JPH07275082A - Sofa bed - Google Patents

Abstract

PURPOSE:To enable the use of a sofa bed in a state allowed to approach a wall by providing a first link mechanism changing over a backrest to a position erected behind a cushion part and a position allowed to horizontally fall toward the front of the cushion part and a second link mechanism moving the rear part of the cushion part up and down in cooperation with the first link mechanism. CONSTITUTION:When a sofa bed is used as a sofa by erecting a backrest 14 on an auxiliary cushion, the rear part of a cushion 17 is lowered. When the sofa bed is used as a bed, the backrest 14 is pushed forwardly to be moved. The backrest 14 is moved forwardly while the resting surface thereof revolved so as to be turned upwardly and becomes horizontal in such a state that a link 16 impinges against a support plate 12 to be prevented from further movement to be connected to the cushion part 17. In both cases used as a sofa and a bed, the cushion part 17 can be revolved upwardly centering around the fulcrum point with a link 18 and are opened and closed to enable the taking in and out of an article with respect to a housing space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sofa that also serves as a bed.

[0002]

2. Description of the Related Art In a generally known sofa of this type, as shown in FIG. 1, a backrest 1 can be tilted up and down, and when it is used as a bed, the backrest 1 is tilted backward.
When it is used as a sofa, it is set up. When used as a bed, such a sofa needs a space behind the backrest to fold down the backrest, and when the sofa is attached to the wall surface 2, put the sofa forward and place it behind the backrest. The sofa must be secured so that the backrest can be folded down, and the sofa cannot be fixed or moved along the wall surface, for example, a vehicle such as a camper cannot be installed as it is.

As a bed-use sofa, there is also known a sofa in which a backrest 3 can be moved forward by a link mechanism 4 and tilted as shown in FIG.

[0004]

With a sofa whose backrest can be moved to the front side, it is not necessary to move the sofa when it is used as a bed. Therefore, the sofa can be fixed along the wall surface and the camping guard can be fixed. It is also suitable for mounting on a vehicle such as, but it has the following problems, including the type in which the backrest falls rearward. In other words, as a sofa, it is desirable to have a slightly higher front and a lower back in order to sit comfortably so that the hips can be lowered deeply by leaning on the backrest that is slightly inclined to the back. In order to be able to use it, the cushion part of the sofa has to be horizontal.

If the rear portion of the cushion portion of the sofa can be supported in two steps, that is, the cushion portion of the sofa can be deepened or leveled by switching the supporting positions according to the use of the bed and the sofa. However, even in this case, an operation of tilting the backrest and an operation of switching the support position of the cushion portion of the sofa up and down and fixing it are necessary.

Some bed-use sofas have a space under the cushion which can be used as a storage space. However, when the backrest can be moved to the front side, when the sofa is used as a sofa. It is not possible to open and close the cushion part up and down to put items in and out of the storage space. Therefore, a hinged door is provided on the front side so that items can be put in and taken out from the front side, but it is necessary to bend over and it is more inconvenient to put items in and out than when the cushion part is opened and closed.

An object of the present invention is to solve the above problems, to move the backrest to the front side by one-touch operation, to raise the back of the cushion portion, and to open and close the cushion portion. The purpose is to provide a dual-purpose sofa.

[0008]

The sofa combined with a bed according to the present invention comprises a main body having a storage space inside, a cushion part mounted on the main body and covering the storage space, a backrest, and two units for connecting the backrest and the main body. Link of
A first link mechanism that has a first link mechanism that switches the backrest between a position raised to the rear of the cushion part and a position that is horizontally tilted to the front side of the cushion part, and a link that pivotally supports the rear part of the cushion part. And a second link mechanism for moving the rear part of the cushion part up and down in conjunction with.

According to the bed-combined sofa of the present invention, when the backrest is moved to the front side and tilted, the back portion of the cushion portion is lifted by the second link mechanism in association with the movement of the first link mechanism accompanying it. The cushion portions are arranged horizontally, and when the backrest is moved to the rear side of the cushion portion and raised, the rear portion of the cushion portion is lowered by the second link mechanism interlocking with the backrest. In addition, when used as a bed or a sofa, the cushion portion can be vertically rotated around a pivotal support portion with a rear link as a fulcrum, and can be opened and closed so that an article can be put in and taken out from the storage portion.

It is desirable to provide the main body with an auxiliary cushion which is located under the back when the back is raised. As a result, not only can the backrest be supported in a stable state, but the width of the bed when used as a bed can be widened. The sofa serving as a bed according to the present invention can be installed in various places such as homes and offices, but since it can be fixed close to the wall side, it can be installed in a space such as a vehicle such as a camper gar. It is preferable to install it in a place where there is not much room left.

[0011]

[Embodiment] Main body 1 having a storage space for articles inside
1 has a stepped upper surface, which is lowered except for a support plate 12 whose front side is in front of the central portion, and an auxiliary cushion 13 is attached or fixed to the rear portion. The backrest 14 is connected to the main body 11 by two links 15 and 16 that are bent in the shape of a claw forming the first link mechanism, and on the auxiliary cushion, a position that is slightly inclined rearward and stands up,
The support plate 12 can be switched to a horizontally tilted position with the backrest surface facing upward on the front side of the support plate 12.
Of links 5 and 16, the link 16, which pivotally supports the central portion of the backrest, is supported by the support plate 12 in a state where the backrest 14 is tilted horizontally by being bent at the central portion, while the link 15 is One end is also supported by the support plate 12 and the other end is locked and stopped by the stopper 19 (FIG. 5), and with the backrest 14 raised, both links 15 and 16 are as shown in FIG. The link 16 is bent rearward so as not to project to the front side, and the link 16 is locked to the stopper 21 of the link 15 to prevent rotation.

Following the auxiliary cushion 13, the cushion portion 17 for covering the storage space of the main body 11 has a front end with the support plate 12.
And the rear end is the pivot point 16a of the link 16.
Is connected to the projecting end by an inverted L-shaped link 18 constituting a second link mechanism, and the link 16 is connected to the pivot point 16a.
When it is rotated around, the rear part of the cushion part is lowered or lifted.

The bed-combined sofa of this embodiment is constructed as described above, and when the backrest 14 is raised on the auxiliary cushion to be used as a sofa, the rear portion of the cushion 17 is lowered as shown in FIG. When it is used as a bed, the backrest 14 is pushed and moved forward from the state shown in FIG. Then, the backrest 14 moves forward while rotating so that the back surface thereof faces upward, and the link 16 hits the support plate 12 and is further connected to the cushion portion 17 to be horizontal (Fig. 5).

Whether used as a sofa, a bed, or in any state, the cushion portion 17 can rotate upward about a pivot point with respect to the link 18, and can be stored by opening and closing. Although it is possible to move items in and out of the space, it is preferable to actually move items in and out when the backrest 14 is raised and used as a sofa, as shown in FIG. This is because it is possible to raise the cushion portion 17 more easily than the front side without the backrest becoming an obstacle or being supported by the backrest.

[0015]

The present invention is constructed as described above and has the following effects. According to the bed-use sofa of claim 1, when the backrest is raised and used as a sofa, the rear end of the cushion portion is lowered so that the person can sit down deeply, and when the sofa is used as a bed, the backrest. Move it to the front and knock it down,
As a result, the rear portion of the cushion portion is lifted and becomes horizontal, the above-mentioned switching between the sofa and the bed can be performed by a one-touch operation that merely pushes and moves the backrest, and the cushion portion that covers the storage space from above is provided by the second link mechanism. It is possible to open and close up and down around a pivot point with respect to the link, so that there is an effect that things can be taken in and out.

When the auxiliary cushion is provided as in the sofa of the second aspect of the present invention, the width of the bed can be widened and the backrest in the raised state can be supported. When it is provided in a vehicle like the sofa combined with a bed according to the third aspect, it is not necessary to put it out to the front side when using it as a bed, and therefore it can be fixed to one side inside the vehicle.

[Brief description of drawings]

FIG. 1 is a schematic view of a conventional typical sofa that also serves as a bed.

FIG. 2 is a schematic view of a conventional bed-use sofa in which a backrest is tilted forward.

FIG. 3 is a perspective view of a sofa serving as a bed according to the present invention.

FIG. 4 is a view showing a state in which it is used as a sofa.

FIG. 5 is a view showing a state in which the bed is used.

FIG. 6 is a view showing a state in which an object is taken in and out by lifting a cushion portion.

[Explanation of symbols]

11 ... Main body 12 ...
・ Support plate 13 ・ ・ ・ Auxiliary cushion 14 ・ ・
・ Backrest 15,16,18 ・ ・ ・ Link 17 ・ ・
・ Cushion

Claims (3)

[Claims] 1. A main body having a storage space inside, and a cushion part mounted on the main body and covering the storage space,
It consists of two links that connect the backrest and the backrest body, and the first link mechanism that switches the backrest between the position raised to the rear of the cushion part and the position tilted horizontally to the front of the cushion part, and the cushion part A bed-combined sofa having a link for pivotally supporting the rear part and a second link mechanism for vertically moving the rear part of the cushion part in conjunction with the first link mechanism. 2. The bed-combined sofa according to claim 1, wherein an auxiliary cushion is provided under the backrest when the sofa is used as a sofa. 3. The bed-combined sofa according to claim 1, which is installed in a vehicle.