JPH01280414A - Furniture for seating - Google Patents

Abstract

PURPOSE:To cause an attitude to be good, and simultaneously, to execute a relaxation by providing longitudinal projecting part to simultaneously support the back and hip to a furniture for seating such as a chair and a legless chair. CONSTITUTION:A projecting part 6 is separated into a first projecting part 7 to support the backbone of a back B and a second projecting part 8 to support a hip H, the separated first projecting part 7 and second projecting part 8 are linked so as to be held turnably and at an arbitrary adjusting angle through an angle adjusting mechanism 9, and simultaneously, the first projecting part 7 is fixed to an arbitrary means approximately in the center of a seat back part 2. At the time of seating on a seat part 3 and leaning to the seat back part 2, since the first projecting part 7 is made into a projecting shape to the seat back part 2 in the position approximately in the center of the seat back part 2, for the center of the back B, the hip is made to abut on the first projecting part 7, and as a result, the correct posture can be maintained while the chest is naturally opened. Since the second projecting part 8 is made to abut on the hip H and always supports the hip H, a space is prepared between the hip H and seat back part 2, a load cannot be applied to the hip H, and thereby, fatigue will not be generated even after seating for a long time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to furniture for sitting, and particularly to backrests of chairs, chairs, etc.

[Prior Art] Generally, chairs, seat chairs, etc. are designed to allow you to sit comfortably by leaning against the backrest. However, if you sit with your back arched or lean over the seat too shallowly, it may cause an unnatural posture. It's not just that you're tired and can't sit for long periods of time (it also has a negative impact on your health).

Therefore, when sitting, it is important to open your chest as much as possible, stretch your back, and relax as much as possible. This posture relieves your body's fatigue and allows you to relax. Additionally, by relaxing the muscles, the nerves can also be rested, which helps relieve stress.

However, it is generally extremely difficult to take such postures as opening the chest and stretching the back.

Therefore, the present applicant previously proposed a seat chair with a vertically long raised part along the center of the backrest (Utility Model Act 1986-444).
No. 31).

With the above-mentioned device, when you lean back on the chair, your spine will hit the bulge and your chest will naturally open and your back muscles will be straightened, resulting in a good posture (and also good for your health).
There are benefits such as being able to relax, and increasing concentration as the center of body relaxation is firmly felt in the spine, which is the trunk of the body.

[Problems to be Solved by the Invention] However, when a person sits on a chair, chair, etc., the angle between the line X of the back B and the line Y of the waist H is different, as shown in FIG. When leaning against L, a space S is created between the waist F1 and the backrest L.

There was a drawback that a burden was placed on the lower back region 11. Especially the backrest L
This was noticeable in reclining chairs with a predominant tilt.

Furthermore, the proposed seating furniture provided with the raised portions was limited to chairs.

[Means for Solving the Problems] The present invention was invented in view of the above problems, and is a method of providing furniture for sitting, such as a chair or a seat, with a vertically long convex portion that simultaneously supports the back and lumbar region. be.

[Function J] With the above configuration, 1. When you lean on the sitting furniture of the present invention, your spine will come into contact with the convex part and your chest will naturally open and your back muscles will be straightened, improving your posture and supporting your lower back at the same time. This means that it does not put any strain on your lower back, allowing you to relax even more, and is also beneficial for your health.

[Example J Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a perspective view showing a first embodiment in which the seating furniture of the present invention is applied to a known reclining chair, and FIG. 2 is a side view thereof. In these figures, the symbol l indicates a chair, a seat chair,
Furniture for sitting, such as a chaise longue; 2 is the backrest of the chair l;
3 is a seat part, 4 is a leg part, 5 is a known angle adjustment mechanism for the chair l, and 6 is a vertically long convex part that supports the back B and lumbar part H of the person at the same time.

The convex portion 6 of this embodiment is a first convex portion 7 that supports the spine of the back B.
and a second protrusion 8 that supports the waist H, and the separated first protrusion 7 and second protrusion 8 are rotatable and held at any adjustment angle via an angle adjustment mechanism 9. The first convex portion 7 is fixed approximately at the center of the backrest portion 2 by any means.

The first convex portion 7 and the second convex portion 8 are both composed of elastic materials 7a, 8a such as urethane foam, and exterior sheets 7b, 8b such as cloth, vinyl leather, etc. that cover the elastic materials 7a, 8a. There is. Further, the first convex portion 7 and the second convex portion 8 may have any shape as long as the cross section thereof is a rectangular, trapezoidal, semicircular, or other shape that is convex with respect to the back.

The angle adjustment mechanism 9 may have any structure such as a known reclining device combining gears and ratchets, and an example thereof is shown in FIG. 3.

In this figure, 10 is the shaft, 11 is the handle, 12a.
12b is a boss, 13 is a bearing, 14 is a screw, 15 is a spline, 16 and 17 are metal fittings attached to the side end surfaces of the first convex portion 7 and second convex portion 8, respectively, and 18 is a leaf spring.
When turning 1, the boss 12a turns together, and the boss t2a
The second convex portion 8 rotates via a metal fitting 17 that is integrated with the metal fitting 17.

According to the sitting furniture of this embodiment, when sitting on the seat part 3 and leaning against the backrest part 2, the first convex part 7 touches the backrest part 2.
Since it has a convex shape with respect to the backrest part 2 at approximately the center position, the center of the back B (lumbar vertebrae, thoracic vertebrae, and back muscles) comes into contact with the first convex part 7, and as a result, the chest naturally opens and corrects The posture can be maintained 6 Also, since the second convex portion 8 always supports the lumbar region H by contacting the lumbar region H, a space is created between the lumbar region H and the backrest portion 2, which prevents the burden from being placed on the lumbar region H. Because of this, you won't get tired even if you sit for a long time.

Furthermore, since the angle adjustment mechanism 9 is configured to be held at any adjustment angle, it can be used by people of any body shape, from adults to children.

FIG. 4 shows an improved version of the first embodiment, in which the first convex portion 7 and the second convex portion 8 are separated, and the angles of the first convex portion 7 and the second convex portion 8 are adjusted. A mechanism 19 that can be easily attached to and detached from the backrest 2 is connected to the convex portion 6 rotatably via the mechanism 9.
This is an example where .

In the illustrated example, this attachment/detachment mechanism 19 is located on the back side of the first convex portion 7 (
Although a structure has been illustrated in which a locking device such as a hook is provided at the upper end of the backrest 2 of an arbitrary chair l, the structure is not limited to this. It may also be provided with adhesive means.

According to this embodiment, the present invention can be carried out extremely easily by simply using the attachment/detachment mechanism 19 such as a locking tool on the backrest of each chair, etc., without changing the structure of existing chairs, seat chairs, etc. It can be converted into a sitting chair, making it extremely practical. Furthermore, if a plurality of convex portions 6 equipped with the attachment/detachment mechanism 19 of this embodiment are prepared and the mechanism is engaged with the backrest of a settee at predetermined intervals, a large number of people can use the device at the same time.

FIG. 5 shows, as in the previous figure, that the convex portion 6 is separated into a first convex portion 7 and a second convex portion 8, and the first convex portion 7 and the second convex portion 8 are adjusted by adjusting the angle.
This is an example in which the first convex portion 7 is rotatably connected via the four sides 9, and a sliding piece 20 is provided on the back side (backrest portion 2 side) of the first convex portion 7.

This sliding piece 20 is inserted into a slit 21 formed in the backrest 2 of the chair 1, and is slid up and down within the slit 21 to adjust its height position.

FIG. 6 and FIG. 7 are diagrams showing a fourth embodiment of the present invention, in which, like the above, the first convex portion 7 and the second convex portion 8 are separated, and the first convex portion 7 and the second convex portion are separated. This is an example in which a convex part 6, which is rotatably connected to a part 8 via an angle adjustment mechanism 9, is directly attached to a seat part 3 so as to serve as a backrest instead of the backrest 2 of a chair l.

In this embodiment, an arm 22 is provided on the seat part 3, and a convex part 6 is connected to the arm 22 via an angle adjustment mechanism 91 similar to that described above to make a reclining type chair. It is also possible to use it as a Tsuho chair without setting it up.

FIG. 8 is a diagram showing a fifth embodiment of the present invention, in which the thickness is such that when the first protrusion 7 is brought into contact with the back B while leaning back, the second protrusion 8 comes into contact with the waist B. This is an example in which D is made sufficiently thicker than the thickness d of the first convex portion 7, and the first convex portion 7 and the second convex portion 8 are integrated and provided on the backrest portion 2 of the chair l.

In this embodiment, a mechanism 23 is provided that allows the convex portion 6 and the backrest portion 2 to be easily attached and detached.

In the example shown in FIG. 1, this attachment/detachment mechanism 23 is provided with a known attachment/detachment tape on the back side of the protrusion 6 (on the side of the backrest 2) and the backrest 2. It is preferable to make both the height and width sufficiently large so that the height and width can be adjusted to suit the body shape of the person sitting.

In this embodiment, the thickness D of the second convex portion 8 is sufficiently thicker than the thickness d of the first convex portion 7 (so that when the back B is brought into contact with the first convex portion 7, the second convex portion 8 is By making contact with the waist B and by making the elastic material 8a of the second protrusion 8 sufficiently elastic, it is possible to support the back B and the waist H at the same time, as in the previous embodiment. It is.

FIG. 9 shows an improved version of the fifth embodiment, in which the thickness D of the second convex portion 8 is made sufficiently thicker than the thickness d of the first convex portion 7, and the first convex portion 7 and the second convex portion This is an example in which a convex part 6 with a convex part 8 integrated therein is directly fixed to a seat part 3 so as to serve as a backrest instead of the backrest 2 of a chair l.

FIG. 1O and FIG. 11 are diagrams showing a seventh embodiment of the present invention,
This is an example in which a protrusion 6 is rotatably provided on the frame 24 of the backrest portion 2 via an arm 25.

In this embodiment, the convex portion 6 is configured to be rotatable as shown by arrow A by the swing shaft 26, and the backrest portion 2 is configured to be rotated by the angle adjuster 15.
When tilted, it can be rotated to the optimal angle to simultaneously support the back B and lumbar region [1].

In addition, a recess 27 is provided in the backrest 2 so that it can be used as a normal chair l, and when the protrusion 6 is not required, the protrusion 6 is stored in the recess 27 as shown by arrow B. It is good to be able to do this.

Note that 28 is a stopper of the arm 21, 29 is an elastic material of the backrest portion 2, and 30 is an exterior sheet of the elastic material 29.

Although all of the embodiments described above are applied to chairs, the present invention is not limited to this, and can be applied to all types of furniture for sitting, such as seat chairs and chaise longues.

Also, if the filler of the convex part 6 (including the case where the convex part 6 is separated into the first convex part 7 and the second convex part 8) is used instead of an elastic material, a solid particle or a fluid can be used, which has the advantage of uniformly adhering to the body. There is.

As necessary for the river, the first convex portion 7 and the second convex portion 8 are attached as described above.
A heat source such as a heater or a warmer may be provided in the convex portion 6 including the convex portion 6 to keep the back B and lower back H that are in contact warm.

[Effects of the Invention] Since the present invention has the above-mentioned structure, the back and hips can be supported at the same time, so you will not get tired even if you sit for a long time, and simply by sitting, your chest will open, your back muscles will be stretched, and you will be able to exert strength. Since you can fully relax, your body will be relieved of fatigue and you will be able to relax. Furthermore, by relaxing the muscles, the nerves can also be rested at the same time, which is helpful in relieving stress.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a first embodiment of the sitting furniture of the present invention, Fig. 2 is a side view thereof, Fig. 3 is an enlarged sectional view showing an example of the angle adjustment mechanism, and Fig. 4 is a perspective view showing the first embodiment of the sitting furniture of the present invention. FIG. 5 is a side view showing the second embodiment, FIG. 5 is a perspective view showing the third embodiment of the present invention, and FIG.
The figures are a perspective view showing a fourth embodiment of the present invention, FIG. 7 is a side view thereof, FIG. 8 is a perspective view showing a fifth embodiment of the present invention, and FIG.
The figure is a perspective view showing a sixth embodiment of the present invention, Fig. 1O is a perspective view showing a seventh embodiment of the present invention, Fig. 11 is a partially sectional side view, and Fig. 12 is a conventional FIG. 2 is a side view of a chair provided with a raised portion. ■... Furniture for sitting, 2... Backrest, 3 - Seat, 4- Legs, 6... Convex part, 7
...First convex portion. 8... Second convex portion, 9-... Angle adjustment mechanism. Figure 2 Figure 3 Figure 4 Figure 7 Figure 11

Claims (14)

[Claims] (1) Furniture for sitting with a vertical convex part that supports the back and waist at the same time. (2) The seating furniture according to claim 1, wherein the convex portion is separated into a first convex portion that supports the back and a second convex portion that supports the lower back. (3) The seating furniture according to claim 2, wherein the first convex portion and the second convex portion are connected via an angle adjustment mechanism so as to be rotatable and held at an arbitrary adjustment angle. (4) The sitting furniture according to claim 3, wherein the first convex portion is provided approximately at the center of the backrest portion of the sitting furniture. (5) Claim 3, wherein the first protrusion is provided with a mechanism that allows the first protrusion to be easily attached to and detached from the backrest of furniture for seating.
The mentioned seating furniture. (6) The seating furniture according to claim 3, wherein the convex portion is slidable up and down in a slit formed in the backrest portion to adjust its height position. (7) The sitting furniture according to claim 3, wherein a convex portion that also serves as a backrest is directly attached to the seat of the sitting furniture. (8) The seating furniture according to claim 2, wherein the thickness of the second protrusion is sufficiently thick so that when the back is brought into contact with the first protrusion, the second protrusion comes into contact with the lower back. (9) The seating furniture according to claim 7, wherein the convex portion is configured to be attached to the backrest portion by any means. (10) The seating furniture according to claim 1, wherein the convex portion is swingably attached to the backrest portion. (11) The seating furniture according to claim 9, wherein a concave portion is formed in the backrest portion so that the convex portion can be accommodated within the backrest portion. (12) The sitting furniture according to any one of claims 1 to 11, wherein the sitting furniture is a chair. (13) The sitting furniture according to any one of claims 1 to 11, wherein the sitting furniture is a chair. (14) The sitting furniture according to any one of claims 1 to 11, wherein the sitting furniture is a chaise longue.