JPH06171713A - Stacker crane - Google Patents

Abstract

PURPOSE:To provide a stacker crane which can prevent securely dust generated due to contact of an angle located at the upper side of a mast with a guide roller from spattering into the air, and also maintain a high level of cleanliness. CONSTITUTION:A stacker crane is provided with a lower frame 1, a hollow mast 2 installed erectedly on the lower frame 1, guide rollers 4 and 4 which are installed at the top of the mast 2 and made in contact with an angle 15 located at the upper side of the mast 2, and a clean unit 5 which is located on the lower frame 1 and sucks through the mast 2 the dust generated by the guide rollers 4 and 4 making contact with the angle 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stacker crane installed in a clean warehouse. In particular, the present invention relates to a stacker crane that can reliably prevent dust generated by contact between a guide roller on the mast and a rail from scattering in the air.

[0002]

2. Description of the Related Art FIG. 6 is a schematic front view showing a conventional stacker crane.

In the figure, 10 is a lower frame of a crane traveling on a traveling rail R, and 11 is a lower frame 1.
A mast that is erected at 0 is a lift that moves up and down along the mast 11. Reference numeral 13 is a guide roller provided on the upper portion of the mast 11, and contacts a angle 14 arranged above the crane.

[0004] Such a crane travels along a traveling rail R, and loads and unloads a load between a station (not shown) and a shelf.

[0005]

The above-mentioned conventional stacker crane is provided with a means for cleaning the dust generated by the contact between the guide roller 13 and the angle 14 arranged above the mast 11. There wasn't.

For this reason, dust is scattered around the crane each time the crane travels.
As a result, there is a problem that the cleanliness of the entire clean warehouse is impaired.

An object of the present invention is to solve the above problems and to reliably prevent dust generated by contact between an angle arranged above the mast and a guide roller from scattering in the air. It is to provide a stacker crane capable of maintaining high cleanliness.

[0008]

In order to achieve the above object, the present invention is directed to a lower frame, a mast having a hollow structure which is erected on the lower frame, and an upper part of the mast which is provided above the mast. A guide roller that contacts the arranged angle and a clean unit that is provided in the lower frame and sucks dust generated when the guide roller contacts the angle through the mast are used.

[0009]

Since the stacker crane of the present invention has the above-mentioned structure, it has the following effects.

That is, the dust generated by the contact between the guide roller and the angle arranged above the mast is
It will pass through the mast and will be sucked into the clean unit of the lower frame.

Therefore, according to the stacker crane of the present invention, it is possible to reliably prevent the dust generated by the contact between the angle and the guide roller arranged above the mast from being scattered into the air, and it is possible to achieve a high cleanliness. The effect is that the degree can be maintained.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic perspective view of a main part of a stacker crane according to the present invention, FIG. 2 is a vertical sectional view of an upper portion of a mast, and FIG.
Is a front view of a main part of the crane, FIG. 4 is a plan view of FIG. 3, and FIG. 5 is a left side view of FIG.

In these drawings, reference numeral 1 denotes a lower frame, which is designed to run along a running rail R laid on the floor of the building by a drive motor 1a. A mast 2 is erected on the lower frame 1. As shown in FIG. 4, the mast 2 has a hollow structure having a substantially square cross section. A lift (not shown) is provided on the side of the mast 2 so as to be lifted and lowered.

In FIGS. 1 and 2, reference numerals 4 and 4 denote guide rollers attached to the upper portion of the mast 2 so as to come into contact with both side portions of an angle 15 having a substantially L-shaped cross section arranged above the crane. There is. The angle 15 is arranged along the traveling track of the crane.

The upper end 2a and the lower end 2b of the mast 2
Are formed with openings. The upper end 2a is shown in FIG.
3, the lower end 2b faces a clean unit of the lower frame 1, which will be described later, as shown in FIG.

Reference numeral 5 denotes a clean unit provided on the lower frame 1, which includes a fan 6 and a filter 7.

The fan 6 sucks the air above the mast 2 from the upper end 2a through the mast 2, as indicated by the arrow A in FIGS. The air sucked by the fan 6 is blown to the filter 7 and serves to clean the air from the fan 6. The air cleaned by the filter 7 is blown out from the side portion 1a of the clean unit 5.

According to the stacker crane having such a structure, the dust generated by the contact between the angle 15 and the guide rollers 4 and 4 does not generate dust on the fan 6 of the clean unit 5.
The air above the mast 2 and the mast 2
Be guided inside. Thereafter, the dust sucked into the mast 2 passes through the mast 2, is sucked by the fan 6 of the clean unit 5, and is sucked by the filter 7. A fan may be installed on the upper part of the mast near the guide roller in order to suck the dust generated by the contact between the angle and the guide roller. In this case, however, the inside of the mast located below the fan is exposed. Since the pressure is applied, there is a risk that the dust that has been sucked at all will leak out through the gap of the mast.

As described above, according to the stacker crane of the present embodiment, the angle 15 arranged above the mast 2 is increased.
It is possible to reliably prevent the dust generated by the contact between the guide rollers 4 and 4 from being scattered into the air, and it is possible to maintain high cleanliness.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be appropriately made within the scope of the present invention.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a main part of a stacker crane according to the present invention.

FIG. 2 is a vertical cross-sectional view of the upper portion of the mast.

FIG. 3 is a front view of a main part of the crane.

FIG. 4 is a plan view of FIG.

5 is a left side view of FIG.

FIG. 6 is a schematic front view showing a conventional stacker crane.

[Explanation of symbols]

 1 Lower frame 2 Mast 4 Guide roller 15 Angle

Claims (1)

[Claims] 1. A lower frame, a mast having a hollow structure which is erected on the lower frame, a guide roller which is provided on an upper portion of the mast and contacts an angle arranged above the mast, and the lower frame. A stacker crane, which is provided in the stacker and has a clean unit that sucks dust generated by the guide roller coming into contact with the angle through the mast.