JPH0375005A - Base plate elevating type bed - Google Patents

Abstract

PURPOSE:To elevate a base plate portion without a truck by supporting the base plate portion at a suitable height above the floor surface through supporting rods supported in a suitable turning state, inner wheels, rolling elements and outer wheels by an inter-locking driving mechanism. CONSTITUTION:When a crank handle 8 is turned to elongate an expansion driving rod 7, with a base plate portion 1 supported in a lower position, a left supporting rod 3a is turned counter-clockwise by a driving arm 6 and simultaneously a right supporting rod 3b is turned in the same direction by an interlocking driving mechanism comprising right and left interlocking arms 4a, 4b and an interlocking link 5. Right and left inner peripheral surface wheels 9a, 9b are also turned in the same direction as supporting rods 3a, 3b. As these inner wheels 9a, 9b are eccentric, the distances between the center of rotation, that is, the positions of the supporting rods 3a, 3b and points of outer wheels 11a, 11b, which are in contact with the floor surface 22 of a patient's room or the like are changed, so that the center of rotation is lifted up and the base plate portion 1 is lifted up through the supporting rods 3a, 3b and the supporting arms 2a, 2b. When the expansion driving rod 7 is shortened, the base plate portion 1 can be lowered by the reverse operation.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a bed with a floor plate that can be raised and lowered, and more particularly to a bed that can be raised and lowered with a floor plate without a trolley.

(Prior art and its problems) As a bed with a raised/lowered floor plate, for example,
As disclosed in Publication No. 36, etc., the floor plate is supported on a cart equipped with wheels via an elevating link so that it can be raised and lowered. With a type bed, it is difficult to configure a bed with a low floor height, and there are also problems such as the trolley getting in the way when trying to store equipment such as stool lockers in the space below the floorboard.

In order to solve this problem, various types of beds with floor plates that do not have a trolley have been proposed to date.

The object of the present invention is to provide a bed with an elevating floor plate that does not include such a trolley.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides support arms that form a pair in the width direction on the lower side of the floor plate portion corresponding to the head side and foot side of the bed. a support rod is rotatably supported by each pair of support arms, the support rod is interlocked and operable by an interlocking drive mechanism, and an inner ring is eccentrically supported at both ends of the support rod; An outer ring was rotatably supported on the outside of the inner ring via rolling elements to constitute a bed with a raised/lower floor plate.

In addition to this configuration, a large number of small wheels having rotating support shafts in the tangential direction are provided on the outer periphery of the outer ring.

(Function) In the above configuration, the floor plate part is adjusted to an appropriate height from the floor surface of the hospital room, etc. via the support rod, inner ring, rolling element, and outer ring, which are supported in an appropriate rotational state by the interlocking opening mechanism. Supported by The inner ring is fixed by the support rod, but the outer ring rotates with rolling elements relative to the inner ring, so the floor plate part
It can be moved in its longitudinal direction.

In addition, in the configuration in which a large number of small wheels having rotation support shafts in the tangential direction are provided on the outer periphery of the outer ring described above, the floor plate portion is rotated by the small wheels rotating around the rotation support shaft.
It can be moved in the width direction.

When the interlocking opening mechanism is operated to rotate the support rods on the head and foot sides of the floorboard in conjunction with each other, the inner ring rotates.
Since this inner ring is eccentrically supported on a support rod, the distance between the support rod and the outer ring that is in contact with the floor of the hospital room changes, and therefore the height of the floor plate portion from the floor surface changes. The height can be changed, and the floorboard section can thus be raised and lowered.

(Example) Embodiments of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 indicates a floor plate portion, and the floor plate portion 1
A pair of support arms 2a and 2b are provided in the width direction to protrude from the lower side of the bed corresponding to the head side a and the foot side, respectively.

The floor plate portion 1 is constituted by a plate body in the figure. In addition, although not shown in the drawings, the floorboard portion 1 may be constructed from a frame and a divided floorboard supported by the frame in an up-and-down manner. In the latter configuration, the support arms project from the frame. Support rods 3a, 3b are rotatably supported between the pair of support arms 2a, 2b, and the support rods 3a,
3b are interlocked and operable by an interlocking drive mechanism, the interlocking drive mechanism includes interlocking arms 4a, 4b protruding from the support rods 3a, 3b, and the interlocking arms 4.
Consisting of an interlocking link 5 fixed between a and 4b, a drive arm 6 protruding from one of the support rods 3a, and a telescopic drive rod 7 supported between the drive arm 6 and a suitable position on the floor plate part 1. are doing. This telescopic drive rod 7 is of a screw shaft type and is configured to be driven by a crank handle 8. In addition to the telescopic drive rod 7, a gas spring may also be used, although illustration is omitted.

Inner rings 9a are provided at both ends of the support rods 3a and 3b.

9b is eccentrically supported, and this inner ring 9a.

An outer ring 11a is provided on the outside of 9b via a rolling element 0.

11b is rotatably supported. The inner rings 9a and 9b are
The support shaft 12 protruding at an eccentric position is connected to the support rods 3a-, 3b.
It is supported by being fitted into fitting holes 13 formed at both ends. The rolling elements 10 can be balls or rollers, and any transfer support method for these may be used. In addition, Figures 1 and 2
In Figure (a), the balls as the rolling elements 10 are shown by solid lines on the inner rings 9a, 9b for convenience, but in reality they are formed on the inner rings 9a, 9b as shown in Figure 2(b). It is supported by a transfer groove 14. Also, Figures 1 and 2
In the configuration shown in the figure, the outer rings 11a and 11b are configured as simple rings, and in this configuration, the outer rings 11a,
llb can be simply rotated relative to the inner rings 9a, 9b, and therefore the floor plate portion 1 can only be moved in its longitudinal direction. In the example, a large number of small wheels 16 having rotation support shafts 15 in the tangential direction are provided on the outer peripheries of the outer rings 11a and 11b. For the outer rings 11a and llb, a support protrusion 17 is formed by cutting and raising a part of the annular body, and the rotating support shaft 15 passed through the shaft hole 18 of the small ring 16 is mounted between a pair of adjacent support protrusions F. As a result, the small wheel 16 is rotatably provided. The rotational support shaft 15 has a shaft end 20 that can be freely fitted into a fitting hole 19 formed in the support protrusion 17 against a shaft main body 21 having a larger diameter than the shaft end 20 to resist the elasticity of a built-in spring. The small wheel upper 6 is configured to be able to be shortened and extended to a predetermined length by the elasticity of the built-in spring, and to be able to be attached and detached as appropriate. In this configuration, the floor plate portion 1 can be moved in the width direction by the small wheel 16 rotating around its rotation support shaft 15.

However, the state shown by the solid line in FIG. 2(a), that is, the floor plate portion 1
is supported at a low position, and when the crank handle 8 is turned to extend the telescopic drive rod 7, the drive arm 6 rotates the support rod 3a on the left side in the figure counterclockwise, and at the same time The support rod 3 on the right side of the figure is
b also rotates in the same direction, and the left and right inner rings 9a and 9b also rotate in the same direction as the support rod 3.
It rotates in the same direction as a and 3b. These inner rings 9a.

Since 9b is eccentric, its center of rotation, that is, the support rod 3a
, 3b position and the outer ring 11 in contact with the floor surface 22 of a hospital room, etc.
The distance between points a and llb changes, and therefore, as shown by the two-dot chain line in the figure, the center of rotation rises, and the support rods 3a,
3b, the floor plate portion l rises via the support arms 2a and 2b.

In FIG. 1, for convenience, the floor surface 22 is shown in a lowered state. Then, when the telescopic drive rod 7 is shortened,
The floor plate part 1 can be lowered by the operation in reverse to the above.

As mentioned above, the specific configuration of the floorboard portion l is arbitrary, but
If this is constructed from an acrylic board, a see-through plywood board, or the like, it will also be possible to see through X-rays since there is no cart.

(Effects of the Invention) As described above, the present invention provides a pair of support arms protruding in the width direction on the lower side of the floor plate portion corresponding to the head side and the foot side of the bed. A support rod is rotatably supported by the arm, the support rod is interlocked and operable by an interlocking active mechanism, an inner ring is eccentrically supported at both ends of the support rod, and rolling elements are provided on the outside of the inner ring. Since the floor plate elevating type bed is constructed by rotatably supporting the outer ring through the belt, the floor plate portion can be raised and lowered without using a trolley, and a floor plate elevating type bed with a low floor height can be easily constructed. In addition, there is an effect that equipment such as stool lockers can be easily stored in the space below the floorboard section.

Further, the present invention provides a structure in which the bed can be moved at least in the longitudinal direction using the components of the elevating mechanism, and furthermore, a large number of small wheels are provided on the outer periphery of the outer ring, each having a rotating support shaft in the tangential direction thereof. This has the advantage that the movement direction can be both the longitudinal direction and the width direction of the bed.

[Brief explanation of drawings]

1 and 2(a) are an overall explanatory perspective view and an explanatory side view, respectively, corresponding to an embodiment of the present invention, and FIG. 2(b)
) is an explanatory cross-sectional view of the main part of FIG. They are a perspective view and an explanatory side view of main parts. Above the symbols: Floor plate portion, 2a, 2b...Support arm, 3a. 3b...support rod, 4a, 4b...interlocking arm, 5...
Interlocking link, 6... Drive arm, 7... Telescopic drive rod, 8
...Crank handle, 9a, 9b...Inner ring, 10
...Rolling element, 11a, llb...Outer ring, 12...
Support shaft, 13... Fitting hole, 14... Rolling groove, 15.
...Rotation support shaft, work 6...small ring, 17...support protrusion, 18...shaft hole, 19...fitting hole, 20...shaft end, 21...shaft Main body, 22...floor surface.

Claims (5)

[Claims] (1) A pair of support arms is provided in the width direction to protrude from the lower side of the floor plate corresponding to the head and foot sides of the bed, and the support rod can be rotated by each pair of support arms. The supporting rods were interlocked and operable by an interlocking drive mechanism, an inner ring was eccentrically supported at both ends of the supporting rod, and an outer ring was rotatably supported on the outside of the inner ring via rolling elements. A floor plate elevating bed characterized by (2) A floor plate elevating bed characterized in that a large number of small wheels having rotational support shafts in the tangential direction of the outer ring are provided on the outer periphery of the outer ring as described in item 1. (3) The floorboard section described in item 1 is a floorboard elevating bed characterized by being constructed of a plate body. (4) A floorboard elevating bed characterized in that the floorboard portion according to item 1 is constituted by a frame and a divided floorboard supported on the frame so as to be able to rise and fall. (5) The interlocking drive mechanism according to item 1 includes: an interlocking arm protruding from a support rod; an interlocking link fixed between the interlocking arms; a drive arm protruding from any of the support rods; A bed with an elevating floor plate, characterized in that it is composed of an arm and a telescopic drive rod supported between an appropriate position of the floor plate portion.