KR101022761B1

KR101022761B1 - The chair

Info

Publication number: KR101022761B1
Application number: KR1020100088342A
Authority: KR
Inventors: 신동일
Original assignee: 신동일
Priority date: 2010-09-09
Filing date: 2010-09-09
Publication date: 2011-03-17

Abstract

PURPOSE: A chair is provided to enable a user to selectively use one among a back support chair, an upper body support chair, a shin support chair, and a foot rest chair according to user's need. CONSTITUTION: A chair comprises: a rotation shaft(11) in which one side end thereof is connected to the side portion of a seat and the other side end thereof is bent and extended to a free space; a supporting part(12) connected to the other side end of the rotation shaft; a first clutch hinge(13) connecting one side end of the rotation shaft to a vertical shaft or one side of a lower support plate; and a second clutch hinge(14) connecting one side of the supporting part to the other side end of the rotation shaft.

Description

Chair {THE CHAIR}

The present invention relates to a chair, and more specifically, to a normal backrest chair in normal times, when the fatigue of the spine is supported by the upper body bowed forward to reduce the fatigue of the spine to support the lower body, to stretch the waist in a sitting position When you want to sit up with a shin support chair when you want to sit on a versatile chair that can be switched.

In general, a chair is a seat made for one or several people, one of the oldest furniture forms.

Such chairs are used in many ways, such as home chairs (study chairs, dining chairs, etc.), office chairs, lecture / classroom chairs, and commercial chairs (restaurants, beauty salons, performance halls, theaters, etc.).

Such chairs have continuously developed technologies related to materials, materials, and structures, and in recent years, chairs that do not overwhelm the spine even when seated for a long time based on ergonomic design have been developed.

That's because most people stand or sit outside of their sleeping hours, and the disks in their backs are forced to continue to be pressured by the weight of their torso, and when they are sitting in chairs and reading or working for a long time, they bow their heads forward. In many cases, sitting in a chair for a long time in such a bent position can cause pain in the disc and flexion of the spine due to tension in the lower back muscles.

In the related art, many chairs have been developed to reduce pressure on the disk of the lower back or correct the posture. In brief, the shape can be used to correct the position of the lower back using the curve of the hip and spine or to lie down halfway by tilting the back of the back. Chair is mainstream.

Such a chair can reduce the pressure applied to the disk of the waist or reduce the pressure applied to the disk. However, when sitting in a chair for a long time while reading a book or working, it is difficult to maintain a correct posture, and thus the posture cannot be corrected. There was a limit to ease.

More recently, in order to solve the problem of the conventional chair, a chair having an upper body support capable of supporting the front of the chair, that is, the abdomen and the chest of the seater has been introduced, but such a chair is used for other tasks such as office work. If you see or work on the computer there is a difficult problem.

In addition, when the abdomen and the chest are supported by the upper body support for a long time, there is a problem that the pain occurs in the abdomen and the chest or feel stuffy. This is because the abdomen and chest are supported by the spine and the support base is weaker than the waist.

In addition, as described above, when the abdomen and the chest are supported for a long time, the entire front of the image is very wrinkled, there is a problem that can not be conscious of the eyes of others when interpersonal relationship.

The present invention created to solve the above problems as a normal backrest chair in normal, when the fatigue of the spine is supported by the upper body bowed forward to reduce the fatigue of the spine to support the lower back, in the sitting posture to stretch The aim is to provide a versatile chair that can be converted into a shin support chair and a footrest chair when you want to sit with your feet up.

The present invention for achieving the above object is a seat (1) for sitting; The chair 10 is coupled to the lower surface of the seat (1), maintaining a predetermined height and supporting legs (2), wherein one end is connected to the side portion of the seat and the other end is free A rotary shaft 11 bent and extended in space; A support part 12 connected to the other end of the rotary shaft 11 so as to maintain a horizontal state at intervals from the upper surface of the seat 1; One side of the lower support plate (1a) of the seat (1) or the vertical shaft (2a) of the leg (2) and one end of the rotary shaft (11), but according to the engagement / release state of the rotary shaft (11) Clutch hinge 1 (13) to maintain the rotation or stop state; A clutch hinge 2 (14) connecting the other end of the rotary shaft 11 and one side of the support part 12 to maintain the rotation or stop state of the support part 12 according to the engagement / release state; It is characterized by.

The present invention by the above-mentioned problem solving means is usually as a backrest chair in general, when the fatigue of the spine is supported by the upper body bowed forward to reduce the fatigue of the spine to support the lower back, when sitting back stretch With the shin support chair, when you want to sit with your feet up so that you can switch to the footrest chair, so that the user, that is, the seat can be used in a variety of choices depending on the position you want to sit.

1 is a perspective view showing a configuration according to an embodiment of the present invention.
2 is a perspective view showing another configuration according to an embodiment of the present invention.
Figure 3 is an exploded perspective view showing a configuration according to an embodiment of the clutch hinge of the present invention.
4 and 5 is a partial cross-sectional view showing the configuration and operating state according to an embodiment of the clutch hinge of the present invention.
Figure 6 is a side view showing a state in which the present invention is used as a back chair.
Figure 7 is a side view showing a state in which the present invention is used as the upper body support chair.
Figure 8 is a side view showing a state in which the present invention is used as a shin support chair.
Figure 9 is a side view showing a state in which the present invention is used as a footrest chair.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, the present invention is a seat (1) for seating, as shown in the accompanying drawings Figures 1 and 2; The chair 10 is coupled to the lower surface of the seat (1), maintaining a predetermined height and supporting legs (2), wherein one end is connected to the side portion of the seat and the other end is free A rotary shaft 11 bent and extended in space; A support part 12 connected to the other end of the rotary shaft 11 so as to maintain a horizontal state at intervals from the upper surface of the seat 1; One side of the lower support plate (1a) of the seat (1) or the vertical shaft (2a) of the leg (2) and one end of the rotary shaft (11), but according to the engagement / release state of the rotary shaft (11) Clutch hinge 1 (13) to maintain the rotation or stop state; A clutch hinge 2 (14) connecting the other end of the rotary shaft 11 and one side of the support part 12 to maintain the rotation or stop state of the support part 12 according to the engagement / release state; Can be.

Here, the rotary shaft 11 of the present invention is that one end is connected to the side portion of the seat and the other end is formed of a "]" shape that extends bent in free space, one or left and right symmetry as shown Two can be provided.

At this time, when only one rotation shaft 11 is provided on one side, at least the clutch hinge 2 14 is provided with a support shaft (rotary support shaft) that penetrates inwardly of the support portion 12 to firmly support the support portion 12. (The construction will be described in the description of clutch hinge 2 (14) below.)

In addition, when the rotary shaft 11 is provided with a pair symmetrically to the left and right, the clutch hinge 1, 2 (13, 14) is provided only on one side of the rotary shaft 11, the other side of the rotary shaft 11 Both front end portions may be fixed to penetrate the lower support plate 1a and the support portion 12, respectively.

However, if the safety of the seating of the present invention is considered as much as possible, it will be preferable that the rotary shaft 11 is provided symmetrically on both sides.

On the other hand, the support portion 12 of the present invention is an area body coupled to the other end of the rotary shaft 11, the inside is provided with a rigid synthetic resin panel, the outside may be made of a cushion and the outer shell surrounding the synthetic resin panel.

In this case, the cushion may be a sponge, a silicone material, or else it is satisfactory if the cushioning agent does not feel uncomfortable when the human body contacts for a long time.

In addition, the outer shell may be applied to a textile paper based on silver-nano considering antibacterial.

On the other hand, the clutch hinge 1 (13) of the present invention, as shown in the accompanying drawings, Figures 3 to 5, the groove 131 is provided in the sawtooth shape on one side of the block of the polygon, the groove 131 of the A first hinge 13a provided with a vertical rotation shaft 132 at a center thereof; A second hinge (13b) provided with a projection (133) in the form of a tooth that is engaged with the groove (131) on one side of the block of the polygon in which the rotating shaft (132) passes through the center; A cap 13c fixedly coupled to the distal end of the rotation shaft 132 to prevent the second hinge 13b from being separated on the rotation shaft 132 of the first hinge 13a; A spring 13d which is embedded between the cap and the other side of the polygon block of the second hinge 13b, and compresses the second hinge 13b in the direction of the first hinge 13a. Can be.

In this case, the first hinge 13a is provided on one side of the lower support plate 1a of the seat 1 or on the vertical shaft 2a of the leg 2, and the second hinge 13b is a rotary shaft ( 11) can be fixed to one end of the inner diameter.

When the first hinge 13a is provided on the vertical shaft 2a of the leg 2 in the above, it may be fixed to a separate bracket (not shown).

In addition, the groove 131 and the projection 133 may be in the form of a tooth inclined in one direction, the both sides may be in the form of a tooth of the same angle, in the case of the tooth form inclined in one direction in the above. It may be the clutch gear itself.

In addition, as the second shaft 13b is moved away from the first hinge 13a in the state in which the rotating shaft 132 is pressed by the spring 13d, the protrusion 133 is separated from the groove 131 so that the free rotation state is achieved. If it is high enough, it is satisfied.

On the other hand, the clutch hinge 2 (14) of the present invention may be made of the same configuration as the clutch hinge 1 (13).

However, a portion to which the first hinge 13a and the second hinge 13b are applied, that is, the first hinge 13a is fitted to the other end of the rotary shaft 11 and fixed, and the second hinge 13b is It may be fixed to one end of the support 12.

At this time, one end of the support 12 may be a single side of the hard synthetic resin panel provided therein, and the second hinge 13b may be fitted into the fitting fixing groove of the portion.

In addition, as briefly described above, when the clutch hinge 2 14 is provided with only one rotation shaft 11 on one side, the support force of the support part 12 may be reduced, and is fixed to the support part 12 side. A support shaft (not shown) extends in the same body (a length that supports the support through the support) at a central portion of the support hinge 12 side of the second hinge 13b of the clutch hinge 2 (14). It can also be firmly supported.

Referring to the operation of the present invention configured as described above are as follows.

First, the present invention is usually a backrest chair, as shown in the accompanying drawings, Figure 6, the seated person sitting in the seat (1) with the upper body upright, or the upper body to the back to lean back on the support (12) Sit down or work or relax.

When sitting for a long time in such a state, for example, when seeing office work in a state of sitting for a long time, a load is applied to the spine to feel pain or fatigue.

At this time, the seated person rotates and fixes the rotary shaft 11 at a desired angle, and the support part 12 is also rotated and fixed at a desired angle to be adjusted to use a different posture.

Here, the operation of rotating the rotary shaft 11 from the seat (1) is described as follows.

Normally, as shown in the accompanying drawings in FIG. 6, the angle of the rotation shaft 11 is maintained so that the support 12 faces the back of the seated person. However, in order to change a posture, for example, as shown in FIG. Likewise, when the upper body is to be leaned forward, the rotating shaft 11 is rotated while pulling outward.

At this time, when pulling the rotary shaft 11, the second hinge (13b) of the clutch hinge 1 (13) is pulled from the first hinge (13a), in the process of the sawtooth-shaped projection 133 in the groove 131 ) And it is free rotation state.

When the rotary shaft 11 is rotated in the above state to reach the desired position and release the pulling force, the restoring force (expansion) of the spring 13d is applied to the second hinge 13b to the first hinge 13a. Press to the side and descend.

Thus, when the protrusion 133 of the second hinge 13b enters and engages the groove 131 of the first hinge 13a, the projection 133 cannot be rotated in any direction.

After that, when the support 12 is pulled out from the rotary shaft 11 and operated in the same manner as described above, the support 12 can be rotated about the other end of the rotary shaft 11, so that the seated person's desired angle After adjusting to, when the support part 12 pulled out is released, the 2nd hinge 13b is pushed to the 1st hinge 13a side by the restoring force of the spring 13d, and is engaged.

Then, when the projection 133 of the second hinge 13b is introduced into and engaged with the groove 131 of the first hinge 13a, the projection 133 cannot be rotated in any direction.

In this state, the seated person leans over the upper body and sits on the support 12 of the chest or abdomen.

And, the present invention is used as a shin support chair that can be stretched back in a sitting posture, as shown in Figure 8 attached to, or as shown in Figure 9 attached, footrest chairs that can raise and sit foot Even if you want to use as the angle of the clutch hinge 1, 2 (13) 14 as described above to adjust the desired angle through the operation is used.

In the above, in the case of the shin support chair, if you lean the shin portion of the leg to the support portion 12, because the center of gravity of the seated person can be moved forward and the upper body can fall forward, the seated person naturally stretches the upper body The back is leaned back, and the waist naturally stretches straight up.

In addition, the footrest chair is useful when sitting young children or people with short legs.

The present invention is thus a normal backrest chair in normal times, when the fatigue of the spine is supported by the upper body bowed forward to reduce the fatigue of the spine when you feel the vertebrae, as a shin support chair when stretching back in a sitting position, When you want to sit with your feet up, you can switch to the footrest chair, so that you can use a variety of choices depending on the user, that is, the seating position you want to sit.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

In addition, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

For example, although the armrest is not illustrated or described in the present invention, armrests are provided at both sides of the seat, and the rotation shaft 11 may be rotated outside the armrest.

Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

10: chair 1: seat
1a: lower support plate 2: legs
2a: vertical shaft 11: rotating shaft
12: support 13,14: clutch hinge 1,2
13a: first hinge 13b: second hinge
13c: cap 13d: spring
131: groove 132: rotation axis
133: projection

Claims

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One end is connected to the side portion of the seat (1) and the other end is a rotating shaft 11 bent to extend free space; A support part 12 connected to the other end of the rotary shaft 11 so as to maintain a horizontal state at intervals from the upper surface of the seat 1; One side of the lower support plate (1a) of the seat (1) or the vertical shaft (2a) of the leg (2) and one end of the rotary shaft (11), but according to the engagement / release state of the rotary shaft (11) Clutch hinge 1 (13) to maintain the rotation or stop state; In the chair consisting of a clutch hinge 2 (14) for connecting the other end of the rotary shaft 11 and one side of the support 12, maintaining the rotation or stop state of the support 12 according to the engagement / release state The first and second clutch hinges 1, 2 (13) and 14 are provided with grooves 131 in a sawtooth shape on one side of a block of a polygon, and a vertical rotation shaft 132 is provided in the center of the grooves 131. (13a); A second hinge (13b) provided with a projection (133) in the form of a tooth that is engaged with the groove (131) on one side of the block of the polygon in which the rotating shaft (132) passes through the center; A cap 13c fixedly coupled to the distal end of the rotation shaft 132 to prevent the second hinge 13b from being separated on the rotation shaft 132 of the first hinge 13a; And a spring 13d embedded between the cap and the other side of the polygon block of the second hinge 13b to compress the second hinge 13b in the direction of the first hinge 13a. Chair features.