JPH0937896A - Bed serving also as sofa - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve handleability by making a supporting body erectable and fallable and connecting a movable backrest halfbody to the supporting body so as to be displaced to an extended bed position and a sofa position. SOLUTION: At the time of a sofa mode, the supporting bodies 20 present at both end parts of a floor base 11 are in the erected state of being extended and raised upwards from the short side parts 12 of the floor base 11 and used as armrests. At this time, the respective movable backrest half bodies 30 connected to the supporting bodies 20 on both sides are held at the sofa position of being mutually continued in a longitudinal direction approximately parallelly to the long side parts 13 of the floor base 11. At the time of converting to a bed mode, the movable backrest half bodies 30 are displaced and held at a normal bed position along the upper part of the short side parts 12 of the floor base 11. Further, when the supporting bodies 20 are turned to a flat state by being brought down to be approximately horizontal from the respective short side parts 12 to the outer side of the floor base 11 and the movable backrest half bodies 30 are also displaced to the extended bed position of being brought down to be approximately horizontal accompanying them, since the backrest surface of the movable backrest half bodies 30 and the upper surface of the floor base 11 are continued on the approximately same plane, a floor area is secured more widely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed mode in which a pair of movable backrest halves are respectively located along the short sides of the floor base, and the long sides of the floor base. The present invention relates to a sofa-combinable bed that can be converted into a sofa mode in which the pair of movable backrest halves are positioned so as to be substantially parallel to each other in the longitudinal direction.

[0002]

2. Description of the Related Art Conventionally, various sofa / beds have been manufactured and sold.
A completely new type of sofa / combinable bed, which can be converted into a bed mode and a sofa mode, as represented by the sofa / combined bed disclosed in Japanese Patent No. 020, is proposed.

In this new type of sofa / bed, as shown in FIGS. 13 and 14, basically, a headboard 2 or a footboard 3 is erected on both short sides of a floor base 1. The movable backrest halves 4 and 5 are displaceably supported on the boards 2.3 via support mechanisms 6 and 6, respectively.

In the bed mode, as shown in FIG. 13, the movable backrest halves 4 and 5 are connected to the boards 2 and 3, respectively.
The floor base 1 is held in a non-covered position. on the other hand,
In the sofa mode, as shown in FIG. 14, the movable backrest halves 4 and 5 are moved to and held at positions substantially parallel to the longitudinal direction of the floor base 1.

Further, the following type of bed is also known as another sofa / bed. The sofa / combined bed shown in FIG. 15 is an armrest at both ends of the floor base 1 when used as a sofa, and when used as a bed, cushions 7 that form a floor surface continuously with the mattress on the floor base 1 are provided. It is provided. The sofa-combined bed shown in FIG. 16 is configured to be bendable so that one end side 8a of the floor base 8 rises, and the one end side 8a of the raised floor base 8 can be used as it is as a sofa back. Is.

[0006]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In the sofa / bed shown in FIGS. 13 and 14 previously proposed by the applicant,
In bed mode, the movable backrest halves 4 and 5 that are not used can be placed in positions that do not interfere with each other, which is an excellent effect that it is convenient to use. Since the backrest surfaces of the movable backrest halves 4 and 5 are arranged so as to extend along the tops 2 and 3, the backrest surfaces of the movable backrest halves 4 and 5 are slightly bulged toward the center of the floor base 1.
Therefore, there is a possibility that the floor area of the floor base 1 in the bed mode is slightly narrowed and the comfort of sleeping is impaired.

In view of the reduction of the floor area, the floor base 1
If it is designed with a margin in advance in the longitudinal direction, the mattress provided on the floor base 1 must be prepared in a larger size than the standard size. Moreover, in the sofa mode, although the floor area is not so large, the floor area cannot be changed, so that it remains unnecessarily large.
There has been a problem that the result is contrary to the request for space saving.

Further, in the sofa / bed shown in FIG. 15, when it is used as a sofa, a separate backrest 9 must be prepared.
As shown in (a), it is necessary to dispose along the longitudinal direction of the floor base 1, which is cumbersome, and when used as a bed, the backrest 9 which is a separate body is not worth using at all. There was a problem that the storage location was also a problem.

Further, in the sofa / bed shown in FIG. 16, when it is used as a sofa, it is seated so as to face the longitudinal direction of the floor base 8. For example, when the bed width is a normal single size, Only one person could sit down. Therefore, when the size is set so that two people can sit, the width of the bed is inevitably double, and there is a problem that a large occupied space must be secured when the bed is used.

The present invention has been made by paying attention to the problems of the prior art as described above. For example, the backrest in the sofa mode can be stored in a position not in the way in the bed mode. , It can be easily displaced so as to extend the floor area by continuing to the floor base, and if necessary, the floor area can be extended to ensure a comfortable sleep, or when a large floor area is not necessary or a sofa The purpose is to provide a sofa / bed that can be placed compactly and has excellent usability and is extremely compact.

[0011]

In order to achieve the above-mentioned object, the gist of the present invention is as follows. First, in the invention according to claim 1, short side parts (which are both ends of the floor base (11) ( 1
2) A pair of movable backrest halves (30, 3)
0) respectively, and the pair of movable backrest halves (30, 30) are connected to each other in the longitudinal direction substantially parallel to the long sides (13) of the floor base (11). A sofa-combinable bed (10, 10A) that can be converted into a sofa mode located, which includes a support (2
0) standing up from above the short side portion (12) of the floor base (11) to achieve the bed mode or the sofa mode, and from the short side portion (12) to achieve the bed mode. The movable backrest half body (30) is supported by both ends of the floor base (11) so that it can be erected in a prone state in which it falls substantially horizontally toward the outside of the floor base (11). When (20) is in a prone state, the support (20) is in an upright position, and the support (20) is tilted substantially horizontally together with the support (20) so that the backrest surface is continuous with the upper surface of the floor base (11). At this time, the normal bed position along the short side portion (12) of the floor base (11) and the long side portion (13) of the floor base (11) when the support body (20) is also in the upright state. Is connected to a support body (20) so as to be displaceable to a sofa position substantially parallel to That the sofa-bed (10, 10
It exists in A).

Next, in the invention according to claim 2, when the support body (20) is in an upright state, the movable backrest half body (30) is at least substantially horizontal with respect to the support body (20). A link mechanism (40) for rotatably connecting,
The link mechanism (40) includes a movable back half (30,
A pair of hinge brackets (42, 42) each having one piece (43) fixed to the back side of the support (20, 20) and the other piece (44) being rotatable, and each hinge bracket (42). , 42) and a link arm member (41) pivotably supported at both ends on the other piece (44) of the sofa (42).
Exist in.

Further, in the invention according to claim 3, the angle of the support can be adjusted at least between the standing state and the prone state via the reclining device (60A).
A first arm member (20A) supported on both ends of the floor base (11), and a second arm member (20B) at the tip end portion of the first arm member (20A) through a reclining device (60B). 20B) is angularly adjustable and the tip of the second arm member (20B) is angularly adjustable via a reclining device (60C) to the back side of the movable back half (30). The sofa-combined bed (10A) according to claim 1, characterized in that

Furthermore, in the invention according to claim 4, when each of the movable backrest halves (30) is at the sofa position,
The sofa-bed (1) according to claim 1, 2 or 3, further comprising a lock mechanism (50) for connecting the ends of the movable backrest halves (30) facing each other.
0,10A).

Next, the operation of the present invention will be described. Claim 1
According to the sofa / bed (10) of the present invention, in the sofa mode, the supports (20) on both ends of the floor base (11) are located closer to the shorter side portion (12) of the floor base (11). If the support (20) extends upward and is formed in the shape of an armrest, the seated person can use it as an armrest as it is. At this time, the movable backrest halves (30) connected to the support bodies (20) on both sides are positioned so that the movable backrest halves (30) are substantially parallel to the long side portions (13) of the floor base (11) and extend in the longitudinal direction of the sofa. Being held in, the seated person can lean back as a backrest.

In order to convert from the sofa mode to the bed mode, the movable back half (30) is displaced with respect to the support (20) in the upright state, and the floor base (1) is moved.
It may be held at the normal bed position along the short side (12) of 1). At this time, the movable back half (30)
Does not hinder the floor base (11) from being greatly covered. In addition, when reading with the upper body raised on the bed, it is possible to lean against the movable backrest half (30) along the short side portion (12) of the floor base (11), which is practical. Can also be used for

Further, the support body (20) is tilted substantially horizontally from the respective short side portions (12) toward the outside of the floor base (11) to be in a prone state, and accordingly, the movable back half (3).
0) is also displaced substantially horizontally to the extended bed position, the backrest surface of the movable back half (30) and the floor base (11).
Since the upper surface of the above is substantially flush with the same plane, a larger floor area can be secured at this time.

According to the sofa / bed (10) of the second aspect, the movable backrest half (30) is securely connected to and supported by the support (20) by the link mechanism (40). When the movable backrest half (30) is displaced to the sofa position by the movement of the link mechanism (40) itself, the mattress provided on the upper surface of the floor base (11) can be The height position can be adjusted according to the thickness. Further, when the movable back half body (30) is displaced to the extended bed position, the edge of the movable back half body (30) is brought into contact with the short side portion (12) of the floor base (11) without any gap. It can also be arranged by adjusting the position.

According to the sofa / bed (10A) of the third aspect, the movable backrest half (30) is used.
Is supported on both ends of the floor base (11) by a simple supporting mechanism including a first arm member (20A) as a support and a second arm member (20B) connected to the first arm member (20A), and further, the reclining device ( 60A-60C),
It can be easily moved and held in the desired angular position. Thereby, the movable back half (30) can be displaced more freely and finely to a desired position in each mode.

Furthermore, according to the sofa combined bed (10, 10A) of the fourth aspect, when the movable backrest halves (30) are in the sofa position, the movable backrest halves (30) facing each other are provided. A lock mechanism (5
0) can be securely connected, and each movable back half (3
Even if the weight of the seated person is applied to 0), they can be fixed to each other so that they do not easily move.

[0021]

Various embodiments of the present invention will be described below with reference to the drawings. 1 to 9 show a first embodiment of the present invention. As shown in FIG. 1, a sofa / bed 10 according to the present embodiment includes a floor base 11 and a pair of short sides 12 and 12 that are both ends of the floor base 11 and are supported so as to be capable of being erected. Of the support bodies 20 and 20, and a pair of movable backrest halves 30 and 30 movably connected to the support bodies 20, respectively.

The floor base 11 is of a normal single size having a width of, for example, about 80 cm, and is constructed by incorporating a frame material inside a rectangular cushion material. Although the upper surface side of the floor base 11 has a sufficient cushioning property, a standard type mattress or the like may be laid separately. Further, leg portions 14, 14 ... Integral with the frame member are provided at four corners of the floor base 11.

The pair of supports 20, 20 is formed by bending a flat plate material into an armrest shape so as to have a strength capable of sufficiently withstanding a load such as a person's weight. In the sofa mode, a seated person is seated. Is designed to be used as an armrest.
The support body 20 is in an upright state (see FIG. 1) extending upward from the short side portion 12 of the floor base 11 and the short side portion 12.
It is supported on both ends of the floor base 11 so as to be able to rise and fall in a lying state (see FIG. 4) in which it falls substantially horizontally toward the outside of the floor base 11.

More specifically, the support 20 comprises an upper part 22 on which an elbow can be placed, and side parts 23, 23.
The lower ends of 3, 23 are rotatably supported by the upper ends of the leg portions 14, 14 at the corners of the short side portion 12 of the floor base 11 via a pivot pin 16. As shown in FIG.
An arcuate guide notch 24 centered on the pivot pin 16 is formed at the lower end of the.

The guide notch 24 is formed on the side wall of the leg portion 14.
A position holding stopper 15 is provided so as to be engaged with the inside so as to be relatively movable along the inside. As shown in FIG. 8A, when the position holding stopper 15 is engaged with the one end edge 24a of the guide notch 24, the support body 20 is held in the upright state, while the position holding stopper 15 is As shown in FIG. 8B, the support body 20 is set so as to be held in a flat state when being engaged with the other end edge 24b of the guide notch 24.

The pair of movable backrest halves 30 and 30 are linked and supported to the supports 20 and 20 through link mechanisms 40 so that they can be displaced mainly in a substantially horizontal direction. As shown in FIG. 1, the movable back half 30 is formed by mounting a thin frame plate 33 on the back side of a cushion pad 32 formed in the shape shown. The movable backrest halves 30 and 30 have a sofa position (see FIG. 2) substantially parallel to the long side portion 13 of the floor base 11 and a short length of the floor base 11 when the support body 20 is in an upright state. It can be displaced to a normal bed position (see FIG. 3) along the upper side 12.

Further, as shown in FIG. 4, each of the movable backrest halves 30 and 30 is held on the support body 20 in a substantially horizontal state when the support body 20 is laid down in a prone state, and its backrest surface is held. It is also configured to be displaced to the position of the expansion bed connected to the upper surface of the floor base 11. As described above, the sofa / bed 10 includes the movable backrest halves 30, 30.
To the sofa position shown in Fig. 2
The mode is set, and when the normal bed position shown in FIG. 3 or the extended bed position shown in FIG. 4 is displaced, the sofa mode having different floor areas is set.

The link mechanism 40 is for movably connecting and supporting the movable backrest half body 30 to the support body 20. As shown in FIGS. 1 and 9, the link mechanism 40 includes a link arm member 41 and a pair of hinge brackets 42, 42 pivotally supported by pivot pins 46 at both ends thereof. One piece 43 of each hinge bracket 42 is fixed to a substantially central portion of the frame plate 33 of the movable back half 30 and a bent portion of the support body 20, respectively. Further, the other piece 44 connected to the one piece 43 via the knuckle portion 45 is rotatably connected to both ends of the link arm member 41 via pivot pins 46.

Also, the sofa / bed 10 has a structure in which the pair of movable backrest halves 30, 30 are at the sofa position,
It has a locking mechanism 50 for connecting the ends of the respective movable backrest halves 30 facing each other. As shown in FIG. 1, the lock mechanism 50 includes a bar member 51 pivotally supported on an end of one movable back half 30.
And a retaining bracket 52 fixed to the end of the other movable backrest half 30 so that the front end of the bar member 51 fits.

That is, each movable backrest half 30, 30
When the bar is displaced to the sofa position, the bar member 51 rotated so as to extend from the end of the one movable backrest half 30 is
When the movable back half halves 30 and 30 are fitted to the other movable back half halves, the movable back half halves 30 and 30 are connected to each other in the longitudinal direction so as to be firmly held.

Next, the operation of the sofa / bed 10 according to the present embodiment will be described. As shown in FIG. 1 and FIG. 2, when the sofa / bed 10 is in the sofa mode, the supports 20 on both ends of the floor base 11 are fixed to the floor base 1.
1 is in an upright state in which it extends upward from the short side portion 12 of 1. At this time, as shown in FIG. 8A, the position holding stopper 15 on the leg portion 14 is engaged with one end edge 24 a of the guide notch 24 at the lower end of the support body 20, and the support body 20 is It is held upright.

The movable backrest halves 30 connected to the supports 20 on both sides are held by the link mechanism 40 in a sofa position where they are substantially parallel to the long side portions 13 of the floor base 11 and are continuous with each other. ing. The height position of each movable backrest half body 30 at this time can be appropriately adjusted by the vertical movement of the link mechanism 40 according to the thickness of the mattress or the like on the upper surface of the floor base 11, for example.

In such a sofa mode,
The seated person can lean on each movable back half 30, 30, can be used just like a normal sofa, and can also rest his elbow on the upper part 22 of the support 20. Further, since the end portions of the movable backrest halves 30 and 30 are connected to each other by the lock mechanism 50, even if the pair of movable backrest halves 30 and 30 that are continuous in the longitudinal direction bear the weight of the seated person, Does not significantly deform to the back side.

By removing the bar member 51 of the lock mechanism 50 from the latch bracket 52, the movable backrest halves 30, 30 can be removed.
By the link arm member 41 of the link mechanism 40,
It can be easily moved in a substantially horizontal direction with respect to the support 20 in the upright state. Therefore, the sofa / bed 10
To convert the sofa mode from the sofa mode to the bed mode, as shown in FIG. 3, each movable back half 30 is held by the link mechanism 40 while the support 20 is held upright. It may be displaced to the normal bed position along the short side portion 12 of 11.

Each of the movable backrest halves 30 in the normal bed position does not largely cover the floor base 11 and does not obstruct the use of the bed. Further, when the user lifts his / her upper body on the bed and reads a book, he / she can lean against one movable backrest half 30 along any one of the supports 20 and can be used practically. Although not shown in the drawings, each movable backrest half body 30,
31 is usually fixed to the bed position.

In the bed mode shown in FIG. 3, each movable backrest half 30 is connected to the short side portion 1 of the floor base 11.
In order to arrange the movable backrest halves 30 so that they are arranged along the upper part of the floor base 11,
A little bulges toward the center of the. Such bets
If you feel that the floor area is a little small in mode,
It can be converted to another bed mode.

That is, the support 20 is substantially horizontal from the respective short sides 12 toward the outside of the floor base 11 in FIG. 5 with the pivot pin 16 whose lower end is pivotally supported as the center of rotation. Defeat them to prostrate. At this time, as shown in FIG. 8B, the position holding stopper 15 on the leg portion 14 engages with the other end edge 24b of the guide notch 24 at the lower end of the support body 20, so that the support body 20 is It is held in a prone state. Of course, only one of the supports 20 may be held flat.

As shown in FIGS. 4 and 7, when the support body 20 is laid down in the prone state, the movable backrest half body 30 is also displaced to the extended bed position in which it is laid down substantially horizontally.
The backrest surface of the movable backrest half body 30 and the upper surface of the floor base 11 are substantially continuous on the same plane. Therefore, it is possible to secure a larger floor area. Each movable back half 3 at this time
Since the horizontal position of 0 can be adjusted appropriately by the movement of the link mechanism 40 itself, it is advisable to adjust the position so that the end edge of the movable back half 30 contacts the short side portion 12 of the floor base 11 without a gap. .

As described above, according to the sofa / bed 10 of the present embodiment, the movable backrest half 30 is
In the bed mode, it can be stored in a position that does not interfere, and further, it can be easily displaced so as to extend the floor area by continuing to the floor base 11, and the floor area can be extended as necessary. It can be placed compactly when a comfortable and comfortable sleep is secured, or when a large floor area is unnecessary or when it is used as a sofa.

10 to 12 show a second embodiment of the present invention. The sofa-combined bed 10A according to the present embodiment is basically similar in overall configuration and displacement to the sofa-combed bed 10 according to the first embodiment, but the support is the armrest-shaped one described above. Unlike FIG. 10, as shown in FIG.
The first arm member 20A is supported on both end sides of the floor base 11 so that the angle can be adjusted at least between the standing state and the lying state via A.

The base end portion of the second arm member 20B is connected to the tip end portion of the first arm member 20A so that the angle can be adjusted through the reclining device 60B. A frame plate 33, which is the rear side of the movable backrest half body 30, is fixed to the tip end portion of the second arm member 20B via the reclining device 60C so that the angle can be adjusted.

The first arm member 20A, the second arm member 20B, and the reclining devices 60 as described above.
A to 60C allows the pair of movable backrest halves 30 to be independently displaced to various positions including the sofa position, the normal bed position, and the extension bed position described above, and to be held at the position. It is supported by the corners at both ends of the table 11. Here, the reclining devices 60A to 60C are like hinges whose angles can be adjusted steplessly or in multiple steps, and one example thereof will be briefly described below.

As shown in FIG. 12, the reclining devices 60A to 60C are fixed to one side of a fixed bracket 61, and the fixed bracket 61 is rotatably supported by a fixed shaft 61 through a pivot shaft 63. And a movable bracket 62 fixed to the side. Tooth portions 61a, 61a ... Are engraved on the outer peripheral edge of the fixed bracket 61. A claw member 64, which can be successively fitted to the tooth portions 61a, 61a ... When pivoting relative to the fixed bracket 61, is pivotally supported on the movable bracket 62 via a pivot shaft 65 so as to be swingable. Has been done.

The claw member 64 is biased counterclockwise in FIG. 12 so as to be elastically fitted to the tooth portion 61a by the spring member 66. Further, a disengagement member 67 is pivotally mounted on the fixed bracket 61 by a tubular member 63 a fitted onto the pivot shaft 63. This mesh release member 6
In order to swing the claw member 64 to a position where it cannot fit into the tooth portion 61a against the biasing force of the spring member 66, the claw member 64 rides on the outer peripheral edge 67a thereof. At the end of the outer peripheral edge 67 a of the engagement releasing member 67, the claw member 64
A guide taper 67b for smoothly riding on the outer peripheral edge 67a is formed.

Sofa bed 1 according to the present embodiment
According to 0A, the movable seat back halves 30 and 30 can be fixed more freely and easily at a fine position, and can be appropriately adjusted to a desired form in each mode, and various variations of form changes can be enjoyed. You can Moreover,
Since the structure is further simplified, the cost can be reduced.

The structure of the sofa / bed according to the present invention is not limited to the illustrated specific embodiment, and for example, the first embodiment and the second embodiment may be combined. . In addition, as the technology related to the present invention,
The movable backrest halves may be provided not in pairs but only in one. Further, the shape of the support and the specific configuration of the lock mechanism are not limited to those shown in the drawings.

[0047]

EFFECTS OF THE INVENTION According to the sofa / bed according to the present invention, the backrest in the sofa mode is stored in a position where it does not interfere in the bed mode, or it is connected to the floor base so that the floor area is continuous. Can be easily displaced so as to expand, and when used as a bed, the floor area is expanded as needed to ensure a comfortable sleeping comfort, or when a large floor area is not needed or when used as a sofa In this case, it can be compactly arranged and the demand for space saving can be satisfied.

If the movable back half is connected to the support through the link mechanism, the displacement operation of the movable back half can be facilitated, and the movement of the link mechanism itself can
For example, when displacing the movable backrest half to the sofa position, the height position can be adjusted according to the thickness of the mattress or the like provided on the upper surface of the floor base. Further, when displacing the movable backrest half to the extended bed position, it is possible to adjust the position so that the end edge of the movable backrest half is in contact with the short side portion of the floor base without a gap, thereby realizing an optimum configuration. You can

Further, the movable back half is supported on both end sides of the floor base by a simple supporting mechanism including a first arm member as a support, a second arm member connected to the first arm member, and a reclining device. Then, the movable back half can be easily displaced and held at a desired position in a fine and free manner, so that a variety of forms can be enjoyed and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a state in which a sofa / bed according to a first embodiment of the present invention is in a sofa mode, as viewed from the rear.

FIG. 2 is a perspective view of a state where the sofa / bed according to the first embodiment of the present invention is in the sofa mode, as viewed from the front.

FIG. 3 is a perspective view showing a state where the sofa / bed according to the first embodiment of the present invention is in a normal bed mode.

FIG. 4 is a perspective view showing a state where the sofa / bed according to the first embodiment of the present invention is in a bed mode in which the floor area is expanded.

FIG. 5 is a front view for explaining the displacement of the movable backrest half of the sofa / bed according to the first embodiment of the present invention.

FIG. 6 is a side view for explaining the displacement of the movable back half of the sofa / bed according to the first embodiment of the present invention.

FIG. 7 is a plan view for explaining the displacement of the movable backrest half of the sofa / bed according to the first embodiment of the present invention.

FIG. 8 is an enlarged perspective view showing a pivotally supporting portion of the support body of the sofa / bed according to the first embodiment of the present invention.

FIG. 9 is an enlarged perspective view showing the link mechanism of the sofa / bed according to the first embodiment of the present invention.

FIG. 10 is a perspective view showing a state where one movable back half of the sofa-bed according to the second embodiment of the present invention is in the normal bet position and the other movable back half is in the sofa position. Is.

FIG. 11 is a perspective view showing a state where one movable back half of the sofa / bed according to the second embodiment of the present invention is in the normal bed position and the other movable back half is in the extended bed position. It is a figure.

FIG. 12 is an enlarged plan view showing a reclining device for a sofa / bed according to a second embodiment of the present invention.

FIG. 13 is a perspective view showing a state in which a conventional sofa / bed is used as a bed.

FIG. 14 is a perspective view of a state where the conventional sofa / bed is used as a sofa, as viewed from the back side.

FIG. 15 is an explanatory view showing another conventional sofa / bed.

FIG. 16 is an explanatory view showing still another conventional sofa / bed.

[Explanation of symbols]

 10, 10A ... Sofa bed 11 ... Floor base 20 ... Support 20A ... First arm member 20B ... Second arm member 30 ... Movable backrest half 40 ... Link mechanism 50 ... Lock mechanism 60A, 60B, 60C ... Reclining device

Claims (4)

[Claims] 1. Along the short sides that are both ends of the floor base,
There are a bed mode in which a pair of movable backrest halves are respectively positioned, and a sofa mode in which the pair of movable backrest halves are positioned so as to extend in the longitudinal direction substantially parallel to the long sides of the floor base. A convertible sofa / bed, in which the support is in an upright state extending upward from the short side portion of the floor base to establish the bed mode or the sofa mode and the short side portion to form the bed mode. More foldable to a prone state in which it falls substantially horizontally toward the outside of the floor base, supported on both end sides of the floor base, the movable back half, when the support body is in the prone state, An extended bed position where the backrest surface continues to the upper surface of the floor base that falls almost horizontally with the support body, and a normal bed position along the short side of the floor base when the support body is in the upright state, and the same support. When the body is standing Displaceably in the substantially parallel sofa position and bed base of long part, sofa bed, characterized in that linked to the support. 2. A link mechanism for connecting the movable backrest half body to the support body so as to be rotatable at least in a substantially horizontal direction when the support body is in an upright state, and the link mechanism has a movable backrest. A pair of hinge brackets, one piece of which is fixed to the rear side of the half body and the other of which is supported, and the other piece of which is rotatable, and a link arm member whose both ends are pivotally supported by the other piece of each hinge bracket. The sofa-combined bed according to claim 1, wherein the bed also comprises a sofa. 3. The support comprises a first arm member supported on both end sides of a floor base so that an angle can be adjusted at least between the upright state and the flat lying state via a reclining device, A second arm member is also connected to the tip of the arm member via a reclining device so that the angle can be adjusted, and the tip of the second arm member is further connected to the back side of the movable back half by a reclining device. The sofa-combined bed according to claim 1, wherein the beds are connected so that their angles can be adjusted. 4. The lock mechanism according to claim 1, further comprising a locking mechanism for connecting the ends of the movable backrest halves facing each other when the movable backrest halves are in the sofa position. Bed that doubles as a sofa.