JP2560710Y2 - Cage barrier device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cage barrier device for an animal breeding room with an improved breeding environment in an air conditioning ventilation system for a laboratory animal breeding room used for, for example, a safety test.

[0002]

2. Description of the Related Art FIGS. 3A and 3B are a sectional view and a front view of a conventional animal breeding room. In the drawings, arrows indicate the flow of air. A rack 22 including a plurality of shelves is provided in the laboratory animal breeding room 21. In the rack 22, an exhaust chamber 23 also serves as a back plate, and an exhaust duct 24 is connected to the exhaust chamber 23. The exhaust chamber-2
3 is provided with a suction port on a part of the rack 22 on the shelf side. In the rack 22, the air supply duct 26 also serves as a shelf,
An air outlet is provided on a part of the lower surface of the air supply duct 26. Each air supply duct 26 is connected to an air supply duct 262 via an air supply chamber-261. Each rack of the rack 22 is provided with a cage 28 containing experimental animals.

This cage 28 is, as shown in FIG.
An upper surface of the cage main body 281 is provided with an opening, and a wire mesh 35 is attached to an opening of the upper surface of the cage main body 281.
The wire mesh 35 is provided with a recess 351, and the recess 35
A bait 36 is placed on 1. The cage body 281
Is covered with a sealing cover -282 with a wire mesh 35 interposed therebetween.
Is provided. The air supply port 29 is provided with a filter 30. The air supply port 29 is provided with the cage 28 in the rack 22.
When installed in the air outlet 27 of the air supply duct 26
It is provided so that it may be connected to. In addition, the closed cover
An exhaust port 31 is provided at 282 on the exhaust chamber 23 side, and a filter 32 is provided at the exhaust port 31. When the cage 28 is installed in the rack 22, the exhaust port 31 is installed at an interval near the suction port 25 of the exhaust chamber 23, and is shifted so as not to face the suction port 25. And install it.

[0004] An indoor air-conditioning outlet 33 is provided on the ceiling of the experimental animal breeding room 21 and an air inlet 3 is provided.
4 are provided.

[0005] Separately, the conditioned air of the cage 28 is sent from the air supply duct 26. As for the conditioned air, the air passing through the cage 28 is exhausted through the exhaust chamber 23.

The ventilation in the cage 28 will be described as follows.

As shown in FIG. 3, an air supply port 29 with a filter 30 and an exhaust port 31 with a filter 32 are installed in a closed cage 28, and the air supply port 29 of the cage 28 is an air supply which also serves as a shelf plate. It is connected to the position of the outlet 27 of the duct 26 and installed. The exhaust port 31 of the cage 28 is installed at an interval in the vicinity of the suction port 25 provided on the back of the rack 22, and is installed at a position shifted so as not to face the suction port 25.

An air supply duct 2 is connected to an air supply port 29 of the cage 28.
The clean air blown out from the air outlet 27 of the air blower 6 is pushed in, and only the amount of air that maintains the inside of the cage 28 at a positive pressure is exhausted from the outlet 31 of the cage 28. Therefore, since the inside of the cage 28 is clean and has a positive pressure, there is no contamination from the outside of the cage 28.

In this embodiment, since the inside of the cage 28 is maintained at a positive pressure, the possibility of external contamination can be eliminated.

As described above, the air-tight cage provided with the air supply / exhaust port is provided with the air outlet through which the clean air is provided on the lower surface of the shelf plate having the air supply duct structure, and the suction port provided on the shelf side. A clean barrier can be constructed in cage units by installing the rack in a rack provided with an exhaust chamber that also serves as a back plate.

In order to construct a barrier in cage units and to enable air conditioning in the cage, a filter air supply port is provided at the top of the cage sealed with a cover, and a filter is provided at the rear side surface of the cage. An exhaust port is provided, and the position of the air supply port of the cage is connected to the lower part of the air outlet on the lower surface of the air supply duct and shelf, so that clean air flowing out of the air outlet passes through the air inlet of the cage. By being pushed in, the inside of the cage can be properly ventilated.

In such a conventional laboratory animal breeding room, a sealed cover-282 is provided on the cage body 281 with a wire mesh 35 interposed therebetween.
To prevent experimental animals in the cage body 281 from entering the closed cover-282. The bait 36 is placed on the concave portion 351 of the wire mesh 35, and the experimental animal in the cage body 281 is fed from the gap of the wire mesh 35 by the bait
I am going to eat 6.

[0013]

However, in such a conventional cage, a sealed cover is required to apply treatment to the animals in the cage during an animal experiment or to replace floor mats. The two steps of removing the open wire mesh have to be performed, and the operation is complicated.

Therefore, the present invention has been made in view of the above circumstances, and provides a cage barrier device which can reduce the complexity of operations such as adding treatment to animals and replacing floor coverings. The purpose is to provide.

[0015]

In order to achieve the above object, a cage barrier device according to the present invention comprises a cage body having an open upper surface, and a hermetically-sealed seal provided so as to cover the upper surface of the cage body. A cover, a gripping member provided on a front inner wall of the sealing cover, a hanging member provided on a rear inner wall of the sealing cover, and a rear portion hung on the hanging member so that a front portion of the gripping member can escape freely. It is characterized by comprising a net member provided between the grasped cage body and the sealing cover, the net member is attached to the sealing cover, and the net member is simultaneously opened by opening the sealing cover. By releasing it, you can add treatment to the animal,
In operations such as changing floor coverings, the complexity of the operation can be eliminated.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;

FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a perspective view showing an example of a wire mesh mounting portion shown in FIG. That is, the cage body 281 of the cage 28 is provided with an open upper surface, and a sealing cover-282 is provided on the upper surface of the cage body 281 so as to be detachable so as to cover the opening. A gripping member, for example, two gripping members 41 is provided on a front inner wall of the sealing cover-282. The grip 41 is attached to one front surface of the L-shaped cross-section 411 on the front inner wall of the sealing cover-282, and the other rear surface of the L-shaped cross-section 411 is a semi-cylindrical metal 412 made of a spring material.
Of the semi-cylindrical metal fitting 412 is provided downward. The sealing cover 28
A hook member, for example, a hook 42 is provided on the inner wall of the rear part 2. The latch 42 is formed by attaching one back surface of an L-shaped bracket 421. A mesh member, for example, a rear portion of a wire mesh 43 is hooked on the hook metal fitting 42, and a front portion of the wire mesh 43 is gripped by the gripping metal tool 41 so that the front portion of the wire mesh 43 can escape therefrom. 282. The wire net 43 is provided with a concave portion 431 formed by bending the wire net, and the bait 44 is placed on the concave portion 431. The cage body 2
A sealing cover-282 is formed over the wire 81 via a wire mesh 43, and an air supply port 29 is provided on the upper surface of the sealing cover-282. The air supply port 29 is provided with a filter 30. The air supply port 29 is provided so as to be connected to the air outlet of the air supply duct when the cage 28 is installed in a rack provided in the animal breeding room. The closed cover-282 has an exhaust port 31 on the exhaust chamber side.
The closed cover-282 has an exhaust port 3 therein.
1, a filter 32 'is provided. When the cage 28 is installed in the rack, the exhaust port 31 is provided with a space in the vicinity of the suction port of the exhaust chamber, and is shifted so as not to face the suction port.

That is, the wire mesh 43 can be attached to the sealing cover 282 by hanging the rear portion of the wire mesh 43 on the hook 42 and lifting the front portion of the wire mesh 43 so as to be gripped by the grip metal 41. Therefore, in order to apply treatment to the animals in the cage 28 during the animal experiment or to change the floor covering in the cage 28, the cover 282 is closed from the cage body 281.
, The wire mesh 43 can be removed at the same time.
The sealing cover 282 and the wire netting 43 can be opened in one step, and the complexity of the operation can be eliminated.

When the wire mesh 43 is to be removed from the closed cover 282 for replenishing the bait, the wire mesh 43 can be easily removed from the grip metal fitting 41 and the hook metal fitting 42 by pulling the front part of the wire mesh 43 downward. .

[0020]

[Effects of the Invention] As described above, according to the present invention, the net member is attached to the sealing cover, and the net member is opened at the same time as the sealing cover is opened, so that the animal can be treated or the floor mat is replaced. For example, the operation can be performed in a complicated manner.

[Brief description of the drawings]

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

FIG. 2 is a perspective view showing an example of a wire mesh attaching portion in FIG.

FIG. 3 is a configuration diagram showing a conventional laboratory animal breeding room.

FIG. 4 is a configuration diagram showing a cage unit of FIG. 3;

[Explanation of symbols]

21 ... animal breeding room, 22 ... rack, 23 ... exhaust chamber, 24 ... exhaust duct, 25 ... intake port, 26, ... air supply duct, 27 ... outlet, 28 ... cage, 29 ... air supply port, 3
0, 32 ': filter, 31: exhaust port, 41: grip, 42: latch, 43: wire mesh, 281: cage body, 282: closed cover.

Claims (1)

(57) [Scope of request for utility model registration] 1. A cage body having an open upper surface, a sealing cover detachably provided to cover the upper surface of the cage body, a gripping member provided on a front inner wall of the sealing cover, and the sealing cover. A hook member provided on the rear inner wall, and a net member provided between the cage body and the sealing cover, the rear portion of which is hung on the hook member, and the front portion of which is freely escapable by the gripping member. A cage barrier device, comprising: