JP2007000570A - Chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair with which a user naturally takes a posture of bending the hip joint and straightening the back and learns a right forward-bent sitting posture of bending the hip joint. <P>SOLUTION: When a user sits on a chair deeply until user's back touches the back of the chair, user's pelvis is supported along the back and user's spine above the pelvis is straightened. When the user takes a forward-bent posture, the right sitting forward-bent posture is to put user's pelvis forward, bend user's hip joint deeply, and keep user's spine above the pelvis straight. To have the user sit deeply in tone's way, the chair of this invention has a seat slanted backward and a roller on the seat so that user's pelvis naturally slides back and is supported on the back of the seat. When the user bends forward, user's pelvis is contained in a pelvis container made on the rear part of the seat and is supported along the lower part of the back of the seat to straighten the spine above the pelvis. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention provides a conventional chair with a recess in the rear part of the seating surface, and a roller installed on the seating surface, so that the pelvis is naturally slid into the recess in the rear part of the seating surface and stored. It is related to a chair that has been improved so that a good sitting posture with a stretched posture can be made naturally.

Conventional chairs often work by bending their waists and back muscles, particularly when working at desks, and if the user sits for a long time, the waist may be burdened. A conventional health chair for posture correction (Japanese Patent Laid-Open No. 08-336437) has problems such as a burden on the knee and a way to sit shallowly without bending the hip joint when tilting forward.
JP 08-336437 A

  The sitting method that does not put a burden on the waist is a method in which only the hip joint (base of the foot) is bent and the waist and back muscles are straightened. In the conventional health chair (Japanese Patent Laid-Open No. 08-336437), the hip surface is tilted forward, so that the hip joint is not bent greatly (about 90 °), and the hip bone is straight from the pelvis, which is necessary for desk work. Can take an inclined posture. In this method, there is a problem that the knee is burdened and the correct forward leaning posture in which the hip joint is greatly bent (about 80 to 60 °) cannot be acquired. In the present invention, a chair that naturally bends the hip joint and stretches the hips and back muscles even when it is not conscious at the time of sitting, and naturally wears the correct forward leaning posture that seats with the hip joint bent. It solves the problem of obtaining a very simple structure so that it can be used normally at home, etc., on a principle different from that of a conventional health chair.

  Sitting deeply until it is in close contact with the back, the pelvis is supported along the back, and the hips straight from the pelvis. Also, when taking a forward leaning posture, the correct seating and forward leaning method is to tilt the entire pelvis forward and greatly bend the hip joint (about 80 to 60 °), and keep the hips straight from the pelvis. In the present invention, even without being conscious, the seat surface is tilted backward so as to become such a deep seat and a roller is installed on the seat surface so that the pelvis naturally slides in the rear part, Support. When leaning forward, the pelvis was stored in the pelvis storage part provided at the rear part of the seating surface, and the pelvis was supported along the lower part of the waist pad so that the hip bone was straight from the pelvis. The present invention is a chair with the above-described structure, in which the back stretches naturally when seated and the seated posture is good.

  Embodiments of the present invention will be described below.

  1 to 4 are a side view and a perspective view of the first embodiment.

  As shown in Fig. 2, the seat surface (4) is tilted backward, and the front seat surface roller (1) and seat surface roller (14) are installed so that the pelvis naturally slides back and deeply sits. To do. Further, the upper part of the pelvis is supported by the waist pad (8). As a result, the pelvis is supported naturally and the waist is stretched.

  As shown in Fig. 3, when the body is tilted forward such as desk work, the center of gravity once moves toward the front rollers (1) and (14), but the rollers rotate backward because the seating surface tilts backward. Then, the pelvis part moves further rearward and is stored in the pelvis storage part (5). In addition, the pelvis is supported along the lower side of the waist pad (8), and the posture cannot be maintained unless the hip joint is bent greatly. As a result, when leaning forward, it becomes deeper and the waist is stretched.

  As shown in FIG. 4, the elastic backrest support rod (12) tilts backward when tilting backward. Even if the pelvis moves forward, the waist pad (8) comes to a position where the waist is stretched, so that the waist is stretched even when tilted backward.

  As shown in FIG. 5, the seat front roller (1) is fixed by the support (2). The length of the support (2) can be adjusted by changing the position of the stopper (3) according to the user's physique and body shape.

  As shown in FIG. 7, the depth of the pelvis storage part (5) can be adjusted according to the physique and body shape of the user by adjusting the length of the belt (6) with the belt length adjuster (7). .

  As shown in FIG. 8, the positions of the waist rest portion (8) and the backrest (11) can be adjusted according to the user's physique and body shape by changing the positions of the stoppers (10) and (13).

  9 to 11 are types in which the first embodiment is simplified. In the simple type, a smooth material is used for the seating surface portions (1) and (4) as shown in FIG. 11, or a slippery cushion is drawn, so that the body can easily slide backward, and the roller can be omitted.

  12-14 is an example of a sitting chair type. In the seat chair type, as shown in FIG. 14, the center part of the seat surface is raised along the thigh when seated, and the roller (1) is installed at the upper end. A seating surface roller (14) is also installed. Thereby, even if it is a sitting chair type, when a body inclines forward, a pelvis slides into a pelvis storage part (5), and the effect similar to a normal chair is acquired.

The invention's effect

  The present invention has the following effects.

  Because it sits naturally with the waist and back stretched, there is little burden on the waist and it is effective for back pain countermeasures.

  Since you cannot sit down without bending the hip joint, you will learn the correct forward tilt method with the hip joint bent.

  It can be adjusted according to the user's physique and body shape, and can be used by all men and women of all ages.

Perspective view Side view (when seated normally) Side view (when leaning forward) Side view (when seated backward) Structural drawing of the front roller support Structural diagram of bearing roller support Pelvic storage depth adjustment belt structure diagram Structural diagram of supporter for waist rest and backrest Simple type perspective view Side view of simple type (when seated normally) Side view of simple type (at the front leaning seat) Seat chair type perspective view Side view of the chair type (when seated normally) Side view of seated chair type (when leaning forward)

Explanation of symbols

(1) Seat front roller (simple type omits roller)
(2) Seat front roller support rod (3) Seat front roller support rod stopper (4) Seat surface (5) Pelvic storage part (6) Pelvic storage depth adjustment belt (7) Pelvic storage depth adjustment belt length Adjuster (8) Hip rest (9) Hip rest support rod (10) Waist rest stop (11) Backrest (12) Backrest support rod (13) Backrest stop (14) Seat roller (15) Seat roller stopper

Claims (2)

  A chair and a seat with a shape having a recess for storing most of the pelvis at the rear of the seat surface. A function of adjusting the depth of the depression by changing the tightening position of the adjustment belt according to the physique can be provided.   A chair and a seat chair having rollers on the seat surface and the front surface of the seat surface. The roller position of the front part of the seating surface can also be given a function that can be adjusted by changing the position of the roller support according to the physique.

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