JPH0432068Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to an improvement of a rat catcher.

(Prior art) Conventional rat traps have a lid that opens and closes an entrance provided on the side of the net cage, which is wrapped around the bones of the net cage and is rotatably attached to the top of the bait hook. It is held in an open state by a hook, and when a mouse eats the food attached to the bait rack, the bait rack swings, the upper hook comes off, and the lid automatically closes.

(Problem to be solved by the invention) The conventional rat trap described above has an integrated structure in which the bait hook that moves the lid to close and the hook part that engages and holds the lid in the open state are made of a single wire. Moreover, the ratio of the dimension from the center of rotation wrapped once around the bones of the net cage to the upper hook and the dimension from the center of rotation to the position where the bait is attached below is approximately 1:2.
3, the swing (amplitude) of the hook portion is inversely proportional to the size ratio with respect to the swing (amplitude) of the portion to which the bait is attached. Therefore, there is a problem that the latch between the opening frame attached to the lid and the hook part cannot be released by small swings of the bait hook, and even if you try to lure them into the net cage, they will eat only the bait and run away. If you do this, something bad will happen.

This situation is even more pronounced with small mice (small mice), which have a weak force for swinging the bait rack, and have the problem that they are almost impossible to capture.

The present invention was developed in view of the problems of the conventional technology, and its purpose is to ensure that the lid closes even if the force acting on the bait hook is small, thereby preventing rats from catching. To provide a rat trap that can reliably catch rats.

(Means for Solving the Problems) In order to achieve the above object, the rat catcher of the present invention has a support rod installed in the net cage, and a vertical rod and an inclined rod formed in a substantially dogleg shape on the support rod. The bent part of the formed swinging rod is rotatably attached, and the vertical rod penetrates the mesh basket and projects upward, and the hook part at the tip is engaged with the opening frame attached to the lid body. A bait hook equipped with a weight is slidably attached to the slanted rod.

The swinging rod may be formed as a single piece by bending a thick wire, or may be formed by welding rod material to each ring constituting the rotating portion.

Further, in order to easily temporarily attach the bait hook to the inclined rod part, it is preferable that the upper circumferential surface of the inclined rod part has an uneven surface.

Furthermore, the mesh of the mesh cage is so fine that a small mouse cannot fit through it.

(Function) According to the above means, a weighted bait hook is attached to the upper part of the inclined rod portion of the swinging rod, and the bait hook is swung so that the mouse can eat the food attached to the bait hook. When it moves, the swinging movement causes the weight to move, and the vibration of the weight causes the bait hanger to disengage from the slanted rod, causing the slanted rod to slide downward.

Accompanying this, the swinging rod swings about the center of rotation with the support rod, the latch hook part comes off the opening frame, and the lid body is closed by the elastic force of the spring.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on the drawings. 1 is a bottom plate, 2 is a mesh basket fixedly fixed to the upper surface of the bottom plate 1, and an entrance part 3 is provided on the circumferential side of the mesh basket 2. At the same time, a circular through hole 4 is formed in the center of the upper surface, and a funnel-shaped cylinder 5 made of wire is fixed by fitting the tapered side into the mesh basket 1. has been done. Although the cylindrical body 5 can enter from the large diameter side, it cannot come out from the tapered side toward the large diameter side, and the large diameter side opening of the cylindrical body 5 can be opened as needed. It may also be closed with a flat plate 6. A lid 8 is attached to the entrance 3 of the mesh basket 2 via a gate-shaped guide frame 7 so as to be able to slide up and down, and a hinge mechanism 9 is attached to the upper end of the lid 8.
The actuating plate 10 is attached to the upper surface of the mesh basket 2 via the horizontal rods 11 so that the actuating plate 10 can rotate freely.

A spring 12 for biasing the lid 8 in the closing direction is wound around the horizontal rod 11 via the actuating plate 10, and the acting portion 12a of the spring 12 is pressed against the actuating plate 10.

Further, an opening frame 13 is attached to the operating plate 10, and the opening frame 13 pulls the lid body 8 upward along the guide frame 7 to open it.
The lid body 8 is maintained in the open state by being engaged with the hook part 16 of the swinging rod 14.

Since the opening frame 13 crosses the through hole 4 of the mesh basket 2, it is formed in a circular shape surrounding the through hole 4 so as not to prevent entry into the through hole 4.

The swinging rod 14 includes a ring 14a and the ring 14.
Vertical rod 14b and inclined rod 14 fixed to the outer peripheral surface of a
The ring 14a is fitted onto a support rod 15 installed across the front and rear peripheral walls of the mesh basket 2, and is rotatably supported.

The vertical rod 14b fixed to the ring 14a is the mesh basket 2
The protruding end thereof is bent into a substantially L-shape, and a hook portion 16 is integrally formed therein, and the inclined rod 14c is fixed in a downwardly inclined shape forming an obtuse angle with the vertical rod 14b. At the same time, the lower end of the inclined rod 14c is bent upward and the inclined rod 14c is bent upward.
The bait hook 17 attached to the hook 4c is prevented from sliding and detaching. Also, inclined rod 1
The upper peripheral surface of 4c has an uneven rough surface 18 for bait hooking 1
7 can be temporarily locked and set.

The bait hook 17 consists of a bait hooking rod 17a bent into a substantially V-shape, a weight 17b connected and fixed to the upper end of the bait hooking rod 17a, and a through ring 17c connected to the top surface of the weight 17b. It is fitted into the inclined rod 14c and is slidable along the inclined rod 14c.

In order to ensure the swinging stroke of the swinging rod 14, the support rod 15 is installed diagonally across the front and rear peripheral walls of the mesh basket 2. With the above configuration, the bait 19 that rats like is attached to the bait hooking rod 17a of the bait hook 17, and the through rod 17c of the bait hook 17 is engaged with the uneven rough surface 18 of the inclined rod 14c of the swinging rod 14.
In addition, the hook part 16 of the swinging rod 14 engages with the hook part 13a of the opening frame 13, which has been moved downward in order to lift the lid 8 upward and open it, thereby maintaining the open state and completing the setting. .

When a mouse enters the net cage 2 through the entrance 3 or the through hole 4 and is attracted by the food, it eats the food 19 and is vibrated, the bait hook 17 is moved to the uneven surface 18 by the action of the weight 17b. It disengages from the other parts and slides downward on the inclined rod 14c. Accordingly, the swinging rod 14 rotates around the ring 14a, and the hook portion 16 at the tip of the vertical rod 14b, which is hooked to the hook hooking portion 13a of the opening rod 13, comes off, and the lid body 8
is pushed down by the elastic force of the spring 12 to close the entrance portion 3, and the mouse is captured.

(Effects of the invention) Since the rat trap of the present invention has the above-mentioned structure, when the bait hook with the bait attached is moved with a small force, the weight provided on the bait hook works and swings. This will cause the rod to swing a lot. As a result, the lid, which is kept open, automatically closes and the mouse can be reliably captured.

Therefore, it is possible to provide a mouse trap that can reliably capture even small mice (child mice) that could not be captured with the conventional structure.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a partially cutaway side view with the lid set in the open state, Fig. 2 is a partially cutaway plan view, and Fig. 3 shows the bait hook sliding on the inclined rod. , is a partially cutaway side view showing a state in which the swinging rod has come off from the opening frame and the lid has moved to close. In the figure, 1...bottom plate, 2...mesh basket, 3...entrance, 8...lid, 13...opening rod, 14...swinging rod, 15...support rod, 16...hanging stop hook part,
17... Bait hook, 17b... Weight.

Claims (1)

[Scope of utility model registration request] A net cage is fixedly fixed to the upper surface of the bottom plate, and the entrance part opened in a part of the net cage is opened and closed by a lid that slides in the vertical direction. In a rat trap that automatically closes in conjunction with movement, a support rod is installed on the net cage, a swinging rod is rotatably attached to the support rod, and one end of the swinging rod is placed above the net cage. A latch hook part that protrudes and is attached to an opening frame attached to the lid body, and the other end is an inclined rod that slopes diagonally downward from the center of rotation,
An uneven rough surface is formed on the upper circumferential surface of the inclined rod to temporarily engage and hold the bait hook, and the bait hook is connected to the bait hook rod and a weight connected and fixed to its upper end, and to the upper surface of the weight. A rat trap characterized by comprising a through ring and a through ring fitted into an inclined rod.