JPH06278998A - Lift device of single pillar - Google Patents

Abstract

PURPOSE:To perform self lifting against a single pillar and further to facilitate loading and unloading a cargo in an elevation. CONSTITUTION:A pillar is formed in an H shape and fixed by its back surface to a wall surface, to provide a pin rack 5 in the front surface center. A cage C of an elevator, in which both ends of a front side 1a of the pillar are interposed by arms A, is lifted by driving a sprocket S meshed with the rack 5. The pillar is divided into two parts of a main pillar 1 and short subpillar 4, to fix a bearing tube 6 to the former and a rotary shaft 7 to the latter, and the subpillar can be turned about the center of this shaft. According to this pillar, also the pin rack is divided into two parts of a rack 3 for the main pillar and a rack 5 for the subpillar.

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 raised and lowered by forming an H-shaped pillar, fixing its back surface to a 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 correspondingly welded to the auxiliary pillar, 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 Column 2 Supporting Material 3 Pin Rack 4 Secondary Column 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 fixed vertically to a wall surface through a supporting 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. And a short sub-column, a bearing cylinder fixed to the center of the rear surface of the main column, and a swivel mechanism for the sub-column, which corresponds to this and a rotating shaft fixed to the sub-column 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.