JPH10215981A - Bed device also served as chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bed device also served as a chair for a sickroom capable of being easily folded and used as the chair in a folded state relating to a bed for a nurse used inside the sickroom. SOLUTION: This device is constituted of a seat part main body 1, a front backrest part 2 whose one end is freely turnably connected to the seat part main body 1, a rear backrest part 3 whose one end is freely turnably connected through a connection member 4 to the other end of the front backrest part 2 with each other, a leg part 5 freely turnably connected to the other end of the rear backrest part 3, an intermediate supporting leg 7 provided on the connection member 4, a locking member 6 for maintaining a using state as the bed and the using state as the chair and an operation part 9 for helping a folding operation from the bed to the chair. Then, the locking member 6 is provided on the end part on the side of the seat part main body 1 of the front backrest part 2 and is freely attachable and detachable to/from the side of the leg part 5 of the rear backrest part 3 and the seat main body 1 and the operation part 9 is constituted on the connection member 4 so as to lift the connection member 4 along with the intermediate supporting leg 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attending bed used particularly in a hospital room.

[0002]

2. Description of the Related Art Conventionally, an attending bed used in a sickroom is built into a bed, and is used by being pulled out from the lower part of the bed at the time of use. There was something. All of these functions only functioned as beds, and the chairs used by attendants were prepared separately.

[0003]

An object of the present invention is to provide a chair / bed device for a hospital room which can be easily folded and can be used as a chair in a folded state.

[0004]

Means for Solving the Problems Therefore, the present invention is configured as a first means for solving the above-mentioned problems. The present invention relates to a seat main body and a front end which is rotatably connected to the seat main body. A backrest portion, a backrest portion having one end rotatably connected to the other end of the front backrest portion via a connecting member, and a leg portion rotatably connected to the other end of the backrest portion. And an intermediate support leg provided on the connecting member, a lock member for maintaining a use state as a bed and a use state as a chair, and an operation unit for assisting a folding operation from the bed to the chair.

Further, the present invention is constituted as a second means. In the first means, the lock member is provided at an end of the front backrest portion on the seat body side, and the seat body and the backrest are provided. The present invention is characterized in that it is configured to be able to be freely engaged and disengaged with the leg side of the backrest.

Further, the present invention is configured as a third means in that the operating portion is formed on the connecting member so that the front backrest portion, the rear backrest portion, and the intermediate support leg can be simultaneously lifted.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention provides a seat body, a front backrest part having one end rotatably connected to the seat body, and one end with the other end of the front backrest part via a connecting member. A backrest portion rotatably connected to the backrest portion, a leg portion rotatably connected to the other end of the backrest portion, an intermediate support leg provided on the connection member, a state of use as a bed, and a chair. A lock member for maintaining a use state of the bed, and an operation unit for assisting a folding operation from the bed to the chair, wherein the lock member is provided at a seat body side end of the front backrest, And the operating portion is configured as a connecting member configured to be able to simultaneously lift the front backrest portion, the rear backrest portion, and the intermediate support leg, and the operating portion is configured as a connecting member. Is what it is.

[0008]

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. In FIG. 1, the left side is referred to as front and the right side is referred to as rear. 1 shows a state of use as a bed, reference numeral 1 denotes a seat body, reference numeral 2 denotes a front backrest portion rotatably connected to a rear end of the seat body 1, and reference numeral 3 denotes a connection. A rear backrest portion rotatably connected to the rear end portion of the front backrest portion 2 via a member 4 is shown. Reference numeral 5 is connected rotatably below the rear end portion of the rear backrest portion 3. The legs are shown.

FIG. 2 shows a state used as a chair,
In a folded state, a lock portion 6 provided on the seat body 1 side of the front backrest portion 2 is engaged with the leg portion 5 side of the rear backrest portion 3,
The state of use as a chair is maintained. Reference numeral 7 denotes an intermediate support leg fixed to the inner surface of the connecting member 4, and reference numeral 8 denotes a band 80 on the seat body 1, the front backrest 2, and the backrest 3.
.. Indicates a mattress attached thereto, and reference numeral 9 indicates an operation unit provided on the connecting member 4.

The seat body 1 has an upper frame 10 formed in a U-shape in plan view from a round pipe with the front backrest 2 side open, and upper ends fixed to the four corner lower surfaces of the upper frame 10 and casters on the lower surface. Left and right front and rear legs 11, 11, 1 having 111...
Lock holes 13, 13 of the lock portion 6 are formed in the upper portions of the inner surfaces of the left and right rear legs 12, 12. Reference numerals 14 indicate leg reinforcing bars provided between the front and rear legs 11, 12 and between the left and right rear legs 12, 12.

The front backrest portion 2 has a round U-shaped cross-section at the end on the side of the seat body 1 and has rotatable connecting portions 21 and 21 which are fitted to the left and right ends of the upper frame body 10 from above. Left and right front backrest frames 22, 22 made of pipes, and pivotally connected to the front ends of the upper frame 10 in a state in which the rotary connecting portions 21, 21 are fitted over the left and right ends of the upper frame 10 from above. By the stop connection, the front backrest 2 is connected to the seat body 1 so as to be rotatable only upward.

The connecting members 4, 4 are inverted triangles, and the left and right ends on the rear side of the front backrest 2 and the left and right ends on the front side of the backrest 3 are pivotally connected to the front and rear ends of the inner surface on the bottom side. The intermediate support leg 7 is fixedly protruding downward from the inner surface on the top side.
An inverted L-shaped stopper projection 41 that projects inward above the
The front backrest 2 and the rear backrest 3 are rotated upward with respect to the connecting members 4, 4 while the left and right end portions of the front backrest 2 and the backrest 3 are in contact with the upper surface. Has been blocked. An operation section 9 is provided on one of the connecting members 4 and 4 (on the side where the operation lever 60 of the lock section 6 is located) and formed of a cloth belt to assist the folding operation from the bed to the chair. .

The rear backrest portion 3 is formed in a U-shape in plan view with the front backrest portion 2 side made of a round pipe open, and has the same inner surface on the rear end side as the locking holes 13 corresponding to the lock portion 6. Rear locking holes 31, 31 are formed, and downwardly L-shaped leg mounting seats 50, 50 for rotatably connecting the support legs 7 are fixed slightly behind the rear locking holes 31, 31, respectively. .

The leg 5 has an inverted T-shape and leg mounting seats 50, 50.
Of the seat body 1 and the intermediate support legs 7, 7 project outward to the left and right sides and are pivotally connected to each other, and casters 51.
Are mounted, folded and used as a chair, the casters 111...
5 can be easily moved as a whole.

The lock member 6 is composed of support substrates 61, 61 attached to the inner surfaces of the rotary connecting portions 21, 21, and an operating rod that penetrates the elongated hole 611 of the support substrate 61 on the side where the operation portion 9 is provided. 62 and the movement of the operating rod 62
, And a lock rod 65 which is engaged and disengaged with the locking holes 13, 13 and the rear locking holes 31, 31 by operating the operating rod 62.

The operation rod 62 has a laterally L-shape and is rotatably connected to a support projection 63 formed on the inner surface of the support substrate 61 through a connection seat, and is always connected between the inner surface of the support substrate 61 and the operation rod 62. Is biased so as to rotate upward by a spring 60 which is stretched. The lock rod on the operation rod 62 side is provided on the inner surface of the support substrate 61 below the support protrusion 63.
The guide rod 64 is connected to the lower end of the operation rod 62 via a connection seat so as to be movable in the left-right direction in the guide hole 640 at the center of the guide cylinder 64.

One end of the interlocking rod 66 is rotatably connected to the other end of the operating rod 62 opposite to the side of the lock rod 65 via a connection seat, and the other end is formed on the inner surface of the other support substrate 61. The support protrusion 631 is rotatably connected to the upper end of an intermediate member 67 whose center in the up-down direction is rotatably connected via a connection seat.

The lock rod 65 on the opposite side of the operation rod 62 is provided at the center of the guide cylinder 641 and formed in the inner surface of the support substrate 61 below the support protrusion 631 so as to be movable in the left-right direction. It is connected to the lower end of the member 67 via a connection seat.

The present invention is configured as described above, and FIG.
In the state of use as the bed shown in FIGS. 3 and 4 (FIGS. 3 and 4), the locking rods 65 engage with the locking holes 13 formed in the inner surfaces of the left and right rear legs 12, 12 of the seat body 1, Lock rod 6
5 and 65 are held by guide tubes 64 and 641,
4, 641 are fixedly attached to the support substrates 61, 61,
Since the support substrates 61, 61 are connected to the rotary connection portions 21, 21 fixed to the left and right front backrest frames 22, 22,
The folding of the seat body 1 and the front backrest portion 2 is prevented, and at the same time, the lower end surfaces of the intermediate support legs 7 touch the floor, and the stopper projections 4
The left and right end portions of the front backrest portion 2 and the rear backrest portion 3 are in contact with the upper surfaces of the front backrest portion 1 and the front backrest portion 3 to secure the strength of the central portion.

In this state, the seat body 1 or the leg 5
Is lifted and the center support leg 7 is lifted off the floor, so that the casters 111...
.. Can be easily moved. Also, even if the seat body 1 and the leg 5 are simultaneously lifted,
The front backrest 2 and the rear backrest 3 are attached to the stopper projections 41, 41.
Since the left and right end portions of the are in contact with the upper surface, the connecting member 4,
It is safe without bending at the point of 4.

On the other hand, when used as a chair from a state where the bed is used, the operating rod 62 of the lock section 6 is moved downward, and the lock rods 65, 65 are engaged with the left and right rear legs 12, 12. When the operation unit 9 is lifted in a state where the operation unit 9 is deviated from the stop holes 13 and 13 (the state illustrated in FIGS. 5 and 6),
The connecting members 4, 4 and the intermediate support leg 7 are lifted upward, and at the same time, the front backrest portion 2 and the rear backrest portion 3 are rotated downward with the connecting members 4, 4 as base points, and furthermore, the hands are held down. The leg 5 is moved forward along with the forward movement of the rear end of the backrest 3, and the front backrest 2 and the backrest 3 are brought into a parallel state as shown in FIG.

At this time, the lock rods 65, 65 are projected outward of the connecting members 4, 4 by the spring 60, but the tips are formed in a hemispherical shape, and the backrest 3 is also a round pipe. The lock rods 65, 65 are automatically engaged with the rear locking holes 31, 31 by the folding operation, and maintain the folded state (the use state as a chair, shown in FIG. 2). .

In order to more easily perform the engagement operation of the lock rods 65, 65, a tapered guide member (not shown) which is gradually lowered toward the lock rods 65, 65 is provided on the rear backrest portion 3. They may be formed near the rear locking holes 31, 31 and the locking holes 13, 12 of the left and right rear legs 12, 1 of the front backrest 2.

[0024]

According to the first aspect of the present invention, since the legs are rotatably attached to the backrest, the legs move smoothly on the floor surface during folding, so that the folding operation is easy. In addition, since the intermediate support leg is formed between the front and rear back portions via a connecting member, the operating state as a bed is stabilized, and the operating portion for assisting the folding operation with the lock member is configured. By doing so, the safety at the time of use as a bed and a chair can be improved, and the folding operation from the bed to the chair is easy. According to the invention described in claim 2, the lock member is provided at an end of the front backrest portion on the side of the seat body, and is configured to be freely disengageable from the leg side of the seat body and the backrest portion. Therefore, the function can be effectively exerted in any of the horizontal posture (the state used as a bed) and the inclined posture (the state used as a chair) of the front backrest, so that it can be manufactured at low cost. According to the third aspect of the present invention, the operating portion is configured as a connecting member capable of lifting the connecting member together with the intermediate support leg. Since the initial folding operation of the backrest can be measured, the folding operation is very easy.

[0025]

[Brief description of the drawings]

FIG. 1 is a side view of a state used as a bed of the present invention.

FIG. 2 is an enlarged side view of a state used as a chair of the present invention.

FIG. 3 is an enlarged cross-sectional view of a right side portion in a state where a lock rod is locked to a seat body.

FIG. 4 is an enlarged cross-sectional view of a left portion in a state where a lock rod is locked to a seat body.

FIG. 5 is an enlarged cross-sectional view of a right side portion in a state in which a lock rod deviates from a seat body.

FIG. 6 is an enlarged cross-sectional view of a left portion in a state where a lock rod deviates from a seat body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat main body 2 Front backrest part 3 Rear backrest part 4 Connecting member 5 Leg seat 6 Lock member 7 Intermediate support leg 9 Operation part

Claims (3)

[Claims] 1. A seat body, a front backrest having one end rotatably connected to the seat body, and one end rotatably connected to the other end of the front backrest via a connecting member. A backrest portion, a leg portion rotatably connected to the other end of the backrest portion,
An intermediate support leg provided on the connection member, a lock member provided on the front backrest for maintaining a use state as a bed and a use state as a chair, and an operation unit for assisting a folding operation from the bed to the chair. A chair / bed apparatus characterized by being constituted. 2. The locking device according to claim 1, wherein the locking member is provided at an end of the front backrest portion on the side of the seat body, and is configured to be freely engageable and disengageable with the leg portion of the seat body and the backrest portion. Claim 1
2. The chair / bed apparatus according to item 1. 3. The chair / bed apparatus according to claim 2, wherein the operation unit is configured by a connecting member capable of simultaneously lifting the front backrest, the backrest, and the intermediate support leg.