JPH0738818B2 - Cushion device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushion device in which a movable cushion is rotatably connected to a fixed cushion body.

[0002]

2. Description of the Related Art For example, in a cushion device such as a sofa bed or a back-raised bed, a movable cushion body is connected to a fixed cushion body by a hinge mechanism so as to be held at a predetermined rotation angle. In such a cushion device, the connection structure between the fixed cushion body and the movable cushion body poses a problem.

That is, because of the structure in which the movable cushion body is rotatably connected to the fixed cushion body, the movable cushion body and the fixed cushion body are usually separate structures. However, according to such a structure, it is unavoidable that a gap is generated between these cushion bodies, and thus, for example, in the case of a sofa-bed, one plane (bed surface) is formed when the sofa is converted into a bed. A gap is formed at the joint between the fixed cushion body and the movable cushion body. Therefore, the above-mentioned gap may cause deterioration of the cushioning performance and appearance of the bed surface.

In order to solve such a problem, the frame of the fixed cushion body and the frame of the movable cushion body, which are connected by a hinge mechanism, are covered with one large sheet-like elastic material. So, a sofa-bed has been developed that eliminates the joint. According to such a configuration, since the joint portion is not formed in the elastic material, it is possible to improve the cushioning performance when using it as a bed.

However, when the bed is converted into a sofa, the portion corresponding to the joint portion of the pair of frames of the sheet-like elastic material is strongly bent.
There is a case where the bent portion floats up from the frame and deteriorates the performance and appearance of the sofa, or the bent portion of the elastic material is damaged early, and further, in order to strongly compress the elastic material, Since a large operating force is required, the operability may decrease.

[0006]

As described above, in the conventional cushion device provided with the fixed cushion body and the movable cushion body, if the cushion bodies are separated from each other, when these cushion bodies are used as flat surfaces, they are used. , A joint portion is formed between the cushion bodies and the cushion performance of the plane is deteriorated. Also, when the frame of each cushion body is covered with one elastic material, when the movable cushion body is bent and used. In addition, the bent part of the elastic material rises,
It was strongly compressed and damaged early.

The present invention has been made based on the above circumstances, and its purpose is to use the fixed cushion body and the movable cushion body in a flat plane or to bend the movable cushion body. Even so, it is an object of the present invention to provide a cushioning device that exhibits good cushioning performance and does not cause deterioration of appearance and early damage of the elastic material.

[0008]

In order to solve the above problems, the present invention has a fixed frame, which is sequentially covered with a first elastic material and a first exterior material. And a fixed cushion body having a slope formed on at least one side surface, and the fixed frame on the slope.
The movable frame has one end connected to the end of the frame by a hinge mechanism so as to be held at a predetermined rotation angle, and is bent in a substantially U shape to cover the upper and lower surfaces of the movable frame and one end. Is connected to the upper part of the slope in the height direction and the other end is connected to the lower part, and a movable cushion body composed of a flat plate-shaped second elastic material and a second exterior material covering the second elastic material. It is characterized by having done.

[0009]

According to this structure, since the first elastic material of the fixed cushion body and one end of the second elastic material of the movable cushion body are connected to each other, the movable cushion body is laid down on one plane. When forming the movable cushion body, the second elastic material moves relative to the movable frame when the movable cushion body is erected and used. The second elastic material is not strongly compressed.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 6 show a first embodiment of the present invention. FIG. 6 shows a state in which the first sofa bed 1 and the second sofa bed 2, each of which is a cushion device, are combined as described later. Each sofa-bed 1,
Although No. 2 has a different external shape, the internal structure is almost the same, so only one will be described. In other words, each sofa-bed 1, 2 has a fixed cushion body 3 and a movable cushion body 4 which are rotatably connected to each other, as shown in FIGS. The fixed cushion body 3 includes a fixed frame 10 formed by bending a pipe material into a frame shape. On the upper and lower surfaces of the fixed frame 10, a hard fixed-side hard elastic material 3a such as chip urethane is joined and fixed via a cloth (not shown). An upper elastic material 5a and a lower elastic material 5b, which are softer than this, are joined and fixed to the upper surface and the lower surface of the fixed-side hard elastic material 3a, respectively.

A bottom plate 6 is joined to the lower surface of the lower elastic member 5b. Further, the front side elastic member 5 having a trapezoidal cross section is formed on the front side surfaces of the upper elastic member 5a and the lower elastic member 5b.
c is joined and fixed, and the rear side surface is formed as an inclined surface 7 which is inclined toward the front surface side as it goes upward.
The elastic members 5a, 5b, 5c and the bottom plate 6 are covered with the first exterior material 8.

A first arm 11 of a hinge mechanism 9 is connected to both ends of the fixed frame 10 which are located at a portion corresponding to the slope 7. This hinge mechanism 9
Both ends of a movable frame 13 are connected to the second arm 12. The second arm 12 is the first arm.
It is rotatable with respect to the frame 11 and can be held at an arbitrary rotation angle. That is, the movable frame 13 is a fixed frame.
It can be held in a horizontal state with respect to the frame 10 and at a predetermined rotation angle.

In this embodiment, the fixed-side hard elastic material 3a is used.
The upper and lower elastic members 5a and 5b form a first elastic member, and the fixed-side hard elastic member 3a and the upper and lower elastic members 5 are formed.
The first elastic material may be formed by integrally molding an elastic material having a predetermined hardness without separately forming a and b. Further, in order to support the fixed frame 10 on the lower surface side, the elastic material is not provided on the lower surface side of the fixed frame 10 but only on the upper surface side.
A pedestal made of wood or the like may be provided, and the pedestal and the elastic material on the upper surface side may constitute the fixed cushion body. In that case, the inclined surface 7 may be formed over the side surfaces of both the mount and the elastic material provided on the upper surface side of the fixed frame 10.

A relatively hard movable elastic material 14 such as chip urethane is joined to the upper and lower surfaces of the movable frame 13 through a cloth (not shown). The movable-side hard elastic material 14 is covered with an inner exterior material 15, and at least one end portion located on the free end side of the movable frame 13 is formed into a curved surface 14a.

The upper and lower surfaces of the movable-side hard elastic material 14 are covered with a soft bending elastic material 16. The bending elastic material 16 is formed in a flat plate shape, and is accommodated in a second exterior material 17 sewn in a bag shape. Then, the movable frame
The upper and lower surfaces of the drum 13, that is, the upper and lower surfaces of the movable-side hard elastic material 14, are bent in a substantially U shape, and one end is connected to the upper portion of the slope 7 in the height direction, and the other end is connected to the lower portion. Is provided. In this embodiment, one end of the movable-side elastic member 14 is detachably connected to the first outer cover 8 that covers the slope 7 by the fastener 18, and the other end of the movable outer end 14 is the other end. The second exterior material 17 is sewn and connected to the first exterior material 8.

The first exterior material 8 and the second exterior material 17
May be integrated with each other instead of being separate bodies. In that case, both end surfaces of the bending elastic material 16 may be directly adhered and fixed to the slope 7 formed by the soft elastic materials 5a and 5b with an adhesive.

In the above structure, when the movable frame 13 is rotated, the bending elastic material 16 moves relatively to the movable-side hard elastic material 14 provided on the movable frame 13. That is, when the movable-side hard elastic material 14 is erected from the standing state as shown by the solid line in FIG. 1 substantially horizontally as shown by the chain line, the lower surface of the movable-side hard elastic material 14 of the bent elastic material 16 is described. When the portion located on the upper side moves relatively to the upper surface side and is rotated in the opposite direction from the horizontal state, the portion located on the upper surface side of the movable side hard elastic material 14 relatively moves to the lower surface side. Will move.

The width dimension of the first sofa bed 1 and the second sofa bed 2 is such that the first sofa bed 1 is larger than the second sofa bed 2 as shown in FIGS. Is also formed large. The fixed cushion body 3 of the first sofa-bed 1 has a convex portion 21 having an arcuate outer periphery on one front end side thereof and a front end side of the convex portion 21 of 45 degrees with respect to the front end face. Angled first abutment surface 22
Are formed.

The fixed cushion body 3 of the second sofa-bed 2 is formed with a concave portion 23 having an arcuate surface whose inner circumference corresponds to the convex portion 21 on one front end side thereof. 4 on the front end side of the recess 23 with respect to the front end face.
A second contact surface 24 is formed at an angle of 5 degrees.

First Sofa-Bed 1 and Second Sofa-
The bed 2 is connected by engaging the convex portion 21 and the concave portion 23 rotatably. On the bottom plate 6 of the fixed cushion body 3 of the first sofa-bed 1, as shown in FIG. 3, a bearing 25 is provided at a position corresponding to the center of the convex portion 21.
Is provided. An upper side of a support shaft 26 is rotatably inserted into the bearing 25. The lower end surface of the support shaft 26 is connected to one end of a belt-shaped connecting plate 27. The other end of the connecting plate 27 is connected and fixed to the bottom plate 6 provided on the fixed cushion body 3 of the second sofa-bed 2. Thereby, the first sofa-bed 1 is provided with the convex portion 2
1 is guided by the recess 23 and the support shaft 26
It can be rotated around the fulcrum.

According to the cushion device having the above structure, the movable cushion bodies 4 of the first and second sofa-beds 1 and 2 are arranged.
And the first sofa-bed 1 is not rotated with respect to the second sofa-bed 2 as shown in FIG. 4, that is, when the sofas are arranged in a line, -Fixed cushion body 3 for beds 1 and 2
The plane formed by the movable cushion body 4 and the movable cushion body 4 can be used as a bed surface.

As described above, when the cushion device is used as a bed, the upper elastic member 5a of the fixed cushion member 3 of each sofa-bed 1, 2 and the bending elastic member 16 of the movable cushion member 4 are connected to each other. Even if the movable cushion body 4 is laid down substantially horizontally, no gap is created between the movable cushion body 4 and the fixed cushion body 3. Therefore, the fixed cushion body 3 and the movable cushion body 4 can form a good bed surface without a gap.

When the cushion device is used as a sofa, the movable cushion bodies 4 of the first and second sofa beds 1 and 2 are rotated in the standing direction. That is, the movable frame 13 provided on the fixed frame 10 of the fixed cushion body 3 is rotated in the upward direction. Movable frame 1
3 is raised, the bending elastic material 16 provided so as to cover the upper and lower surfaces is moved from the upper surface side of the movable frame 13 shown by the arrow A in FIG. 1 along the curved surface 14a of the movable elastic material 14. It moves relative to the direction of the lower surface.

As a result, since the bending elastic member 16 is not strongly bent as the movable frame 13 rotates, it may rise from the movable frame 13 or be crushed and damaged. Is prevented. for that reason,
The performance as a sofa is not deteriorated and the appearance is not damaged. Moreover, at that time, the bending elastic material 1 is used.
Since the side surface of the fixed cushion body 3 to which one end of 6 is connected is formed as the inclined surface 7, it is possible to reduce the degree to which one end of the bending elastic material 16 is compressed. Therefore, also by this, it is possible to prevent the bending elastic member 16 from rising from the movable frame 13 or being excessively compressed.

When used as a sofa, the first
The sofa-1 can be rotated about the support shaft 26 with respect to the second sofa-2. That is, from the state in which the first sofa-1 is aligned with the second sofa-2 in a line, the first contact surface 22 of the first sofa-1 is the second sofa as shown by the chain line in FIG. -2 can be freely rotated to a position where it abuts the second abutting surface 24, that is, in a range of 0 to 90 degrees. Moreover, if the first sofa-1 is rotated by 90 degrees, the first sofa-1 and the second sofa-2 can be arranged in a substantially L-shape. Therefore, not only can it be used in various forms depending on the rotation angle of the first sofa-1, but can also be used as corner furniture if it is arranged in an L shape, for example.

7 and 8 show another embodiment of the present invention. FIG. 7 shows a second embodiment of the present invention applied to a bed apparatus.
An example of is shown. In the figure, 31 is the headboard 3 on one end side.
2 is an upright bed frame. A fixed cushion body 33 is installed on one end side of the upper surface of the bed frame 31, and a movable cushion body 34 is installed on the head board 32 side which is the other end side. Each cushion body 33, 3
Although not described in detail, the reference numeral 4 has substantially the same structure as the cushion bodies 3 and 4 of the sofa bed according to the first embodiment. In this embodiment, the movable frame 35 of the movable cushion body 34 is not provided with the hard movable elastic member 14 unlike the sofa bed, and the roller 35a extending over the entire width in the width direction is provided at the tip portion. It is rotatably installed. The movable frame 35 is attached to the exterior material 3
The upper and lower surfaces are covered with the bending elastic material 37 covered with 6. One end and the other end of the bending elastic material 37 are inclined surfaces 38 formed on one end surface of the fixed cushion body 33.
Is connected to the upper and lower parts of.

According to this structure, if the movable cushion body 34 is laid down substantially horizontally, the plane formed by the movable cushion body 34 and the fixed cushion body 33 can be used as a bed surface. . At this time,
Since there is no gap between the fixed cushion body 33 and the movable cushion body 34, it can be used as a good bed surface.

When the movable cushion body 34 is erected at a predetermined angle, it can be used as a back-raising bed in which the user can easily take the posture of raising the upper body. When used as a back-raising bed, the bending elastic member 37 of the movable cushion body 34 moves relatively to the movable frame 35, so that it does not rise or is strongly compressed. Moreover, the roller 3 is attached to the tip of the movable frame 35.
Since 5a is rotatably provided, the relative movement of the bending elastic member 37 when the movable frame 35 is rotated can be smoothly performed.

FIG. 8 shows an example in which the present invention is applied to a sofa. In the figure, reference numeral 41 is a flat fixed cushion body. Slopes 42 are formed on both side surfaces of the fixed cushion body 41 in the width direction. Each of the slopes 42 is provided with a movable cushion body 43 having the same structure as the structure shown in the first embodiment.

Therefore, the pair of movable cushion bodies 43
8 is erected from the state shown by the solid line in FIG. 8 as shown by the chain line, these movable cushion bodies 43 can be used as armrests.

[0032]

As described above, according to the present invention, in the cushion device including the fixed cushion body and the movable cushion body, the movable cushion body is bent into a movable frame and a substantially U shape, and the movable frame is formed. And a flat second elastic member having one end connected to the upper portion in the height direction of the inclined surface formed on the side surface of the fixed cushion body and the other end connected to the lower portion while covering the upper and lower surfaces of the frame.

Therefore, when the movable frame is rotated in order to undulate the movable cushion body, the second elastic material moves relative to the fixed frame in response to the rotation. However, since it is possible to prevent the movable frame from being over-compressed due to its rotation, for example, when the movable frame is applied to a sofa bed, the second elastic material is excessively compressed when used as a sofa. You can prevent it from rising and getting prematurely damaged. Further, since the first elastic material of the fixed cushion body and the second elastic material of the movable cushion body are connected to each other, when the movable frame is used substantially horizontally as a bed, a gap is formed on the bed surface. It can be used as a good bed surface without causing

[Brief description of drawings]

FIG. 1 is a side view showing a state of a sofa according to a first embodiment of the present invention.

FIG. 2 is a side sectional view of the same.

FIG. 3 is a front view of the fixed cushion body in section.

FIG. 4 is a plan view similarly showing the internal structure by a broken line.

FIG. 5 is a plan view showing a state in which one of the sofa beds is rotated by a chain line.

FIG. 6 is a perspective view showing a sofa state.

FIG. 7 is a side view showing a state in which the bed is applied to a bed showing a second embodiment of the present invention.

FIG. 8 is a side view showing a state in which the sofa is applied to a third embodiment of the present invention.

[Explanation of symbols]

3 ... Fixed cushion body, 4 ... Movable cushion body, 3a ...
Fixed-side hard elastic material (first elastic material), 5a, 5b ... Hard elastic material (first elastic material), 7 ... Slope, 8 ... First exterior material, 9 ... Hinge mechanism, 10 ... Fixed frame Frame, 13 ... Movable frame, 16 ... Bending elastic material (second elastic material), 17 ...
Second exterior land.

Claims (1)

[Claims] 1. A fixed cushion body having a fixed frame, wherein the fixed frame is sequentially covered with a first elastic material and a first exterior material, and a slope is formed on at least one side surface. , The fixed frame on the slope
The movable frame has one end connected to the end of the frame by a hinge mechanism so as to be held at a predetermined rotation angle, and is bent in a substantially U shape to cover the upper and lower surfaces of the movable frame and one end. Is connected to the upper part of the slope in the height direction and the other end is connected to the lower part, and a movable cushion body composed of a flat plate-shaped second elastic material and a second exterior material covering the second elastic material. A cushion device characterized by the above.