Binding trap

Abstract

To provide a snare for capturing wild animals such as wild boars, deer, muntjacs, and palm civets. [Solution] A leaf spring 9 biased to move an operating member 6 upward is attached to a footboard 5, and the upward movement of an operating member 4 that releases a tether ring 3b in conjunction with the footboard 5 being stepped on is assisted by the biasing force of the leaf spring 9. When an animal steps on the footboard 5 with its leg, the tether ring 3b wound around the operating member 6 receives the biasing force of a coiled spring 4 to catch the leg, and the timing at which the operating member 6 around which the tether ring 3b is wound releases the tether ring 3b is made quick.

Description

[Technical field]

[0001] This invention relates to the technical field of snare traps used to capture wild animals such as wild boars, deer, muntjacs, and palm civets. [Background technology]

[0002] Nowadays, wild animals (vermin) such as wild boars, deer, muntjacs, and palm civets are appearing and causing damage to fields and forests in many places, and as a countermeasure, attempts are being made to capture these wild animals. In this case, snare traps are widely used as a tool for capturing these types of wild animals as they are simple and inexpensive. Generally, such a snare trap has a snare ring at the tip of a long wire that can be tightened via a spring, while the base end is attached to a fixed member (stationary object) such as a tree or a stake and set up at the capture site.When the animal steps (stomps) on a footplate attached to the main body of the trap and moves downward, the snare ring is released and, in response to the force of the spring, tightens and catches the stepping leg, thereby capturing the animal. The inventor of this invention has proposed this type of snare ring technology (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-72391 A Summary of the Invention [Problem to be solved by the invention]

[0004] The proposed snare ring is constructed by attaching a wire to two fixed members, which makes it possible to restrict the range of movement of a captured animal to a small area, making it easy to handle the captured animal, and is therefore highly convenient. In such a snare trap, a footplate is provided on a cylindrical base material so as to be movable up and down, and a pair of semicircular arc-shaped operating members (operating arms) are supported on the footplate via a shaft so as to be able to swing up and down. The operating members are placed in a downward position, crossing a fulcrum below the height of the shaft, and the snare ring is wound around the operating members, which are spread apart against the coil spring, and are then installed at the capture site. When the footplate is stepped on by the animal's leg and moves downward, the operating member is pushed up by the base material and moves upward past the fulcrum, and the snare ring is released from the operating member while receiving the urging force of the coil spring, so as to snare the stepped-on leg. Hunters who set such snare traps require the snare to be released instantly immediately after stepping on the footboard to ensure a reliable capture, and for this reason they attempt to set the operating member at a position slightly below the fulcrum height (thinking point position) where it passes over the fulcrum; however, when set in this manner, the operating member becomes unstable and can easily move upward and over the fulcrum when subjected to slight vibrations or shocks. This can lead to problems such as the operating member moving upward and over the fulcrum during the work of setting up the snare trap at site, making the setup work more difficult, and these are the issues that the present invention aims to solve. [Means for solving the problem]

[0005] The present invention has been created in view of the above-mentioned circumstances and with the objective of solving the above-mentioned problems. The invention of claim 1 relates to a base material to be installed at the site where an animal is captured, a wire having a base end attached to a fixed member near the capture site and a tip end formed with a tie ring to be tightened by a coil spring, a footplate that is attached to the base material so as to be movable up and down and moves down when stepped on by the animal's legs, a straddle piece and two leg pieces, the tip edges of both leg pieces being U-shaped with openings, the openings facing each other and the tip edges of the leg pieces being in contact with the footplate. This snare trap is equipped with a pair of operating members supported via a support shaft so that they can swing up and down freely, and the snare ring, which is expanded against the biasing force of a coiled spring, is wound around the operating member in a downward moving position in which the straddling portion is positioned lower than the support shaft and supported on the base material, and as the support shaft moves downward in conjunction with the downward movement of the footplate, the straddling portion moves upward relative to the operating member beyond the support shaft position, causing it to be released from the operating member and catch the leg of an animal.This snare trap is characterized in that it is provided with an assisting means for assisting the upward movement of the operating member in response to the downward movement of the footplate. The invention of claim 2 is a snare trap as described in claim 1, characterized in that the assisting means has a base end attached to the footboard and a contact portion that contacts the operating member from below, and the contact portion is composed of an assisting spring mechanism, which is configured to ensure a spring force by elastically deforming in response to the operating member being moved downward to a downward position, thereby assisting the upward movement of the operating member. The invention of claim 3 is a snare trap as described in claim 2, characterized in that the auxiliary spring is a leaf spring. The invention of claim 4 is a snare trap as described in claim 1, characterized in that the auxiliary means has a base end attached to the base material and a contact portion that contacts the operating member from below, and the contact portion is composed of an auxiliary elastic device, and the auxiliary elastic device is configured to secure a spring force by elastically deforming in response to moving the operating member downward to a downward position, thereby assisting the upward movement of the operating member. The invention of claim 5 is a snare trap as described in claim 1, characterized in that the assisting means is composed of an operating rod whose base end is attached to the footboard and whose tip end abuts the operating member from below, the operating rod being configured to be able to swing freely up and down around a pivot at its middle part supported by the base material, and the tip end moving upward in conjunction with the downward movement of the base end linked to the downward movement of the footboard is configured to assist the upward movement of the operating member. The invention of claim 6 is a snare trap as described in claim 5, characterized in that the upward movement of the operating member is assisted by the operating rod in such a way that the operating member is moved upward so that the straddling portion passes the support shaft position prior to the upward movement of the operating member when the footplate moves downward in a natural state and the straddling portion passes the support shaft position. Effect of the Invention

[0006] By using the device of claim 1, the snare ring, which has been expanded against the biasing force of the coiled spring, is released by the upward movement of the operating member which accompanies the downward movement of the support shaft, which is linked to the downward movement of the footplate, thereby creating a snare trap that catches the animal's legs.The rapid upward movement of the operating member which accompanies the downward movement of the footplate is assisted by the assisting means, so that the operating member can be reliably set in a stable waiting position with the straddling part lower than the position of the support shaft. By adopting the invention of claim 2, the assisting means is provided with a base end portion attached to the footboard and an abutment portion which abuts against the operating member from below, and the abutment portion is constituted by an assisting spring machine, and the upward movement of the operating member is assisted by the spring force secured by the assisting spring machine being elastically deformed in response to the operating member being moved downward to a downward position.As a result, the assisting means can be simply constituted by an assisting spring machine having a base end portion and an abutment portion, and although it is a snare trap having an assisting means, the structure is not complicated. By using the device as defined in claim 3, the auxiliary spring mechanism can be constructed from a leaf spring, thereby simplifying the structure. By adopting the invention of claim 4, the assisting means is provided with a base end attached to the base material and a contact portion that contacts the operating member from below, and the contact portion is composed of an assisting spring mechanism, which is elastically deformed in response to moving the operating member downward to a downward position, thereby ensuring a spring force that assists the upward movement of the operating member.Thus, although it is a snare having an assisting means, the structure is not complicated. By adopting the proposal of claim 5, the assisting means is composed of an operating rod whose base end is attached to the footboard and whose tip end abuts the operating member from below, and the operating rod is configured to be able to swing up and down freely with its middle part supported by the base material as a support axis, and the tip end, which moves upward in conjunction with the downward movement of the base end in conjunction with the downward movement of the footboard, is configured to assist the upward movement of the operating member.As a result, the upward movement of the operating member caused by stepping on the footboard with the foot is assisted by the tip end of the operating rod, which moves upward based on the principle of leverage, and even if the operating member is set in a stable standby position with its straddling part lower than the support axis position, the upward movement of the operating member to release the tether can be made quickly and reliably. By adopting the invention of claim 6, the upward movement of the operating member is assisted by the operating rod, which assists in moving the operating member upward so that the spanning portion passes the pivot position prior to the upward movement of the operating member when the footplate moves downward in the natural state and the spanning portion passes the pivot position.As a result, even if the operating member is set in a stable waiting position where the spanning portion is lower than the pivot position, the shackle ring is released at a stage in the process before it is released in the natural state, resulting in faster and more reliable release of the shackle ring. [Brief description of the drawings]

[0007] [Figure 1] FIG. 13 is an explanatory diagram showing the operation of the snare trap set at the capture site. [Diagram 2] 1 is a perspective view of a base material portion with a snaking ring wound therearound. FIG. [Diagram 3] 1A and 1B are a front view and a longitudinal sectional view of the substrate portion with the snaking ring wound thereon. [Figure 4] FIG. 2 is a plan view of the base material portion with the snaking ring wound thereon. [Diagram 5] FIG. [Figure 6] 1A is an exploded front view showing the leaf spring in a state in which it is to be installed, and FIG. [Figure 7] (A)(B)(C) are diagrams illustrating the process of tying up an animal's legs. [Figure 8] 1 is a perspective view of a substrate portion around which a tying ring is wound with a coil ring attached thereto; FIG. [Figure 9] 1A is an explanatory diagram showing the state in which a coil ring is caught by a wound tying ring, and FIG. 1B is a front view of the coil ring. [Figure 10] 11 shows a second embodiment, in which (A) and (B) are cross-sectional views of the main part of the operating member when the snaking ring is wound and when the snaking ring is released. [Figure 11] FIG. 13 is a plan view of a substrate portion according to a third embodiment. [Figure 12] FIG. 13 is a front view of a substrate portion according to a third embodiment. [Figure 13] 13A to 13C are explanatory views showing the operation process of the operating member in the third embodiment when an operating rod is provided, and FIG. 13D is an explanatory view showing the operation process of the operating member in the third embodiment when an operating rod is not provided. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a snare trap, which comprises a rectangular, square-tube-shaped base material (base, trap body) 2, a wire 3 having an attachment part 3a at its base end that can be detachably attached to a fixed member X such as a standing tree near the animal capture site, and a snare ring 3b at its tip that is tightened by the biasing force (stored force) of a coiled spring 4, a foot plate 5 that is rectangular and fitted loosely (inner fit) into the base material 2 so as to be able to move up and down, and that moves downward when the animal's leg Y is stepped on (steps on), and a pair of U-shaped operating members 6 that have a straddling part 6a and both leg pieces 6b, with openings at the tip edges of the both leg pieces 6b, and the pair of operating members 6 are supported by a support shaft 6c on the foot plate 5 so that they can swing up and down freely, with the openings facing each other. A detailed explanation of these components will be given below.

[0009] The step board 5 is arranged in a standby position in which the upper surface 5a is approximately flush with the upper edge 2c of the base material 2 by a stopper material 8 inserted so as to protrude into the base material 2 from a through hole 2b provided in the peripheral portion 2a of the base material 2, and from this state, when the foot Y of the animal steps on the step board 5, the stopper material 8 breaks (cuts off) and the step board 5 moves downward within the base material 2. Incidentally, the stopper material 8 is made of a breakable rod such as a toothpick or a matchstick.

[0010] Furthermore, the base piece 7a of the holding member 7 is attached to the longitudinal center of the pair of long sides 5b of the footboard 5 via screws 7aa, and the tip of the leg piece 6b of the operating member 6 is pivotally supported by the vertical piece 7b of the holding member 7 via a support shaft 7c so that the openings of both operating members 6 face each other. The operating member 6, whose leg piece 6b is pivotally supported by the support shaft 7b on the footboard 5 in this manner, has its spanning piece 6a abutted against the upper edge 2c of the base material 2 when the footboard 5 is maintained in a standby position by the stopper member 8. In this standby position, the operating member 6, whose spanning piece 6a is supported by the upper edge 2c of the base material 2, is in an inclined state with the support shaft 6c at the upper position and the spanning piece 6a at the lower position. In other words, the operating member 6 is in a fulcrum crossing state in which the straddling piece 6a is inclined downward beyond the height (position) of the support shaft 6c.

[0011] The snaring ring 3b, which has been expanded against the force of the coil-shaped spring 4, is wound (hanged or hooked) into the engaging groove 6d formed in the operating member 6, which is in this state of having crossed the fulcrum downward, so that the snaring trap 1 is set in a standby position. In this standby state, the operating member 6 is biased by the force of the coil-shaped spring 4 which biases the wound tie ring 3b, so that the straddling portion 6a is biased further downward. This prevents the operating member 6 in the standby position from inadvertently moving upward, causing the straddling portion 6a to move upward beyond the fulcrum that exceeds the height of the support shaft 6c.

[0012] The binding trap 1 thus constructed is provided with a leaf spring 9 as an example of the auxiliary means of the present invention. The leaf spring 9 is fastened (co-fastened) with the base piece portion 7a via a screw 7aa in a state where the base end portion 9a is sandwiched between the spacer 7d and the upper surface 5a of the footboard 5, and the tip end portion 9ba of the abutment portion 9b extending from the base end portion 9a is configured to abut from below against the operating member 6 in the standby position. In this embodiment, the contact portion of the tip edge portion 9ba of the abutment portion 9b with the operating member 6 is up to the corner portion between the leg piece portion 6d and the spanning piece portion 6c, but it may be the leg piece portion 6d alone, the spanning piece portion 6b alone, or both the spanning piece portion 6b and the leg piece portion 6c.

[0013] The abutment portion 9b thus configured extends at an angle from the base end portion 9b so that the tip end portion 9ba is at a higher position in its natural state when not subjected to elastic pressure (pressure), and is configured to elastically deform and store energy when the operating member 6 is moved downward to the standby position, and this stored energy assists in the upward movement of the operating member 6 from the standby position.

[0014] The tether ring 1 thus constructed is placed in a standby position at the capture site, and when the leg Y of the animal steps on the footplate 5, the stopper material 8 that receives the stepping load breaks, and the footplate 5 moves downward relative to the base material 2. In conjunction with this downward movement, the operating member 6 moves upward over the fulcrum where the support shaft 7c moves downward and the relative height of the straddling piece 6a to the support shaft 7c becomes higher, and as a result, the tether ring 3b is released instantly in a state where it contracts under the urging force of the coiled spring 4, and the leg Y is caught, and this upward movement of the operating member 6 is assisted by the abutting portion 9b that has been charged with energy, so that an efficient capture operation is performed.

[0015] In the snare ring device 1 of this embodiment configured as described above, consideration is given to prevent damage to the leg Y fastened to the snare ring 3b. The tie ring 3b is formed by folding the tip 3c of the wire 3 around the outer circumference of the penetrating member 10, tightening both ends of the wire with a sleeve 11, and then passing the wire 3 through the penetrating member 10. However, if it is left configured in this manner, the wire tip 3c, sleeve 11, and other components will remain exposed. If an animal whose leg Y is caught by the snaring ring 3b is left exposed in this state and struggles desperately in an attempt to escape, the leg Y will be severely injured by the exposed member, which will be an obstacle when attempting to release the captured animal.

[0016] In order to avoid this, in this embodiment, a protective coil loop 12 is fitted and assembled onto the wire 3 at the tying loop 3c portion. The coil loop 12 is configured so that, for the sleeve 11 and wire tip 3c portions which are particularly likely to injure the foot, a dense coil section 12a with a narrow pitch with almost no gaps covers the sleeve 11 and wire tip 3c portions in a tightly fitted state so as to immobilize them, and for the portion of the wire 3 closer to the penetrating member 10, a coarse coil section 12b with a coarse pitch fits loosely to cover the wire 3, thereby preventing injury to the caught leg Y.

[0017] Furthermore, the coarse coil portion 12b of the coil wheel 12 is charged with energy by being pressed in the coil length direction, but this charged force is set to be smaller than the charged force of the coil-shaped elastic machine 4 that biases the tying ring 3b. As a result, when the coil wheel 12 is in a state before capture in which the tying ring 3b is wound around the operating member 6, the tip of the coarse coil portion 12b is separated from the penetrating member 10. However, when the leg Y is tied up, the tip of the coarse coil portion 12b abuts against the penetrating member 10 or is closely opposed to the penetrating member 10 depending on the thickness of the leg Y. In this way, when the leg Y is thin and the tip of the coarse coil portion 12b abuts against the penetrating member 10, the coarse coil portion 12b may shrink due to the biasing force of the coil-shaped elastic machine 4. In this way, the caught leg Y is prevented from slipping out of the tying ring 3b, and the leg Y can be protected.

[0018] In the embodiment of the present invention configured as described above, the tether ring 3b, which has been expanded against the biasing force of the coiled spring 4, is released as the straddle portion 6a of the operating member 6 moves upward relative to the stepping plate 5 as the support shaft 6c moves downward in conjunction with the downward movement of the stepping plate 5 caused by the animal's leg Y stepping on it, and thus ties up the animal's leg Y. However, since the relative upward movement of the operating member 6 caused by the downward movement of the stepping plate 5 is assisted by the leaf spring 9 which constitutes the assisting means, the operating member 6 can be quickly and reliably released in response to the stepping on of the animal's leg Y, even if the operating member 6 is set in a stable standby position in which the straddle portion 6a is lower than the position of the support shaft 6c.

[0019] In this case, the leaf spring 9 constituting the assisting means is configured to have a base end 9a attached to the footboard 5, and an abutment portion 9b that abuts the operating member 6 from below, and the abutment portion 9b secures a biasing force by elastically deforming in response to the operating member 6 being moved downward to the downward position, and the secured biasing force assists the upward movement of the operating member 6, so that the assisting means can be made of a simple structure, the leaf spring 9.

[0020] Incidentally, the present invention is not limited to the above-described embodiment, but may be modified, for example, as in a second embodiment shown in FIG. In this device, the assisting means is constructed using a coil spring 13, which is an example of an assisting elastic device, and the base end 13a of the coil spring 13 is embedded in a fitting groove 2d provided at the portion where the spanning portion 6a of the base material 2 abuts, and the tip of the abutment portion 13b extending from the base end 13a abuts against the spanning portion 6a of the operating member 6 from below. With this configuration, the upward movement of the operating member 6, which is inclined so that the straddling portion 6a is at a lower position, can be assisted by the stored biasing force of the coil spring 13, thereby enabling the operating member to move upward quickly and reliably, and the shackle ring 6c to be released quickly and reliably as a result of this upward movement.

[0021] Furthermore, when the assisting means is constructed in this manner using an assisting elastic device, the coil spring 13 of the second embodiment can be replaced with a leaf spring whose base end is fixed to the substrate 2 and whose abutment portion extending from the base end abuts against the operating member from below.

[0022] Furthermore, the present invention can also be implemented as in the third embodiment shown in FIG. 11 and subsequent figures. This device uses an operating rod 14 as an auxiliary means and utilizes the principle of a lever, with the base end 14a of the operating rod 14 being supported by a vertical piece 7b of the retaining member 7 via a support shaft 14b so that it can swing freely up and down while being attached to the footboard 5, while the tip end 14c of the operating rod 14 abuts against the lower end of the operating member 6. Furthermore, a fulcrum shaft 14d that abuts against the upper end edge 2c of the base material 2 is provided at the middle portion of the operating rod 14 in the longitudinal direction. Incidentally, the support shaft 14b is configured to be separate from the support shaft 6c of the operating member 6, but it goes without saying that they may be the same. Also, the support shaft 14d is configured to abut against the upper end edge portion 2c of the base material 2, but it may be configured to be pivotally supported in the base material 2 by a long hole or the like in a state in which movement in the length direction is permitted.

[0023] In this embodiment, the operating rod 14 is constructed from a long vertical plate material, and in the waiting position before the animal's leg Y steps onto the footboard 5 (see Figure 12), the fulcrum axis 14d is supported in a resting state so as to be movable in the longitudinal direction of the operating rod 14 relative to the upper edge 2c of the base material 2, and the tip 14c is arranged in a state in which it abuts against the operating member 6 from below. When the animal's leg Y presses down on the footplate 5, the footplate 5 moves downward relative to the base material 2, and the base end 14a of the operating rod 14 moves downward together with the footplate 5. In response to this downward movement, the fulcrum shaft 14d moves toward the shaft 14b, becoming a swinging fulcrum for the operating rod 14, and the tip end 14c moves upward, assisting the upward movement of the operating member 6.

[0024] The upward movement of the operating member 6 is assisted by the operating rod 14 because the operating rod 14 is supported by the base material 2 at its intermediate portion. As a result of the footplate 5 moving downward, the support shaft 6c of the operating member 6 and the support shaft 14b of the operating rod 14 move downward at the same speed (timing). On the other hand, the straddle portion 6a of the operating member 6 moves upward from the state shown in FIG. 12, assisted by the upwardly moving tip portion 14c of the operating rod 14, with the fulcrum shaft 14d as the oscillating support shaft (see FIG. 13(A)). The operating member 6 then passes through a pivot point state (see FIG. 13(B)) in which it is horizontal to the support shaft 6c, and the straddle portion 6a passes the support shaft 7c position, causing the tether ring 3b to be released. This operation occurs prior to the timing at which the operating member 6 moves upward beyond the fulcrum, beyond the pivot point state where the straddle portion 6a is horizontal with the support shaft 6c, when the operating rod 14 is not provided (see Figure 13 (D)), thereby facilitating the upward movement of the operating member 6 quickly and reliably. As a result, even if the operating member 6 is in a stable position with the straddling portion 6a lower than the position of the support shaft 6c when it is in the standby position, the upward movement of the operating member 6 over the fulcrum as the footboard 5 moves downward is actively assisted, which not only improves the prevention of missing the timing of catching the tether by the tether ring 3b, but also contributes to making the base material 1 thinner.

[0025] In the third embodiment, the operating rod 14 is made of a hard material, but it may be made of an elastic material. Further, four assisting means (two pairs) are provided corresponding to the leg portions of the actuating member, but it goes without saying that one is the minimum number and the more the better. [Industrial Applicability]

[0026] The present invention can be used as a snare for capturing wild animals such as wild boars, deer, muntjacs, and civets. [Explanation of symbols]

[0027] 1. Snare Trap 2 Base material 2a Peripheral surface part 2c Upper edge part 3 Wire 3b Hoop 5 Tread board 6 Actuating member 6a Straddling piece part 6b Leg piece part 6c Support shaft 7 Holding member 9 Leaf spring 9a Base end part 9b Contact part 14 Actuating rod body 14a Base end part 14b Support shaft 14c Tip end part 14d Fulcrum shaft X Fixed member Y Leg

Claims

1. A substrate to be installed at the animal capture site; A wire having a base end attached to a fixed member near the capture site and a tip end formed with a loop that is tightened by a coil spring; A footboard is provided on the base material so as to be movable up and down, and moves down when stepped on by the animal's foot; a pair of actuating members each having a straddle portion and two leg portions, the leg portions being U-shaped with openings at the leading edge sides thereof, the leading edge portions of the leg portions being pivotally supported via a support shaft relative to the footboard so as to be able to swing up and down with the openings facing each other; In a snare trap configured such that a snare ring expanded against the biasing force of a coil spring is wound around an operating member in a downward movement position supported by a base material with a straddling piece located lower than a support shaft, and when the support shaft moves downward in conjunction with the downward movement of a footboard, the straddling piece moves upward relative to the operating member beyond the support shaft position, causing the operating member to be released from the operating member, thereby snareing an animal's leg, The binding trap is characterized in that the step plate is provided with an assisting means for assisting the upward movement of the operating member in response to the downward movement of the step plate.

2. The assisting means has a base end portion attached to the footboard and a contact portion that contacts the operating member from below, A snare trap as described in claim 1, characterized in that the abutment portion is composed of an auxiliary elastic mechanism, and the auxiliary elastic mechanism is configured to secure a biasing force by elastically deforming in response to the operating member being moved downward to a downward position, thereby assisting the upward movement of the operating member.

3. 3. The snare trap according to claim 2, wherein the spring means is a leaf spring.

4. The assisting means has a base end portion attached to the base material and a contact portion that contacts the actuating member from below, A snare trap as described in claim 1, characterized in that the abutment portion is composed of an auxiliary elastic mechanism, and the auxiliary elastic mechanism is configured to secure a biasing force by elastically deforming in response to the operating member being moved downward to a downward position, thereby assisting the upward movement of the operating member.

5. The assisting means is configured by an operating rod whose base end is attached to the footboard and whose tip end abuts against the operating member from below, A snare trap as described in claim 1, characterized in that the operating rod is configured to be freely swingable up and down around a support axis formed at an intermediate portion supported by a base material, and the tip portion moves upward in conjunction with the downward movement of the base end portion in conjunction with the downward movement of the footplate, thereby assisting the upward movement of the operating member.

6. A snare trap as described in claim 5, characterized in that the upward movement of the operating member is assisted by the operating rod in such a way that the operating member is moved upward so that the straddle portion passes the support shaft position prior to the upward movement of the operating member when the footplate moves downward in a natural state and the straddle portion passes the support shaft position.

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