JPH0975401A - Bottom structure of bed with curving position adjusting means - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bed whose bottom structure allows good fit to the body of a user irrespective of his size and shape of body by furnishing a means installed at the curved bottom of the bed so as to adjust the center position of curving. SOLUTION: A knee bottom 13a and a leg bottom 13b are rotatably coupled together through a first coupling member 14 and a second coupling member 15, and a curved bottom 16 is installed in parallel with the two coupling members 14, 15. Between these 14 and 15, an aid member 17 having an arch- form section is installed to support the curved bottom 16 in contact with it when the bed bottom 13 is positioned flat. One end of the aid member 17 is rotatably mounted selectively in adjusting holes 18a-18c provided in row in the first coupling member 14, while the other end is detained loosely with a long hole 19 formed in the second coupling member 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a bed having a curved bottom which can be curved with an appropriate curvature and is provided with a means for adjusting the center position of the curved bottom so that the body positionally varies depending on the physique of the user. The present invention relates to a bottom structure in a bed equipped with a bending position adjusting means, in which the bending center position of the bending bottom is aligned with the bending portion.

[0002]

2. Description of the Related Art In recent years, beds equipped with a bottom undulation mechanism have been widely available for both hospitals and homes. The bottom up-and-down mechanism has a structure in which a plurality of divided bottoms are simply rotatably and axially fixed, and the bottoms and legs are raised by a driving means to adjust the respective bottoms to desired inclination angles. Is. At that time, as you raise your back,
The upper space of the bottom near the joint between the bottom corresponding to the back and the bottom corresponding to the waist may be narrowed, and the body of the user may be pressed. On the other hand, by raising the leg, the joint between the bottom corresponding to the knee and the bottom corresponding to the leg is lifted up, and if this joint does not align with the knee joint of the user, it is very difficult to use and lacks comfort. Becomes Therefore, the applicant of the present invention has a curved bottom 3 in which the subdivided strip-shaped bottoms are sequentially connected to a connecting portion, for example, a knee bottom 1 supporting a thigh portion and a leg bottom 2 supporting a shin portion. The curved bottom 3 is arranged, and the curved bottom 3 is supported by the undulating arms 5 via rollers 4 and the like.
By proposing a bed with an appropriate curvature, even if there is some deviation between the curved portion of the curved bottom 3 and the bending portion of the user's body, a bed has already been proposed that can support the user without feeling discomfort. (See FIG. 5).

[0003]

According to the curved bottom 3 having such a structure, there is a slight deviation in the flexion / extension part of the body (the back joint of the knee) with respect to the difference in height from the standard height to some extent. However, I can support it without any discomfort. However, if the height of the user is extremely different from the standard height (for example, an old man), 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 fully utilized. is there. The present invention has been proposed from such a background, and in a bed having a curved bottom configured to be curved with an appropriate curvature, a means for adjusting the curved center position of the curved bottom is provided, and the bed is positioned according to the physique of the user. 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 the bending center position of the bending bottom is adjusted to the flexion / extension part of a physically different body.

[0004]

In order to solve the above-mentioned problems, the present invention provides a bed provided with a bottom undulation mechanism in which a first connection is made on one side of adjacent bottoms of a plurality of divided bottoms. The member and the second connecting member are provided so as to protrude from the bottom, and the first connecting member and the second connecting member are provided.
Both of the bottoms are rotatably connected via a connecting member, and curved bottoms are arranged at the protruding portions of the first and second connecting members of these bottoms, and the connecting portions of the first and second connecting members are respectively arranged. The curved member is curved in a direction away from the curved bottom, and an auxiliary member that abuts the curved bottom and supports the curved bottom is bridged 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 either the first or second connecting member. When the auxiliary member is brought into contact with the curved bottom at different positions during displacement, the bending center position of the curved bottom is changed.

[0005]

When the bottom is flat, since the auxiliary member is in contact with the curved bottom, the space generated between the curved bottom and the vicinity of the connecting portion of the first and second connecting members separated from the curved bottom is complemented. You can Then, when the bottom is displaced to the maximum displacement state, the vicinity of the connecting portion of the first and second connecting members separated from the curved bottom is brought to the position of the auxiliary member, and the curved bottom can be supported. . If the auxiliary member is fixed between the first and second connecting members at different positions along the bottom longitudinal direction when the bottom is flat, the auxiliary member comes into contact with different positions of the curved bottom. As it is displaced, the curved bottom bends with the abutting position as the bending center.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a bottom structure in a bed provided with a bending position adjusting means according to the present invention will be described below with reference to the accompanying drawings with reference to an embodiment. In Figure 1,
In a bed 10 equipped with a bottom undulation mechanism, a mounting structure of a knee bottom 13a supporting a thigh and a leg bottom 13b supporting a shin among the bottoms 13 is attached to a frame 12 on a base frame 11.

A knee bottom 13a for supporting the thigh and a leg bottom 13b for supporting the shin are respectively provided on the knee bottom 13a.
The first connecting member 14 and the second connecting member 15 provided on the back side of the leg bottom 13b are rotatably connected to each other. The first and second connecting members 14 and 1
Reference numeral 5 projects from the knee bottom 13a and the leg bottom 13b, respectively, so that the knee bottom 13a and the leg bottom 13b are spaced by a predetermined distance. Also, this knee bottom 13
An operating arm 14a, which is connected to a starting portion forming a leg raising mechanism, is provided to project from the first connecting member 14 in a.

Then, the knee bottom 13a and the leg bottom 1
A curved bottom 16 is placed between the first and second connecting members 14 and 15 between the first and second connecting members 3b and 3b.
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 flat, an auxiliary member 17 having a bow-shaped cross section, which constitutes the bending center position adjusting means and which abuts on the curved bottom 16 and supports the curved bottom 16, is arranged. In this auxiliary member 17, one end is selectively rotatably attached to the adjustment holes 18a, 18b, 18c arranged in the first connecting member 14 in the bottom longitudinal direction at predetermined intervals, while the other end is second. Oblong hole 19 formed in the connecting member 15
Is 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 is formed.
The cylindrical outer peripheral surfaces of the first and second connecting members 14 and 15 and the auxiliary member 17 are in contact with each other in the maximum contact area.

Now, the structure of the curved bottom 16 will be described. Although not shown, the curved bottom 16 is not shown.
For example, a plurality of strip-shaped members and a connecting member that bends between the strip-shaped members in a bellows shape are connected to each other, and a restricting unit (not shown) that restricts deformation of the connecting members is provided. It is configured to bend at. In addition to this, the curved bottom 16 may have another configuration.

The function and action of the bottom structure in the bed having the bending position adjusting means constructed as described above will be described. Auxiliary member 1 when bottom 13 is flat
7 is in contact with the curved bottom 16, the curved bottom 1
It is possible to supplement the space generated between the curved bottom and the vicinity of the connecting portion of the first and second connecting members 14 and 15 which are separated from 6. Next, the bending center position of the bending bottom 16 is adjusted according to the physique of the user. That is, one end portion of the auxiliary member 17 is arranged in the first connecting member 14 in the adjustment hole 18
While being selectively rotatably attached to a, 18b, and 18c, the other end is movably attached to 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 bending center position of the bending bottom 16 is closer to the leg bottom 13b side.
It is attached to the adjusting hole 18c in (see FIG. 2). Further, when the height of the user is standard, one end portion of the auxiliary member 17 is attached to the adjustment hole 18b in the first connecting member 14 so that the bending center position of the bending bottom 16 comes to the central position of the bending bottom 16. (See FIG. 3). Then, when the height of the user is short (for an elderly person or the like), one end portion of the auxiliary member 17 is adjusted in the first connecting member 14 so that the bending center position of the bending bottom 16 is on the knee bottom 13a side. 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 actuating portion of the leg raising mechanism with the bending center position of the bending bottom 16 being adjusted, the bending bottom 16 is bent. First and second separated from
The vicinity of the connecting portions of the connecting members 14 and 15 is brought to the position of the auxiliary member 17, and the curved bottom 16 is supported with a larger contact area by the first and second connecting members 14 and 15 and the auxiliary member 17. 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 bending center position is set to the user's physique, that is, the position of the knee joint. The curved center position of the curved bottom 16 can be made to follow, and it 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 curved with an appropriate curvature, and the auxiliary member is different between the first and second connecting members along the bottom longitudinal direction. By fixing it to the open position, you can adjust the center position of the curved bottom, and depending on the physical constitution of the user,
It is possible to sufficiently follow the deviation of the bending and stretching parts of the body, eliminate the feeling of pressure on the body, and bring high comfort.

[0015]

[Brief description of drawings]

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

FIG. 2 is a schematic side view of a main part in a state where the bending center position of the bending bottom is adjusted by the bending position adjusting means shown in FIG.

FIG. 3 is a schematic side view of an essential part in a state where the bending center position of the bending bottom is adjusted by the bending position adjusting means shown in FIG.

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

FIG. 5 is a schematic side view of an essential part showing a bed having a bottom structure in the existing state.

[Explanation of symbols]

 10 bed 11 base frame 12 frame 13 bottom 13a knee bottom 13b leg bottom 14 first connecting member 14a operating arm 15 second connecting member 16 curved bottom 17 auxiliary member 18a, 18b, 18c adjusting hole 19 long hole

Claims (1)

[Claims] 1. A bed provided with a bottom undulation mechanism, wherein among a plurality of divided bottoms, a first connecting member and a second connecting member are provided on one side of adjacent bottoms so as to project from the bottoms. The bottoms of the both are rotatably connected via the first connecting member and the second connecting member,
Curved bottoms are arranged at the protruding portions of the first and second connecting members of these bottoms, and the connecting portions of the first and second connecting members are curved so as to separate from the curved bottoms, respectively. An auxiliary member that abuts the curved bottom and supports the curved bottom when the bottom is flat is provided between the second connecting members, and the auxiliary member is disposed between the first and second connecting members. The auxiliary member is fixed to different positions along the longitudinal direction of the bottom and is movably connected to either the first or second connecting member so that the auxiliary member abuts at different positions of the curved bottom when the bottom is displaced. The bottom structure in the bed provided with the bending position adjusting means, characterized in that the bending center position of the bending bottom is changed.