JPH06178713A - Bed also serving as sofa - Google Patents

Abstract

PURPOSE:To provide a bed which also serves as a sofa and which is comfortable to sleep in and enables the shift of a movable sofa back to an unobstructive position when used as the bed. CONSTITUTION:An armrest 630 also serving as a sofa back is divided into a movable half body 631 and an installing half body 632, and the movable half body 631 is made movable to the first position along a headboard 16 and the second position in parallel almost with the center line extending in a lengthwise direction of a floorboard 14. A movable sofa back 620 is made movable to the first position along a footboard 18 and the second position continuing mutually in the lengthwise direction in close vicinity to the movable half body 631 of the armrest 630 also serves as the sofa back in the second position while extending in parallel almost with the center line extending in the length wise direction of the floorboard 14. In a bed mode, the movable half body 631 is held in the first position, and the movable sofa back 620 is held in the first position, on the one hand, in a sofa mode, the movable half body 631 is held in the second position, and the movable sofa back 620 is held in the second position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a floorboard, headboards and footboards provided at both ends of the floorboard, a backrest / armrest, and a movable backrest, and a bed mode and a sofa mode. A sofa / bed that can be converted to.

[0002]

2. Description of the Related Art Various sofa / combined beds have been commercially available. A typical sofa / combined bed has two halves divided in the longitudinal direction, and the sofa / combined bed is used as a sofa (sofa mode).
In this case, the bed half on the back side is raised to the front and used as a backrest.

As is well known, the problem with the above-described sofa / combination bed is that the bed portion is divided, so that when the bed is used as a bed, a step is formed in the divided portion, which hits the user's back and gives a very comfortable sleep. It means that it is bad.
In addition, the softness (or
(Stiffness) and the softness required for the backrest are different,
In the conventional sofa / bed of the type described above, the same components have to be used for both the bed and the backrest, so that it is difficult to select the softness.

In order to solve such a problem, there has been proposed a sofa / bed having a dedicated backrest (for example, SAIkai 60-187654; SAI 54-1640).
10; JP-A-2-109509). In these sofa beds, the backrest can be moved from the bed surface to another place when the backrest is not in use. The problem with this type of sofa / bed is that the backrest becomes an obstacle when the backrest is not in use. That is,
For example, in the sofa / combined bed described in Japanese Utility Model Laid-Open No. 60-187654, when not in use, the backrest lays on the floor in front of the sofa / combined bed, which impedes access to the bed.

Therefore, the applicant filed Japanese Patent Application No. 3-33564.
No.7, No. 3-359985 proposed a sofa / combinable bed that can be converted into bed mode and sofa mode. This has the excellent effect that it is comfortable to sleep and that the backrest can be placed in an unobtrusive position when the backrest is not in use. There was a desire for a device that allows the user to sit in the same posture.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to comfortably sleep in bed mode while still allowing the unused backrest to be placed in an unobtrusive position while lying in sofa mode. It is to provide a sofa / combination bed that allows you to sit in such a relaxed position.

Another object of the present invention is to provide a sofa / combination bed which can obtain a practical effect by utilizing the backrest when the backrest is not used (bed mode). Another object of the present invention is to provide a sofa / bed capable of obtaining a visual effect by utilizing the backrest when the backrest is not used.

Another object of the present invention is to provide a sofa / combination bed which can easily switch between a bed mode and a sofa mode. Another object of the present invention is to provide a sofa / combination bed which can easily switch between a bed mode and a sofa mode. Still another object of the present invention is to enable easy conversion between the bed mode and the sofa mode and to finely adjust the angle of the backrest in any of the up / down / front / back / left / right directions. Another object of the present invention is to provide a sofa / bed capable of preventing damage when an excessive load is applied to the backrest.

[0009]

In order to achieve the above object, the gist of one aspect of the present invention is to provide a floor plate (14) and headboards (16) provided at both ends of the floor plate (14) or Footboard (18), back and armrests (630), and movable backrest (620)
And a sofa-combinable bed (610, 710) capable of being converted into a bed mode and a sofa mode.
The backrest and armrest (630) is mounted along the headboard (16) (or the footboard (18)), and the backrest and armrest (63) is attached.
0) into the movable half (631) and the mounting half (632).
The movable half body (631) is divided into a first position along the headboard (16) (or the footboard (18)) and a first position substantially parallel to the center line extending in the longitudinal direction of the floor plate (14). And a movable backrest (620) at a first position along the footboard (18) (or headboard (16)) and the floorboard (1).
4) Extends substantially parallel to the centerline extending in the longitudinal direction, and is movable to a second position that is adjacent to the movable half (631) of the backrest and armrest (630) in the second position and is continuous in the longitudinal direction. In the bed mode, the movable half (631) of the backrest and armrest (630) is held in the first position, and the movable backrest (62).
0) in the first position, while in the sofa mode, the movable half (631) of the backrest and armrest (630) is held in the second position and the movable backrest (620) is held in the first position. It exists in a sofa / bed (610, 710) characterized by being held in two positions.

Another feature of the present invention is that the movable backrest (620) is movably mounted on the footboard (or headboard (16)) between a first position and a second position. Supporting mobile device (140, 2
40) The bed also serves as a sofa (610, 710) characterized by having 40). The gist of another aspect of the present invention is that the movable device (140,
240) is the movable backrest (620) in the vertical direction,
A position adjustment and damage prevention mechanism that can adjust the position in at least one of the front-rear direction and the left-right direction and can absorb the load to prevent damage when an excessive load is applied to the movable backrest (620). A sofa / bed (610, 710) characterized in that

Further, the gist of another aspect of the present invention is that, in the sofa mode, the movable half (6) of the backrest and armrest (630) held in the second position.
31) and a movable backrest (62) held in the second position.
0) and a sofa / bed (610, 7) characterized by having a connecting mechanism (650) for connecting and supporting each other.
It exists in 10).

[0012]

(Function) The sofa / bed (610, 71 of the present invention
According to 0), the back and armrests (630) and the movable backrest (620) are located substantially above the headboard (16) or the footboard (18), respectively, when in bed mode. It will be placed in, so it will not get in the way.

Moreover, in the bed mode, when the user lifts his / her upper body on the bed to read a book, he / she can lean on the backrest / armrest (630) and the movable backrest (620), which is a practical effect. Further, when the backrest / armrest (630) and the movable backrest (620) are provided with cushions, an impression as a luxurious bed can be obtained, and the visual effect can be improved.

To convert the sofa / bed (610, 710) from the bed mode to the sofa mode,
First, the movable half (63) of the backrest and armrest (630)
1) is moved from a first position along the headboard (16) (or footboard (18)) to a second position substantially parallel to the longitudinal centerline of the floorboard (14). Next, attach the movable backrest (620) to the footboard (1
8) (or headboard (16)) from a first position extending substantially parallel to a centerline extending in the longitudinal direction of the floorboard (14) and in the second position being a backrest and armrest (63).
The movable half (631) of (0) may be moved to a second position that is adjacent to the movable half (631) and is continuous in the longitudinal direction.

In such a sofa mode,
Headboard (16) (or footboard (18))
While using the mounting half (632) of the backrest and armrest (630) as it is along the back as the backrest, the movable half (6) of the backrest and armrest (630) moved to the second position.
By using 31) as an armrest, it is possible to sit on the sofa / bed (610, 710) in a relaxed posture such as a so-called couch type lying down.

On the other hand, the movable half (631) of the backrest and armrest (630) held in the second position and the movable backrest (620) similarly held in the second position may be used as they are as the backrest. . At this time, the movable half (63) of the backrest and armrest (630) held in the second position.
1) and a movable backrest (6
20) and a connecting mechanism (650) for connecting and supporting the two, the movable half (631) and the movable backrest (620) of the backrest and armrest (630) are deformed to the back side due to the weight of the seated person. Can be prevented.

A movable device (14) for supporting a movable backrest (620) on a footboard (18) (or a headboard (16)) so as to be movable between a first position and a second position.
0, 240), the mutual conversion between the bed mode and the sofa mode can be efficiently performed. Further, when the movable device (140, 240) is provided with a position adjusting and damage preventing mechanism, the position of the movable backrest (620) should be adjusted in at least one of the up-down direction, the front-back direction and the left-right direction. As a result, it is possible to appropriately eliminate the variation in accuracy after assembling the sofa / bed (610, 710), and when the movable backrest (620) is overloaded, the product itself due to the overload is applied. It is possible to prevent damage.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of the present invention will be described below with reference to the drawings. 1 to 13 show a sofa / bed 610 according to a first embodiment of the invention. As shown in FIG. 1, the sofa / bed 610 is a normal bed.
The mode can be converted to a sofa mode (see FIG. 4) in which the user can sit down like lying down.

The sofa / bed 610 has a basic structure including a floor board 14 on which a mattress 12 and the like are laid, and a headboard / armrest 16 and a footboard / armrest 18 which are respectively supported at two longitudinal ends of the floorboard 14. Formed (depending on the direction in which the user sleeps,
The head of the user comes to the armrest 18 that also serves as a footboard,
(It may be an armrest that doubles as a bedboard).

Further, the sofa / bed 610 is provided with a backrest / armrest 630 mounted on the headboard / armrest 16 side and a movable backrest 620 mounted on the footboard / armrest 18 side. The movable backrest 620 and the backrest / armrest 630 are each configured by mounting a cushion portion 626 including a cushion and a skin on the backrest surface side of the substrate 624.

The backrest and armrest 630 is a movable half 63.
1 and the mounting half 632.
31 is the first along the upper side of the armrest 16 that also serves as the headboard.
A position (see FIG. 1) and a second position (see FIG. 2) that is substantially parallel to the center line extending in the longitudinal direction of the floor plate 14 are movable through a rotating device 670 shown in FIG. Is connected to one end side of. On the other hand, the mounting half 63
2 is connected to the other end of the headboard / armrest 16 via a tilting mechanism 640 so that the tilting angle can be adjusted with respect to the upper end of the headboard / armrest 16.

As shown in FIG. 1, the tilting mechanism 640 includes a support arm 641 rotatably supported by a side end surface of the headboard / armrest 16 via a pivot 642, and a support arm 641 at the tip end side. It is composed of a locking pin 644 which is planted on the side end surface of the mounting half body 632 so as to fit into the locking hole 643 provided. This tilting mechanism 640 is provided with a board 624 of the mounting half 632 as shown by an arrow D in FIG.
Is in contact with the inner wall surface of the armrest 16 that also serves as the headboard (shown by the solid line in FIG. 5), the mounting half 632 moves from the hinge 6 to the hinge 6.
This is a mechanism for holding 45 (shown in FIG. 6) in a state of being tilted upward (shown by an imaginary line in FIG. 5) about the center of rotation.

Further, as shown in FIGS. 6 and 7, the turning device 670 for movably supporting the movable half 631 in the first position (see FIG. 1) and the second position (see FIG. 2) is as follows. Mounting recess 16 provided in the center of the armrest 16 that also serves as a headboard
A first link piece 671 fixed to a and a second link piece 672 rotatably connected to the first link piece 671.
And a third link piece 673 that is also rotatably connected to the second link piece 672. The mounting recess 1
As shown in FIG. 7, the side edge of 6a that bites into an acute angle holds the second link piece 672 against the first link piece 671 so that the second link piece 672 cannot rotate beyond a predetermined angle.
Is configured as.

The third link piece 673 is fixed to one end side of the base plate 624 on the back surface side of the movable half 631 by a mounting screw 674 and an adjusting nut 675. More specifically, as shown in FIG. 9, the mounting screw 674 is inserted from the inside of the third link piece 673 into the lower hole 624 a formed in the base plate 624 and the third link piece 673.
It is inserted into the locking hole 673a formed in the hole and is screwed into the adjustment nut 675. As a result, by loosening the adjusting nut 675, the movable half 631 is supported so that the angle can be adjusted around the mounting screw 674, as shown by the arrow F in FIG. In addition, when an excessive load is applied to the movable half 631 between the third link piece 673 and the adjusting nut 675, a coil spring 676 that appropriately absorbs the overload and prevents product damage. Is installed.

As shown in FIGS. 10 to 13, the movable backrest 620 has a first position (see FIG. 1) and a second position (see FIG. 4).
), And is supported by the armrest 18 that also serves as a footboard via a movable device 140. The movable device 140 can slightly adjust the position of the movable backrest 620 supported at each position (particularly the second position) in the up-down direction and the front-rear direction, and when an excessive load is applied to the movable backrest 620, It is equipped with a position adjustment and damage prevention mechanism that can absorb the load to prevent damage.

More specifically, as shown in FIGS. 10 and 11, the movable device 140 includes the hinge bracket 14
Two metal arms 142 and 143 that are rotatably connected to each other in a horizontal plane are provided. The hinge bracket 141 also serves as a stopper that holds one arm 142 against the other arm 143 so that it cannot rotate more than a predetermined angle, as shown in FIG.

As shown in FIG. 11, the other arm 143
One end of is connected to a movable shaft 151 provided inside a housing 150 assembled on the upper side of the headboard / armrest 16 so as to be horizontally rotatable. Further, one end of one arm 142 is rotatably connected to a shaft 145 provided on the mounting bracket 144.

As shown in FIG. 12, the movable shaft 151
Is pivotally supported at the lower end by a pivot 152 fixed to the bottom of the housing 150 so that the upper end swings in parallel with the longitudinal direction of the bed. Further, a long hole 151a is formed in the upper end of the movable shaft 151, and a guide rod 153 fixed to the side wall of the housing 150 is inserted into the long hole 151a. Coil springs 154 and 154 are interposed at both ends of the guide rod 153 so as to sandwich the upper end of the movable shaft 151 therebetween.

On one end side of the guide rod 153,
An adjusting nut 155 for adjusting the angle of the arm 143 through the elastic force of the coil spring 154 is rotatably screwed. The coil springs 154 and 154 also play a role of absorbing a load when the movable backrest 620 is excessively loaded so as to prevent the damage. 11 and 1
As shown in FIG. 2, on one end side of the arm 143, when the movable backrest 620 is in the second position (see FIG. 4), the screw-type stopper 15 that abuts the side wall of the housing 150.
6 is provided. The stopper 156 is rotated by a screwdriver to appropriately adjust the degree of protrusion on the tip end side thereof, so that the arms 142, 143 extending in a straight line around the movable shaft 151 have their respective final positions of horizontal rotation. For adjusting the back-and-forth position of the movable backrest 620 moved to the second position. Further, as shown in FIG. 11, a leaf spring 158 is attached to the bottom of the housing 150. The leaf spring 158 is a member for holding the movable backrest 620 (see FIG. 1) stored in the first position in the first position.

As described above, the movable shaft 151, the pivot 152, and the guide rod 15 that support the arm 143, that is, the movable backrest 620 so that the angle can be adjusted in the vertical and longitudinal directions.
3, a coil spring 154, an adjusting nut 155, a stopper 156, and a rail unit 660, which will be described later, that supports the movable backrest 620 so that the movable backrest 620 can be positionally adjusted in the left-right direction. This position adjustment and damage prevention mechanism is provided in the housing 150.
It is pre-installed in and forms one unit.

As shown in FIGS. 10 and 13, a mounting bracket 144 rotatably connected to one end of one arm 142 by a shaft 145 is screwed to an external fitting rail 662 which constitutes a rail unit 660. ing. This rail unit 660 is for moving the movable backrest 620 moved to the position shown in FIG. 3 further in the direction of arrow C in FIG. 4 to move it to the second position close to the movable half 631. The rail unit 660 is also movable along with the arms 142 and 143.
It is a member that constitutes 0. As shown in FIG. 4, when the movable backrest 620 is in the second position, the shaft 145 on the side of the base plate 624 is disposed so as to be located inside the side end of the movable backrest 620.

More specifically, the rail unit 660 is an inner fitting rail 661 fixed to the base plate 624 of the movable backrest 620 so as to extend in the left-right direction, and the inner fitting rail 660.
The outer fitting rail 662 is slidably fitted in the right and left direction 61. As shown in FIGS. 10 and 13, the inner fitting rail 661 has a convex cross section that fits into the dovetail groove of the outer fitting rail 662.

Also, as shown in FIG. 4, the movable backrest 6
On one end face of 20, the movable backrest 620 in the second position
In the same manner as above, a cannula 652 that constitutes a connecting mechanism 650 that connects and supports the movable half body 631 in the second position is provided so as to be able to project to the left and right. On the other hand, the movable half 631
The engaging hole 6 into which the hook 652 is fitted is formed on one end surface of the
51 is provided. Kannuki 65 of connection mechanism 650
2 and the engagement hole 651, the movable backrest 6 in the second position.
This is to prevent the 20 and the movable half 631 from being deformed to the back side.

Next, the operation of the sofa / bed 610 according to the first embodiment of the present invention will be described. According to the sofa / bed 610 of the present invention, as shown in FIG. 1, in the bed mode, the backrest / armrest 630 and the movable backrest 620 are arranged along the headboard / armrest 16 or the footboard / armrest 18, respectively. Since it is located substantially above it, it does not get in the way.

Moreover, in the bed mode, when the user lifts his / her upper body on the bed to read a book, he / she can lean on the backrest / armrest 630 and the movable backrest 620, which is a practical effect. Further, the backrest / armrest 630 and the movable backrest 620 give the impression of a luxurious bed, and the visual effect can be improved.

To convert the sofa / bed 610 from the bed mode shown in FIG. 1 to the sofa mode shown in FIG. 4, first, the movable half 63 of the backrest / armrest 630 is converted.
1 is moved in the direction shown by arrow A in FIG. 2 from the first position (see FIG. 1) along the headboard / armrest 16 to a second position substantially parallel to the center line extending in the longitudinal direction of the floor plate 14. . Around this, the mounting half 632
May be held in a state of being tilted upward by the tilting mechanism 640.

Then, the movable backrest 620 extends substantially parallel to the center line extending in the longitudinal direction of the floorboard 14 from the first position along the footboard / armrest 18 (see FIG. 2),
A second position, which is adjacent to the movable half 631 of the backrest and armrest 630 in the second position and is continuous in the longitudinal direction (FIG. 4).
Please refer to). Second movable backrest 620
To move to the position, first, as shown in FIG. 3, the movable backrest 620 is pushed out in the direction indicated by the arrow B. At this time, as shown in FIG. 10 and FIG.
0 and one arm 142 of the movable device 140 are rotatably connected to each other.
And the other arm 1 rotatably connected to the armrest 16 that also serves as a headboard through a position adjustment and damage prevention mechanism.
Since 43 and 43 are rotatably connected to each other in the horizontal plane via the hinge bracket 141, the movable backrest 620 can be easily moved alone by moving the movable backrest 520 by hand. Next, as shown in FIG. 4, the movable backrest 620 is slid by the rail unit 660 in the direction indicated by the arrow C, and is moved to the second position where the movable backrest 620 and the movable half body 631 are continuous in the longitudinal direction.

As described above, the movable backrest 620 is the second
When moved to the position, as shown in FIG.
The two arms 142, 143 of 0 are almost in a straight line, but when the position of the movable backrest 620 moved to the second position is improper due to the variation in the accuracy of the woodworking product, the position adjustment and damage of the movable device 140 are performed. The position (angle) of the arm 143 can be finely adjusted in the up-down direction or the front-rear direction by rotating the adjusting nut 155 and the stopper 156 which form the prevention mechanism in an arbitrary direction, as shown by an imaginary line in FIG. Further, as shown in FIG. 8, the support angle of the movable half body 631 in the second position can also be adjusted in the direction of arrow F, if necessary.

As a result, as shown in FIG. 4, the hook 652 forming the connecting mechanism 650 on one end surface of the movable backrest 620 is fitted into the engaging hole 651 provided on one end surface of the movable half body 631. The movable half 631 and the movable backrest 620, which are both in the second position, can be prevented from being deformed to the back side by the connection mechanism 650.

Further, in the sofa mode shown in FIG. 4, when an excessive load is applied to the movable backrest 620, the overload is a coil spring which constitutes a position adjusting and damage preventing mechanism of the movable device 140 shown in FIG. Since it is appropriately absorbed by 154, damage to the product is prevented. In such a sofa mode, the mounting half 632 of the backrest / armrest 630 which is still along the headboard / armrest 16 is used as the backrest, and the movable half 631 of the backrest / armrest 630 moved to the second position is used. By using it as an armrest, the sofa and bed 6
10 like a so-called couch type,
You can also sit in a relaxed position, such as lying down. On the other hand, the backrest and armrest 63 held in the second position
The movable half 631 of 0 and the movable backrest 620, which is also held in the second position, may be used as they are as the backrest.

In order to convert the movable backrest 620 and the movable half 631 held in the second position from the sofa mode to the bed mode, the reverse operation to the above may be performed. Moreover, the appearance of each arm 142, 143 and the rail unit 660 shown in FIG. 4 can be improved by appropriately covering them with a cover or the like. Next, with reference to FIGS. 14 to 17, a sofa / bed 710 according to a second embodiment of the present invention will be described.
The same types of parts as those in the first embodiment are designated by the same reference numerals, and a duplicate description will be omitted.

Sofa bed 71 according to this embodiment
The shapes of the bed mode and the sofa mode of 0 are almost the same as those of the first embodiment, and the movable device 2
Also in the point that 40 is provided with a position adjusting and damage preventing mechanism, it is common to the first embodiment, but in this embodiment the movable device 2 is used.
The structure of 40 and its position adjusting and damage preventing mechanism is different from that of the first embodiment.

As shown in FIG. 14, a movable backrest 620 is provided.
Is an armrest 5 that also serves as a headboard via the movable device 240.
It is supported by 16 so as to be movable between a first position and a second position. The movable device 240 includes one metal single arm 2
41 is provided. The tip of this one arm 241 is
It is rotatably connected via a shaft 145 to a rail unit 760, which will be described later, provided on the substrate 624 side of the movable backrest 620. Further, the base end portion of the single arm 241 is attached to the mounting bracket 2 of the armrest 516 which also serves as a headboard.
A support shaft 251 which is pivoted almost vertically to 50
Is rotatably connected in the horizontal direction.

More specifically, as shown in FIG. 16, a long hole 242 is formed in the base end portion of the single arm 241, and a support shaft 251 is inserted through the long hole 242. As a result, the single arm 241 has the support shaft 251 that is inserted into the elongated hole 242 as the center.
It can swing up and down to some extent. Coil springs 247, 247 are provided on the upper and lower ends of the support shaft 251 so as to sandwich the base end of the single arm 241 therebetween. In addition, the position return member 24 is provided between the base end of the single arm 241 and the coil spring 247 on the lower side thereof.
4 is installed.

As shown in FIG. 16, the position return member 244
A round hole 246 having an inner diameter substantially equal to the outer diameter of the support shaft 251 is formed in the hole, and the support shaft 251 is inserted into the round hole 246. Also, the position return member 244
Has an engaging upper portion 245 that matches an inverted V-shaped engaged groove 243 formed on the lower side of the base end portion of the single arm 241, and in a normal state, this engaging upper portion 245 has a coil spring 247. The one arm 241 is kept in a horizontal state by the urging force of.

As described above, the position returning member 244 swings about the support shaft 251 as a center of the single arm 2 when the movable backrest 620 is excessively loaded.
It serves to restore 41 to its original horizontal state.
Further, the threaded portion 251 is provided on the lower end side of the support shaft 251.
a is provided, and an adjusting nut 248 capable of adjusting the height position for supporting the single arm 241 via the elastic force of the coil spring 247 is rotatably screwed to the screw portion 251a. The coil springs 247 and 247 also play a role of absorbing a load to prevent damage when an excessive load is applied.

Further, as shown in FIG. 14, the assembly bracket 250 has a screw-type stopper 249 that abuts the side surface of the single arm 241 on the base end side when the movable backrest 620 is in the second position. Is provided. This stopper 2
The movable shaft 251 is configured by rotating the screw shaft 49 with a screwdriver to appropriately adjust the degree of protrusion on the distal end side.
Is for adjusting the end position of the horizontal rotation of the single arm 241 around the center of the arm 241 and for adjusting the front-back direction position of the movable backrest 620 moved to the second position.

As described above, the support shaft 25 for supporting the single arm 241 so that the angle can be adjusted in the vertical and longitudinal directions.
1, position return member 244, coil springs 247, 247,
The adjustment nut 248, the stopper 249, and a rail unit 760, which will be described later, that supports the movable backrest 620 so that the position of the movable backrest 620 can be adjusted in the left-right direction, constitute a position adjustment and damage prevention mechanism for the movable device 240. This position adjustment / damage prevention mechanism is incorporated in advance in the assembly bracket 250 that is screwed to the upper part of the headboard / armrest 516, and constitutes one unit.

As shown in FIG. 15, a mounting bracket 144 rotatably connected to one end of an arm 241 by a shaft 145 is integrally provided at one end of an inner fitting rail 762 which constitutes a rail unit 760. There is.
The rail unit 760 is to move the movable backrest 620 moved to the position shown in FIG. 3 to the second position close to the movable half 631 by further moving it in the direction of arrow C in FIG. Arm 1
It is a member that constitutes the movable device 240 together with 42, 143 and the like.

More specifically, the rail unit 760 is screwed onto the base plate 624 of the movable backrest 620 so as to extend in the left-right direction, and the outer-fitting rail 761 is slidably fitted in the left-right direction. Of the inner fitting rail 762. As shown in FIG. 15, the outer fitting rail 761 has a dovetail groove into which the inner fitting rail 762 fits. Further, as shown in FIG. 17, a stopper 763 that comes into contact with the side wall portion of the single arm 241 is integrally provided on one end side of the inner fitting rail 762.

In the sofa / bed 710 according to the second embodiment of the present invention, the bed mode is changed to the sofa mode or vice versa by the same operation as the sofa / bed 610 according to the first embodiment. can do. When the movable backrest 620 moves to the second position, as shown in FIG. 14, the single arm 241 is substantially at a right angle to the headboard / armrest 516, but is in the second position due to variations in the accuracy of the woodworking product. Even when the angle of the movable backrest 620 with respect to the horizontal direction is slightly inclined or deviated, the one arm 241 is provided with the long hole 24.
Since the support shaft 251 which is inserted into the second shaft can be swung in the vertical direction to some extent, the vertical angle of the movable backrest 620 can be appropriately adjusted.

Further, an adjusting nut 248 and a stopper 249 which constitute a position adjusting and damage preventing mechanism for the movable device 240.
By rotating the arm in any direction,
1, that is, the height position and front-back position of the movable backrest 620 can be finely adjusted as appropriate. In addition, a movable backrest 620
In the sofa mode (see FIG. 1), when an excessive load is applied to the movable backrest 620, the overload causes a coil spring 247, which constitutes a position adjusting and damage preventing mechanism.
Since it is appropriately absorbed by 247, damage to the product is prevented. At this time, the one arm 241 that is temporarily tilted due to overload has a coil spring 2 in its engaged groove 243.
Position return member 2 that is elastically engaged by the biasing force of 47
It is immediately returned to the horizontal state by 44.

Next, with reference to FIGS. 18 to 20, a sofa / bed 800 according to a third embodiment of the present invention will be described. The same types of parts as those in the second embodiment are designated by the same reference numerals, and the duplicated description will be omitted. The shape of the sofa / bed 800 according to the present embodiment in the bed mode and the sofa mode is substantially the same as that of the second embodiment, and the movable device 240 is also the same as that of the second embodiment. In the embodiment, the movable backrest 620 is
It is characterized in that the movable device 240 is displaceably connected to a position substantially above the first position and the second position.

That is, as shown in FIG. 20, the shaft 14 is attached to the tip of the single arm 241 of the movable device 240.
The rail unit 760 is rotatably connected in a horizontal direction via the rail 5, and the back side of the movable backrest 620 is attached to the outer fitting rail 761 forming the rail unit 760 via the hinge bracket 144a.

This hinge bracket 144a is shown in FIG.
As shown in FIG. 19, the movable backrest 620 is displaced from the first position (also for the second position) to a position above the first position (also for the second position) as shown in FIG. It is a thing. Next, the operation of the sofa / bed 800 according to the third embodiment of the present invention will be described.

As shown in FIG. 18, when converting the sofa / bed 800 in the bed mode to the sofa mode, first, the bedding 811 on the mattress 12 is folded in half so that the person can sit on the sofa. . Then, as shown in FIG. 19, the movable backrest 620 in the first position is displaced to a position above the first position by the hinge bracket 144a.

In such a state (see FIG. 19), even if the movable backrest 620 is horizontally rotated by the movable device 240 from the first position side to the second position side, it is positioned below the movable backrest 620. Bedding 81 folded in half vertically
You never hit one. Thereby, when the sofa / bed 800 is displaced from the bed mode to the sofa mode, the movable backrest 620 is easily moved from the first position to the second position without the bedding 811 on the mattress 12 being in the way. be able to.

[0058]

According to the sofa / bed according to the present invention, in the bed mode, the backrest / armrest and the movable backrest are arranged substantially above the headboard or footboard, respectively. Because it is done
It doesn't get in the way. Moreover, in the bed mode, when the user lifts the upper body on the bed to read a book, the user can lean on the backrest / armrest or the movable backrest, which is a practical effect. Further, when a cushion is provided on the backrest / armrest or the movable backrest, an impression as a luxurious bed can be obtained, and the visual effect can be improved.

On the other hand, in the sofa mode,
By using the mounting half of the backrest and armrest along the headboard (or footboard) as the backrest, and using the movable half of the backrest and armrest moved to the second position as the armrest, the so-called bed for sofa can be used. You can sit down in a relaxed position like a couch-type chair.
In addition, the movable back half that holds the backrest and armrest held in the second position, and the movable backrest that is also held in the second position,
You may use it as it is as a backrest.

Further, when the movable device for supporting the movable backrest on the footboard so as to be movable between the first position and the second position is provided, the mutual conversion between the bed mode and the sofa mode can be efficiently performed. Can be done. Further, when the movable device is provided with a position adjusting and damage preventing mechanism, by adjusting the position of the movable backrest in at least one of the up-down direction, the front-rear direction and the left-right direction,
It is possible to appropriately eliminate the variation in accuracy after assembling the sofa / bed, and to prevent damage to the product itself due to overload when the movable backrest is overloaded.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a sofa / bed according to a first embodiment of the present invention is used as a bed.

FIG. 2 is an operation explanatory view showing a state in the middle of converting the sofa / bed according to the first embodiment of the present invention from the bed mode to the sofa mode.

FIG. 3 is an operation explanatory view showing a state in the middle of converting the sofa / bed according to the first embodiment of the present invention from the bed mode to the sofa mode.

FIG. 4 is a perspective view showing a state in which the sofa / bed according to the first embodiment of the present invention is used as a sofa.

5 is a view on arrow V in FIG. 1. FIG.

FIG. 6 is a plan view showing a state in which the movable half of the sofa / bed according to the first embodiment of the present invention is moved from the first position to the second position by the rotating mechanism.

FIG. 7 is an enlarged plan view showing a rotating mechanism of the sofa / bed according to the first embodiment of the present invention.

FIG. 8 is a view on arrow VIII in FIG. 7.

FIG. 9 is an exploded perspective view showing a structure in which the movable half of the sofa / bed according to the first embodiment of the present invention is supported by a rotating mechanism.

FIG. 10 is a perspective view showing a disassembled state of the movable device of the sofa / bed according to the first embodiment of the present invention.

FIG. 11 is an enlarged perspective view showing the movable device of the sofa / bed according to the first embodiment of the present invention.

FIG. 12 is an operation explanatory view showing a state in which the arm supported by the movable device of the sofa / bed according to the first embodiment of the present invention swings.

FIG. 13 is a cross-sectional view showing a state in which an arm is connected to a movable back half of the sofa / bed according to the first embodiment of the present invention.

FIG. 14 is a perspective view seen from the back side in the sofa mode with a part of the movable backrest half cut away to show the movable device of the sofa / bed according to the second embodiment of the present invention.

FIG. 15 is an exploded perspective view seen from the back side in the sofa mode with a part of the movable backrest half body cut away to show the movable device of the sofa / bed according to the second embodiment of the present invention.

FIG. 16 is a perspective view showing a disassembled state adjusting / damage preventing mechanism provided in the movable device for a sofa / bed according to the second embodiment of the present invention.

FIG. 17 is an enlarged perspective view showing one end of an inner fitting rail that constitutes a movable device for a sofa / bed according to a second embodiment of the present invention.

FIG. 18 is a perspective view showing a state in which the bedding on the mattress is folded in half vertically when the sofa / bed according to the third embodiment of the present invention is in the bed mode.

FIG. 19 is a perspective view showing a state where the movable backrest of the sofa / bed according to the third embodiment of the present invention is displaced to a position substantially above the first position.

FIG. 20 is a perspective view showing a movable device and a hinge bracket of the sofa / bed according to the third embodiment of the present invention.

[Explanation of symbols]

 610 ... Mechanism 140, 240 ... Mobile device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Osamu Kashima 2-9-9 Namiki, Kanazawa-ku, Yokohama, Kanagawa

Claims (6)

[Claims] 1. A sofa which comprises a floorboard, headboards or footboards provided at both ends of the floorboard, a backrest / armrest, and a movable backrest, and which can be converted into a bed mode and a sofa mode. In a bed, the backrest and armrest is mounted along the headboard (or footboard), and the backrest and armrest is divided into a movable half and a mounting half, and the movable half is The movable backrest is movable along a first position along the headboard (or footboard) and a second position substantially parallel to a centerline extending in the longitudinal direction of the floorboard, and the movable backrest is along the footboard (or headboard). It extends substantially parallel to the first position and a center line extending in the longitudinal direction of the floorboard, and is close to the movable half of the backrest and armrest at the second position. In the bed mode, the movable half of the backrest and armrest is held in the first position and the movable backrest is held in the first position. In the sofa mode, the sofa-bed is characterized in that the movable half of the backrest and armrest is held in a second position and the movable backrest is held in the second position. 2. The movable backrest is attached to the first position and the second position.
The sofa-combined bed according to claim 1, further comprising a movable device that is supported by the footboard (or headboard) so as to be movable to a position. 3. The movable device is capable of adjusting the position of the movable backrest in at least one of an up-down direction, a front-rear direction and a left-right direction, and is broken when an excessive load is applied to the movable backrest. 3. The sofa / bed according to claim 2, further comprising a position adjusting / damage preventing mechanism capable of absorbing a load to prevent the above-mentioned problem. 4. In the sofa mode, a connecting mechanism is provided for connecting and supporting the movable half of the backrest and armrest held in the second position and the movable backrest held in the second position. The sofa / combined bed according to claim 1, 2, or 3. 5. The mounting half of the backrest and armrest along the headboard (or footboard),
The sofa / bed according to claim 1, 2, 3 or 4, which is mounted so that a tilt angle can be adjusted. 6. The sofa combined use according to claim 2 or 3, wherein the movable backrest is connected to the movable device so as to be displaceable to a position substantially above the first position and the second position. bed.