JP2815059B2 - Bottom connection structure of bed with floor undulation mechanism - 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 provided with a floor raising / lowering mechanism, in which the back bottom and the waist bottom are connected so that the waist bottom moves when the back bottom is raised / lowered, or only the back bottom is raised / lowered. TECHNICAL FIELD The present invention relates to a bottom connection structure in a bed provided with a floor undulation mechanism, which can be connected so as to be connected to each other.

[0002]

2. Description of the Related Art The floor of a bed provided with a floor raising / lowering mechanism is usually provided with a back bottom corresponding to the back, a waist bottom corresponding to the waist position, a thigh, a leg bottom corresponding to the position of the leg, and the like. In many cases, it has a structure of being divided into two and connected to each other. In some cases, the back bottom and the waist bottom are connected so as to be interlockable, and when the back is raised, the waist bottom and the leg bottom are also interlockingly displaced to raise the legs. According to such a structure, since only one motor is required as a drive source, there is an advantage that a dedicated motor is not provided and the cost is advantageous.

[0003]

However, it is not always preferable to raise the legs at the same time as raising the back. Depending on the patient's illness or the situation, depending on the patient, the waist bottom may be flat when the back is raised. Sometimes a good state is desirable. The present invention has been proposed in view of the above background, by changing the connection position of the back bottom and the waist bottom, it is possible to be in an interlocking state, to move independently, or to switch the floor An object of the present invention is to provide a bottom connection structure in a bed provided with a partial undulation mechanism.

[0004]

In order to solve the above-mentioned problems, the present invention relates to a bed provided with a floor undulating mechanism, wherein a back bottom and a waist bottom are interlocked when the back bottom is raised and lowered. As described above, or selectively connected so that only the back bottom is displaced up and down. Further, the present invention provides a bed provided with a floor undulating mechanism, wherein a first protrusion is provided on the back bottom at a position where the divided back bottom and the waist bottom face each other, and the first protrusion is provided on the back bottom. A support arm for supporting the back bottom is rotatably fixed to the frame of the bed, and a second protruding piece is provided so as to be directed to the waist bottom. A third protruding piece is provided so as to overlap the second protruding piece, and the second protruding piece and the third protruding piece are
A first connection hole and a second connection hole are drilled, and the first connection hole and the second connection hole are selectively inserted into and detached from the first connection hole and the second connection hole by detachable connection means. The position of the hole is set on a coaxial line in a horizontal direction with a shaft fixing point between the support arm supporting the back bottom and the first projecting piece. Sa
Furthermore, the present invention relates to a bed provided with a floor undulating mechanism, in which a divided back bottom and a waist bottom are connected by a connection shaft, a projection is provided on the back bottom, and a bed frame is provided on the projection. A support arm for supporting the back bottom is rotatably fixed to the support arm, and the connection shaft includes a first hinge and a second hinge.
The first hinge is provided with a shaft attachment point on a horizontal coaxial line with a point where the support arm and the protruding piece are fixed, and a second hinge is provided at a position close to the waist bottom side. Providing a slide pipe slidable on the connecting shaft, and providing the slide pipe to the first hinge or the second hinge to restrain the first hinge or the second hinge, respectively. I do.

[0005]

When the center of rotation of the back bottom coincides with the connection point between the back bottom and the waist bottom, the waist bottom becomes irrelevant to the operation of the back bottom and does not interlock. On the other hand, if the center of rotation of the back bottom is shifted from the connection point between the back bottom and the waist bottom, the waist bottom moves in conjunction with the movement of the back bottom and simultaneously performs an up-and-down operation.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a bed connecting structure according to the present invention. FIG. 1 and FIG. 2 show the divided bottoms, that is, the connecting portion 3 between the back bottom 1 and the waist bottom 2 in the bed provided with the floor undulating mechanism. The connecting portion 3 is provided with a first protruding piece 4 at a position where the back bottom 1 and the waist bottom 2 are opposed to each other and at a position close to both end surfaces in the width direction of the back bottom 1 of the back bottom 1. 4 pieces, 1 bed bottom on the bed frame
A support arm 5 for supporting the shaft is rotatably fixed to the shaft, and a second protrusion 6 is provided at a position close to the first protrusion 4 so as to face the waist bottom 2. On the side of the waist bottom 2, a third protruding piece 7 is provided so as to overlap the second protruding piece 6 of the back bottom 1, and the second protruding piece 6 and the third protruding piece 7
The connection hole 8 and the second connection hole 9 are formed, and the connection hole 10 is selectively inserted into the first connection hole 8 and the second connection hole 9 by a detachable connection pin 10 to fix the shaft. is there. The position (A) of the first connection hole 8 in the second protruding piece 6 and the third protruding piece 7 is determined by the position at which the support arm 5 for supporting the back bottom 1 and the first protruding piece 4 are fixed to the shaft. Direction coaxial line, that is, on the bottom width direction coaxial line. On the other hand, the second connection hole 9
Position (B) is from the position (A) of the first connection hole 8,
It is in a position close to the waist bottom 2 side.

In the bottom connection structure having the above-described configuration, the connection pin 10 is connected to the first connection hole with the second protrusion 6 on the back bottom 1 and the third protrusion 7 on the waist bottom 2 facing each other. When the back bottom 1 and the waist bottom 2 are connected to each other by inserting the back bottom 1 and the waist bottom 2, the position (A) of the first connection hole 8, the position of the support arm 5 that supports the back bottom 1, and the location of the shaft stop between the first protrusion 4 and Is on the horizontal coaxial line, the waist bottom 2 is not related to the operation of the back bottom 1 and does not interlock, and only the back bottom 1 can be raised when raising the back (see FIG. 3). .
On the other hand, when the connecting pin 10 is inserted into the second connecting hole 9 of the second protruding piece 6 and the third protruding piece 7 to connect the back bottom 1 and the waist bottom 2, the supporting arm 5 supporting the back bottom 1 becomes Since the position where the shaft is fixed to the first projecting piece 4 and the position (B) of the second connection hole 9 are not on the coaxial line in the bottom width direction, when the back bottom 1 is raised, the back bottom 1 is Since the wake-up is performed with the axis of rotation of the supporting arm 5 to be supported and the first projecting piece 4 and the point B which is the position of the second connection hole 9 as the center of rotation, the third projecting piece 7 of the waist bottom 2 is A displacement force is received from the second protruding piece 6 on the bottom 1 side, and as a result, the waist bottom 2 rises in conjunction (see FIG. 4). In this manner, by simply inserting the connecting pin 10 selectively into the first connecting hole 8 or the second connecting hole 9 to connect the back bottom 1 and the waist bottom 2, the waist bottom 2 is removed from the operation of the back bottom 1. Since they can be operated independently or in conjunction with each other, it is possible to adjust the bottom up and down as desired by the patient in accordance with the use condition, and the usability is significantly improved.

Next, a bottom connection structure in a bed provided with a floor undulating mechanism according to the present invention will be described below with reference to the accompanying drawings, taking another embodiment. In this embodiment, the same reference numerals are given to components substantially similar to those constituting the above-described embodiment.
That is, as shown in FIG. 5, the connection structure in the present embodiment is such that the back bottom 1 and the waist bottom 2 are connected by a connection shaft 20 having two hinges. The first hinge 21 has a hinge 21 and a second hinge 22, and the first hinge 21 has a shaft attachment point between a support arm 5 for supporting the back bottom 1 and the first protrusion 4, and a bottom. It is on the coaxial line in the width direction. On the other hand, the second hinge 22
Is on the side close to the waist bottom 2. The connection shaft 20 is provided with a slide pipe 23 slidable on the connection shaft 20, and the slide pipe 23 is provided to the first hinge 21 or the second hinge 22, whereby the first hinge 21 or the second hinge 21 is provided, respectively. This is a structure for restraining the second hinge 22.

In the above-described bottom connection structure, when the slide pipe 23 is slid to cover the second hinge 22, the second hinge 22 is restrained and the first hinge 21 is exposed. 20 is the first hinge 2
1 is a rotation center axis. In this case, the support arm 5 for supporting the rotation center axis of the first hinge 21 and the back bottom 1 and the first protrusion 4
The waist bottom 2 is irrelevant to the operation of the back bottom 1 and does not interlock with each other, and only the back bottom 1 can be raised when raising the back. (See FIG. 5). On the other hand, slide pipe 2
When the first hinge 21 is slid to cover the first hinge 21, the second hinge 22 serves as a rotation center axis. Since the second hinge 22 is not on the horizontal coaxial line, when the back bottom 1 is raised, the waist bottom 2 receives a displacement force from the connection shaft 20 and rises in conjunction with each other (see FIG. 6). ).

Further, the bottom connecting structure in the bed provided with the floor undulating mechanism according to the present invention can be configured as follows. That is, although not shown, FIG.
Connecting shaft for connecting the back bottom 1 and the waist bottom 2 of the embodiment shown
At 20, the first hinge 21 and the second hinge 22
While the shaft attachment points are formed so as to be shifted from each other by 90 °,
And the first hinge 21 or the second hinge
A support for supporting the back bottom 1 with the shaft attachment point of the flange 22
In the direction of the rotation axis at the place where the arm 5 and the first protrusion 4 are stopped
It is also possible to adopt a configuration in which the match is fixed selectively.
Wear.

According to such a connecting structure, the connecting shaft 20
Is turned around the axis so that the first hinge 21 or the second hinge 2
2 and a supporting arm 5 for supporting the back bottom 1
The position coincides with the first protruding piece 4 in the direction of the rotation axis at the shaft stop.
By fixing the waist bottom 2 independently , the waist bottom 2 can be brought into an independent and interlocked state, so that the operation is easy and the structure is simple, so that the manufacturing cost can be suppressed.

[0012]

As described above, according to the present invention, the back bottom and the waist bottom can be independently moved or interlocked simply by changing the turning point of the connecting portion between the back bottom and the waist bottom. Since it is possible to switch to such a case, it is possible to cope with various patient's illness conditions and requests. Further, since the connection structure is simple, the manufacturing cost can be suppressed.

[0013]

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of a main part configuration showing an embodiment of a bottom connection structure in a bed provided with a floor undulating mechanism according to the present invention.

FIG. 2 is a schematic side view of the bottom connection structure shown in FIG. 1;

FIG. 3 is a schematic side explanatory view showing a state in which a back bottom and a waist bottom are connected to each other in an independent state in the bottom connection structure according to the present invention.

FIG. 4 is a schematic side explanatory view showing a state in which a back bottom and a waist bottom are connected to be able to interlock with each other in the bottom connection structure according to the present invention.

FIG. 5 is a perspective view showing a main part structure in which a back bottom and a waist bottom are connected to each other in an independent state in another embodiment of the bottom connection structure according to the present invention.

FIG. 6 is an explanatory perspective view of a main part configuration showing a state in which a back bottom and a waist bottom are connected in a mutually interlockable state in another embodiment of the bottom connection structure according to the present invention.

[Explanation of symbols] 1 back bottom 2 waist bottom 3
Connection part 4
First protruding piece 5 Support arm 6 Second protruding piece 7
Third protruding piece 8
1st connection hole 9 2nd
Connection hole 10 Connection pin 20
Connecting shaft 21
First hinge 22
Second hinge 23
Slide pipe

Claims (3)

(57) [Claims] 1. A bed provided with a floor undulating mechanism,
A floor raising / lowering mechanism, wherein the back bottom and the waist bottom are connected so that the waist bottom is interlocked when the back bottom is raised or lowered, or selectively connected so that only the back bottom is raised / displaced. Bottom connection structure in the bed provided with. 2. A bed provided with a floor undulating mechanism,
At a portion where the divided back bottom and the waist bottom face each other, a first protrusion is provided on the back bottom, and a support arm for supporting the back bottom on the bed frame is turned around the first protrusion. A second protruding piece is protruded from the waist bottom so as to face the waist bottom while a third protruding piece is protruded on the waist bottom side so as to overlap the second protruding piece on the back bottom. The first and second projections have a first connection hole,
A second connecting hole is formed, and the first connecting hole and the second connecting hole are selectively inserted into the first connecting hole and the second connecting hole by a detachable connecting means to fix the shaft. A bottom connection structure for a bed provided with a floor undulation mechanism, wherein the support portion for supporting the bottom and the first projecting piece are set on a horizontal coaxial line with a shaft fixing point. 3. A bed provided with a floor undulating mechanism,
The divided back bottom and waist bottom are connected by a connection shaft, and a protrusion is provided on the back bottom, and the support arm for supporting the back bottom on the bed frame is rotatably fixed to the protrusion. The connecting shaft has a first hinge and a second hinge, and a shaft attachment point of the first hinge is located on a horizontal coaxial line with a shaft fixing point between the support arm and the projecting piece. By providing a second hinge at a position close to the waist bottom side, providing a slide pipe slidable on the connection shaft, and bringing the slide pipe to the first hinge or the second hinge, respectively, A bottom connection structure for a bed provided with a floor undulating mechanism, wherein the hinge or the second hinge is restrained.