JPH0366574A - Clean workbench - Google Patents

Abstract

PURPOSE:To effectively radiate a bactericidal lamp and to improve a sterilization effect by providing a floodlight at the position faced to a work room and capable of the direct projection of the light of a bactericidal lamp. CONSTITUTION:A bactericidal lamp 18 is provided apart from the wall plate 22 of a work room and yet a floodlight 17 is provided at the position capable of the direct projection of the bactericidal lamp 18, namely the position where the light is not shut off. The bactericidal lamp 18 can effectively be irradiated inside the work room and the sterilization effect can be improved. Moreover, since the folded part 24 provided at the lower part of the wall plate 22 is formed so as to continue smoothly to a floor plate 30, the biotic material of bacteria, etc., and dust are difficult to be collected, the wiping off work by the absorbent cotton containing a sterilization liquid is also facilitated and the sterilization workability can be improved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides lighting means in a work room that can improve the sterilization effect and sterilization workability in a sterile workbench that handles biological materials such as bacteria; A work aid! ! i! Regarding the structure of some corners in the work room.

[Conventional t branch]

The conventional device uses air supplied by a fan as shown in Japanese Patent Application Publication No. 32-24984! It is purified by tFJ with an EPA filter and supplied into the working room, and is also cleaned with an HEPA filter and exhausted to the outside. In addition, air flowing from the outside as an air curtain is mixed with air supplied into the work chamber through a suction section at the front of the work chamber, and is sucked in, purified by an exhaust HEPA filter, and then exhausted.

In this type of device, the fluorescent lamps 17 for internal illumination are generally placed outside both doors 3 as shown in FIG. 31, or
As shown in IE32 and Figure 33, the sterilizing lamp inside the work room was placed in a position to block the daily irradiation light.The connection between the work room floor and wall is shown in Figures 35 and 36. They were connected almost at right angles as shown in the figure.

[Problem to be solved by the invention]

The above conventional technology has a structure in which a part of the corner between the wall surface and the floor surface of the work room is at a right angle or has a joint.
As shown in the figure, when sterilizing and cleaning microscopic contaminants 52 such as bacteria and other biological materials and dust using a sterilizing tool 61 such as absorbent cotton, as shown in FIG.
It was difficult to achieve complete sterilization. Especially in the back corner of the workroom, the depth of the workroom is usually 600 mm.
Since the size of the sterilizer is approximately 1.5 mm, sterilization work must be performed with the hand fully extended, making it extremely difficult to perform the work in detail. Further, as shown in FIG. 36, the joints at some corners were structured to easily accumulate contaminants 52 such as bacteria.

In addition, as shown in FIGS. 32 and 33, the fluorescent lamp 17 is installed in a position that blocks the irradiation light of the sterilizing lamp 18, creating a dead space (shadow) in the ultraviolet irradiation range of the sterilizing lamp 18, reducing the sterilization effect. There was a problem. In addition, as shown in FIGS. 37 and 38, a configuration in which a spacer 62 having a curved surface is added to a part of the corner and both ends of the spacer 62 are filled with seals 63 has been considered, but as shown in FIG. occurs, and the accumulation of minute contaminants 52 such as bacteria cannot be prevented, resulting in poor sterilization effect and
There were problems with sterilization work. Further, as shown in FIG. 31, when the fluorescent lamp 37 is placed outside the workbench, there is a problem in that the overall opening becomes smaller and the head space for the worker is reduced.

The purpose of this invention is to make germicidal lamps effective! l! To provide a clean workbench with high cleanliness, which has excellent sterilization effect and sterilization workability, can easily remove contaminants, can reduce air turbulence, and can reduce air turbulence.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a working opening provided on the front surface isolated from the outside by a temporary wall, and a bottom plate provided on the numbing surface, and clean air is supplied from above by an air purifying means. On a clean workbench configured to
A light is provided above the working room, and a bent portion is provided below the wall plate so as to be smoothly continuous with the bottom plate.

[Effect]

Since the sterilizing lamp is provided at a distance from the wall plate of the working room and is shaded, the sterilizing lamp can be effectively irradiated inside the working room, and the sterilizing effect can be improved. The bent part provided at the bottom of the slope is formed so as to be smoothly continuous with the floorboard, so it is difficult for biological materials such as bacteria and dust to accumulate, and it is also sterilized by making it easy to wipe with absorbent cotton containing sterilization α. Improves work efficiency. In addition, even when the work equipment is placed at the bottom of the work room, there is a space between the work equipment and the wall plate, so it is possible to sterilize the back of the work equipment by irradiating it with a sterilization lamp, and it also ensures a space for airflow to pass through. It can reduce the turbulent flow that occurs around the work equipment.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 30.

1 to 7 show a first embodiment of the present invention.

In this example, the present invention is applied to a sterile laboratory bench.

FIG. 1 shows the appearance of the sterile workbench of this example. Its main body is work room 9, ceiling case l, back case 2, front door 3,
Consists of 4 legs. In this embodiment, the front surface 133 is a lower frame of a transparent glass window that allows experimental work operations, and is provided in a work opening 32 provided on the entire surface of the work room 9 so as to be openable and closable. The side surface 5 consists of a transparent glass window that can be viewed from the outside. The operation switch 6 is placed at the front, and the fluorescent lamp 7 and germicidal lamp 8 are placed inside the work room 9. FIG. 2 shows a side sectional view of the sterile workbench of this embodiment.

The lyc flow structure is partially circulation and partially exhaust type. Part of the air sent by the air supply fan 11 is exhausted
After passing through an EPA filter 12 and being cleaned, it is exhausted to the outside, and a part of it passes through a circulating HEPA filter 13 to be cleaned, is rectified by a punching plate 14, and is sent into the work chamber. The air sent into the work chamber 9 is sucked together with air flowing in from the outside for the air curtain from a suction plate 15 on the front side of the work chamber, passes through a duct 16, and is returned to the air supply fan 1.

Here, a fluorescent lamp 1 is placed on the back wall plate 22 inside the work room 9.
7 is embedded in the duct 16 and is formed in the shape of a slope in the working chamber.

Further, on the inner surface of the work chamber 9, a part of the corner from the wall plate 22 to the bottom plate 30 is a smooth and continuous bent portion (curved surface or obtuse slope) 24. In this embodiment, the bent portion 24 is arcuate, and its radius is set to approximately 30 degrees. As a result, the connecting portion between the wall plate 22 and the bottom plate 30 is located closer to this side than a part of the corner. Since the lower part of the wall plate 22 extends smoothly and continuously toward the bottom plate 30, biological materials such as bacteria and microscopic contaminants 52 such as dust are removed by a smooth, quick-reading bend on the front side, rather than at a corner that is difficult to sterilize. Part 24 to 1E
It will be accumulated.

As a result, as shown in Fig. 3, the ultraviolet rays irradiated from the exposed germicidal lamp 1B can easily accumulate contaminants 52 without impairing the illumination range due to the embedded lighting cover 23. 0 surface can be reached, thereby eliminating the decrease in sterilization effect caused by one day of sterilization lamp.

In this embodiment, the wall plate 22 is made of a stainless steel plate to prevent deterioration caused by ultraviolet rays. In addition, work room 9
Even if the working instrument 51 is placed inside, since there is the bending part 24, an irradiation space for the G9i germ lamp 18 can be secured between the rear of the instrument and the wall plate 22, and the bending part 24 can be sterilized. In this case, 0
Since the distance from the sterilizing lamp to the surface is shorter than the conventional contaminant accumulation point B, the intensity of the ultraviolet rays increases in inverse proportion to the square of the distance, and the sterilizing effect can be improved.

Further, the contaminants 52 accumulated in the smooth and continuous bent portion 24, like the fourth factor, can be easily sterilized and cleaned.

That is, in this embodiment, as shown in FIG.
Since the contaminants 1 can easily reach the contaminants 52, the contaminants 52 can be removed by wiping along the bent portion 24 as shown in FIG. Therefore, wiping work can be facilitated even on the back side of the work room. Also,
As shown in FIG. 4, the inner lower part of the side surface 5 is a flat surface, but since this surface can be wiped toward the front, workability on the back side is not a problem.

Furthermore, as shown in FIG. 7, the bent portion 24 also creates an airflow passage space between the work implement 51 and the wall plate 22. As a result, it is possible to reduce the occurrence of turbulence in the airflow.
It is possible to maintain the cleanliness of the surrounding area of 1.

A second embodiment of the invention is shown in FIG. In this embodiment, the position of the germicidal lamp 18 is changed to the upper part of the front side in the working chamber 9. ill! The configuration is similar to that of the first embodiment. In this case as well, similar to the first embodiment, it is possible to easily remove contaminants and obtain excellent sterilization effects and sterilization workability.

A third embodiment of the invention is shown in FIG. In this example, side 5
The glass window has been changed to a stainless steel wall plate 34, and the position of the fluorescent lamp 17 has been changed to be embedded in the side. The other configurations are the same as in the first embodiment. In this example, the first
The same effects as in the embodiment can be obtained. Further, in this embodiment, the positional relationship between the germicidal lamp 18 and the fluorescent lamp 17 may be reversed.

A fourth embodiment of the present invention is shown in FIGS. 10 and 11. In this embodiment, the present invention is applied to a sterile workbench having work openings on both sides. In this embodiment, a working opening 32 with a door 3 is provided on the front and back sides of the working room 9, and a sterilizing lamp 18 and a fluorescent lamp 17 are provided on the side wall plate 34. A bent portion 24 formed so as to be smoothly continuous with the bottom plate 30 is provided at the lower part of the wall plate 34. In this embodiment as well, the same effects as in the first embodiment can be obtained.

A fifth embodiment of the present invention is shown in FIGS. 12 and 13. In this embodiment, the airflow II structure is changed to a front and rear suction structure. The rest is the same as the first embodiment. In this case as well, the same effects as in the first embodiment can be obtained.

A sixth embodiment of the present invention is shown in FIG. In this embodiment, the smooth and continuous bent portion 24 is formed with an obtuse-angled slope. In this case as well, the same effects as in the first embodiment can be obtained, and the bending portion can be easily formed. Next, a detailed configuration example of the above embodiment will be explained.

Figures 15 to 20 show the shape of the fluorescent lamp cover 23 in the above embodiment. Figures 15 and 16
The figures show a frame formed around the irradiation window, Figure 17, Figure 1.
Figure 8 shows the irradiation window made in one piece, and Figures 19 and 20 show the irradiation window embedded so that its mounting surface is flat. In both cases, a slope 23a is formed on the side of the cover 23 farther from the germicidal lamp 18, so that the irradiation light from the germicidal lamp 18 is not blocked.

FIGS. 21 to 25 show the above-mentioned embodiment in which work aiding means such as piping is provided inside the work chamber.

This example is an example when gas piping is installed. 21 and 22 show the piping when it is not in use, with the piping connection port 71 embedded in the mounting surface and covered with the cover 70. 23rd
The figure shows the cover 70 in an open state. Figures 24 and 25
The figure shows a state in which a hose 72 is connected and piping is used. Also in this case, since the connection port 71 is embedded in the mounting surface, the irradiation light of the germicidal lamp is not blocked.

As shown in FIG. 26, a step is provided between the lower surface of the work chamber and the bottom plate 30 of the work chamber, and by lowering the bottom plate 30 by a distance d, even if the instrument 74 on the table moves in the direction of the arrow, it will not fall into the suction port 15. can be prevented. Further, as shown in FIG. 26, a bent portion formed so as to be smoothly continuous may be provided on the bottom plate 30 and the portion that receives the suction port 15.

Figures 27 to 28 show the suction port 15 in the above embodiment.
It represents the shape of . Figure 27 is Gold & I with slit holes in the frame! 180 is installed, and this is
It can also be applied to frames with punched holes and square holes. 28th
The figure shows the intake port by looking at the wire mesh 80! I made it. By using wire mesh, the mesh can be narrowed without reducing the aperture ratio, and since there are no edges or edges on both sides of the wire mesh, injuries to workers when handling can be prevented.

Figures 29 and 30 relate to the safety of the full-scale door 3 during a leap in the above embodiment. When the handle 85 of the front door 3 is lifted up, the front cover 86 and the handle 85 To avoid getting caught, use the stopper 87 as shown in Figure 30.
It has been established.

As a result, when both doors 3 are fully opened, the handle 85 and the full cover 86
A gap g is formed between the two, and by appropriately setting this gap g, it is possible to prevent accidents caused by being caught.

Note that the gap g is preferably set to a minimum of about 15''ffL'Wl-, preferably 30i% or more.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the effects described below.

Since the lighting lamp is provided in a position that does not block the irradiation light of the sterilizing lamp, the sterilizing lamp can be irradiated effectively and the sterilization effect can be improved. In addition, the smooth and continuous bent portion provided below the ascending slope in the work chamber facilitates the removal of accumulated dirt and improves sterilization workability. Moreover,
Even if the work equipment is placed at the bottom of the work room, a germicidal lamp can be placed in the space formed between the work equipment and the wall board! lr1 can be used and the sterilization effect can be improved. Furthermore, since an airflow passage space is formed between the wall plate and the work implement by the bending part, the generation of airflow turbulence can be reduced, resulting in a clean i... It is possible to improve the performance by 1 degree.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the appearance of the first embodiment of the present invention;
The figure is a side sectional view showing the configuration of this embodiment, FIG. 3 is a side sectional view of the main part showing the irradiation state of the germicidal lamp in this embodiment, and FIGS. Figure 4 shows how to remove t! in the work room. 47! Fig. 6 is a perspective view of the bending part, Fig. 6 is a side sectional view of the bending part, Fig. 7 is a perspective view showing the airflow around the work implement in this embodiment, and Fig. 8
The figure is a side sectional view of the main part of the second embodiment of the present invention, FIG. 9 is a side sectional view of the main part of the third embodiment of the invention, FIGS.
12 and 13 are a side sectional view and a perspective view of essential parts of a fifth embodiment of the present invention, respectively. The figure is a perspective view of the main part of the sixth embodiment of the present invention, FIGS.
17 and 18 are respectively a perspective view and a side sectional view of the integrated illumination light cover, and FIGS. 19 and 20 are a perspective view and a side sectional view of the flat type illumination light cover, respectively.
Figures 25 to 25 show the piping attachment section, and Figures 21 and 2 are a front view and side sectional view of the cover in the hinged state, respectively, and the second
Figure 3 is a front view when the cover is open, Figures 24 and 25 are a front view and side sectional view when the hose is connected and used, respectively, and Figure 26 is a secondary diagram showing the positional relationship between the bottom plate and the suction port. The sectional view, FIGS. 27 and 28 are perspective views showing examples of the shape of the suction port, and FIGS. 29 and 30 are front views of the main parts showing the positional relationships between the handles in all parts and the front cover, respectively = fI Bacteria lamp, two-fold part, : lighting lamp, 22.34 wall plate, 24 30: bottom plate, 32: work opening. Figures and side sectional views, Figure 31 is a side sectional view showing an example of the installation state of a conventional illumination light and a stage 2 fungal lamp, No. Figures p and 3 ## are the conventional! ′! Figure 34 is a perspective view showing the state of sterilization work in the conventional H position, and Figure 35 shows a part of the corner of the conventional device and sterilization tools. 36 is a side sectional view showing the configuration of a part of a corner of an IRT device, and FIGS. 37 and 38 are corner views studied in the process leading to the present invention. FIG. 2 is a perspective view and a side sectional view of a main part, respectively. 9: Working room, 11.13: Air purification means, 17th) Fig. 7 Fig. l Fig. 2 Fig. 3 Concave Fig. 16 Fig. 6 Fig. 6

Claims (1)

[Claims] 1. A clean workbench that is isolated from the outside by a wall plate, has a work opening provided on the front and a bottom plate provided on the bottom, and is configured such that clean air is supplied from above by an air purification means, A sterilizing lamp provided above the working chamber and spaced apart from the wall plate, and an illumination lamp provided at a position facing the working chamber and allowing the rays of the sterilizing lamp to directly radiate, A clean workbench characterized in that the plate is provided with a bent portion formed downwardly so as to be smoothly continuous with the bottom plate.