JPH09238589A - Experimental animal breeding cage - Google Patents
Experimental animal breeding cageInfo
- Publication number
- JPH09238589A JPH09238589A JP5353796A JP5353796A JPH09238589A JP H09238589 A JPH09238589 A JP H09238589A JP 5353796 A JP5353796 A JP 5353796A JP 5353796 A JP5353796 A JP 5353796A JP H09238589 A JPH09238589 A JP H09238589A
- Authority
- JP
- Japan
- Prior art keywords
- cage
- filter
- lid
- opening
- cage body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Housing For Livestock And Birds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、マウス、ラット、
モルモット等の実験動物を飼育するための実験動物飼育
ケージに関するものである。TECHNICAL FIELD The present invention relates to a mouse, a rat,
The present invention relates to an experimental animal breeding cage for breeding experimental animals such as guinea pigs.
【０００２】[0002]
【従来の技術】従来の実験動物飼育ケージとしては、例
えば実公平４−４４０６５号公報に記載されたものがあ
り、この飼育ケージは、箱状のケージ本体と、縦断面略
Ｖ字状の給餌用凹陥部を有し、前記ケージ本体にその上
面開口部を覆うように取り付けられる金網蓋とからなる
もので、動物が収容されるケージ本体内部と外部とは金
網蓋によって仕切られているだけで、空気は自由に出入
りできるようになっている。2. Description of the Related Art As a conventional experimental animal breeding cage, for example, there is one described in Japanese Utility Model Publication No. 4-44065. This breeding cage has a box-shaped cage body and a V-shaped vertical section feeding. The cage has a metal mesh lid which is attached to the cage body so as to cover the upper opening of the cage body, and the inside and outside of the cage body for accommodating the animals are simply separated by the metal mesh lid. , The air can come and go freely.
【０００３】[0003]
【発明が解決しようとする課題】従来の実験動物飼育ケ
ージは、ケージ本体内部と外部とが金網蓋によって仕切
られているだけであるため、ケージ本体内の実験動物が
保有する病原菌が流出し、他の飼育ケージの実験動物や
実験者等を汚染したり、あるいは外部からの病原菌や塵
がケージ本体内に流入してその実験動物を汚染する、と
云った問題があり、特に近年における遺伝子組替えの実
験には大きな障害となっている。The conventional laboratory animal breeding cage has only the inside and outside of the cage body partitioned by the wire mesh lid, so that the pathogens of the laboratory animal in the cage body flow out, There is a problem that it contaminates laboratory animals and experimenters in other breeding cages, or that pathogens and dust from the outside flow into the cage body and contaminate the laboratory animals, especially genetic recombination in recent years. Is a major obstacle to the experiment.
【０００４】本発明は、上記の課題に鑑み、ケージ本体
内から外部への病原菌の流出、あるいは外部からケージ
本体内への病原菌や塵の流入を阻止して、飼育ケージ間
における実験動物相互の汚染、あるいは飼育ケージ内の
実験動物と人間との間の相互汚染を防ぐことのできる実
験動物飼育ケージを提供することを主たる目的とする。
本発明の他の目的は、以下の詳細な説明から明らかにさ
れよう。In view of the above-mentioned problems, the present invention prevents outflow of pathogenic bacteria from the inside of the cage body to the outside or inflow of pathogenic bacteria and dust from the outside into the cage body to prevent the mutual exchange of experimental animals between breeding cages. The main object of the present invention is to provide a cage for laboratory animals that can prevent contamination or cross-contamination between laboratory animals and humans in the cage.
Other objects of the invention will be apparent from the detailed description below.
【０００５】[0005]
【課題を解決するための手段】本発明の請求項１に係る
実験動物飼育ケージは、箱状のケージ本体１と、縦断面
略Ｖ字状の給餌用凹陥部３を有し、前記ケージ本体１内
にその上面開口部２を覆うように配置される内側金網蓋
４と、フィルター張着用開口部５を有し、前記内側金網
蓋４の上方に空気供給用空間部６を形成するように前記
ケージ本体１に被せられる箱状の上蓋７と、該上蓋７の
フィルター張着用開口部５に沿って配置され、空気の流
通は許すが病原菌等の通過を阻止するシート状のフィル
ター８と、前記フィルター張着用開口部５に前記フィル
ター８を介して配置されるフィルター押さえ用の外側金
網蓋９と、該外側金網蓋９の両端部に枢支連結され、遊
端部の係止部１０ａをケージ本体１両端部の被係止部に
係止することによって、内側金網蓋４、上蓋７、フィル
ター８及び外側金網蓋９をケージ本体１に対し固定する
ようにした両側一対のロック部材１０、１０と、からな
ることを特徴とする。A cage for laboratory animal breeding according to claim 1 of the present invention has a box-shaped cage main body 1 and a feeding concave portion 3 having a substantially V-shaped vertical cross section. 1 has an inner wire netting lid 4 arranged to cover the upper surface opening 2 and a filter tensioning opening 5, and an air supply space 6 is formed above the inner wire netting lid 4. A box-shaped upper lid 7 that covers the cage body 1, a sheet-shaped filter 8 that is arranged along the filter-tightening opening 5 of the upper lid 7 and that allows air to flow but prevents passage of pathogenic bacteria and the like; An outer wire mesh lid 9 for pressing the filter, which is arranged in the filter tensioning opening 5 through the filter 8, and pivotally connected to both ends of the outer wire mesh lid 9, and a locking portion 10a at the free end is provided. By locking to the locked parts at both ends of the cage body 1. Te, inner wire mesh lid 4, the upper lid 7, on both sides a pair of locking members 10, 10 so as to fix the filter 8 and the outer wire mesh cover 9 relative to the cage body 1, characterized in that it consists of.
【０００６】上記実験動物飼育ケージの使用にあたって
は、ケージ本体１内に実験動物Ｍを収容した後、このケ
ージ本体１に内側金網蓋４を被せ、給餌用凹陥部３内に
餌Ｆを所要量投入する。それから、上蓋７を被せ、この
上蓋７のフィルター張着用開口部５に沿ってフィルター
８を配置し、このフィルター８の上にフィルター押さえ
用の外側金網蓋９を載せ、そして上蓋７の両端部に枢支
連結してある各ロック部材１０を下向きに回動させ、そ
の係止部１０ａを、ケージ本体１側の被係止部に係止す
ればよい。このように、両ロック部材１０，１０をケー
ジ本体１両端部の被係止部に係止させることにより、フ
ィルター８が外側金網蓋９によってフィルター張着用開
口部５に沿って固定されると共に、外側金網蓋９によっ
て上蓋７がケージ本体１に固定され、またこの上蓋７に
よって内側金網蓋４がケージ本体１に固定され、斯くし
て内側金網蓋４、上蓋７、フィルター８及び外側金網蓋
９がケージ本体１に対し一体的に固定される。従って、
この実験動物飼育ケージが転倒しても、ケージ本体１、
内側金網蓋４、上蓋７、フィルター８及び外側金網蓋９
がバラバラに分離せず、ケージ本体１内部からの実験動
物Ｍの逃亡を防止できる。In using the above-mentioned laboratory animal breeding cage, after storing the laboratory animal M in the cage body 1, the cage body 1 is covered with the inner wire net lid 4, and the required amount of the bait F is placed in the feeding recessed portion 3. throw into. Then, the upper lid 7 is covered, the filter 8 is arranged along the filter attachment opening 5 of the upper lid 7, the outer wire mesh lid 9 for holding the filter is placed on the filter 8, and both ends of the upper lid 7 are placed. Each locking member 10 that is pivotally connected may be rotated downward, and the locking portion 10a may be locked to the locked portion on the cage body 1 side. In this way, by locking both lock members 10, 10 to the locked portions at both ends of the cage body 1, the filter 8 is fixed by the outer wire mesh lid 9 along the filter tensioning opening 5, and The upper wire 7 is fixed to the cage body 1 by the outer wire mesh lid 9, and the inner wire mesh lid 4 is fixed to the cage body 1 by the upper wire 7. Therefore, the inner wire mesh lid 4, the upper lid 7, the filter 8 and the outer wire mesh lid 9 are Are integrally fixed to the cage body 1. Therefore,
Even if this experimental animal breeding cage falls, the cage body 1,
Inner wire mesh lid 4, upper lid 7, filter 8 and outer wire mesh lid 9
Can be prevented from escaping from the inside of the cage body 1 without being separated.
【０００７】この実験動物飼育ケージにおいて、ケージ
本体１内への給気及びケージ本体１内からの排気は、上
蓋７のフィルター張着用開口部５に張着されるフィルタ
ー８を通じて行われ、しかしてこのフィルター８は、空
気の流通は許すが病原菌等の通過を阻止するため、ケー
ジ本体１が病原菌を保有していても、その病原菌が外部
に流出するおそれがなく、また外部からの病原菌や塵が
ケージ本体１内に流入するおそれがない。この場合、上
蓋７の内部に空気供給用空間部６が形成されるから、飼
育ケージ内部の空気容量を大きくとることができると共
に、その空気供給用空間部６内に外気を供給しておくこ
とができ、従って実験動物Ｍに対して十分な空気を供給
することができる。In this experimental animal breeding cage, air is supplied into the cage body 1 and exhausted from the cage body 1 through the filter 8 attached to the filter attachment opening 5 of the upper lid 7. Since this filter 8 allows the circulation of air but blocks the passage of pathogenic bacteria, etc., even if the cage body 1 holds the pathogenic bacteria, there is no risk of the pathogenic bacteria flowing out to the outside, and the pathogenic bacteria and dust from the outside are also prevented. There is no possibility that the oil will flow into the cage body 1. In this case, since the air supply space 6 is formed inside the upper lid 7, it is possible to increase the air volume inside the breeding cage and to supply the outside air into the air supply space 6. Therefore, sufficient air can be supplied to the experimental animal M.
【０００８】請求項２は、請求項１に記載の実験動物飼
育ケージにおいて、前記ケージ本体１には、その上面開
口部２の周縁に凸条部１１が周設されると共に該凸条部
１１の内側に係合段部１２が周設され、該係合段部１２
に、前記内側金網蓋４の外周枠４ａを形成するワイヤー
が係合されるようになっていることを特徴とする。従っ
て、これによれば、内側金網蓋４は、ケージ本体１に被
せた状態でガタつくことがなく、ケージ本体１に安定に
取り付けられる。According to a second aspect of the present invention, in the cage for raising experimental animals according to the first aspect, the cage main body 1 is provided with a ridge portion 11 around the upper surface opening 2 thereof, and the ridge portion 11 is provided around the ridge portion 11. The engagement step portion 12 is provided around the inside of the
In addition, the wire forming the outer peripheral frame 4a of the inner wire net cover 4 is engaged. Therefore, according to this, the inner wire net lid 4 is stably attached to the cage body 1 without rattling in the state of being covered with the cage body 1.
【０００９】請求項３は、請求項１または２に記載の実
験動物飼育ケージにおいて、前記上蓋７の下面開口部周
縁には、前記ケージ本体１の凸条部１１に密着嵌合する
凹条部１９が周設されていることを特徴とする。従っ
て、これによると、ケージ本体１に対する上蓋７の被嵌
部分の気密性を十分確保することができる。According to a third aspect of the present invention, in the cage for raising laboratory animals according to the first or second aspect, a concave streak portion which is closely fitted to the convex streak portion 11 of the cage body 1 is provided on the peripheral edge of the lower surface opening of the upper lid 7. It is characterized in that 19 are provided around. Therefore, according to this, the airtightness of the fitted portion of the upper lid 7 with respect to the cage body 1 can be sufficiently ensured.
【００１０】請求項４は、請求項１〜３のいずれかに記
載の実験動物飼育ケージにおいて、前記上蓋７は、両端
壁部７ａ，７ａ、前後側壁部７ｂ，７ｂ及び上壁部７ｃ
とからなり、該上蓋７の両端壁部７ａ，７ａと上壁部７
ｃとに亘ってフィルター張着用開口部５が形成されてい
ることを特徴としている。従って、これによれば、空気
の出入口を広くとることができ、また両端壁部７ａ，７
ａ側の開口部５部分から外気を有効に導入させることが
できると共に、上壁部７ｃ側の開口部５部分より有効に
排出させることができる。即ち、ケージ本体１内の空気
の温度は実験動物Ｍの体温で外気より高くなっているた
め、ケージ本体１内の温かい空気はそのまま上昇して上
壁部７ｃ側の開口部５部分より排出される一方、両端壁
部７ａ，７ａ側の開口部５部分から外気が導入されて、
飼育ケージ内で対流が有効に行われ、それによりケージ
本体１内部における温度及び湿度の上昇、更に実験動物
Ｍの排尿によるケージ本体１内部のアンモニアの濃度の
上昇を抑制することができる。A fourth aspect is the cage for raising experimental animals according to any one of the first to third aspects, wherein the upper lid 7 has both end wall portions 7a, 7a, front and rear side wall portions 7b, 7b and an upper wall portion 7c.
And both end wall portions 7a, 7a of the upper lid 7 and the upper wall portion 7
It is characterized in that a filter tensioning opening 5 is formed over the area c. Therefore, according to this, the inlet and outlet of the air can be widened, and the both end wall portions 7a, 7a
The outside air can be effectively introduced from the opening 5 part on the side a, and can be effectively discharged from the opening 5 part on the side of the upper wall 7c. That is, since the temperature of the air in the cage body 1 is higher than the outside air due to the body temperature of the experimental animal M, the warm air in the cage body 1 rises as it is and is discharged from the opening portion 5 on the upper wall portion 7c side. On the other hand, outside air is introduced from the openings 5 on both side wall portions 7a, 7a side,
The convection is effectively performed in the breeding cage, and thereby the temperature and humidity inside the cage body 1 can be prevented from increasing, and the concentration of ammonia inside the cage body 1 due to the urination of the experimental animal M can be suppressed.
【００１１】請求項５は、請求項１〜４のいずれかに記
載の実験動物飼育ケージにおいて、前記上蓋７のフィル
ター張着用開口部５周縁８ａに沿って係合段部２０が周
設され、該係合段部２０に前記フィルター８の周縁部が
支持されると共に、前記フィルター押さえ用の外側金網
蓋９の外周枠９ａを形成するワイヤーが前記フィルター
周縁部を介して前記係合段部２０に係合されるようにな
っていることを特徴とする。従って、これによれば、フ
ィルター８をフィルター張着用開口部５に対し確実に取
り付けることができる。A fifth aspect of the present invention is the cage for raising experimental animals according to any one of the first to fourth aspects, in which an engaging step portion 20 is provided along the periphery 8a of the filter-tightening opening 5 of the upper lid 7. The engaging step portion 20 supports the peripheral edge portion of the filter 8, and the wire forming the outer peripheral frame 9a of the outer wire mesh lid 9 for holding the filter holds the engaging step portion 20 through the filter peripheral edge portion. It is characterized in that it is adapted to be engaged with. Therefore, according to this, the filter 8 can be reliably attached to the filter-clad opening 5.
【００１２】請求項６は、請求項１〜５のいずれかに記
載の実験動物飼育ケージにおいて、前記上蓋７のフィル
ター張着用開口部５内には、複数のフィルター支持用骨
枠２１が配設されていることを特徴とする。従って、こ
れによると、フィルター８の中間部が上記支持用骨枠２
１に支持されるため、フィルター８全体をきわめて安定
な状態でフィルター張着用開口部５に張着することがで
きる。A sixth aspect of the present invention is the cage for raising experimental animals according to any of the first to fifth aspects, wherein a plurality of filter supporting bone frames 21 are arranged in the filter-tightening opening 5 of the upper lid 7. It is characterized by being. Therefore, according to this, the middle part of the filter 8 is the supporting frame 2
Since the filter 8 is supported by 1, the entire filter 8 can be attached to the filter attachment opening 5 in an extremely stable state.
【００１３】請求項７は、請求項１〜６のいずれかに記
載の実験動物飼育ケージにおいて、前記内側金網蓋４の
縦断面略Ｖ字状給餌用凹陥部３は、その下端部が縦断面
上向きコ字状の溝状に形成されていることを特徴とす
る。従って、これによると、給餌用凹陥部３に投入され
る筒片状の餌Ｆは、その下端部３ａのコ字状溝部に入り
込み、従って実験動物Ｍが当該下端部３ａから餌Ｆをつ
ついて食べようとするときに、餌Ｆが上記コ字状溝部内
で不都合に移動せず、非常に食べ易くなる。A seventh aspect of the present invention is the cage for raising experimental animals according to any one of the first to sixth aspects, wherein the lower end portion of the concave V-shaped feeding recess 3 of the inner wire netting lid 4 has a vertical cross section. It is characterized in that it is formed in an upward U-shaped groove shape. Therefore, according to this, the tubular piece-shaped food F thrown into the feeding recess 3 enters the U-shaped groove portion of the lower end portion 3a thereof, and therefore the experimental animal M pokes the food F from the lower end portion 3a. When trying to eat, the bait F does not move inconveniently in the U-shaped groove portion, and it becomes very easy to eat.
【００１４】請求項８は、請求項１〜７のいずれかに記
載の実験動物飼育ケージにおいて、フィルター８は不織
布からなることを特徴とする。これによれば、フィルタ
ー８のコストが安くつき、また使い捨てが可能で、交換
も容易である。An eighth aspect of the present invention is the cage for raising experimental animals according to any one of the first to seventh aspects, wherein the filter 8 is made of a non-woven fabric. According to this, the cost of the filter 8 is low, the filter 8 can be disposable, and the replacement is easy.
【００１５】請求項９は、請求項１〜８のいずれかに記
載の実験動物飼育ケージにおいて、前記ケージ本体１
は、両端壁部１ａ，１ａ、前後側壁部１ｂ，１ｂ及び底
壁部１ｃとからなり、前後側壁部１ｂ，１ｂの外壁面に
はケージ本体１の前記係合段部１２下面から下方へ該外
壁面の中間高さ位置まで延びる両側一対のリブ１３が前
後側壁部１ｂ，１ｂの対応する位置に突設され、各リブ
１３の下端に係合凸部１４が形成されると共に、各リブ
１３の上端部位に対応する前記ケージ本体１の係合段部
１２上面には前記係合凸部１４が係合する係合凹部１５
が形成されていることを特徴とする。A ninth aspect of the present invention is the cage for raising experimental animals according to any one of the first to eighth aspects, wherein the cage body 1
Consists of both end wall portions 1a, 1a, front and rear side wall portions 1b, 1b, and a bottom wall portion 1c. A pair of both side ribs 13 extending to the intermediate height position of the outer wall surface are provided at the corresponding positions of the front and rear side wall portions 1b, 1b so as to form engaging protrusions 14 at the lower ends of the ribs 13 and the ribs 13 respectively. An engaging concave portion 15 with which the engaging convex portion 14 engages on the upper surface of the engaging step portion 12 of the cage body 1 corresponding to the upper end portion of the
Is formed.
【００１６】従って、この請求項９の構成によると、ケ
ージ本体１を複数段に積み重ねて、これらのケージ本体
１に対し高圧蒸気や、ホルマリン等のガスによる消毒、
滅菌を施す際に、ケージ本体１相互間に蒸気やガスを有
効に流通させるための空間部Ｓを形成することができ、
それによって各ケージ本体１を、その内周壁面及び外周
壁面の全面にわたって確実に消毒、滅菌することができ
る。また、上下のケージ本体１，１を互いに所定の積み
重ね位置に位置決めすることができて、各ケージ本体１
を安定に保持することができる。Therefore, according to the structure of the ninth aspect, the cage bodies 1 are stacked in a plurality of stages, and the cage bodies 1 are sterilized by high-pressure steam or a gas such as formalin,
When performing sterilization, it is possible to form a space S for effectively circulating steam or gas between the cage bodies 1.
As a result, each cage body 1 can be surely disinfected and sterilized over the entire inner wall surface and outer wall surface thereof. Moreover, the upper and lower cage bodies 1, 1 can be positioned at predetermined stacking positions with respect to each other, and each cage body 1
Can be stably held.
【００１７】請求項１０は、請求項１〜９のいずれかに
記載の実験動物飼育ケージにおいて、前記上蓋７には前
後側壁部７ｂ，７ｂの外壁面に、上蓋７の凹条部１９側
から上方へ該外壁面の中間高さ位置まで延びる両側一対
のリブ２２，２２が前後側壁部７ｂ，７ｂの対応する位
置に突設され、各リブ２２の上端に係合凸部２３が形成
されると共に、各リブ２２の下端部位に対応する前記上
蓋７の凹条部１９下面には前記係合凸部２３が係合する
係合凹部２４が形成されていることを特徴とする。A tenth aspect is the cage for raising experimental animals according to any one of the first to ninth aspects, wherein the upper lid 7 is provided on the outer wall surfaces of the front and rear side wall portions 7b and 7b, and from the side of the recessed portion 19 of the upper lid 7. A pair of both side ribs 22 and 22 extending upward to the intermediate height position of the outer wall surface are projectingly provided at corresponding positions of the front and rear side wall portions 7b and 7b, and an engaging convex portion 23 is formed at an upper end of each rib 22. At the same time, an engaging concave portion 24 with which the engaging convex portion 23 is engaged is formed on the lower surface of the concave ridge portion 19 of the upper lid 7 corresponding to the lower end portion of each rib 22.
【００１８】この請求項１０にあっては、上蓋７を複数
段に積み重ねて、これらの上蓋７に対し高圧蒸気や、ホ
ルマリン等のガスによる消毒、滅菌を施す際に、上蓋７
相互間に蒸気やガスを有効に流通させるための空間部を
形成することができ、それによって各上蓋７を、その内
周壁面及び外周壁面の全面にわたって確実に消毒、滅菌
することができる。また、上下の上蓋７，７を互いに所
定の積み重ね位置に位置決めすることができて、各上蓋
７を安定に保持することができる。According to the tenth aspect of the present invention, the upper lids 7 are stacked in a plurality of stages, and when the upper lids 7 are sterilized by high-pressure steam or a gas such as formalin, the upper lids 7 are sterilized.
A space for effectively circulating steam or gas can be formed between them, whereby the upper lids 7 can be surely disinfected and sterilized over the entire inner peripheral wall surface and the outer peripheral wall surface. Further, the upper and lower upper lids 7, 7 can be positioned at a predetermined stacking position with respect to each other, and each upper lid 7 can be stably held.
【００１９】請求項１１は、請求項２〜１０のいずれか
に記載の実験動物飼育ケージにおいて、各ロック部材１
０は、ワイヤーを正面視略上向きコ字状で且つ側面視略
Ｌ字状に折曲して、両側一対の縦杆１０ｂ，１０ｂと、
両縦杆１０ｂ，１０ｂの下端からそれぞれ略直角内向き
に突出する突出杆１０ｃ，１０ｃと、両突出杆１０ｃ，
１０ｃをつなぐ略山形状の横杆１０ｄであってその山形
の頂部を係止部１０ａとした横杆１０ｄとを形成し、両
縦杆１０ｂ，１０ｂのそれぞれの上端部を外側金網蓋９
にそれぞれ枢支連結し、一方ケージ本体１の凸条部１１
を断面略下向きＵ字状に形成し、この凸条部１１の下端
開口溝部１１ａを被係止部として、この下端開口溝部１
１ａに前記係止部１０ａをスナップ式に係止するように
したことを特徴とする。An eleventh aspect of the present invention is the cage for raising experimental animals according to any one of the second to tenth aspects, wherein each lock member 1 is provided.
0 bends the wire in a substantially upward U-shape when viewed from the front and in a substantially L-shape when viewed from the side to form a pair of vertical rods 10b, 10b on both sides,
Protruding rods 10c and 10c protruding inwardly at substantially right angles from the lower ends of the vertical rods 10b and 10b, and the protruding rods 10c and 10c.
A horizontal rod 10d having a substantially mountain shape for connecting 10c is formed with a horizontal rod 10d having a top portion of the mountain as a locking portion 10a, and upper ends of both vertical rods 10b and 10b are provided with an outer wire mesh lid 9
And the ridge 11 of the cage body 1 on the other hand.
Is formed in a substantially downward U-shape in cross section, and the lower end opening groove portion 11a of the ridge 11 is used as a locked portion.
It is characterized in that the locking portion 10a is snap-locked to the la 1a.
【００２０】この請求項１１によれば、各ロック部材１
０の略山形状横杆１０ｄの山形頂部に設けた係止部１０
ａは、両突出杆１０ｃ，１０ｃによって両縦杆１０ｂ，
１０ｂよりもケージ本体１側に突出すると共に、略山形
状横杆１０ｄによって上向きに突出することになり、し
かして係止部１０ａをケージ本体１の被係止部に的確に
係合させることができる。この場合、ケージ本体１の被
係止部をケージ本体１の凸条部１１の下端開口溝部１１
ａとして、これに係止部１０ａを係止させるようにして
いるから、ケージ本体１に特別に被係止部を形成する必
要がなく、従ってケージ本体１の構造が簡単となる。ま
た、各ロック部材１０はワイヤーを折曲して形成したも
のであるから、ワイヤーの弾性を利用して、係止部１０
ａを被係止部たる凸条部１１の下端開口溝部１１ａに簡
単容易にスナップ式に係止させることができ、また上記
被係止部からの離脱も容易となる。According to the eleventh aspect, each locking member 1
Locking part 10 provided on the top of the chevron-shaped horizontal rod 10d
a is a pair of vertical rods 10b,
The cage 10 protrudes more toward the cage body 1 side than 10b, and also protrudes upward by the substantially mountain-shaped horizontal rod 10d, so that the locking portion 10a can be accurately engaged with the locked portion of the cage body 1. it can. In this case, the locked portion of the cage body 1 is connected to the lower end opening groove portion 11 of the protrusion 11 of the cage body 1.
Since the locking portion 10a is locked to this as a, it is not necessary to particularly form a locked portion on the cage body 1, and therefore the structure of the cage body 1 is simplified. Further, since each lock member 10 is formed by bending a wire, the elasticity of the wire is used to make the locking portion 10
It is possible to easily and easily snap a to the lower end opening groove portion 11a of the convex strip 11 that is the locked portion, and also to easily disengage from the locked portion.
【００２１】[0021]
【発明の実施の形態】図１は、本発明に係る実験動物飼
育ケージの使用状態をその前面側（後面側も同じ）から
見た一部切欠正面図、図２は同飼育ケージの使用状態を
その左側または右側から見た一部切欠側面図であり、ま
た図３は、同飼育ケージの分解斜視図である。これらの
図面から明らかなように、この実験動物飼育ケージは、
箱状のケージ本体１と、縦断面略Ｖ字状の給餌用凹陥部
３を有し、ケージ本体１内にその上面開口部２を覆うよ
うに配置される内側金網蓋４と、フィルター張着用開口
部５を有し、前記内側金網蓋４の上方に空気供給用空間
部６を形成するように前記ケージ本体１に被せられる箱
状の上蓋７と、この上蓋７のフィルター張着用開口部５
に沿って配置され、空気の流通は許すが病原菌等の通過
を阻止するシート状のフィルター８と、前記フィルター
張着用開口部５に前記フィルター８を介して配置される
フィルター押さえ用の外側金網蓋９と、この外側金網蓋
９の両端部に枢支連結され、遊端部の係止部１０ａ，１
０ａをケージ本体１の両端部の被係止部１０ｂ，１０ｂ
に係止することによって、内側金網蓋４、上蓋７、フィ
ルター８及び外側金網蓋９をケージ本体１に対し固定す
るようにした両側一対のロック部材１０，１０と、から
構成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a partially cutaway front view of the experimental animal breeding cage according to the present invention as seen from the front side (the rear side is also the same), and FIG. FIG. 3 is a partially cutaway side view of the same as seen from the left or right side thereof, and FIG. 3 is an exploded perspective view of the breeding cage. As is clear from these drawings, this laboratory animal cage
A box-shaped cage body 1, a feeding concave portion 3 having a substantially V-shaped vertical section, an inner wire mesh lid 4 arranged to cover the upper surface opening 2 in the cage body 1, and a filter tension A box-shaped upper lid 7 having an opening 5 and covering the cage body 1 so as to form an air supply space 6 above the inner wire net lid 4, and a filter-clad opening 5 of the upper lid 7.
A sheet-like filter 8 arranged along the air passage to allow the passage of air but to prevent the passage of pathogenic bacteria, and an outer wire mesh lid for holding the filter, which is arranged in the filter attachment opening 5 through the filter 8. 9 and the outer wire mesh lid 9 is pivotally connected to both ends of the outer wire mesh lid 9, and the free end engaging portions 10a, 1
0a is the locked portions 10b, 10b at both ends of the cage body 1.
The inner wire net cover 4, the upper cover 7, the filter 8 and the outer wire net cover 9 are fixed to the cage body 1 by a pair of lock members 10 on both sides.
【００２２】上記実験動物飼育ケージを構成する各構成
部材の構造について図４〜図１０を参照して更に詳しく
説明すれば、図４及び図５はケージ本体１の正面図及び
側面図を示しており、このケージ本体１は、透明性が良
好で耐熱性に優れ、しかも十分な強度を有する合成樹脂
であるポリカーボネートで一体形成されたもので、左右
両端壁部１ａ，１ａ、前後側壁部１ｂ，１ｂ及び底壁部
１ｃから構成される。このケージ本体１には、その上面
開口部２の周縁に凸条部１１が周設されると共に該突条
部の内側に係合段部１２が周設され、該係合段部１２
に、内側金網蓋４の外周枠４ａを形成するワイヤーが係
合されるようになっている。前記凸条部１１は、図１、
図２、図４及び図５に示すように、断面下向きＵ字状に
形成されて、下向きに開口する溝１１ａを有する。The structure of each component constituting the cage for raising experimental animals will be described in more detail with reference to FIGS. 4 to 10. FIGS. 4 and 5 show a front view and a side view of the cage body 1. The cage main body 1 is integrally formed of polycarbonate, which is a synthetic resin having good transparency, excellent heat resistance, and sufficient strength. The left and right end walls 1a, 1a, the front and rear side walls 1b, 1b and the bottom wall portion 1c. The cage main body 1 is provided with a projecting ridge portion 11 around the upper surface opening 2 thereof, and an engaging step portion 12 is provided inside the projecting ridge portion.
The wire forming the outer peripheral frame 4a of the inner wire net lid 4 is engaged with the. The ridge 11 is shown in FIG.
As shown in FIG. 2, FIG. 4 and FIG. 5, it has a groove 11 a which is formed in a U-shape with a downward cross section and opens downward.
【００２３】このケージ本体１の前後側壁部１ｂ、１ｂ
外壁面には、前記係合段部１２下面から下方へ該外壁面
の中間高さ位置まで垂直に延びる両側一対のリブ１３，
１３が前後側壁部１ｂ、１ｂの対応する位置に突設され
ていて、各リブ１３の下端に係合凸部１４が形成される
と共に、各リブ１３の上端部位に対応する前記係合段部
１２の上面には、ケージ本体１を積み重ねる際に他のケ
ージ本体１の係合凸部１４が係合する係合凹部１５が形
成されている（図３〜図５参照）。The front and rear side walls 1b, 1b of the cage body 1
The outer wall surface has a pair of ribs 13 on both sides extending vertically downward from the lower surface of the engagement step portion 12 to an intermediate height position of the outer wall surface.
13 are projectingly provided at corresponding positions of the front and rear side wall portions 1b, 1b, an engaging convex portion 14 is formed at a lower end of each rib 13, and the engaging step portion corresponding to an upper end portion of each rib 13 is formed. Engagement recesses 15 with which the engagement protrusions 14 of other cage bodies 1 engage when the cage bodies 1 are stacked are formed on the upper surface of 12 (see FIGS. 3 to 5).
【００２４】上記のように、ケージ本体１の前後側壁部
１ｂ、１ｂ外壁面に上記リブ１３を形成するのは、ケー
ジ本体１を複数段に積み重ねて、これらのケージ本体１
に対し高圧蒸気や、ホルマリン等のガスによる消毒、滅
菌を施す際に、ケージ本体１相互間に蒸気やガスを有効
に流通させるための空間部を形成すると共に、各ケージ
本体１相互を所定の積み重ね位置に位置決めするためで
ある。即ち、図５には、ケージ本体１を上下２段に積み
重ねた状態を示しており、実線で示される上段側ケージ
本体１の各リブ１３の係合凸部１４が、仮想線で示され
る下段側ケージ本体１の係合凹部１５に係合され、それ
により上下両ケージ本体１，１が互いに所定の積み重ね
位置に位置決めされて、安定に保持されると共に、上段
側ケージ本体１の外周壁面及び下壁面と、下段側ケージ
本体１の内周壁面及び底壁面との間に、前記高圧蒸気や
ホルマリン等のガスの流通用空間部Ｓが形成される。こ
の流通用空間部Ｓの形成によって、各ケージ本体１を、
その内周壁面及び外周壁面の全面にわたって確実にしか
も効果的に消毒、滅菌することができる。As described above, the ribs 13 are formed on the outer wall surfaces of the front and rear side walls 1b and 1b of the cage body 1 by stacking the cage bodies 1 in a plurality of stages and
On the other hand, when disinfecting and sterilizing with high-pressure steam or a gas such as formalin, a space is formed between the cage bodies 1 for effectively circulating the steam or gas, and the cage bodies 1 are separated from each other by a predetermined distance. This is for positioning at the stacking position. That is, FIG. 5 shows a state in which the cage main bodies 1 are stacked vertically in two stages, and the engaging protrusions 14 of the ribs 13 of the upper stage side main cage body 1 shown by solid lines are shown at lower stages shown by imaginary lines. The upper and lower cage bodies 1 and 1 are positioned in a predetermined stacking position with each other by being engaged with the engaging recesses 15 of the side cage body 1, and are stably held, and the outer peripheral wall surface of the upper cage body 1 and Between the lower wall surface and the inner peripheral wall surface and the bottom wall surface of the lower cage main body 1, a space S for flowing gas such as the high-pressure steam or formalin is formed. Due to the formation of the distribution space S, each cage body 1 is
It is possible to surely and effectively disinfect and sterilize the entire inner peripheral wall surface and the outer peripheral wall surface.
【００２５】次に、内側金網蓋４は、図１、図３及び図
６〜図８に示すように、比較的太いワイヤーからなる矩
形枠状の外周枠４ａと、格子状に組まれた比較的細いワ
イヤーからなる多数の縦桟４ｂ及び横桟４ｃとによって
構成されると共に、各縦桟４ｂの中間部が断面略Ｖ字状
に折曲されて給餌用凹陥部３が形成され、この給餌用凹
陥部３の両端面には略三角形の端板４ｄ，４ｄが取り付
けられている。また、給餌用凹陥部３の下端部３ａは、
これに対応する縦桟４ｂの部分が上向きコ字状に折曲さ
れることによって縦断面上向きコ字状の溝状に形成され
ている。もちろん、各端板４ｄの下端部も矩形状に形成
されている。この内側金網蓋４には、蓋取外し用の把手
１８が取り付けられている。Next, as shown in FIGS. 1, 3 and 6 to 8, the inner wire netting lid 4 and a rectangular frame-shaped outer peripheral frame 4a made of a comparatively thick wire are assembled in a grid pattern for comparison. It is composed of a large number of vertical bars 4b and horizontal bars 4c made of relatively thin wires, and the middle portion of each vertical bar 4b is bent into a V-shaped cross section to form a recessed portion 3 for feeding. Substantially triangular end plates 4d, 4d are attached to both end surfaces of the use recessed portion 3. Further, the lower end portion 3a of the feeding recessed portion 3 is
A portion of the vertical bar 4b corresponding thereto is bent in an upward U-shape to form a groove having an upward U-shape in vertical cross section. Of course, the lower end of each end plate 4d is also formed in a rectangular shape. A handle 18 for removing the lid is attached to the inner wire net lid 4.
【００２６】上記ように給餌用凹陥部３の下端部３ａが
縦断面上向きコ字状の溝状に形成されることによって、
給餌用凹陥部３に投入されるペレット状の餌Ｆは、その
下端部３ａのコ字状溝部に入り込み、従って図１に示す
ように実験動物Ｍが当該下端部３ａから餌Ｆをつついて
食べようとするときに、その餌Ｆが上記コ字状溝部内で
不都合に移動せず、非常に食べ易くなる。因みに、給餌
用凹陥部３の下端部が従来のもの（例えば実公平４−４
４０６５号公報に記載のもの）のように縦断面円弧状に
形成されていると、実験動物Ｍが餌Ｆをつつく時にその
餌Ｆが移動して、食べ難くなる。As described above, since the lower end portion 3a of the feeding recessed portion 3 is formed in a groove shape having an upwardly U-shaped vertical section,
The pellet-shaped bait F thrown into the feeding recess 3 enters the U-shaped groove of the lower end 3a thereof, and as shown in FIG. 1, the experimental animal M pokes the bait F from the lower end 3a and eats it. When doing so, the bait F does not move inconveniently in the U-shaped groove portion and becomes very easy to eat. By the way, the lower end portion of the feeding recessed portion 3 is a conventional one (for example, an actual fair 4-4).
(Described in Japanese Patent No. 4065), the longitudinal cross section is formed in an arc shape, and when the experimental animal M pokes the bait F, the bait F moves and becomes difficult to eat.
【００２７】また、上記内側金網蓋４は、ケージ本体１
に被せるときに、外周枠４ａがケージ本体１の係合段部
１２上に支持されると共に、この外周枠４ａを形成する
太線状のワイヤーが係合段部１２に対し図１に示すよう
に係合されるようになっており、従ってケージ本体１に
被せた状態でガタつくことがなく安定に取り付けられ
る。The inner wire net cover 4 is the cage body 1
The outer peripheral frame 4a is supported on the engaging stepped portion 12 of the cage body 1 when the outer peripheral frame 4a is covered with the thick wire wire forming the outer peripheral frame 4a as shown in FIG. The cage body 1 is engaged with the cage body 1, so that the cage body 1 can be stably attached without rattling.
【００２８】図９の（Ａ）及び（Ｂ）は、上蓋７を示す
正面図、側面図である。この図９、図１及び図３を参照
して明らかなように、上蓋７の下面開口部周縁には、ケ
ージ本体１の凸条部１１に密着嵌合する断面倒Ｕ字状の
凹条部１９が周設されており、これによってケージ本体
１に対する上蓋７の被嵌部分の気密性を十分確保できる
ようになっている。また、凹条部１９は、その内周壁部
１９ａ下端が、図１に示すようにケージ本体１の係合段
部１２上に支持される内側金網蓋４を上方から押さえつ
け、それによって内側金網蓋４を固定することができ
る。9 (A) and 9 (B) are a front view and a side view showing the upper lid 7. As is apparent from FIG. 9, FIG. 1 and FIG. 3, a concave strip portion having a U-shaped cross section which is closely fitted to the convex strip portion 11 of the cage body 1 is provided on the peripheral edge of the lower surface opening portion of the upper lid 7. 19 is provided around, so that the airtightness of the fitted portion of the upper lid 7 with respect to the cage body 1 can be sufficiently ensured. Further, the lower end of the inner peripheral wall portion 19a of the recessed portion 19 presses the inner wire net cover 4 supported on the engagement stepped portion 12 of the cage body 1 from above as shown in FIG. 4 can be fixed.
【００２９】この上蓋７は、前記ケージ本体１と同じ
く、透明性が良好で耐熱性に優れ、十分な強度を有する
ポリカーボネートで一体形成されたもので、両端壁部７
ａ，７ａ、前後側壁部７ｂ，７ｂ及び上壁部７ｃとから
構成され、そして前記フィルター張着用開口部５は、両
端壁部７ａ，７ａと上壁部７ｃとに亘って形成されてい
る。このフィルター張着用開口部５には、開口部周縁に
沿って係合段部２０が周設され、この係合段部２０に前
記フィルター８の周縁部が支持されると共に、前記フィ
ルター押さえ用外側金網蓋９の外周枠９ａを形成するワ
イヤーがフィルター８の周縁部を介して上記係合段部２
０に係合されるようになっており、このためフィルター
８は、フィルター張着用開口部５に対し確実に取り付け
られる。また、このフィルター張着用開口部５内には、
複数のフィルター支持用骨枠２１が配設されており、こ
れによってフィルター８が安定状態でフィルター張着用
開口部５に張着される。また、各端壁部７ａの下端部に
は、図３及び図９の（Ｂ）に示すように、水平方向に所
要長さ延びる突条部２６が突設されている。Like the cage body 1, the upper lid 7 is integrally formed of polycarbonate having good transparency, heat resistance, and sufficient strength.
a, 7a, front and rear side wall portions 7b, 7b and an upper wall portion 7c, and the filter tensioning opening portion 5 is formed across both end wall portions 7a, 7a and the upper wall portion 7c. An engaging step portion 20 is provided around the opening for attaching the filter 5 along the peripheral edge of the opening portion, and while supporting the peripheral edge portion of the filter 8 on the engaging step portion 20, the outer side for pressing the filter is also provided. The wire forming the outer peripheral frame 9a of the wire net lid 9 is provided with the engaging step 2 through the peripheral edge of the filter 8.
0, so that the filter 8 is securely attached to the filter tensioning opening 5. Also, in the filter-clad opening 5
A plurality of frame frames 21 for supporting the filter are arranged, whereby the filter 8 is attached to the filter attachment opening 5 in a stable state. Further, as shown in FIG. 3 and FIG. 9B, a ridge portion 26 that extends a required length in the horizontal direction is provided at the lower end portion of each end wall portion 7a.
【００３０】また、この上蓋７の前後側壁部７ｂ、７ｂ
外壁面には、前記凹条部１９の上面から上方へ該外壁面
の中間高さ位置まで垂直に延びる両側一対のリブ２２，
２２が前後側壁部７ｂ、７ｂの対応する位置に突設され
ていて、各リブ２２の上端に係合凸部２３が形成される
と共に、各リブ２２の下端部位に対応する上記凹条部１
９の下面側には、上蓋７を積み重ねる際に他の上蓋７の
係合凸部２３が係合する係合凹部２４が形成されてい
る。この係合凹部２４は、図９（Ａ）及び（Ｂ）に示す
ように、凹条部１９の内周壁部１９ａの所定箇所を切欠
することによって形成される。Further, front and rear side wall portions 7b, 7b of the upper lid 7
On the outer wall surface, a pair of ribs 22 on both sides extending vertically from the upper surface of the recessed portion 19 to the intermediate height position of the outer wall surface,
22 are projectingly provided at corresponding positions of the front and rear side wall portions 7b, 7b, the engaging projections 23 are formed on the upper ends of the ribs 22, and the recessed portions 1 corresponding to the lower end portions of the ribs 22 are formed.
On the lower surface side of 9, the engaging concave portion 24 with which the engaging convex portion 23 of the other upper lid 7 engages when the upper lids 7 are stacked is formed. As shown in FIGS. 9A and 9B, the engaging recess 24 is formed by cutting out a predetermined portion of the inner peripheral wall portion 19a of the recessed portion 19.
【００３１】上記のように、上蓋７の前後側壁部７ｂ、
７ｂ外壁面にリブ２２を形成するのは、前述したケージ
本体１の場合と全く同じ目的であって、上蓋７を複数段
に積み重ねて、これらの上蓋７に対し高圧蒸気や、ホル
マリン等のガスによる消毒、滅菌を施す際に、上蓋７相
互間に蒸気やガスを有効に流通させるための空間部を形
成すると共に、各上蓋７相互を所定の積み重ね位置に位
置決めするためである。従って、図示は省略するが、上
蓋７を上下に積み重ねる際に、下段側上蓋７の各リブ２
２の係合凸部２３が、上段側上蓋７の係合凹部２４に係
合され、それにより上下上蓋７が互いに所定の積み重ね
位置に位置決めされて、安定に保持されると共に、下段
側上蓋７の外周壁面及び上壁面と、上段側上蓋７の内周
壁面及び上壁面との間に、前記高圧蒸気やホルマリン等
のガスの流通用空間部が形成され、この流通用空間部の
形成によって、各上蓋７を、その内周壁面及び外周壁面
の全面にわたって確実に消毒、滅菌することができる。As described above, the front and rear side wall portions 7b of the upper lid 7,
The ribs 22 are formed on the outer wall surface of 7b for exactly the same purpose as in the case of the cage body 1 described above. The upper lids 7 are stacked in a plurality of stages, and high-pressure steam, gas such as formalin, etc. This is to form a space for effectively circulating steam or gas between the upper lids 7 when disinfecting or sterilizing the upper lids 7 and to position the upper lids 7 at predetermined stacking positions. Therefore, although not shown, when stacking the upper lids 7 in the vertical direction, each rib 2 of the lower upper lid 7 is stacked.
The second engaging projection 23 is engaged with the engaging recess 24 of the upper lid 7 so that the upper and lower lids 7 are positioned at predetermined stacking positions with respect to each other and are stably held, and the lower lid 7 on the lower side is held. Between the outer peripheral wall surface and the upper wall surface and the inner peripheral wall surface and the upper wall surface of the upper-side upper lid 7, a gas distribution space for the gas such as the high-pressure steam and formalin is formed. Each upper lid 7 can be surely disinfected and sterilized over the entire inner peripheral wall surface and outer peripheral wall surface.
【００３２】図１０の（Ａ）〜（Ｃ）は、外側金網蓋９
をロック部材１０と共に示す平面図、部分正面図及び部
分側面図で、これらの図及び図３から明らかなように、
外側金網蓋９は、比較的太いワイヤーによって前記フィ
ルター張着用開口部５の開口面に沿うような台形枠状に
形成された外周枠９ａと、格子状に組まれた比較的細い
ワイヤーからなる多数の縦桟９ｂ及び横桟９ｃとによっ
て構成され、外周枠９ａを形成する太線状のワイヤー
が、フィルター８の周縁部を介して上記係合段部２０に
係合されるようになっている。この外側金網蓋９には取
外し用の把手２５が取り付けられている（図１及び図３
参照）。10A to 10C show the outer wire netting lid 9
In a plan view, a partial front view and a partial side view showing the lock member 10 together with the lock member 10, as is clear from these figures and FIG.
The outer wire mesh lid 9 is composed of an outer peripheral frame 9a formed in a trapezoidal frame shape along the opening surface of the filter-clad opening 5 with a relatively thick wire, and a relatively thin wire assembled in a lattice pattern. The vertical wire 9b and the horizontal rail 9c are used to engage the thick wire wire forming the outer peripheral frame 9a with the engaging step portion 20 via the peripheral edge portion of the filter 8. A handle 25 for removal is attached to the outer wire mesh lid 9 (see FIGS. 1 and 3).
reference).
【００３３】この外側金網蓋９の両端部にロック部材１
０が取り付けられている。各ロック部材１０は、図３、
図１０に示すように、１本の太線状ワイヤーを正面視略
上向きコ字状で且つ側面視略Ｌ字状に折曲して、両側一
対の縦杆１０ｂ，１０ｂと、両縦杆１０ｂ，１０ｂの下
端からそれぞれ略直角内向きに突出する突出杆１０ｃ，
１０ｃと、両突出杆１０ｃ，１０ｃをつなぐ横杆１０ｄ
とを形成したもので、両縦杆１０ｂ，１０ｂのそれぞれ
の上端部１６，１６が、外側金網蓋９の外周枠９ａに形
成された枢支用屈曲部９ｄ，９ｄにそれぞれ枢支連結さ
れている。横杆１０ｄは、図２から明らかなように、両
端から中央部にかけて上向き傾斜状に延びる略山形に形
成されていて、その山形の頂部に、ケージ本体１の被係
止部に係止される係止部１０ａ，１０ａが形成されてい
ると共に、両係止部１０ａ，１０ａから下向き弯曲状に
延びる把手１０ｅが形成されている。尚、１０ｆは、両
縦杆１０ｂ，１０ｂに連結された太線状ワイヤーからな
る補強杆である。しかして、このロック部材１０の係止
部１０ａ，１０ａが係止される被係止部を、ケージ本体
１の上面開口部２周縁に周設された断面略下向きＵ字状
凸条部１１の下端開口溝部１１ａとし、この下端開口溝
部１１ａに上記係止部１０ａ，１０ａをスナップ式に係
止するようにしている。Locking members 1 are provided on both ends of the outer wire mesh lid 9.
0 is attached. Each locking member 10 is shown in FIG.
As shown in FIG. 10, one thick wire is bent in a substantially U-shape in a front view and a substantially L-shape in a side view to form a pair of vertical rods 10b, 10b on both sides, and both vertical rods 10b, Projecting rods 10c projecting inwardly from the lower end of 10b at substantially right angles,
10c and a horizontal rod 10d connecting the projecting rods 10c and 10c.
And the upper ends 16 and 16 of both vertical rods 10b and 10b are pivotally connected to the bending portions 9d and 9d for pivotal support formed on the outer peripheral frame 9a of the outer wire mesh lid 9, respectively. There is. As is apparent from FIG. 2, the horizontal rod 10d is formed in a substantially mountain shape extending upward from both ends to the central portion, and is locked to the locked portion of the cage body 1 at the top of the mountain shape. The locking portions 10a, 10a are formed, and a handle 10e extending downward from both locking portions 10a, 10a is formed. In addition, 10f is a reinforcing rod composed of a thick wire wire connected to both the vertical rods 10b and 10b. Then, the locked portions to which the locking portions 10a of the lock member 10 are locked are formed by the U-shaped ridges 11 having a substantially downward cross section, which are provided around the periphery of the top opening 2 of the cage body 1. The lower end opening groove portion 11a is formed, and the engaging portions 10a and 10a are engaged with the lower end opening groove portion 11a in a snap manner.
【００３４】しかして、各ロック部材１０の略山形状横
杆１０ｄの山形頂部に設けた係止部１０ａは、両突出杆
１０ｃ，１０ｃによって両縦杆１０ｂ，１０ｂよりもケ
ージ本体１側に突出すると共に、略山形状横杆１０ｄに
よって上向きに突出することになるから、この係止部１
０ａをケージ本体１の被係止部に的確に係合させること
ができる。この場合、ケージ本体１の被係止部をケージ
本体１の凸条部１１の下端開口溝部１１ａとして、これ
に係止部１０ａを係止させるようにしているから、ケー
ジ本体１に特別に被係止部を形成する必要がなく、従っ
てケージ本体１の構造が簡単となる。また、各ロック部
材１０はワイヤーを折曲して形成したものであるから、
ワイヤーの弾性を利用して、係止部１０ａを被係止部た
る凸条部１１の下端開口溝部１１ａに簡単容易にスナッ
プ式に係止させることができ、また上記被係止部からの
離脱も容易となる。Thus, the locking portion 10a provided on the mountain top of the substantially mountain-shaped horizontal rod 10d of each lock member 10 is projected toward the cage body 1 side more than both the vertical rods 10b and 10b by the two protruding rods 10c and 10c. At the same time, since it is projected upward by the substantially mountain-shaped horizontal rod 10d, the locking portion 1
0a can be accurately engaged with the locked portion of the cage body 1. In this case, since the locked portion of the cage body 1 is the lower end opening groove portion 11a of the protruding portion 11 of the cage body 1 and the locking portion 10a is locked to this, the cage body 1 is not particularly covered. It is not necessary to form a locking portion, so the structure of the cage body 1 is simple. Further, since each lock member 10 is formed by bending a wire,
By utilizing the elasticity of the wire, the locking portion 10a can be easily and easily locked in the lower end opening groove portion 11a of the protruding portion 11 which is the locked portion, and can be detached from the locked portion. Will also be easier.
【００３５】前記シート状のフィルター８は、空気の流
通が可能で病原菌等の通過を阻止することのできる不織
布からなるもので、上蓋７のフィルター張着用開口部５
周縁に形成された係合段部２０を外周とする平面形状の
面積よりも縦横にそれぞれ若干大きい形状に形成されて
いる。The sheet-shaped filter 8 is made of a non-woven fabric that allows air to flow and prevents passage of pathogenic bacteria and the like.
It is formed in a shape that is slightly larger vertically and horizontally than the area of the planar shape having the engagement step portion 20 formed on the peripheral edge as the outer periphery.
【００３６】以上のように構成される実験動物飼育ケー
ジの使用にあたって、各構成部材を分解した状態から、
先ず、ケージ本体１内に実験動物Ｍを収容し、このケー
ジ本体１に内側金網蓋４を被せて、この内側金網蓋４の
外周枠４ａをケージ本体１の係合段部１２に係合させ
る。そして、内側金網蓋４の給餌用凹陥部３内に図１に
示すようなペレット状（円筒状）の餌Ｆを所要量投入す
る。その後、上蓋７を被せて、その凹条部１９をケージ
本体１の係合段部１２に密着嵌合し、この凹条部１９の
内周壁部１９ａによって内側金網蓋４をケージ本体１の
係合段部１２上に押し付け固定する。それから、上蓋７
のフィルター張着用開口部５に沿ってフィルター８を配
置し、このフィルター８の上にフィルター押さえ用の外
側金網蓋９を載せて、この金網蓋９の外周枠９ａを、フ
ィルター８の周縁部８ａを介して上蓋７の係合段部２０
に係合させる。このとき、上記外周枠９ａの端部を、図
２に示すように、上蓋７の各端壁部７ａの下端部に突設
された突条部２６（破線で示す）の下側にフィルター８
の周縁部８ａを介して係止させ、それによってフィルタ
ー８を確実に固定する。しかして、各ロック部材１０を
下向きに回動させて、その係止部１０ａ，１０ａを、図
１に示すようにケージ本体１に突設された断面略下向き
Ｕ字状凸条部１１の下端開口溝部１１ａ（被係止部）
に、弾性を利用してスナップ式に係止させる。In using the experimental animal breeding cage configured as described above, from the state in which each constituent member is disassembled,
First, the experimental animal M is accommodated in the cage body 1, the cage body 1 is covered with the inner wire mesh lid 4, and the outer peripheral frame 4a of the inner wire mesh lid 4 is engaged with the engagement step portion 12 of the cage body 1. . Then, a required amount of pellet-shaped (cylindrical) bait F as shown in FIG. 1 is put into the feeding concave portion 3 of the inner wire net lid 4. Thereafter, the upper lid 7 is covered, and the recessed ridge portion 19 is closely fitted to the engagement step portion 12 of the cage body 1, and the inner wire mesh lid 4 is attached to the cage body 1 by the inner peripheral wall portion 19a of the recessed ridge portion 19. It is pressed and fixed onto the stepped portion 12. Then, the lid 7
The filter 8 is arranged along the filter tensioning opening 5, and an outer wire mesh lid 9 for pressing the filter is placed on the filter 8, and the outer peripheral frame 9a of the wire mesh lid 9 is attached to the peripheral edge 8a of the filter 8. Through the engaging step portion 20 of the upper lid 7.
To be engaged. At this time, as shown in FIG. 2, the filter 8 is provided with the end portion of the outer peripheral frame 9a below the protruding portion 26 (shown by a broken line) protruding from the lower end portion of each end wall portion 7a of the upper lid 7.
It is locked via the peripheral edge 8a, and thereby the filter 8 is securely fixed. Then, each locking member 10 is rotated downward so that the locking portions 10a, 10a of the locking members 10a, 10a project downwardly from the cage body 1 as shown in FIG. Opening groove part 11a (locked part)
In addition, using elasticity, it is locked in a snap type.
【００３７】上記のように、外側金網蓋９に枢支連結さ
れた両ロック部材１０，１０を、ケージ本体１両端部に
おいて凸条部１１の下端開口溝部１１ａ（被係止部）に
係止させることによって、フィルター８が外側金網蓋９
によりフィルター張着用開口部５に沿って押さえ付けら
れて固定されると共に、上記外側金網蓋９により上蓋７
がケージ本体１に対し押し付けられ、またこの上蓋７に
よって内側金網蓋４がケージ本体１に対し押し付けら
れ、斯くして内側金網蓋４、上蓋７、フィルター８及び
外側金網蓋９がケージ本体１に対し一体的に固定され
る。従って、この実験動物飼育ケージが転倒しても、内
側金網蓋４がケージ本体１から離脱することがなく、ケ
ージ本体１内の実験動物Ｍの逃亡を防止することがで
き、特に地震発生時に有効である。As described above, both lock members 10, 10 pivotally connected to the outer wire net lid 9 are locked to the lower end opening groove portions 11a (locked portions) of the ridges 11 at both ends of the cage body 1. By doing so, the filter 8 becomes the outer wire mesh lid 9
Is fixed by being pressed along the opening 5 for attaching the filter by the outside wire mesh lid 9 and the upper lid 7
Is pressed against the cage body 1, and the inner wire net lid 4 is pressed against the cage body 1 by the upper lid 7, and thus the inner wire mesh lid 4, the upper lid 7, the filter 8 and the outer wire mesh lid 9 are attached to the cage body 1. On the other hand, it is fixed integrally. Therefore, even if this experimental animal breeding cage falls, the inner wire netting lid 4 does not separate from the cage main body 1 and the escape of the experimental animal M in the cage main body 1 can be prevented, which is particularly effective when an earthquake occurs. Is.
【００３８】また、上記のように組み立てられた実験動
物飼育ケージにおいて、ケージ本体１内への給気及びケ
ージ本体１内からの排気は、上蓋７のフィルター張着用
開口部５に張着されるフィルター８を通じて行われ、し
かしてこのフィルター８は、空気の流通は許すが病原菌
等の通過を阻止するものであるから、ケージ本体１が病
原菌を保有していても、その病原菌が外部に流出するお
それがなく、また外部からの病原菌や塵がケージ本体１
内に流入するおそれがない。またこの場合、飼育ケージ
の内部と外部とはフィルター８を介して仕切られている
ため、外気の導入（給気）が十分に行われ難い傾向にあ
るが、上蓋７の内部に空気供給用空間部６が形成されて
いることから、飼育ケージ内部の空気容量を大きくとる
ことができると共に、その空気供給用空間部６内に外気
を供給しておくことができ、従って実験動物Ｍに対して
十分な空気を供給することができる。Further, in the experimental animal breeding cage assembled as described above, the air supply to the cage body 1 and the exhaust air from the cage body 1 are attached to the filter attachment opening 5 of the upper lid 7. This is done through the filter 8. Since this filter 8 allows the circulation of air but blocks the passage of pathogenic bacteria, etc., even if the cage body 1 holds the pathogenic bacteria, the pathogenic bacteria flow out to the outside. There is no danger, and pathogens and dust from the outside are not contained in the cage body 1
There is no danger of inflow. Further, in this case, since the inside and outside of the breeding cage are partitioned by the filter 8, it tends to be difficult to sufficiently introduce (supply) the outside air, but the space for supplying air is provided inside the upper lid 7. Since the part 6 is formed, the air volume inside the breeding cage can be made large, and the outside air can be supplied into the air supply space part 6, so that the experimental animal M can be supplied. Sufficient air can be supplied.
【００３９】また、フィルター張着用開口部５が上蓋７
の両端壁部７ａ，７ａと上壁部７ｃとに亘って形成され
ているため、空気の出入口を広くとることができ、そし
て両端壁部７ａ，７ａ側の開口部５部分から外気を有効
に導入させることができると共に、上壁部７ｃ側の開口
部５部分より有効に排出させることができる。即ち、ケ
ージ本体１内の空気の温度は実験動物Ｍの体温で外気よ
り高くなっているため、ケージ本体１内の温かい空気は
そのまま上昇して上壁部７ｃ側の開口部５部分より排出
される一方、両端壁部７ａ，７ａ側の開口部５部分から
外気が導入され、しかして飼育ケージ内で対流が有効に
行われ、それによりケージ本体１内部における温度及び
湿度の上昇、更に実験動物Ｍの排尿によるケージ本体１
内部のアンモニアの濃度の上昇を抑制することができ
る。Further, the filter-clad opening 5 has the upper lid 7.
Since it is formed over both end wall portions 7a, 7a and the upper wall portion 7c, a wide air inlet / outlet can be obtained, and outside air can be effectively discharged from the opening 5 portion on both end wall portions 7a, 7a side. It can be introduced and can be effectively discharged from the opening 5 portion on the upper wall portion 7c side. That is, since the temperature of the air in the cage body 1 is higher than the outside air due to the body temperature of the experimental animal M, the warm air in the cage body 1 rises as it is and is discharged from the opening portion 5 on the upper wall portion 7c side. On the other hand, outside air is introduced from the openings 5 on both side wall portions 7a, 7a side, so that convection is effectively performed in the breeding cage, thereby increasing temperature and humidity inside the cage main body 1, and further, the experimental animal. Cage body 1 by urination of M
It is possible to suppress an increase in the concentration of ammonia inside.
【００４０】また上記実験動物飼育ケージにおいて、フ
ィルター８を交換したり、内側金網蓋４の給餌用凹陥部
３への餌Ｆや水呑み具の補給を行うときは、各ロック部
材１０の把手１０ｅを外側へ引っ張ることにより、外側
金網蓋９に取付けてある係止部１０ａをケージ本体１の
凸条部１１の下端開口溝部１１ａ（被係止部）から離脱
させてロック解除し、しかしてこの外側金網蓋９を外せ
ば、フィルター８を簡単に取外すことができ、また上蓋
７を簡単に取り外すことができる。この場合、外側金網
蓋９を取り外すときは把手２５を持ち上げ、また内側金
網蓋４を取り外すときは把手１８を持ち上げることによ
って、それらの取外し作業が容易となる。When the filter 8 is replaced in the experimental animal breeding cage or the feeding recess 3 of the inner wire net lid 4 is to be replenished with the food F or the drinking cup, the handle 10e of each lock member 10 is to be replaced. By pulling outwardly, the locking portion 10a attached to the outer wire mesh lid 9 is disengaged from the lower end opening groove portion 11a (locked portion) of the ridge 11 of the cage body 1 to unlock. By removing the outer wire net lid 9, the filter 8 can be easily removed and the upper lid 7 can be easily removed. In this case, when the outer wire net cover 9 is removed, the handle 25 is lifted up, and when the inner wire net cover 4 is removed, the handle 18 is lifted up to facilitate the removal work.
【００４１】[0041]
【発明の効果】請求項１の実験動物飼育ケージによれ
ば、ロック部材の係止部をケージ本体側の被係止部に係
止させることによって、フィルターが外側金網蓋を介し
てフィルター張着用開口部に沿って固定されると共に、
外側金網蓋を介して上蓋がケージ本体に固定され、また
この上蓋を介して内側金網蓋がケージ本体に固定され、
斯くして内側金網蓋、上蓋、フィルター及び外側金網蓋
がケージ本体に対し一体的に固定されるから、飼育ケー
ジが転倒しても、ケージ本体、内側金網蓋、上蓋、フィ
ルター及び外側金網蓋がバラバラに分離せず、ケージ本
体内部からの実験動物の逃亡を防止でき、特に地震発生
時に有効である。このため、遺伝子組替えの実験には最
適な飼育ケージとなる。According to the experimental animal breeding cage of claim 1, the filter is attached through the outer wire netting lid by locking the locking portion of the locking member to the locked portion on the cage body side. Fixed along the opening,
The upper lid is fixed to the cage body via the outer wire mesh lid, and the inner wire mesh lid is fixed to the cage body via this upper lid,
Thus, since the inner wire net lid, the upper lid, the filter and the outer wire net lid are integrally fixed to the cage body, even if the breeding cage falls, the cage body, the inner wire net lid, the upper lid, the filter and the outer wire net lid are It does not separate into pieces and can prevent the escape of laboratory animals from inside the cage body, which is especially effective when an earthquake occurs. Therefore, it is an optimal breeding cage for genetic recombination experiments.
【００４２】特に、この実験動物飼育ケージのフィルタ
ーは、空気の流通は許すが病原菌等の通過を阻止するた
め、ケージ本体が病原菌を保有していても、その病原菌
が外部に流出するおそれがなく、また外部からの病原菌
や塵がケージ本体内に流入するおそれがない。従って、
ケージ本体内から外部への病原菌の流出、あるいは外部
からケージ本体内への病原菌や塵の流入を阻止できて、
飼育ケージ間における実験動物相互の汚染、あるいは飼
育ケージ内の実験動物と人間との間の相互汚染を防止で
きる。また、上蓋の内部に空気供給用空間部が形成され
るから、飼育ケージ内部の空気容量を大きくとることが
できると共に、その空気供給用空間部内に外気を供給し
ておくことができ、従って実験動物に対して十分な空気
を供給することができる。In particular, the filter of this cage for raising experimental animals allows the circulation of air but blocks the passage of pathogenic bacteria, so that even if the cage body contains pathogenic bacteria, there is no risk of the pathogenic bacteria flowing out. In addition, there is no risk of external germs or dust flowing into the cage body. Therefore,
It is possible to prevent the outflow of pathogenic bacteria from the inside of the cage body to the outside, or the inflow of pathogenic bacteria and dust from the outside into the cage body,
It is possible to prevent cross-contamination between laboratory animals between breeding cages or cross-contamination between laboratory animals and humans in breeding cages. In addition, since the space for air supply is formed inside the upper lid, it is possible to increase the air capacity inside the breeding cage and to supply the outside air to the space for air supply. Sufficient air can be supplied to the animal.
【００４３】請求項２によれば、内側金網蓋はケージ本
体に被せた状態でガタつくことがなく、従って内側金網
蓋をケージ本体に安定に取り付けることができる。According to the second aspect of the present invention, the inner wire netting lid does not rattle in the state of being covered with the cage body, so that the inner wire netting lid can be stably attached to the cage body.
【００４４】請求項３によれば、ケージ本体に対する上
蓋の被嵌部分の気密性を十分確保することができる。According to the third aspect, the airtightness of the fitted portion of the upper lid with respect to the cage body can be sufficiently ensured.
【００４５】請求項４によれば、上蓋の空気出入口を広
くとることができ、また該上蓋の両端壁部側開口部部分
から外気を有効に導入させることができると共に、上壁
部側開口部部分より有効に排出させることができる。即
ち、ケージ本体内の温かい空気はそのまま上昇して上壁
部側の開口部部分より排出される一方、両端壁部側の開
口部部分から外気が導入されて、飼育ケージ内で対流が
有効に行われ、それによりケージ本体内部における温度
及び湿度の上昇、更にケージ本体内部のアンモニアの濃
度の上昇を抑制することができる。According to the fourth aspect, the air inlet / outlet of the upper lid can be widened, and the outside air can be effectively introduced from the opening portions on both side wall portions of the upper lid, and the opening portion on the upper wall portion side. The part can be discharged more effectively. That is, the warm air in the cage body rises as it is and is discharged from the opening portion on the upper wall side, while the outside air is introduced from the opening portions on both end wall sides, and convection is effectively performed in the breeding cage. As a result, it is possible to suppress an increase in temperature and humidity inside the cage body and an increase in the concentration of ammonia inside the cage body.
【００４６】請求項５によれば、フィルターをフィルタ
ー張着用開口部に対し確実に取り付けることができる。According to the fifth aspect, the filter can be securely attached to the filter tensioning opening.
【００４７】請求項６によれば、フィルターの中間部が
上記支持用骨枠に支持されるため、フィルター全体をき
わめて安定な状態でフィルター張着用開口部に張着する
ことができる。According to the sixth aspect, since the intermediate portion of the filter is supported by the supporting frame, the entire filter can be attached to the filter attachment opening in an extremely stable state.
【００４８】請求項７によれば、実験動物が当該下端部
から餌をつついて食べようとするときに、餌が上記コ字
状溝部内で不都合に移動せず、非常に食べ易くなる。According to the seventh aspect, when the experimental animal tries to eat by poking the bait from the lower end, the bait does not move inconveniently in the U-shaped groove, and it becomes very easy to eat.
【００４９】請求項８によれば、フィルターのコストが
安くつき、また使い捨てが可能で、交換も容易となる。According to the eighth aspect, the cost of the filter is low, the filter is disposable, and replacement is easy.
【００５０】請求項９によれば、ケージ本体を複数段に
積み重ねて、これらのケージ本体に対し高圧蒸気や、ホ
ルマリン等のガスによる消毒、滅菌を施す際に、ケージ
本体相互間に蒸気やガスを有効に流通させるための空間
部を形成することができ、それによって各ケージ本体
を、その内周壁面及び外周壁面の全面にわたって確実に
消毒、滅菌することができる。またこの場合、上下のケ
ージ本体を互いに所定の積み重ね位置に位置決めするこ
とができて、各ケージ本体を安定に保持することができ
る。According to the ninth aspect, when the cage bodies are stacked in a plurality of stages and the cage bodies are disinfected and sterilized with a gas such as high-pressure steam or formalin, steam or gas is injected between the cage bodies. It is possible to form a space portion for effectively circulating the above, whereby it is possible to surely disinfect and sterilize each cage body over the entire inner peripheral wall surface and the outer peripheral wall surface. Moreover, in this case, the upper and lower cage bodies can be positioned at predetermined stacking positions, and the cage bodies can be stably held.
【００５１】請求項１０によれば、上蓋を複数段に積み
重ねて、これらの上蓋に対し高圧蒸気や、ホルマリン等
のガスによる消毒、滅菌を施す際に、上蓋相互間に蒸気
やガスを有効に流通させるための空間部を形成すること
ができ、それによって各上蓋を、その内周壁面及び外周
壁面の全面にわたって確実に消毒、滅菌することができ
る。またこの場合、上下の上蓋を互いに所定の積み重ね
位置に位置決めすることができて、各上蓋を安定に保持
することができる。According to the tenth aspect, when the upper lids are stacked in a plurality of stages and the upper lids are subjected to disinfection and sterilization with high-pressure steam or a gas such as formalin, the vapors and the gas are effectively applied between the upper lids. A space for circulation can be formed, whereby the upper lids can be surely disinfected and sterilized over the entire inner peripheral wall surface and the outer peripheral wall surface. Further, in this case, the upper and lower upper lids can be positioned at predetermined stacking positions, and each upper lid can be stably held.
【００５２】請求項１１によれば、各ロック部材の略山
形状横杆の山形頂部に設けた係止部は、両突出杆によっ
て両縦杆よりもケージ本体側に突出すると共に、略山形
状横杆によって上向きに突出することになり、しかして
係止部をケージ本体の被係止部に的確に係合させること
ができる。この場合、ケージ本体の被係止部をケージ本
体の凸条部の下端開口溝部として、これに係止部を係止
させるようにしているから、ケージ本体に特別に被係止
部を形成する必要がなく、従ってケージ本体の構造が簡
単となる。また、各ロック部材はワイヤーを折曲して形
成したものであるから、ワイヤーの弾性を利用して、係
止部を被係止部たる凸条部の下端開口溝部に簡単容易に
スナップ式に係止させることができ、また上記被係止部
からの離脱も容易となる。According to the eleventh aspect of the present invention, the locking portions provided on the mountain tops of the substantially mountain-shaped horizontal rods of the lock members project toward the cage main body side with respect to the both vertical rods by the both protruding rods, and have a substantially mountain shape. The lateral rod projects upward, and therefore, the locking portion can be accurately engaged with the locked portion of the cage body. In this case, since the locked portion of the cage body is used as the lower end opening groove portion of the protruding portion of the cage body and the locking portion is locked to this, the locked portion is specially formed on the cage body. There is no need and therefore the structure of the cage body is simple. In addition, since each locking member is formed by bending a wire, the elasticity of the wire is used to easily and easily snap the locking part to the lower end opening groove part of the ridge, which is the locked part. It can be locked and can be easily detached from the locked portion.
【図１】 本発明に係る実験動物飼育ケージの一部断面
正面図である。FIG. 1 is a partially sectional front view of a cage for raising experimental animals according to the present invention.
【図２】 同実験動物飼育ケージの一部断面側面図であ
る。FIG. 2 is a partial cross-sectional side view of the experimental animal breeding cage.
【図３】 同実験動物飼育ケージの分解斜視図である。FIG. 3 is an exploded perspective view of the same cage for raising experimental animals.
【図４】 ケージ本体の一部断面正面図である。FIG. 4 is a partial cross-sectional front view of the cage body.
【図５】 同ケージ本体の一部断面側面図である。FIG. 5 is a partial cross-sectional side view of the cage body.
【図６】 内側金網蓋の一部平面図である。FIG. 6 is a partial plan view of an inner wire net cover.
【図７】 同内側金網蓋の正面図である。FIG. 7 is a front view of the inner wire net cover.
【図８】 同内側金網蓋の側面図である。FIG. 8 is a side view of the inner wire net cover.
【図９】 （Ａ）は上蓋の一部断面正面図、（Ｂ）はそ
の一部断面側面図である。9A is a partially sectional front view of the upper lid, and FIG. 9B is a partially sectional side view thereof.
【図１０】 （Ａ）は外側金網蓋及びロック部材の一部
平面図、（Ｂ）はその正面図、（Ｃ）はその一部側面図
である。10A is a partial plan view of an outer wire netting lid and a lock member, FIG. 10B is a front view thereof, and FIG. 10C is a partial side view thereof.
１ ケージ本体 １ａ 端壁部 １ｂ 側壁部 １ｃ 底壁部 ２ 上面開口部 ３ 給餌用凹陥部 ３ａ 給餌用凹陥部の下端部 ４ 内側金網蓋 ４ａ 外周枠（ワイヤー） ５ フィルター張着用開口部 ６ 空気供給用空間部 ７ 上蓋 ７ａ 端壁部 ７ｂ 側壁部 ７ｃ 上壁部 ８ シート状フィルター ９ 外側金網蓋 ９ａ 外周枠（ワイヤー） １０ ロック部材 １０ａ 係止部 １０ｂ 縦杆 １０ｃ 突出杆 １０ｄ 横杆 １０ｅ 把手 １１ ケージ本体の凸条部 １２ ケージ本体の係合段部 １３ ケージ本体のリブ １４ 係合凸部 １５ 係合凹部 １９ 上蓋の凹条部 ２０ 係合段部 ２１ 支持用骨枠 ２２ リブ ２３ 係合凸部 ２４ 係合凹部 ２６ 突条部 1 Cage main body 1a End wall part 1b Side wall part 1c Bottom wall part 2 Top surface opening part 3 Recessed part for feeding 3a Lower end part of recessed part for feeding 4 Inner wire net cover 4a Outer frame (wire) 5 Filter tensioning opening 6 Air supply Space portion 7 Upper lid 7a End wall portion 7b Side wall portion 7c Upper wall portion 8 Sheet filter 9 Outer wire mesh lid 9a Outer peripheral frame (wire) 10 Lock member 10a Locking portion 10b Vertical rod 10c Projecting rod 10d Horizontal rod 10e Handle 11 Cage Convex portion of main body 12 Engagement step portion of cage body 13 Rib of cage body 14 Engagement convex portion 15 Engagement concave portion 19 Recessed rib portion of upper lid 20 Engagement step portion 21 Supporting frame 22 Rib 23 Engagement convex portion 24 engaging recess 26 protrusion
Claims (11)
給餌用凹陥部を有し、前記ケージ本体内にその上面開口
部を覆うように配置される内側金網蓋と、フィルター張
着用開口部を有し、前記内側金網蓋の上方に空気供給用
空間部を形成するように前記ケージ本体に被せられる箱
状の上蓋と、該上蓋のフィルター張着用開口部に沿って
配置され、空気の流通は許すが病原菌等の通過を阻止す
るシート状のフィルターと、前記フィルター張着用開口
部に前記フィルターを介して配置されるフィルター押さ
え用の外側金網蓋と、該外側金網蓋の両端部に枢支連結
され、遊端部の係止部をケージ本体両端部の被係止部に
係止することによって、内側金網蓋、上蓋、フィルター
及び外側金網蓋をケージ本体に対し固定するようにした
両側一対のロック部材と、からなる実験動物飼育ケー
ジ。1. A box-shaped cage body, an inner wire mesh lid which has a recessed portion for feeding having a substantially V-shaped vertical cross section and is arranged in the cage body so as to cover an upper opening thereof, and a filter tension. A box-shaped upper lid that has a wearing opening, and is covered with the cage body so as to form an air supply space above the inner wire mesh lid, and is disposed along the filter-tightening opening of the upper lid, A sheet-shaped filter that allows the passage of air but prevents passage of pathogenic bacteria, an outer wire mesh lid for holding the filter disposed in the filter tensioning opening through the filter, and both ends of the outer wire mesh lid. The inner wire mesh lid, the upper lid, the filter and the outer wire mesh lid are fixed to the cage body by locking the free end locking portion to the locked portions at both ends of the cage body. A pair of lock parts on both sides An experimental animal breeding cage consisting of materials.
縁に凸条部が周設されると共に該凸条部の内側に係合段
部が周設され、該係合段部に、前記内側金網蓋の外周枠
を形成する線状体が係合されるようになっている請求項
１に記載の実験動物飼育ケージ。2. The cage main body is provided with a ridge on the periphery of the upper surface opening, and an engagement step is provided inside the ridge, and the engagement step includes The laboratory animal breeding cage according to claim 1, wherein the linear bodies forming the outer peripheral frame of the inner wire net lid are engaged.
ージ本体の凸条部に密着嵌合する凹条部が周設されてい
る請求項１または２に記載の実験動物飼育ケージ。3. The cage for raising experimental animals according to claim 1, wherein a concave streak that closely fits a convex streak of the cage main body is provided around the lower surface opening of the upper lid.
上壁部とからなり、該上蓋の両端壁部と上壁部とに亘っ
てフィルター張着用開口部が形成されている請求項１〜
３のいずれかに記載の実験動物飼育ケージ。4. The upper lid includes both end wall portions, front and rear side wall portions, and an upper wall portion, and a filter tensioning opening portion is formed between the both end wall portions and the upper wall portion of the upper lid. 1 to
The cage for raising experimental animals according to any one of 3 above.
に沿って係合段部が周設され、該係合段部に前記フィル
ターの周縁部が支持されると共に、前記フィルター押さ
え用外側金網蓋の外周枠を形成するワイヤーが前記フィ
ルター周縁部を介して前記係合段部に係合されるように
なっている請求項１〜４のいずれかに記載の実験動物飼
育ケージ。5. An engagement step portion is provided along the periphery of the filter tensioning opening portion of the upper lid, the engagement step portion supports the peripheral edge portion of the filter, and the outer wire mesh lid for pressing the filter. The experimental animal breeding cage according to any one of claims 1 to 4, wherein the wire forming the outer peripheral frame is engaged with the engaging step portion through the filter peripheral portion.
は、複数のフィルター支持用骨枠が配設されている請求
項１〜５のいずれかに記載の実験動物飼育ケージ。6. The cage for raising experimental animals according to claim 1, wherein a plurality of bone frames for supporting the filter are arranged in the opening for attaching the filter to the upper lid.
凹陥部は、その下端部が縦断面上向きコ字状の溝状に形
成されている請求項１〜６のいずれかに記載の実験動物
飼育ケージ。7. The feeding recessed portion having a substantially V-shaped vertical cross section of the inner wire netting lid has a lower end formed in a groove shape having an upward U-shaped vertical cross section. Experimental animal breeding cage.
１〜７のいずれかに記載の実験動物飼育ケージ。8. The cage for raising experimental animals according to claim 1, wherein the filter is made of a non-woven fabric.
部及び底壁部とからなり、前後側壁部の外壁面にはケー
ジ本体の前記係合段部下面から下方へ該外壁面の中間高
さ位置まで延びる両側一対のリブが前後側壁部の対応す
る位置に突設され、各リブの下端に係合凸部が形成され
ると共に、各リブの上端部位に対応する前記ケージ本体
の係合段部上面には前記係合凸部が係合する係合凹部が
形成されている請求項１〜８のいずれかに記載の実験動
物飼育ケージ。9. The cage body comprises both end wall portions, front and rear side wall portions, and a bottom wall portion, and an outer wall surface of the front and rear side wall portions extends downward from the lower surface of the engaging step portion of the cage body to the middle of the outer wall surface. A pair of ribs on both sides extending to the height position are provided so as to project at corresponding positions of the front and rear side wall portions, engaging protrusions are formed at the lower ends of the ribs, and the cage main body corresponding to the upper end portion of each rib is engaged. The experimental animal breeding cage according to any one of claims 1 to 8, wherein an engaging concave portion with which the engaging convex portion engages is formed on an upper surface of the joining portion.
上蓋の凹条部側から上方へ該外壁面の中間高さ位置まで
延びる両側一対のリブが前後側壁部の対応する位置に突
設され、各リブの上端に係合凸部が形成されると共に、
各リブの下端部位に対応する前記蓋体の凹条部下面には
前記係合凸部が係合する係合凹部が形成されている請求
項１〜９のいずれかに記載の実験動物飼育ケージ。10. The outer wall of the front and rear side wall portions of the upper lid,
A pair of ribs on both sides extending upward from the concave portion side of the upper lid to the intermediate height position of the outer wall surface are projectingly provided at corresponding positions of the front and rear side wall portions, and an engaging convex portion is formed at an upper end of each rib. ,
The experimental animal breeding cage according to any one of claims 1 to 9, wherein an engaging concave portion with which the engaging convex portion engages is formed on a lower surface of the concave portion of the lid body corresponding to a lower end portion of each rib. .
視略上向きコ字状で且つ側面視略Ｌ字状に折曲して、両
側一対の縦杆と、両縦杆の下端からそれぞれ略直角内向
きに突出する突出杆と、両突出杆ｃをつなぐ略山形状の
横杆であってその山形の頂部を係止部とした横杆とを一
体に形成し、両縦杆のそれぞれの上端部を外側金網蓋に
それぞれ枢支連結し、一方ケージ本体の凸条部を断面略
下向きＵ字状に形成し、この凸条部の下端開口溝部を被
係止部として、この下端開口溝部に前記係止部をスナッ
プ式に係止するようにした請求項２〜１０のいずれかに
記載の実験動物飼育ケージ。11. Each of the locking members is formed by bending a wire into a substantially U-shape in a front view and an L-shape in a side view so that a pair of vertical rods on both sides and the lower ends of both vertical rods are substantially perpendicular to each other. An inwardly projecting rod and a substantially rod-shaped horizontal rod that connects both protruding rods c and has a mountain-shaped top as a locking portion are integrally formed, and the upper ends of both vertical rods are formed. The cage portion is pivotally connected to the outer wire mesh lid, and the ridge portion of the cage main body is formed in a U-shape with a substantially downward cross section, and the lower end opening groove portion of this ridge portion is used as a locked portion. The laboratory animal breeding cage according to any one of claims 2 to 10, wherein the locking portion is locked in a snap manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8053537A JP3017672B2 (en) | 1996-03-11 | 1996-03-11 | Laboratory animal rearing cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8053537A JP3017672B2 (en) | 1996-03-11 | 1996-03-11 | Laboratory animal rearing cage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09238589A true JPH09238589A (en) | 1997-09-16 |
| JP3017672B2 JP3017672B2 (en) | 2000-03-13 |
Family
ID=12945565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8053537A Expired - Lifetime JP3017672B2 (en) | 1996-03-11 | 1996-03-11 | Laboratory animal rearing cage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3017672B2 (en) |
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| FR2781640A1 (en) * | 1998-06-26 | 2000-02-04 | Products Lab Inc | CAGE FOR RODENTS OF MULTIPLE SPECIES |
| GB2342840A (en) * | 1998-06-26 | 2000-04-26 | Products Lab Inc | A lock for a rodent cage, including a visual alert |
| WO2000074473A3 (en) * | 1999-06-07 | 2001-09-07 | Products Lab Inc | Filter top for rodent cage |
| US6295950B1 (en) * | 1995-10-12 | 2001-10-02 | Lab Products, Inc. | Filter cap for an animal cage |
| US6336425B1 (en) * | 1998-06-26 | 2002-01-08 | Lab Products, Inc. | Multispecies rodent cage |
| GB2365314A (en) * | 1999-06-07 | 2002-02-20 | Products Lab Inc | Filter top for rodent cage |
| JP2003018932A (en) * | 2001-07-06 | 2003-01-21 | Toyo Netsu Kogyo Kk | Cage for rearing animal |
| WO2003059048A1 (en) * | 2002-01-17 | 2003-07-24 | Chean-Gui Park | Cage for breeding of lab animal |
| KR100664446B1 (en) * | 2004-09-16 | 2007-01-03 | 한국Trw자동차부품산업 주식회사 | Transporting box for laboratory animals |
| KR100932115B1 (en) * | 2008-12-31 | 2009-12-16 | (주) 쓰리샤인 | The rack for the laboratory animal |
| JP2011500033A (en) * | 2007-10-12 | 2011-01-06 | ハイドロパック ラブ プロダクツ インコーポレイテッド | Fluid delivery valve adapter |
| WO2011014584A1 (en) * | 2009-07-28 | 2011-02-03 | Doskocil Manufacturing Company, Inc. | Pet kennel with mesh top |
| JP2012029618A (en) * | 2010-07-30 | 2012-02-16 | Nippon Kurea Kk | Cage for raising experimental animal |
| JP2012029619A (en) * | 2010-07-30 | 2012-02-16 | Nippon Kurea Kk | Cage for raising experimental animal |
| CN103299915A (en) * | 2013-06-06 | 2013-09-18 | 苏州新区枫桥净化设备厂 | Novel portable experimental cage |
| JP2015146790A (en) * | 2014-02-10 | 2015-08-20 | 株式会社アイ・シー・エム | Lid for breeding cage |
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1996
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Cited By (21)
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|---|---|---|---|---|
| US6295950B1 (en) * | 1995-10-12 | 2001-10-02 | Lab Products, Inc. | Filter cap for an animal cage |
| US6341581B1 (en) * | 1998-06-26 | 2002-01-29 | Lab Products, Inc. | Multispecies rodent cage |
| GB2342840A (en) * | 1998-06-26 | 2000-04-26 | Products Lab Inc | A lock for a rodent cage, including a visual alert |
| GB2342840B (en) * | 1998-06-26 | 2000-07-26 | Products Lab Inc | Multispecies rodent cage |
| FR2781640A1 (en) * | 1998-06-26 | 2000-02-04 | Products Lab Inc | CAGE FOR RODENTS OF MULTIPLE SPECIES |
| US6336425B1 (en) * | 1998-06-26 | 2002-01-08 | Lab Products, Inc. | Multispecies rodent cage |
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| JP2014076064A (en) * | 1999-06-07 | 2014-05-01 | Lab Prod Inc | Filter top for rodent |
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| JP2003018932A (en) * | 2001-07-06 | 2003-01-21 | Toyo Netsu Kogyo Kk | Cage for rearing animal |
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| JP2011500033A (en) * | 2007-10-12 | 2011-01-06 | ハイドロパック ラブ プロダクツ インコーポレイテッド | Fluid delivery valve adapter |
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| JP2012029618A (en) * | 2010-07-30 | 2012-02-16 | Nippon Kurea Kk | Cage for raising experimental animal |
| JP2012029619A (en) * | 2010-07-30 | 2012-02-16 | Nippon Kurea Kk | Cage for raising experimental animal |
| CN103299915A (en) * | 2013-06-06 | 2013-09-18 | 苏州新区枫桥净化设备厂 | Novel portable experimental cage |
| JP2015146790A (en) * | 2014-02-10 | 2015-08-20 | 株式会社アイ・シー・エム | Lid for breeding cage |
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