JP2013034789A - Hammock legless chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a legless chair that can obtain a comfortable feeling as if being swung on a hammock, having a high relaxation effect, switch to the stable state suitable for a user to read a book, watch television, and operate a personal computer while sitting thereon; and has high safety with no risk of carelessly falling behind.SOLUTION: A hammock legless chair includes a seat frame 1 for composing a seat surface part 12, a backrest frame 2 capable of being tilted for composing a backrest part 13, and a stopper frame 3 connected to the rear end part of the seat frame 1, wherein the seat frame 1 has a curved part 11 curving in arc-shape of a projection toward a floor surface and the stopper frame 3 can change between a first angle extending substantially along with the direction of the curve from the rear end part of the seat frame 1 and a second angle downwardly bending from the rear end part of the seat frame.

Description

  The present invention relates to a hammock seat chair that can provide a comfortable sensation as if swaying on a hammock and can give a high relaxing effect to a user.

  2. Description of the Related Art Conventionally, a seat chair having a reclining function that has a seat surface portion and a backrest portion and can freely change the angle of the backrest portion with respect to the seat surface portion is known. (For example, see Patent Document 1 below)

By changing the angle of the backrest part, such a seating chair can change the posture while the user is sitting down, so that the angle of the backrest part is fixed. Compared to, it is very easy.
However, there is a problem that a sufficient relaxing effect cannot be obtained because a comfortable sensation does not occur even though the backrest part simply falls down, although the posture becomes easy.

On the other hand, a rocking chair is known as a chair from which a user can obtain a relaxing effect.
The rocking chair has a relaxed effect because the legs in contact with the floor surface are formed in an arc shape, so that the chair can be swung back and forth and the body can be shaken. be able to.

From this, it can be considered that the leg portion of the rocking chair is applied to the sitting chair as a method for enhancing the relaxing effect of the sitting chair.
However, if the leg portion of the rocking chair is simply applied to the seat chair, the seat chair will always swing and become unstable.
Such sitting chairs do not stabilize the posture of the user, so work that requires stable posture (for example, sitting, reading a book, watching TV, operating a computer) It is difficult to do this, and there is a danger that the body may fall down accidentally during work.

Utility Model Registration No. 3006072

  The present invention has been made to solve the above-described problems of the prior art, and it is possible to obtain a comfortable sensation as if swaying on a hammock, which has a relaxing effect. High safety hammock seat that can be switched to a stable state suitable for users to sit down to read books, watch TV, or operate a computer, without accidentally falling behind A chair is provided.

The present invention provides the following invention as means for solving the above problems.
The invention according to claim 1 includes a seat frame constituting a seat surface portion, a tiltable backrest frame constituting a backrest portion, and a stopper frame connected to a rear end portion of the seat frame, and the seat frame Has a curved portion that curves in a convex arc shape toward the floor surface, and the stopper frame extends from the rear end portion of the seat frame so as to substantially follow the direction of the curvature, The present invention relates to a hammock seat chair that can be changed to a second angle that is bent downward from a rear end portion of the seat frame.

In the invention according to claim 2, a lower end portion of the backrest frame is connected to a rear end portion side of the seat frame so that an inclination angle with respect to the seat frame can be changed,
2. The hammock seat chair according to claim 1, wherein the seat frame and the back frame are formed in a substantially arc shape as a whole by tilting the back frame downward with respect to the seat frame.

  The invention according to claim 3 includes a head frame connected to an upper end portion of the backrest frame, and the head frame extends substantially linearly from a rear end portion of the backrest frame, and 3. The hammock seat chair according to claim 1, wherein the chair is connected to the back frame so as to be changeable to a second angle bent forward from the rear end of the back frame.

  According to a fourth aspect of the present invention, the backrest frame has a first angle that rises at a substantially right angle with respect to the seat frame, and is substantially along the direction of the curve of the seat frame or substantially parallel to the direction of the curve. The hammock seat chair according to any one of claims 1 to 3, wherein the chair can be changed to a second angle that extends and a third angle between the first angle and the second angle.

  According to a fifth aspect of the present invention, the seat frame includes a first seat frame having the curved portion and a second seat frame fixed to an upper portion of the first seat frame, and the stopper frame includes the first seat frame. 5. The vehicle according to claim 1, wherein the back seat frame is connected to a rear end portion of the first seat frame, and a lower end portion of the backrest frame is connected to a rear end portion of the second seat frame. Related to the hammock chair.

According to the first aspect of the present invention, when the back frame is tilted and the stopper frame is set to the first angle, the user can swing the seat chair in the sleeping position by the curvature of the seat frame, You can get a comfortable feeling as if you were shaking on a hammock, and you can get a high relaxing effect.
On the other hand, when the back frame is set up and the stopper frame is set at the second angle, the swinging of the sitting chair is prevented by the stopper frame in the posture where the user stands up, so that the user can sit down and read the book. It is in a stable state suitable for reading and operating a personal computer, and it is safe without the possibility that the seat chair will accidentally fall back.

  According to the invention according to claim 2, since the seat frame and the backrest frame as a whole form a substantially arc shape by inclining the backrest frame downward with respect to the seat frame, the seat chair as a whole of the hammock It is possible to obtain a comfortable sensation as if swaying on a hammock.

According to the third aspect of the invention, when the head frame is set to the first angle, the back frame and the head frame are substantially straight, so the head frame does not hit the user's neck. Can be in a natural state.
On the other hand, when the head frame is set at the second angle, the head frame bends forward from the backrest frame, so that the head frame supports the user's neck. Neck fatigue can be reduced when watching.

  According to the fourth aspect of the present invention, when the backrest frame is set to the first angle, the user can sit in a posture in which the back is extended, which is suitable for reading. When the backrest frame is set at the second angle, the seat frame and the backrest frame as a whole can be formed into a substantially arc shape, and it is possible to obtain a comfortable sensation as if the backrest frame is shaken on the hammock. When the backrest frame is set to the third angle, the user can sit in a posture slightly leaning back, which is suitable for watching TV.

  According to the invention which concerns on Claim 5, the height of a seat surface can be made high, a user's sitting comfort improves and it becomes possible to heighten a relaxation effect.

It is a figure which shows 1st embodiment of the hammock seat chair which concerns on this invention, (a) is an external appearance perspective view, (b) is a perspective view which shows an internal flame | frame. It is a figure which shows an example (state A) of the usage method of the hammock seat chair of 1st embodiment, Comprising: (a) is an external view including a user, (b) is a figure of a flame | frame. It is a figure which shows an example (state B) of the usage method of the hammock seat chair of 1st embodiment, Comprising: (a) is an external view including a user, (b) is a figure of a flame | frame. It is a figure which shows an example (state C) of the usage method of the hammock seat chair of 1st embodiment, Comprising: (a) is an external view including a user, (b) is a figure of a flame | frame. It is a figure which shows 2nd embodiment of the hammock seat chair which concerns on this invention, (a) is an external appearance perspective view, (b) is a perspective view which shows an internal flame | frame.

Hereinafter, a preferred embodiment of a hammock seat chair according to the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a first embodiment of a hammock seat chair according to the present invention, wherein (a) is an external perspective view, and (b) is a perspective view showing an internal frame.

  The hammock chair according to the present invention includes a frame (10) made of a highly rigid material such as a metal pipe, a cushion material such as polyurethane covering the periphery of the frame (not shown in the figure because it is inside), a cushion material It is composed of a surface covering material (20) such as cloth or leather covering the surface.

  The frame (10) is connected to the seat frame (1) constituting the seat surface part (12), the tiltable back frame (2) constituting the backrest part (13), and the rear end part of the seat frame (1). The stopper frame (3) and the head frame (4) connected to the upper end of the backrest frame (2) are combined.

  As shown by the arrow in FIG. 1B, the seat frame (1) has a curved portion (11) that curves in a convex arc shape toward the floor surface in a side view, and the lower surface thereof is the epidermis. It contacts the floor surface through the material (20) and the cushion material.

The back frame (2) is formed in a straight line when viewed from the side, and its lower end is connected to the vicinity of the rear end of the seat frame (1) via a first connecting member (5).
The first connecting member (5) is formed of a known reclining gear (for example, KSD series manufactured by Koyo Giken Co., Ltd.) used in a reclining mechanism such as a chair, and is multistage ( For example, the angle can be adjusted in four stages. By using the reclining gear, it is possible to change the inclination angle of the back frame (2) with respect to the seat frame (1).

The stopper frame (3) is connected to the rear end portion of the seat frame (1) via the second connecting member (6).
The second connecting member (6) is formed of a known reclining gear (for example, KSD series manufactured by Koyo Giken Co., Ltd.) used in a reclining mechanism such as a chair, and is multistage ( For example, the angle can be adjusted in four stages. By using the reclining gear, it is possible to change the inclination angle of the stopper frame (3) with respect to the seat frame (1).
The stopper frame (3) is covered with a cushioning material and a skin material like the other frames. In FIG. 1 to FIG. 5A, a portion in which the stopper frame (3) is built is indicated by reference numeral (30).

The head frame (4) is connected to the upper end of the backrest frame (2) via a third connecting member (7).
A 3rd connection member (7) consists of a well-known reclining gear (for example, KS-12 / KS-16HG etc. by Koyo Giken Co., Ltd.) used for reclining mechanisms, such as a chair, and a user applies force. Thus, the angle can be adjusted in multiple stages (for example, 14 stages). By using the reclining gear, it is possible to change the inclination angle of the head frame (4) with respect to the backrest frame (2).

  2-4 is a figure which shows an example of the usage method of the hammock seat chair of 1st embodiment, Comprising: In each figure, (a) is an external view including a user, (b) is a figure of a flame | frame. .

  FIG. 2 shows a second example in which the back frame (2) is set to a first angle rising substantially perpendicular to the seat frame (1), and the stopper frame (3) is bent downward from the rear end of the seat frame (1). This is a state where the head frame (4) is set to a first angle extending substantially linearly from the rear end of the backrest frame (2) (hereinafter referred to as "state A").

  In the state A, the user (R) stands upright by the backrest frame (2), and the backward swing of the seat chair is prevented by the stopper frame (3). Therefore, the user (R) is in a stable state suitable for sitting and reading a book or operating a personal computer, and the seat chair is safe without fear of falling back.

  In FIG. 3, the back frame (2) is set at a third angle that rises obliquely with respect to the seat frame (1), and the stopper frame (3) is bent downward from the rear end of the seat frame (1). This is a state where the head frame (4) is set to a second angle that is bent forward from the rear end of the back frame (2) (hereinafter referred to as "state B").

  In state B, the user (R) is tilted back slightly backward by the tilted back frame (2), and the stopper frame (3) prevents the seat chair from swinging backward and is used. The head frame (4) supports the person (R) 's neck. Therefore, the user can sit stably with his / her neck supported while leaning back slightly, which is suitable for watching TV for a long time.

  FIG. 4 shows that the back frame (2) is set at a second angle extending substantially along the curve direction of the seat frame with respect to the seat frame (1), and the stopper frame (3) is placed behind the seat frame (1). The first angle extending from the end portion so as to substantially follow the direction of curvature of the seat frame is set, and the head frame (4) is set to the first angle extending substantially linearly from the rear end portion of the backrest frame (2). (Hereinafter referred to as “state C”).

  In the state C, the seat frame (1) and the backrest frame (2) have a generally arc shape as a whole, so that the seat chair can be shaped like a hammock as a whole, and the user (R) It is possible to obtain a comfortable sensation as if it was shaking on a hammock.

FIG. 5 is a view showing a second embodiment of a hammock seat chair according to the present invention, wherein (a) is an external perspective view, and (b) is a perspective view showing an internal frame.
Hereinafter, the hammock seat chair of the second embodiment will be described with a focus on the configuration different from that of the first embodiment, the same components will be denoted by the same reference numerals, and description thereof will be omitted.

The hammock seat chair of the second embodiment includes a first seat frame (1a) in which the seat frame (1) has a curved portion (11) that curves in a convex arc shape toward the floor surface, and the first seat. It consists of a second seat frame (1b) fixed to the upper part of the frame (1a).
The second seat frame (1b) is fixed at an interval from the first seat frame (1a). Since the seat surface portion (12) is formed by covering both the first seat frame (1a) and the second seat frame (1b) with the cushion material and the skin material, the seat surface portion becomes thicker than that of the first embodiment. Is high.
The first seat frame (1a) has a curved portion (11) in a side view, but the second seat frame (1b) is formed in a substantially linear shape in a side view.

The lower end part of the backrest frame (2) is connected to the rear end part of the second seat frame (1b) via the first connecting member (5).
The first connecting member (5) is composed of a reclining gear capable of adjusting the angle in multiple stages (for example, four stages) as described above, thereby changing the inclination angle of the back frame (2) with respect to the second seat frame (1b). It is possible to do.

The stopper frame (3) is connected to the rear end portion of the first seat frame (1a) via the second connecting member (6).
The second connecting member (6) is composed of a reclining gear capable of adjusting the angle in multiple stages (for example, four stages) as described above, thereby changing the inclination angle of the stopper frame (3) with respect to the first seat frame (1a). It is possible to do.

  Although the hammock seat chair of the second embodiment does not include the head frame (4), the head frame (4) is provided at the upper end of the backrest frame (2) as in the first embodiment. You may connect via a connection member (7).

  In the hammock seat chair of the second embodiment, the seat frame (1) is composed of a first seat frame (1a) and a second seat frame (1b) provided on the upper part thereof, and the user can use the second seat frame. Since it sits above (1b), the height of a seat surface becomes high compared with the thing of 1st embodiment. Therefore, the sitting comfort of the user is improved and the relaxation effect can be enhanced.

  The hammock chair of the second embodiment is also of three types (states) similar to the three types (state A, state B, state C) shown in FIGS. 2 to 4 in the first embodiment. A ′, state B ′, state C ′). (Not shown)

In state A ′, the back frame (2) is set to a first angle that rises substantially perpendicular to the second seat frame (1b), and the stopper frame (3) is moved from the rear end of the first seat frame (1a). The second angle is set to bend downward.
In this case, the backrest frame (2) puts the user upright, and the stopper frame (3) prevents the seat chair from swinging backward. Therefore, a stable state suitable for a user to sit down and read a book or operate a personal computer is obtained, and there is no risk that the seat chair will accidentally fall back.

In the state B ′, the back frame (2) is set to a third angle that rises obliquely with respect to the second seat frame (1b), and the stopper frame (3) is moved from the rear end of the first seat frame (1a). The second angle is set to bend downward.
In this case, the inclined backrest frame (2) allows the user to tilt the back slightly backward, and the stopper frame (3) prevents the seat chair from swinging backward. Therefore, it becomes a state suitable when watching TV for a long time.

In the state C ′, the back frame (2) is inclined with respect to the second seat frame (1b) and set to a second angle extending substantially parallel to the bending direction of the first seat frame (1a), and the stopper frame (3 ) Is set to a first angle extending from the rear end portion of the first seat frame (1a) so as to substantially follow the direction of curvature of the first seat frame.
In this case, since the seat frame (1) (the first seat frame (1a) and the second seat frame (1b)) and the backrest frame (2) as a whole have a substantially arc shape, the seat chair as a whole is hammocked. The user can obtain a comfortable sensation as if shaking on a hammock.

  In both the hammock seat chairs of the first embodiment and the second embodiment described above, the stopper frame (3) is present at a position where the user can be operated while sitting (near the back of the seating surface). Therefore, the user can operate the stopper frame (3) by pushing it up and down by hand (change the first angle and the second angle) while sitting down, and from state A to state C or state A ′. The posture can be easily changed from the state to the state C ′.

  The configuration of the hammock seat chair according to the present invention is not limited to the first embodiment and the second embodiment described above, and the shape, structure, and the like can be changed as appropriate without departing from the scope of the claims. Is possible. For example, an armrest part may be provided or a massage device may be attached. In addition, a reclining mechanism that changes the inclination angle of the backrest portion may be a known lever type (a system in which the inclination angle can be adjusted (free state when the lever is pulled up, and the angle is fixed when the lever is lowered)). . Further, the specific shape and structure of the frame are not limited to those shown in the drawings.

  The hammock seat chair according to the present invention can be used as an ordinary seat chair or can be used as a form like a hammock, and is therefore suitable for a user who desires a particularly high relaxation effect. .

DESCRIPTION OF SYMBOLS 1 Seat frame 1a 1st seat frame 1b 2nd seat frame 2 Backrest frame 3 Stopper frame 5 1st connection member 6 2nd connection member 7 3rd connection member 10 Frame 11 Curved part 12 Seat surface part 13 Backrest part 20 Use of skin material R Person

Claims (5)

A seat frame constituting a seat surface portion;
A tiltable back frame that constitutes the back portion; and
A stopper frame connected to the rear end of the seat frame;
The seat frame has a curved portion that curves in a convex arc shape toward the floor surface,
The stopper frame can be changed to a first angle extending from the rear end portion of the seat frame so as to be substantially along the direction of the curve and a second angle bent downward from the rear end portion of the seat frame. Characteristic hammock chair. The lower end part of the backrest frame is connected to the rear end part side of the seat frame so that the inclination angle with respect to the seat frame can be changed,
2. The hammock seat chair according to claim 1, wherein the seat frame and the back frame are formed in a substantially arc shape as a whole by tilting the back frame downward with respect to the seat frame. Having a head frame coupled to the upper end of the back frame;
The back frame is configured so that the head frame can be changed into a first angle extending substantially linearly from a rear end portion of the back frame and a second angle bent forward from the rear end portion of the back frame. The hammock chair according to claim 1, wherein the hammock chair is connected to the chair. The back frame is
A first angle rising substantially perpendicular to the seat frame; a second angle extending substantially parallel to the direction of the curve of the seat frame; or substantially parallel to the direction of the curve; the first angle and the first angle; The hammock chair according to any one of claims 1 to 3, wherein the chair can be changed to a third angle between two angles. The seat frame includes a first seat frame having the curved portion, and a second seat frame fixed to an upper portion of the first seat frame,
The stopper frame is connected to a rear end portion of the first seat frame,
The hammock seat chair according to any one of claims 1 to 4, wherein a lower end portion of the backrest frame is connected to a rear end portion side of the second seat frame.

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