JP2829277B2 - Incline suspension chair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inclination in which a backrest, a seat plate and a step are inclined linearly with an appropriate gradient, and are inclined from the backrest to the step, so that the body is supported by armpit supports. It is related to a suspension chair.

More specifically, a backrest, a seat plate and a step of a chair are inclinedly deformed like a slide, and an armpit support which is supported by the side so that the body does not slip down is projected just before the inclined deformation, so that the weight from the side to the lower side is reduced. The present invention relates to a health appliance that stretches or pulls a back muscle, a waist, or the like.

[0003] Further, the step can be extended and contracted in accordance with the height, and a footrest is provided at the lower end of the step, so that the underarm support bites under the armpit, and when a feeling of discomfort is felt, a switch is pressed. , So that the steps protrude to the position corresponding to the height. Further, the present invention relates to an inclined suspension chair in which a user can temporarily release a feeling of pressure under the armpit by placing a foot on the footrest and can replace the armpit support in a place where the pressure is low.

[0004]

2. Description of the Related Art Conventionally, chairs, such as reclining seats, which can change the inclination of a backrest and support the body comfortably, are well known.

[0005] Typical examples of stretching and pulling the back muscles and waist are traction treatments at orthopedic hospitals and the like and hanging health devices at home.

However, there has not yet been an inclined suspension chair in which a backrest, a seat plate and a step are inclinedly deformed like a slide, and an armpit support for preventing a body from slipping off is projected immediately before the inclined deformation. Was.

[0007]

Heretofore, it has been said that the walking of a human standing upright has not been completely overcome in evolution due to its skeletal structure. However, in our daily lives, we humans are currently lifting and carrying heavy objects.

[0008] For this reason, in daily life, humans constantly keep pressing the back muscles and waist, but the back muscles and waist are hardly stretched or pulled.

[0009] In addition, traction treatment at orthopedic hospitals and the like is mainly received by patients who have had a herniated disc (short hips), and there is a problem that ordinary healthy people cannot easily use the traction treatment. However, there is a drawback in that it is troublesome to be hospitalized or hospitalized.

[0010] In addition, in the hanging health device of each household, the hanging hand cannot withstand the weight for ordinary people after middle age, so that it cannot be kept for a long time and is left as it is or stored in a corner of a storeroom. There was a problem that.

Further, in the hanging health device, the user goes to the place where the health device is placed, or takes it out of the storage place at an appropriate location, prepares it for use, and hangs. To pull,
There was a problem that required special time. In addition, in this hanging, daily activities are interrupted and performed, so the flow of daily life is interrupted, forgetting to use the hanging health device, being troubled, and hanging health device is not used The disadvantage was that there were many cases.

[0012] While carrying out daily life by lifting or carrying a heavy object without any aftercare to stretch or pull the back muscles and waist, acute backache or chronic backache occurs. It is also the cause of the current situation.

According to the present invention, aftercare, in which the back muscles, waist, etc., which continue to be pressed in daily life, are stretched or pulled, is taken in an easy posture and state, and is incorporated into a part of the flow of daily life. It is an object of the present invention to provide a tiltable suspension chair.

[0014]

According to a first aspect of the present invention, an upper portion of a backrest is rotatably supported above a back portion fixed to both sides of a chair, and a lower end of the backrest is provided at a lower end of the backrest. The rear end of the seat plate and the base end of the step are rotatably supported at the front end of the seat plate, respectively, and the backrest, the seat plate and the step are provided by extension operation of a cylinder disposed between the back and the backrest. The back arm is tilted to form a continuous slope that descends downward from the backrest to the step, and the armpit support that is rotatably supported by the back in conjunction with the extension operation of the cylinder. From the storage position parallel to the front side to the side support position forward of the backrest, and the side is supported via the armpit support.

[0015] Therefore, the user shifts to an inclined state in which the user moves down from the upper body to the lower limbs, and the user can maintain a comfortable posture in which the armpits are supported by the armpit supports, and the user can use the arm from the armpits. Using the weight of the person, the back can be stretched and corrected over a certain period of time. Then, when the correction of the back muscles or the like is completed, the chair can be returned from the inclined state and used as a normal chair.

[0016]

Further, the step can be extended and contracted in accordance with the height, and a footrest is provided at the lower end of the step, and the footrest is projected from the step in accordance with the backrest, the seat plate and the inclined transition of the step, and the return to the chair. , Stored in steps.

Further, casters are provided before and after the lower part on both sides of the chair, and a lever is provided on one of the side parts. By pulling up and pulling down this lever, each caster can be projected from the lower surface of the chair, To withdraw.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a tilting chair according to the present invention.

FIG. 1 shows the use state of the inclined suspension chair of the present invention as a chair, FIG. 2 shows the use state of the inclined suspension chair at the time of transition to the inclined state, and FIG. 3 shows the inclination mechanism of the backrest and the pipe shaft. 3 shows a rotating mechanism.

FIGS. 4 to 6 show the operation mechanism of the armpit support, FIGS. 7 to 12 show the pillow fixing position operation mechanism, and FIGS. 13 and 14 show the operation of the pillow by the pillow operation motor. 3 shows a mechanism for adjusting the position.

FIGS. 15 and 16 show a slide mechanism of the seat plate, and FIG. 17 shows a mechanism in which the seat plate and the step cooperate with each other to form an inclined surface together with the inclination of the backrest.

FIGS. 18 to 20 show the operation mechanism of the step, and FIG. 21 shows the operation mechanism of the caster.

The inclined suspension chair 1 is composed of a rectangular metal, aluminum or other metal tube in the form of a frame for weight reduction, and a back 2 fixed by welding or the like and both sides 3 and 3 provided with handrails 31 at the upper end. Is provided, and both sides 3 and 3 are fixed to the lower portions on both sides of the back portion 2 by welding or the like. Then, a plate material 4 such as lightweight metal or wood may be adhered to the outer surface of the back portion 2 and the inner and outer surfaces of the side portions 3 and 3, and vinyl, leather or the like may be adhered thereon. .

Similarly, a backrest 5 and a seat plate 6 are provided by combining rectangular metal tubes made of steel, aluminum or the like in a frame shape, and the bearing plates 7, 7 are protruded rearward inward on both sides of the upper portion of the backrest 5. Fix it. Then, the bearing plates 7, 7 are inserted and fixed to a pipe shaft 21 which penetrates upwardly on both sides of the back portion 2 and is rotatably supported. At this time, when the sliding shaft 113 of the armpit support 11 described later rotates and slides inside the pipe shaft 21,
The mandrel 111 of the armpit support 11 has the back 2 and the back 5
Notches 2a, 2a,
3a are provided.

As shown in FIG. 17, plywood plates 54 and 64 are attached to the upper surfaces of the backrest 5 and the seat plate 6, and cushion sheets 55 and 65 made of synthetic resin or the like are attached to the surfaces.
Further, vinyl or leather 55a, 65a or the like is attached from above.

Also, the shaft hole 50 at the lower end of the backrest 5 in FIG.
A shaft 51 rotatably connects the base plate 50 and the rear end of the seat plate 6 with a shaft 51, while a shaft hole 61 at the base end of the step 8 shown in FIG. To support.

The hydraulic cylinder 10 is, as shown in FIG.
Place the base clevis 101 in the center of the lower end of the back 2 with a pin 10
2 is rotatably supported. This cylinder 1
As shown in FIG.
Attach the push-up tool 56 whose tip is forked by welding or the like,
A pipe member 56 is attached to the forked end of the push-up device 56.
1,561 is fixed in a T-shape by welding.

The forked pipe members 561 and 56
The shafts 562 are inserted into the insides of the shafts 1, respectively.
Tube members 563, 5 fixed by welding in a T-shape to 2,562
63 is provided.

Then, a pipe member 564 in which a push-up rod 565 is welded in a T-shape is provided, and this pipe member 564 is interposed between the pipe members 561 and 561 at the forked ends.
Shafts 562 and 562 of pipe members 563 and 563 from both sides
To make it rotatable.

Further, the pipe members 563 and 563 are slidably inserted into shafts 59 and 59 provided on both sides of the frame of the backrest 5 between the intermediate member 57 and the lower member 58 in the horizontal direction. .

When the piston rod 103 of the cylinder 10 is extended, the fore-end pipe members 561 and 561 of the push-up device 56 rise. Then, the tube members 563 and 563 in which the shafts 562 and 562 are inserted from both sides of the tube members 561 and 561 rise along the shafts 59 and 59, and at the same time, the shaft 56 between the tube members 561 and 561.
The push-up rod 565 fixed to the pipe member 564 supported by 2,562 is raised.

The pipe members 563 and 563 are
By rising along 9,59, the pipe member 563,
The backrest 5 pushes up the backrest 5 by abutting on the lateral member 57 at the center of the backrest 5.

Then, the lower part of the backrest 5 is
As shown in FIG. 5, the projection protrudes forward from the back portion 2 around the pipe shaft 21 which is inserted and fitted to the bearing plates 7, 7 fixed to both sides of the upper portion. Thus, the lower end of the backrest 5 and the rear end of the seat plate 6, and the front end of the seat plate 6 and the base end of the step 8 are rotatably supported by the shafts 51 and 61, respectively. Of the back portion 2 projects forward with the back portion 2.

At this time, as shown in FIG. 17, a connecting plate 5 having projections 521 formed downward on the left and right of the lower part of the backrest 5 is formed.
2 is fixed by welding or the like, and a connecting plate 811 having a protruding portion 812 protruding from the rear surface on both sides of the base of the upper step 81 is fixed by screws or the like. And these connecting plates 5
Mounting holes 5 at the tips of the projections 521 and 812
3, 813, the length of the central turnbuckle 60
The adjustment rod 602 that can be adjusted in Step 1 is rotatably attached. By adjusting the adjusting rod 602, the shafts 51, 61 supporting the front and rear ends of the seat plate 6 and the mounting holes 53, 8 at the distal ends of the connecting plates 52, 811 to which the adjusting rod 602 is mounted.
13 form a substantially parallelogram.

By doing so, the backrest 5, the seat plate 6
Step 8 and the operation at the time of projecting and returning to the chair are facilitated.

As shown in FIG. 15, a U-shaped slide 62 is rotatably mounted on the lower surface of the central portion of both side frames of the seat plate 6 by a slide mounting tool 63. Then, a pair of rails 32 provided with the sliding surfaces facing outward on the upper surface of the seat plate mounting portion 33 in the middle of both sides 3, 3 are provided, and these rails 32 have a U-shaped sliding 62.
Is inserted. The seat plate 6 is guided by the pair of rails 32 onto the seat plate mounting portion 33 together with the protrusion of the backrest 5, so that the seat plate 6 can be stably protruded.

At this time, the U-shaped slide 6 protruding from the limit switch 34 provided at the front of the one rail 32 is used.
2 comes into contact, stops the hydraulic pump, and
The supply of oil in the direction in which the piston rod extends is stopped.

The U-shaped slide 62 of the seat plate 6 returned to the chair comes into contact with the limit switch 35 provided at the rear of one of the rails 32, and the hydraulic pump is stopped to stop the piston rod of the hydraulic cylinder 10. Stop supplying oil in the contracting direction.

At the end of the seat plate 6, there is provided a cover 66 in which a part of a round pipe made of a synthetic resin or the like is cut out to prevent bites of pants or the like from being caught at this portion when the step 8 is protruded. is there.

A push-up bar 565 fixed in a T-shape to a pipe member 564 supported between the pipe members 561 and 561 is
The length of the tip is adjustable in the form of a turnbuckle by an adjusting rod 566, and the tip is a slot 567 as shown in FIG. And this slitting section 567
The distal end of a cam plate 211 fixed by a key 212 or the like to the center of the pipe shaft 21 is inserted into the pipe shaft 21, and is rotatably fixed by a screw 568 or the like as shown in FIG.

By doing so, when the piston rod 103 of the cylinder 10 is extended, the backrest 5, the seat plate 6
And at the same time as step 8
Push up the cam plate 211 connected to the tip of the. Then, the pipe shaft 21 is rotated 90 degrees counterclockwise from FIG. 1 (a state in which the armpit support 11 described later is parallel to the back 2) to FIG. 2 (a state in which the armpit support 11 projects from the back 2). Rotate more than °.

The left and right armpit supporters 11 are of a thickness suitable for supporting the armpits by mounting a cushion member 112 around the tip of the mandrel 111 shown in FIGS. Then, the base of each mandrel 111 is connected to a sliding shaft 113 inserted from both side ends of the pipe shaft 21.

At the time of connection, a screw rod 115 projecting at right angles to the side end of the sliding shaft 113 is screwed into a screw hole 114 attached to the base end of each mandrel 111. Then, elongated holes 116 into which the screw rods 115 screwed into the screw holes 114 of the respective mandrels 111 are inserted are formed at both ends of the pipe shaft 21, and each mandrel 111 is slidable in the pipe shaft 21. Things.

Further, a projection 117 similar to the screw rod 115 is provided on the other end of the sliding shaft 113 on which the screw rod 115 protrudes.
Each of the long holes 118 projecting from the opposite side of the projection 15 and into which these projections 117 are inserted is formed in the pipe shaft 21, and the tip of the projection 117 projects from each of the long holes 118.

In this way, the counterclockwise rotation of the pipe shaft 21 causes the projections 11
7 is similarly rotated counterclockwise. That is, the arm moves from the position of the armpit support 11 shown in FIG. 1 to the position of the armpit support 11 shown in FIG.

Each projection 1 protruding from these pipe shafts 21
17 and pushes each sliding shaft 113 toward both side ends of the pipe shaft 21, and slide rings 213 and 2 for fitting the pipe shaft 21.
13 are provided, and the projecting shaft 2
14, 214 are protruded.

As shown in FIG. 4, side plates 221 and 221 are fixed to the inner surfaces of both sides 22 and 22 of the frame constituting the back part 2 by screws or the like.
The pipe shaft 21 is rotatably inserted through the upper portions of the pipes 1 and 221.

Further, the side plates 221 and 221 below the shaft 21
21, the shafts 23,
23 are fixed by fixtures 231 and 231, and each shaft 23
Is provided with a sliding ring 232 similar to the sliding ring 213. Then, similarly to the sliding rings 213, the protruding shafts 233 and 233 are provided on the outer surfaces of the sliding rings 232 facing each other.

The U-shaped connecting plates 24, 24 of the respective projecting shafts 214, 214, 233, 233 on the outer surfaces of the respective sliding rings 213 and 232 are rotatably inserted.

Then, sliding rings 234, 234 similar to the sliding rings 232, 232 are provided on the shafts 23, 23 below the sliding rings 232, 232. As shown in FIG. 5, the connecting plates 25, 25 are provided between the projecting shafts 235, 235 provided on the outer surfaces of the sliding rings 234 facing each other and the mounting portions 60, 60 provided on the upper back of the backrest 5. Is provided.

Next, a tension coil spring 241 is provided between the dog-shaped connecting plates 24, 24 so that the sliding rings 213, 213 move toward the center. This tension coil spring 2
At 41, the left and right U-shaped connecting plates 24, 24 are pulled toward each other, and one end of each of the connecting plates 24, 24 is provided with a projection shaft 214, 2 at one end.
The sliding rings 213 and 213 rotatably inserted at 14 are always brought to the center of the pipe shaft 21. And the sliding ring 21
3,213, each elongated hole 11 drilled in the pipe shaft 21
8 is released, and the threaded rod 115 protruding from the side end of the slide shaft 113 is slidably inserted into the elongated hole 116 formed on both ends of the pipe shaft 21. I do.

Attachments 60, 60 on the upper back of the backrest 5
Rings 234 and 234 connected with connecting plates 25 and 25
Then, the intermediate portions of the U-shaped connecting plates 24, 24 are connected by wires 237, 237 via pulleys 236, 236 provided at the upper end of each shaft 23 (FIGS. 4, 5).

When the backrest 5 protrudes forward from the back 2 with the bearing plates 7 around the pipe shaft 21 from the position of the chair along the back 2, the backrest 5 is inclined.
Connecting plate 25 connected to mounting portions 60, 60
The slide rings 234 and 234 are lifted up by 25 and rise. Then, the sliding rings 234, 234 and the pulleys 236, 2
The wires 237, 237 suspended between the V-shaped connecting plates 24, 24 via the slack 36 are loosened. And the wire 23
One end of the U-shaped connecting plate 24, 24 pulled by the 7, 237 is connected to the extension coil spring 24 together with the sliding rings 213, 213.
It moves to the center of the pipe shaft 21 by the elasticity of 1. Then, the sliding rings 232 and 232 connected to the other ends of the connecting plates 24 and 24 rise.

As a result, the state in which the sliding shafts 113 are pushed toward both ends of the pipe shaft 21 is released. Then, the armpit support 11 inserted into each of the sliding shafts 113 with the screw rod 115 moves in the elongated hole 116 into which each mandrel 111 into which the screw rod 115 is screwed is inserted from both ends of the pipe shaft 21. Be free. Each of these underarm supports 11 is a long hole 1 of a pipe shaft 21.
By being movable in the inside 16, the position in the width direction of each armpit support 11 rotated to the position shown in FIG. 2 can be manually adjusted according to the chest width of the user. Then, each armpit support 11 is operated by hand and inserted into the left and right armpits of the user.

Conversely, each armpit support 11 that supports the body under the armpits returns to the chair, that is, when a switch button 202 of the hydraulic cylinder 10 described below is pressed, first, a stepping motor 16 described below is operated. Let lower step 82
To be stored. Thereafter, the hydraulic cylinder 10 operates in the direction to reduce the piston rod 103, and the push-up device 56
The pipe members 561 and 561 at the bifurcated tip are lowered. Then, the shafts 562,5 from both sides of these pipe members 561,561.
The tube members 563 and 563 in which the shaft 62 is inserted
At the same time, the push-up rod 565 fixed in a T-shape to the pipe member 564 supported by the shafts 562 and 562 between the pipe members 561 and 561 is lowered.

The pipe members 563 and 563 are connected to the shaft 5
By descending along 9, 59, the pipe member 563,
The contact of the center of the backrest 5 of the backrest 563 with the horizontal member 57 is released, and the backrest 5 retreats in the back 2 direction.

Then, the lower part of the backrest 5 is
5 is pulled back toward the back portion 2 around the pipe shaft 21 which is inserted and fitted to the bearing plates 7, 7 attached to both sides of the upper portion of the upper portion, opposite to FIG. Thus, the lower end of the backrest 5 and the rear end of the seat plate 6, and the front end of the seat plate 6 and the base end of the step 8 are rotatably supported by the shafts 51 and 61, respectively. Is pulled back to the front of the back 2 and returns to the chair.

The lowering of the push-up bar 565 causes the cam plate 21 to move.
1, the pipe shaft 21 starts to rotate clockwise, and with the rotation of the pipe shaft 21, each projection 117
Sliding shaft 11 of armpit holder 11 inserted into one long hole 118
3 is rotated in the same direction.

When the backrest 5 is pulled back to the front surface of the back portion 2, the connecting plates 25, 25 connect the mounting portions 60, 60 provided on the upper rear surface of the backrest 5 to the protruding shafts 235, 235. The sliding rings 234 and 234 start descending. Then, the connecting plates 24, 24, which are connected to the projection shaft 235 and the pulley 236 by the wire 237 via the pulley 236.
The slide rings 213 and 213 are pulled in the left-right direction against the elasticity of the tension coil spring 241 and inserted into the pipe shaft 21.
To the left and right.

The slide rings 213 and 213 push the projections 117 protruding from the respective slide shafts 113, and push the pipe shafts 21.
The left and right armpit supports 11 are moved to both lateral positions shown in FIG.

Further, the piston rod 103 of the hydraulic cylinder 10 continues to contract, the respective sliding shafts 113 rotate clockwise by 90 ° or more, and the left and right armpit supports 11 are parallel to the back 2 shown in FIG. It returns to the position.

As shown in FIG. 7, the pillow 12 is provided at the upper end 26 of the back portion 2 via the pillow fixed position maintaining device 13. As shown in FIG.
21 is attached. Then, one ends of the mounting screw rods 122, 122 are fixed to the metal fittings 121, 121.

At both ends, mounting portions 123, 123 with which the mounting screw bars 122 are screwed are fixed, and a connecting rod 125 provided with a turnbuckle-like portion 124 of which the length is adjustable at the center is provided.

The turnbuckle-like portion 1 of the connecting rod 125
As shown in FIG. 8, a similar turnbuckle portion 124 is provided on 24, and one end of a connecting rod 126 whose length is adjustable is fixed in a T-shape. Then, a mounting portion 127 provided at the other end of the connecting rod 126 is rotatably mounted on a mounting portion 128 fixed to the upper end 26 of the back portion 2 by a shaft.

On the other hand, a mounting portion 129 is fixed to the other end of each mounting screw rod 122 as shown in FIG. 9, and the tip forked bifurcated portion of the pillow fixed position operating rod 131 is bifurcated at each mounting portion 129. It is mounted on a shaft so that it can move freely. And the pillow fixed position operating rod 13
The fork part 132 below the middle of the first part 1 is supported by bearings 261 and 261 fixed to the inner surface of the upper end 26 of the back part 2.

As shown in FIGS. 7 and 8, as the pillow fixed position maintaining device 13, the base end portion 133 of the pillow fixed position operating rod 131 is connected by levers 134, 134 of which the length is adjustable. Then, projecting shafts 136 and 136 projecting from the outer peripheral surface of the tubular member 135 as shown in FIG.

A rod-like member 141 inserted into the inside of the tubular member 135 is provided on both sides of a base 142 projecting from the center.
The tilting member 14 is provided with tilting plates 143 and 143, which are provided by protruding the 4,144 outside of the distal end thereof. The shafts 144 and 144 projecting outward from the distal ends of the tilting plates 143 and 143 of the tilting member 14 are connected to the bearings 261 and 261.
It is rotatably supported on 61 and cannot be pulled out with split pins 146 and 146.

Further, a projection plate 145 for tilting the tilting member 14 around the shafts 144 and 144 is provided at the base of the tilting member 14.

Further, as shown in FIGS. 13 and 14, a pillow operating motor 15 is provided on the inner surface of the front plate 27 of the back portion 2, and the pinion 15 inserted into the drive shaft 151 of the motor 15 is provided.
From 2, the rotation of the motor 15 is transmitted to the drive gear 154 having a screw hole formed in the shaft hole via the reduction gear 153. The screw rod 1 inserted into the screw hole of the shaft hole of the drive gear 154
55 is provided, and a pipe 156 for inserting the screw rod 155 so as to be able to advance and retreat is provided.

One end of the screw 155 and the tilting member 14
The tilting member 14 is tilted around the shafts 144 and 144 by connecting the protruding plate 145 protruding from the base 142 with a connecting rod 157 and operating the pillow operating motor 15.

As shown in FIGS. 7, 10 and 11, pillow operating levers 215, 215 are provided on both sides of the cam plate 211 at the center of the pipe shaft 21. This pillow operating lever 21
5 and 215 and a projection shaft 13 protruding from an outer peripheral surface of a tubular member 135 inserted into the rod-shaped member 141 of the tilting member 14.
6,136 are connected by connecting rods 216,216.

The backrest 5 is inclined such that the lower end of the backrest 5 protrudes forward from the position of the chair along the back 2 (when the inclination is set), and by operating the pillow operation motor 15, the screw rod 155 is connected to the connecting rod. The protrusion plate 145 is pulled downward through 157. Then, the tilting member 14
Tilts clockwise about axes 144 and 144.

As described above, the pipe shaft 21 is connected to the cam plate 211.
The pillow actuation lever 21
5, 215 is rotated. As a result, the connecting rod 21
6 and 216 slides on the rod-shaped member 141 of the tilting member 14 that tilts the tubular member 135 (indicated by the dotted line in FIG. 7), and the lever 134 connected to the tubular member 135 sets the base 131 of the pillow fixed position operating rod 131. The end 133 will be pushed backwards. Then, the pillow fixed position operating rod 131 pushes forward the forked end of the pillow fixed position operating rod 131 around the intermediate portion 132, and adjusts the height of the pillow 12 with the mounting screw rods 122, 122, It can be adjusted according to the height of the user's head.

When the tilt is not set, that is, when the chair is returned to the chair state, the clockwise rotation of the pipe shaft 21 is set to 9 degrees.
The rotation of 0 ° or more disappears. Therefore, the tubular member 135 returns to the position indicated by the solid line in FIG.
The surface of the pillow 12 returns to a position (fixed position) where the surface of the pillow 12 coincides with the surface of the front plate 27 of the back part 2 as shown in FIG. Then, when the same person uses the pillow next time, it is not necessary to readjust the pillow, and the pillow 12 is at the adjusted position by operating the pillow operation motor 15.

Step 8 supported by the shaft 61 at the front end of the seat plate 6
Is composed of an upper step 81 and a lower step 82 as shown in FIGS. Then, as shown in FIG. 20, the upper step 81 has rectangular frames 81 on both sides.
4 and the upper end of the frame body 814 is inverted L-shaped member 815,
The lower surface of the lower end is fixed by a chevron member 816 arranged in an inverted triangle.

L-shaped mandrel supports 817, 817 are fixed to the lower surfaces of the rectangular frames 814, 814 on both sides of the upper step 81, respectively, in the inner surface direction.
At 17, a mandrel 85 that supports a roller 84 at several places is fixed.

As shown in FIGS. 19 and 20, a plurality of pipes 818 are fixed to the inverted L-shaped member 815 at the upper end of the upper step 81 in parallel with the rectangular frames 814 and 814 on both sides. I do.

The U-shaped rails 86, 86 into which the mandrels 85, 85 are fitted are provided on both sides of the lower step 82 so as to extend and contract from the upper step 81. It is fixed to the member 821.

The tip member 821 of the lower step 82
A pipe 822 to be inserted through a plurality of pipes 818 fixed to the upper end of the upper step 81 is fixed to the inner surface.

A reverse groove type member 8 fixed to the U-shaped rails 86 on the inner surfaces on both sides of the distal end member 821 of the lower step 82.
61 and 861 are provided. And this reverse groove type member 86
Brackets 91, 91 fixed to both sides of the footrest 9 are supported on the flanges 862, 862 facing each other by the bolts 92 and the nuts 93 so as to be rotatable.

Then, the brackets 91, 91 of the footrest 9
The lower end portion and the web portion 863 of the inverted groove type member 861, 861
The extension coil springs 864 and 864 are interposed between the extension coil springs 864 and 864. These coil springs 864 and 864 are used to connect the footrest 9 in FIG.
The folding position stored in step 8 shown in FIG. 9 (solid line)
And the use position (two-dot chain line) where the footrest protrudes from step 8, respectively, to fold and maintain the use state stably.

As shown in FIGS. 18 and 19, the stepping motor 16 is attached by fixing a mounting base 166 to the center of the upper surface of an inverted triangular chevron member 816 fixed to the lower surface of the lower end of the upper step 81. It is a thing. A pinion 162 is attached to a drive shaft 161 of the motor 16, and a drive gear 164 having a screw hole formed in a shaft hole and rotating from the pinion 162 of the drive shaft 161 of the motor 16 via a reduction gear 163 is provided. The driving gear 16
The screw rod 165 is screwed into the screw hole of the shaft hole of No. 4 and the screw rod 165 is screwed into the screw hole of the shaft hole of the drive gear 164.
65 is fixed to the center of the tip member 821 of the lower step 82.

The stepping motor 16 is used to press a switch (not shown) when the user hangs both sides on the armpit support 11, feels oppression under the armpits, and feels uncomfortable. The lower step 82 is extended according to the height of the user.

This is because when this motor 16 operates,
Drive gear 1 from pinion 162 via reduction gear 163
By rotating the screw 64, the screw rod 165 screwed into the screw hole of the shaft hole of the drive gear 164 moves forward and backward, and the lower step 82 is expanded and contracted to the upper step 81.

The expansion and contraction of the lower step 82 can be performed by pressing a switch (not shown) by the user at the time of shifting the inclination.
The degree of expansion and contraction can be adjusted according to the height of the user. For this purpose, for example, the upper end of the screw 165 whose lower end is fixed to the tip member 821 of the lower step 82 is
The upper step 8 which comes into contact when the lower step 82 is extended most.
The position of the limit switch 166 provided at the position 1 is provided to be vertically adjustable. And this limit switch 1
By moving the position 66 according to the height of the user, the position of the lower step 82 at the time of maximum extension is detected according to the height of the user, the power of the motor 16 is turned off, and the extension operation is terminated. The upper end of the screw 165 is positioned at the lower step 8
A limit switch 167 is provided at the position of the upper step 81 which abuts at the time of the maximum contraction of the second step, detects the time of the maximum contraction of the lower step 82, turns off the motor 16, and ends the contraction operation of the step 8. When one button is pressed, the motor 16 is rotated in a direction in which the lower step 82 is extended, and when the other button is pressed, the motor 16 is rotated in a direction in which the motor is contracted, and when the hand is released, the state is maintained as it is. It can also be operated by a reverse switch (not shown) or the like. By doing so, even if people of different heights are used alternately, the lower step 82 can be extended and contracted by one reverse switch or the like, which is convenient.

As shown in FIG. 1, the footrest 9 is folded when used as a chair, and as shown in FIG. 2, when used as an inclined suspension chair, the backrest 5 and the seat plate 6 are used.
And projecting at an angle of about 90 ° with step 8.
This means that when used as a sloping chair,
When the lower step 82 is fully extended by pressing the switch (not shown), the upper end of the footrest 9 folded by the lower step 82 is pushed downward by the heel of the foot to protrude. I do.

This is because the brackets 91, 91
Is rotated about each of the bolts 92 that support the shaft so as to protrude from the lower step 82.

When the lower step 82 is retracted into the upper step 81, the footrest 9 is stored in the brackets 91, 91.
The base ends of the shaft support portions of the bolts 92 and the nuts 93 project from the lower surfaces of the upper and lower steps 81 and 82. The projections 911 and 911 abut on an inverted triangle-shaped angled member 816 on the lower surface of the lower end of the upper step 81, so that the bracket 91 and the bolt 91 are centered on each bolt 92.
The tip of 91 is folded on the upper surface of the upper step 81.

When the lower step 82 is extended by pressing the button 202 when used as a chair, if the lower step 82 is extended, first, the step operation motor 16 is actuated and the lower step 82 is completely retracted. Then, the hydraulic cylinder 10 is operated.

As shown in FIG. 21, a movable caster 17 and a fixed caster 18 are provided before and after the lower end of both sides 3 and 3, respectively. These casters 17 and 18 can move up and down inside pipes 172 and 182 in which mounting bases 171 and 181 are inserted into frame members 36 at the lower ends of both sides 3 and 3. Then, the upper ends and both side portions 3, 3 of these mounting bases 171, 181 are provided.
Front and rear lower surface protruding portions 38 of the frame member 37 at the intermediate portion
And connecting rods 173 and 174, each of which is arranged in a U-shape.
183 and 184 are connected.

Further, a connecting rod 185 is provided on a vertical frame member 39 provided at the center between the lower end frame member 36 and the intermediate frame member 37 on both sides 3, 3 to support the central portion. This connecting rod 185
And the connecting rods 173, 174, 183, 184
The connecting portions 186 and 187 are connected to the square-shaped connecting portions.

Further, of these connecting rods 186 and 187, the connecting rod 187 is extended, and the end of the extending portion 188 of the connecting rod 187 and the bearing part 40 projecting upward at the front of the center of the lower end frame member 36 are provided. The shaft 189 inserted between the operating rod 19
Connect with 0.

Both ends of the shaft 189 inserted between both bearing portions 40 are projected from both side portions 3 and 3, and the base end portion 191 of the caster operating lever 19 is fixed to one of these projected ends. It is designed to be convenient for both left and right-handed people.

When the lever 19 is pulled, the casters 17, 18 protrude below the both sides 3, 3, and when the lever 19 is pushed, the casters 17, 18 are moved to the both sides 3, 3.
3 is stored.

In using the inclined suspension chair 1 of the present invention, when the user turns on the switch 20 while sitting on the chair, the lower step 82 is stored, and the hydraulic pump (not shown) of the hydraulic cylinder 10 is operated. Is done. Next, a button 20 for switching the switching valve (not shown) to the "tilt" position.
Press 1. Then, oil from the hydraulic pump is supplied to the hydraulic cylinder 10 in a direction in which the piston rod 103 extends.

Then, the piston rod 103 of the hydraulic cylinder 10 extends, and the push-up device 56 attached to the tip of the piston rod 103 rises. At the same time, the pipe members 561 and 561 at the fork end of the push-up tool 56 rise, and the pipe members 563 and 563 in which the shafts 562 and 562 are inserted into the pipe members 561 and 561 rise along the shafts 59 and 59. As the pipe members 563 and 563 move up along the shafts 59 and 59, the intermediate member 57 of the backrest 5 is pushed up, and the backrest 5 is centered on the pipe shaft 21 fixed to the bearing plates 7 and 7 above the backrest 5. The lower part protrudes forward of the back 2.

Then, the shaft holes 5 on both sides of the lower end of the backrest 5
The seat plate 6 whose both rear ends are supported by the shaft 51 at 0 and 50, and the step 8 which is supported by the shaft 61 in the shaft holes 80 at both the front end and the upper end of the seat plate 6 are the lower part of the backrest 5 With the back of the back 2 protruding forward, it protrudes.

The protruding portion of the seat plate 6 is formed by sliding a U-shaped slide 62 rotatably mounted on the lower surface on both sides of the central portion of the seat plate 6 with a mounting device 63 at a middle portion between the side portions 3 and 3. It is guided by a rail 32 provided on the upper surface of the bracket 33 and slides stably.

At this time, when the U-shaped slide 62 comes into contact with the limit switch 34 provided at the front part of one of the rails 32, the hydraulic pump is stopped and the piston rod 103 of the hydraulic cylinder 10 is extended in the extending direction. Stop oil supply.

In step 8, with the protrusion of the seat plate 6, the projecting portion 812 of the connecting plate 811 of the upper step 81 is changed to the projecting portion 5 of the connecting plate 52 in the lower portion of the backrest 5.
It is pushed out by an adjusting rod 602 connecting the first and the second 21 to each other, and is flush with the backrest 5 and the seat plate 6.

Immediately before the transition to the inclination, the pipe member 56
Push-up rod 5 together with pipe member 564 interposed between 1,561
As the 65 rises, the pipe shaft 21 rotates 90 ° or more in a counterclockwise direction, and hangs each armpit support 11 protruding armpit in accordance with the chest width of the user.

At this time, when a feeling of oppression is felt under the armpits and the user is uncomfortable, the switch (not shown) is pressed to activate the step operation motor 16 and to operate the lower step 82 adjusted according to the height of the user. Extend from the upper step 81 and take out the footrest 9. Then, the user places his or her feet on this footrest 9 and re-hangs each armpit support 11 on the armpit in a position where the user does not feel a feeling of oppression, and stores the footrest 9 with his / her heel or stops the suspension operation. can do.

The extension of the lower step 82 by actuating the step operation motor 16 causes the drive gear 164 to extend.
Is rotated, and the screw 165 is operated in the direction in which the tip member 821 of the lower step 82 is pushed out. Then, the lower step 82 is guided by the mandrel 85, 85 that supports the roller 84 that fixes the U-shaped rails 86, 86 on both sides to the mandrel receivers 817, 817 on both sides of the upper step 81, and is guided by the upper step 81. Elongate.

Also, the upper end member 815 of the upper step 81
The plurality of pipes 822 fixed to the inner surface of the distal end member 821 of the lower step 82 extend from the inside of the plurality of pipes 818 fixed in the shape of a tongue with the extension of the lower step 82 from the upper step 81.

Next, when adjusting the height of the pillow 12, the pillow operating motor 15 moves the screw 155 up and down into the pipe 156 when the backrest 5, the seat plate 6 and the step 8 are inclined. It is done by doing. That is, the lever 13 is attached to the base end 133 of the pillow fixed position operating rod 131.
4 is performed at the time of the tilting operation in which the tubular member 135 connected via 4 moves downward on the rod-shaped member 141 of the tilting member 14.

The screw rod 155 is lowered by the drive gear 154 by operating a switch (not shown) to move the pillow operating motor 15 to a position where the pillow position is high.
Then, the projecting plate 145 of the tilting member 14 connected to the screw rod 155 and the connecting rod 156 moves clockwise about the shafts 144 and 144.

As a result, the base end 133 of the pillow fixed position operating rod 131 connected to the lever 134 is
It rotates clockwise around a fork 132 that is pivotally supported by 61 and below its middle. That is, the position of the pillow 12 at the tip end of the pillow fixed position operating rod 131 becomes higher.

Conversely, when the position of the pillow 12 is to be lowered, a switch (not shown) is operated to operate the pillow operating motor 1.
When the pillow position is moved to a position where the pillow position is low, the screw rod 155 is raised by the drive gear 154. The projecting plate 1 of the tilting member 14 connected to the screw rod 155 and the connecting rod 156
45 moves counterclockwise about axes 144 and 144.

As a result, the base end 133 of the pillow fixed position operating rod 131 connected to the lever 134 is
It rotates counterclockwise around a fork 132 that is pivotally supported by 61 and below the middle. That is, the position of the pillow 12 at the tip of the pillow fixed position operation rod 131 is lowered.

When returning to the chair, the tubular member 13
5 moves upward on the rod-shaped member 141 of the tilting member 14 due to the rise of the connecting rods 216 and 216, and the projection shafts 136 and 136 and the shafts 144 and 1 projecting from the outer peripheral surface of the tubular member 135.
44 corresponds to the matched position. That is, as shown in FIG. 7, for example, the surface of the pillow 12 returns to a position (fixed position) that coincides with the surface of the front plate 27 of the back 2, and returns to the fixed position.

Further, when returning the backrest 5, the seat plate 6 and the step 8 which have been operated in an inclined manner to the chair, the switch 20 is turned on, the hydraulic pump (not shown) of the hydraulic cylinder 10 is operated, and the switching valve (not shown) is operated. (Not shown) is pressed to the "chair" position. Then, first, when the lower step 82 is extended, it is detected by the limit switch 166, and the step operation motor 16 is operated in the contracting direction of the lower step 82. Then, the lower step 82 is stored in the limit switch 16.
Then, oil from the hydraulic pump is supplied to the hydraulic cylinder 10 in the direction in which the piston rod 103 contracts.

Then, the piston rod 103 of the hydraulic cylinder 10 contracts, and the push-up member 56 attached to the tip of the piston rod 103 descends. At the same time, the pipe members 561 and 561 at the fork end of the push-up tool 56 are lowered, and the pipe members 563 and 563 in which the shafts 562 and 562 are inserted into the pipe members 561 and 561 are attached to the backrest 5 and the seat plate 6 when inclined. Etc. together with the intermediate member 57 which receives the full load. The backrest 5 descending with the intermediate member 57 receiving the full load
Is rotated clockwise around the pipe shaft 21 by the bearing plates 7 and 7 to a position where it abuts on the front surface of the back portion 2 and returns to the chair.

When returning to the chair, the hydraulic cylinder 1
0 further contracts, and the piston rod 103 and the push-up device 56 continue to descend, but the pipe members 563, 563 descend along the shafts 59, 59, thereby enabling the push-up device 56 to descend. I do.

By rotating the backrest 5 to the front of the back 2,
The shaft holes 50 on both sides of the lower end of the backrest 5 are provided with shafts 51 on both sides of the rear end.
The seat plate 6 pivotally supported by the backrest 5 and the step 8 pivotally supported by the shaft 61 in the shaft holes 80 on both sides of the front end and the upper end of the seat plate 6
Is returned to the chair position with the back part 2 attached to the front surface.

To return the seat plate 6 to the chair position, the U-shaped slide 62 rotatably mounted on the lower surface on both sides of the central portion of the seat plate 6 with the U-shaped slide 62 is attached to the intermediate portion on both sides 3, 3. Is guided and slid on the rail 32 provided on the upper surface of the seat plate mounting portion 33 of the first embodiment. Then, the backrest 5 and the seat plate 6 maintain a constant angle as a chair.

At this time, the U-shaped slide 62 comes into contact with the limit switch 35 provided on the rear portion of the one rail 32, the hydraulic pump is stopped, and the oil is supplied to the hydraulic cylinder 10 in the direction in which the piston rod 103 contracts. Stop supplying.

In step 8, with the return of the seat plate 6 to the chair, the protrusion 821 of step 8 is pulled in by the adjusting rod 602 interconnecting the protrusion 521 of the connecting plate 52 at the lower part of the backrest 5, and the backrest. 5. Return while maintaining a certain angle with the seat plate 6.

Prior to the return to the chair in step 8, the stepping motor 16 is operated to drive the driving gear 16
4 to rotate the screw 165 in the direction in which the tip member 821 of the lower step 82 is retracted. Then, the lower step 82 attaches the U-shaped rails 86, 86 on both sides to the mandrel supports 817, 817 on both sides of the upper step 81.
Guided by mandrels 85, 85 fixed to the upper step 8
Shrinks into one.

The upper end member 815 of the upper step 81
The plurality of pipes 822 fixed to the inner surface of the distal end member 821 of the lower step 82 contract with the shrinkage of the lower step 82 into the upper step 81 in the plurality of pipes 818 fixed in the shape of a squirrel.

At this time, the tip member 8 of the lower step 82
A limit switch 167 is provided in an upper step 81 in which the upper end of a screw rod 165 having a lower end fixed to 21 abuts at the most contracted end of the lower step 82. The limit switch 167 detects when the lower step 82 is in the maximum contraction state, turns off the power of the motor 16, and ends the contraction operation in the step 8.

Further, when the inclined suspension chair 1 is moved, it is returned to the chair, and the lower end frame members 36 on both sides 3, 3 are moved.
The caster operating lever 19 having the base end 191 fixed to one of the left and right protruding ends of the shaft 189, which is closer to the front of the center, is fixed by pulling it forward.

Then, the shaft 189 to which the operating lever 19 is fixed is rotated counterclockwise, and the shaft 1 inserted into the extended end 188 of each connecting rod 187 and the bearing portion 40 of the lower frame member 36 is rotated.
It rotates together with the operating rod 190 fixed between 89. Then, the connecting rods 187 are moved backward (leftward), and the connecting rods 185, which support the central portion of the vertical frame member 39 at the center thereof, are moved counterclockwise by moving the connecting rods 187 backward (leftward). By rotating, the connecting rods 183 and 184 connected in a U-shape are straightened.

At the same time, the connecting rod 186 connected to the other end of the connecting rod 185 is moved forward (to the right), and the connecting rods 173 and 173 connected to the ends of these connecting rods 186 in a V shape.
174 is straightened.

Then, the mounting bases 171 and 181 provided before and after the lower ends of the both sides 3 and 3 are lowered into the pipes 172 and 182 inserted into the frame members 36 at the lower ends of the both sides 3 and 3, respectively. The casters 17 and the fixed casters 18 are made to protrude from the lower surfaces of both side portions 3 and 3.

[0126] By doing so, the inclined suspension chair 1 that has returned to a chair shape can be moved.

When using the tilted suspended chair 1 that has been moved, the caster operating lever 19, which is fixed by pulling it forward, is released and rotated forward (to the right).

Then, contrary to the above, each movable caster 17
The fixed casters 18 and the fixed casters 18 can be housed inward from the lower surfaces of the side portions 3 and 3 and can be fixed to the floor surface.

[0129]

As described above, according to the present invention, it is possible to straighten and correct the back muscle and the like that are constantly pressed in daily life. At this time, the user is in a downwardly inclined state from the upper body to the lower limbs, and the armpits are supported, so that the back muscles and the like can be stretched for a certain period of time in a comfortable posture.

On the other hand, when it is not necessary to stretch the back, the backrest can be returned from the inclined state and used as an ordinary chair such as an office desk chair in daily life.

[0131] Therefore, even if a heavy object is lifted or transported in daily life, it is possible to perform aftercare for the back muscles, the waist, etc., so that acute back pain such as intervertebral disc herniation or chronic back pain. Will not cause.

[Brief description of the drawings]

FIG. 1 is a perspective view of the inclined suspension chair of the present invention when used as a chair.

FIG. 2 is a side view of the inclined suspension chair of the present invention at the time of transition to an inclined state.

FIG. 3 is a front view of a backrest showing a tilting mechanism of the backrest and a rotating mechanism of a pipe shaft.

FIG. 4 is a front view of a main part of a back showing an operation mechanism of an armpit support.

5 is an essential part side view of FIG. 4 showing an operation mechanism of the armpit support, showing an interlocking relationship with a backrest. FIG.

6 is an essential part plan view of FIG. 4 showing an operating mechanism of the armpit support, showing a state in which a backrest portion is parallel to the back portion.

FIG. 7 is a side view of a main part of the pillow fixed position operating mechanism, showing a partial cross section of the pillow part.

FIG. 8 is a plan view of a principal part showing a pillow fixed position operation mechanism and showing a partial cross section of a pillow part.

FIG. 9 is a partial front view of the pillow section, showing a pillow fixed position operation mechanism, which is a partial cross section of the pillow section.

FIG. 10 is a partial front view showing a pillow fixed position operation mechanism and a partial cross section showing an operation mechanism of a tilting member.

11 shows a pillow fixed position operation mechanism, (1) is a plan view of a main part showing a positional relationship between a pipe shaft, a cam plate, and a pillow operation lever, and (2) is a pillow operation lever and a connecting rod. It is the principal part front view which made the connection state a partial cross section.

FIG. 12 is a main part side view showing a pillow fixed position operation mechanism and a partial cross section showing an operation mechanism of a tilting member and a backrest.

FIG. 13 is a side view of a main part showing a mechanism for adjusting a pillow to a fixed position by a pillow operation motor, and showing a partial cross section.

FIG. 14 is a front view showing a mechanism for adjusting a pillow to a fixed position by a pillow operation motor, which is a partial cross-sectional front view.

FIG. 15 is a side view of a main part showing a slide mechanism of the seat plate, which is a partial cross section.

FIG. 16 is a partial front view showing a slide mechanism of the seat plate, and showing a partial cross section showing a mounting state of a U-shaped slide with a slide mounting tool and a positional relationship between rails.

FIG. 17 is a partial cross-sectional side view showing a mechanism in which a seat plate and a step cooperate with each other to form an inclined surface together with the inclination of the backrest.

FIG. 18 is a plan view of a main part of a step portion, showing an operation mechanism of the step.

FIG. 19 is a side view of a main part of the step portion, showing an operation mechanism of the step.

FIG. 20 is a sectional view taken along the line AA of FIG. 18, showing a step operating mechanism and omitting a step operating motor unit.

FIG. 21 is a side view of a main part of a side part, showing an operation mechanism of the caster.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 inclined suspension chair 2 back 3 side 4 plate 5 backrest 6 seat plate 7 bearing plate 8 step 9 footrest 10 hydraulic cylinder 11 armpit support 12 pillow 13 pillow fixed position maintaining device 14 tilting member 15 pillow operating motor 16 step operating motor 17 movable caster 18 fixed caster 19 operating lever 20 switch

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47C 1/034 A47C 1/036 A47C 9/00 A63B 23/00 A47C 16/00

Claims (3)

(57) [Claims] 1. Above a back fixed to both sides of a chair
The upper part of the backrest is pivotally supported, and the backrest
Step the rear edge of the seat plate to the lower edge of the
Pivotally supported at the base end of each, between the back and the backrest
The extension operation of the cylinder arranged at
And lift the seat plate and steps out of the backrest.
Form a continuous slope that descends over a step
Tilted and linked to cylinder extension
The support arm that is rotatably supported on the back
From the normal storage position to the side support position in front of the backrest.
A tilting suspension chair, wherein the armpits are supported by armpits . 2. A telescopic fit over the step in height, provided the legrest to the lower end of the step, fit and return to the backrest and the seat plate and the step of inclined transition and chairs
Legs hanging is projected from the step Te, or claim 1 Symbol placement inclined suspended chair and characterized in that housed in the step. With wherein providing the caster before and after the lower at both sides of the chair, provided the lever to one side, the pulled down and pulling of the lever, to project each caster from the underside of the chair, or, claim 1 Symbol placement inclined suspended chair is characterized by retracting the lower surface of the chair.