JP4001517B2 - Sofa bed equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sofa / bed apparatus that can be used after being converted to a sofa.
[0002]
[Prior art]
There are various types of this type of sofa / bed apparatus, 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 attached to the upper surface of the base frame, and a second seat frame is pivotally attached to the other end of the first seat frame. A third seat frame is pivotally attached at one end to the other end of the second seat frame. A cushion body is attached to the upper surfaces of the first to third seat frames.
[0003]
If the first to third seat frames are deployed almost horizontally, their upper surfaces can be used as bed surfaces, and the first seat frame and the second seat frame are bent up in a mountain shape to stand upright. Then, since these seat frames become backrests and the third seat frame becomes 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 structure, in order to form a bed surface when used as a bed or to form a backrest and a seat when used as a sofa, three seat frames are used. 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 that form a backrest when used as a sofa and the third seat frame that forms a seat. Necessary to support
[0005]
Furthermore, when using as a sofa, a holding mechanism is required to hold the first and second seat frames that are erected and the third seat frame that is slid onto the base frame in that state.
[0006]
Therefore, the conventional sofa / bed apparatus has a large number of parts, a complicated configuration, and a conversion operation between the sofa and the bed is not easy.
[0007]
It is an object of the present invention to provide a sofa / bed apparatus that requires only a small number of parts and can have a simple configuration.
[0008]
[Means for Solving the Problems]
The invention of claim 1 comprises a main frame;
A first leg member provided across the width direction on the lower surface of one end of the main frame in a predetermined direction and having a lower end projecting outward from one end of the main frame;
A second leg member provided across the width direction at the other end of the main frame in a predetermined direction and supporting the main frame substantially horizontally with the first leg member;
A movable frame rotatably connected to one end in a predetermined direction of the main frame;
The upper end of the movable frame is pivotally connected to the lower surface of the movable frame so that the movable frame is supported substantially horizontally at the same height as the main frame, and when the movable frame is raised at a predetermined angle, the upper end is 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 characterized by 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 detachably mounted on the floor member of the main frame, and the floor member of the movable frame is provided. A second cushion body is detachably mounted thereon, and one end of a sheet-like cover is connected to the lower surface of the first cushion body, and this cover is connected to the lower surface of the floor member of the movable frame and The sofa / bed apparatus according to claim 1, wherein the bed is covered with an upper surface and the other end is detachably connected to one end of the cover.
[0010]
The invention of claim 3 has an additional frame supported at the same height as the main frame by a pair of third leg members provided across the width direction on the lower surfaces of the one end and the other end in the predetermined direction. One third leg member engages with a second leg member provided at the other end in the predetermined direction of the main frame when the additional frame is installed at the other end in the predetermined direction of the main frame. 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]
According to a fourth aspect of the invention, there is provided the sofa / bed apparatus according to the third aspect, 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, since the main frame and the movable frame can be used, the configuration can be simplified, and the conversion from the bed to the sofa raises the movable frame, and the movable leg member is used as the main frame. Since it is only necessary to engage the first leg member, the conversion operation is also easy.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
[0014]
FIG. 1 is a perspective view showing a state where a sofa / bed apparatus according to an embodiment of the present invention is used as a sofa, and the sofa / bed apparatus is a main frame in which a square pipe is bent in a U-shape. 1 is provided. At one end of the main frame 1 on the open end side, a first leg member 2 having a U-shaped front surface and a substantially side-shaped side surface is bent at the upper ends on both sides. It is fixedly provided on the lower surfaces of the one end and the other end in the direction.
[0015]
A lower end 2a of the first leg member 2 protrudes outward from one end of the main frame 2, and a locking rod 3 spaced in parallel with the lower end 2a at a predetermined interval 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, a second leg member 4 having a circular pipe bent so that the front surface shape is U-shaped and the side surface shape is substantially rounded is fixed to the upper ends on both sides. Is provided. The lower end 4a of the second leg member 4 projects outward from the other end of the main frame.
[0017]
One end on the open end side of the main frame 2 is rotatably connected to one end on the open end side of the movable frame 7 formed by bending a square pipe in a substantially U shape. That is, one end of the connecting piece 8 is fixed to the inner surfaces of both ends in the width direction of the open end of the movable frame 7 as shown in FIG. 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 pins 9. Thereby, the movable frame 7 is rotatably connected to the main frame 2.
[0018]
As shown in FIG. 4, a bag-like connecting member 11 having one end surface and a lower surface open is fixed to the lower surface of both end portions in the width direction of the middle portion of the movable frame 7. The upper ends of the movable leg members 12 whose front shape is substantially U-shaped and whose side shape is U-shaped are connected to the pair of connecting members 11 by pins 13 respectively.
[0019]
As shown in FIG. 4, when the movable frame 7 is laid down with the upper end portion of the movable leg member 12 being joined to the lower surface of the movable frame 7, the movable frame 7 is almost horizontal by the movable leg member 12. It is supposed to be retained.
[0020]
When the movable frame 7 is rotated at a predetermined angle as shown by a chain line in FIG. 4, when the movable leg member 12 is rotated downward with the upper end as a fulcrum as shown by the chain line, the lower end portion thereof. 12 a can be engaged between the lower end 2 a 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 in a state where it cannot fall over while standing at a predetermined angle.
[0021]
Although the said 1st leg member 2 and the movable leg member 12 are set to the substantially same width dimension, the both-ends corner | angular part of the lower end part 12a of the movable leg member 12 is curving in a round shape. As a result, the lower end 12 a of the movable leg member 12 can be put into the lower end 2 a of the first leg member 2.
[0022]
As shown in FIGS. 3 and 4, receiving members 14 are provided on the inner surfaces on both sides of the main frame 1 and the inner surfaces on both sides of the movable frame 7. On these receiving members 14, first hook-like floor members 20 having a length extending over the entire length of the main frame 1 and the movable frame 7 are erected with both end portions in the width direction engaged.
[0023]
The first floor member 20 includes a plurality of strips 21 as shown in FIGS. 5 (a) and 5 (b). The band plate 21 is hollow with the lower surface open, and inside thereof, as shown in FIG. 3, reinforcing ribs 21a are provided over the entire length in the longitudinal direction and the width direction (only the longitudinal direction is shown). Further, the belt plate 21 is formed in a curved shape convex upward.
[0024]
A bag member 22 formed in a box shape with one side surface opened by a synthetic resin is attached to both ends of each band plate 21. A connecting piece 23 having an engagement hole 23a is provided on each end face of the bag member 22 in the longitudinal direction, and a pair of elastic bands having one end connected to the lower face on the lower face perpendicular to the end face. The piece 22a is integrally formed.
[0025]
The band plates 21 with the bag members 22 attached to both ends are arranged at predetermined intervals, and a pair of adjacent bag members 22 are connected to each other by a connecting member 24 so as to be rotatable. That is, the connecting member 24 includes a pair of plate members 24a and 24b.
[0026]
One plate member 24a is provided with a pair of engaging pins 25 each having a conical end and having an engaging portion 25a that is elastically deformable in the radial direction by a slit groove. A pair of engagement holes 26 into which the engagement pins 25 can be inserted and locked are formed in the other plate member 24b.
[0027]
Then, a pair of engaging pins 25 provided on one plate member 24 a are inserted into the engaging holes 23 a of the connecting pieces 23 of the pair of adjacent bag members 22, and the engaging pins 25 protruding from the connecting pieces 23 are inserted into the other. By inserting the engagement hole 26 of the plate member 24b and projecting the engagement portion 25a at the tip end of the engagement pin 25 from the outer surface of the other plate member 24b, the pair of plate members 24a and 24b rotate around the connecting piece 23. It is linked movably.
[0028]
Support pins 28 projecting into gaps formed by the pair of plate members 24a and 24b of the connecting member 24 are provided at appropriate positions on the receiving member 13 respectively. Thereby, the first floor member 20 is prevented 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 has a bendable hook shape as described above, when the movable frame 7 is erected at a predetermined angle with respect to the main frame 1, the first floor member 20 is movable. The frame 7 is bent according to the rotation. The band plate 21 constituting the first floor member 20 is provided with reinforcing ribs 21a and is curved upward so as to have sufficient strength and cushioning performance against the load.
[0030]
As shown in FIG. 1, a first cushion body 31 is placed on the main frame 1 portion of the first floor member 20, and a second cushion body 32 is placed on the movable frame 7 portion. Has been. As shown in FIG. 7, one end of a rectangular sheet-like cover 33 is detachably connected to the lower surface of the first cushion body 31 by a fastener 34. A plurality of hooks 35 a and 35 b that are engaged with 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 portion and the upper surface of the other end portion of the cover 33.
[0031]
As shown in FIG. 6, the cover 33 extends to the movable frame 7 side along the lower surface side of the first floor member 20, and is engaged with the most advanced band plate 21 of the first floor member 20. The first floor member 20 is led to the upper surface side and folded back. 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 it is prevented from shifting on the main frame 1. Further, since the cover 33 covers a portion corresponding to the movable frame 7 of the first floor member 20, when the movable frame 7 stands up at a predetermined angle as shown in FIG. Since the 1st floor member 20 is not exposed to the lower surface of 7, the external appearance improves.
[0033]
An additional frame 36 is installed at the 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 that of the main frame 1, and a receiving member 37 made of an angle member is provided on the inner surfaces on both sides in the width direction as shown in FIG.
[0034]
One end and the other end of the additional frame 36 have 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 end portions in the direction are fixed to the receiving member 36. As a result, the additional frame 36 is held horizontally by a pair of third leg members 38 at substantially the same height as the main frame 1.
[0035]
The pair of third leg members 38 has a lower end portion 38a protruding outward from an end portion in the longitudinal direction of the additional frame 36, and the width dimension of the lower end portion 38a is the second leg member of the main frame 1. 4 has a width that goes into 4. That is, by allowing the upper end of the third leg member 38 to be attached to the receiving member 37, the width dimension becomes a width dimension that enters the second leg member 4.
[0036]
Accordingly, when the additional frame 36 is installed, if the third leg member 38 and the second leg member 4 are engaged, the additional frame 36 is prevented from moving away from the main frame 1. Is done. That is, the additional frame 36 is integrally connected to the main frame 1 so as to be detachable.
[0037]
A second floor member 41 is installed on the receiving member 37 of the additional frame 36 with both ends in the width direction engaged. A third cushion body 42 is placed on the upper surface of the second floor member 41. Since the second floor member 41 has the same configuration as the first floor member 20, description thereof will be omitted.
[0038]
According to the sofa / bed apparatus having the above configuration, the movable frame 7 is horizontally laid down as shown by a solid line in FIG. 4, and the first frame as shown by chain lines on the upper surfaces of the main frame 1, the movable frame 7 and the additional frame 36, respectively. Thru | or the 3rd cushion bodies 31, 32, and 42 are mounted. Thereby, a plane formed by these cushion bodies can be used as a bed surface.
[0039]
When the sofa / bed apparatus is used as a sofa, as shown in FIG. 1, the movable frame 7 is rotated in the upward direction and the movable leg member 12 is rotated in the downward direction. The first leg member 2 provided on the frame 1 is inserted and locked between the lower end 2 a of the first leg member 2 and the locking rod 3.
[0040]
Thereby, the movable frame 7 is held at a predetermined standing angle by the movable leg member 12. Therefore, if the second cushion body 32 is attached to the movable frame 7, the movable frame 7 becomes a backrest, and can be used as a sofa. That is, since the movable frame 7 is held at a predetermined standing angle without using a dedicated holding member, the movable leg member 12 for horizontally supporting the movable frame 7 is used, thereby reducing the number of parts. In addition, the configuration can be simplified.
[0041]
When using as a sofa, if the additional frame 36 is joined to the end of the main frame 1, a user sitting on the first cushion body 31 can throw out his legs on the upper surface of the additional frame 36. It can be used as a reclining 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, the bed can be used without using the additional frame 36.
[0043]
On the other hand, when the additional frame 36 is used to obtain a sufficient length dimension as a bed surface, the length dimension of the main frame 1 can be shortened. Therefore, when converting to a sofa and using it, the additional frame 36 can be used or not, so that it can be used as a reclining sofa or a normal sofa.
[0044]
As described above, the sofa / bed apparatus having the above-described configuration includes the main frame 1 and the movable frame 7, and the movable leg member 12 is provided on the movable frame 7. The movable frame 7 can be held at a predetermined angle by rotating 12 to engage the first leg member 2 of the main frame 1.
[0045]
Furthermore, by installing the additional frame 36 at the end of the main frame 1, it is possible not only to obtain a sufficient length as a bed, but also when used 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 that support each frame. Therefore, not only can the configuration be simple 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 one embodiment described above and can be variously modified. For example, although the first and second floor members have been used in the form of a spider, a plate shape may be used instead. In that case, the plate-like floor members provided on the main frame and the movable frame are divided. Further, the main frame and the movable frame may be formed in a rectangular frame shape like the additional frame.
[0048]
【The invention's effect】
As described above, the sofa / bed apparatus of the present invention can be constituted by the main frame and the movable frame, so that the configuration can be simplified, and the conversion from the bed to the sofa raises the movable frame. Since the movable leg member provided on the movable frame only needs to be engaged with the first leg member of the main frame, the conversion operation is also easy.
[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 in which a cushion body is removed from a sofa / bed apparatus.
FIG. 3 is an enlarged perspective view showing a connecting portion between a main frame and a movable frame.
4 is a cross-sectional view taken along the longitudinal direction of the frame shown in FIG.
5A is a side view of a floor member, and FIG. 5B is a plan view with a partial cross section.
FIG. 6 is a side view showing a state converted to a sofa.
FIG. 7 is a perspective view showing a first cushion body and a cover coupled 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 ... 2nd floor member 42 ... 3rd cushion body

Claims (4)

A main frame,
A first leg member provided across the width direction on the lower surface of one end of the main frame in a predetermined direction and having a lower end projecting outward from one end of the main frame;
A second leg member provided across the width direction at the other end of the main frame in a predetermined direction and supporting the main frame substantially horizontally with the first leg member;
A movable frame rotatably connected to one end in a predetermined direction of the main frame;
The upper end of the movable frame is pivotally connected to the lower surface of the movable frame so that the movable frame is supported substantially horizontally at the same height as the main frame, and when the movable frame is raised at a predetermined angle, the upper end is 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-use bed apparatus characterized by comprising: A floor member is provided on the main frame and the movable frame, a first cushion body is detachably placed on the floor member of the main frame, and a second cushion is placed on the floor member of the movable frame. The body is detachably mounted,
One end of a sheet-like 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 portion of the cover. The sofa / bed apparatus according to claim 1, wherein: An additional frame supported at a level substantially equal to the main frame by a pair of third leg members provided across the width direction on the lower surfaces of the one end and the other end in a predetermined direction, The leg member engages with a second leg member provided at the other end in the predetermined direction of the main frame when the additional frame is installed at the other end in the predetermined direction of the main frame, and the additional frame is engaged with the main frame. 2. 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.

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