JP7291827B1 - small animal trap - Google Patents

Abstract

Kind Code: A1 A trap door can be reliably closed through a connecting wire by the tilting motion of a tread member due to the pressure of a small animal. The interlocking mechanism can be simplified because it is a structure that allows An interlocking mechanism (5) is provided with a connecting wire (6) for connecting a tread plate member (4) and a closed door body (3), the front end of the connecting wire is fixedly connected to the locked door body, and the rear end of the connecting wire is connected. A magnet MG that can be magnetically attached to the tread plate member is provided at the part, and the connection wire is in a tension state due to the magnetic attachment between the tread plate member and the magnet, and the lock-in door body is held in a horizontal open state. An opening/closing mechanism K is provided for closing the confinement door body from the horizontal open state to the vertical closed state 3H when the magnet separates from the tread member against the magnetic attraction force, and the connecting wire is in a relaxed state. and a closing mechanism D capable of blocking or permitting the opening operation of the. [Selection drawing] Fig. 1

Description

The present invention relates to a small animal trap used for catching small animals such as stray kittens, stray cats, mice, and weasels.

Conventionally, this type of small animal trap includes an entrance into which small animals can enter at the front of a cage body, a confinement door capable of opening and closing the entrance, and a tread member in the cage body. is arranged so as to be tiltable, and is provided with an interlocking mechanism for interlocking the opening/closing operation of the confinement door and the tilting operation of the tread member by a small animal.

Utility Model Registration No. 3180310

However, in the case of the above-mentioned conventional structure, as an interlocking mechanism for interlocking the opening and closing operation of the confining door and the tilting operation of the treadle member by the small animal, the treadle member is tilted to move forward and backward to move the confinement door from the horizontal open state. A connecting rod and a guide plate for the connecting rod are used for closing the door in a vertical closing state, and the connecting rod and the guide plate for the connecting rod are made of so-called rigid bodies. In addition, the flexibility of incorporating the interlocking mechanism for interlocking the operations of the motor is lowered, and the structure of the interlocking mechanism tends to be complicated.

An object of the present invention is to solve these problems. A confinement door capable of opening and closing a mouth is provided, and a tread plate member to be stepped on by a small animal is arranged in the cage body so as to be tiltable, and the opening and closing operation of the confinement door and the tilting movement of the tread member by the small animal are provided. The interlocking mechanism is provided with a linking wire for linking the tread plate member and the locking door body, and the front end of the linking wire stops at the locking door body. A magnet that can be magnetically attached to the tread plate member is provided at the rear end of the linking wire, and the linking wire is in a tensioned state due to the magnetic attachment between the tread plate member and the magnet, and the locking door body is closed. The horizontal open state is maintained, and when the tread member tilts and the magnet separates from the tread member against the magnetic attraction force, the connecting wire is in a relaxed state and the locking door body is moved vertically from the horizontal open state. The small animal trap is characterized by being provided with an opening/closing mechanism for closing the door in a closed state, and comprising a closing holding mechanism capable of blocking or permitting the opening operation of the confinement door.

In a second aspect of the present invention, as the closing holding mechanism, a pressing rod capable of blocking or permitting the opening operation of the closing door is provided on the front surface of the cage body so as to be vertically movable. The invention according to claim 3 is characterized in that, as the opening and closing mechanism, a locking rod is disposed on the front surface of the locking door body, and the locking rod is linked in a tensioned state. It is characterized in that a wire is contacted and locked so that the locking door can be held stationary in the horizontal open state. A locking rod portion is arranged on the front surface of the entrance door body, and the pull-out position of the locking rod portion in the horizontal open state is arranged so as to be adjustable, and the connecting wire is in a tensioned state around the locking rod portion. is provided so as to be able to hold the locking door body stationary in the horizontally open state by contact locking, and the opening and closing operation of the locking door body according to claim 5. It is characterized by disposing a guide roller for guiding the forward and backward movement of the connecting wire associated with the movement of the wire.

As described above, according to the first aspect of the present invention, the treadle member and the confinement door are provided as an interlocking mechanism for interlocking the opening/closing operation of the confinement door body with the tilting motion of the treadle member by a small animal. A connecting wire is provided for connecting with the body, the front end of the connecting wire is fixedly connected to the confining door body, and the rear end of the connecting wire is provided with a magnet that can be magnetically attached to the tread member. The linking wire becomes tense due to the magnetic attraction between the tread and the magnet, and holds the confinement door body in the horizontal open state. Since it is constructed with an opening/closing mechanism that closes the closed door body from the horizontal open state to the vertical closed state in the relaxed state, the door is closed via the connecting wire by the tilting movement of the tread member due to the stepping pressure of the small animal. The body can be reliably closed, and the tread member and the confinement door are interlocked by using a bendable connecting wire, so that the interlocking mechanism can be simplified and various size cages It is possible to improve the versatility of incorporation into the main body, to expand the range of applications, and to have a closing holding mechanism that can prevent or allow the opening operation of the closing door body. The opening and closing operation of the door body can be reliably performed.

Further, in the invention according to claim 2, as the closing holding mechanism, a holding rod capable of blocking or permitting the opening operation of the closing door is provided on the front surface of the cage body so as to be vertically movable. Therefore, the movement of the hold-down rod from the lower position to the upper position permits the opening operation of the lock-in door, and the hold-down rod moves by its own weight as the lock-in door closes. By moving downward from the upper position to the lower position, the opening operation of the locking door can be prevented, and the opening and closing operation of the locking door can be reliably performed. In this case, as the opening/closing mechanism, a locking rod is provided on the front surface of the locking door body, and a connecting wire in a tensioned state is brought into contact with and locked to the locking rod to horizontally open the locking door body. Since it is provided so that it can be held stationary, the opening and closing operation of the locking door body can be reliably performed. A locking rod portion is provided on the front surface, and the drawn-out position of the locking rod portion in the horizontal open state is arranged so as to be adjustable in the front-rear direction. Since the locking door is provided so that it can be held stationary in the horizontal open state, the opening and closing operation of the locking door can be reliably performed. Since the guide rollers are provided to guide the forward and backward movement of the connecting wire accompanying the opening and closing motion of the door, the connecting wire can be smoothly guided, and the tilting motion of the tread member and the opening and closing motion of the closed door. can be reliably interlocked with each other, the closing door can be reliably opened and closed, and the small animal can be reliably captured.

1 is an overall perspective view of an embodiment of the present invention in a closed state; FIG. 1 is an overall front view of an embodiment of the present invention in a closed state; FIG. 1 is an enlarged front perspective view of an embodiment of the present invention in a closed state; FIG. FIG. 4 is an overall rear view of the closed state of the embodiment of the present invention; 1 is an overall side cross-sectional view of an embodiment of the present invention in an open state; FIG. FIG. 4 is an enlarged front side cross-sectional view of the embodiment of the present invention in an open state; FIG. 4 is an enlarged front plan view of the embodiment of the present invention in an open state; FIG. 4 is an enlarged rear side cross-sectional view of the embodiment of the present invention in an open state; FIG. 4 is a partially enlarged rear sectional view of the closed state of the embodiment of the present invention; It is a partial enlarged plan view of the closed state of the embodiment of the present invention. FIG. 4 is a partially enlarged rear cross-sectional view of the open state of the embodiment of the present invention; FIG. 4 is an operation explanatory diagram of the closed state of the embodiment of the present invention; 1 is an overall side cross-sectional view of an embodiment of the present invention in a closed state; FIG.

1 to 13 show an embodiment of the present invention, which can be roughly divided into an entrance portion 2 through which a small animal Q can enter is formed in the front surface 1d of a cage-like main body 1, and an entrance portion 2 which can be opened and closed. A trap door 3 is provided, and a tread member 4 to be stepped on by a small animal Q is disposed in the cage body 1 so as to be tiltable. The interlocking mechanism 5 is provided with a linking wire 6 for linking the tread plate member 4 and the confining door 3, and the front end of the linking wire 6 is connected to the confining door 3. A magnet MG which is fixedly connected to the door 3 and can be magnetically attached to the tread member 4 is provided at the rear end of the linking wire 6, and the linking wire 6 is in a tensioned state due to the magnetic attraction between the tread plate member 4 and the magnet MG. When the magnet MG separates from the footboard member 4 against the magnetic attraction force due to the tilting motion of the footboard member 4, the connecting wire 6 is relaxed and the door is closed. An opening/closing mechanism K is provided for closing the body 3 from a horizontal open state 3K to a vertical closed state 3H, and a closing holding mechanism D is provided to prevent or allow the opening operation of the locking door body 3.

In this case, in the cage body 1, the bottom body 1a, the left and right side bodies 1b and 1b, and the top body 1c are grid-shaped with a plurality of wires W, as shown in FIGS. It is formed in a frame shape, a handle T is provided on the rear side of the upper surface body 1c so that it can be raised and lowered, and an entrance portion 2 into which a small animal Q can enter is formed on the front surface 1d of the cage body 1. A confinement door 3 formed in a lattice frame shape by a plurality of wire rods W capable of opening and closing is provided, and an outlet 7 from which a small animal Q can be taken out is formed in the rear surface 1e of the cage-like main body 1. A take-out door body 8 formed in a lattice frame shape by a plurality of wire rods W capable of opening and closing the portion 7 is provided.

In this case, as shown in FIGS. 2, 3 and 6, the locking door 3 is formed to have a size capable of opening and closing the entry port 2, and the upper side rod portion 3a of the locking door 3 is formed. is connected to the opening upper side rod portion 2a of the entrance portion 2 by a ring-shaped pivot portion M, and the confinement door body 3 can be freely opened and closed in a horizontal open state 3K and a vertical closed state 3H with the pivot portion M as a fulcrum. It is configured by setting in

Further, as the closing holding mechanism D, a pressing rod F capable of blocking or permitting the opening operation of the closing door 3 is disposed on the front face 1d of the cage body 1 so as to be vertically movable. As described above, a pair of left and right guide rods G, G are vertically provided on the front surface 1d of the cage body 1 along the left and right sides of the opening of the entrance portion 2, and a pressing rod F is vertically closed between the guide rods G, G. As shown in FIG. 6, the holding rod F is vertically movably engaged at 3H, and the relative position of the holding rod F with respect to the guide rods G G is changed from the horizontal open state 3K of the locking door body 3 centering on the above-mentioned pivot M to the vertical closed state. With the closing operation to state 3H, the holding rod F between the guide rods G is placed at a position where it can move downward from the upper position to the lower position by its own weight. It is constructed so as to hold the entrance portion 2 closed by pressing the front surface of the entrance door body 3 . As the closing mechanism D, it is also possible to employ a structure in which a tension spring is suspended between the cage body 1 and the locking door 3 to prevent or allow the opening operation of the locking door 3. . In the case of this spring structure, the cage body 1 and the cage body 3 collided with each other when the cage door body 3 was closed instantly, and the impact sound and the vibration of the cage body 1 caused by this collision were captured. A small animal Q such as a stray cat may be frightened.

The tread member 4 is made of a magnetically attachable ferromagnetic material such as metal, and is disposed so as to be tiltable in the cage body 1. In this case, as shown in FIGS. As described above, the tread plate member 4 is formed by fixing the tread plate member 4b to the upper surface of the tread plate frame 4a. A fulcrum rod 4d as a wire rod W forming the member 1a is pivotally connected by a bearing ring 4e, and a knob rod capable of tilting the tread plate member 4 from a position outside the cage body 1 is attached to the rear side of the tread plate member 4. 4f is protruded, and the footboard member 4 is provided so as to be tiltable with the fulcrum rod 4d as the tilting center S.

An interlocking mechanism 5 has a structure for interlocking the opening/closing operation of the confining door 3 and the tilting operation of the footboard member 4 by the small animal Q. In this case, as shown in FIGS. As described above, the linking wire 6 for linking the tread plate member 4 and the locking door member 3 to the interlocking mechanism 5 is provided on the cage body 1 so as to be movable forward and backward. A magnet MG is fixedly connected to the lower part of the locking door 3, and a magnet MG that can be magnetically attached to the step plate member 4 is provided at the rear end of the link wire 6. The link wire 6 is magnetically attached to the step plate member 4 and the magnet MG. The lock-in door 3 is held in the horizontal open state 3K in a tension state, and when the magnet MG separates from the step plate member 4 against the magnetic attraction force due to the tilting motion of the step plate member 4, the connecting wire 6 is in a relaxed state. An opening/closing mechanism K is provided for closing the closing door 3 from the horizontal open state 3K to the vertical closed state 3H.

In this case, as shown in FIGS. 2 and 6, as the opening/closing mechanism K, a locking rod portion 9 is disposed on the front surface of the locking door body 3, and the locking rod portion 9 is arranged in the front-rear direction in the horizontal open state 3K. (up and down in vertical closing state 3H) is arranged so as to be adjustable, and connecting wire 6 in a taut state is contacted and locked to locking rod portion 9 to bring locking door body 3 into horizontal open state 3K. In this case, as shown in FIG. 2, a pair of left and right bushings 3b, 3b are fixed to the front surface of the closing door 3, and an upper rod 9a and a pair of left and right shafts are attached to the bushings 3b, 3b. A pair of left and right side rods 9b, 9b of the locking rod portion 9, which also serves as a handle T on the front side of the gate shape, is loosely inserted to form the gate-shaped locking rod portion 9. In the horizontal open state 3K of the locking door body 3, it is inserted movably in the front-rear direction, and as shown in FIGS. The front end of the linking wire 6 is fastened and connected by a fastener 6a, and as shown in FIGS. 1 and 4, a magnet MG that can be magnetically attached to the footboard member 4 is fastened to the rear end of the linking wire 6 by a fastener 6b. However, in the vertically closed state 3H of the locking door body 3, as shown in FIGS. and the pressing rod F at the lower position, the front position of the upper rod 9a of the locking rod portion 9 in the lowered state, the front position of the upper side rod portion 3a of the locking door body 3, the upper side of the opening of the entrance portion 2 Via the front position of the rod portion 2a and the upper position of the upper surface body 1c of the cage body 1, it is hung inside the cage body 1 at the rear position of the cage body 1, and below the hanging connecting wire 6. A magnet MG that can be magnetically attached to the footboard member 4 is attached to the end portion by a fastener 6b. From the front end of the connecting wire 6 fixedly connected to the rod 3c, between the holding rod F and the upper surface of the locking door body 3, above the upper side rod part 3a of the locking door body 3, and the entrance part 2, the upper position of the upper rod 9a of the locking rod 9 at the adjusted drawn position, and the upper position of the upper surface body 1c of the cage main body 1. A magnet MG that can be magnetically attached to the footboard member 4 is attached to the rear end of the suspended connecting wire 6 by a fastener 6b.

In this case, as shown in FIGS. 5, 6 and 7, in order to maintain the horizontal open state 3K of the locking door 3, the pressing rod F is moved to the upper position by the guide rods G.G. to allow the upward opening operation of the locking door 3, and the opening and closing mechanism K causes the locking door 3 to open upward about the pivot M, thereby opening the entry port 2, as shown in FIG. As shown in FIGS. 7 and 8, in the horizontal open state 3K of the lock-in door 3, the magnet MG at the rear end of the connecting wire 6 is magnetically attached to the footboard member 4, and the locking rod is engaged with the bushings 3b and 3b. FIG. 6 shows the closing operation of the locking door 3 with the hinged portion M serving as the center of the opening and closing movement of the locking door 3 being the fulcrum, by adjusting the drawn-out position of the cage body 1 of the portion 9 in the front-rear direction. In the moment of the clockwise force inside and the horizontal open state 3K of the locking door body 3, the connecting wire 6 in the tension state comes into contact with the upper rod 9a of the locking rod portion 9 whose pulled-out position is adjusted. 6 against the closing motion at the contact position P, and the tensioned link wire 6 at the contact position P and the force against the closing motion at the contact position P. Due to the resulting frictional force between the connecting wire 6 and the upper rod 9a of the locking rod portion 9, the locking door body 3 is held stationary in the horizontal open state 3K.

That is, for example, if the distance from the pivot portion M of the locking rod portion 9 to the contact position P is too short, the moment of the clockwise force of the closing operation of the locking door body 3 will increase at the contact position P. It becomes larger than the counterclockwise moment due to the force resisting the mouth closing operation, and the connecting wire 6 in the tension state cannot press and hold the upper rod 9a of the locking rod portion 9, and the tension state of the connecting wire 6 is maintained. Therefore, the locking door 3 cannot be held in the horizontal open state 3K. For this reason, depending on the magnitude of the magnetic attraction force between the magnet MG and the tread member 4, the locking rod portion 9 may be loosely inserted into the bushings 3b, 3b in consideration of the balance, the drag force, and the frictional force. It is necessary to adjust the position by pulling out the connecting wire 6 to the contact position P where the tensioned state of the connecting wire 6 can be maintained. If the magnetic attraction force between the magnet MG and the tread member 4 is sufficiently large, the locking door body 3 can be moved upward from the horizontal position of the pivot M without adjusting the pull-out position of the locking rod portion 9. By further opening operation, the locking door 3 can be held stationary in the horizontal open state 3K only by the tension of the connecting wire 6, and the magnet MG separates from the tread member 4, so that the connecting wire 6 is in a relaxed state. Then, the closing door 3 moves from the horizontal open state 3K to the vertical closed state 3H with snap action. In this case, the bearing cylinders 3b, 3b allow the locking rod portion 9 to freely draw out the cage-like body 1 in the longitudinal direction, but the closing door 3 is held stationary in the horizontal open state 3K. By previously fixing the locking rod portion 9 to the locking door member 3 at a position where it can be pulled out, it is possible to eliminate the need for adjustment of the drawn-out position.

In this case, as shown in FIG. 1, a plurality of guide rollers R, in this case, three guide rollers R, guide the forward and backward movement of the connecting wire 6 accompanying the opening and closing operation of the locking door 3. It is arranged on the upper surface of the cage-like main body 1 .

4, 9, 10 and 11, the outlet 7 and the outlet door 8 are provided on both sides of the right and left openings of the outlet 7 on the rear surface 1e of the cage body 1 as shown in FIGS. The guide frame plates 7a, 7a having a U-shaped flat cross section are fixed in the vertical direction. The formed take-out door body 8 is provided so as to be vertically openable and closable, and a regulating rod 7c is arranged on one guide frame plate 7a so as to move back and forth by means of a spring 7d, and the regulating rod 7c is pulled against the spring 7d. The regulating rod 7c is pulled out from the lattice of the wire rod W of the take-out door 8 to allow the take-out door 8 to move vertically, and the take-out door 8 is pulled up to open the take-out port 7. By 7d, the restricting rod 7c is inserted into the grid of the wire W of the take-out door 8, and the wire W of the take-out door 8 and the restricting rod 7c engage to hold the take-out door 8 open at the upper position. are doing.

Since this embodiment has the above construction, as shown in FIGS. 5, 6 and 7, the closed door body 3 is allowed to open by the closing holding mechanism D. G and G move the door 3 from the lower position to the upper position to permit the upward opening operation of the door 3, and the opening/closing mechanism K causes the door 3 to open upward about the pivot portion M. 6, 7 and 8, the magnet MG at the rear end of the connecting wire 6 is magnetically attached to the tread plate member 4 in the horizontal open state 3K of the confinement door 3 as shown in FIGS. In this case, the bearing cylinders 3b, 3b allow the locking rod portion 9 to draw out the cage body 1 in the front-rear direction, and the connecting wire 6 maintains the tensioned state so that the closing door 3 is horizontally opened. 3K is adjusted to a contact position P where it can be held, and as a result, as shown in FIG. is held in the horizontal open state 3K, and food E, which is a favorite food of the small animal Q, is placed behind the footboard member 4 in the cage body 1 and waits for capture.

In this standby state, as shown in FIG. 5, when a small animal Q enters through the entrance portion 2 and presses the footboard member 4, the weight of the small animal Q causes the footboard member 4 to tilt around the tilting center S. As shown in FIG. 12, when the tread plate member 4 tilts and the magnet MG separates from the tread plate member 4 against the magnetic attraction force between the magnet MG and the tread plate member 4, the connecting wire 6 is in a relaxed state and the confinement door body 3 is closed. is moved from the horizontal open state 3K to the vertical closed state 3H. It follows its own weight and moves downward to the position, and by the downward movement of the pressing rod F, the pressing rod F presses the front surface of the locking door body 3, and an unexpected movement centering on the pivotal attachment part M of the locking door body 3 The upward opening operation is blocked, and the small animal Q is confined and captured in the cage body 1. After capture, the take-out door 8 on the rear surface 1e of the cage body 1 is raised and opened, and the small animal Q is removed. It is to be taken out from the take-out port 7 .

Therefore, as an interlocking mechanism 5 for interlocking the opening/closing operation of the confining door 3 and the tilting operation of the tread member 4 by the small animal Q, the tread member 4 and the confining door are shown in FIGS. A linking wire 6 for linking the body 3 is provided on the cage body 1 so as to be movable back and forth in the forward and backward direction. A magnet MG that can be magnetically attached to the tread member 4 is provided at the rear end of the tread plate member 4, and the magnetic attachment between the tread plate member 4 and the magnet MG causes the connecting wire 6 to be in a tense state, thereby moving the confinement door body 3 to the horizontal open state 3K. When the magnet MG separates from the tread member 4 against the magnetic attraction force due to the tilting motion of the tread member 4, the linking wire 6 is in a relaxed state and the lock door body 3 is moved from the horizontal open state 3K to the vertical closed state 3H. Since the opening and closing mechanism K for closing the door is included in the opening and closing mechanism K, it is possible to reliably close the door 3 via the connecting wire 6 by tilting the tread member 4 due to the pressure of the small animal Q, and bending the door. Since the tread plate member 4 and the lock-in door body 3 are interlocked by using the flexible connecting wire 6, the interlocking mechanism 5 can be simplified and the installation flexibility for the cage-shaped main body 1 of various sizes is possible. The opening and closing of the confinement door 3 is possible because the closing holding mechanism D that can prevent or allow the opening operation of the confinement door 3 is provided. operation can be performed reliably.

In this case, as shown in FIG. 2, as the closing mechanism D, a pressing rod F capable of blocking or permitting the opening operation of the closing door 3 is arranged on the front surface 1d of the cage body 1 so as to be vertically movable. Therefore, the movement of the pressing rod F from the lower position to the upper position permits the opening operation of the locking door 3, and the closing operation of the locking door 3 is accompanied by the When the pressing rod F moves downward from the upper position to the lower position by its own weight, the opening operation of the locking door 3 can be prevented, and the opening and closing operation of the locking door 3 can be reliably performed. In this case, as shown in FIGS. 6 and 7, as the opening/closing mechanism K, an engaging rod portion 9 is disposed on the front surface of the locking door body 3, and the connecting wire 6 in a tensioned state is attached to the engaging rod portion 9. Since the locking door body 3 can be held stationary in the horizontal open state 3K by contact locking, the opening and closing operation of the locking door body 3 can be reliably performed. As described above, as the opening/closing mechanism K, a locking rod portion 9 is arranged on the front surface of the locking door body 3, and the pulled-out position of the locking rod portion 9 in the horizontal open state 3K is arranged so as to be adjustable. The connecting wire 6 in a tensioned state is contacted and locked to the locking rod portion 9, and the locking door body 3 can be held stationary in the horizontal open state 3K. can be done with certainty.

Further, in this case, as shown in FIG. 1, guide rollers R for guiding forward and backward movement of the connecting wire 6 accompanying the opening and closing operation of the locking door 3 are provided, so that the connecting wire 6 can be smoothly guided. The tilting operation of the tread plate member 4 and the opening/closing operation of the confining door 3 can be reliably interlocked, the opening/closing operation of the confining door 3 can be reliably performed, and the small animal Q can be reliably held. can be captured.

It should be noted that the present invention is not limited to the above-described embodiments, and includes a presser rod F, a magnet MG, an opening/closing mechanism K, a guide roller R, a closing holding mechanism D, a cage body 1, a tread member 4, an interlocking mechanism 5, The structure of the connecting wire 6, the locking rod portion 9, etc. is designed by appropriately changing.

As described above, the intended purpose can be sufficiently achieved.

Q Small animal F Holding rod MG Magnet K Opening and closing mechanism R Guide roller D Closure holding mechanism 1 Cage-like main body 1d Front face 2 Entrance part 3 Closed door body 3K Horizontally open state 3H Vertically closed state 4 Tread member 5 Interlocking mechanism 6 Linking wire 9 locking rod

Claims (5)

An entry opening into which a small animal can enter is formed on the front surface of the cage body, and a confining door body capable of opening and closing the entry opening is provided, and a tread member to be stepped on by the small animal is tiltable within the cage body. and is provided with an interlocking mechanism for interlocking the opening/closing operation of the confinement door and the tilting operation of the footboard member by the small animal, and the interlocking mechanism interlinks the footboard member and the confinement door. A wire is provided, the front end of the linking wire is fixedly connected to the above-mentioned lock-up door, the rear end of the linking wire is provided with a magnet that can be magnetically attached to the step plate member, and the step plate member and the magnet are provided. When the linking wire becomes tense due to magnetic attraction with the tread plate member and holds the lock-in door body in the horizontal open state, and the magnet moves away from the tread plate member against the magnetic attraction force due to the tilting movement of the tread plate member. The connecting wire is in a relaxed state, and an opening/closing mechanism is provided for closing the locking door body from a horizontal open state to a vertical closing state, and a closure holding mechanism capable of blocking or permitting the opening movement of the locking door body is provided. A small animal trap characterized by comprising: 2. The small animal according to claim 1, wherein said cage-like main body has, as said closed mouth holding mechanism, a pressing rod capable of blocking or permitting the opening operation of said confining door body, which is vertically movably arranged on the front surface of said cage body. catcher. As the opening/closing mechanism, an engaging rod portion is arranged on the front surface of the locking door body, and a connecting wire in a tensioned state is brought into contact with and locked to the locking rod portion to stop the locking door body in a horizontal open state. 3. A small animal trap according to claim 1 or 2, characterized in that it is provided so as to be held. As the opening/closing mechanism, a locking rod portion is arranged on the front surface of the locking door body, and the locking rod portion is arranged such that a drawn-out position in the front-rear direction in the horizontally opened state is adjustable, and the locking rod portion 3. A small animal trap according to claim 1 or 2, characterized in that a connecting wire in a taut state is contacted and locked to said part so that said confinement door can be held stationary in a horizontal open state. 2. A small animal trap according to claim 1, further comprising guide rollers for guiding forward and backward movements of said connecting wire accompanying opening and closing operations of said confinement door.

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