JP2746295B2 - Bed with floor lifting 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 elevating mechanism provided with a moving caster so as to be easily moved.

[0002]

2. Description of the Related Art In recent years, Japan is facing an aging society, and the necessity of home care has become increasingly prominent.
As a result, demand for home beds has increased. Also, in such home beds, multifunctionalization has progressed, like a normal hospital bed, and the backrest has been started by electric power,
A mechanism for adjusting the lifting of the legs and the elevation of the frame has been provided. Since the home bed is used in ordinary households, it is desirable to use an assembling bed.
This is because the assembled type can be easily packed and the size of the package can be reduced, so that it can be easily carried indoors. In view of this, the present applicant has divided the frame into a head-side frame and a leg-side frame, and provided an up-and-down leg member having an upper end movably mounted along the frame. The end of the side frame is connected by an auxiliary stay to regulate and assist the operation of the undulating leg member.A female screw member is attached to a position close to the upper end of the undulating leg member, and the female screw is attached to the female screw. A bed provided with a floor elevating mechanism in which a screw shaft is screwed into each of the screw shafts and a driving mechanism for rotating the screw shaft is connected to one of the screw shafts, and the screw shafts are connected so as to be interlockable. Has already been proposed (Japanese Patent Application No. 5-247392). According to the home bed, the mechanism can be simplified, and no tools are required at the time of assembly. Further, the home bed has a feature that, when the floor is raised, a large space is provided below the floor, so that it is easy to clean.

[0003]

On the other hand, the bed at home cannot be easily moved because it does not have a caster for movement, and the grounding surface between the up-and-down leg member and the floor surface remains. Cleaning requires the effort of shifting and lifting the home bed. The present invention has been proposed in view of such a background, and an object of the present invention is to provide a bed provided with a floor elevating mechanism in which a moving caster is provided.

[0004]

In order to solve the above-mentioned problems, the present invention provides a pair of up-and-down lifting members rotatably mounted near both sides in the longitudinal direction of a frame of a bed.
Connect the middle part of these up-and-down leg members to both ends of the frame.
And an auxiliary stay that regulates the movement of the
And these two undulating leg members and auxiliary stays are linked.
A bed with a floor elevation mechanism with a drive mechanism
At the base end of the undulating leg member,
Attach the leg pipe that rotates in conjunction with the undulation,
Rotate the leg caps that touch the floor to both ends of the leg pipe
Mounted freely and integrated casters for movement with the leg pipe
The drive mechanism is activated to start up
By raising the lower leg member, the moving caster is
Extend the bed by projecting below the cap and touching the ground.
It is characterized in that it is movably supported by a moving caster . In the above configuration, the leg pipe at the base end of the undulating leg member is interlocked with the undulating leg member via the auxiliary support.
Connect the moving casters and operate the drive mechanism to start
By raising the lower leg member, the moving casters are projected below the leg pipes so that the maximum height of the floor can be adjusted.

[0005]

When the floor is in the low position, the moving casters are not grounded and are lifted. Where the drive
Start up the gantry and move the up and down leg members and
When the floor is raised, the undulating leg member is raised, while the moving caster is lowered, the moving caster is grounded, and the leg pipe at the base end of the undulating leg member is further moved. Since the bed protrudes downward, the bed is supported by the moving casters, and the bed can be easily moved.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a bed provided with a floor elevating mechanism according to the present invention. FIG. 1 shows a bed 1 provided with a floor lifting mechanism. The bed 1 has, in the vicinity of both sides in the longitudinal direction of the frame 2, an up-and-down leg member 3 movably and rotatably mounted along the frame 2, and an intermediate portion of the up-and-down leg member 3 and both ends of the frame 2. The upper and lower portions are connected by an auxiliary stay 4 so as to regulate and assist the operation of the up-and-down leg member 3. Have been. In addition, a leg pipe (described later) that rotates in conjunction with the up and down movement of the up and down leg member 3 is provided at the tip of the up and down leg member 3, and a rotatable leg cap 5 is attached to both ends of the leg pipe. .
A moving caster 6 is integrally attached to the leg pipe, for example, by welding. The moving caster 6 is welded so as to project below the leg cap 5 of the leg pipe when the undulating leg member 3 is raised to the limit angle.

[0007] Here, the mechanism for raising and lowering the floor of the bed 1 is schematically shown in FIG. 2 and will be specifically described. That is, in the floor undulating mechanism, the drive mechanism for interlockingly raising and lowering the undulating leg member 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 member 7 to the female screw member 7. Each of the screw shafts 8 is screwed in, a motor 9 is connected to one of the screw shafts 8, and these screw shafts 8 are connected by an interlocking rod 10 so as to be interlockable. A structure in which a moving caster 6 linked to the undulating leg member 3 is connected to the leg pipe 11 at the base end of the undulating leg member 3, and the moving caster 6 is grounded when the floor 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 are detachably attached to the frame 2 and the bottom 14 is divided, and the back-raising mechanism and the knee-raising mechanism (not shown) are used to raise the back and raise the knee. Configuration.

The operation of the bed lifting mechanism in the bed 1 having the floor lifting mechanism having the above structure will be described. When the bottom 14 is at the low position, the moving casters 6 are not grounded but are lifted. Here, the motor 9
Is activated to rotate the screw shaft 8 to link the undulating leg members 3 on both sides of the frame 2 and the auxiliary stay 4 to raise the frame 2, that is, the bottom 14, so that the undulating leg members 3 are raised. Since the moving caster 6 descends and the moving caster 6 comes into contact with the ground and further projects downward from the leg pipe 11 at the base end of the undulating leg member 3,
The bed 1 is supported by the moving casters 6 so that the bed 1 can be easily moved.

In the bed 1 provided with the floor elevating mechanism described above, when the frame 2 is brought to the highest position, the moving casters 6 are grounded, and the bed 1 is moved in the width direction. Therefore, when cleaning under the bed 1, an effect of cleaning the entire surface under the bed 1 can be obtained.
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 described above. The purpose of further adjusting the elevating height of the bed 1 is to respond to the requirement that the height of the bottom 14 that is easy for the caregiver to care for is increased when the caregiver is tall. 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 turning direction of the wheels 22 is the longitudinal direction of the bed 1.

When the auxiliary leg 20 as described above is provided, the height of the bottom 14 can be raised by 50 mm as compared with the current bed, and the height of the caregiver can be increased accordingly. The height of the bottom 14 can be adjusted easily.

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

[0012]

As described above, according to the present invention, the floor is moved to the highest position so that the moving casters are projected downward from the fixed legs to move the bed. This made it easier to clean the entire area 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 the caregiver. Excellent.

[0013]

[Brief description of the drawings]

FIG. 1 is an external perspective explanatory view showing an embodiment of a bed provided with a floor lifting mechanism according to the present invention.

FIG. 2 is a schematic diagram illustrating a configuration of a bed elevation mechanism of the bed shown in FIG. 1;

FIG. 3 is an explanatory diagram 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 the operation of an up-and-down leg member and a moving caster in the bed floor elevating mechanism shown in FIG. 3;

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

[Explanation of symbols]

 Reference Signs List 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)

(57) [Claims] 1. A pair of undulating leg members rotatably mounted near both sides in the longitudinal direction of a frame of a bed , and
Connecting the middle part of the undulating leg member to both ends of the frame
And an auxiliary stay to assist in regulating the operation of the
And these two undulating leg members and auxiliary stays are linked.
Provided with a floor elevating mechanism having a driving mechanism for driving
In the above, the up-and-down leg member is provided at the base end of the up-and-down leg member.
Attach a leg pipe that rotates in conjunction with
Rotate the leg caps that touch the floor to both ends of the leg pipes.
The caster for moving is integrated with the leg pipe
The drive mechanism is operated to raise and lower
By raising the leg members, the moving casters are
Move the bed by protruding below the cap and touching the ground
A bed provided with a floor elevating mechanism, wherein the bed is movably supported by casters . 2. A moving caster interlocking with an up-and-down leg member is connected to a leg pipe at a base end of the up-and-down leg member via an auxiliary column, and the driving mechanism is operated to operate the up-and-down leg. Components
The bed provided with a floor-elevating mechanism according to claim 1 , wherein the moving casters protrude below the leg pipe by being raised so that the maximum height of the floor can be adjusted.