JP2728160B2 - Bottom structure of bed with bending position adjusting means - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed having a curved bottom configured to be able to bend at an appropriate curvature. The present invention relates to a bottom structure in a bed provided with a bending position adjusting means, wherein a bending center position of the bending bottom is adjusted to a bending portion of the bed.

[0002]

2. Description of the Related Art In recent years, beds equipped with a bottom undulating mechanism have been widely used for both hospitals and homes. The bottom raising / lowering mechanism has a configuration in which a plurality of divided bottoms are simply rotatably fixed to a shaft, and these bottoms are raised and / or raised by a driving means, and each is adjusted to a desired inclination angle. It is. At that time, as you raise your back,
The space above the bottom near the connection point between the bottom corresponding to the back and the bottom corresponding to the waist becomes narrow, and the body of the user may be pressed. On the other hand, when the leg is raised, the connection point between the bottom corresponding to the knee and the bottom corresponding to the leg is lifted, and if this connection point does not match the back joint of the user, it is very difficult to use and lacks comfort. Becomes Therefore, the present applicant provides a curved bottom 3 in which subdivided strip-shaped bottoms are sequentially connected to a connection point, for example, a connection point between a knee bottom 1 supporting a thigh portion and a leg bottom 2 supporting a shin portion. The curved bottom 3 is arranged and supported by an up-and-down arm 5 via a roller 4 or the like.
Has already proposed a bed that can support the user without discomfort even if there is a slight deviation between the curved portion of the curved bottom 3 and the bent portion of the user's body by bending the curved portion at an appropriate curvature. (See FIG. 5).

[0003]

According to the curved bottom 3 having such a configuration, there is a slight shift in the flexion and extension of the body (the back joint of the knee) for a certain height difference from the standard height. But it can be supported without any discomfort. However, if the height of the user is extremely different from the standard height (for example, the elderly), the knee joint and the curved portion of the curved bottom 3 are significantly different, and the function of the curved bottom 3 may not be utilized. is there. The present invention has been proposed in view of such a background, and in a bed having a curved bottom configured to be able to bend at an appropriate curvature, a bed is provided with a means for adjusting a bending center position of the curved bottom, and a position is adjusted according to a user's physique. It is an object of the present invention to provide a bottom structure in a bed provided with a bending position adjusting means in which a bending center position of the bending bottom is adjusted to bend and stretch portions of different bodies.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a bed provided with a bottom undulating mechanism. A member and a second connecting member are provided so as to protrude from the bottom, and the first connecting member and the second connecting member are provided.
The two bottoms are rotatably connected via a connecting member, and a curved bottom is arranged at a projecting portion of the first and second connecting members of the bottoms, and the connecting portions of the first and second connecting members are respectively connected. An auxiliary member that contacts the curved bottom and supports the curved bottom is provided between the first and second connecting members when the bottom is flat. The auxiliary member is fixed between the first and second connecting members at different positions along the bottom longitudinal direction, and is movably connected to one of the first and second connecting members. The center of curvature of the curved bottom is changed by bringing the auxiliary member into contact with the curved bottom at a different position during the displacement.

[0005]

When the bottom is flat, the auxiliary member is in contact with the curved bottom, so that the space created between the vicinity of the connecting portion of the first and second connecting members separated from the curved bottom and the curved bottom is complemented. Can be. When the bottom is displaced to the maximum displacement state, the vicinity of the connection point of the first and second connection members separated from the curved bottom is brought to the position of the auxiliary member, and the curved bottom can be supported. . When the bottom is flat, if the auxiliary member is fixed between the first and second connecting members at different positions along the longitudinal direction of the bottom, the auxiliary member abuts at different positions on the curved bottom. As it is displaced, the curved bottom bends about the contact position.

[0006]

Next, a bottom structure of a bed provided with a bending position adjusting means according to the present invention will be described with reference to the accompanying drawings, taking an embodiment as an example. In FIG.
In the bed 10 provided with the bottom up-and-down mechanism, an attachment configuration of a knee bottom 13a for supporting a thigh and a leg bottom 13b for supporting a shin among the bottoms 13 is shown on a frame 12 on a base frame 11.

The knee bottom 13a for supporting the thigh and the leg bottom 13b for supporting the shin are respectively connected to the knee bottom 13a.
And a first connecting member 14 and a second connecting member 15 attached to the back side of the leg bottom 13b so as to be rotatably connected. The first and second connecting members 14, 1
Reference numeral 5 projects from the knee bottom 13a and the leg bottom 13b so that the knee bottom 13a and the leg bottom 13b are spaced apart from each other by a predetermined distance. Also, this knee bottom 13
An operating arm 14a, which is connected to an activation unit that constitutes a leg raising mechanism, protrudes from the first connecting member 14 in FIG.

The knee bottom 13a and the leg bottom 1
3b, a curved bottom 16 is placed so as to be attached to the first and second connecting members 14 and 15, and the first and second connecting members 14 and 15 are provided.
The connecting portions of the connecting members 14 and 15 each have a shape curved in a direction away from the curved bottom 16, and the bottom 1 is provided between the first and second connecting members 14 and 15.
3 When the plane is flat, an auxiliary member 17 having an arcuate cross section, which constitutes a curved center position adjusting means, which is in contact with the curved bottom 16 to support the curved bottom 16, is provided so as to be bridged. In the auxiliary member 17, one end is selectively rotatably attached to the adjustment holes 18a, 18b, 18c arranged in the first connecting member 14 at predetermined intervals in the bottom longitudinal direction, and the other end is connected to the second connection member 14. Slot 19 formed in connecting member 15
Movably connected to

In the first and second connecting members 14 and 15, the surface facing the curved bottom 16 is formed in a cylindrical outer peripheral shape, and when the bottom 13 is maximally displaced, the curved bottom 16 and
The first and second connecting members 14 and 15 are configured so that the outer peripheral surfaces of the cylinders and the auxiliary member 17 come into contact with the maximum contact area.

Here, the structure of the curved bottom 16 will be described.
For example, it has a plurality of strip-shaped members, and a connecting member configured to be connected between these strip-shaped members by a bellows-like bending member, and has a restricting means (not shown) for restricting deformation of the connecting member. It is constituted so that it may be curved. The curved bottom 16 may have another configuration.

The function and operation of the bottom structure of the bed provided with the bending position adjusting means configured as described above will be described. Auxiliary member 1 when bottom 13 is flat
7 is in contact with the curved bottom 16 so that the curved bottom 1
The space created between the curved bottom and the vicinity of the connection point between the first and second connection members 14 and 15 separated from the second member 6 can be complemented. Next, the bending center position of the bending bottom 16 is adjusted according to the user's physique. That is, the adjusting hole 18 in which one end of the auxiliary member 17 is arranged in the first connecting member 14.
a, 18b, and 18c are selectively rotatably mounted, and the other end is movably mounted in an elongated hole 19 formed in the second connecting member 15.

When the physique of the user, that is, the height, is high, one end of the auxiliary member 17 is connected to the first connecting member 14 so that the center of curvature of the curved bottom 16 is closer to the leg bottom 13b.
(See FIG. 2). When the height of the user is standard, one end of the auxiliary member 17 is attached to the adjustment hole 18b of the first connecting member 14 so that the center of the curved bottom 16 is located at the center of the curved bottom 16 ( (See FIG. 3). When the height of the user is short (for an elderly person or the like), one end of the auxiliary member 17 is adjusted to the adjustment hole in the first connection member 14 so that the center of curvature of the curved bottom 16 is located on the side of the knee bottom 13a. 18a (see FIG. 4).

As described above, when the knee bottom 13a and the leg bottom 13b are displaced to the maximum displacement state by the starting portion of the leg raising mechanism in a state where the bending center position of the curved bottom 16 is adjusted, First and second remote from
The vicinity of the connecting portion of the connecting members 14 and 15 is brought to the position of the auxiliary member 17, and the first and second connecting members 14 and 15 and the auxiliary member 17 support the curved bottom 16 with a larger contact area. can do. At this time, the bending center position of the bending bottom 16 can be shifted to the knee bottom 13a side or the leg bottom 13b side depending on the fixing position of the auxiliary member 17, so that the user's physique, that is, the position of the knee sole joint is set. The curved center position of the curved bottom 16 can be made to follow, and can be adapted to the user's physique over a wide range.

[0014]

As described above, according to the present invention, the curved bottom can be brought into a curved state with an appropriate curvature, and the auxiliary member is different between the first and second connecting members along the longitudinal direction of the bottom. By fixing to the position, the center of curvature of the curved bottom can be adjusted, depending on the difference in user's physique,
It is possible to sufficiently follow the displacement of the bent portion of the body, to eliminate the feeling of pressure on the body, and to provide high comfort.

[0015]

[Brief description of the drawings]

FIG. 1 is a schematic side elevational view showing one embodiment of a bottom structure of a bed provided with a bending position adjusting means according to the present invention.

FIG. 2 is a schematic side elevational view of a main part in a state where a bending center position of a bending bottom is adjusted by a bending position adjusting unit shown in FIG. 1;

FIG. 3 is a schematic side view of a main part in a state in which a bending center position of a bending bottom is adjusted by a bending position adjusting unit shown in FIG. 1;

FIG. 4 is a schematic side elevational view of a main part in a state in which the bending center position of the bending bottom is adjusted by the bending position adjusting means shown in FIG. 1;

FIG. 5 is a schematic side elevational view showing a main part of a bed having a bottom structure at present.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Bed 11 Base frame 12 Frame 13 Bottom 13a Knee bottom 13b Leg bottom 14 First connecting member 14a Working arm 15 Second connecting member 16 Curved bottom 17 Auxiliary member 18a, 18b, 18c Adjusting hole 19 Slot

Claims (1)

(57) [Claims] In a bed provided with a bottom raising and lowering mechanism, a first connecting member and a second connecting member are provided so as to protrude from the bottom on one surface side of an adjacent bottom among a plurality of divided bottoms, The two bottoms are rotatably connected via the first connection member and the second connection member,
Curved bottoms are arranged at the projecting portions of the first and second connecting members of the bottoms, and the connecting portions of the first and second connecting members are each curved in a direction away from the curved bottom, and the first and second connecting members are curved. , Between the second connecting member, when the bottom is flat, an auxiliary member that contacts the curved bottom and supports the curved bottom is disposed so as to span the same, and this auxiliary member is provided between the first and second connecting members. Along the bottom longitudinal direction, it is fixed at different positions and movably connected to one of the first and second connecting members, and when the bottom is displaced, the auxiliary member abuts at different positions on the curved bottom. The bottom structure of the bed provided with the bending position adjusting means, wherein the bending center position of the bending bottom is changed by causing the bending center to change.