JPH07103533A - Clean work bench - Google Patents

Abstract

PURPOSE:To easily replace a high performance filter by locking a guide roller of a plenum frame for mounting a blower to a holding fitting mounted on an inner wall of a cabinet body, and forming a gap between the filter and the frame of the blower. CONSTITUTION:A high performance filter 6 is mounted on a wall surface of a cabinet body 1, and fixed to a windward side of the filter 6 by an air supply plenum frame 8 having a high pressure chamber 7. A blower 11 for supplying the air to the chamber 7 is mounted at the frame 8. The filter 6 and the frame 8 are fixed to a mounting fitting 13. Guide rollers 15a, 15b are mounted at a sidewall of the frame 8, and locked to a holding fitting 16 mounted on an inner all of the body 1 above the filter 6. Thus, the frame 8 can be locked separately above from the filter 6, and can be easily replaced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning work table suitable for replacing a high performance filter for cleaning air.

[0002]

2. Description of the Related Art A conventional general cleaning workbench is composed of biohazard countermeasure products for handling dangerous pathogens and unknown microorganisms by genetic recombination experiments, and a clean bench that provides clean air to create a clean environment. In addition, a high-performance filter is built into the inside of the work space so that clean air is always supplied to the work space.
395).

[0003]

However, in the conventional cleaning workbench, since the blower is arranged above the high performance filter, the blower and the plenum frame must be removed when the high performance filter is replaced. Instead, the replacement work had to be performed by two people, and the replacement work was troublesome.

The present invention solves the above problems,
It is an object of the present invention to provide a cleaning workbench that allows easy replacement of a high-performance filter.

[0005]

SUMMARY OF THE INVENTION The present invention includes a cabinet body having an opening / closing door on the front surface and forming a working space therein,
A high-performance filter for air supply provided above the work space of the cabinet body, a plenum frame for air supply arranged above the high-performance filter, and an air filter for the high-performance filter attached to the plenum frame. A blower for pressure-feeding the work space and a work table provided on the lower side of the work space, guide rollers are provided on both sides of the plenum frame, and the guide roller is placed above the high-performance filter on the inner wall of the cabinet body. It has metal fittings attached.

[0006]

The present invention is constructed as described above,
The guide roller of the plenum frame with the blower is locked to the holding metal fitting attached to the inner wall of the cabinet body, and a gap is formed between the high performance filter and the plenum frame of the blower to facilitate replacement of this high performance filter. ing.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a clean bench showing an embodiment of the present invention. FIG. 2 is a cross-sectional view of essential parts showing a state in which a plenum frame is mounted on the high performance filter of the present invention. FIG. 3 is a sectional view of an essential part showing a state in which the plenum frame of the present invention is placed on the first metal fitting and the second metal fitting. FIG. 4 is a sectional view of an essential part showing a state in which the second metal fitting of the plenum frame of the present invention is placed on the third metal fitting with the fulcrum as a fulcrum. FIG. 5 is a sectional view of an essential part showing a state in which the plenum frame of the present invention is placed on the second metal fitting and the third metal fitting. FIG. 6 is a cross-sectional view of essential parts showing a state in which the third metal fitting of the plenum frame of the present invention is placed on the fourth metal fitting with the fulcrum as a fulcrum. FIG. 7 is a sectional view of an essential part showing a state in which the plenum frame of the present invention is placed on the third metal fitting and the fourth metal fitting.

Reference numeral 1 denotes a cabinet body, which has a working space 2 for working therein, and a transparent door 3 which can be opened and closed vertically is provided on the front surface of the cabinet body. On the side, specimen 4 such as cells to be cultured on the upper surface
A workbench 5 for mounting the is installed. Reference numeral 6 is a high-performance filter for air supply provided on the upper side of the work space 2. This high-performance filter is a cabinet body 1 that forms the work space 2.
It is attached to the wall surface of the above and is fixed to the inside of the high performance filter 6 by the plenum frame 8 for air supply having the high pressure chamber 7 on the windward side. A blower 11 is attached to the plenum frame, which sucks and pressurizes the air in the space 10 in the cabinet main body 1 above the working space 2 and blows the air to the high pressure chamber 7 of the plenum frame 8. 12 is the cabinet body 1
A similar high-performance filter for air supply provided on the upper wall of the cabinet 1, which is attached to the upper wall of the cabinet body 1.

Reference numeral 13 denotes a mounting member for fixing the high-performance filter 6 and the plenum frame 8 to each other. The mounting member is fixed to the cabinet body 1, and the filter and the plenum frame are mounted by the bolt 14.

Reference numerals 15a and 15b are guide rollers attached to the front and rear outer circumferences of the side walls of the plenum frame 8, and the guide rollers are provided on the left and right sides, respectively.

Reference numeral 16 is a holding metal fitting attached to the inner wall of the cabinet body 1 above the high-performance filter 6, and the holding metal fitting locks the plenum frame 8 guide roller 15.

First and second metal fittings 16a, 16b, and third metal fittings 16 are arranged one above the other in the front and rear, respectively.
The metal fitting 16c and the fourth metal fitting 16d are provided, and these metal fittings are provided on the side walls of the cabinet body 1 so as to face each other. Also, the first, second, third, fourth metal fittings 16a, 1
6b, 16c and 16d have different heights in the front and rear. Further, the upper third and fourth metal fittings 16a, 16b are configured to incline the locking portions for locking the guide rollers 15a, 15b to prevent the plenum frame 8 from slipping off.

The second metal fitting 16b is formed with a recess 17 which is fitted with a guide roller 15b and serves as a fulcrum for the rotation of the plenum frame 8.

The third metal piece 16c has a locking piece 18 which is erected to lock the guide roller 15a, and a stopper piece 1 which is erected to prevent the guide roller 15a from coming off.
9 and are provided.

The fourth fitting 16d is provided with a locking piece 20 which is raised to lock the guide roller 15b.

In the cleaning workbench constructed as described above, by driving the blower 11, the air in the space 10 is sucked and pressurized, and is blown to the high pressure chamber 7 of the plenum frame 8 for air supply. . The air blown to the high-pressure chamber flows to the high-performance air supply filter 6 to clean the air passing through the high-performance air supply filter. Then, the cleaned air flows from the upper side to the lower side in the working space 2 to clean the atmosphere of the sample 4 placed on the working table 5. Further, the air outside the cabinet body 1 is supplied to the space 10 through the high-performance filter 12 by the blower 11.

Here, a work procedure for replacing the high performance filter 6 will be described. First, the panel 21 at the rear end of the cabinet body 1 is removed, and then the bolt 14 that fixes the plenum frame 8 to the mounting member 13 is removed. Then, as shown in FIG. 3, the guide roller 15 of the plenum frame 8 is
The guide roller 15b is placed in the recessed portion 17 of the second metal fitting 16b while mounting a on the first metal fitting 16a. Next, as shown in FIG. 4, the plenum frame 8 mounts the guide roller 15a mounted on the first metal fitting 16a on the third metal fitting 16c with the guide roller 15b fitted in the recess as a fulcrum. Finally,
As shown in FIGS. 5 and 6, in the plenum frame 8, the guide roller 15b mounted on the second metal fitting 16b and the guide roller 15a mounted on the third metal fitting 16c are moved to the rear end side to move to the third position.
The guide roller 15b of the metal fitting 16c is mounted on the fourth metal fitting 16d with the guide roller 15a as a fulcrum. Then, as shown in FIG. 7, the plenum frame 8 is locked by the third metal fitting 16c and the fourth metal fitting 16d to form a clearance for exchanging work between the plenum frame 8 and the high-performance film 6 so that the plenum frame 8 is removed from inside the cabinet body 1. The high performance filter 6 can be replaced without removing the frame 8 and the blower 11.

The plenum frame 8 is alternately engaged with the holding metal fitting 16 and temporarily placed above the high performance filter 6 so that the replacement work of the high performance filter can be performed by one person.

Further, the plenum frame 8 is moved by mounting the rotating guide rollers 15a and 15b on the holding metal fitting 16 so that the heavy blower 11 can be mounted.

Further, the plenum frame 8 is provided with a holding metal fitting 16
By locking to and replacing the high-performance filter 6,
The replacement work can be performed without a space for placing the plenum frame 8 outside the cabinet body 1.

[0022]

As described above, according to the present invention, the opening / closing door is formed on the front surface to form the working space inside. As described above, the present invention has the opening / closing door on the front surface to form the working space inside. A cabinet body and a high-performance air supply filter provided on the upper side of the working space of the cabinet body,
An air supply plenum frame disposed above the high-performance filter, a blower attached to the plenum frame for sending air to the high-performance filter under pressure, and a work table provided on the lower side of the work space, Since guide rollers are provided on both sides of the plenum frame and a holding metal fitting for mounting the guide roller above the high performance filter is attached to the inner wall of the cabinet body, the guide roller provided on the plenum frame is locked to the holding metal fitting. As a result, this frame can be locked away from the high-performance filter, and the replacement work of the high-performance filter can be facilitated.

[Brief description of drawings]

FIG. 1 is a sectional view of a clean bench showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of essential parts showing a state in which a plenum frame is mounted on the high performance filter of the present invention.

FIG. 3 shows a plenum frame of the present invention including a first metal fitting and a second metal fitting.
It is a principal part sectional view which shows the state mounted on the metal fittings.

FIG. 4 is a cross-sectional view of essential parts showing a state in which the second metal fitting of the plenum frame of the present invention is placed on the third metal fitting with the fulcrum as a fulcrum.

FIG. 5 shows a plenum frame of the present invention including a second fitting and a third fitting.
It is a principal part sectional view which shows the state mounted on the metal fittings.

FIG. 6 is a cross-sectional view of essential parts showing a state in which the third metal fitting of the plenum frame of the present invention is placed on the fourth metal fitting as a fulcrum.

FIG. 7 shows a plenum frame of the present invention including a third fitting and a fourth fitting.
It is a principal part sectional view which shows the state mounted on the metal fittings.

[Explanation of symbols]

 1 Cabinet body 2 Working space 3 Door 5 Working table 6 High-performance filter 7 High-pressure chamber 8 Plenum frame 11 Blowers 15a, 15b Guide rollers 16 Holding metal fittings 16a First metal fitting 16b Second metal fitting 16c Third metal fitting 16d Fourth metal fitting

Claims (1)

[Claims] 1. A cabinet main body having an opening / closing door on the front surface to form a working space therein, and a high-performance air supply filter provided above the working space of the cabinet main body.
An air supply plenum frame disposed above the high-performance filter, a blower attached to the plenum frame for sending air to the high-performance filter under pressure, and a work table provided on the lower side of the work space were provided. In the clean workbench,
A cleaning workbench characterized in that guide rollers are provided on both sides of the plenum frame, and holding metal fittings for mounting the guide rollers above the high performance filter are attached to an inner wall of the cabinet body.