JP2015084703A - Animal breeding rack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an animal breeding rack that can house cages of various sizes without impairing the effect provided to a rack of negative pressure one-way flow, and can breed multiple kinds of animals according to purpose by using an identical rack.SOLUTION: An animal breeding rack 1 includes: a shelf body 2 housing multiple shelf boards 3; a rail unit 5 coming into close contact with a full length of the right and left upper edges of cages 4; a backing plate 9 coming into close contact with the full length of the rear side upper edges of the cages 4; an upper space 10 formed on the upper parts of the cages 4 and opened on the front surface side of the shelf body 2; an exhaust chamber arranged at the rear side of the shelf body 2; and an exhaust flow path 13 penetrating through a back plate 2d of the shelf body and bringing the exhaust chamber into communication with the upper space 10. The cages 4 comprise multiple kinds having specified width length A, B being the length in the width direction according to the sizes of farm animals. A rail unit 5 is movably attached to the shelf boards 3 in the right and left direction according to the specified width length A, B.

Description

  The present invention relates to an animal breeding rack. More specifically, the present invention relates to an animal breeding rack in which an air flow is formed in one direction.

  A negative pressure unidirectional animal breeding rack is known as an animal breeding rack (see, for example, Patent Document 1). This negative pressure unidirectional animal breeding rack draws air from the exhaust vent on the rear of the shelf, creating negative pressure in the cage housed in the shelf and negative air flow in the opening on the front of the cage. Maintain one-way flow. Thus, experimental animals are raised by supplying air-conditioned or purified indoor air into the cage without leaking odors or allergenic substances from the animals in the cage into the room in front of the shelf.

  The cages for housing the animals have different sizes according to the size of the animals to be reared, for example, for mice and rats. The cage is accommodated by sliding along a guide rail previously attached to the shelf. However, since the guide rail is fixedly attached to the shelf, the cage storage space defined by the guide rail can accommodate only a fixed cage for the mouse and the rat for the rat. I couldn't. In an animal breeding facility, breeding is performed by changing the type of animal (mouse, rat, etc.) for the purpose of animal experiments, and there is a demand to apply the same breeding rack to all animals. There is also a desire to simultaneously breed different animals in the same breeding rack.

Japanese Patent No. 4191565

  The present invention is based on the above-described prior art, and can accommodate various sizes of cages without impairing the effects of the negative pressure unidirectional rack. An object of the present invention is to provide an animal breeding rack capable of breeding a plurality of types of animals.

  In order to achieve the above object, in the present invention, a shelf main body that accommodates a plurality of shelf boards arranged in parallel in the vertical direction at intervals, and a rearing animal that is attached to the lower side of the shelf board and accommodates domestic animals. A rail unit that is in close contact with the entire length of the upper left and right edges of the cage, and a receiving plate that is provided on the rear side of the shelf body and that is in close contact with the entire length of the rear upper edge of the cage. The rail unit is movably attached to the shelf plate in the left-right direction according to the specified width length. An animal breeding rack is provided.

  Preferably, the animal breeding rack includes an upper space formed above the cage by the rail unit and the receiving plate and having the front side of the shelf body opened, and an exhaust chamber disposed on the rear side of the shelf body. And an exhaust passage that passes through the rear plate of the shelf body and communicates the exhaust chamber with the upper space.

  Preferably, the rail unit includes a guide rail that slides right and left upper edges of the cage to be accommodated in the shelf body, and a fixing jig that fixes the guide rail to the shelf plate. A hanging plate that hangs downward from the shelf plate, and a receiving plate on which flanges that protrude from the left and right upper edges of the cage in the left and right directions are projected in succession to the upper space. And a protruding piece that protrudes from the rear side of the hanging plate and fits into a fitting hole formed in the rear plate of the shelf body, and the fixing jig is fixed to the front surface of the shelf plate. A fixing plate and a locking piece that protrudes into the shelf continuously with the fixing plate and locks the drooping plate to the shelf plate, and the fitting hole is formed with respect to the rear plate. A plurality are formed at intervals in the left-right direction.

  Preferably, the cage has a specified depth length that is a length in a depth direction corresponding to a size of the domestic animal, and the rail unit is configured so that the cage unit with respect to the inside of the shelf body corresponds to the specified depth length. A stopper piece for positioning in the front-rear direction is provided.

  Preferably, when the longest height cage having the longest length in the height direction among the plurality of types of cages is attached to the rail unit, the interval between the shelf plates is set between the bottom surface of the longest height cage and the The shelf is set to touch.

  According to the present invention, the cage is composed of a plurality of types having a specified width length that is a length in the width direction according to the size of the domestic animal, and the rail unit is attached to the shelf board according to the specified width length. Since it is movably mounted in the left-right direction, the mounting position of the rail unit can be appropriately changed in accordance with various sizes of cages. For this reason, cages of various sizes can be accommodated without impairing the effects of the rack of negative pressure unidirectional flow, and animals according to the purpose can be raised using the same rack.

  In addition, by forming the rail unit with the guide rail and the fixing jig, the position of the rail unit can be quickly changed with a simple structure, and the handleability is improved.

  In addition, even when the depth of the cage differs depending on the size of the breeding animal, positioning in the front-rear direction can be performed using a stopper piece whose attachment position is movable in the depth direction, so that it can be reliably left, right, and rear. An upper space whose side is sealed can be formed.

  In addition, when the longest height cage among multiple types of cages is attached to the rail unit, the shelf is set so that it touches the bottom surface of the longest height cage. It is possible to increase the number of shelves by narrowing the interval between the shelves while ensuring the thickness, and consequently increase the number of cages that can be accommodated.

It is a schematic front view of the animal breeding rack which concerns on this invention. It is a schematic sectional drawing of the animal breeding rack which concerns on this invention. It is a schematic perspective view of a guide rail. It is a schematic side view of a guide rail. It is a schematic sectional drawing which shows the accommodation state of a cage. It is a schematic sectional drawing which shows the shelf main body rear side at the time of cage accommodation. It is the schematic (upward view from the diagonal side) which shows the attachment method of a guide rail. It is the schematic (upward view from the diagonal side) which shows the attachment method of a guide rail.

  As shown in FIGS. 1 and 2, an animal breeding rack 1 according to the present invention includes a shelf body 2 formed of plates (top plate 2a, bottom plate 2b, left and right side plates 2c, rear plate 2d) that define the outer shape. It has. The plate body includes one formed by bending a thin plate. The plate body forming the shelf main body 2 has no front plate on the front side, and therefore the shelf main body 2 has an open front surface. The shelf body 2 is provided with a plurality of shelf boards 3. The shelf boards 3 are arranged in parallel in the vertical direction with a space between them. A cage 4 for accommodating domestic animals is disposed in a space formed between the shelf boards 3. The cage 4 has various sizes according to the size of domestic animals to be accommodated, such as mice and rats. In this embodiment, an example in which a mouse cage 4a and a rat cage 4b are housed in the same animal breeding rack 1 is shown.

  Rail units 5 are respectively attached to the lower side of the shelf board 3. The rail unit 5 has a guide rail 6 and a fixing jig 7. As shown in FIGS. 3 and 4, the guide rail 6 has a substantially C-shaped cross section, and an upper plate 6 a that is in close contact with the lower surface of the shelf plate 3 and a lower side from the shelf plate 3 that is continuous with the upper plate 6 a. It is formed of a hanging plate 6b that hangs down (downward) and a receiving plate 6c that is continuous with the hanging plate 6b and is arranged substantially parallel to the upper plate 6a. The rail unit 5 is attached to the shelf 3 in the left-right direction with an appropriate interval. At this time, the open portions having a substantially C-shaped cross section of the guide rail 6 face each other to form a pair. In the example of FIG. 3, an example is shown in which a hanging plate 6 b of a portion where a pair of guide rails 6 are adjacent is in contact. This contacting portion may be integrated by welding.

  On the other hand, a flange 8 protruding outward from the upper edge of the cage 4 is formed, and the left and right flanges 8a are in close contact with the receiving plate 6c of the guide rail 6 as shown in FIG. . The flange portion 8a is in close contact with the receiving plate 6c over its entire length. Here, as shown in FIG. 6, the guide rail 6 is in close contact with the rear plate 2 d of the shelf body 2. A receiving plate 9 as a close contact portion is attached to the rear plate 2d so as to protrude into the shelf body 2. The receiving plate 9 is in close contact with the flange 8b on the rear upper edge of the cage 4 when the cage 4 is accommodated. The flange portion 8b is in close contact with the receiving plate 9 over its entire length. Accordingly, since the flange portion 8a and the receiving plate 6c are in close contact with each other, and the flange portion 8b and the receiving plate 9 are in close contact with each other, the space defined by the pair of guide rails 6 and the rear plate 2d and above the cage 4 is provided. Is formed as an upper space 10 in which only the front surface of the shelf body 2 is opened. The flanges 8a and 8b and the receiving plates 6c and 9 may be in close contact so that the air flowing through the upper space 10 does not flow to the side of the cage 4 beyond the flanges 8a and 8b. An abutting piece 9 a that hangs obliquely downward continuously from the tip of the receiving plate 9 is formed. On the other hand, plate-shaped cage flange reinforcement members 21 projecting outward are formed at the four corners of the cage. The abutting piece 9a abuts against the cage flange reinforcing member 21, whereby the position of the cage 4 is defined. The receiving plate 9 may be formed integrally with the rear plate 2d.

  An exhaust chamber 11 is formed on the rear side of the shelf body 2 via a rear plate 2d. The exhaust chamber 11 is formed over the entire back surface of the shelf body 2 and communicates with an exhaust duct 12 disposed on the upper side. The rear plate 2d is provided with a through hole as an exhaust passage 13, and the exhaust duct 12 and the upper space 10 communicate with each other through the exhaust passage 13.

  As described above, the cage 4 includes the mouse cage 4a and the rat cage 4b, and the cage 4a and the cage 4b have different sizes. Specifically, each cage 4a, 4b has designated width lengths A and B which are lengths in the width direction (left-right direction). That is, the lengths in the width direction are different between the cages 4a and 4b. The rail unit 5 described above is movably attached to the shelf 3 in the left-right direction according to the designated width lengths A and B of the cages 4a and 4b. Since the mounting position of the rail unit 5 can be changed in this way, the mounting position of the rail unit 5 can be appropriately changed according to the cages 4a and 4b of various sizes, and the rack 1 having a negative pressure one-way flow has. The cages 4a and 4b of various sizes can be accommodated without impairing the effect, and animals can be raised according to the purpose using the same rack 1. For example, as shown in FIG. 1, only a mouse cage 4a is provided at one stage, only a rat cage 4b is provided at one stage, and a mouse cage 4a and a rat cage 4b are alternately provided at another stage. Can be accommodated.

  Such movement of the rail unit 5 is realized by the following structure. In addition to the exhaust flow path 13 described above, a slit-like fitting hole 14 is formed through the rear plate 2d where the upper space 10 is formed. That is, the fitting hole 14 faces the upper space 10. A plurality of the fitting holes 14 are formed in the rear plate 2d with a predetermined interval. As shown in FIG. 7, a protruding piece 15 protruding from the rear side of the hanging plate 6b of the guide rail 6 is fitted into the fitting hole 14 (arrow E). Since the interval between the fitting holes 14 is formed corresponding to each of the cages 4a and 4b, the position at which the protruding piece 15 of the guide rail 6 is fitted to any of the cages 4a and 4b is accommodated. It can be applied to the specified width lengths A and B by changing.

  The position of the guide rail 6 is fixed by the fixing jig 7 in a state where the upper plate 6 a is in close contact with the upper shelf plate 3 with the protruding piece 15 fitted in the fitting hole 14. The fixing jig 7 includes a fixing plate 7a and a locking piece 7b formed continuously with the fixing plate 7a. The fixed plate 7a is fixed to the front surface of the shelf plate 3 with screws 16 (bundling jig). At this time, as shown in FIG. 8, the locking piece 7b sandwiches the hanging plate 6b, and the locking piece 7b and the hanging plate 6b are locked to each other. That is, when the fixing plate 7a is fixed to the shelf plate 3, the locking piece 7b protrudes toward the inside of the shelf body 2 and is divided into two forks to sandwich the hanging plate 6b. As a result, the guide rail 6 is fixed to the fitting hole 14 on the rear side and the fixing jig 7 on the front side, so that the guide rail 6 is fixed to the lower side of the shelf 3 as a result. Thus, the movable operation of the guide rail 6 can be performed only by the work of fitting the protruding piece 15 into the fitting hole 14 and the work of fixing by the fixing jig 7, so that the position of the rail unit can be quickly determined with a simple structure. Can be changed, and handling is improved.

  Further, as described above, since the sizes of the cages 4a and 4b are different from each other, not only the width direction but also the length in the depth direction is different depending on the cages 4a and 4b. Even if the cages 4a and 4b are brought into close contact with the receiving plate 9, the cages 4a and 4b move to the front side when there is some vibration, so that the flange 8b is separated from the receiving plate 9 to seal the upper space 10 There may be a situation that cannot be maintained. Therefore, the guide rail 6 is provided with stopper pieces 17 at positions corresponding to designated depth lengths C and D, which are lengths in the depth direction of the cages 4a and 4b.

  As shown in FIGS. 3 and 4, the stopper piece 17 is formed so as to protrude on the receiving plate 6 c. Specifically, the stopper piece 17 made of a resin material is formed by screws fixed from the lower side of the receiving plate 6c. A hole through which the screw passes through the receiving plate 6c may be formed as a long hole so that the position of the stopper piece 17 can be finely adjusted. Thereby, when the cages 4a and 4b are accommodated in the shelf body 2, the cages 4a and 4b can be positioned in the front-rear direction, and the cages 4a and 4b can be prevented from jumping out to the front side of the shelf body 2. When the cage 4 is accommodated, the collar portion 8 a is slid along the pair of left and right guide rails 6 from the front side of the shelf body 2 and inserted into the back until the collar portion 8 b is placed on the receiving plate 9. Then, the front surface of the front collar is brought into contact with the stopper piece 17. By positioning the cage 4 with the stopper piece 17 in this way, the substantially sealed upper space 10 can be obtained reliably.

  At this time, the front side of the receiving plate 6c of the guide rail 6 is formed by bending the corner portion 20 protruding toward the upper space 10 while bending downward. Thus, by bending the corner portion 20 while curving, the cage 4 can be easily inserted into the guide rail 6. In particular, since the lower step of the rack 1 is difficult to be seen by the operator, the opening for inserting the cage 4 is widened, so that workability is improved. Moreover, it can contribute to safety by rounding the corner 20. That is, the chamfering process may be performed so that the corner portion 20 is curved.

  Further, the interval between the shelf boards 3 is such that the longest height cage (the cage 4b for rats in this embodiment) having the longest length among the plurality of types of cages 4a and 4b is attached to the rail unit 5. At this time, it is set so that the bottom surface of the longest height cage 4b and the shelf board 3 are in contact with each other. Thereby, since the space | interval of shelf boards 3 can be narrowed, ensuring the minimum accommodation height of the cage 4b which should be accommodated, the number of the shelf boards 3 can be increased and the number of cages 4 which can be accommodated as a result. Can be increased.

  As described above, even if the rail unit 5 is movable, the advantage of the negative pressure unidirectional animal breeding rack 1 is not impaired. That is, by sucking air from the front opening of the upper space 10 to the exhaust chamber 11 and the exhaust duct 12 through the exhaust flow path 13, a one-way air flow due to negative pressure is generated in the upper space 10 and the cage 4. Can be formed. For this reason, it is possible to prevent the contaminants generated from the domestic animals in the cage 4 from flowing out to the front side of the shelf body 2. Further, the contaminant can be collected by a filter 18 disposed between the exhaust chamber 11 and the exhaust duct 12. In addition, the cage 4 is sufficiently ventilated by the heat generated by the animals, and a comfortable environment can be maintained for domestic animals. By adopting the negative pressure one-way system in this way, it is not necessary to provide a door on the front surface of the rack 1, the cage can be easily taken in and out, workability is improved and cleaning is facilitated, and workability at the time of cleaning is also improved. To do. Furthermore, the rack 1 itself can be reduced in size. Since the animal breeding rack 1 is provided with casters 18, the rack 1 itself can be moved. For this reason, it can respond to the layout change of a room suitably. In addition to the casters 18, a fixing jig 19 serving as a leg portion is also provided at the bottom of the rack 1. The fixing jig 19 has an adjuster mechanism that can extend in the vertical direction. When the position of the rack 1 is fixed, the fixing jig 19 may be made longer than the caster 18 in the downward direction.

1: animal rearing rack, 2: shelf body, 2a: top plate, 2b: bottom plate, 2c: left and right side plates, 2d: rear plate, 3: shelf plate, 4: cage, 5: rail unit, 6: guide rail, 6a: upper plate, 6b: drooping plate, 6c: receiving plate, 7: fixing jig, 7a: fixing plate, 7b: locking piece, 8: collar part, 8a: left and right collar parts, 8b: rear collar Part, 9: backing plate, 9a: contact piece, 10: upper space, 11: exhaust chamber, 12: exhaust duct, 13: exhaust passage, 14: fitting hole, 15: protruding piece, 16: screw, 17: Stopper piece, 18: caster, 19: fixing jig, 20: corner portion, 21: cage flange reinforcement member

Claims (5)

A shelf main body that accommodates a plurality of shelf boards arranged in parallel in the vertical direction with a space therebetween,
A rail unit that is attached to the lower side of the shelf and is in close contact with the entire length of the upper left and right edges of the cage that houses the breeding animals;
A receiving plate provided on the rear side in the shelf body and substantially in close contact with the entire length of the rear upper edge of the cage;
The cage consists of a plurality of types having a specified width length that is a length in the width direction according to the size of the domestic animal,
The animal breeding rack according to claim 1, wherein the rail unit is movably attached to the shelf plate in the left-right direction according to the designated width length. An upper space formed above the cage by the rail unit and the receiving plate, and the front side of the shelf body is opened;
An exhaust chamber disposed on the rear side of the shelf body;
The animal breeding rack according to claim 1, further comprising an exhaust flow path that passes through a rear plate of the shelf main body and communicates the exhaust chamber with the upper space. The rail unit has a guide rail for sliding the left and right upper edges of the cage into the shelf body and fixing the guide rail to the shelf board,
The guide rail has a hanging plate that hangs downward from the shelf plate, and a flange that protrudes toward the upper space continuously from the hanging plate and protrudes in the left and right directions from the left and right upper edges of the cage. A receiving plate and a protruding piece that protrudes from the rear side of the drooping plate and fits into a fitting hole formed in the rear plate of the shelf body,
The fixing jig includes a fixing plate that is fixed to the front surface of the shelf plate, and a locking piece that protrudes into the shelf continuously with the fixing plate and locks the hanging plate to the shelf plate. Have
The animal breeding rack according to claim 2, wherein a plurality of the fitting holes are formed in the left-right direction with respect to the rear plate. The cage has a specified depth length that is a length in the depth direction according to the size of the domestic animal,
4. The animal breeding according to claim 1, wherein the rail unit includes a stopper piece that positions the cage in the front-rear direction with respect to the inside of the shelf body according to the designated depth length. rack.   The interval between the shelf plates is such that when the longest height cage having the longest length among the plurality of types of cages is attached to the rail unit, the bottom surface of the longest height cage and the shelf plate are The animal breeding rack according to any one of claims 1 to 4, wherein the animal breeding rack is set so as to be in contact with each other.

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