JP2004041512A - Apparatus for both sofa and bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for both sofa and bed whose constitution is simplified and which is easily changed to a sofa or a bed. <P>SOLUTION: The apparatus for both sofa and bed is provided with: a first leg member 2 which is provided extending in a width direction on a lower surface of one end in a prescribed direction of a main frame 1 and has its lower end projecting outward from one end of the main frame; a second leg member 4 provided extending in a width direction at the other end of the prescribed direction of the main frame and supports the main frame nearly horizontally with the first leg member; a movable frame 7 which is rotatably connected to one end in the prescribed direction of the main frame; and a movable leg member 12 whose upper end is connected rotatably to a lower surface of the movable frame to nearly horizontally support this movable frame at the same height as that of a support frame and whose lower end is engaged with a middle part of the first leg member by rotating it with the upper end part as a fulcrum when the movable frame is stood up at a prescribed angle to keep the movable frame at a prescribed standing angle. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sofa / bed device that can be converted into a sofa and used.
[0002]
[Prior art]
There are various types of sofa / bed apparatus of this type, and the present applicant has proposed a sofa / bed apparatus disclosed in Japanese Utility Model Publication No. 6-8759. The sofa / bed apparatus disclosed in this publication includes a base frame. A first seat frame is pivotally connected at one end to an upper surface of the base frame, and a second seat frame is pivotally mounted at one end to the other end of the first seat frame. At the other end of the second seat frame, a third seat frame is provided with one end pivotally mounted. A cushion body is provided on the upper surfaces of the first to third seat frames.
[0003]
When the first to third seat frames are deployed substantially horizontally, their upper surfaces can be used as bed surfaces, and the first and second seat frames are bent into a mountain shape and stand upright. Then, since these seat frames act as backrests and the third seat frame acts as a horizontal seat, it can be used as a sofa.
[0004]
[Problems to be solved by the invention]
However, according to the sofa / bed apparatus having such a configuration, three seat frames are required to form a bed surface when used as a bed or to form a backrest and a seat when used as a sofa. Not only will you need a base frame. The base frame supports the first seat frame when used as a bed, and the first and second seat frames forming a backrest when used as a sofa and a third seat frame forming a seat. Is needed to support
[0005]
Further, when used as a sofa, a holding mechanism is required to hold the first and second seat frames upright and the third seat frame slid on the base frame in that state.
[0006]
Therefore, due to these factors, the conventional sofa / bed apparatus has a large number of parts and a complicated configuration, and there is a case where a conversion operation between the sofa and the bed is not easy.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to provide a sofa / bed apparatus that requires a small number of parts and has a simple configuration.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 includes a main frame,
A first leg member provided over the lower surface of one end of the main frame in a predetermined direction and having a lower end protruding outward from one end of the main frame;
A second leg member provided at the other end of the main frame in a predetermined direction across the width direction and supporting the main frame substantially horizontally with the first leg member;
A movable frame rotatably connected to one end of the main frame in a predetermined direction,
The upper end is rotatably connected to the lower surface of the movable frame, supports the movable frame substantially horizontally at the same height as the support frame, and raises the upper end when the movable frame is raised at a predetermined angle. A movable leg member that holds the movable frame at a predetermined upright angle by rotating as a fulcrum and engaging the lower end with the lower end of the first leg member;
A sofa / bed apparatus comprising:
[0009]
According to a second aspect of the present invention, a floor member is provided on the main frame and the movable frame, and a first cushion body is removably mounted on the floor member of the main frame. A second cushion body is detachably mounted on the upper surface, and one end of a sheet-like cover is connected to a lower surface of the first cushion body, and the cover is connected to a lower surface of a floor member of the movable frame and 2. The sofa / bed apparatus according to claim 1, wherein the upper surface is covered and the other end is detachably connected to one end of the cover.
[0010]
The invention according to claim 3 has an additional frame supported at substantially the same height as the main frame by a pair of third leg members provided on the lower surface of one end and the other end in a predetermined direction across the width direction. When the additional frame is installed at the other end of the main frame in a predetermined direction, the third leg member engages with a second leg member provided at the other end of the main frame in a predetermined direction. The sofa / bed apparatus according to claim 1, wherein the additional frame is prevented from moving in a direction away from the main frame.
[0011]
The invention according to claim 4 is the sofa / bed apparatus according to claim 3, wherein a floor member is provided on the additional frame, and a third cushion body is provided on the floor member.
[0012]
According to the present invention, the structure can be simplified because it can be constituted by the main frame and the movable frame, and the conversion from the bed to the sofa raises the movable frame, and the movable leg member is moved to the main frame. It is only necessary to engage with the first leg member, so that the conversion operation is also easy.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 is a perspective view showing a state in which a sofa / bed apparatus according to one embodiment of the present invention is used as a sofa. This sofa / bed apparatus has a main frame in which a square pipe is bent in a U-shape. 1 is provided. At the open end of the main frame 1, a first leg member 2 whose front shape is U-shaped and whose side surface is bent substantially in the shape of a crank is provided at the upper end on both sides with the width of the main frame 1. It is fixed to the lower surface of one end and the other end in the direction.
[0015]
A lower end portion 2a of the first leg member 2 protrudes outward from one end of the main frame 2, and a locking rod 3 spaced parallel to the lower end portion 2a by a predetermined distance is provided between both sides of the protruding portion. Is provided.
[0016]
On the lower surface of the other end of the main frame 2, second leg members 4 each having a circular pipe curved so that the front shape is U-shaped and the side shape is substantially U-shaped, are fixed to the upper ends on both sides. It is provided. The lower end 4a of the second leg member 4 projects outward from the other end of the main frame.
[0017]
An open end of a movable frame 7 having a square pipe bent in a substantially U-shape is rotatably connected to one end of the main frame 2 at the open end. That is, as shown in FIG. 3, one end of the connecting piece 8 is fixed to the inner surface of both ends in the width direction of the open end of the movable frame 7. The other end of the connecting piece 8 is pivotally attached to the inner surface on both sides in the width direction of the open end of the main frame 2 by a pin 9. Thereby, the movable frame 7 is rotatably connected to the main frame 2.
[0018]
As shown in FIG. 4, a bag-shaped connecting member 11 having one end surface and a lower surface opened is fixed to the lower surface of both ends in the width direction of the middle part of the movable frame 7. The upper ends of the movable leg members 12 each having a substantially U-shaped front shape and a U-shaped side shape are rotatably connected to the pair of connecting members 11 by pins 13 respectively.
[0019]
As shown in FIG. 4, when the movable frame 7 is folded down in a state where the upper end of the movable leg member 12 is joined to the lower surface of the movable frame 7, the movable frame 7 is substantially horizontally moved by the movable leg member 12. Is to be retained.
[0020]
When the movable frame 7 is rotated at a predetermined angle as shown by a dashed line in FIG. 4 and the movable leg member 12 is rotated downward with the upper end serving as a fulcrum as also shown by a dashed line, the lower end Reference numeral 12a can be engaged between the lower end 2a of the first leg member 2 of the main frame 1 and the locking rod 3. As a result, the movable frame 7 is held upright at a predetermined angle so as not to fall down.
[0021]
The first leg member 2 and the movable leg member 12 are set to have substantially the same width dimensions, but the corners at both ends of the lower end portion 12a of the movable leg member 12 are curved in a round shape. Thereby, the lower end 12 a of the movable leg member 12 can be inserted into the lower end 2 a of the first leg member 2.
[0022]
As shown in FIGS. 3 and 4, on both inner surfaces of the main frame 1 and both inner surfaces of the movable frame 7, receiving members 14 are provided if they are made of an angle material. On these receiving members 14, a first floor member 20 in the form of a blind having a length extending over the entire length of the main frame 1 and the movable frame 7 is installed with both ends in the width direction being engaged.
[0023]
The first floor member 20 has a plurality of strips 21 as shown in FIGS. 5 (a) and 5 (b). The band plate 21 is hollow with an open lower surface, and has reinforcing ribs 21a provided inside the entire length in the longitudinal direction and the width direction (only the longitudinal direction is shown) as shown in FIG. Further, the band plate 21 is formed to be curved in a convex shape upward.
[0024]
At both ends of each band plate 21, bag members 22 formed of a synthetic resin into a box shape with one side open are mounted. A connecting piece 23 having an engaging hole 23a is formed on each end face of the bag member 22 on both sides in the longitudinal direction. The piece 22a is integrally formed.
[0025]
The strips 21 having the bag members 22 mounted on both ends are arranged at predetermined intervals, and a pair of adjacent bag members 22 are rotatably connected by connecting members 24 respectively. That is, the connecting member 24 includes a pair of plate members 24a and 24b.
[0026]
One of the plate members 24a has a pair of engagement pins 25 having a conical tip and having an engagement portion 25a formed to be elastically deformable in a radial direction by a slot. The other plate member 24b is formed with a pair of engagement holes 26 into which the engagement pins 25 can be inserted and locked.
[0027]
Then, the pair of engagement pins 25 provided on one plate member 24a are inserted into the engagement holes 23a of the connection pieces 23 of the pair of adjacent bag members 22, respectively, and the other engagement pins 25 are protruded from the connection pieces 23. By inserting the engaging hole 26 of the plate member 24b of the second plate member 24b and projecting the engaging portion 25a at the tip of the engaging pin 25 from the outer surface of the other plate member 24b, the pair of plate members 24a and 24b is turned to the connecting piece 23. Movably connected.
[0028]
A support pin 28 is provided at an appropriate position of the receiving member 13 so as to protrude into a gap formed by the pair of plate members 24a and 24b of the connecting member 24. This prevents the first floor member 20 from moving on the mounting frame 5 along the longitudinal direction of the mounting frame 5.
[0029]
That is, since the first floor member 20 having the above-described configuration is in the shape of a bendable blind as described above, when the movable frame 7 is erected at a predetermined angle with respect to the main frame 1, It bends according to the rotation of the frame 7. The strip 21 constituting the first floor member 20 is provided with the reinforcing ribs 21a and is curved upwardly in a convex shape, so that it has sufficient strength against load and cushioning performance.
[0030]
As shown in FIG. 1, a first cushion body 31 is placed on the main frame 1 of the first floor member 20, and a second cushion body 32 is placed on the movable frame 7. Have been. As shown in FIG. 7, one end of a rectangular sheet-shaped cover 33 is detachably connected to a lower surface of the first cushion body 31 by a fastener 34. A plurality of hooks 35a and 35b which are engaged and disengaged from each other are provided at predetermined intervals in the width direction of the cover 33 on the upper surface of one end of the cover 33 and the upper surface of the other end.
[0031]
As shown in FIG. 6, the cover 33 extends toward the movable frame 7 along the lower surface side of the first floor member 20, and is engaged with the frontmost strip 21 of the first floor member 20. The first floor member 20 is led out to the upper surface side and folded. The cover 33 is held by engaging a hook 35b provided on the upper surface of the other end with a hook 35a provided on the upper surface of the one end.
[0032]
As a result, the first cushion body 31 placed on the main frame 1 is held and fixed to the first floor member 20 by the cover 33, so that the first cushion body 31 is prevented from moving on the main frame 1. Further, since the cover 33 covers the portion of the first floor member 20 corresponding to the movable frame 7, when the movable frame 7 stands up at a predetermined angle as a sofa as shown in FIG. Since the first floor member 20 is not exposed on the lower surface of the, the appearance is improved.
[0033]
An additional frame 36 is installed at an end of the main frame 1 on the second leg member 4 side. The additional frame 36 has a rectangular frame shape having the same width as the main frame 1, and a receiving member 37 made of an angle material is provided on the inner surface on both sides in the width direction as shown in FIG. 4.
[0034]
At one end and the other end of the additional frame 36, a pair of third leg members 38 formed by bending the pipe material so that the front shape is U-shaped and the side shape is substantially U-shaped. Both ends in the direction are fixed to the receiving member 36. Thus, the additional frame 36 is horizontally held at substantially the same height as the main frame 1 by the pair of third leg members 38.
[0035]
The pair of third leg members 38 have lower ends 38 a projecting outward from the longitudinal ends of the additional frame 36, and the width of the lower ends 38 a is equal to the second leg members of the main frame 1. 4 has a width dimension that fits inside. That is, by allowing the upper end of the third leg member 38 to be attached to the receiving member 37, the width of the third leg member 38 becomes the width of the second leg member 4.
[0036]
Thereby, when the third leg member 38 and the second leg member 4 are engaged when the additional frame 36 is installed, the additional frame 36 is prevented from moving in the direction away from the main frame 1. Is done. That is, the additional frame 36 is detachably and integrally connected to the main frame 1.
[0037]
A second floor member 41 is installed on the receiving member 37 of the additional frame 36 by engaging both ends in the width direction. On the upper surface of the second floor member 41, a third cushion body 42 is placed. Since the second floor member 41 has the same configuration as the first floor member 20, the description is omitted.
[0038]
According to the sofa / bed apparatus having the above-described configuration, the movable frame 7 is horizontally laid down as shown by the solid line in FIG. 4, and the first frame is placed on the upper surfaces of the main frame 1, the movable frame 7 and the additional frame 36 as shown by the chain lines. Then, the third to third cushion bodies 31, 32, 42 are placed. Thereby, the plane formed by these cushion bodies can be used as a bed surface.
[0039]
When the sofa / bed device is used as a sofa, as shown in FIG. 1, the movable frame 7 is pivoted in the ascending direction, and the movable leg member 12 is pivoted in the descending direction. It is inserted and locked between the lower end 2 a of the first leg member 2 provided on the frame 1 and the locking rod 3.
[0040]
Thus, the movable frame 7 is held by the movable leg member 12 at a predetermined standing angle. Therefore, if the second cushion body 32 is attached to the movable frame 7, the movable frame 7 serves as a backrest, and can be used as a sofa. That is, since the movable frame 7 is held at a predetermined standing angle, the movable leg member 12 for horizontally supporting the movable frame 7 is used without using a member dedicated to holding, so that the number of parts is reduced. In addition, the configuration can be simplified.
[0041]
When used as a sofa, if the additional frame 36 is joined to the end of the main frame 1, the user sitting on the first cushion body 31 can throw out the legs on the upper surface of the additional frame 36. 6 can be used as a reclining type sofa, and can be used as a normal sofa by removing the additional frame 36 as shown in FIG.
[0042]
If the bed surface formed by the main frame 1 and the movable frame 7 has a sufficient length, it can be used as a bed without using the additional frame 36.
[0043]
On the other hand, when the additional frame 36 is used to obtain a sufficient length as a bed surface, the length of the main frame 1 can be reduced. Therefore, when converted to a sofa and used, by using or not using the additional frame 36, the sofa can be used as a reclining sofa or used as a normal sofa.
[0044]
As described above, the sofa / bed apparatus having the above-described configuration is constituted by the main frame 1 and the movable frame 7, and the movable leg member 12 is provided on the movable frame 7, and when converting from a bed to a sofa, the movable leg member 12 is used. The movable frame 7 can be held at a predetermined angle by rotating the movable frame 12 to engage the first leg member 2 of the main frame 1.
[0045]
Further, by installing the additional frame 36 at the end of the main frame 1, not only a sufficient length as a bed can be obtained, but also when using as a sofa, it depends on whether or not the additional frame 36 is present. Can be used as a type of sofa.
[0046]
Therefore, even if the additional frame 36 is used, the sofa / bed apparatus of the present invention can be constituted by the three frames 1, 7, 36 and the leg members 2, 4, 12, 38 supporting each frame. As a result, not only can a simple configuration be achieved with a small number of parts, but also the conversion operation between the bed and the sofa can be performed easily and quickly.
[0047]
The present invention is not limited to the above embodiment, and can be variously modified. For example, although the first and second floor members have a child-like shape, they may have a plate shape instead. In that case, the plate-like floor member provided on the main frame and the movable frame is divided. Further, the main frame and the movable frame may be formed in a rectangular frame shape as in the case of the additional frame.
[0048]
【The invention's effect】
As described above, since the sofa / bed apparatus of the present invention can be constituted by the main frame and the movable frame, the structure can be simplified, and the conversion from the bed to the sofa can be achieved by raising the movable frame. The conversion operation is also easy because the movable leg members provided on the movable frame need only be engaged with the first leg members of the main frame.
[Brief description of the drawings]
FIG. 1 is a perspective view of a sofa / bed apparatus according to an embodiment of the present invention.
FIG. 2 is a perspective view of a frame excluding a cushion body from a sofa / bed device.
FIG. 3 is an enlarged perspective view showing a connection portion between a main frame and a movable frame.
FIG. 4 is a sectional view taken along a longitudinal direction of the frame shown in FIG. 2;
5A is a side view of a floor member, and FIG. 5B is a partially sectional plan view.
FIG. 6 is a side view of a state converted into a sofa.
FIG. 7 is a perspective view showing a first cushion body and a cover connected to the first cushion body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Main frame 2 ... 1st leg member 4 ... 2nd leg member 7 ... Movable frame 20 ... 1st floor member 31 ... 1st cushion body 32 ... 2nd cushion body 33 ... Cover 36 ... Additional frame 41: second floor member 42: third cushion body

Claims (4)

A main frame,
A first leg member provided over the lower surface of one end of the main frame in a predetermined direction and having a lower end protruding outward from one end of the main frame;
A second leg member provided at the other end of the main frame in a predetermined direction across the width direction and supporting the main frame substantially horizontally with the first leg member;
A movable frame rotatably connected to one end of the main frame in a predetermined direction,
The upper end is rotatably connected to the lower surface of the movable frame, supports the movable frame substantially horizontally at the same height as the support frame, and raises the upper end when the movable frame is raised at a predetermined angle. A movable leg member that holds the movable frame at a predetermined standing angle by rotating as a fulcrum and engaging the lower end with the lower end of the first leg member;
A sofa / bed apparatus comprising: A floor member is provided on the main frame and the movable frame, a first cushion body is removably mounted on the floor member of the main frame, and a second cushion is mounted on the floor member of the movable frame. The body is mounted detachably,
One end of a sheet-shaped cover is connected to the lower surface of the first cushion body. The cover covers the lower surface and the upper surface of the floor member of the movable frame, and the other end is detachably connected to one end of the cover. The sofa / bed apparatus according to claim 1, wherein An additional frame supported at substantially the same height as the main frame by a pair of third leg members provided on a lower surface of one end and the other end in a predetermined direction across the width direction; When the additional frame is installed at the other end of the main frame in a predetermined direction, the leg member engages with a second leg member provided at the other end of the main frame in a predetermined direction, and the additional frame is attached to the main frame. The sofa / bed apparatus according to claim 1, wherein the bed apparatus is prevented from moving in a direction away from the frame. 4. The sofa / bed apparatus according to claim 3, wherein a floor member is provided on the additional frame, and a third cushion body is provided on the floor member.

Images