JPH0737320B2 - Single pillar lifting device - Google Patents

Description

Detailed Description of the Invention

[0001]

[Industrial field of application] This is an elevator that can be lifted by itself along a vertical column fixed to a wall surface when it has only one column.

[0002]

2. Description of the Related Art An elevator is known in which a pair of parallel columns fixed to a wall surface and a pin rack in the center thereof can be raised and lowered by themselves. An arm that holds both rails is installed in the lifting cage,
A sprocket driven by a power source on the cage is engaged with the pin rack. All of the publicly known ones have one pair of pillars, but there is a potential demand for a single pillar that can be used because of the reduction in equipment cost depending on the application.

[0003]

SOLUTION: A single pillar can be lifted and lowered by making the pillar into an H shape, fixing the back surface to the wall surface, providing a pin rack at the center of the front surface, and holding both edges of the front surface with both arms of the cage. However, problems occur at the rising extreme. The pillars are between the wall and the cage, which hinders loading and unloading of items. The cage has a small area, and it is difficult for a worker who has been waiting above to enter the cage. Therefore, by utilizing the single pillar, the pillar is divided into a long main pillar and a short auxiliary pillar, and it is possible to turn the auxiliary pillar on the main pillar to a position convenient for handling cargo. That is, the bearing cylinder is fixed to the main pillar, and the rotary shaft is fixed to the corresponding sub pillar, respectively, so that the main cylinder can rotate about the axis.

[0004]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings will be described. H-shaped main pillar 1 is front 1
a and a rear side 1b. The rear side 1b is fixed to the wall surface via the supporting member 2. A pin rack 3 is fixed to the center of the main pillar. The sub pillar 4 has the same shape as the main pillar 1, and includes a pin rack 5 connectable to the pin rack 3. The bearing cylinder 6 is welded to the center of the rear side 1b at the upper end of the main pillar, while the rotary shaft 7 is welded to the auxiliary pillar correspondingly, and the lower half thereof is inserted into the bearing cylinder. That is, the sub-pillar can turn around this axis with respect to the main post. The pair of detents 8 have a U-shaped cross section, one end of which is pivotally attached to the rear edge of the main column, and the other end of which can be bolted to the corresponding edge of the sub column.

The cage C is held by the arm A so that both ends of the front side 1a can be moved up and down via ball bearings (not shown). A drive source M is fixed in the cage C, and a sprocket S driven by the drive source M is engaged with the pin rack 5. Cage C uses the limit switch to allow workers below or above
Elevation can be controlled easily. When the cage stops above, the upper operator releases the detent 8 and pushes the cage to rotate it to a position convenient for handling cargo.

[0006]

[Effect] For a limited number of uses, a single column can be raised and lowered without hindrance, and there is no difficulty in loading and unloading above.

[Brief description of drawings]

FIG. 1 is a plan view of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the same.

[Explanation of symbols]

 1 Main Pillar 2 Supporting Material 3 Pin Rack 4 Secondary Pillar 5 Pin Rack 6 Bearing Tube 7 Rotation Shaft 8 Rotation Stopper C Cage A Arm M Drive Source S Sprocket

Claims (1)

[Claims] 1. An H-shaped long main pillar having a back surface vertically fixed to a wall surface through a support member and having a pin rack on the front surface, and a pin rack mountable to the head of the main pillar and connectable to the pin rack of the main pillar. A sub-pillar swivel mechanism including a short sub-pillar provided with, a bearing cylinder fixed to the center of the back surface of the main pillar, and a corresponding rotating shaft fixed to the sub-pillar and supported by the bearing cylinder. Main pillar with a U-shaped rotation stopper that is pivotally attached to the rear side of the pillar or sub-column and that can be locked to the rear side of the mating pillar at the other end, and a pair of U-shaped arms that can hold the front side of the main pillar A single-pillar lifting device composed of a sprocket that engages with a pin rack of a sub-pillar and a cage equipped with a drive source thereof.