JP2002209673A - Functional chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair having the function as an ordinary chair, an easy chair, and a bed, a simple structure, and easy operation. SOLUTION: This functional chair is composed of a combination of a seat back rocking means formed rockable by providing a lower part of a seat back installing frame 4 on a pivot shaft 3, a seat moving means formed rockable by providing a rocking shaft 7 near one end of a seat frame 6 provided with a seat body 27, a connecting shaft on the other end, the center of an arm 8 on both ends of the connecting shaft, one end of the arm 8 on the both outside lower ends of the seat back installing frame 4 so that the other end of the arm 8 is located on the lower side, and one end of a connecting arm 14 on both ends of the rocking shaft 7, and connecting the other end of the arm 8 and the center of the connecting arm 14 by a connecting rod 15, and a seat movement smoothing means formed by providing a guide plate 20 which is bored with a curved guide groove 19 on the opposite side end of the turning shaft 3 on both sides of a support stand 2, providing a guide shaft provided with a bearing in a lower part near the rocking shaft 7 of the seat frame 6, and correspondingly providing the bearing and the guide groove 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a function that can be used as an ordinary chair, a comfortable chair, and a bed, and that the backrest is lowered by moving the weight of a seated person, and that the backrest is interlocked and caused to occur. The present invention relates to a functional chair that can be used.

[0002]

2. Description of the Related Art There are various kinds of chairs, the most common small chairs for dining and office use, armchairs with armrests, and the depth of the seat is increased, the height of the seat is reduced and the seat is inclined backward. There are easy chairs and so on.

[0003]

However, in any case, since there are many functions provided for the purpose, only the number of chairs is increased if an object for the purpose is prepared. In addition, the multi-functional product has a very inconvenient use, for example, the structure is complicated and many levers and switches are confused when used.

[0004]

SUMMARY OF THE INVENTION The present invention provides a functional chair which eliminates such inconveniences, has a simple structure, and can be used as a normal chair, an easy chair or a bed by moving the weight of a sitting person. It is something you want to do.

[0005] An elbow body is provided above the support base so as to cover an upper part of the support base having an open upper part, a revolving shaft is provided on the upper part of the support base, and a lower part of the backrest mounting frame is provided with a backrest body. And a swinging shaft 7 is provided so that a tip thereof protrudes near one end of a seat frame including a frame body provided with a seat body, and a connecting shaft is provided at the other end, and a center of the arm is provided. Provided at both ends of the connection shaft, one end of the arm is provided at the lower end on both sides of the backrest mounting frame so that the other end of the arm is at the lower side, one end of the connection arm is provided at both ends of the swing shaft, and the other end of the arm is connected to the center of the connection arm with the connection rod. , The upper end of the foot frame of the frame body provided with the foot main body is fixed to the other end of the connecting arm, and the seat moving means is capable of swinging, and the guide curved to the end opposite to the pivot axis on both sides of the support base. A guide plate with a groove is provided, and a guide shaft with a bearing Provided below the pivot shaft of the frame is a bearing and guide grooves that the combination of seat moving smoothly means as provided in correspondence. Further, a seat positioning means is provided on both sides of the bearing, the seat positioning means is fastened by a fastener so as to sandwich the guide plate, and the stopper is provided at a position corresponding to the guide shaft when the connecting rod is raised. It is provided.

[0006]

[Function] First, the case of using as a normal chair.
Use it as a normal chair by sitting on the seat body and leaning on the backrest body. At this time, since the seat body is pushed downward by the weight of the person who is hung, even if the backrest body is pushed and the backrest mounting frame 4 is about to fall around the pivot axis, the seat is held by the connecting shaft, the arm, the connecting rod, and the connecting arm. Since the frame cannot be raised and the backrest body cannot be tilted backward, it can be used as an ordinary chair.

Next, a case where the chair is used as an easy chair. When the user sits deep in the seat body and presses the back body while leaning on the back, the restraint on the seat body by the weight of the person on the back moves to the back body side. In this way, the backrest body becomes easy to fall down by moving the place where the weight is applied, the backrest mounting frame falls down around the pivot axis, and the connecting shaft, arm,
Push the seat frame forward and upward with the connecting rod and connecting arm. Then, when the backrest body is pushed down and the backrest mounting frame is tilted about the pivot axis, the seat frame is further pushed forward and upward by the above-described operation, and the seat frame can be used in a state of an easy chair.

At this time, the movement of the seat frame can be smoothly performed by being guided by the guide grooves and bearings of the seat swinging smoothing means. Unless you apply force,
Keep it as it is. When the backrest body and the seat body fall into a state of an easy chair as described above, the connecting arm is turned by being pushed by the connecting rod, raising the foot frame connected to the connecting rod to the foot body. You will be able to put on your feet. And to return from the state of the easy chair, if you lose the force leaning on the backrest body and lift the backrest body, the seat body will have its own weight, the weight of the person who hung and the power to lift the backrest body The seat frame is pushed down by any or all of the above, and the backrest mounting frame is raised with the connecting shaft, the arm, the connecting rod, and the connecting arm about the swing shaft, returned to the original position, and used as a normal chair.

[0009] And about the case of using as a bet. Push the backrest body in the same manner as when using it as a chair, and when the guide shaft hits the upper end of the guide groove and the stopper hits the guide shaft, the backrest body will be in a horizontal state and the foot fixed to the fixed part of the connecting arm The seat frame is also lifted to a horizontal state by swinging the connecting arm, and can be used as a bed. To return to the original state, just operate it in the same way as with the easy chair. In this way, it has three functions of an ordinary chair, a comfortable chair and a bed, and can be used in a desired state by shifting the weight of the user and simple operation.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. In the drawing, reference numeral 1 denotes an entire backrest swinging body embodying a backrest swinging means, 2 denotes a support, and supports 2b are installed upright on both ends of a support portion 2a having both ends bent, and a mounting portion 2c is mounted. An upper end of the column 2b is provided in parallel with the column 2b so as to open, and a swing shaft 3 is provided at a tip of the mounting portion 2c.
Reference numeral 4 denotes a backrest mounting frame formed of a rectangular frame, and a plurality of reinforcing members 4a are provided on one plane side, and a lower portion is provided on a swing shaft 3 so as to be swingable. Reference numeral 5 denotes an entire seat moving device embodying the seat moving means, 6 denotes a seat frame formed of a rectangular frame, a plurality of reinforcing members 6a are provided on the upper surface, and a swing shaft 7 is provided at one end near the both ends. It is provided to protrude. Reference numeral 8 denotes an arm in which a mounting portion 8a and an arm portion 8b are provided in a U-shape, and an arm portion 8b is provided at a lower end on both outer sides of the backrest mounting frame 4 via a seat plate so as to be lower, and a connecting shaft 9 is provided. Is provided at the center.

Reference numeral 10 denotes an L-shaped mounting member which protrudes the protruding portion 10a, protrudes outward from the other end of the seat frame 6 so that the protruding portion 10a faces upward, and is mounted on the connecting shaft 9.
1 is connected to the projection 10a, the pressing member 12 provided on the backrest mounting frame 4 is provided on the connecting shaft 9, the bearing 11 is held down, the fastener 13 is provided from the outside of the arm 8 and connected, and the seat frame 6 is moved up and down. Is possible. 14 is a curved fixing portion 1
A connecting arm provided at the distal end thereof, wherein the swing shaft
The fixing portions 14a are provided at both ends so as to be outside. Fifteen
Is a connecting rod having one end bent, and one end is connected to the arm portion 8.
b, the other end is connected to the base of the fixed portion 14a. Reference numeral 16 denotes a foot frame made of a rectangular frame body, and a plurality of reinforcing members 16a are provided on one wide surface, and fixing portions 14a are provided on both sides of the distal end of the other wide surface so that the wide surface is radial with respect to the swing shaft 7. Is provided.

Reference numeral 17 denotes an entire seat moving smoothing device embodying the seat moving smoothing means, and reference numeral 18 denotes a support 2b on both sides of the support base 2.
And an L-shaped mounting rod connected to the mounting portion 2c, wherein the guide plate 20 for forming the curved guide groove 19 is obliquely formed in the support 2b, the mounting portion 2c, and the mounting rod 18 with the concave portion facing upward. Is provided. Reference numeral 21 denotes an entire seat locator embodying the seat locating means, and 22 denotes bearings 22a at both ends.
, Which is supported by a bearing body 22b provided below the seat frame 6 near the swing shaft 7 and provided so that the bearing 22a abuts the guide groove 19. The guide plate 20 is provided so as to be sandwiched on both sides of the guide shaft 22a, and is fastened by a fastener 24 so that the guide shaft 21 can swing. A stopper 25 is provided on the upper surface of the connecting rod 15 from the guide shaft 21 side so as to hit the guide shaft 21 when the connecting rod 15 is raised. Reference numeral 26 denotes a backrest body, which is provided on the backrest mounting frame 4. Reference numeral 27 denotes a seat body, which is provided above the seat frame 6. Reference numeral 28 denotes a footrest body, which is provided above the footrest frame 16. Reference numeral 29 denotes an elbow main body, which is provided on the support base 2 so as to cover the outer sides of the column 2b and the mounting portion 2c.

First, the case of using as a normal chair. Leaning on the seat body 27 and leaning on the back body 26, it is used as a normal chair. At this time, since the seat body 27 is pushed downward by the weight of the person hung, even if the backrest body 26 is pushed and the backrest mounting frame 4 tries to fall around the turning shaft 3, the connecting shaft 9 and the mounting material 10 or Since the seat frame 6 cannot be raised by the arm portion 8b, the connecting rod 15, and the connecting arm 14, and the backrest body 26 cannot be tilted backward, it can be used as a normal chair.

Next, the case of using it as an easy chair. When the user sits deep in the seat body 27 and presses the backrest body 26 while leaning on the back, the restraint on the seat body 27 by the weight of the person on the back moves to the backrest body 26 side. The movement of the portion where the weight is applied in this manner allows the backrest body 26 to move.
The backrest mounting frame 4 is tilted about the turning shaft 3, and the seat frame 6 is pushed forward and upward by the connecting shaft 9, the mounting member 10 or the arm portion 8b, the connecting rod 15, and the connecting arm 14. Then, when the backrest main body 26 is pressed and the backrest mounting frame 4 is tilted about the pivot shaft 3, the seat frame 6 is further pushed forward and upward by the above-described operation, and can be used in a state of an easy chair.

At this time, the movement of the seat frame 6 can be smoothly performed by being guided by the guide groove 19 and the bearing 22a. Keep it as it is. Further, the connecting arm 14 is pushed by the connecting rod 15 and pivots to raise the foot frame 16 connected to the connecting rod 15 so that the foot can be put on the foot main body 26. Then, to return from the state of the easy chair, the backrest body 26 is released by removing the force leaning on the backrest body 26.
When the seat body 27 is lifted, the seat body 27 is pushed downward by any or all of the weight of the seat itself, the weight of the person on which the seat body is held, and the force for lifting the backrest body 26, thereby connecting the connecting shaft 9 and the mounting member 10 to be connected. Alternatively, the backrest mounting frame 4 is raised around the swing shaft 3 by the arm portion 8b, the connecting rod 15, and the connecting arm 14, returned to the original position, and used as a normal chair.

[0016] Then, the case of using as a bet. When the backrest body 26 is pushed down in the same manner as when used as an easy chair and the guide shaft 22 is pushed down until the guide shaft 22 hits the upper end of the guide groove 19 and the stopper 25 hits the guide shaft 22, the backrest body 26 becomes horizontal and the connecting arm 14 The footrest frame 16 fixed to the fixing portion 14a is also lifted to a horizontal state by the swing of the connecting arm 14, and can be used in the state of a bet. To return to the original state, just operate it in the same way as with the easy chair.

[0017]

As described above, according to the first aspect of the present invention, the backrest swings with three functions of a normal chair, a comfortable chair and a bed, utilizing the difference in the position where the user sits according to the purpose. The backrest main body can be easily tilted by the means and the seat moving means, and the backrest main body and the seat main body can be smoothly moved up and down by the seat moving smoothing means. According to the second aspect of the present invention, the backrest main body can be maintained at that position by the seat positioning means unless the backrest body is tilted and a large force is applied. According to the third aspect of the present invention, the backrest main body is kept horizontal by the stopper of the seat positioning means so as not to fall down too much, and can be used as a bet with confidence. As described above, the present invention has many features such as a simple structure and can be operated by anyone, and is a very excellent invention for industrial use.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention.

FIG. 2 is a partially cutaway plan view of an embodiment of the present invention.

FIG. 3 is a right side view of the embodiment of the present invention.

FIG. 4 is a left side view of the embodiment of the present invention.

FIG. 5 is an enlarged front view of a portion A in FIG. 1;

FIG. 6 is an enlarged plan view of a portion A in FIG. 1;

FIG. 7 is an enlarged front view of a portion B in FIG. 1;

FIG. 8 is an enlarged plan view of a portion B in FIG. 1;

FIG. 9 is a front view of the use state as the easy chair according to the embodiment of the present invention.

FIG. 10 is a front view of a use state as a bed according to the embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 backrest rocking body 2 support base 2a support portion 2b column 2c mounting portion 3 pivot axis 4 backrest mounting frame 4a reinforcing material 5 seat moving device 6 seat frame 6a reinforcing material 7 rocking shaft 8 arm 8a mounting portion 8a mounting portion 8b arm portion REFERENCE SIGNS LIST 9 connecting shaft 10 mounting material 10 a projecting portion 11 bearing 12 pressing material 13 fastener 14 connecting arm 14 a fixing portion 15 connecting rod 16 foot frame 16 a reinforcing material 17 seat moving lug 18 mounting rod 19 guide groove 20 guide plate 21 seat positioning Tool 22 Guide shaft 22a Bearing 22b Bearing body 23 Suppressor 24 Fastener 25 Stopper 26 Back body 27 Seat body 28 Foot body 29 Elbow body

Claims (3)

[Claims] 1. A backrest swinging means, wherein an elbow body is provided above a support base, a turning shaft is provided above the support base, and a lower part of a backrest mounting frame provided with a backrest body is provided on the turning shaft so as to be capable of swinging. A swinging shaft 7 is provided near one end of the seat frame provided with the main body, a connecting shaft is provided at the other end, the center of the arm is provided at both ends of the connecting shaft, and one end of the arm is a backrest and the other end of the arm is at a lower end on both outer sides of the mounting frame. Provided so that one end of the connecting arm is provided at both ends of the pivot shaft, the other end of the arm and the center of the connecting arm are connected by a connecting rod, and the upper end of the foot frame provided with the foot body is fixed to the other end of the connecting arm. A swingable seat moving means, and a guide plate provided with a curved guide groove at the end opposite to the turning shaft on both sides of the support base are provided, and the guide shaft provided with the bearing is provided below the seat frame near the swing shaft. On the seat, and the seat and guide groove are provided corresponding to each other so that the seat can move smoothly. A functional chair comprising a combination of means. 2. The functional chair according to claim 1, wherein the restraining members are provided on both sides of the bearing, and seat positioning means is provided which is fastened by fasteners so as to sandwich the guide plate. 3. The functional chair according to claim 1, wherein a seat positioning means is provided in which a stopper is provided at a position corresponding to a guide shaft when the connecting rod is raised.