JPH0744263U - Rack structure for animal breeding - Google Patents

Abstract

(57) [Summary] [Objective] In an animal breeding rack, air is uniformly supplied over almost the entire storage space of the animal storage cage to eliminate air retention and to supply sufficient air to the animals in the cage. [Structure] A plurality of cages 11 for housing breeding animals R
The cage 11 is provided with an air supply port 14 on the upper front side of the cage 11, and an exhaust port 10 is provided on the lower rear side of the cage 11 so as to face the same, and feeding means is provided on the front side of the upper surface of the cage. In the rack structure for raising animals provided with 20, the deflection means 2 for interlocking with the feeding means 20 and directing the air supplied from the air supply port 14 to the inside of the cage 11.
0a is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an animal breeding rack for storing a plurality of cages in which laboratory animals such as rats and mice are housed in a cage, and particularly for uniforming air circulation in each cage inside the rack. Related to the improvement of.

[0002]

[Prior art]

 The inside of a rack with a housing structure is vertically divided into multiple stages to be airtightly separated, and multiple animal storage cages can be slid into and removed from each stage in parallel so that racks can be stored side by side. It is used for business and research.

In such a rack for raising animals, in order to prevent microbial contamination (infection) of the contained experimental animals and to maintain their life, and to prevent the diffusion of air inside the cage contaminated by animal excrement and the like. In order to prevent and create a comfortable working environment, each cage has an exhaust port on the back of the rack and an air supply port on the front of each cage at each stage inside the rack. Such a rack is installed in an animal breeding room where researchers and workers carry out experiments and breeding. When the rack is used, the air inside the rack is sucked into the rack through the air supply port of the rack by sucking and exhausting the air inside the rack through the exhaust duct and the exhaust port when using the rack. It is configured so that air flows in one direction from the air outlet to the air outlet.

[0004]

[Problems to be solved by the device]

 However, in the conventional rack, depending on the positions of the air supply port and the air exhaust port, a stagnation area that deviates from the above-mentioned one-way air flow is formed at a specific part in the cage at each stage in the rack. Fresh air is not supplied to the part, odors, etc. accumulate, resulting in insufficient ventilation, making it impossible to maintain a stable breeding environment for animals with sterile clean air, which affects the reliability of breeding research and experiments. There was a problem.

The present invention has been made in view of the drawbacks of the above-mentioned conventional animal breeding rack, and supplies air uniformly over almost the entire space in the rack for storing the animal storing cage, and further, in the animal storing cage. The purpose of the present invention is to provide a rack structure for animal breeding in which sufficient air is supplied to eliminate the accumulation of air.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the animal breeding rack according to the present invention comprises a rack containing a plurality of cages for housing breeding animals, and an air supply port is provided on the front upper side of the cage, and the cage is opposed to this. In addition, in an animal breeding rack structure in which an exhaust port is provided on the lower rear side of the cage and a feeding means is provided on the front side of the upper surface of the cage, the air supplied from the air inlet is interlocked with the feeding means in conjunction with the feeding means. It is characterized in that a deflection means for directing the inside is formed.

In a preferred embodiment, the feeding means comprises a container receiving member for receiving a feeding container, and the container receiving member is rotatably mounted on a cage around an axis perpendicular to the cage loading / unloading direction. A deflector plate integrated with the container receiving member is provided on the front side of the container, and the container receiving member is rotated when the feeding container is inserted so that the deflector plate moves to a height covering the air supply port. There is.

[0008]

[Action]

 In the cage storage section at each stage in the rack, the air supply port is provided at the upper front side of the cage and the exhaust port is provided at the lower rear side of the cage corresponding to each cage. An air flow is formed that is almost evenly distributed throughout the rack from the top front to the bottom back, preventing air stagnation regions from being created in the rack. In addition, the deflecting means guides the air flow introduced into the rack to the inside of the cage, so that the animals kept in the cage are always sufficiently supplied with new sterile clean air to retain the odor. As a result, an optimal breeding environment for animals can be obtained.

[0009]

【Example】

 Hereinafter, an animal feeding rack according to an embodiment of the present invention will be further described with reference to the drawings. FIG. 1 is a front view of a rack for raising animals according to the present invention, and FIG. 2 is a side sectional view thereof.

The illustrated animal breeding rack (generally indicated by number 1) is installed in the animal breeding room 2. This animal breeding rack 1 comprises a rack body 3 having a housing structure and an exhaust chamber 4 formed on the back surface thereof, and an exhaust duct 5 communicating with an exhaust fan (not shown) is connected to the exhaust chamber 4. The inside of the rack body 3 is airtightly separated by a partition plate 13 into a plurality of stages (four stages in this example) in the vertical direction.

A plurality (five in this example) of cages 11 for accommodating animals are stored side by side in the rack body 3 so as to be slidable in a row and slidable from the front. Doors 6 are provided on the front surface of the rack body 3 for each of the four stages. This door 6 is provided with a hinge 7 on its upper part and can be opened and closed as shown by an arrow A (FIG. 2). 8 indicates a handle.

An air supply port 14 is provided at an upper portion on the front side of each stage of the rack body 3 (an upper portion of the door 6 in this embodiment) corresponding to each cage. Further, an exhaust port 10 is formed in the lower portion of the back side of the rack body 3 so as to correspond to the air supply port 14 of each cage. Each exhaust port 10 opens to the exhaust chamber 4. In this embodiment, a deflection plate 12 that is inclined rearward and downward is provided on the back surface side of each air supply port 14 in the vicinity thereof.

In such a configuration, by driving the exhaust fan communicating with the exhaust duct 5, the air in the breeding room 2 is introduced into the rack body 3 through the air supply ports 14 on the front surface of the rack and the exhaust ports 10 are introduced. Through the exhaust duct 4 and then discharged to the outside. At this time, in each stage of the rack that houses the cage 11, an air flow that flows almost uniformly over the entire rack internal space from the upper front portion to the lower rear portion is formed. It will not stay.

Further, in this embodiment, since the deflection plate 12 is provided on the rear surface side near the air supply port 14, as shown in FIG. The deflecting plate 12 guides the inside of the cage 11 to supply sufficiently fresh air to the animal R in the cage.

FIG. 4 shows a second embodiment of the present invention. In addition, in common with each of the embodiments described below, the same components as those of the first embodiment are designated by the same reference numerals.

In the embodiment shown in FIG. 4, the air introduced into the rack through the air supply port 14 is deflected toward the inside of the cage 11. Therefore, the top plate 9 at the rear portion in the depth direction of each cage 11 is used. The deflection box 17, which is formed of a material such as FRP, is fixed to the inside so as to project downward. The deflection box 17 may be provided separately for each cage so as to correspond to each air supply port 14, or may be formed continuously in the lateral direction of each stage in the rack. As a result, the air introduced from the air supply port 14 hits the front wall portion of the deflection box 17 and descends as it is, scavenging the inside of the cage 11 as indicated by the arrow, and thereafter, as in the first embodiment, the air around the cage 11 is discharged. The air flows out through the exhaust port 10 into the exhaust chamber 4. The deflection box 17 of this embodiment can increase the rigidity of the deflection means itself due to the relatively stable shape of the box body, and can be easily assembled. Other configurations and operational effects are similar to those of the first embodiment.

FIG. 5 shows a third embodiment of the present invention. In this embodiment, a deflection duct 18 communicating with the air supply port 14 is provided for the top plate 9 portion located on the front side of each stage in the rack. An outlet 19 made of, for example, a perforated plate is attached to the bottom surface of the deflection duct 18 at the position of each cage 11. Such deflection ducts 18 may be provided separately corresponding to the air supply ports 14 of each cage 11, or may be formed continuously in the lateral direction of each stage in the rack. With such a configuration, the air introduced from each air supply port 14 is guided into the cage 11 through a large number of holes of the blowout ports 19 and scavenges the inside of the cage. Other configurations and operational effects are similar to those of the first embodiment.

6 and 7 show a fourth embodiment of the present invention. In this embodiment, a container pedestal 20 for feeding is attached to the front portion of the upper surface of the cage 11 so as to be rotatable about an axis 22 perpendicular to the insertion direction of the cage 11 as indicated by arrow B. The container pedestal 20 includes a plate 20a on the front side of the shaft 22, a wire netting material 20b integrated on the plate 20a on the back side of the shaft 22, and a rear end portion of the wire netting material 20b inserted into the container receiving base 20a. It is bent upward to hold the container 21. In the empty state where the feeding container 21 is not placed, the container pedestal 20 is kept horizontally on the upper surface of the cage 11.

When a drink such as water or milk or other food is given, a feeding container 21 containing the drink or the food is inserted into the rack by opening the door 6 or directly through the air supply port 14. It is placed on the table 20. When the container 21 is pushed deeper than the shaft 22 of the container pedestal 20, the weight of the container pedestal 20 causes the container pedestal 20 to rotate around the shaft 22 and the plate 20a on the front side to move upward. As shown, move to a position that covers the air supply port 14. At this time, the end of the plate 20a may come into contact with the top plate 9 to stop the rising, or other suitable stopper means may be provided.

By inserting the feeding container 21 in this way, the container receiving base 20 rotates to cover the back side of the air supply port 14, and the plate 20 a guides the air introduced from the air supply port 14. The air from the air supply port 14 is guided to the inside of the cage 11 as shown. As a result, sufficient fresh air is supplied into the cage 11 containing the animal R. When the feeding container 21 is taken out, the operator can return the container cradle 20 in an oblique state to the horizontal state by hand or by an appropriate lever member (not shown) connected to the container cradle 20. Other configurations and operational effects are similar to those of the above-described first embodiment. The shape of the container pedestal 20 is not limited to the illustrated example, and any other suitable material can be used as long as it can hold the feeding container 21.

[0021]

[Effect of device]

 As described above, according to the present invention, in a rack accommodating a plurality of animal storage cages, an air supply port is provided on the upper front side of each cage, and the lower rear side of the cage corresponds to each air supply port. An air outlet is provided in the rack, and more preferably, a biasing unit that guides the air introduced from the air inlet into the cage by interlocking with the feeding unit is provided. In addition, sufficient fresh air is supplied to the animals in the cage to maintain a good breeding environment.

[Brief description of drawings]

FIG. 1 is a front view of an animal breeding rack equipped with the rack structure of the present invention.

FIG. 2 is a side sectional view of the rack shown in FIG.

FIG. 3 is an explanatory diagram of an air flow in a cage portion of the rack structure according to the embodiment of FIG.

FIG. 4 is a sectional view of a cage part showing a rack structure according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a cage part showing a rack structure according to a third embodiment of the present invention.

FIG. 6 is a sectional view of a cage part showing a rack structure according to a fourth embodiment of the present invention.

7 is an external perspective view of the rack structure of FIG.

[Explanation of symbols]

 1 ... Rack for animal breeding 2 ... Animal breeding room 3 ... Rack body 4 ... Exhaust chamber 5 ... Exhaust duct 6 ... Door 10 ... Exhaust port 11 ... Animal storage cage 12 ... Deflection plate 14 ... Air supply port 17 ... Deflection box 18 ... Deflection duct 20 ... Container cradle 21 ... Feeding container 22 ... Rotation axis of container cradle 20a ... Plate acting as deflection plate

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor, Hajime Yoshino 2-5-12 Kyobashi, Chuo-ku, Tokyo Toyo Heat Industrial Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A rack comprising a plurality of cages for accommodating domestic animals, which is provided with an air supply port on the front side upper part of the cage, and an exhaust port on the back side lower part of the cage facing the air supply port. In the rack structure for animal breeding provided with feeding means on the front side of the upper surface of the cage, a deflecting means for interlocking with the feeding means and directing the air supplied from the air supply port into the cage is formed. A rack structure for animal breeding characterized by 2. The feeding means comprises a container receiving member for receiving a feeding container, the container receiving member being rotatably mounted on a cage around an axis perpendicular to the cage inserting / removing direction, and on the front side of the axis. The deflection plate integrated with the container receiving member is provided, and when the feeding container is inserted, the container receiving member rotates so that the deflection plate moves to a height that covers the air supply port. The rack structure for animal breeding described.