Box trap

Abstract

This invention provides a box trap that can increase the efficiency of capturing large targets such as bears. [Solution] A shutter guide 2 is provided at the opening of the capture cage 1. The shutter 3 is provided so that it can slide along the shutter guide 2 between an upper position that opens the opening and a lower position that closes the opening, and can fall from the upper position to the lower position by its own weight. The trigger rod 4 is selectively positioned between an engaged position in which it engages with a locking part of the shutter 3 and supports and holds the shutter 3 in the upper position, and a released position in which it disengages from the locking part. The lever 5 is provided so as to be swingable in the capture cage 1 so as to be selectively positioned between a standby position in which the trigger rod 4 is positioned in the engaged position and an operating position in which the trigger rod 4 is positioned in the released position when the operating part is pulled from inside the capture cage 1.

Description

Technical Field

[0001] The present invention relates to a box trap capable of capturing a target to be captured such as a harmful animal.

Background Art

[0002] As a conventional box trap, there is disclosed one that includes a rectangular parallelepiped box cage part, a shutter part having a self-weight falling type door body for closing the entrance of the box cage part, and a trigger mechanism for dropping the door body of the shutter part (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the box trap described in Patent Document 1, it often happens that small animals other than the target large capture targets such as bears are unintentionally captured. In that case, since it is necessary to reset the device again, there is a problem that the capture efficiency is poor.

[0005] The present invention has been made paying attention to such problems, and an object thereof is to provide a box trap capable of improving the capture efficiency of a large capture target such as a target bear.

Means for Solving the Problems

[0006] To achieve the above objective, the box trap according to the present invention comprises a capture cage, a shutter guide, a shutter, a trigger rod, and a lever, wherein the capture cage has an opening capable of accommodating a target for capture inside, the shutter guide is provided in the opening, the shutter is provided so as to slide along the shutter guide between an upper position that opens the opening and a lower position that closes the opening, and so as to fall from the upper position to the lower position by its own weight, and has a locking part for holding it in the upper position, the trigger rod is provided in the capture cage so as to be selectively positioned between an engagement position in which it engages with the locking part and supports the shutter and holds it in the upper position, and a release position in which it disengages from the locking part, and the lever has an operating part and is attached to the trigger rod, and is swingably provided in the capture cage so as to be selectively positioned between a standby position in which the trigger rod is positioned in the engagement position and an operating position in which the trigger rod is positioned in the release position when the operating part is pulled from inside the capture cage.

[0007] The box trap according to this invention is used by attaching bait, such as a string or wire, to the lever's operating part so that it hangs down inside the trap cage to lure the target animal. When the target animal is attracted by the bait and enters the trap cage through the opening, and pulls the bait, the lever's operating part is pulled, moving from the standby position to the operating position, and the trigger rod moves from the engaged position to the released position. The trigger rod disengages from the locking part in the released position, and the shutter falls from the upper position to the lower position by its own weight, closing the opening. This traps the target animal inside the trap cage and allows for capture. Since the trigger rod engages with the locking part in the engaged position and supports the shutter, it experiences frictional resistance when disengaging from the locking part in the released position. Therefore, small animals with little strength will have difficulty positioning the trigger rod in the released position, preventing the unintentional capture of small animals other than the intended large target animal such as a bear, and increasing the capture efficiency of large targets.

[0008] In the box trap according to the present invention, it is preferable to have a locking device provided on the capture cage or the shutter guide that restrains the upward movement of the shutter when the shutter is in the lower position. In this case, when the shutter falls to its lower position and closes the opening, the locking device restrains the shutter from moving upward, preventing the captured animal trapped in the cage from lifting the shutter and escaping through the opening.

[0009] In the box trap according to the present invention, it is preferable that the trapping cage, the shutter guide, and the shutter are provided in a manner that allows for disassembly and assembly. In this case, the trap cage, shutter guide, and shutter can be disassembled to facilitate transport. [Effects of the Invention]

[0010] This invention provides a box trap that can increase the efficiency of capturing large targets such as bears. [Brief explanation of the drawing]

[0011] [Figure 1] This is a side perspective view showing a box trap according to an embodiment of the present invention. [Figure 2] Figure 1 is a perspective view of the rear side of the box trap. [Figure 3] Figure 1 is a front perspective view of the box trap. [Figure 4] Figure 1 is a perspective view of the area around the lever when the shutter of the box trap shown is in the upper position. [Figure 5] Figure 1 is a perspective view of the area around the lever when the shutter of the box trap shown is in the lower position. [Figure 6] Figure 1 is a perspective view of the area near the locking mechanism when the shutter of the box trap shown is in the upper position. [Figure 7] Figure 1 is a perspective view of the area near the locking mechanism when the shutter of the box trap shown is in the lower position. [Figure 8]Figure 1 is a perspective view of the box trap disassembled into its capture cage, shutter guide, and shutter. [Modes for carrying out the invention]

[0012] The embodiments of this invention will be described below with reference to the drawings. Figures 1 to 8 show a box trap according to an embodiment of the present invention. The box trap comprises a capture cage 1, a shutter guide 2, a shutter 3, a trigger rod 4, a lever 5, and a locking device 6. The box trap in this embodiment is used to capture large vermin such as bears.

[0013] As shown in Figure 8, the capture cage 1 is constructed in a rectangular parallelepiped shape by overlapping and welding rod-shaped steel materials in a grid pattern, and has an opening 11 on the front that can accommodate the target to be captured inside. The capture cage 1 has a rectangular frame material 12 along the opening 11. The frame material 12 has plate-shaped projections 13 on the upper part that face the front and rear sides. The projections 13 have through holes 14 that penetrate in the front-to-back direction, and have a guide pipe 15 at the rear that communicates with the through holes 14 and extends to the rear. The capture cage 1 has an L-shaped steel beam 16 on the upper rear side that faces the front and bottom surfaces, with the corner facing the rear side. The L-shaped steel beam 16 has support plates 17 at the corner that are perpendicular to the back and bottom surfaces. The support plates 17 have mounting holes that penetrate through them.

[0014] The shutter guide 2 is a rectangular frame shape that is the same width as the frame material 12 but taller than the frame material 12. The shutter guide 2 is detachably fixed to the outer surfaces of both sides of the frame material 12 via mounting plates, facing the lower end and the front of both sides. The upper and lower side parts of the shutter guide 2 have a U-shaped cross-section and guide grooves on the opposing inner sides. The shutter guide 2 has a horizontal member 21 in the middle section, with both ends connected to the side parts. The horizontal member 21 has two L-shaped steel sections 22 that are erected near the upper center. Each L-shaped steel section 22 has opposing surfaces that are parallel to each other, with a gap between each opposing surface.

[0015] The shutter 3 is formed by overlapping and welding bar-shaped steel materials in a grid pattern inside a rectangular frame material. The shutter 3 is provided so as to be able to slide between an upper position where the opening 11 is opened and a lower position where the opening 11 is closed along the guide groove of the shutter guide 2 and to fall by its own weight from the upper position to the lower position. The shutter 3 has a locking portion at its lower end for holding it in the upper position.

[0016] The trigger bar 4 is made of bar-shaped steel material, penetrates through the guide tube 15 and the through hole 14, and is selectively positioned at an engagement position where it engages with the locking portion at the tip and supports the shutter 3 to hold it in the upper position and a release position where it disengages from the locking portion, and is provided on the capture cage 1. As shown in FIGS. 4 and 5, the lever 5 is made of a plate material having an isosceles triangle shape, and is arranged parallel to the support plate 17 with the apex angle facing rearward. The lever 5 is rotatably attached to the support plate 17 along the support plate 17 by a shaft member near one of the two base angles, and is rotatably attached to the vertically bent rear end of the trigger bar 4 near the other. The lever 5 has a through hole 51 for the operating portion near the apex angle, and a bait 52 is attached to the through hole 51 by a string so as to hang inside the capture cage 1. Thereby, the lever 5 is swingably provided on the capture cage 1 so as to be selectively positioned at a standby position where the trigger bar 4 is positioned at the engagement position and an operating position where the trigger bar 4 is positioned at the release position when the operating portion is pulled from inside the capture cage 1.

[0017] As shown in FIGS. 6 and 7, the locking device 6 is disposed in a gap parallel to the opposing surfaces of the L-shaped steel 22, and has a plate member attached to the opposing surfaces by a shaft member and provided to be rotatable along the gap. The plate member has an engaging portion 61 and a stopper 62. The engaging portion 61 is biased to project by its own weight along the path of the shutter 3 that slides along the guide groove of the shutter guide 2. The stopper 62 extends vertically downward with respect to the engaging portion 61 on the front side of the engaging portion 61, and rotates the engaging portion 61 so as to allow the shutter 3 to pass downward when the engaging portion 61 is pushed downward by the shutter 3 from above and rotates downward, and hits the horizontal member 21 when the engaging portion 61 rotates upward, and is arranged so that the engaging portion 61 does not come off the outside of the path of the shutter 3. When the shutter 3 is in the lower position, the engaging portion 61 abuts on the upper part of the shutter 3. Thereby, the locking device 6 restrains the upward movement of the shutter 3 when the shutter 3 is in the lower position.

[0018] The shutter guide 2 is detachably fixed to the frame member 12 with bolts via a mounting plate, and the shutter 3 is provided to slide along the guide groove of the shutter guide 2. As shown in FIG. 8, the box trap can be disassembled and assembled with the capture cage 1, the shutter guide 2, and the shutter 3.

[0019] The box trap is used by hanging, inside the capture cage 1, bait 52 or the like that attracts the capture target with a string or wire to the operating portion of the lever 5. When the capture target is attracted to the bait 52 and enters the capture cage 1 from the opening 11, and pulls the bait 52, the lever 5 is pulled through the string, and the operating portion is positioned from the standby position to the operating position, and the trigger rod 4 is positioned from the engaged position to the released position. The trigger rod 4 disengages from the locking portion at the released position, and the shutter 3 falls by its own weight from the upper position to the lower position to close the opening 11. When the shutter 3 falls to the lower position and closes the opening 11, the engaging portion 61 of the locking device 6 abuts on the upper part of the shutter 3, restraining the upward movement of the shutter 3.

[0020] This allows the target to be trapped inside the capture cage 1 and captured. The trigger rod 4 engages with the locking part in the engagement position and supports the shutter 3, so when it disengages from the locking part in the release position, it encounters frictional resistance. Therefore, small animals with little strength will have difficulty positioning the trigger rod 4 in the release position, preventing the unintentional capture of small animals other than the target large animals such as bears, and improving the capture efficiency of large targets. In addition, the locking device 6 prevents the target trapped inside the capture cage 1 from lifting the shutter 3 and escaping out through the opening 11.

[0021] The box trap can be disassembled into a capture cage 1, a shutter guide 2, and a shutter 3 for easy transport. Preferably, each of the capture cage 1, shutter guide 2, and shutter 3 is light enough to be carried by one person. The lever 5 may have multiple through holes 14 in the operating part, and each through hole 14 may be located at a different distance from the mounting position on the support plate 17. In this case, the resistance force that positions the trigger rod 4 in the release position can be changed by changing the position of the operating part to which the bait is attached. Box traps may be used to capture both large and small pests. They may also be used in the sea or other bodies of water to capture aquatic creatures such as sharks. [Explanation of Symbols]

[0022] 1. Capture cage, 2. Shutter guide, 3. Shutter, 4. Trigger rod, 5 Lever, 6 Locking device, 11 Opening, 12 Frame material, 13 Protrusion, 14 through hole, 15 guide pipe, 16 L-shaped steel, 17 support plate, 21 cross member, 22 L-shaped steel, 51 through hole, 52 bait, 61 engaging part, 62 stopper

Claims

1. It has a capture cage, a shutter guide, a shutter, a trigger rod, and a lever. The aforementioned capture cage has an opening that allows the target to be contained inside, The shutter guide is provided in the opening. The shutter is provided so as to slide along the shutter guide between an upper position that opens the opening and a lower position that closes the opening, and so as to fall by its own weight from the upper position to the lower position, and has a locking part for holding it in the upper position. The trigger rod is provided in the capture cage so as to be selectively positioned between an engaged position in which it engages with the locking portion and supports the shutter and holds it in the upper position, and a released position in which it disengages from the locking portion. The lever has an operating part and is attached to the trigger rod, and is swingably mounted on the capture cage so as to be selectively positioned between a standby position that positions the trigger rod in the engagement position and an operating position that positions the trigger rod in the release position when the operating part is pulled from inside the capture cage. A distinctive box trap.

2. The box trap according to claim 1, characterized in that it has a locking device provided on the capture cage or the shutter guide, which restrains the upward movement of the shutter when the shutter is in the lower position.

3. The box trap according to claim 1 or 2, characterized in that the capture cage, the shutter guide, and the shutter are provided in a manner that allows for disassembly and assembly.

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