JPH07118Y2 - Foldable sofa and bed device - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention relates to a folding sofa / bed apparatus in which a sofa and a bed are interchangeable.

(Prior Art) There are various types of sofa / bed devices that can convert a sofa and a bed into each other, such as that disclosed in Japanese Examined Patent Publication No. 45-35453. The sofa / bed apparatus disclosed in this publication has a base body. The base has a box shape, and a back plate that forms a backrest is erected on the rear end side, and the inside is formed in a housing portion that is open to the upper surface side of the base. A foldable frame structure in which a plurality of frames is rotatably connected is provided in the housing portion so that the frame at one end side thereof is pivotally attached to the base body and can be put in and taken out. A foldable mattress is placed on the upper surface of the frame as in the case of the frame.

In the state where the frame structure is folded and accommodated in the accommodating portion, a cushion body can be placed on the upper surface of the folded frame structure to be used as a sofa. In addition, if the frame structure is taken out of the accommodating portion and deployed in front of the base body, it can be used as a bed.

By the way, in order to make the above-mentioned frame structure capable of being put in and taken out from the accommodating part, the frame structure having the folded upper surface opening of the accommodating part must be of a size which can be freely put in and taken out. I won't. However, if the upper surface opening of the accommodating portion is made sufficiently large, when the frame structure is unfolded in front of the base body and used as a bed, the end of the frame on one end side of the frame structure and the lower end of the back plate are used. It is unavoidable that there is a gap between and. Therefore, when it is used as a bed, the pillow placed on one end of the frame may enter the gap between the back plate and the frame and fall into the accommodation part. The appearance as a bed was sometimes impaired.

(Problems to be solved by the invention) As described above, in the sofa / bed apparatus having a structure in which the foldable frame structure is put in and out of the housing portion of the base body, when the frame structure is unfolded and used as a bed. In some cases, a gap is unavoidable between one end of the frame and the lower end of the back plate.

The present invention was made in view of the above circumstances, and its purpose is to provide a space between one end side of the frame and the lower end of the back plate when the frame structure is unfolded and used as a bed. It is an object of the present invention to provide a folding sofa / bed device capable of closing the gap generated in the.

[Structure of the Invention] (Means and Actions for Solving the Problems) In order to solve the above problems, the present invention has a base body whose inside is formed in a housing portion, and a spine standing upright on the rear end side of the base body. A plate, a back cushion body provided at a portion other than the lower end portion of the back plate, and a plurality of frames are sequentially rotatably connected, and a frame on one end side is pivotally attached to the base body. A frame structure that can be converted into a sofa state that is folded and accommodated in the accommodating portion and a bed state that is expanded in front of the base body, and the frame that is swingably attached by a hinge mechanism at a lower end portion of the back plate. When the structure is unfolded in a bed, it is generated between the lower end of the back plate and the end of the frame at one end of the frame structure by swinging in a direction away from the state of being joined to the back plate. Gap Comprising an auxiliary cushion body for closing.

With such a configuration, when the bed is used as a bed, the gap between the lower end of the back plate and the end of the frame can be closed by the auxiliary cushion body.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.
The sofa / bed apparatus shown in FIGS. 3 and 4 includes a base 1. The base 1 is formed in a housing 2 having a hollow inside, and the housing 2 is open at the upper surface and the lower surface of the base 1. Armrest plates 3 are provided on both sides of the base body 1, and a backrest portion 4 is formed on the rear end side. The backrest 4 has an upper plate 6 which is horizontally provided by joining a rear end side of the back plate 5 of the base body 1 in the width direction and an upper end of the upper plate 6 is joined to the front end side in the width direction. It is formed of a back plate 7 provided. The back plate 7 is inclined such that the lower end thereof projects more toward the front side of the base 1 than the upper end thereof. Further, a back cushion body 8 is provided on a portion of the back plate 7 excluding the lower end portion on the front surface, and an auxiliary cushion body 9 is provided on the lower end portion of the back plate 7.

As shown in FIG. 1, the auxiliary cushion body 9 is formed by joining an elastic material 12 onto a base plate 11 and covering the elastic material 12 with an exterior material 13. The auxiliary cushion body 9 is swingably provided by connecting both end portions in the width direction to the lower end portion of the back plate 7 by a hinge mechanism 14 (only one is shown). As shown in FIG. 2, the hinge mechanism 14 has a first bracket 15 and a second bracket 16 having an L-shaped cross section. A plurality of mounting holes 17 are formed on one side 15a, 16a of the first bracket 15 and the second bracket 16, respectively, and both ends of the first link 18 are formed on one side of the other side 15b, 16b. Both ends of the second link 19 are also pivotally attached to the other side surface with their positions displaced from the ends of the first link 18.

One side 15a of the first bracket 15 is attached and fixed to the back plate 7, and one side 16a of the second bracket 16 is attached and fixed to the base plate 11 of the auxiliary cushion body 9. As a result, the auxiliary cushion body 9 can be swung between a position joined to the front surface of the lower end portion of the back plate 11 shown by the solid line in FIG. 1 and a position projecting forward shown by the chain line. ing.

In the accommodating portion 2 of the base body 1, a foldable frame structure 21 is accommodated as shown in FIG. This frame structure 21 is a base 1 as shown in FIG.
It can be deployed in front of. The frame structure 21 and its mounting structure will be described in detail. A mounting bracket 22 is provided below the inner surface of the armrest plate 3 of the base 1. This mounting bracket 22
The lower end of the vertical bracket 23 is attached and fixed to the rear end. One end of a substantially J-shaped support arm 24 is pivotally attached to the upper end of the vertical bracket 23 via a link 24a and a lever 24b. One end of a first frame 25 is pivotally attached to the other end of the support arm 24. This first frame
A second frame 26, a third frame 27, and a fourth frame 28 are pivotally attached to the other end of 25 so as to be sequentially foldable. The length of the first frame 25 and the third frame 27 is set to be sufficiently shorter than that of the second and fourth frames 26 and 28. As a result, the first to fourth frames 25 to 28 are expanded from the expanded state shown in FIG. 3 to the second frame 26 and the fourth frame 28 shown in FIG. 4 at both ends of the third frame 27. The first frame 25 can be folded into a state in which it is bent substantially at a right angle and is parallel to and opposed to one another, and the first frame 25 is bent at a substantially right angle on one end side of the second frame 26.

A mattress 29 is provided on the first to fourth frames 25 to 28.
Is placed. The length of the mattress 29 is set to be shorter than the total length of the first to fourth frames 25 to 28 which are deployed, and in the bed state in which the mattress 29 is deployed as shown in FIG. One end side and fourth frame
Space portions 31a and 31b are formed on the upper surface of the other end side of 28, respectively.

One end of the first frame 25 is pivotally attached to the other end of the substantially J-shaped support arm 24. Therefore, when the support arm 24 rotates about one end as a fulcrum, the development shown in FIG. 3 is performed. From the state, the backrest portion 4 of the housing portion 2 of the base body 1 shown in FIG.
Can be accommodated in a state of entering below. In this housed state, the sofa cushion body 32 is placed on the fourth frame 28, the cushion body 32 is seated, and the backrest portion 4 is leaned against, so that the sofa can be used as a sofa.

It should be noted that projections 25a and 28a are provided on the upper end portions of the first frame 25 and the fourth frame 28, respectively. When the frame structure 21 is folded, the protrusions 25a and 28a come into contact with the end portions of the mattress 29 to prevent the mattress 29 from being displaced.

Upper ends of a first leg member 33 and a second leg member 34 are pivotally attached to the other end of the third frame 27 and the other end of the fourth frame 28, respectively. These leg members 33, 34 are interlocked with the expansion of the frame structure 21 via a plurality of links 30a and levers 30b, and when they are expanded, they are erected substantially vertically and almost the first to fourth frames 25 to 28 are almost erected. It is designed to be supported horizontally. A gap 32 is formed between one end of the first frame 25 and the lower end of the back plate 7 when the first to fourth frames 25 to 28 are horizontally deployed. That is, the upper surface opening of the housing 2 regulated by the lower end of the back plate 7 and the upper end of the front plate 1a of the base 1 so that the frame structure 21 can be easily put in and taken out of the housing 2 of the base 1. The front-back dimension of is set. As a result, in the bed state in which the frame structure 21 is deployed, the gap 32 is formed between the end of the first frame 25 and the lower end of the back plate 7 as described above.

When the frame structure 21 is deployed in front of the base body 1 and used as a bed, the auxiliary cushion body 9 joined to the lower end of the back plate 7 is separated from the back plate 7 as shown by the chain line in FIG. Rock to. That is, when the pair of links 18 and 19 are rotated around the first bracket 15 as a fulcrum, the lower end portion of the auxiliary cushion body 9 is a space portion formed on the upper surface of the frame structure 21 on one end side of the first frame 25. Since it can be hung on 31a, the gap 32 formed between the lower end of the back plate 7 and the one end of the first frame 25 is closed.

Therefore, when the user lies on the mattress 29,
Even if the pillow 35 is placed on one end side of the upper surface of the mattress 29 as shown by the chain line in FIG. 1, the pillow 35 is prevented from being caught in the gap 32 or falling from the gap 32 into the accommodation section 2. It
Moreover, since the gap 32 is closed by the auxiliary cushion body 9, the appearance as a bed is improved.

[Advantage of the Invention] As described above, according to the present invention, when the frame structure is deployed in front of the base and used as a bed, the lower end of the back plate standing on the base and the end of the frame are A gap formed between the back plates can be closed by an auxiliary cushion body swingably provided at the lower end portion of the back plate.

Therefore, when it is used as a bed, the pillow does not get caught in the gap or falls into the base body from the gap, so that it can be used well as a bed, and the appearance can be improved. Have.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a sectional view of an auxiliary cushion body in a mounted state, FIG. 2 is a perspective view of a hinge mechanism, and FIG. 3 is a side sectional view of a frame structure in a bed state. FIGS. 4A and 4B are side sectional views of the sofa in which the frame structure is housed in the base body. 1 ... Substrate, 2 ... Container, 7 ... Back plate, 8 ... Back cushion body, 9 ... Auxiliary cushion body, 14 ... Hinge mechanism, 21 ... Frame structure, 25-28 ... 1st to 4th frames.

Claims (1)

[Scope of utility model registration request] 1. A base body having an interior formed in an accommodating portion, a back plate erected on a rear end side of the base body, and a back cushion body provided at a portion excluding a lower end portion of the back plate, The frames are sequentially rotatably connected to each other, and the frame on one end side is pivotally attached to the base body. The sofa state is folded and accommodated in the accommodating portion, and the bed state is developed in front of the base body. And a frame structure that can be converted into and out of the back plate, and a swing mechanism is attached to the lower end of the back plate by a hinge mechanism so that the frame structure is expanded and shaken away from the state of being joined to the back plate. A foldable sofa / combined bed, comprising an auxiliary cushion body for closing a gap generated between the lower end of the back plate and the end of the frame on one end side of the frame structure by moving the same. De devices.