JPH09238778A - Bed served also as sofa - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust an armrest position by performing connection turnably to a bed position where the entire second supporting body is overlapped on a first supporting body and a backrest position extended in the longitudinal direction of a floor base. SOLUTION: The first supporting body 21 is connected and supported turnably to the bed position where the whole is along a short side edge 12a and the armrest position where the other end side 21b is obliquely pushed out near the center of a bed from the back side of both end parts 12 of the floor base 11. The second supporting body 31 is turned to the bed position where the whole is overlapped on the upper part when the first supporting body 21 is present at the bed position. Also, it is connected and supported turnably to the backrest position where the other end side 31b of the second supporting body 31 is extended towards the center of the bed parallelly to a bed longitudinal direction over the other end side 21b when the first supporting body 21 is present at the armrest position. The respective supporting bodies 21 and 31 are separately and independently displaced to optimum positions respectively as an armrest or a backrest. Without getting extremely closer to both end short sides of the floor base, an arm is loosely mounted without being forcedly extended on the first supporting body locked to the armrest position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sofa / bed which can be used by converting into a bed mode and a sofa mode.

[0002]

2. Description of the Related Art Conventionally, various sofa / combined beds have been commercially available, and the applicant of the present invention also discloses a sofa / combined bed disclosed in JP-A-5-237020 and a Japanese Patent Application No. 7-2.
We have proposed a completely new type of sofa / combinable bed that can be converted into a bed mode and a sofa mode, such as a sofa / combined bed filed by No. 28169.

In these sofa / combined beds, as shown in FIGS. 11 and 12, basically, headboards 2 or footboards 3 are erected on short sides of both ends of a floor base 1, respectively. 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. 11, the movable backrest halves 4 and 5 are connected to the boards 2 and 3, respectively.
The floor base 1 is locked at a position that does not cover the floor base 1. on the other hand,
In the sofa mode, as shown in FIG. 12, the movable backrest halves 4 and 5 may be moved to a position substantially parallel to the longitudinal direction of the floor base 1 and locked.

[0005]

The above-described sofa / combination bed is excellent in that the conversion operation between the bed mode and the sofa mode is easy, but it is necessary to move each pair of movable backrest halves 4, 4. Sofa with the movable backrest halves 4 and 5 serving as a backrest.
In the mode, the boards 2 and 3 on both short sides of the floor base 1 directly serve as armrests. On the other hand, there has been a demand for further improvements in design innovation and usability.

That is, first of all, in terms of design, with a simple structure without increasing the cost more than the conventional products, the design between each mode is more novel and rich in change so that it can be enjoyed enough as an interior to look good. From the viewpoint of product enrichment, the emergence of a new sofa / bed with a new design was desired.

In terms of usability, especially sofas
In the mode, if the seated person can sit comfortably on the floor base 1 at both ends without being extremely close to the short sides of the floor base, and move the armrest to a position where the armrest can be comfortably placed without forcibly extending the arm, the sitting comfort is further enhanced. In view of the fact that it will be improved, the applicant has made earnest studies on improvements for further improving usability.

The present invention has been made by paying attention to the points to be further improved on the premise of the above-mentioned prior art. Even though the structure is simple, a change in design for each mode is novel. It is very interesting and can enhance the interior effect. Moreover, the position of the armrest can be adjusted especially in the sofa mode to further improve the sitting comfort and to provide a sofa / bed with extremely high commercial value. It is an object.

[0009]

The gist of the present invention to achieve the above-mentioned object lies in the following items. In a sofa / bed (10 / 10A) that can be used by converting to one-bed mode and sofa mode, the front pivots (20) are set up on the front side of both ends (12) of the floor base (11). One end side of each of the pair of first supports (21/25) is attached to each front side pivot (20), and the entire first support (21/25) is provided with the short side edges (12) of the both ends (12). 12a) rotatably connected to a bed position along the upper side and an armrest position where the other end side of the first support body (21/25) obliquely protrudes toward the bed center from the back side of the both end portions (12). Both ends (12) of the floor base (11)
Rear side pivots (30) are also erected on the rear sides of the respective rear side pivots (30), and one end side of each of the pair of second supports (31/35) is connected to each rear side pivot (30) by the first support (21 / 25) above the second support (31/35) when it is in the bed position
The bed position where the whole is overlapped with the first support (21
/ 25) is in the armrest position, straddling the other end side,
A sofa characterized in that at least the other end of the second support (31/35) is rotatably connected to a backrest position extending toward the center of the bed in parallel with the longitudinal direction of the floor base (11). Combined bed (10 / 10A).

2. The first support body (21) is formed in a curved arc shape so that the central portion thereof bulges outward from the short side edge (12a) when in the bed position, The support (31) is also formed in a curved arc shape so that the center portion thereof bulges outward from the short side edge (12a) when the support (31) is also in the bed position. Sofa bed (10).

3 When the first support body (25) is in the bed position, the first support (25) has a shorter edge (1) than the upper end side of the front pivot (20).
2a) is formed in a straight line shape extending straight along the above,
When the support (35) is also in the bed position, the crankshaft (30A) extending at a right angle from the upper end of the rear pivot (30) toward the rear side corner of the short edge (12a). The sofa-combination bed (10A) according to claim 1, wherein the sofa-bed (10A) is formed in a straight shape that extends straight along the shorter side edge (12a) from the turning end.

Next, the operation based on the above-mentioned solution will be described. Sofa bed (10 / 10A) according to item 1
According to US Pat. No. 6,242,242, the bed position along the short edge (12a) of the floor base (11) with the first support (21/25) connected to the front pivot (20) is used for bed mode. Locking the second support (31/35) connected to the rear pivot (30) to the bed position overlapping the first support (21/25) in the bed position. Good.

When all the supports (21, 31/25, 35) are in the bed position, they do not obstruct the floor base (11) without covering them. Also, when reading with the upper body raised on the bed, the short edge (12) of the floor base (11)
a) Each of the supports (21, 31) that are vertically stacked on top of each other
/ 25,35) can be leaned against as a headboard, which has a practical effect.

Sofa bed (10 / 10A)
To convert from bed mode to sofa mode,
The pair of first support members (21/25) are arranged with the first support member (21/25) centered on the front side pivot shaft (20) to which one end side is connected.
/ 25) may be locked by rotating the other end side of the floor base (11) from the rear side of both ends (12) of the floor base (11) to an armrest position that is slanted toward the center of the bed. Of course, if there is no problem in use, the first support (21/25) may be used as an armrest while being locked in the bed position.

Then, a pair of second supports (31/35)
Centering on the rear side pivot (30) to which one end side is connected, straddling the first support body (21/25) at the armrest position and facing the bed center parallel to the longitudinal direction of the floor base (11). It may be locked by rotating it up to a backrest position.
In such a sofa mode, there is a pair of the supports (21, 31/25, 3) supported by a simple structure.
Since 5) are separately pivotally displaced to the optimum positions as armrests or backrests respectively, the design changes are novel and interesting.

Further, the seated person does not approach the short sides of the floor base (11) extremely far, and keeps his or her arm on the first support (21/25) locked in the armrest position in a relaxed sitting position. You can easily put it on without stretching it. Further, in general, the latter is higher at a position suitable for armrests and a position at the center of gravity of the backrest, but each of the support members (21, 31/25, 3)
5) can be rotated to different height positions suitable for each application.

According to the sofa / bed (10) described in 2, when each of the supports (21, 31) is in the bed position, the central portion thereof bulges outward from the short side edge (12a). Since it is formed in a curved arc shape like
A bed that combines sofas with a novel design (10)
The interior effect of itself can be enhanced. Also,
Since the central portion of each support (21, 31) bulges outward, it does not overlap with both ends (12) of the floor base (11) and eliminates a dead space along the short side edge (12a). Therefore, a larger floor area can be secured.

Furthermore, according to the sofa / bed (10A) described in 3, the first support (25) is formed in a linear shape extending straightly from the upper end of the front pivot (20).
The second support body (35) is formed in a straight line shape extending straightly from the rotation end of the crankshaft (30A) extending at a right angle from the upper end of the rear side pivot shaft (30), so that the second support body (35) is generally simple and tired. The design will not come.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show a first embodiment of a sofa / bed according to the present invention. FIG.
As shown in FIG.
And the front side pivots 20 and 20 erected on the front side of the both ends 12 and 12 of the floor base 11, the pair of first support bodies 21 and 21 connected to the upper ends thereof, and the backs of both ends 12. The rear pivots 30 and 30 are provided upright on the respective sides, and the pair of second supports 31 and 31 are connected to the upper ends thereof.

The floor base 11 is a plate-shaped member formed into a general bed size, and has a strength sufficient to withstand a load such as the weight of a person. A mattress 12 is laid in advance on the upper surface of the floor base 11. The front-side pivot 20 is made of a pipe material, and is erected at a position slightly closer to the center of the bed than the corners on the front side of both ends 12 of the floor base 11 so as to extend straight in the vertical direction. The lower end of the front pivot 20 forms a leg that supports the floor base 11 together with the lower end of a rear pivot 30, which will be described later. A side table 24 is rotatably provided in the upper end of the one front pivot 20.

One end 21a of the first support 21 is connected to and supported by the upper end of the front pivot 20 so as to be rotatable in a substantially horizontal direction. More specifically, the first support body 21 has a bed position where the whole is along the short side edge 12a as shown on the right side in FIG. 1, and the other end side 21b is on the floor as shown on the left side in FIG. It is rotatably connected to and supported by the armrest position, which is diagonally protruding from the rear side of both ends 12 of the base 11 toward the center of the bed.

The first support 21 is formed in a curved arc shape so that the central portion thereof bulges outward from the short side edge 12a when in the bed position. Specifically,
The first support 21 is formed by mounting a cushion pad 23 having a circular cross section on a frame 22 that is connected to an upper end of the front pivot 20 and extends in a curved arc shape so as to cover the entire circumference thereof.
The configuration is extremely simple.

A simple locking mechanism for locking the first support body 21 at the bed position and the armrest position is provided at the connecting point between the upper end of the front pivot 20 and the frame 22. That is, as shown in FIG. 5, at the upper edge of the front pivot 20,
Two notch grooves 20a and 20b are formed side by side at a predetermined circular pitch, while the lower end of the frame 22 is provided with the front pivot 20
A shaft core portion 22a is formed at the upper end of the shaft core portion 22a, and a locking projection 22b that selectively fits into the cutout grooves 20a and 20b is provided at the base end side step of the shaft core portion 22a.

The engaging projection 22b shown in FIG.
The first support 2 is fitted to either a or 20b.
No. 1 is locked at the bed position, and it is set so as to be locked at the armrest position when the locking projection 22b is fitted into either of the cutout grooves 20a, 20b. Such a simple lock mechanism has strength enough to bear the weight of a person's elbow.

The rear-side pivot 30 is made of a pipe material like the front-side pivot 20 and extends straight in the vertical direction at a position slightly closer to the center of the bed than the corners behind the both ends 12 of the floor base 11. It is erected. The second support 31 is connected to and supported by the upper end of the rear pivot 30 so as to be rotatable in a substantially horizontal direction at a position higher than the first support 21.

Specifically, as shown on the right side in FIG. 1, the second supporting member 31 has a bed position where the first supporting member 21 is entirely overlaid when the first supporting member 21 is in the bed position.
As shown on the left side in FIG. 1, when the first support body 21 is in the armrest position, it straddles the other end side 21b and the other end side 31b of the second support body 31 is parallel to the bed longitudinal direction. It is rotatably connected to and supported by a backrest position that extends toward.

Similarly to the first support body 21, the second support body 31 has a short side edge 1 at the center thereof when in the bed position.
It is formed in a curved arc shape so as to bulge outward from 2a. In detail, the second support body 31 is connected to the upper end of the rear side pivot shaft 30 and extends straight upward, and is bent in a substantially horizontal direction at a height position beyond the first support body 21 to form an arc shape. A cushion pad 33 having a circular cross section is attached to a curved and extended frame 32 so as to cover the entire circumference of the arc-shaped portion.

A simple locking mechanism for locking the second support 31 at the bed position and the backrest position is provided at the connecting point between the upper end of the rear pivot 30 and the frame 32. That is, as shown in FIG. 6, at the upper edge of the rear pivot 30,
A continuous cutout 30a is formed at a predetermined circular pitch, while a shaft core portion 32a which is fitted inside the upper end of the rear side pivot shaft 30 is formed at the lower end of the frame 32.
A locking projection 32b slidably fitted in the notch 30 is provided on the base end side of the a.

The notch 30a is formed in the engaging projection 32b shown in FIG.
The second support body 31 is locked at the bed position by bringing it into contact with either one of the both end surfaces 30b and 30c of the locking projection 32.
The second support 31 is set so as to be locked at the armrest position when b is brought into contact with either of the opposite end surfaces 30b and 30c of the cutout 30a. Such a simple lock mechanism has strength enough to withstand the weight of a person leaning on it.

The above sofa / combined bed 10 is in the bed mode when the pair of first supports 21 and 21 and the pair of second supports 31 and 31 are locked at the bed positions, respectively. When the supports 21 and 21 are locked at the armrest position and the pair of second supports 31 and 31 are locked at the backrest position, the sofa mode is set.

Next, the operation based on the first embodiment will be described. According to the sofa / bed 10 according to the present embodiment, when the bed mode is used, the pair of first supports 21 and 21 are located along the upper and lower short edges 12a of the floor base 11 (see FIG. 2). 3 and the left side of FIG. 3), and the pair of second supports 31 and 31 may be locked at a bed position overlapping the first support 21 at the bed position. Each of the supports 21 and 31 can be easily fixed so as not to move by the simple locking mechanism shown in FIGS.

When both the supports 21 and 31 are locked in the bed position in this way, the supports 21 and 31 are fixed to the floor base 1.
1 It does not get in the way without covering the top. In particular, in the present embodiment, since each of the supports 21 and 31 has an arc shape that bulges outward from the short side edge 12a, it is not only a novel design but also each support at the bed position. 21,
Since the central portion of 31 bulges outward, it does not have to overlap on both ends 12 of the floor base 11 so much.

That is, due to the shape of each of the supports 21 and 31, the dead space along the short side edge 12a can be eliminated as much as possible, and a wider floor area can be secured. In addition, for example, when reading with the upper body raised on the bed, as shown on the right side in FIG.
Supports 2 which are vertically stacked on the short side edge 12a of the
1, 31 can also be used as a leaning headboard, which has a practical use effect.

The sofa / bed 10 is used as the bed
In order to convert from the mode to the sofa mode, the pair of first supports 21 and 21 are arranged such that the other end side 21b of each first support body 21 is centered around the front side pivot shaft 20 to which the one end sides 21a are connected. An armrest position that diagonally extends from the rear side of both ends 12 of the floor base 11 toward the center of the bed (see the right side of FIG. 2).
It may be locked by rotating it up to a substantially horizontal direction.

When rotating each first support 21, first, the locking projection 22b on the side of the first support 21 is formed into the cutout groove 20a of the front pivot 20 which is fitted in the bed mode. The first support body 21 is slightly lifted upward so as to be removed from either one of 20b. At this time, it is advisable to shift the position of the second support 31 so that it does not overlap the first support 21.

Subsequently, the first support body 21 is rotated to the armrest position by a predetermined angle toward the center of the bed, and the locking projection 22b.
Should be engaged again with the other of the cutout grooves 20a, 20b. Of course, if there is no problem in use, one or both of the pair of first supports 21 and 21 may be used as an armrest while being locked in the bed position.

Further, the pair of second supports 31, 31
The other end 2 of the first support body 21 in the armrest position with the rear side pivot 30 to which one end side 31a thereof is connected as the center.
The other end side 31b of the second support 31 is rotated over 1b to a backrest position extending in parallel to the bed longitudinal direction toward the center of the bed. When rotating the second support 31,
The other end 31b of the second support 31 may simply be pushed toward the center of the bed.

When the second support 31 is pushed from the bed position to the backrest position, the locking projection 32 on the second support 31 side is pushed.
b slides in the notch 30a at the upper end of the rear pivot 30 as it is, and abuts on either one of both end faces 30b and 30c preset for backrest positioning in the notch 30a. Then, the second support body 31 is locked in a state in which the second support body 31 does not rotate even if the seated person puts his / her weight on the backrest position even if the second support body 31 is pushed further toward the bed rear side.

As described above, in the sofa mode, the pair of first supports 21 and 21 are locked in the armrest position, and separately, the pair of second supports 31 and 31 are also locked in the backrest position. Therefore, since the supports 21 and 31 are independently displaced to the optimum positions as armrests or backrests respectively, the change in design is novel and interesting. FIG.
As shown in Fig. 2, each support body 2 is provided on each side of the bed.
It is also possible to hold one side of 1, 31 while keeping it in the bed position and rotate the other side to an armrest position or a backrest position for locking.

Sofa. In the mode, the seated person can comfortably place the arm on the first support body 21 locked in the armrest position in a relaxed sitting position without excessively approaching the short sides of both ends of the floor base 11 without forcibly extending the arm. it can. Further, generally, the latter is higher at a position suitable for armrests and a position at the center of gravity of the backrest, but the supports 21 and 31 are rotated and locked at different height positions suitable for their respective uses. can do.

7 to 10 show a second embodiment of the present invention. Sofa bed 1 according to the present embodiment
Basically, 0A has substantially the same overall configuration and change modes of each mode as the sofa / bed 10 according to the first embodiment, but the first support 25 and the second support 35 are specifically The shapes are different. In addition, the same reference numerals are given to the same types of parts as those in the first embodiment, and the duplicated description will be omitted.

The first support 25 is formed in a straight shape extending straight from the upper end of the front pivot 20 along the short side edge 12a when in the bed position. More specifically, the first support 25 is connected to the upper end of the front pivot 20 and extends a little further upward, and is bent in a substantially horizontal direction at a predetermined height and extends linearly in a frame 26. Cushion pad 2 having a circular cross section so as to cover the entire circumference of the portion extending to
It is equipped with 7. The support of the first support 25 by the front pivot 20, the rotation mode of the first support 25, and the simple lock mechanism are common to the first embodiment.

The second support 35, when in the bed position, is shorter than the rotating end of the crankshaft 30A extending at a right angle from the upper end side of the rear pivot 30 toward the rear corner of the short side edge 12a. It is formed in a straight line shape that extends straight along the edge 12a. More specifically, the crankshaft 30A is rotatably connected to the upper end of the rear pivot 30 and further extends straightly upward. The crankshaft 30A bends in a substantially horizontal direction at a height above the first support 25, and is linear. Extends to.

A frame 36 of the second support member 35 is integrally connected to the rotating end of the crankshaft 30A so as to bend at a right angle in a substantially horizontal direction and then extend straight. Further, the cushion pad 37 of the second support body 35 is the frame 36.
Is mounted so as to be movable in the longitudinal direction. In addition,
The second support 35 is supported by the rear pivot 30 and its rotation mode and simple lock mechanism are the same as those in the first embodiment, but the rotation angle of each mode of the second support 35 is 90 degrees. And is set to be slightly wider than that of the first embodiment.

According to this embodiment, as shown in the figure, the overall design is relatively simple and timeless. Particularly according to this embodiment, the frame 36 of the second support 35 is
On the other hand, since the cushion pad 37 is movable in the longitudinal direction, the second support 35 can be appropriately adjusted to an optimum position when it is used as a headboard or a backrest.

The sofa / bed shown in the above-mentioned various embodiments is not limited to the illustrated specific construction. For example, the simple locking mechanism that locks each support at a predetermined position may be configured by a reclining device. The reclining device is a kind of hinge in which the angle can be adjusted steplessly or in multiple steps. By using such a reclining device, each support can be freely fixed easily at various angular positions, can be appropriately adjusted to a desired form in each mode, and various variations of form change can be enjoyed.

[0047]

According to the sofa / bed according to the present invention, the first support is rotatably connected to the front pivot on both sides of the floor base so as to be rotatable between the bed position and the armrest position. Since the second support is rotatably connected to the rear side pivot on the back side to the bed position and the backrest position, the design changes for each mode with a simple configuration that does not increase the cost. It is innovative and interesting, and it can enhance the interior effect. Also, by rotating the first support to the armrest position, the seated person can extremely approach the short sides of both ends of the floor base and force the arm to extend. You can rest your arms comfortably and improve your sitting comfort.

[Brief description of drawings]

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

FIG. 2 is a plan view showing the sofa / bed according to the first embodiment of the present invention.

FIG. 3 is a front view showing the sofa / bed according to the first embodiment of the present invention.

FIG. 4 is a right side view showing the sofa-bed according to the first embodiment of the present invention (however, each support member on the back side is not shown).

FIG. 5 is an enlarged perspective view showing a simple lock mechanism of the first support member that constitutes the sofa / bed according to the first embodiment of the present invention.

FIG. 6 is an enlarged perspective view showing a simple lock mechanism of a second support member that constitutes the sofa-bed according to the first embodiment of the present invention.

FIG. 7 is a perspective view showing a sofa / bed according to a second embodiment of the present invention.

FIG. 8 is a plan view showing a sofa / bed according to a second embodiment of the present invention.

FIG. 9 is a front view showing a sofa / bed according to a second embodiment of the present invention.

FIG. 10 is a right side view showing the sofa / bed according to the second embodiment of the present invention (however, each support on the back side is not shown).

FIG. 11 is a perspective view showing a state in which a conventional sofa / bed is used as a bed.

FIG. 12 is a perspective view of a state when the conventional sofa / bed is used as a sofa, as viewed from the back side.

[Explanation of symbols]

 10, 10A ... Sofa bed 11 ... Floor base 20 ... Front axis 21, 25 ... First support 30 ... Rear axis 31, 35 ... Second support

Claims (3)

[Claims] 1. A sofa-combinable bed that can be used by converting to a bed mode and a sofa mode, in which front pivots are erected on the front sides of both ends of the floor base, respectively.
A bed position where one end side of each of the pair of first support bodies is provided on each front pivot, the entire first support body is located above the short side edges of the both end portions, and the other end side of the first support body is behind the both end portions. Rotatably connected to an armrest position that diagonally protrudes from the side toward the center of the bed, and rear pivots are erected on the rear sides of both ends of the floor base, and a pair of rear pivots are provided on each rear pivot. One end side of each of the second supports is a bed position where the entire second support overlaps when the first support is in the bed position, and the other end when the first support is in the armrest position. Second across the side
At least the other end of the support is rotatably connected to a backrest position that extends toward the center of the bed in parallel with the longitudinal direction of the floor base, and a sofa / bed. 2. The first support is formed in an arc shape so that the central portion thereof bulges outward from the short side edge when in the bed position, and the second support is the same. The sofa-combined bed according to claim 1, wherein the central portion is formed in a curved arc shape so as to bulge outward from the short side edge when in the bed position. 3. The first support is formed in a straight shape that extends straight along the short side edge from the upper end side of the front pivot when in the bed position, and the second support is also in the bed position. In one case, the straight shaft was formed straight along the short side edge of the crankshaft, which extends at a right angle from the upper end side of the rear pivot to the rear corner of the short side edge. The sofa / combined bed according to claim 1.