JP2007223800A - Open type clean storage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems wherein an article stored in clean atmosphere cannot be taken out and be immediately used or be immediately stored in the clean atmosphere because a wall for partitioning the outside from the inside is provided in a conventional clean room, the article must be moved and a door must be opened or closed when carrying the article stored in the clean atmosphere out of/into the clean atmosphere and a lid must be opened or closed when a pass box is installed and the taken-out article may be polluted by suspended particulates and suspended microorganism because the outside of the clean room is not always in the clean atmosphere. <P>SOLUTION: A pan for loading an article on an upper face of a case body of a fan filter unit for supplying clean air is provided and a perforated plate blow-out port for blowing out the clean air from around the pan toward the center of the pan in the horizontal direction from upward facing attitude is provided to prevent intrusion of suspended particulates into a storage part on the pan by flow of the clean air and store the article in an opened condition in the clean atmosphere. A caster as a traveling means is provided on a lower face of the case body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an open type clean storage device for storing articles in a clean atmosphere in an open state.

In order to store articles in a clean atmosphere, it is common to store them in a clean room, clean booth or clean bench as a well-known example in the past. A wall is provided so that the inside can be filled with clean air and stored in a clean atmosphere (see Non-Patent Document 1).
"Edited by Japan Air Cleaners Association, Contamination Control Manual 1996, A.1 Clean Room"

  The clean room has a boundary wall that divides the outside and the interior, and doors are opened and closed and a pass box is installed to carry out and store articles stored in a clean atmosphere. If it is, the lid must be opened and closed. Moving and opening / closing operations are required to take items out of the clean room or store items from outside the clean room. Use the items stored in a clean atmosphere immediately or clean the items. There is a problem that cannot be stored immediately in the atmosphere.

  The clean booth also has a similar problem because it has a vinyl curtain separating the outside and the interior.

  As for the clean bench, only one boundary wall side is open, and there are boundary walls that divide the outside and the interior in three directions, so it is necessary to move in and out of goods. There are also restrictions.

  The outside of a clean room, clean booth, or clean bench is not always a clean atmosphere, and there is a problem that the items taken out are contaminated with suspended particulates and suspended microorganisms.

  Specifically, in a medical field, surgery may be performed in an operating room that is not a sterile operating room (clean room). In this case, the surgical instrument to be used is taken out from the sterilizer and placed on the cart until the operation starts. At this time, there is a problem that the surgical instrument is contaminated by airborne microorganisms.

  A clean room or clean booth is effective when the amount of articles stored in a clean atmosphere is large, but it is effective because it has a large capacity, but it is uneconomical and unreasonable when it is small and small.

  In addition to clean rooms, clean booths and clean benches cannot be moved and used easily.

  The present invention according to claim 1, which solves the above-described problem, is provided with a tray on which an article is placed on the upper surface of a housing of a fan filter unit that supplies clean air, and the clean air is directed upward from the periphery of the tray in a horizontal direction. A perforated plate outlet that blows out toward the center is provided to prevent the entry of suspended fine particles into the storage and storage part on the tray by the clean air flow so that the article can be stored in a clean atmosphere in an open state.

  Further, in the open type clean storage apparatus according to claim 1, a caster as a moving means is provided on the lower surface of the casing.

  The open type clean storage device of the present invention does not need to partition the storage and storage part in the clean atmosphere on the tray, in which the invasion of suspended particulates is suppressed by the clean air flow, and is open, so that the article is open. In order to store the product in a clean atmosphere or take out the product from the clean atmosphere, immediately store the product in a clean atmosphere without opening / closing the door, lid or curtain, or immediately clean the atmosphere. Goods can be removed from within.

  When the open type clean storage device of the present invention is provided with a caster as a moving means, it can be moved and arranged at any necessary place, so that the article can be stored in a clean atmosphere or cleaned. In order to take out an article from a simple atmosphere, it is not necessary for an operator to move to a clean room, a clean booth or a clean bench in the storage place.

  Furthermore, the articles stored in the clean room, clean booth, or clean bench can be moved to an arbitrary place while being stored in the storage storage section in the clean atmosphere of the open type clean storage apparatus of the present invention.

  Since the open type clean storage device of the present invention can store and store articles in a clean atmosphere even in a room without a clean atmosphere, it is necessary to dare to make the entire room a clean room or to provide a large clean booth or clean bench. In addition, the operation cost is low and a large space is not required.

  As the best mode for carrying out the open type clean storage apparatus of the present invention, as shown in FIG. 1, a fan 2 for sucking and discharging ambient air 9 to a fan filter unit 4 for supplying clean air and air pretreatment A pre-filter 1 and a main filter 3 for filtering suspended particulates are provided. A caster 5 is attached to the lower surface of the fan filter unit 4 so that it can be moved. To do.

  Next, a perforated plate outlet 7 is provided to blow clean air from the periphery of the pan 6 from the upward direction to the center of the horizontal pan 6, and the clean air flow 8 suppresses the entry of suspended particulates into the storage 10 on the pan 6. In the open state, the article can be stored in a clean atmosphere.

  More specifically, the prefilter 1 is a non-woven fabric that removes coarse dust, and the main filter 3 is a HEPA filter that collects 99.97% or more of suspended fine particles having a particle size of 0.3 μm or more, or A ULPA filter that collects 99.999% or more of suspended fine particles having a diameter of 0.1 μm or more may be used.

  Alternatively, a filter medium HEPA filter containing a lytic enzyme for sterilizing suspended microorganisms contained in the collected suspended particulates can also be used.

  The fan 2 is preferably a thin plate fan or a thin sirocco fan for incorporation into a device.

  With respect to the perforated plate outlet 7, attention should be paid so that the clean air flow 8 flows from the upward direction to the center of the horizontal direction receiving tray 6 around the receiving tray 6.

  The caster 5 is preferably a free type and attached with a stopper mechanism. If a handle is required for movement, it can be installed on the side of the housing.

  As the main body material, stainless steel which is resistant to rusting against moisture and chemicals is preferable.

  In addition, when used as an emergency open type clean storage device, a power supply device capable of battery operation can be incorporated into the open type clean storage device of the present invention.

    It is sectional drawing which showed the air flow line and structure of the open type clean storage apparatus of this invention.     It is sectional drawing which showed the area | region of the storage storage part of the open type clean storage apparatus of this invention.     It is the bird's-eye view which showed the external appearance of the open type clean storage apparatus of this invention.

Explanation of symbols

1 Prefilter 6 Saucepan
2 Fan 7 Perforated plate outlet
3 Main filter 8 Clean air flow
4 Fan filter unit 9 Ambient air
5 casters 10 storage and storage

Claims (2)

  A tray on which the article is placed is placed on the upper surface of the fan filter unit housing for supplying clean air, and a perforated plate outlet is provided to blow clean air from the periphery of the tray toward the center of the tray in the horizontal direction. An open type clean storage device configured to suppress invasion of suspended fine particles into a storage and storage unit on a tray and to store articles in a clean atmosphere in an open state.   2. The open type clean storage apparatus according to claim 1, wherein a caster as a moving means is provided on the lower surface of the casing.

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