JP2001037813A - Seating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assist the motion when a disabled user is seated or raised. SOLUTION: This seating device is provided with a leg body 1, a seating body 12B turnably fitted to this leg body and fitting parts 8 fitted to the seating body on both the sides in the width direction, arm rest bodies 9 with middle part turnably fitted to the fitting part, and interlocking members 17 connecting the rear end part of the seating body with the rear end parts of the arm rest bodies and turning the rear end parts of the arm rest bodies in the direction of ascent by turning forward the arm rest bodies making a fulcrum of the middle part thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair suitable for use by a person with reduced muscle strength in the legs and hips.

[0002]

2. Description of the Related Art It is not easy for a user with weak muscular strength to sit or stand on a chair, and assistance from an assistant may be necessary. However, it is not easy for the caregiver to raise or sit down the user who has weak muscles in the legs and hips, and it is desired to reduce the burden on the caregiver.

In general, a chair has a seat for a user to sit on. This seat is usually provided horizontally on the leg. Therefore, when the user sits on the seat, the user has to lower the buttocks deeply to the height of the seat, and the operation places a heavy burden on the legs and hips.

[0004] When the user stands up, the user must lift the buttocks deeply lowered on the seat body, and also must extend the legs from the bent state, which places a greater burden on the user than sitting.

[0005] In order to reduce the burden on the caregiver when the user sits on a chair or stands up, a Japanese utility model 61-3
No. 401 proposes a chair. In this chair, the seat body is provided rotatably around the front end side,
The seat body is urged by a spring in a direction in which the rear end rises with the front end serving as a fulcrum.

The seat body can be held substantially horizontally against the urging force of the spring. Therefore, when the user sits down, the holding state of the seat body is released, and the seat body is inclined by the urging force of the spring. Thereby, the user can relatively easily sit down by slightly lowering the buttocks and hitting the above-mentioned seats, and when standing up, the buttocks are pushed up by the seats biased in the upward direction. Therefore, in this case, it is possible to stand up relatively easily.

[0007]

By the way, in the chair having the above structure, the seat body is urged in the rising direction by the urging force of the spring. Therefore, in order for the user to be able to stand up relatively easily, the urging force of the spring must be increased to push the buttocks of the user strongly. In addition, even when the user sits down, the urging force of the spring must be sufficiently increased to ensure that the user's buttocks can be received.

However, if the biasing force of the spring is increased, the seat must be strongly pressed by the buttocks against the biasing force of the spring when sitting down. May increase the burden on the user.

When the user releases the holding state of the seat when the user stands up, the buttocks of the user are strongly pushed by the seat according to the urging force of the spring. In the case of, the stability when standing up due to swaying of the legs and the like may be deteriorated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a seating device which allows a user to sit and stand up relatively easily without strongly urging a seat body upward in a rising direction.

[0011]

According to a first aspect of the present invention, there is provided a support, a seat body rotatably attached to the support,
A mounting portion provided on at least one of both sides in the width direction of the support, an armrest having an intermediate portion rotatably mounted on the mounting portion, and an armrest body behind the rotation fulcrum of the seat portion; An interlocking member that connects the end of the armrest to the rear end of the armrest, and pivots the armrest forward with the middle part as a fulcrum, thereby rotating the seat in the direction in which the rear end rises. And a seating device comprising:

According to a second aspect of the present invention, in the seating apparatus according to the first aspect, the seat body is urged by a spring in a rotating direction in which a rear end of the seat body rises.

According to a third aspect of the present invention, in the seating apparatus according to the first aspect, the leg and the seat are connected by a stopper link for limiting a rotation angle of the seat. It is in.

According to a fourth aspect of the present invention, there is provided the seating apparatus according to the first aspect, wherein the support is a leg having a backrest on a rear end side.

According to a fifth aspect of the present invention, there is provided the seating apparatus according to the first aspect, wherein the mounting portion is provided detachably on the support.

According to a sixth aspect of the present invention, in the seating apparatus according to the first aspect, an opening is formed in the seat body.

According to a seventh aspect of the present invention, there is provided the seating apparatus according to the sixth aspect, wherein the supporting member is provided with a mounting portion below the opening of the seat body.

With this configuration, when the user stands up, the armrest is rotated by adding weight to the armrest, or the assistant rotates the armrest so that the seat is rotated in the upright direction. If the buttocks hit the seat body when sitting, the armrest body that has turned forward is gradually turned in the falling direction, so that the seat body is also slowly turned in the falling direction. be able to. Therefore, it is possible to sit and stand up relatively easily without strongly urging the seat body in the rising direction by the spring, so that a large burden is not imposed on the caregiver.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show a first embodiment of the present invention. FIG. 1 is a perspective view showing the overall structure of a chair, and this chair has a leg 1 as a support. . The leg 1 has a pair of side members 1a. This side member 1a
The front leg 3 is formed at the front end of the seat support portion 2 and the rear leg 4 is formed substantially vertically downward at the rear end of the seat support portion 2 by using wood, synthetic resin, or the like. At the rear end of the seat support 3, a back support 5 is formed upward.

The pair of side members 1a are arranged in parallel at a predetermined interval, and the rear end of the seat support 2 is connected by a rear connecting member 6a shown in FIG. 1, and the front end is connected to the front connecting member shown in FIG. They are connected by a member 6b. Front connecting member 6
b is made of steel bar, and one end and the other end are rotatably connected to a band-shaped member 7a provided on the inner surface of one seat support 2 and an angle member 7b provided on the inner surface of the other seat support 2, respectively. Have been.

At the rear of the seat support 2, an attachment 8 is formed. The mounting portion 8 includes a horizontal member 8a and a vertical member 8b which form a rectangular frame with the back support portion 5 and the seat support portion 2.
And is formed by.

As shown in FIG. 3, a U-shaped connecting portion 10 provided on the lower surface of the middle part of the armrest 9 is turned around a front end of the horizontal member 8a of the pair of mounting portions 8 by a support shaft 11. It is movably connected. The distal end of the armrest 9 is formed as a bent portion 9a bent upward.

A pair of back supports 5 are provided with backrests 12A slightly inclined rearward, and between the pair of seat supports 3, a seat 12B is raised at the rear end with the front end serving as a fulcrum. It is provided to be rotatable in the direction of

That is, the seat body 12B comprises a seat plate 13 and a cushion portion 14 provided on the upper surface of the seat plate 13 as shown by a chain line in FIG. On the lower surface of the seat plate 13, a first U-shaped member 1 having one end fixed to one end and the other end in the axial direction of the front connection member 6b, respectively.
5 and a second U-shaped member 16 are provided. Locking grooves 15a and 16a are formed on the upper surfaces of the other ends of the U-shaped members 15 and 16 along the width direction.

An intermediate portion of an interlocking member 17, which is formed by bending a bar in a substantially U-shape, is rotatably engaged with each of the locking grooves 15a and 16a. The seat plate 13 is attached and fixed to the upper surfaces of the pair of U-shaped members 15 and 16. Thereby, the middle part of the interlocking member 17 is
As a result, it is held so as not to come off from the locking grooves 15a and 16a. That is, the interlocking member 17 is provided integrally with the seat body 12B in a rotatable state.

The distal end portions on both sides of the interlocking member 17 are bent into L-shaped engaging portions 19 outward in the width direction. The engaging portion 19 is rotatably connected to the inner surface of the rear end of the armrest body 9. As a result, the rotation of the armrest body 9 around the middle part of the armrest body 9 makes the seat body 12B
Can be linked.

A coil-shaped spring 21 is attached to an end on the side of the second U-shaped member 16 on the front connecting member 6b which rotatably supports the front end of the seat body 12B. One end of the spring 21 is engaged with the second U-shaped member 16, and the other end is engaged with the angle member 7b. This spring 2
Numeral 1 urges the seat body 12B in the rising direction in which the rear end rises.

As shown in FIGS. 2 and 3, one end of a first stopper link 22 is pivotally mounted on the side surface of the second U-shaped member 16, and the first stopper link 22 is mounted on a vertical side wall of the angle member 7b. One end of the second stopper link 23 is pivotally mounted. The first stopper link 22 and the second stopper link 23
Is rotatably connected to the other end. Further, the other end of the first stopper link 22 has the second stopper link 2
A locking piece 24 that engages with the other end of 3 and restricts the rotation angle of the stopper link 23 is bent.

When the seat body 12B is substantially horizontal, the first stopper link 22 and the second stopper link 23 are bent in a substantially V-shape as shown in FIG. When the seat body 12B rotates in the rising direction in which the rear end rises with the front end serving as a fulcrum, the bent first and second bent portions are formed.
Links 22 and 23 extend.

Then, when the seat body 12B stands up to a predetermined angle and these links 22 and 23 extend in a V-shape as shown in FIG. 2, the second stopper link 2
The other end of 3 is engaged with a locking piece 24 formed at the other end of the first stopper link 22 to limit the rotation of the seat body 12B in the rising direction.

That is, the pair of stopper links 22 and 23
Prevents the seat body 12B from rotating in the upright direction at a predetermined angle, for example, approximately 45 degrees or more. Thus, when the user stands up, the seat body 12B prevents the buttocks of the user from being pushed forward too much, and the armrest 9 is prevented from pivoting too far forward and the user's hand coming off the armrest 9. . Further, when the user sits down, it is possible to prevent the seat body 12B from being too upright and difficult to sit down.

Further, since the pair of stopper links 22 and 23 are bent in a U-shape and do not extend any further, when the seat body 12A standing upright at a predetermined angle is rotated in the falling direction. , The pair of stopper links 22 and 2
3 is surely rotated in the bending direction.

Next, a case in which the chair having the above configuration is used will be described.

When the user is not sitting on a chair,
As shown in FIG. 1, the seat body 12 </ b> B is in an upright state in which the rear end is raised by the urging force of the spring 21. At this time, since the armrest body 9 also rotates in conjunction with the armrest body 9, the armrest body 9 is inclined forward.

As described above, the seat body 1 which has been turned upright.
When the user sits on 2B, the user places his or her hand on the bent portion 9a of the armrest 9, lowers the buttocks and touches the seat 12B. In this state, when the force applied to the armrest 9 is gradually reduced, the seat 12B rotates together with the armrest 9 in the falling direction.

Therefore, regardless of the magnitude of the urging force of the spring 21 that urges the seat body 12B in the upright direction, the user can
By adjusting the rotation speed of the armrest body 9 by the force applied to the armrest body 9, the buttocks can be dropped while the seat body 12B is gently rotated in the falling direction. It is possible to sit while reliably maintaining the state supported by the vehicle.

That is, the user can sit down while slowly descending the buttocks. In this case, if the user cannot increase or decrease the force applied to the armrest 9, the assistance can be performed by the assistant instead, so that the user can be seated relatively easily.

When the user in the seated state stands up, the user or the assistant stands up while rotating the armrest 9 in the upright direction by putting a hand on the front end of the armrest 9. When the armrest 9 is rotated, the seat 12 </ b> B interlocks with the rotation via the interlocking member 17.

[0040] Therefore, the user can stand up without any heavy load on his / her legs because the buttocks are pushed up by the seat body 12B. Also in this case, the spring 2
Regardless of the strength of the urging force, the seat body 12B can be surely rotated in the rising direction by the armrests 9, so that the user can be reliably assisted to get up from the chair.

That is, since the rotation of the seat member 12B and the armrest member 9 are interlocked, even if the urging force of the spring 21 for urging the seat member 12B in the upright direction is weak, the seat member can be seated at the time of sitting. When the body 12B receives the buttocks of the user, the body 12B can be prevented from suddenly turning in the falling direction.
The user's buttocks can be reliably pushed up by 2B.

By reducing the urging force of the spring 21, the force of the seat body 12B rotating in the ascending direction at the time of sitting can be weakened.
2B makes it harder to be squeezed.

The distal end of the armrest 9 was formed as a bent portion 9a bent upward. Therefore, armrest 9
When the user sits on the tip of the armrest and stands, or when the user stands up, the hand on the tip of the armrest 9 is not slippery, so the rotation of the seat 12B can be reliably operated by the armrest 9. can do.

Further, since the rotation angle of the seat body 12B in the upright direction is limited by the first and second stopper links 22 and 23, the seat body 12B is rotated too much and it is difficult to seat. Nothing. In addition, the first and second stopper links 22, 23 prevent the rotation of the seat body 12B in a state of extending in the shape of a letter, and do not extend any further. , 24 can be reliably bent in a V-shape.

Next, another embodiment of the present invention will be described. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 4 shows a second embodiment of the present invention. In this embodiment, the armrest 9 is provided only on one side in the width direction of the seat 12B. According to such a configuration, the armrest 9 is not provided on the other side of the seat 12B. When the user sits down or stands up, the assistant becomes easier to assist. Further, when the user sitting on the seat body 12B is moved to a bathtub or a bed, the work becomes easy.

FIG. 5 shows a third embodiment of the present invention. This embodiment has substantially the same configuration as the first embodiment, but differs in that the leg 1 is not provided with the backrest body 12A.

FIG. 6 shows a fourth embodiment of the present invention. This embodiment is almost the same as the second embodiment.
The difference is that the pair of side members 1a of the leg 1 is formed of a pipe material and that the back support 5 is eliminated because the backrest body 12A is not provided.

FIG. 7 shows a fifth embodiment of the present invention. This embodiment is different from the fifth embodiment in the structure in which the seat body 12B is rotatably provided. That is, one member supporting one end of the front connecting member 6b is changed from the angle member 7b to the U-shaped member 7c. One end of the first link 31 is connected to one end of the front connection member 6b. A first roller 32 is rotatably provided at the other end of the first link 31. The first roller 32 is a U-shaped guide member provided on the lower surface of the rear end of the seat body 12B. 33 so as to be able to roll.

An intermediate portion of the second link 34 is pivotally connected to an intermediate portion of the first link 31 by a pin 35. A second roller 3 is attached to one end of the second link 34.
The second roller 36 is rotatably engaged with the U-shaped member 7c. Further, the other end of the second link 34 is pivotally connected by a pin 38 to a connecting piece 37 provided at the front end of the lower surface of the seat body 12B.

A spring 21 is mounted on the front connecting member 6b, and the spring 21 urges the first link in an upright direction.

According to such a configuration, the seat body 12B interlocked with the rotation of the armrest body 9 is provided with the first and second links 3A and 3B.
The trajectory of the rotation is set by the undulations of 1,34. That is, when the seat body 12B rotates in the upright direction, when the first link 31 rotates about the front connecting member 6b as a fulcrum, the second link 34 is connected to the second roller 36 by the U-shaped member 7c. Is rotated in the upright direction while rolling forward.

Therefore, the seat body 12B is connected to the second link 3
4, the user stands up while moving forward, and the user's hips are pushed forward when standing up by the movement of the seat body 12B, so that the user can easily stand up.

FIGS. 8 and 9 show a sixth embodiment of the present invention. The seating device of this embodiment is different in that a frame 41 is used as a support instead of the leg 1 of the first embodiment.

By using the frame 41 as a support, this seating device can be connected to a seat 43 of another chair 42 as shown in FIG.
Can be used by mounting on top. Further, although not shown, it is also possible to use it by placing it on a seat of a wheelchair instead of the chair 42, and further, it can be used like a chair.

In the sixth embodiment, the backrest body 12A may or may not be provided.

FIGS. 10 to 12 show a seventh embodiment of the present invention. This embodiment is different from the first embodiment in the shape of the seat body 12B. That is, the seat body 120B of this embodiment has a horseshoe shape having the opening 50.

The leg 10 on which the seat 120B is provided
A has a pair of side members 51 obtained by bending a pipe material into a mountain shape, and these side members 51 have a front end side and a rear end side shown in FIG.
As shown in (1), the pipe members are connected by a pair of connecting members (only one is shown) 52 bent in an inverted mountain shape.

The connecting member 52 is formed by connecting a plate member to the connecting member 5.
A mounting member 53 having an inverted mountain shape that is substantially the same as that of the mounting member 53 is provided. At the upper end on both sides of the mounting member 53, bent portions 54 bent horizontally are formed.
4 are provided with U-shaped mounting members 55, respectively.

An inverted U-shaped receiving member 56 is provided on the lower surface on both sides of the seat body 120B. This receiving member 56
12 enters the inside of the mounting member 55 as shown in FIG. 12, and their front ends are rotatably connected by a connecting shaft 57. The connecting shaft 57 has the receiving member 56,
That is, the spring 21 for urging the seat body 120B in the upright direction is provided.

A rod member 58 constituting an attachment portion is provided upright on the side member 51, and a connecting portion 10 provided at an intermediate portion of the armrest 9 is pivotally connected to an upper end of the rod member 58 by a support shaft 11. Have been.

An engaging groove 56a is formed on the upper surface of the rear end of the receiving member 56, the lower end of the interlocking member 17a is engaged with the engaging groove 56a of each receiving member 56, and the lower surface of the seat body 120B is used. The engaged state is maintained. Each interlocking member 17
The other end of a is engaged with the rear end of each armrest 9.

That is, in this embodiment, the connecting shaft 57 and the interlocking member 17a are each divided into two.
Thereby, even if the opening 51 is formed in the seat body 120B, the connection shaft 57 and the interlocking member 1
7a is not exposed.

An intermediate portion of the placing member 53 is a horizontal placing portion 53a, on which a toilet 58 can be placed as shown by a chain line in FIG. . Further, a large number of through holes 59 are formed in the mounting portion 53a.

According to such a configuration, the seat 120B is interlocked with the rotation of the armrest 9 via the interlocking member 17a, as in the above embodiments. Further, since the opening 51 is formed in the seat body 120B, and the placing portion 53a is provided below the opening, the user places the toilet bowl 58 on the placing portion 53a so that the user can sit down. It can be excreted in a posture sitting on the body 120B. Further, by placing this seating device in the bathroom, the user can sit in the seat 120B while sitting.
The buttocks facing the opening 51 can be washed.

In each of the above embodiments, the seat body 12
B and 120B are urged in the rising direction by the spring 21, but the seat body 12B120B does not have to be urged by the spring 21. In short, if the seat bodies 12B and 120B are rotated in the rising direction at the time of seating. Good. That is, when the spring 21 is not provided, if the armrest body 9 is rotated forward at the time of standing, the seat portions 12B and 120B can be rotated in the rising direction. It can be used in the same manner as the case where the spring 21 is provided at the time of sitting.

Further, the seat body 12B is rotatably provided by attaching the front end to the front connecting member 6b provided on the leg 1, but the seat 12B is not rotatable except for the front end. The portion may be attached to the front connecting member 6b.

[0068]

According to the first aspect of the present invention, the seat body and the armrest body are rotatably provided, and the rotation is interlocked by the interlocking member.

[0069] Therefore, the user can gently rotate the armrest with his or her hand on the armrest at the time of sitting and standing up. Can be prevented, and the user's buttocks can be reliably pushed up when standing up. In other words, even a user with a weak leg can easily and reliably perform the operation of sitting or standing up, and thus can easily assist the user.

According to the second aspect of the present invention, the seat body is urged in the upright direction by the spring.

Therefore, when the user is not sitting on the seat, the seat can be rotated in the upright direction by the urging force of the spring. It does not need to be turned upright.

According to the third aspect of the present invention, the stopper link for restricting the rotation of the seat body in the rising direction is provided between the leg body and the seat body.

Since the armrest can be prevented from rotating more than necessary through the seat, it is possible to prevent the armrest from rotating excessively and the user's hand from coming off the armrest. it can.

According to the fourth aspect of the present invention, since the support on which the seat is provided is a leg, it can be used as a chair.

According to the fifth aspect of the present invention, since the mounting portion is detachably provided on the support, the seat that is linked to the rotation of the armrest is mounted on the seat of another chair. It can be used by placing it.

According to the sixth aspect of the present invention, since the opening is formed in the seat body, by providing the toilet below the opening, the user can excrete while sitting.

According to the seventh aspect of the present invention, since the placing portion is provided below the opening, a toilet for discharging the user in a state where the user is seated on the placing portion can be reliably provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a chair showing a first embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a perspective view showing a connection structure between a seat body and an armrest body;

FIG. 4 is a perspective view of a portion of a seat body showing a second embodiment of the present invention.

FIG. 5 is a perspective view of a chair according to a third embodiment of the present invention.

FIG. 6 is a perspective view of a chair according to a fourth embodiment of the present invention.

FIG. 7 is a side view showing a mounting structure of a seat body according to a fifth embodiment of the present invention.

FIG. 8 is a perspective view of the overall configuration showing a sixth embodiment of the present invention.

9 is a cross-sectional view showing a state where the seat body having the configuration shown in FIG. 8 is mounted on another support.

FIG. 10 is a perspective view of a chair according to a seventh embodiment of the present invention.

FIG. 11 is a longitudinal sectional view of the same.

FIG. 12 is an enlarged sectional view showing a mounting structure of the seat body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Leg 8 ... Mounting part 9 ... Armrest body 12A ... Backrest body 12B ... Seat part 17 ... Interlocking member 21 ... Spring 22 ... 1st stopper link 23 ... 2nd stopper link

Claims (7)

[Claims] 1. A support, a seat body rotatably mounted on the support, a mounting portion provided on at least one of both widthwise sides of the support, and An armrest body in which the middle part is rotatably attached, and an end portion of the seat body behind the rotation fulcrum and a rear end of the armrest body are connected to each other, and the armrest body is used as a fulcrum. A seating device comprising: an interlocking member that rotates the seat body in a direction in which a rear end portion of the seat body rotates upward by rotating the seat portion body forward. 2. The seating device according to claim 1, wherein the seat body is urged by a spring in a direction in which a rear end of the seat body rises. 3. The seating device according to claim 1, wherein the leg and the seat are connected by a stopper link that limits a rotation angle of the seat. 4. The seating device according to claim 1, wherein the support is a leg having a backrest on a rear end side. 5. The seating device according to claim 1, wherein the mounting portion is configured to be detachably provided on the support. 6. The seating device according to claim 1, wherein an opening is formed in the seat body. 7. The seating device according to claim 6, wherein a mounting portion is provided below the opening of the seat body on the support.