JP4763096B1 - Kukuri-an - Google Patents

Abstract

The present invention provides a knurled kite that is simple and small in configuration, and that can be surely cut a beast leg even when a repellent member is weak.
A main body outer frame and a tread plate are fixed to the inner periphery of the main body outer frame so as to be movable in the vertical direction. And a main body middle frame 3 provided so that it becomes a part where the cut-off member 14 is removed when it is lowered as the tread plate 4 is stepped down. In order to prevent the tip of the heel loop 14a from hanging down due to a sudden rise of the hanger member 14 during operation of the member 17 and preventing it from forming a ring, a cut-up portion tip jumping member 2 and a rotation actuating member 20 are provided.
[Selection] Figure 6

Description

  According to the present invention, a wire-like hollow member in which a hook loop is made to pass through the other through-hole provided in one side, and one end portion of the hole member forming the through-hole to make the hook loop small. And a spring-like repellent member that applies a force to actuate the tightening member, and a reed member that tightens the reed member so as to wind the animal foot by the force of the repellent member.

  Many of the chestnuts are used mainly for capturing large beasts, and the springs used are strong, so there are many cases where the handling is seriously injured by mistake. In addition, many devices are large and inconvenient to carry. Furthermore, the destruction of the beast tract is significant at the time of installation, and there is experience and technology in installation (see Patent Document 1).

Such kurikuri is subject to many restrictions on the installation location. Also, because the installation area is large, there are many cases where beasts are noticed.
The applicant has proposed improved chestnuts (see Patent Document 2).

JP-A-5-64536 Japanese Patent No. 4603616

The problem to be solved with regard to the knurling is that if the spring (repelling member) used in the conventional form is strong, the mechanism tends to be large and the repelling member is weak It can be difficult to make sure the leg of the animal is legged.
SUMMARY OF THE INVENTION An object of the present invention is to provide a knurled kite that can be more reliably kneaded even when the structure is simple and small and the repelling member is weak.

The present invention has the following configuration in order to achieve the above object.
According to one form of the punched rod according to the present invention, a wire-like hollow member in which a hook loop is made to pass through the other through a through hole provided on one side, and one end portion of the hollow member that forms the through hole are in contact with each other. And a spring-like repellent member for applying a force to operate the tightening member, and tightening the hoop member with the force of the repellent member. In the knurled paddle that is tightened like a frame, it is fitted in the frame shape that is embedded in the excavated soil and fitted into the inner periphery of the main frame outer frame so as to be movable in the vertical direction. It is provided and a tread is fixed inside, and the upper outer periphery is provided with a hook loop against the force of the repelling member when the hook is installed. In addition to being a part that is held in a state where it is fitted, it is provided such that when the stepping plate is lowered as it is stepped on, the lowering member is prevented from being lowered by the upper end surface of the main body outer frame and is removed. In order to prevent the tip of the heel loop from hanging down due to a sudden rise of the hollow member when the repelling member is in operation and not forming a ring, the tip half of the heel loop is Corresponding to the shape of the inner frame of the main body to be fitted, it is formed in a half loop shape, and both ends are pivotally fixed to the upper part of the main body inner frame, and the flange is located in the middle of the half loop shape. A hooking portion to the tip of the loop, and when the hook loop is raised by operation of the repellent member, the hook loop is centered on the half-loop-shaped shaft stopper. Corresponds to the shape of the bobbin end jumping member that is rotated in a state of being hooked to guide and lift the tip side of the bag loop, and the shape of the inner frame of the main body to which the rear end half of the bag loop is fitted And is formed in a semi-loop shape, and both end portions thereof are pivotally fixed to the upper portion of the main frame of the main body, and are hooked to the rear end portion of the bag loop in the middle of the half-loop shape. And when the heel loop is raised by the operation of the repellent member, the half loop-shaped shaft stopping portion is rotated by a force acting on the catch portion, and both ends of the half-loop shape are rotated. Rotation operation provided so that the extension part tip-up member can be rotated on the principle of the lever by pushing down the extension part of the part abutting against the extension part at both ends of the tip part Member.

  Further, according to one form of the knurled rod according to the present invention, the length between the shaft locking portion of the rotation actuating member and the contact portion of the extension portion is equal to the shaft locking portion of the cut-up portion tip-up member. And the extension portion are provided so as to be longer than the length between the contacted portion and the extension portion.

  Further, according to one form of the chestnut according to the present invention, a main body outer frame upper protective member provided in an edge shape surrounding the upper outer periphery of the main body outer frame and projecting upward, and an upper part of the main body outer frame. And an upper covering material covering an upper surface including an end surface, an inner peripheral surface of the main body outer frame upper protective member, and an upper outer peripheral surface of the main body inner frame and including a portion where the hollow member is installed. Can be characterized.

Further, according to one embodiment of the chestnut according to the present invention, it is a mechanism that compensates for the repelling speed of the chestnut member, and when the weight of the beast is sufficiently applied to the tread of the body inner frame at a stroke, The treadle is dropped and pushed open when a sufficient load is applied across the treadle member and the treadle member so that it is difficult to ensure that the foot that falls at the same time as the treadle is placed. And a pair of pinching members that allow the stepping plate to descend at a stroke.
Further, according to one form of the knurling rod according to the present invention, the clamping member and the clamping member are pushed up to a higher position when the repelling member is in operation, so that the clamping member is guided to push up. Clamping portion guide member provided in a cylindrical shape extending from the member, passing through the hollow member, and being housed in the spring-like repellent member and being accommodated in the tubular repellent member storage member via the repellent member It can be characterized by comprising.

  According to the chestnut of the present invention, even when the structure is simple and small and the repelling member is weak, it is possible to produce a particularly advantageous effect that it is possible to more reliably tighten the animal foot.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an example of a basic form of a chestnut according to the present invention, and A in the drawing is a perspective view showing an assembled state of a repelling device rounding portion. It is sectional drawing which shows the assembly of the member accompanying the main body outer frame of the example of a basic form shown in FIG. 1, and a laying state. Place the covering member on the tread of the main body middle frame shown in FIG. 1 and put soil, and set the drilling member and repelling member to the middle of the main body outer frame to the middle. It is sectional drawing which shows the state put. Sectional drawing which shows the state which sunk the main body inner frame according to the main body outer frame, cut the covering member along the main body outer frame upper protective material part, camouflaged the upper, and set the chestnut of the basic embodiment according to the present invention It is. It is sectional drawing which showed the time of installation of each member of the chestnut of the basic form example which concerns on this invention, and the time of operation | movement, a continuous line shows the state before operation, and a dotted line shows a state at the time of operation. It is sectional drawing which shows the example of a form of the chestnut which concerns on this invention. It is a perspective view which shows the example of a form part flip-up member and the rotation actuating member used for the example of a form of FIG. It is a side view which shows the arrangement | positioning form when setting the example of a form of FIG. It is a side view which shows the rotation action state of the example of FIG.

Hereinafter, the basic form example of the chestnut according to the present invention will be described in detail with reference to FIGS.
The chestnut according to the present invention is used for acupuncture in contact with a wire-like hollow member 14 in which a hook loop 14a is formed through a through hole provided on one side and one end portion 14b forming a through hole of the hollow member 14. A tightening member 15 for tightening the loop 14a to be small and a spring-like repellent member 17 that applies force to operate the tightening member 15 are provided. It is a bowl that can be tightened like a round. The repelling member 17 of this embodiment is a helical spring.

Reference numeral 13 denotes a main body outer frame, which is provided in a frame shape buried in the excavated soil.
Reference numeral 12 denotes a main body outer frame upper protective member, which is provided in an edge shape that surrounds the upper outer periphery of the main body outer frame 13 and projects upward. The main body outer frame upper protective member 12 of this embodiment is configured as a separate part from the main body outer frame 13 and is fixed to the main body outer frame 13 by a pin-like fixing member (see FIG. 5). Of course, the main body outer frame 13 may be formed integrally. The main body outer frame 13 and the main body outer frame upper protective material portion 12 can be easily integrally formed, for example, by resin molding.

Reference numeral 3 denotes a main body middle frame, which is fitted in the inner periphery of the main body outer frame 13 in a state of being fitted together and is provided in a frame shape so as to be movable in the vertical direction. Thereby, it is guided by the inner peripheral surface of the main body outer frame 13 and can be suitably moved in the vertical direction, and can be suitably operated even when a relatively large load is applied.
A tread plate 4 is fixedly provided inside the main body middle frame 3. The main body middle frame 3 of the present embodiment is configured to fix the tread plate 4 to the main body middle frame 3 by a pin-like fixing member (not shown), but is not limited thereto, and the main body middle frame 3 and the tread plate 4 are connected to each other. Of course, the tread plate 4 may be fixed to the middle frame 3 of the main body by forming it integrally. The main body middle frame 3 and the footboard 4 can be easily integrally formed by, for example, resin molding.
The upper outer periphery of the main body middle frame 3 becomes a portion that is held in a state in which the punching member 14 is fitted so as to form the heel loop 14a against the force of the repelling member 17 when the heel is installed. At the same time, the lowering member 14 is provided such that the lowering member 14 is prevented from being lowered by the upper end surface of the main body outer frame 13 and is removed when the stepping plate 4 is lowered as it is stepped on.

  Reference numeral 1 denotes an upper covering material, in which a hollow member 14 is surrounded by an upper end surface of the main body outer frame 13, an inner peripheral surface of the main body outer frame upper protective material portion 12, and an upper outer peripheral surface of the main body middle frame 3. It is arranged so as to cover the upper part of the book chest including the region. As this upper covering material 1, a thin sheet material made of resin that does not allow water to pass through may be used.

  According to one embodiment of the chestnut according to the present invention, the chestnut member 14 is sandwiched between the body outer frame upper protective material portion 12 and the body middle frame 3 attached to the upper portion of the body outer frame 13, and the entire upper portion of the collar is covered with the upper covering material 1. By covering with (see FIG. 4), the hollow member 14 can be almost completely isolated from the outside. For this reason, even when it is cold, dirt and other foreign matters do not adhere to the wire-like hollow member 14, and the repelling operation of the hollow member 14 is not affected. For this reason, it can operate stably and does not require a stronger spring (elastic member) in order to increase the reliability of the operation.

Therefore, according to this chestnut, even when the structure is simple and small and the repelling member is weak, it is possible to more reliably tighten the animal foot.
The upper cover member 1 is held and installed by the weight of the soil on the tread board 4, but when the rake member 14 is lifted up, it moves into the main body outer frame 13 together with the tread board 4 of the main body inner frame 3. This does not affect the repelling action of the round member 14.

Further, reference numeral 2 denotes a punched-up portion tip-up member, and the tip of the punched member 14 (tip portion of the hook loop 14a) hangs down due to a sudden rise of the punched member 14 when the spring-like repellent member 17 is operated. It is arranged to prevent it from becoming.
This cut-up portion tip flip-up member 2 is formed in a semicircular shape (half-loop shape) corresponding to the shape of the main body middle frame 3 into which the tip half of the cut-off member 14 (hook loop 14a) is fitted. 2b and 2b are pivotally fixed to the upper part of the main body middle frame 3, and are arranged to be semi-circular (semi-loop) in the middle of the ring member 14 (to the tip of the heel loop 14a). Has a catching portion 2a. In this embodiment, a portion protruding in the middle portion of the cut-up portion tip-up member 2 is a catching portion 2a, and the catching portion 2a is used when the scissors are set, and the scissors loop 14a of the cut-off member 14 is set. It is in contact with the portion corresponding to the tip of the cover from above.

According to the cut-up end tip-up member 2, the cut-out member 14 (the hook loop 14a) is lifted by the operation of the repelling member 17, and at the same time the semi-circular (half-loop-shaped) end portions 2b, 2b It operates so as to guide and raise the tip end side of the tearing member 14 (saddle loop 14a) by being pivoted in a state of being hooked halfway by the tearing member 14 (saddle loop 14a) about 2b ′. That is, the tip of the cut-out portion 14a that is hooked to the cut-out member 14 via the catching portion 2a by the elastic force of the repelling member 17 that operates so as to make the hook loop 14a of the cut-out member 14 small and rise. It rotates so that the middle part of the flip-up member 2 is repelled.
According to the operation of the cut-up portion tip-up member 2, the cut-off member 14 (the hoop member 14 is stretched to hold the hook loop 14a until the hook member 14 (the hook loop 14a) is released from being caught. It is possible to guide the tip of the scissors loop 14a) so as to be appropriately lifted, and to prevent the hollow member 14 (saddle loop 14a) from being bent downwardly.

  According to this, when the beast steps down the tread plate 4 of the main body middle frame 3, the wire-like hollow member 14 starts to rise rapidly by the repelling member 17, and at that time, the tip of the hard member 14 hangs down due to inertia, In order to reduce the phenomenon that the beast's foot is not lifted off even if it is slightly lifted from the tread, and to improve the reliability of the rounding, the tip of the rounding member 14 rises as a whole. Can be moved in an appropriate form.

  The pair of sandwiching members 6 and 7 is a mechanism that compensates for the repelling speed of the punching member 14, and when the weight of the beast is sufficiently applied to the tread 4 of the main body middle frame 3, the tread 4 The footboard 4 is pushed open when a sufficient load is applied across the plate-like stepping member 5 installed at the lower part of the footboard 4 so as to make sure that the animal foot that falls and falls simultaneously with the footboard 4 is difficult. It is provided so as to allow the lowering of the at a stretch.

If the beast steps on the spider and the footboard 4 immediately descends, the beast reacts quickly and raises its foot, causing a phenomenon that the speed of catching up cannot catch up and the foot of the beast is not hampered (hereinafter referred to as air jump). In particular, the chestnut according to the present invention, which places importance on safety, minimizes the spring force of the repelling member 17, so that the repelling speed of the repelling part is slow.
Therefore, in this embodiment, even if the beast steps on the tread board 4 to compensate for it, the tread member 5 installed on the tread board 4 is not lowered when the beast is sufficiently loaded due to movement. The gap between the first pinching member 6 and the second pinching member 7 is pushed open so that the stepping plate 4 and the stepping foot of the beast fall at once. Then, the movement of the cut-off portion tip repelling member 2 and the combined operation of the tightening portion guide member 16 make the beast leg cut almost perfect.

  By adjusting the tightening force by the pair of plate-like tightening members 6, 7 attached to the main body outer frame 13 by the tightening adjustment unit composed of the bolt 8, the spring 9, the washer 10, and the nut 11, A certain attitude, you can also classify the capture beast. That is, for example, by tightening the nut 11 strongly, the tightening force by the tightening members 6 and 7 can be increased, and a larger beast can be handled.

Reference numeral 16 denotes a tightening portion guide member, and a tubular shape extending from the tightening member 15 so as to guide the push-up of the tightening member 15 in order to push up the tightening member 15 and the tightening member 15 to a higher position when the repelling member 17 is operated. And is housed in a spring-like repellent member 17 and is accommodated in a cylindrical repellent member housing member 18 via the repellent member 17.
By this mechanism, the tightening member 15 can be appropriately guided by the tightening portion guide member 16 and pushed up in an appropriate direction, and the hollow member 14 can be pushed up in an appropriate direction and to a high position.

  According to this, when the saddle tread 4 is lowered, the fastening member 15 rises together with the saddle loop portion 14a of the cutting member 14, but the weights of both the cutting member 14 and the fastening member 15 and the repelling of the cutting portion tip are repelled. It can be prevented that the leading end of the hollow member 14 does not reach a high place by being caught by the raising member 2. That is, the leg to be quickly raised can be combined with the cut-up portion tip repelling member 2 and the tightening portion guide member 16 so that the animal foot can be raised at a higher position.

In the chestnut according to the present invention, safety is the most important, and the spring-like repellent member 17 for tightening the chestnut member 14 has been weakened to the limit. We were able to ensure that the capture rate was significantly increased.
Moreover, the effect by the upper covering material 1 which covers the fence concerning this invention is large, and while protecting the hollow member 14 suitably, there exists an effect which can reduce the root cut and the smell of new soil which diverge from an excavation location. According to this, it is also effective for capturing beasts that react sensitively to odor as well as vigilance.

  As described above, the present invention focuses on the safety of the user, and the installation range is extremely narrow without destroying many beast lanes with the aim of downsizing and weight reduction. Few. Further, the upper part of the main body of the bag is covered with the upper covering material 1 so that the wire-like hollow member 14 is isolated and protected, so that it can be used even in cold regions. Furthermore, the efficiency of beast capture could be dramatically improved by combining and operating each member such as the drop-up mechanism 2 of the cut-up-end tip, the dropping mechanism of the stepping plate 4, and the guide for jumping up.

Next, with regard to the chestnut according to the present invention, its built-in form and on-site installation method and setting method will be described with reference to the drawings. FIG. 1 is a perspective view showing an exploded state of the entire cage and is indicated by a dotted line. The enclosed A is a perspective view showing the assembling of the repelling up and down portion.
The chestnut according to the present invention is made of the body outer frame 13 in which the housing is made of two cylindrical members having different diameters, and the wire-like body member 14 attached to the outer upper part of the body middle frame 3 is fixed. In this device, the lowering member 14 is detached from the main body inner frame 3 by the upper end surface of the main body outer frame 13 by lowering the inside, and the animal foot that has stepped down the main body inner frame 3 is used by the lower member 14.
The top member 1 is protected by the upper covering material 1 and the top part 2 of the bottom part is flipped up to reduce the drooping of the top part of the base member 14 when the bottom part 14 is repelled. The loop 14a) is guided to a high place by the tightening part guide member 16, and the animal foot is dropped at a stretch by using the movement of the animal's weight to form a punch that greatly improves the capture reliability.

  As shown in FIG. 2, in the method of installing the chestnut according to the present invention, first, the main body outer frame 13 to which the members 6 to 11 are attached is laid on the animal path. At this time, the main body outer frame 13 is excavated according to the footprint left by the beast. In addition, the grounding member storage portion 18 is also excavated on the ground so as to be within an appropriate angle with respect to the main body outer frame 13. Then, the main body outer frame 13 and the repellent member storage portion 18 are submerged in the excavation site, and are fixed firmly by being slightly lowered from the animal path.

  Next, as shown in FIG. 3, the main body inner frame 3 and the members 2, 4, 5 integrated together with the main body inner frame 3 are stored in the main body outer frame 13. The upper covering material 1 is placed on the stepping plate 4 of the main body middle frame 3 with the middle, put in the soil and filled with the solid footing plate 4 to fill the main body inner frame 3 so that the surrounding area is larger than the entire upper part of the bag. . At this time, the round member 14 is mounted around the middle frame 3 of the main body. The wire-shaped hollow member 14 is passed through the tightening member 15 and the tightening portion guide member 16, and the tightening portion guide member 16 is placed in the spring-shaped repelling member 17 and stored in the repelling member housing member 18 (see FIG. 1). ). It should be noted that the trailing member 14 is fixed so that the rear end thereof is not pulled out from the lower end of the repellent member housing member 18 by the trailing member fixing member 19.

  Next, as shown in FIG. 4, the main body inner frame 3 is further submerged in the main body outer frame 13 fixed to the animal path. The main body inner frame 3 is gently lowered as it is until the upper end of the main body inner frame 3 reaches the upper end of the main body inner frame 3 to match the height of the main body outer frame upper protection member 12. At the same time, the repelling member housing member 18 is also carefully attached to the main body outer frame 13. When installed, the periphery of the main body outer frame 13 and the periphery of the repellent member housing member 18 are backfilled and arranged to make the periphery slightly flat, and the upper covering material 1 is attached along the outside of the main body outer frame upper protective material 12. Cut and camouflage the area to complete the installation.

Next, based on FIGS. 6-9, the form example of the chestnut which concerns on this invention provided based on the structure of the above basic chestnut is demonstrated. In addition, about the structure similar to the structure of the basic chestnut described in FIGS. 1-5, the same code | symbol is attached | subjected and description is abbreviate | omitted.
In the present embodiment, a rotation operation member 20 is provided so that the operating force of the repelling member 17 is transmitted using the principle of the lever so that the cut-up portion tip-up member 2 is quickly and forcibly rotated. It has been.

The turning operation member 20 is formed in a half loop shape corresponding to the shape of the main body middle frame 3 into which the rear end half of the bag loop 14 a is fitted, and both end portions 20 b are turned to the upper part of the main body middle frame 3. It is provided by being freely pivoted, and has a hooking portion 20a to the rear end of the hook loop 14a in the middle of the half-loop shape, and is hooked when the hook loop 14a is raised by the repelling member 17 operation. The half-loop-shaped shaft locking portion 20b ′ is rotated by the force acting on the portion 20a, and the extension portions 20c at both ends of the half-loop shape are extended portions 2c at both ends of the cut-up portion tip-up member 2. By pushing and lowering against this, it is provided that the cut-up end tip-up member 2 is rotated by the lever principle.
According to this, it is possible to forcibly rotate the cut-up portion tip flip-up member 2 and to push up the hook loop 14a reliably and appropriately so that the tip portion does not hang down.

The length between the shaft stopping portion 20b 'of the rotation actuating member 20 and the contact portion 20c' of the extension portion is such that the shaft stop portion 2b 'of the cut-up portion tip-up member 2 and the contacted portion 2c of the extension portion. It is provided to be longer than the length between.
According to this, the turning angle of the cut-up portion tip spring-up member 2 is increased with respect to the turning angle of the turning operation member 20, and the tip side of the bag loop 14a is pushed up more quickly. Therefore, the heel loop 14a can be appropriately lifted upward, and the animal foot can be made more difficult.

  The hooking portion 2a of the cut-up portion tip flip-up member 2 is provided up and down so as to be hooked on both the upper and lower sides of the wire-shaped cut-up member 14 (the tip portion of the bag loop 14a). The lower catching portion 2a 'acts to surely push up the wire-like hollow member 14 (the tip portion of the bag loop 14a). In addition, the site | part in which the hook part 2a, 2a 'of this form example and the hook part 20a were provided is set to the state which notched in the upper edge part of the main body middle frame 3, and was fitted in the concave-shaped part provided. It is like that.

  As described above, the present invention has been described in various ways with preferred embodiments. However, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. That is.

DESCRIPTION OF SYMBOLS 1 Upper cover material 2 Cut-up part tip flip-up member 3 Main body middle frame 4 Tread board 5 Stepping member 6 1st clamping member 7 2nd clamping member 8 Bolt 9 Spring 10 Washer 11 Nut 12 Main body outer frame upper protection material part 13 Main body Outer frame 14 Drilling member 15 Tightening member 16 Tightening part guide member 17 Repelling member 18 Repelling member storage member 19 Reeling member fixing member 20 Rotating operation member

Claims (5)

A wire-like hollow member in which a hook loop is made to pass through the other through a through hole provided on one side, and a tightening member that is tightened so as to make the hook loop small in contact with one end portion of the hole forming the through hole. And a spring-like repelling member that applies a force to operate the tightening member, and in a reed that tightens the hoop member so as to wind the animal foot by the force of the repelling member,
A main body outer frame provided in a frame shape buried in the excavated soil;
It is fitted in the inner periphery of the outer frame of the main body and fitted in a frame shape so as to be movable in the vertical direction, and a tread is fixed inside. It becomes a portion that is held in a state of being fitted so as to form the heel loop against the force of the repelling member, and when the stepping plate is lowered as the stepping plate is stepped down, the cut-out member is the main body outer frame. A main body middle frame that is provided so as to be prevented from descending by the upper end surface of
The shape of the inner frame of the main body to which the front half of the hook loop is fitted in order to prevent the tip of the hook loop from hanging down due to a sudden rise of the hollow member during operation of the repellent member Is formed in a half loop shape corresponding to the upper end of the main body middle frame, and is pivotally fixed to the upper portion of the main body middle frame. And when the eaves loop is raised by operation of the repellent member, the eaves loop is rotated in a state of being hooked halfway by the eaves loop about the half loop-shaped shaft stopper. A cut-up end jumping member that guides and raises the tip side of the loop,
It is formed in a half loop shape corresponding to the shape of the main body middle frame to which the rear half of the hook loop is fitted, and both ends are pivotally fixed to the upper part of the main body middle frame. In the middle of the half-loop shape, there is a hook portion to the rear end portion of the hook loop, and when the hook loop is raised by the operation of the repelling member, the force acting on the hook portion It is rotated around a semi-loop-shaped shaft stopper, and the extension of the both ends of the half-loop is brought into contact with the extension of both ends of the cut-up end tip-up member and pushed down, thereby A drill rod comprising: a pivoting operation member provided to pivot the tip spring-up member on the principle of a lever.   The length between the shaft stop portion of the rotation actuating member and the contact portion of the extension portion is longer than the length between the shaft stop portion of the cut-up portion tip-up member and the contacted portion of the extension portion. 2. The chestnut according to claim 1, wherein the chestnut is provided to be long. A main body outer frame upper protective member provided in an edge shape surrounding the upper outer periphery of the main body outer frame and projecting upward;
An upper cover covering an upper end surface of the main body outer frame, an inner peripheral surface of the main body outer frame upper protective member, and an upper portion including a portion where the cutout member is installed surrounded by the upper outer peripheral surface of the main body middle frame The chestnut according to claim 1 or 2, further comprising a material.   A mechanism that compensates for the repelling speed of the bouncing member, and when the weight of the beast is sufficiently loaded on the tread of the middle frame of the main body, the tread is dropped at once, and A stepping member installed at the lower part of the stepping plate and a pair of pinching members that are pushed open when a sufficient load is applied across the stepping member and allow the descent of the stepping plate at a stretch so that it is difficult to be sure. A chestnut according to any one of claims 1 to 3, wherein the chestnut is provided.   In order to push up the tightening member and the tightening member to a higher position during operation of the repellent member, it is provided in a cylindrical shape extending from the tightening member so as to guide the push-up of the tightening member, 5. A tightening portion guide member which is housed in the spring-like repellent member and is accommodated in a cylindrical repellent member housing member via the repellent member. The crab bowl described in crab.

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