 are arranged so that the front part is opened and the rear part is narrowed when viewed in plan as shown in FIG. For example, the front interval may be about 40 cm, and the rear interval may be about 25 cm. Thus, the interval between the pair of armrests 30 is narrower than that of a general chair with an armrest for adults. A portion of the armrest portion 30 where the cushion material 32 is disposed is a bulging portion 30a as a pressing portion. That is, in the case of a conventional general chair provided with an armrest portion for adults, an adult can sit with a margin without touching the armrest, whereas in this embodiment, when sitting The bulging portion 30a of the armrest portion 30 can be seated against the elasticity of the armrest portion 30 (especially the cushion material 32) in a state of interfering with the thigh and the heel.

  Further, as shown in FIG. 2, a retreat space T in which the thigh is retracted is formed between the bulging portion 30 a of the armrest portion 30 and the upper surfaces of the left and right side portions of the seat portion 20. Note that the vertical height of the evacuation space T is shorter than the maximum diameter of a general adult thigh. When seated as shown in FIG. It is configured to be pressed and deformed upward.

Here, the side frame 31 corresponds to a support frame, and the cushion materials 32 and 34 correspond to elastic members.
The waist pad portion 40 includes a waist pad frame 41, a thin plate-like cushion material 42, and a cushion material 43 disposed on the rear surface side of the waist pad frame 41. The frame 41 and the cushion materials 42 and 43 are covered. The waist support frame 41 is a lightweight frame in which metal wires or the like are arranged in a grid pattern or the like with respect to a metal frame, and is integrally connected to the rear side portion of the seat frame 21. It is installed. As shown in FIG. 3, the cushion material 42 is formed in a plate shape from an elastic material such as elastic urethane foam, and is fixed to the front side surface of the waist support frame 41.

  As shown in FIG. 1, in the waist pad portion 40, unlike the armrest portion 30, there is nothing corresponding to the bulging portion 30a that swells in a semi-cylindrical shape. Is formed. The front and rear lengths of the storage space K are set to be slightly shorter than the front and rear general (ie, average) lengths on the left and right sides of the adult's waist. Moreover, the height of the waist pad portion 40 is set to a height sufficient for the entire waist pad portion 40 to hit the waist.

Now, the operation of the cushion 10 configured as described above will be described.
When a person H sits on the cushion 10, the heel part Dn of the person H is placed on the upper surface of the rear part of the seat part 20 as shown in FIG. 6, and both left and right thigh parts Dl and Dr are placed on the seat part 20. Place on top of front. When sitting on the seat part 20 in this way, the pair of bulging parts 30a are narrower than the width of the buttocks, the width of the waist, and the total width of the left and right thighs Dl and Dr. However, the bulging portion 30a is elastically deformed to allow the left and right thigh portions Dl and Dr to be seated on the seat portion 20. The state in which the person H is seated in this way is shown in FIGS. As shown in FIG. 5, the left and right thighs are partially retracted into the retreat space T. In addition, the left and right part of the waist enters the storage space K. Then, as shown in FIG. 5, the pair of bulged portions 30 a press the left and right thighs Dl and Dr of the person H in opposite directions.

  That is, when both the left and right thighs Dl and Dr are pressed against the side frame 31 via the cushion members 32 and 34 of the bulging portion 30a, a reaction force acts, and the reaction force is It acts as the main pressing force (that is, pinching force) for both thighs Dl and Dr. In addition, although the elastic force by the cushion material 32 also becomes a pressing force, in this embodiment, when the general adult uses, the reaction force at the time of pressing contact | abutting to the side frame 31 is the cushion material 32. It is set by the arrangement relationship of each member and the selection of the material having the elastic force so as to be larger than the pressing force by the elastic force. Since the pair of side frames 31 face each other as shown in FIG. 2, the reaction forces acting from the side frames 31 are directed in opposite directions.

  Then, as shown in FIG. 5, the left and right thighs Dl and Dr are pushed from both the left and right sides together with a part of the left and right thighs retracting into the retreat space T. Pressure acts simultaneously, and even if there is a shift (distortion) in the pelvis B of the person H as shown in FIG. 4B, it can be corrected (see FIG. 4A).

  Also in the case of a person H with an O-leg, the left and right thighs Dl and Dr are pressed from both the left and right sides by the pair of bulging portions 30a, so that the knee is naturally tightened and corrected. Thus, in this embodiment, the bulging part 30a which has an elastic member supports the pelvis B from the left-right both sides.

  As shown in FIGS. 3 and 6, in the seat portion 20, the cushion material 22 is elastically deformed by the weight of the person H. In addition, the length of the front and rear of the storage space K is set to be slightly shorter than the front and rear general (ie, average) lengths of the left and right sides of an adult's waist. When seated, the back is subjected to a pressing force (that is, pinching pressure) from the rear portion of the bulging portion 30a and the waist pad portion 40, and the pelvis B is also compensated for distortion in the front-rear direction. The main pressing force in this case is the reaction force from the waist pad frame 41, the reaction force from the cushion material 32 to which the side frame 31 is fixed, and the elastic force of the cushion material 32.

As a result, the waist of the person H is forced to follow the waist pad 40 and is corrected so that the spine (spine) is straight when viewed from the front, coupled with the correction of the pelvis B described above. .
Further, in this embodiment, unlike a conventional cushion whose shape collapses when a person H sits down, the contents are structured to include a lightweight frame, so that it is difficult to lose shape and the back can be stabilized and relaxed.

(Second Embodiment)
Next, a second embodiment in which the seating furniture is embodied in the seat chair 100 will be described with reference to FIGS.

  As shown in FIG. 7, the seat chair 100 includes a seat portion 200, armrest portions 300 provided on both left and right sides of the seat portion 200, a backrest portion 400, and a footrest portion 500. Is formed.

  The seat portion 200 includes a seat frame 210 made of a lightweight frame in which metal wires or the like are arranged in a grid pattern or the like with respect to a metal frame, and a resilient urethane foam that is disposed and fixed on the seat frame 210. And a cover 240 made of cloth or the like covering the seat frame 210 and the cushion material 220.

  The armrest portion 300 includes a side frame 310, cushion materials 320 and 330, and a cushion material 340 disposed on the outer surface side of the side frame 310. The cover 240 allows the side frame 310, The cushion materials 320, 330, and 340 are covered. The side frame 310 is a lightweight frame in which metal wires or the like are arranged in a grid pattern or the like with respect to a metal frame, and is integrally connected to both the left and right sides of the seat frame 210. Has been. As shown in FIGS. 8 and 9, the cushion material 320 is formed in a semi-cylindrical shape from an elastic material such as elastic urethane foam, and a curved surface having a semicircular cross section is formed on the inner surface of the side frame 310. It is arranged to head towards. The cushion material 330 is formed in a sheet shape from an elastic material such as elastic urethane foam, and is disposed in the cover 240 so as to cover the upper surface and the outer surface of the side frame 310 and the cushion material 340.

  The height of the armrest portion 300 from the upper surface of the seat portion 200 is set to about 15 to 20 cm at which the elbow E is placed as shown in FIG. 11 when a person (for example, an adult) sits on the seat portion 200. . In addition, this height is not limited to the said numerical value, You may set suitably according to the magnitude | size of the person who uses this cushion.

  The distance between the pair of armrests 300 is narrower than that of a general chair with an armrest for adults. A portion of the armrest portion 300 where the cushion material 320 is disposed is a bulging portion 300a as a pressing portion. Also in the second embodiment, the distance between the bulging portion 30a and the bulging portion 300a in the first embodiment is the same, and the function thereof is the same, so the functional description of the bulging portion 300a is omitted. . In the second embodiment, unlike the first embodiment, the evacuation space T is not formed, and as shown in FIG. 12, the thigh can be pressed at the most protruding portion of the bulging portion 300a.

Here, the side frame 310 corresponds to a support frame, and the cushion materials 320 and 330 correspond to elastic members.
The backrest 400 includes a backrest frame 410 and a cushioning material 420 disposed on the front side and the backside of the backrest frame 410. The cover 240 covers the backrest frame 410 and the cushioning material 420. . The backrest frame 410 is a lightweight frame in which metal wires or the like are arranged in a grid pattern or the like with respect to a metal frame body, and is connected to the rear portion of the seat frame 210 via a reclining mechanism portion 270. Yes.

  The reclining mechanism 270 is a known reclining mechanism that can set the backrest frame 410 relative to the seat frame 210 within a predetermined angle range. In the present embodiment, the reclining mechanism unit 270 causes the backrest frame 410 to range from an angular position close to 90 degrees to an angular position with respect to the seat frame 210, as shown in FIG. Thus, it is possible to position and hold at that position for each predetermined angle. The reclining mechanism unit 270 is known and is not a main part of the present invention, and thus detailed description thereof is omitted. The cushion material 420 is formed of an elastic material such as elastic urethane foam, and is fixed to both front and rear side surfaces of the backrest frame 410.

  The footrest portion 500 includes a footrest frame 510 and a cushion material 520 disposed on the upper surface side and the lower surface side of the footrest frame 510, and the cover 240 allows the footrest frame 510 and the cushion material 520 to be disposed. Covered. The footrest frame 510 is a lightweight frame in which metal wires or the like are arranged in a grid pattern or the like with respect to a metal frame, and the same principle as the reclining mechanism portion 270 with respect to the front portion of the seat frame 210. It is connected via a mechanism portion 530 that functions in the above.

  As shown in FIG. 10, the mechanism unit 530 causes the footrest frame 510 to move downward with respect to the seating frame 210 and at a predetermined angular position obliquely downward with respect to the seating frame 210. It can be set to be positioned and held in steps between the positions that are 180 degrees (in FIG. 10, when the seat frame 210 is horizontal, the horizontal position). The mechanism portion 530 is also well known and is not a main part of the present invention, and thus detailed description thereof is omitted.

  Now, also in the seat chair 100 of 2nd Embodiment, if the person H sits down on the seat chair 100, a pair of bulging part 300a will be the width | variety of a buttocks, the width | variety of a waist, and both right and left thigh parts D1, Dr. However, the bulging portion 30a is elastically deformed to allow the right and left thighs Dl and Dr to be seated on the seat portion 200. When the person H is seated in this way, as shown in FIGS. 11 and 12, the pair of bulging portions 300a press the left and right thighs Dl and Dr of the person H in opposite directions.

  That is, when both the left and right thighs Dl and Dr are pressed against the side frame 310 via the cushion members 320 and 330 of the bulging portion 300a, a reaction force acts, and the reaction force is It acts as the main pressing force (that is, pinching force) for both thighs Dl and Dr. In addition, although the elastic force by the cushion material 320 also becomes a pressing force, in this embodiment, when a general adult uses, the reaction force when pressing and contacting the side frame 310 is the cushion material 320, It is set by the arrangement relationship of each member and selection of the material having the elastic force so as to be larger than the pressing force by the elastic force by 330. Since the pair of side frames 310 are opposed to each other as shown in FIG. 9, the reaction forces acting from the side frames 310 are directed in opposite directions.

  The left and right thighs Dl and Dr can be compensated even if there is a shift (distortion) in the pelvis B of the person H as shown in FIG. (See FIG. 4 (a)). In the case of a person H with O-legs, the left and right thighs Dl and Dr are pressed from the left and right sides by the pair of bulging portions 300a, so that the knee is naturally tightened and corrected. Thus, also in 2nd Embodiment, the bulging part 300a which has the cushion materials 320 and 330 as an elastic member supports the pelvis B from right-and-left both sides.

  Moreover, according to 2nd Embodiment, since the whole body of the person H can also be wrapped from the back by the shape setting of the cushion materials 420, 220, and 520 of the seat 100, it is possible to enjoy a feeling of relaxation. Is possible.

  Further, since the reclining mechanism unit 111 and the mechanism unit 530 can be arranged flat, according to the seat chair 100 of the present embodiment, the seat chair can be changed into a pedestal. When in a state, you can experience full body stretch.

(Third embodiment)
Next, a third embodiment in which the seating furniture is embodied in the chair 600 will be described with reference to FIGS.

As shown in FIG. 13, the chair 600 includes a seat 620, a backrest 640, and legs 650 that support the seat 620, and is formed symmetrically.
The seat portion 620 includes a seat portion frame 621 formed in a predetermined frame body with a metal wire or the like. As shown in FIG. 15A, a base 626 is fixed to the center of the front surface of the seat frame 621. A leg 650 is fixed to the lower portion of the seat frame 621 to support the seat frame 621. The seat frame 621 corresponds to a support frame.

  As shown in FIG. 15A, when the chair 600 is viewed from the front, the cushion material 622, 623, the cushion material 622, 623, and a part of the seat frame 621 are placed on the seat frame 621 on the left and right. , A cushion material 625 covering the cushion material 622, and a cover 624 made of a cloth or the like covering the cushion material 622. The cushion materials 622, 623, and 625 are made of an elastic material such as elastic urethane foam. The cushion material 622 is formed in a semi-cylindrical cross section and corresponds to an elastic member.

  As shown in FIG. 15, the cushion members 622 and 623 arranged on the left and right sides are fixedly supported with respect to a seat frame 621 that extends obliquely upward and leftward from the center, respectively. As a result, when the left and right cushion members 622 are pressed by the left and right thighs Dl and Dr, a reaction force is generated in the seat frame 621 via the cushion members 622, and the left and right thighs The reaction force acts as a pressing force on Dl and Dr. In addition, each reaction force generated in the seat frame 621 via the left and right cushion members 622 is decomposed in a vector form because the portions supporting the cushion members 622 are arranged obliquely on the sides facing each other. Then, they have mutually opposite direction components. The seat frame 621 corresponds to a support frame.

  The cushion members 622 and 623 are provided as a pair on the left and right sides in the seat portion 620. With these cushion materials 622 and 623, the seat portion 620 is the upper surface of the left and right side portions as shown in FIG. On the other hand, the seating surface is high, and the center seating surface is lowered by forming a concave portion 810 in a semicircular arc shape as shown in FIG. Further, the concave portion 810 is made narrower as it goes to the rear or down. That is, when the person H is seated, the heel part Dn is naturally submerged by being guided by the recessed part 810. When a person H sits in the recess 810, the lower portion of the recess 810 is supported by the base 626.

  Moreover, the part where the left and right seating surfaces are high serves as a pair of pressing portions 700. The distance between the pair of pressing portions 700 is such that each of the left and right thighs of a general adult can be pressed obliquely as shown in FIG. Further, as shown in FIG. 15B, the pressing portion 700 of the seat portion 620 is arranged in an oblique manner so that the rear portion side is lower than the front portion.

  Further, as shown in FIG. 14, a through portion 800 opened downward and rearward is formed between the seat portion 620 and the backrest portion 640 described later. As shown in FIG. 14, the penetrating part 800 has a size that allows a general (average) buttocks Dn of an adult to enter.

  The backrest 640 is fixed via a support member 660 extending from the seat frame 621. The backrest portion 640 includes a backrest frame 655, cushion materials 652, 653 supported on the entire surface of the backrest frame 655, and a cover 654 made of cloth or the like provided to cover them.

  As shown in FIG. 15, the backrest frame 655 is provided symmetrically about a center line (not shown) extending in the vertical direction, and a pair of the backrest frames 655 are arranged, and a cushion material is provided at a portion corresponding to each backrest frame 655. By disposing 652, a bulge F is formed on the front surface of the backrest 640. When the back rests along the center line of the backrest portion 640 by the pair of left and right bulges F by the cushion material 652, the spine of the person H is supported so as to be straight.

  In the chair 600 according to the third embodiment configured as described above, when the person H is seated, the pair of pressing parts 700 are elastically deformed by the weight of the person H in the seat part 620 with the recess 810 as the center. Sink.

  And since the part which supports this cushioning material 622 is arrange | positioned diagonally on the side which mutually faces, each reaction force Fa and Fb which arose to the seat part frame 621 via the right and left cushioning material 622 is perpendicular | vertical. When the vector and horizontal directions are decomposed, they have opposite direction components f1 and f2. Therefore, when the person H is seated in this way, as shown in FIG. 16, the pair of pressing parts 700 of the seat part 620 causes the left and right thighs Dl and Dr of the person H to have components in opposite directions. Pressing in opposite directions by pressing force.

  The left and right thighs Dl and Dr can be compensated even if there is a shift (distortion) in the pelvis B of the person H as shown in FIG. (See FIG. 4 (a)). Also, in the case of a person H with an O-leg, the left and right thighs Dl and Dr are pressed from both the left and right sides by a pair of depressed 700, so that the knee is naturally tightened and corrected. Thus, also in 3rd Embodiment, the press part 700 which has the cushioning material 622 as an elastic member supports the pelvis B from right-and-left both sides.

  Thus, in 3rd Embodiment, since the recessed part 810 of the seat part 620 becomes narrow so that it goes down, the collar part Dn can be naturally drawn in and supported by the inside of the recessed part 810 with a weight.

  Further, since the penetrating portion 800 formed in the seat portion 620 is positioned as shown in FIG. 14, the burden on the seat bone is reduced, and excessive pressure is not applied to the seat bone. In this way, in the third embodiment, distortion and spread of the pelvis can be naturally compensated.

  Furthermore, in the third embodiment, the two bulges F provided on the backrest 640 can support the spine from both sides, so that the posture can be kept straight while loosening the stiff spine. In addition, the structure in which the buttocks Dn sink while supporting the back of the person H can compensate for the distorted posture without difficulty and can sit with a relaxed feeling.

In addition, this invention is not limited to the said embodiment, You may change as follows.
In the second embodiment, the pair of armrests 300 are fixed, but both armrests 300 may be provided so that their positions can be adjusted in the direction of approaching and separating from each other. The mechanism for allowing the position to be adjusted can be realized by a slide mechanism or a rotation mechanism, and it is preferable if it can be stepped by a notch or the like. In this way, the pressing force on the thigh can be adjusted by the user.

The perspective view of the cushion of a 1st embodiment. The principal part side view of the cushion of 1st Embodiment. The principal part side view of the cushion of 1st Embodiment. (A), (b) is explanatory drawing which shows the state of a human pelvis. Explanatory drawing which shows the effect | action of the cushion of 1st Embodiment. Explanatory drawing which shows the effect | action of the cushion of 1st Embodiment. The perspective view of the seat chair of 2nd Embodiment. Sectional drawing of the principal part of the seat chair of 2nd Embodiment. Sectional drawing of the principal part of the press part of 2nd Embodiment. The longitudinal cross-sectional view of the seat chair of 2nd Embodiment. Explanatory drawing which shows the effect | action of 2nd Embodiment. Explanatory drawing which shows the effect | action of 2nd Embodiment. The perspective view of the chair of 3rd Embodiment. Explanatory drawing which shows the effect | action of the chair of 3rd Embodiment. (A) is principal part sectional drawing of a chair, (b) is the 1-1 sectional view taken on the line of (a). Explanatory drawing when showing the effect | action of the chair of 3rd Embodiment, and carrying out the cross sectional view by the 2-2 line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Cushion, 20 ... Seat part, 30 ... Armrest part, 30a ... Swelling part (pressing part)
31 ... Frame for side part (support frame), 32, 34 ... Cushion material (elastic member)
40 ... waist rest part, 200 ... seat part, 300 ... armrest part, 310 ... side frame (support frame), 320, 330 ... cushion material (elastic member), 620 ... seat part, 621 ... frame for seat part ( Support frame), 622... Cushion material (elastic member).

Claims (5)

  Seating furniture characterized in that a pair of pressing portions are provided on both the left and right sides of the seat portion so as to come into contact with both left and right thighs of a person seated on the seat portion and to press with opposite pressing forces. . The pressing portion includes an elastic member and a support frame that backs up the elastic member.
The seating furniture according to claim 1, wherein the pressing portion is disposed so as to abut against the support frame via the elastic member with respect to a thigh of a seated person. Forming armrests on the left and right sides of the seat,
2. The pressing portion according to claim 1, wherein the pressing portion is an elastic bulging portion bulging from the armrest portion, and the bulging portion is disposed so as to be able to pinch both left and right thighs. Seating furniture as described.   The seat part includes a waist pad part, and is arranged so that the left and right thighs of the person can be clamped by the pair of pressing parts in a state where the waist of the person seated on the waist pad part is applied. The seating furniture according to claim 2.   The seating furniture according to any one of claims 1 to 4, wherein the pair of pressing portions are formed such that a space between the front portions is narrower than that between the rear portions.

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