JPH061005Y2 - Lifting positioning device in lifting bed - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an elevating / lowering positioning device in an elevating bed for manually elevating and lowering a bed frame.

[Problems to be solved by the prior art and the invention] Today, there is a strong demand for effective use of the indoor space due to housing conditions and the like, so that the bed pedestal is stored in the ceiling when not in use to provide an effective indoor space. A lift bed is known that is configured to be widely secured. In this case, it is also necessary from a safety point of view to position the upper and lower limit positions of the bed pedestal so as to prevent the bed from moving further upward or downward. However, since the ceiling storage type lifting bed is to raise and lower by guiding the four corners of the bed pedestal by the corresponding guide rails, conventionally, its positioning is
This is done by the stoppers provided on each guide rail.Therefore, in order to adjust the position, it is necessary to adjust the stopper positions provided on each guide rail, which makes the adjustment work troublesome. Moreover, the adjustment position may be misaligned, and when setting to the lower limit position, if the lowering operation is continued even after the lower limit is reached, the wire will loosen and come off the pulley. There are drawbacks such as storage.

[Means for Solving Problems] The present invention has been made in view of the above circumstances, and was devised with the object of providing an elevating / positioning device for an elevating bed that can eliminate these drawbacks.
In a lifting bed in which hanging bodies such as wires respectively connected to the four corners of the bed base are wound around a winding wheel provided on a winding shaft to move the bed base up and down. In constructing the upper and lower limit positioning means for determining the upper and lower limit positions, the upper and lower limit positioning means are regulated to rotate in the direction around the axis of the winding shaft and are integrally interlocked with the rotation of the winding shaft. From the movable plate that moves in the core direction and the movement restricting member that positions the bed platform at the upper and lower limit positions by further restricting the movement of the movable plate that moves in conjunction with the movement of the bed platform to the upper and lower limit positions. It is characterized in that an adjusting member for adjusting the moving position of the movable plate is provided between the movable plate and the movement restricting member.

Further, according to the present invention, with this configuration, the positioning adjustment of the upper and lower limit positions of the bed pedestal is performed based on the rotation of the winding shaft to improve the workability.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a bed mount of a lifting bed, and a mount arm 2 projects in the front-rear direction at four corners of the mount 1, and the mount arm 2 is loosely fitted in a guide groove of a guide rail 3 to mount the mount 1. It is designed to guide you up and down. A winding case 4 is mounted between the upper ends of the left and right guide rails 3, and a winding shaft 5 is provided on both sides so as to be housed in the winding case 4. Wires (of course, a hanging body such as a belt may be used) 7 are wound around each of the winding wheels 6 provided integrally with the winding shaft 5. These wires 7 correspond to the gantry arms. It is connected to 2. As will be described later, the pedestal 1 is moved up and down by winding and rewinding the wire 7 by rotating the winding shaft 5 forward and backward.

A worm wheel 8 is integrally provided at one end of the winding shaft 5, and a worm gear 8a that meshes with the worm wheel 8 is provided at the front and rear ends of the horizontal shaft 10, which has a torque limiter. An operating wheel 11 is provided. And the operating wheel 11 has a ball chain 1
2 is suspended, and the operating wheel 11 is rotated by manually pushing down one of the hanging parts of the ball chain 12, whereby the winding shaft 5 of the winding shaft 5 is rotated. It is configured such that forward and reverse wire winding operations are performed.

Further, the spiral groove 5 is provided on the other end of one of the front winding shafts 5.
Although a is engraved, a square movable plate 13 is screwed into the spiral groove 5a. Reference numeral 14 is a bracket extending from a bearing 15 for bearing the winding shaft 5,
Since the plate surface (not shown) of the bracket 14 faces the upper edge of the movable plate 13, the rotation of the movable plate 13 in the axial direction is restricted. Then, the movable plate 13
Are integrally interlocked with the rotation of the winding shaft 5, and move in the axial direction in a state in which the rotation around the axial center is restricted. Further, the movable plate 13 has an adjusting bolt 16
Is screwed by a nut 16a so that its position can be adjusted. When the movable plate 13 is moved in the direction of the arrow on the bearing 15 side by the rotation of the take-up shaft 5 on the side that raises the gantry 1, the bearing 15 is inserted into the bearing 15. The adjusting bolt 16 is provided on the stopper surface 15a provided.
The distal end portions of the bases 1 and 2 are brought into contact with each other to restrict further movement, and thereby the upper limit position of the gantry 1 is positioned. Further, the positioning of the lower limit side of the gantry 1 is configured to be performed by an adjustment bolt 17 provided on the bracket 14 by a nut 17a so as to be positionally adjustable. In other words, although the movable plate 13 moves in the direction opposite to the arrow as the gantry 1 is lowered, when the movable plate 13 moves to the lower limit position, the movable plate 13 contacts the tip of the adjustment bolt 17 and moves further. Is regulated so that the lower limit position of the gantry 1 is positioned. Therefore, in this embodiment, the lifting position of the lifting bed is determined based on the rotation of the winding shaft 5. Upper and lower limit positioning means are formed.

In the embodiment of the present invention constructed as described above, the mount 1
The vertical movement of the ball chain 12 is manually performed by the forward and reverse rotation operations of the ball chain 12. In that case, the upper and lower limit positions are integrally linked to the rotation of the winding shaft 5 and the shaft core. This is done by adjusting the movement restricting position where the movable plate 13 moving in the direction is restricted by the winding shaft adjusting bolts 16 or 17 by adjusting the nuts 16a and 17a, which allows simultaneous positioning in all four directions. Therefore, it is not necessary to perform the positioning adjustment of the upper and lower limit positions by adjusting the positions of the stoppers provided on the four guide rails 3 as in the related art, and the adjustment bolts 16 and 17 for adjusting the movement restricting position of the movable plate 13 are not necessary. It is sufficient to adjust the amount of protrusion, and therefore the upper and lower limit adjustment operations cannot be significantly simplified, and accurate adjustments can be made without making the adjustment positions uneven, greatly improving workability. It will be able to be measured.

Moreover, since it can be determined whether or not the upper and lower limit positions have been reached because the pressing operation of the ball chain 12 cannot be performed, it is possible to avoid a problem such as over-feeding the wire.

Needless to say, the present invention is not limited to the above-mentioned embodiment, and only one winding shaft is provided, and all four wires (belts) are wound around this winding shaft. It goes without saying that the present invention can also be carried out in the thing.

[Effects] In summary, since the present invention is constructed as described above, it is not necessary to adjust the upper and lower limit positions of the bed pedestal by adjusting the stopper positions provided on the guide rails as in the conventional case. , By adjusting the movement regulating position of the movable plate that moves in the axial direction integrally with the rotation of the winding shaft by the movement regulating member by the adjusting member, the four directions corresponding to each guide rail can be obtained. Can be adjusted at the same time and without misalignment. Therefore, the upper and lower limit position adjustment work cannot be extremely simplified, and the position shift can be accurately performed without any positional deviation, and the workability can be significantly improved.

[Brief description of drawings]

The drawings show an embodiment of a lifting / lowering positioning device in a lifting / lowering bed according to the present invention. FIG. 1 is a schematic plan view of the lifting / lowering bed, FIG. 2 is a schematic side view of the same as above, and FIG. An enlarged plan view and FIG. 4 are enlarged side views of main parts. In the figure, 1 is a bed stand, 5 is a winding shaft, 7 is a wire, 1
3 is a movable plate, and 16 and 17 are adjusting bolts.

Claims (1)

[Scope of utility model registration request] 1. A bed frame is connected to each of the four corners.
A winding hoist equipped with a hanging body such as a wire on the winding shaft.
It is mounted on a rack and is used to raise and lower the bed platform.
Determines the upper and lower limit positions of the bed pedestal for descending beds
To configure the upper and lower limit positioning means for
The lower limit positioning means regulates rotation around the winding shaft.
And is moved in the axial direction integrally with the rotation of the winding shaft.
The movable plate that moves and the bed platform can move to the upper and lower limit positions.
Restrict the movement of the movable plate that moved in conjunction with
Movement control member that positions the bed platform at the upper and lower limit positions
And a movable plate and a movement restricting member.
The adjustment member for adjusting the moving position of the movable plate.
In a lifting bed characterized by being provided with
Lifting and positioning device.