JP2015146790A - Lid for breeding cage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plastic lid for a breeding cage, the lid that has both of air permeability and strength.SOLUTION: A lid for a breeding cage of the present invention is a plastic disposable lid with an opened upper surface for breeding a small animal and fitted in the top edge of the breeding cage. The lid comprises: a flat part; an outer frame part positioned in an outer circumference of the flat part, including protrusions on the top from the flat part and grooves below, and fitted in the top edge of the breeding cage; a reinforcing part positioned inside the outer frame part, rising in a convex on the top from the flat part, and including a space below; and a ventilation part continuously arranged in the reinforcing part, rising from the outer frame part, and forming a gap between the upper part edge of the breeding cage and itself. An air passage is formed for bringing the space of the reinforcing part into communication with the gap of the ventilation part, and connecting between the breeding cage and the outside.

Description

  The present invention relates to a cap for a rearing cage for transporting and rearing small animals such as research mice.

  Patent Document 1 is disclosed as an animal breeding cage. As shown in FIG. 1 of Patent Document 1, a conventional rear cage lid is generally made of a wire mesh 11 with a linear metal rod in order to prevent damage caused by the movement of a small animal and ensure ventilation. there were. Therefore, every time the lid of the breeding cage is used, it has to be cleaned and sterilized, and the work is complicated. The lid 3 of the breeding box 1 of the reference diagram showing the use state of Patent Document 2 is also helpful.

  On the other hand, a lid for a disposable cage made of plastic is not known because of the problem of ensuring air permeability and strength. Simply placing a plastic lid over the cage opening will result in a lack of oxygen necessary for the respiration of small animals, making long-term transport and breeding impossible. In addition, if the plastic lid is simply provided with a vent hole, it will be damaged by the impact, biting operation, etc. of the small animal moving around in the cage, and the small animal will escape from the cage.

  Small animals for research are typically rodents, have sharp teeth, and chew everywhere. That is, it seems that a simple plastic lid has not been developed because it is difficult to ensure air permeability and maintain strength.

JP 2003-18932 A Design registration No. 1408863

  Then, an object of this invention is to provide the lid | cover for breeding cages made of plastics which has air permeability and intensity | strength.

In order to solve the above problems, the present invention
(1)
A disposable lid made of plastic that is fitted to the upper edge of the cage for raising small animals and the upper surface is open,
A flat part, an outer frame part located on the outer periphery of the flat, projecting above the flat and having a groove below and fitted on an upper edge of the breeding cage; and the flat part located inside the outer frame part A ventilation part that protrudes upward from the top and has a space below, and a ventilation part that is connected to the reinforcement part and rises from the outer frame part to form a gap between the upper edge of the breeding cage The cap of the rearing cage is characterized in that the space of the reinforcing portion and the gap of the vent portion communicate with each other to form an air passage that connects the inside and outside of the rearing cage.
(2)
The structure of the lid of the cage for raising according to (1) is characterized in that the reinforcing part is in a lattice shape and the ventilation part is located on four sides of the outer periphery.
(3)
(1) It is provided with left and right pieces which are provided at least on two opposite sides of the outer frame part so as to be rotatable at the ends, and are folded back and locked to the bottom part of the upper edge of the breeding cage. Or it was set as the structure of the lid | cover of the breeding cage as described in (2).
(4)
Any one of (1) to (3), wherein a hole for locking a water supply bottle for storing water to be consumed by a small animal is formed in the flat portion, and the periphery thereof is raised from the blade portion. It was set as the structure of the lid | cover of the cage for breeding as described in a crab.
(5)
The flat cage is provided with a linear ventilation hole, and the lid of the breeding cage according to any one of (1) to (4) is provided.
(6)
The structure of the cap of the breeding cage according to (5), wherein a filter is attached to the vent hole.
(7)
The second cage is provided on the ventilation path in the ventilation portion, and the lid of the breeding cage according to any one of (1) to (6) is provided.
(8)
A breeding cage having an open upper surface for breeding small animals and a lid of the breeding cage according to any one of (1) to (7) fitted to an upper edge of the breeding cage. It was set as the structure of the breeding device.

  Since this invention is the said structure, it can be used disposablely and does not require washing | cleaning and disinfection work for every repeated use of a lid | cover. Moreover, since it is disposable, it is hygienic and can reduce the risk of suffering from pathogenic bacteria in both small animals and humans.

  By providing the reinforcing portion 7 on the plastic breeding cage lid 1, the plastic breeding cage lid 1 is sufficient for impact during transportation, collision of small animals 10, and damage behavior. Expresses strength and enables transport and breeding of small animals.

  Further, the space 7g at the bottom of the reinforcing part 7 and the gap 2b between the bottom of the ventilation part 8 and the upper edge 2a of the breeding cage 2 form an aeration path, so that the amount of oxygen inside the breeding cage 2 is sufficient. Can be secured. Furthermore, the amount of oxygen inside the breeding cage 2 can be more stably secured by providing the reinforcing portions 7 in a lattice shape and providing a plurality of ventilation portions 8 in the outer frame portion 6.

It is a perspective view of 1st embodiment of the lid | cover of the breeding cage which is this invention. It is a front view of 1st embodiment of the lid | cover of the breeding cage which is this invention. It is a side view of 1st embodiment of the lid | cover of the breeding cage which is this invention. It is a top view of 1st embodiment of the lid | cover of the breeding cage which is this invention. It is a bottom view of 1st embodiment of the lid | cover of the breeding cage which is this invention. It is AA 'sectional drawing of 1st embodiment of the lid | cover of the breeding cage which is this invention. It is BB 'sectional drawing of 1st embodiment of the lid | cover of the breeding cage which is this invention. It is a use partial sectional view of a first embodiment of a lid of a breeding cage which is the present invention. It is a use sectional view (lid A-A 'position) of a first embodiment of the lid of the breeding cage which is the present invention. FIG. 10 is an enlarged view of a circle C in FIG. 9. It is a top view of 2nd embodiment of the lid | cover of the breeding cage which is this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to the following Example.

  As shown in FIGS. 1 to 10, the cap 1 of the cage for rearing according to the present invention includes a flat portion 5, an outer frame portion 6, a reinforcing portion 7, and a ventilation portion 8, and rears a small animal 10. A disposable lid made of plastic that is fitted to the upper edge 2a of the rearing cage 2 having an open upper surface. As shown in FIGS. 8 and 9, a breeding device 4 is configured by the breeding cage 2 and the breeding cage lid 1.

  As shown in FIG. 5 and the like, the breeding cage 2 is not particularly limited in shape and material as long as the upper part is open and a space for accommodating the small animals 10 is provided therein. In the case of disposable, a plastic cage is desirable at a low cost. Examples of the plastic breeding cage 2 include the breeding container 2 of Patent Document 2.

  A hole 7c is formed in the flat portion 5 as necessary. The water supply bottle 3 is fitted into the hole 7c. The side surface 7e of the hole 7c is provided with a recess 7f, is narrow in the direction of the lower end, has a diameter slightly smaller than the diameter of the upper portion of the main body 3a, and even if the water supply bottle 3 is fitted and the breeding device 4 falls, 3 does not fall off.

  The periphery of the hole 7c is an annular reinforcing portion 7d raised from the flat portion 5. If it is such a hole 7c, the intensity | strength of the flat part 5 can also be maintained, ensuring the supplementary water for small animals.

  The water supply bottle 3 includes a main body 3a, a water supply port 3b, and a cap 3d, and stores water 11 that the small animal 10 drinks.

  The main body 3a is fitted into the hole 7c. On the side surface 7e of the hole 7c, a vertical strip 3c projects from the side surface of the water supply bottle 3 to be fitted, and the main body 3a is prevented from rotating by being inserted into the recess 7f of the hole 7c.

  The water supply port 3b is provided at the bottom of the main body 3a and has a structure in which the water 11 inside the main body 3a flows down when the small animal 10 grabs, bites or pushes it with the mouth. For example, a rod is slidably fitted into a hole communicating with the inside of the main body 3a, and the animal 11 comes into contact with the rod, and the rod swings, whereby the water 11 flows down from the water supply port 3b. The cap 3d is fitted on the upper portion of the main body 3a. The small animal 10 can drink water from the water supply port 3b.

  The flat portion 5 is provided with a plurality of linear air holes 5a as necessary. By providing the vent holes 5a, the air permeability can be improved, and more air can be secured when there are many small animals 10.

  The outer frame portion 6 is located on the outermost periphery of the flat portion 5, is convex above the flat portion 5 and includes a groove 6 c below, and the upper edge 2 a of the breeding cage 2 is fitted into the groove 6 c. On the outer side surface of the outer frame portion 6, a plurality of concave portions 6 a that are recessed inward are provided. As shown in FIG. 10, the recess 6a is located under the cage 2c of the breeding cage 2 when the breeding cage lid 1 is put on the breeding cage 2, and the breeding cage lid 1 is placed in the breeding cage. Lock to 2. A flange 6b protrudes substantially horizontally at the end of the outer frame portion 6 to give strength to the outer frame portion 6 and to serve as a handle when the lid 1 of the breeding cage is attached or detached.

  Further, left and right pieces 1a and 1b are provided on the left and right sides of the outer frame portion 6 so as to be opposed to each other and turnable at the end portions. As shown in FIG. 10, the left and right pieces 1a and 1b are formed at the bottom of the upper edge 2a of the breeding cage 2 from the position of the left piece 1a indicated by the dotted line after the breeding cage lid 1 is fitted into the breeding cage 2. Folded back and locked.

  By doing so, the lid 1 of the breeding cage is more firmly fitted into the breeding cage 2, and the lid 1 of the breeding cage is prevented from falling off from the breeding cage 2. It may be used when the cap 6 of the rearing cage is not sufficiently fitted into the rearing cage by simply locking the concave portion 6a with the cage 2c.

  Since the left piece 1a and the right piece 1b are provided, even if the small animal 10 moves around or the breeding device 4 falls, the breeding cage lid 1 does not easily fall off the breeding cage 2, and the small animal 10 Will not run away. Since the test small animal 10 has a disease, a bacterium, and a virus and is dangerous, a treatment for preventing escape is extremely important.

  The reinforcing part 7 is located inside the outer frame part 6 and protrudes upward from the flat part 5 and has a space 7g below. Here, it is a lattice shape composed of the vertical reinforcing portion 7 a and the horizontal reinforcing portion 7 b, and the ventilation portion 8 is positioned in four directions of the outer frame portion 6. Specifically, as shown in FIG. 1, two vertical reinforcing portions 7a and two horizontal reinforcing portions 7b are formed so as to be orthogonal to the vertical reinforcing portions 7a.

  The ventilation part 8 is connected to the reinforcement part 7 and protrudes from the outer frame part 6 to form a gap 2b between the rear part 2 and the upper edge 2a of the breeding cage 2.

  Even if the lid 1 of the rearing cage thus constructed is fitted to the rearing cage 2, the space 7g of the reinforcing portion 7 and the gap 2b of the ventilation portion 8 communicate with each other, and the inside of the rearing cage 2 is connected to the outside. A ventilation path is formed.

  As shown in FIG. 11, the breeding cage lid 1 c according to the second embodiment of the present invention includes the breeding cage lid 1 of Example 1 and a filter 9.

    The filter 9 is a membrane that does not allow dust and microorganisms to pass through, and is attached so as to cover the plurality of linear air holes 5 a formed in the flat portion 5. In sticking, an adhesive, a double-sided tape, etc. can be illustrated.

  Here, three vent holes 5 a are formed in two flat portions 5, but each flat portion 5 includes one filter 9. By providing the filter 9, it is possible to prevent the dust and microorganisms from dropping into the breeding cage 2 and to reduce the contamination caused by them in the breeding cage 2.

  In addition, contamination inside the breeding cage 2 can be further reduced by providing a second filter that filters dust and microorganisms on the ventilation path in the ventilation section 8 so as not to be separated.

DESCRIPTION OF SYMBOLS 1 Rearing cage lid 1a Left piece 1b Right piece 1c Rearing cage lid 2 Rearing cage 2a Edge 2b Clearance 2c 鍔 3 Water supply bottle 3a Main body 3b Water supply port 3c Vertical strip 3d Cap 4 Breeding device 5 Flat part 5a Vent 6 outer frame 6a recess 6b collar 6c groove 7 reinforcement 7a longitudinal reinforcement 7b lateral reinforcement 7c hole 7d annular reinforcement 7e side 7f recess 7g space 8 vent 9 filter 10 small animal 11 water

Claims (8)

A disposable lid made of plastic that is fitted to the upper edge of the cage for raising small animals and the upper surface is open,
A flat part, an outer frame part located on the outer periphery of the flat, projecting above the flat and having a groove below and fitted on an upper edge of the breeding cage; and the flat part located inside the outer frame part A ventilation part that protrudes upward from the top and has a space below, and a ventilation part that is connected to the reinforcement part and rises from the outer frame part to form a gap between the upper edge of the breeding cage And consist of
The cap of the breeding cage, wherein the space of the reinforcing portion and the gap of the vent portion communicate with each other to form an air passage that connects the inside and outside of the cage for breeding. 2. The cap of the breeding cage according to claim 1, wherein the reinforcing portion is in a lattice shape, and the ventilation portion is located on four sides of the outer periphery. The left and right pieces, which are provided at least at two opposite sides of the outer frame portion so as to be pivotable at the ends, and are folded back and locked to the bottom portion of the upper edge of the breeding cage, are provided. Or the lid | cover of the cage for breeding of Claim 2. 4. The flat portion is formed with a hole for locking a water supply bottle for storing water to be consumed by a small animal, and the periphery thereof is raised from the blade portion. The lid of the cage for breeding according to claim 1. The lid of the cage for breeding according to any one of claims 1 to 4, wherein a linear ventilation hole is formed in the flat portion. 6. The breeding cage lid according to claim 5, wherein a filter is attached to the vent hole. The cap of the breeding cage according to any one of claims 1 to 6, wherein a second filter is provided on the ventilation path in the ventilation section. A breeding cage having an upper surface for breeding small animals and a lid for the breeding cage according to any one of claims 1 to 7, which is fitted to an upper edge of the breeding cage. Breeding equipment.