JPH0331194Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to a mousetrap for trapping mice.

BACKGROUND OF THE INVENTION Generally, mechanical mouse traps are provided with a shutter that can be opened and closed at the entry point for mice. This shutter must automatically close when a mouse enters. Conventionally, a structure has been proposed in which an electromagnetic plunger or the like is used as a drive means for this shutter to continuously control opening and closing of the shutter. However, driving means such as electromagnetic plungers are not only structurally complex, but also require a power source, and may become unusable in the event of a power outage, posing problems in terms of operational reliability.

Purpose of the invention Therefore, the purpose of the invention was made in view of the above-mentioned problems.
To provide a mouse trap having a simple structure and capable of surely performing the opening/closing operation of a shutter by utilizing the movement of the center of gravity due to the intrusion movement of a mouse.

Summary of the invention Therefore, the present invention is such that a shutter is rotatably attached to the entrance side end of a cylindrical member bent at an obtuse angle at approximately the center position on the bottom side, and the entrance is connected to the shutter. a first support member that maintains an open state; a member to be sucked and fixed by suction to a locking member fixed to a cylindrical member when the entry port is closed; The configuration includes a second support member that maintains the state.

When a screw enters the interior of the cylindrical member through the entry port and the center of gravity of the cylindrical member changes, the cylindrical member is displaced from one stable state to the other stable state. At this time,
The shutter closes automatically under its own weight. Furthermore, after a mouse has entered, the entry port can be maintained in an upwardly floating state, making it difficult for the mouse to exit through the entry port.

Configuration of the Embodiment Hereinafter, details of the present invention will be explained using the embodiment shown in the drawings.

1 to 3 show a mousetrap 1 according to the present invention. This mousetrap 1 includes a cylindrical member 2 that is open at both ends and has a rectangular cross-sectional shape. This cylindrical member 2
The second position is approximately at the center of the bottom surface in the longitudinal direction.
As shown in detail in FIGS. 3 and 3, the bottom surface 4a of either the right side portion 4 or the left side portion 5 is bent at an obtuse angle. Alternatively, the bottom surface 5a can come into contact with the floor surface 6. That is,
In the cylindrical member 2, the right side portion 4 or the left side portion 5 moves up and down using the bent portion 3 as a fulcrum. They are starting to move in what is called a seesaw movement. Now, the second
The figure shows the bottom surface 4a of the right part 4 in contact with the floor surface 6, while FIG. 3 shows the state in which the bottom surface 5a of the left part 5 is in contact with the floor surface 6. Further, a lid 8 is fitted into the opening 7 at the left end of the cylindrical member 2, and is kept closed at all times.
As shown in FIGS. 2 and 3, on the bottom side of the lid 8, there is a support rod 10 for supporting the bait 9.
is provided.

On the other hand, the opening at the right end of the cylindrical member 2 is
It constitutes an entry port 11 for mice, and a shutter 12 made of a plate-shaped member is rotatably attached to the end of the cylindrical member 2 on the entry port side. That is, this shutter 12 is rotatably attached to the upper end of the cylindrical member 2 on the entry port 11 side via a horizontal pin 13, and has an opening/closing portion 14 for opening and closing the entry port 11. and a first one that maintains the entry port 11 in an open state (see FIG. 2).
and a second support member 16 that maintains the entry port 11 in a raised state from the floor surface 6 when the entry port 11 is closed (see FIG. 3). 2 shows the state before the mouse enters the cylindrical member 2, and FIG. 3 shows the state after the mouse enters the cylindrical member 2. In the state after this mouse has entered, the cylindrical member 2
, the bottom surface 5a of the left portion 5 is in contact with the floor surface 6, and this state is confirmed by the second part of the shutter 12.
This is maintained by the lower end of the support member 16 contacting the floor surface 6. Therefore, as shown in FIG. 3, the bottom surface 4a of the cylindrical member 2 from the bent portion 3 to the entrance 11 becomes an upward slope toward the entrance 11, so that the inside of the cylindrical member 2 is It becomes difficult for rats to climb up this bottom surface 4a, and therefore it becomes difficult for rats to escape from the entrance 11.

Also, the bottom surface 4 of the right side portion 4 of the cylindrical member 2
A magnet 17 is fixed to a as a locking member, and a magnet 17 is fixed to the first support member 15 of the shutter 12 by adsorption and fixation to the magnet 17 when the shutter 12 is closed, as shown in FIG. An iron plate 18 is attached as a locking member.

Operation of the Embodiment The operation of the mousetrap 1 configured as described above will now be described. First, this mousetrap 1
When setting the shutter 12, as shown in FIG. Set it so that it makes contact with the In this state, the entry port 11 of the cylindrical member 2 is in an open state, and a mouse can enter into the cylindrical member 2 through the entry port 11. At this time, the bait 9 is attached to the support rod 10 inside the cylindrical member 2 in advance. The odor of the bait 9 does not leak from the opening 7, but exits only from the entrance 11 to attract rats.

Next, the mouse enters the cylindrical member 2 through the entry port 11.
Suppose that they invaded inside. In this case, the cylindrical member 2 does not move while the mouse passes through the bottom surface 4a of the right side portion 4, but when the mouse moves onto the bottom surface 5a of the left side portion 5 using the bent portion 3 as a starting point, the center of gravity As a result of this movement, the cylindrical member 2 rotates counterclockwise from the bent portion 3, and as shown in FIG. It will come into contact with surface 6. At this time, the first support member 15 rises and separates from the floor surface 6, so
The shutter 12 rotates clockwise around the pin 13 due to its own weight, and when the iron plate 18 fixed to the first support member 15 is attracted and fixed to the magnet 17 fixed to the cylindrical member 2 side. At the same time, the lower end of the second support member 16 of the shutter 12 comes into contact with the floor surface 6. As a result, the entry port 11 of the cylindrical member 2 is closed by the shutter 12. In this way, the mouse can
After the shutter 12 once moves to the left side portion 5 and closes the entrance 11, the cylindrical member 2 is maintained in that position by the second support member 16. Therefore, even if the mouse inside the cylindrical member 2 moves again toward the bottom surface 4a of the right portion 4, the cylindrical member 2 will not rotate again and will maintain its same posture. be done. Therefore, the bottom surface 4a of the right side portion 4 of the cylindrical member 2 always maintains an upward slope to the right, making it difficult for rats to slide up this portion and make it difficult for mice to escape from the entry port 11 to the outside. Also, shutter 12
is firmly fixed to the cylindrical member 2 through the adhesion relationship between the magnet 17 and the iron plate 18, so even if a mouse climbs up the inclined bottom surface 4a and collides with the shutter 12, it will not open easily. Never.

Other Embodiments Note that in the embodiments described above, the cylindrical member 2
A magnet 17 is provided on the side, and the first
Although the iron plate 18 is provided on the side of the support member 15, the configuration may be reversed. Furthermore, the two locking members may engage each other with claws or the like. Furthermore, the cylindrical member 2 does not have to be square cylindrical, and may have various shapes such as a circular shape and a polygonal shape.

Effects of the Invention As explained above, according to the mousetrap according to the present invention, the shutter is rotatably attached to the cylindrical member that is bent at a predetermined angle and equipped with a locking (adsorption) member. A first support member that maintains an open state of the entry port of the cylindrical member in the shutter, a locking (adsorbed) member fixed to the first support member, and a ,
The structure includes a second support member that allows the entry port to rise above the floor surface and maintain an upward state.
Therefore, compared to the conventional structure in which the shutter is opened and closed using an electromagnetic plunger, the structure of the present invention is extremely simple, and since no power source is required for the opening and closing operation of the shutter, there is no need to worry about power outages. Regardless of whether the shutter is opened or closed, the opening and closing operations of the shutter can be performed reliably. In addition, once a mouse has entered the cylindrical member, the second support member supports the entrance side of the cylindrical member, thereby preventing the cylindrical member from being attacked by a mouse inside. Since the member is set in such a state that it cannot see-saw, and the entry port is maintained in a raised state, there is also the advantage that it is difficult for rats to escape from the entry port to the outside. moreover,
Since no special driving means is required near the entrance, malfunctions caused by interference from rats can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the mousetrap according to the present invention, Fig. 2 is a cutaway front view of the main parts of the mousetrap showing the shutter in an open state, and Fig. 3 is a plan view of the mousetrap according to the present invention. It is an operation explanatory diagram. 1... Mousetrap, 2... Cylindrical member, 6...
Bottom surface, 11...Entry port, 12...Shutter, 1
3... Pin, 15... First support member, 16...
Second support member, 17... magnet, 18... iron plate.

Claims (1)

[Claims for Utility Model Registration] A cylindrical member 2 that is bent into an obtuse angle at approximately the center of the bottom surface and has a mouse entry port 11 at one end, and the entry port 11 of this cylindrical member 2.
a shutter 12 rotatably attached to the upper end of the side by a horizontal pin 13 and formed to be able to open and close the inlet 11; and the cylindrical member 2.
A locking member 1 fixed near the end of the entry port 11 of the
7, the shutter 12 includes a first support member 15 for maintaining the entry port 11 in an open state by the shutter 12; a locking member 18 that engages with the locking member 17 when closed by the locking member 12; and a second support member 1 that maintains the entry port 11 in a raised state from the floor surface when the entry port 11 is closed.
A mousetrap 1 characterized in that it is provided with 6.