JPH08280747A - Bed provided with bed part elevating and lowering mechanism - Google Patents

Abstract

PURPOSE: To provide an at-home bed provided with a bed part elevating and lowering mechanism provided with casters for movement. CONSTITUTION: Elevating and declining leg members 3 rotatably mounted near both sides in a longitudinal direction of a frame 2 are provided with a driving mechanism for elevating and declining both elevating and declining leg members 3 in linkage, the tip parts of the elevating and declining leg members 3 are provided with leg pipes 11 rotated in the linkage along with the elevation and decline of the elevating and declining leg members 3 and leg caps 5 are freely rotatably attached to both tips of the leg pipes 11. Then, the casters 6 for the movement are attached to the leg pipes 11 so as to project downwards from the leg caps 5 at the leg pipes 11 when the elevating and declining leg members 3 are elevated to a limit angle. Thus, this bed is easily moved by the casters for the movement and the entire surface under the bed is easily cleaned.

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 floor raising / lowering mechanism provided with casters for movement so that the bed can be easily moved.

[0002]

2. Description of the Related Art In recent years, Japan is facing an aging society and the need for home-based care is becoming more and more prominent.
Therefore, the demand for home beds is increasing. In addition, even in such a bed for home use, as in the case of a normal hospital bed, it is becoming more multifunctional, and it is possible to start raising the back electrically.
A mechanism for raising the legs and adjusting the elevation of the frame has come to be provided. Moreover, since the bed for home use is used in a general household, it is desirable to use an assembled type bed.
This is because if it is an assembling type, it can be packed easily and the size of the packing body can be suppressed, so that it can be easily carried indoors. Therefore, the applicant has divided the frame into head-side and leg-side frames, and provided undulating leg members each having an upper end movably mounted along the frame. The side frame end portion side is connected with an auxiliary stay to regulate the movement of the undulating leg members, and female screw members are attached to the female screw members at locations close to the upper ends of these undulating leg members. Bed equipped with a floor lifting mechanism, in which a screw shaft is screwed into each of the screw shafts, and a drive mechanism for rotating the screw shaft is connected to one of the screw shafts, and the screw shafts are interlockably connected. Has already been proposed (Japanese Patent Application No. 5-247392). According to such a home bed, it is possible to simplify the mechanism and eliminate the need for tools at the time of assembly. In addition, the home bed has a feature that when the floor is raised, a large space is provided below the floor so that the bed can be easily cleaned.

[0003]

On the other hand, the home bed cannot be easily moved because it does not have casters for movement, and the ground contact surface between the undulating leg member and the floor surface is inevitably left behind. Cleaning requires the effort of shifting or lifting the home bed. The present invention has been proposed from such a background, and an object of the present invention is to provide a bed provided with a caster for movement and provided with a floor portion lifting mechanism.

[0004]

In order to solve the above-mentioned problems, the present invention provides undulating leg members mounted movably along the frame in the vicinity of both sides in the longitudinal direction of the frame in a bed. The intermediate part and both end sides of the frame are connected by an auxiliary stay to restrict and assist the movement of the undulating leg members, and a female screw member is mounted at a position close to the upper ends of the undulating leg members, A screw shaft is screwed into each of these female screws, a drive mechanism for rotating the screw shaft is connected to one of the screw shafts, and the screw shafts are linked so as to be interlocked with each other. A caster for movement that is interlocked with the undulating leg member is connected to the leg pipe at the base end, and when the floor is raised, the caster for movement is projected below the leg pipe to move the caster for movement. Characterized in that the movable bed by motor. In the above-mentioned configuration, the caster interlocking with the undulating leg member is connected to the leg pipe at the base end of the undulating leg member via the auxiliary strut, and when the floor part is raised to the highest position, the moving caster is The feature is that the maximum height of the floor can be adjusted by projecting it below the leg pipes.

[0005]

When the floor is in the low position, the moving casters are not in contact with the ground but are in a raised state. Here, when the drive mechanism is activated to rotate the screw shaft, the undulating leg members on both sides of the frame are interlocked with the auxiliary stays, and when the floor is raised, the undulating leg members are raised, while the casters for movement are moved. As the moving casters come in contact with the ground, and further project below the leg pipe at the base end of the undulating leg member, the bed is supported by the moving casters and the bed can be easily moved. Become.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A bed equipped with a floor raising / lowering mechanism according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a bed 1 having a floor lifting mechanism. The bed 1 has undulating leg members 3 mounted movably and rotatably along the frame 2 in the vicinity of both sides in the longitudinal direction of the frame 2, and an intermediate portion of the undulating leg members 3 and both ends of the frame 2. And a driving mechanism (to be described later) for interlocking the undulating leg members 3 with the undulating leg members 3 by restricting the operation of the undulating leg members 3 by connecting them with an auxiliary stay 4. Has been. Further, a leg pipe (described later) that is interlocked with the undulation of the undulating leg member 3 is provided at the tip of the undulating leg member 3, and a rotatable leg cap 5 is attached to both ends of the leg pipe. .
The caster 6 for movement is integrally attached to the leg pipe, for example, by welding. The transfer caster 6 is welded so as to protrude downward from the leg cap 5 of the leg pipe when the undulating leg member 3 is raised to the limit angle.

Here, the floor raising / lowering mechanism of the bed 1 is schematically shown in FIG. 2 and specifically described. That is, in the floor undulating mechanism, the drive mechanism for interlocking the undulating leg members 3 mounts the female screw member 7 at a position close to the upper end of the undulating leg member 3, and attaches the female screw members 7 to these female screw members 7. Each of the screw shafts 8 is screwed in to connect the motor 9 to one of the screw shafts 8, and the screw shafts 8 are connected by the interlocking rod 10 so as to be interlocked. A configuration in which a caster 6 for movement that is interlocked with the undulating leg member 3 is connected to the leg pipe 11 at the base end of the undulating leg member 3 and the caster 6 for movement is grounded when the floor portion is raised to the highest position. (See FIGS. 3 and 4). Further, in the bed 1 as described above, the headboard 12 and the footboard 13 can be detachably attached to the frame 2, and the bottom 14 is divided to raise the back and knees by a back raising mechanism and a knee raising mechanism (not shown). It is configured to do.

The operation of the floor raising / lowering mechanism in the bed 1 having the floor raising / lowering mechanism constructed as described above will be described. When the bottom 14 is in the low position, the moving caster 6 is in a lifted state without being grounded. Here, the motor 9
Is started to rotate the screw shaft 8 to interlock the undulating leg members 3 and the auxiliary stays 4 on both sides of the frame 2 and raise the frame 2, that is, the bottom 14, while the undulating leg members 3 are raised. , The moving casters 6 descend, the moving casters 6 come into contact with the ground, and further project downward from the leg pipe 11 at the base end portion of the undulating leg member 3,
The bed 1 is supported by the casters 6 for movement so that the bed 1 can be easily moved.

In the bed 1 having the floor raising / lowering mechanism described above, when the frame 2 is brought to the highest position, the moving casters 6 are grounded so that the bed 1 is moved in the width direction. When cleaning the lower part of the bed 1, it is possible to achieve the effect of cleaning the entire lower part of the bed 1.
In addition, an auxiliary leg 20 as shown in FIG. 5 may be provided for the purpose of further adjusting the elevation height of the bed 1. The purpose of further adjusting the lifting height of the bed 1 is to respond to the fact that when the caregiver is tall during care, the height of the bottom 14 that is easy for the caregiver to care for is higher. It comes from the plan. The auxiliary leg 20 includes an auxiliary column 21 integrally welded to the leg pipe 11 at a predetermined angle, and a wheel 22. In this case, the wheel 22 rotates in the longitudinal direction of the bed 1.

When the auxiliary legs 20 as described above are provided, the height of the bottom 14 can be raised by 50 mm as compared with the existing bed, and even if the height of the caregiver is large. The height of the bottom 14 that is easy to care for can be adjusted.

In the bed 1 provided with the floor raising / lowering mechanism described above, the wheel having no swing function has been described, but it is also possible to apply a swingable wheel.

[0012]

As described above, according to the present invention, by moving the floor to the highest position, the moving casters are projected downward from the fixed legs to move the bed. This made it easier to clean the entire surface under the bed. In addition, by increasing the maximum height of the floor with the auxiliary legs, it is possible to adjust the height so that even a caregiver with a large height can easily take care of it. Can be excellent.

[0013]

[Brief description of drawings]

FIG. 1 is an external perspective view showing an embodiment of a bed including a floor elevating mechanism according to the present invention.

FIG. 2 is a schematic mechanism explanatory view showing a configuration of a floor elevating mechanism of the bed shown in FIG.

FIG. 3 is an explanatory view of a main part enlargement mechanism of the bed shown in FIGS. 1 and 2.

FIG. 4 is an explanatory view of a main part configuration for explaining an action of a hoisting leg member and a moving caster in the bed floor elevating mechanism shown in FIG. 3.

FIG. 5 is an explanatory view of a main part configuration showing another example of the bed provided with the floor elevating mechanism according to the present invention.

[Explanation of symbols]

 1 bed 2 frame 3 undulating leg member 4 auxiliary stay 5 leg cap 6 moving caster 7 female screw member 8 screw shaft 9 motor 10 interlocking rod 11 leg pipe 12 headboard 13 footboard 14 bottom 20 auxiliary leg 21 auxiliary column 22 wheels

Claims (2)

[Claims] 1. A hoisting leg member mounted movably along the frame is provided near both sides of the bed in the longitudinal direction of the frame, and an intermediate portion of the hoisting leg member and both ends of the frame are connected by auxiliary stays. With a structure that assists the movement of the undulating leg members, a female screw member is installed at a position close to the upper end of each of these undulating leg members, and a screw shaft is screwed into each of these female screws. A drive mechanism for rotating the screw shaft is connected to the shaft, and the screw shafts are connected so as to be interlocked with each other, and a transfer caster interlocking with the undulating leg member is attached to the leg pipe at the base end of the undulating leg member. When the bed is lifted by connecting it, the moving casters are projected below the leg pipes so that the bed can be moved by the moving casters. Bed with mechanism. 2. The caster for movement when a caster interlocking with the undulating leg member is connected to a leg pipe at a base end portion of the undulating leg member via an auxiliary strut to raise the floor portion to the highest position. The bed provided with the floor part raising / lowering mechanism according to claim 1, characterized in that the maximum height of the floor part can be adjusted by projecting below the leg pipe.