JPH07108016A - Storable bed device - Google Patents

Abstract

PURPOSE:To easily handle a bed during use or unuse thereof by turning a board member incorporating castors down so as to stand up a plurality of frames in a bed body from a horizontal posture into a vertical posture in order to fold the bed body. CONSTITUTION:After a mattress 23 is removed from a bed body 1, a foot board member 9 is moved while a head board member 6 is turned clockwise by means of lower castors 7, and accordingly, frames 2a, 2b are curved into a crown shape. From this condition, the board member 6 is further moved toward the board member 9 so that the frames 2a, 2b stand substantially upright. At this time, a pair of leg members 15, 18 are turned down by means of links 21, 22 in a direction in which they are made into contact with the lower surface of the frame 2b. Then, the board member 9 is lifted up while a frame 2c is turned in order to make the board member 9 into contact with the lower surface of a frame 2c. Then, the mattress 23 having been folded is set on the board member 6 which has been turned into a horizontal posture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retractable bed device which can be folded small when not in use.

[0002]

2. Description of the Related Art Generally, a bed apparatus has a bed body on which bedding such as a mattress or a futon is placed. The bed body is supported at a predetermined height in a substantially horizontal state by a headboard body connected to one end in the longitudinal direction and a footboard body connected to the other end.

Since the bed body is formed to be longer than the user's height, its length is about 2 m, and the width dimension is about 1 m for a single bed. Therefore, since the bed device occupies a large amount of room space when not in use, it is very disturbing, and particularly in a house where the room is used for multiple purposes, the use of the room is restricted. is there.

Therefore, it is desired to develop a bed device that can be folded and made small when not in use. When the bed device is configured to be foldable, the bed body is divided into a plurality of frames and the frames are rotatably connected so that the frames are folded into a joined state when not in use. It is designed to be smaller than when used.

However, the bed body is provided with a plurality of frames.
When divided into frames, leg members must be provided on the lower surface of each frame so that they can be raised and lowered, and they must be erected when in use and laid down when not in use. Therefore, the user has to perform up-and-down operation of the leg member each time it is used or not used, which is sometimes difficult to use.

When the bed main body is folded when not in use, one frame supported horizontally is superposed on the other frame connected to the frame by rotating the other frame by approximately 180 degrees. I am trying. Therefore, it is necessary to rotate the other frame by 180 degrees while lifting the other frame, which requires a large amount of labor and the operability may be very poor.

[0007]

As described above, in the conventional foldable bed apparatus, the leg members supporting the divided frames must be raised and lowered each time when used or when not used. In some cases, the frame had to be rotated about 180 degrees when it was folded, which made the operation difficult. The present invention has been made based on the above circumstances, and an object thereof is to provide a retractable bed apparatus that can be easily operated when in use or not in use.

[0008]

SUMMARY OF THE INVENTION In order to solve the above problems, according to the present invention, a bed main body in which a plurality of frames are foldably connected is provided, and an intermediate portion in the height direction is fixed to one end of the bed main body. A first board body connected to the first board body and a second board body having a middle portion in the height direction rotatably connected to the other end, and a board provided on the first board body. The traveling means that supports the carriage freely, the leg member that is rotatably connected at one end to the lower surface of the frame located in the middle of the bed body, and the frame is horizontal. The leg members are prevented from rotating in a state of being unfolded so that the plurality of frames are supported horizontally by the leg members and the pair of board bodies, and the first board body is tilted. However, when the frame is folded, a link mechanism for interlocking the leg members in the fall direction is provided. And wherein the door.

[0009]

According to the above construction, a plurality of frames can be folded by tilting the first board while it is running from a vertical state, and the leg members are linked to the folding of the frames. It can be linked by a mechanism.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention, and the retractable bed apparatus shown in FIGS. 1 and 2 is a bed main body 1
Is equipped with. The bed body 1 is composed of first to third frames 2a, 2b and 2c which are rotatably connected to each other and have substantially the same length dimension. Each frame is a frame member 3a
And a wire net 3b stretched over the frame member 3a.

As shown in FIG. 2 (a), the first frame 2a and the second frame 2b are connected at their lower surfaces at one end by a first hinge 4a to form a second frame. Mu 2
The other end of b and the third frame 2c are connected at their upper surfaces by a second hinge 4b. As a result, the connecting portion between the first frame 2a and the second frame 2b can be bent upward, and the second frame 2a can be bent.
The connecting portion between b and the third frame 2c can be bent downward.

One end of a connecting rod 5 having a predetermined length is connected to both sides of the other end of the first frame 2a. At the other end of these connecting rods 5, an intermediate portion in the height direction of the headboard body 6 is fixed. That is, the headboard body 6 is connected so that its plate surface is orthogonal to the first frame 1a.
At both ends of the lower end of the headboard body 6, its lower end,
A pair of lower casters 7 is provided so as to be exposed on the inner surface and the outer surface, and a pair of upper casters 8 is provided at both ends of the upper outer surface. The headboard body 6 can be run by the lower casters 7 from a state of standing upright to a state of lying down substantially horizontally, and when lying down horizontally, the upper casters 8 are also grounded, so both casters 7, 8
It is movably supported by.

A footboard body 9 is arranged at the other end of the third frame 2c. As shown in FIGS. 1 and 2 (a), one side of the angle member 11 is connected to the inner surfaces of both ends of the footboard body 9 in the width direction. One end of a first link 12 and a second link 13 that is longer than the first link 12 is pivotally attached to the other side of the angle member 11. The other ends of the links 12 and 13 are pivotally attached to the inner surface of the other end of the frame member 3a of the third frame 2c. As a result, the footboard body 9 is held in a substantially vertical state at right angles to the third frame 2c, and from that state, it is rotated counterclockwise as indicated by the arrow in FIG. It can be joined to the lower surface of the third frame 2c.

As shown in FIG. 1, the second frame 2b is provided.
A pair of first leg members 1 are provided on one side of the lower surface on one side in the width direction.
One end of 5 is pivotally attached. A first reinforcing rod 16 is installed on the other ends of the pair of first leg members 15.

Brackets 17 are vertically provided on both sides of the other end of the second frame 2b. An upper side of a second leg member 18 is pivotally attached to each bracket 17. A second reinforcing rod 19 is provided on the lower ends of the second leg members 18, and a third link 21 is provided on the upper ends thereof.
One end of is pivoted. The other end of each third link 21 is pivotally attached to the upper portion of the first leg member 15. One end of the fourth link 22 is pivotally attached to a midway portion of the first leg member 15. The other end of the fourth link 22 is pivotally attached to one end of the first frame 2a.

The first to third frames 2a to 2c are supported by the headboard body 6, the footboard body 9, the first leg member 15 and the second leg member 18 in a substantially horizontal state. To be done. At that time, the first leg member 15 and the second leg member 15
The length of the third link 21 is set so as to form a V-shape with the leg member 18 of the first leg member 15.
As shown in FIG. 3 (a), the fourth link 22 and the fourth link 22 form a symmetric angle with respect to a perpendicular line V intersecting the connecting point between the first frame 2a and the second frame 2b. It is set.

The distance from the pivotal end of the first leg member 15 to the center point where the other end of the third link 21 is connected is a, the second
If the distance from the center point where one end of the third link 21 of the leg member 18 is connected to the center point where the second leg member 18 is pivotally attached to the bracket 17 is b, then a = b is set. ing. Thereby, the 1st leg member 15 and the 2nd leg member 18 can be rotated by the same angle.

Further, the length of the fourth link 22 is c, and the first
If the distance from the pivot center of the leg member 15 to the point at which the other end of the fourth link 22 is pivoted is d, then c = d. Thereby, the second frame 2b can be surely interlocked with the first frame 2a and folded.

Further, the headboard body 6 is attached to the first frame.
If the length of the connecting rod 5 connected to the frame 2a is e and the supporting height of the bed body 1 by the first and second leg members 15 and 18 is f, then e = f. As a result, the first and second frames 2b and 2c can be folded with the third frame 2c held substantially horizontally.

On the upper surface of the bed body 1 is placed a mattress 23 which can be folded in three in correspondence with the frames 2a to 2c. A handle 24 is provided on one side of the first frame 2a, and engages with the handle 24 when the bed body 1 is folded as described later on one side of the third frame 2c. Hook 25 that keeps its folded state
Is rotatably provided.

In the retractable bed apparatus constructed as above, the bed body 1 can be horizontally expanded as shown in FIGS. 1 and 2 when it is used, and it can be folded as shown in FIG. 3 when it is not used. Since it is possible, it can be stored in a folded state, for example, in a closet or the like. The folding of the bed apparatus is performed as follows. First, when the mattress 23 is removed from the bed body 1, the grip 24 provided on the first frame 2a is touched, or the headboard body 6 is moved by the lower caster 7 as shown in FIG. While rotating in the clockwise direction indicated by
By moving to the side, one end side of the first frame 2a of the bed body 1 is raised and the other end side to which the headboard body 6 is connected is lowered. As a result, the second frame 2b connected to one end of the first frame 2a ascends, so that these frames have a mountain shape as shown by the chain line in FIG. 3 (a). To bend.

From this state, the headboard body 6 is further moved to the footboard body 9 side by the lower caster 7,
The upper caster 8 is also grounded and rotated to a horizontal state. Thereby, the first frame 2a and the second frame 2a
The upper and lower surfaces 2b and 2b stand almost vertically, and the lower surface side of these is joined.

As shown in FIG. 2A, the first frame is
The first leg member 15 is rotated in the direction of arrow X by the fourth link 22 in conjunction with the rotation of the frame 2a. The rotation of the first leg member 15 causes the third link 21 to slide in the direction indicated by the arrow Y.
The leg member 18 rotates in the direction opposite to the rotation direction X of the first leg member 15 indicated by the arrow Z. Therefore, by folding the first frame 2a and the second frame 2b,
The pair of leg members 15 and 18 are laid down in the direction of joining to the lower surface side of the second frame 2b.

When the second leg member 18 rotates in the fall direction, the supporting state of the one end of the third frame 2c becomes unstable. However, since the headboard body 6 is connected to the first frame 2a through the connecting rod 5 having a length substantially the same as the supporting height of the third frame 2c, FIG.
The sum of the first frame 2a indicated by A and the length e of the connecting rod 5 is substantially equal to the sum of the second frame 2b indicated by B and its supporting height f.

Therefore, while the lower caster 7 of the headboard body 6 is running, the other end of the third frame 2c is folded in the process of folding the first frame 2a and the second frame 2b. It is prevented that the side supporting height fluctuates greatly. As a result, one end side of the third frame 2c is displaced downward with the other end side supported by the second board body 9 as a fulcrum,
Since the one end does not come into contact with the floor surface, it is possible to prevent the floor surface from being damaged.

The first frame 2a and the second frame 2b
After folding and, the third frame 2c is joined to the upper surface side of the second frame 2b by lifting and rotating the other end side to which the footboard body 9 is connected. If the third frame 2c is erected, the first and second frames are formed on the other end side.
The footboard body 9 connected by the links 12 and 13 can be joined to the lower surface side of the third frame 2c.

Next, when the hook 25 is engaged with the handle 24 and the folded state of the bed body 1 is maintained, as shown in FIG. 2 (b), the headboard body 6 is laid down horizontally.
Place the folded mattress 23 on top. In that state, the casters 7, 8 can be moved as a whole, so that they can be easily accommodated in, for example, a closet. As a result, the indoor space can be effectively used when not in use.

When the bed body 1 is folded, the frames 2a to 2c may be rotated substantially 90 degrees from the substantially horizontal state to be substantially vertical. Therefore, so that they overlap
The folding can be easily performed with a light force as compared with the conventional case in which the folding must be performed by rotating 180 degrees.

4 to 6 show a second embodiment of the present invention. The bed main body 31 of this embodiment includes first to fourth frames 32a, 32b, 32c and 32d which are rotatably connected to each other and have substantially the same length dimension. Each frame is formed of a frame member 33 and a wire net 33b stretched around the frame member 33a.

As shown in FIGS. 4 and 5 (a), the first frame 32a and the second frame 32b are connected at their lower surfaces at one end by a first hinge 34a, and at the second frame.
The other end of the frame 2b and the one end of the third frame 32c are connected at their upper surfaces by a second hinge 34b. The other end of the third frame 32c and the one end of the fourth frame 32d are connected at their upper surfaces by a third hinge 34c.

As a result, the connecting portion between the first frame 32a and the second frame 32b can be bent upward, and the fourth frame 32d can be bent by the third hinge 34c.
With the fulcrum as a fulcrum, the other end can be rotated upward.

One end of a connecting rod 35 having a predetermined length is connected to both sides of the other end of the first frame 32a. At the other end of each of the connecting rods 35, an intermediate portion in the height direction of the footboard body 36 is fixed. That is, the footboard body 36 is connected with its plate surface orthogonal to the first frame 31a. A lower caster 37 is provided at the lower end of the footboard body 36, and an upper caster 38 is provided on the upper outer surface.
Is provided. The footboard body 36 can be run by the lower casters 37 from a state of standing vertically to a state of lying down substantially horizontally, and when lying down horizontally, the upper casters 38 also come into contact with the ground, so both casters 37, 38. Can be driven by.

The fourth frame of the third frame 32c.
A support leg 40 is vertically provided on the lower surface on the side of the frame 32d, and a caster 40a is provided at the lower end thereof. A headboard body 39 is arranged at the other end of the fourth frame 32d. One side of the angle member 41 is connected to the inner surfaces of both ends of the headboard body 39 in the width direction. On the other side of the angle member 41, one ends of a first link 42 and a second link 43 that is longer than the first link 42 are pivotally attached. The other ends of the links 42 and 43 are pivotally attached to the inner surface of the other end of the frame member 3a of the fourth frame 32d. As a result, the headboard body 39 is rotated in a counterclockwise direction indicated by an arrow in FIG. 5A from a substantially vertical state orthogonal to the fourth frame 32d, and the fourth frame 32d is rotated. It can be joined to the lower surface of the frame 2d.

One end portions of a pair of first leg members 45 are pivotally attached to the bottom surfaces on both sides in the width direction of one end portion of the second frame 32b. A first reinforcing rod 46 is provided on the other ends of the pair of first leg members 45.

Further, brackets 47 are vertically provided on both sides of the other end of the second frame 32b. The middle part of the upper side of the second leg member 48 is pivotally attached to each bracket 47. A second reinforcing rod 49 is installed on the lower end of the second leg member 48, and one end of a third link 51 is pivotally attached to the upper end of each. The other end of each third link 51 is pivotally attached to the upper portion of the first leg member 45. One end of the fourth link 52 is pivotally attached to the middle of the first leg member 45. The other end of the fourth link 52 is pivotally attached to one end of the first frame 32a.

The above first to fourth frames 32a to 32
d is the foot board body 36 and the head foot board body 3
9, the caster 40a, the first leg member 45, and the second leg member 48 support in a substantially horizontal state. At that time, the length of the third link 51 is set so that the first leg member 45 and the second leg member 48 have a V-shape, and the first leg member 45 and The fourth link 52 is set so as to form a symmetric angle with respect to a perpendicular line V that intersects the connection point between the first frame 32a and the second frame 32b.

The dimensions a to f shown in FIG. 6A are set to a = b, c = d, and e = f, as in the first embodiment. The dimension f in this embodiment is determined by the support leg 40.
Is the height of support of the third frame 32c.

On the upper surface of the bed main body 31, a bedding 53 formed by the frames 32a to 32d as bedclothes and having a length substantially the same as the length of the bed main body 31 is placed. The first frame 32a, the second frame 32b, and the fourth frame 32d are respectively the third frame 32.
It can be held by holding means (not shown) in a state of being rotated substantially at right angles to d. The holding means may be a handle and a hook as in the first embodiment, and is not particularly limited.

With this structure, the bed body 31 can be folded as shown in FIG. 8 from the unfolded state shown in FIGS. 4 and 5 (a) when not in use. That is, the first
Frame 32a and the second frame 32b are erected almost vertically on one end side of the third frame 32c, and the fourth frame 32d is erected on the other end side thereof, and its lower surface side The headboard body 39 can be joined to the. Bed body 3
1 with the futon 53 placed on the bed body 3
When 1 is folded, the futon 53 is held in the state shown by the chain line in FIG. 5 (b).

Since the folded bed body 31 is supported by the three casters 37, 38, 40a, the bed body 31 can be easily moved and stored in a predetermined place.

The bed body 31 has four frames 32a ...
Since it is divided into 32d, the height dimension when folded can be made lower than that when it is divided into three, so that it can be easily accommodated even in a low push-in case. Moreover, the first and second frames are used with respect to the third frame 32c.
By folding the frames 32a and 32b and the fourth frame 32d, the overall shape when folded is almost U-shaped. Therefore, when the futon 53 is placed on the bed body 31, The bed body can be folded.

In each of the above-mentioned embodiments, casters are used as the traveling means in order to allow the board body to travel, but instead of the casters, a resin spherical shape capable of sliding on the floor surface is used. Alternatively, a circular member or another slidable member may be used.

[0043]

As described above, according to the present invention, by rotating the board body provided with the casters in the tilting direction,
A plurality of frames of the bed body can be erected from a horizontal state to a vertical state and folded, and in conjunction with this, the leg members supporting the frames can be laid down by a link mechanism.

Therefore, since the bed body can be folded by simply rotating the frame 90 degrees, the folding operation is easier and easier than in the conventional case where the bed body must be rotated 180 degrees to be folded. Since the caster can be folded while the board is running, it may be easy to fold. Furthermore, since the ups and downs of the leg members can be interlocked with the folding of the bed body, this also improves the operability.

[Brief description of drawings]

FIG. 1 is a perspective view of a bed apparatus according to a first embodiment of the present invention.

2A is a side view of the same, and FIG. 2B is a side view of the same folded state.

FIG. 3A is a schematic view showing the movement of each part at the time of folding, and FIG. 3B is a schematic view explaining the supporting state of the third frame at the time of folding.

FIG. 4 is a perspective view of a bed apparatus according to a second embodiment of the present invention.

5A is a side view of the same, and FIG. 5B is a side view of the same when folded.

FIG. 6A is a schematic view showing the movement of each part at the time of folding, and FIG. 6B is a schematic view explaining the supporting state of the third frame at the time of folding.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Bed main body, 2a-2c ... Frame, 6 ... 1st board body, 7 ... Casters, 9 ... 2nd board body, 15 ...
1st leg member, 18 ... 2nd leg member, 21 ... 3rd link (link mechanism), 22 ... 4th link (link mechanism).

Claims (1)

[Claims] 1. A bed main body in which a plurality of frames are foldably connected, a first board body in which a middle portion in the height direction is fixedly connected to one end of the bed main body, and the other end thereof. A second board body in which a middle portion in the height direction is rotatably connected, a traveling means provided on the first board body for movably supporting the board body, and the bed. A leg member whose one end is rotatably connected to the lower surface of the frame located in the middle of the main body, and which prevents rotation of the leg member when the frame is horizontally deployed. A plurality of frames are supported horizontally by the leg member and a pair of board bodies, and the leg members are collapsed when the frame is folded while the first board body is collapsed. A retractable bed device comprising a link mechanism that is interlocked with the direction.