JP5106026B2 - Nest removal tool - Google Patents

Description

  The present invention relates to a nesting removal tool for removing a nest made of an animal such as a bird.

  A support metal such as a brace that supports an electric wire or the like is provided on the upper part of the utility pole or the steel tower, and a nest may be formed on the support metal by a bird such as a crow. Such a bird's nest is likely to cause a fault such as a ground fault or a short circuit, so it is desirable to remove it as early as possible. Conventionally, for the removal of the nest, for example, a hot stick (operating rod for live line work) such as an insulating yacht used in indirect live line work has been used.

  However, since this hot stick is used for indirect hot-line work, it is not suitable for bird nest removal work. In particular, in the case of an insulated yatco, the gripping force sufficient to remove the bird's nest is not obtained, and if the skill of the operator using this insulated yatco is low, the bird's nest is removed. Because it was not able to perform well, it took time and effort to remove it.

  This invention is made | formed in view of said situation, and makes it a subject to provide the nesting removal tool which can perform the removal operation | work of a nest easily.

  The nesting device according to the present invention is for solving the above-described problem, and includes a long insertion portion that can be inserted into a bird's nest by a predetermined insertion operation. The part is provided with a retaining means so as not to come off the nest.

  According to such a configuration, when the insertion portion is inserted into the nest, the insertion portion becomes difficult to come off from the nest by the retaining means, and the nest is lifted and moved through the insertion portion. Will be able to.

  Therefore, the nest removal tool can easily remove the nest just by inserting the insertion portion into the nest. In addition, by inserting a long insertion part into the nest and this insertion part stays inside the nest, it is possible to keep the nest so that it does not collapse. Can be removed.

  The nest removal tool according to the present invention is configured such that the retaining means is a linear body in which the insertion portion has a spiral shape, a rectangular wave shape, a triangular wave shape, a trapezoidal wave shape, or a sawtooth wave shape. It may be.

  According to such a configuration, when the insertion portion is a linear body having a spiral shape or the like, when the insertion portion is inserted into the nest, a force is applied in a direction in which the insertion portion is removed. The spiral shape or the like is caught inside the nest, so that the insertion portion is difficult to come out of the nest. Therefore, the nest can be lifted and moved through the insertion portion. As a result, the nest removal tool can easily remove the nest just by inserting the insertion part into the nest.

  Moreover, the nest removal tool which concerns on this invention may employ | adopt the projection part formed as a protrusion from the insertion part as the said retaining means.

  According to such a configuration, when the insertion portion is inserted into the nest, the projection is caught on the nest, and the insertion portion is difficult to come off from the nest. As a result, the nesting tool can easily lift and remove the nest just by inserting the insertion part into the nest.

  Further, the nesting tool according to the present invention is configured such that one end of the insertion portion is an insertion end inserted into the nest and the insertion end is inserted into the nest at the other end of the insertion portion. It is possible to adopt a configuration in which an operation unit capable of operating the plug-in unit is provided.

  According to such a configuration, by operating this operation portion, the insertion portion can be easily inserted into the nest, and thereby the nest removal operation can be easily performed.

  Further, the nesting tool according to the present invention may be configured in an annular shape so that when the insertion part is inserted into the nest, the nesting tool is hooked and operated by a predetermined hook.

  According to such a configuration, the nest can be easily lifted by hooking a hook or the like on the annular operation portion, and thereby the nest removal operation can be easily performed. become.

  Also, in the nesting tool according to the present invention, one end of the insertion part is an insertion end inserted into the nest, and the other end of the insertion part is attached to a common work bar or a fixed operation bar. Thus, it is possible to employ a configuration in which an operation unit to be operated is provided.

  According to such a configuration, by providing an operation portion that can be attached to the common work rod or the fixed operation rod at the end of the insertion portion, the nesting device is attached to the common operation rod or the fixed operation rod, and this common operation is performed. The insertion part of the nesting device can be inserted into the nest by the stick or the fixed operation stick. The nest can be lifted and moved while the insertion portion is inserted into the nest, and the nest can be easily removed. Such a configuration is extremely useful when indirect hot-line work is unavoidable when removing the nest.

  According to the present invention, the nest removal work can be easily performed.

  Hereinafter, the best mode for carrying out the nest removal tool according to the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of a nesting removal tool (nesting removal spike). The nest removal tool 1 according to the present embodiment is for removing the nest 2 made of a support metal such as a brace that supports an electric wire, for example, at the upper part or midway of a utility pole or steel tower.

  The nest removal tool 1 according to the present embodiment is formed into a desired shape by bending a linear body or bar made of metal and having a circular cross section. The entire nest removal tool 1 is covered with an insulating member (insulating film) so that it does not inadvertently come into contact with the charged part of the utility pole or the steel tower to cause a ground fault, a short circuit or the like.

  As shown in FIG. 1, the nest removal tool 1 includes an insertion portion 3 to be inserted into the nest 2 and an operation portion 4 a for performing an insertion operation of the insertion portion 3. The insertion portion 3 has a long shape, and one end portion thereof is an insertion end portion 5 to be inserted into the nest 2. The operation unit 4 a is provided at the other end of the plug-in unit 3.

  The insertion part 3 of the nesting removal tool 1 is formed by bending a metal linear body (or bar) into a spiral shape. Further, a plurality of protrusions 7a, 7a,... Protruding from the insertion portion 3 are provided at predetermined intervals in the middle portion of the insertion portion 3.

  The insertion portion 3 is configured in a spiral shape, so that when the insertion portion 3 is inserted into the nest 2, the insertion portion 3 is caught inside the nest 2, and is difficult to come off from the nest 2. That is, the spiral shape of the insertion portion 3 functions as a retaining means for preventing the insertion portion 3 from coming off the nest 2 (hereinafter sometimes referred to as “first retaining means”).

  In addition, when the insertion portion 3 is inserted into the nest 2, a plurality of protrusions 7a, 7a,... Provided in the middle of the insertion portion 3 are caught inside the nest 2, and are difficult to come off from the nest 2. ing. In other words, the protrusions 7a, 7a... Of the insertion portion 3 function as a retaining means for preventing the insertion portion 3 from coming off the nest 2 (hereinafter sometimes referred to as “second retaining means”). To do.

  As shown in FIG. 1, the protrusion 7a has a quadrangular shape in side view. Further, as shown in FIG. 2, the protrusion 7a is formed to protrude outward in the radial direction of the insertion portion 3 having a circular cross section. The protrusion 7a is formed with a predetermined thickness, and is configured to be deformable (flexible) in the thickness direction. The protrusion 7a is formed of an insulating material (for example, an insulating tape such as a vinyl tape).

  The operation portion 4a is formed integrally with the insertion portion 3, and is formed in an annular shape by bending the end portion of the insertion portion 3 (a so-called “eye”).

  Hereinafter, the usage method (nesting removal method) of this nesting removal tool 1 will be described.

  In order to remove the nest 2, first, the insertion part 3 of the nesting tool 1 is inserted into the nest 2. In the present embodiment, the insertion portion 3 is inserted from the side of the nest 2 while rotating around the central axis of the spiral via the operation portion 4a. At this time, according to the size of the nest 2, one or a plurality of the nest removal tools 1 are inserted into the nest 2.

  In addition, when inserting the nest removal tool 1 into the nest 2, it may be directly inserted by the operator's hand, or a common operation stick or fixed operation stick equipped with a bowl-shaped tip tool, an insulation type, a quick type insulation type, etc. You may insert by operating the operation part 4a using a hot stick.

  When the insertion portion 3 is inserted into the nest 2, the insertion portion 3 is unlikely to be detached from the nest 2 by the first retaining means and the second retaining means. And since this insertion part 3 stays in the inside of this nest 2, the shape will be held so that this nest 2 may not collapse.

  After inserting the insertion part 3 into the nest 2, a hook or other hook is hung on the operation part 4 a, and the hook 2 is lifted by a lifting device such as a winch so that the nest 2 can be lifted and moved. become. In addition, a wire member such as a wire, a chain, or a string (rope) provided with a hook or the like at its distal end (hereinafter referred to as “lifting member”) is prepared, and the hook is hung on the operation portion 4a. The lifting member may be pulled up by a crane of an aerial work vehicle.

  When a plurality of nest removal tools 1 are inserted into the nest 2, a wire such as a wire, chain, string (rope) is passed through the annular operation portion 4a of each nest removal tool 1, and this wire These ends may be connected to each other to form an annular shape, and the wire rod may be hung by hanging a hook of a lifting member. By doing in this way, the number of lifting members can be reduced rather than the number of the nest removal tools 1 inserted in the nest 2, and the lifting operation of the nest 2 can be performed efficiently.

  Moreover, after inserting the insertion part 3 into the nest 2, the nest 2 may be removed by grasping and lifting the operation part 4a with an insulating jacket or a quick type insulating jacket. The nest 2 may be removed by attaching the tip tool to the common operation rod and lifting the tip tool on the operation portion 4a.

  Thus, when removing the nest 2 using a hot stick, a plurality of nesting removal tools 1 are inserted into the nest 2 in a state of approaching each other, and the operation portions 4a of these nesting removal tools 1 are held together or The nest 2 can be lifted and removed.

  The nest removal tool 1 is collected when the nest 2 is dismantled after removing the nest 2 from the nesting place, and is used for removing other nests 2.

  According to the nest removal tool 1 having the above-described configuration, the insertion portion 3 is provided with the retaining means (first retaining means, second retaining means), so that the insertion portion 3 is inserted into the nest 2. The nest 2 is difficult to come off and is fixed inside the nest 2 and can be easily removed by lifting the nest 2 through the nesting device 1.

  Moreover, since the insertion part 3 is inserted into the nest 2, the nest 2 is shaped so as not to collapse, so that the fragments of the nest 2 are not scattered during the removal operation, and the removal is ensured. it can. Accordingly, it is possible to reduce the time and effort required for curing around the nest 2 before removal.

  Furthermore, since this nesting removal tool 1 can be inserted into the nest 2 at various angles according to the position of the worker and the position of the nest 2, it does not impose an unreasonable working posture on the worker and can be used in various environments. Can be removed efficiently. Moreover, since the operation of the nesting removal tool 1 is easy, the nest 2 can be easily removed without requiring skill for work.

  Moreover, since the operation part 4a is provided in the nest removal tool 1, the insertion part 3 can be easily inserted into the nest 2 by operating the operation part 4a. Thereby, the workability | operativity at the time of removing the nest 2 improves. Moreover, since the operation portion 4a is formed in an annular shape, it is easy to hang a hook or other hook, and the structure is easy to operate even when the nest 2 is lifted and moved.

  FIG. 4 shows a second embodiment of the nesting device 1. In 1st Embodiment mentioned above, although the cyclic | annular operation part 4a was provided in the one end part of the insertion part 3, the operation part 4b of this embodiment is used as a common operation rod at the one end part side of the insertion part 3. It is configured to be mounted and operable, and this is different from the first embodiment.

  Specifically, a tool attachment portion 13 for attaching various tip tools is provided at the end portion of the common operation rod, and the operation portion 4b of the nesting removal tool 1 can be attached to the tool attachment portion 13. It has become a structure. More specifically, the tool mounting portion 13 of the common operation rod is provided with a pair of locking pins 14 and 14 formed to protrude in a direction perpendicular to the longitudinal direction of the common operation rod ( One end of the pair of locking pins 14 and 14 is shown in FIG. 4), and the operation portion 4 b is configured in an open cylindrical shape at one end portion, and the locking pins 14 and 14 are engaged with each other. It has a pair of guide grooves 15 and 15 (one of the pair of guide grooves 15 and 15 is shown in FIG. 4).

  A locking recess 16 for locking the locking pin 14 is formed at the end of the guide groove 15, and the structure for fixing the operating portion 4 b to the common operating rod is that the locking pin 14 is formed in the guide groove 15. It has a so-called twist lock structure in which the locking pin 14 is engaged and fixed in the locking recess 16 by twisting (twisting) the common operation rod in a predetermined direction.

  In this 2nd Embodiment, the insertion part 3 can be inserted in the nest 2 by operation | movement of this common operation rod by mounting | wearing the common operation rod with the nesting removal tool 1 previously. Moreover, after inserting the insertion portion 3 into the nest 2, the nest 2 can be lifted and removed easily by the common operation rod.

  When the nest removal tool 1 according to this embodiment is used to remove the nest 2, two or more workers work by operating the common work rods each equipped with the nest removal tool 1. It is desirable to do.

  Other configurations of the second embodiment are the same as those of the first embodiment, and portions common to the first embodiment are denoted by common reference numerals and description thereof is omitted. The second embodiment also has substantially the same operational effects as the first embodiment.

  FIG. 5 shows a third embodiment of the nesting device 1. In the above-described first embodiment, the example in which the first retaining means and the second retaining means are provided in the insertion portion 3 has been described. However, in the third embodiment, only the first retaining means is the difference. It is provided in the middle part of the insertion part 3. Other points are the same as in the first embodiment. In the third embodiment, the same effects as those of the first embodiment are achieved.

  FIG. 6 shows a fourth embodiment of the nesting device 1. In 1st Embodiment mentioned above, although the insertion part 3 was comprised by forming a linear body helically, in this 4th Embodiment, the insertion part 3 is comprised by the linear linear body. is doing. A plurality of protrusions (corresponding to the second retaining means of the first embodiment) 7b, 7b,... Are provided in the middle of the insertion portion 3 at a predetermined interval.

  The protrusions 7b, 7b,... Have a triangular shape in side view, and the protrusion height gradually decreases toward the insertion end 5 of the insertion part 3. Thus, the protrusions 7b, 7b,... Do not become excessive resistance when the insertion portion 3 is inserted into the nest 2, and after the insertion portion 3 is inserted into the nest 2, the removal direction (difference In this case, the insertion portion 3 is effectively prevented from coming off.

  In the first embodiment described above, when the insertion portion 3 is inserted into the nest 2, the insertion portion 3 is rotated and inserted. However, the nesting tool 1 according to the fourth embodiment is In addition to being inserted into the nest 2 while rotating the insertion portion 3, it is possible to insert the insertion portion 3 linearly without rotating the insertion portion 3.

  Other configurations of the fourth embodiment are the same as those of the first embodiment, and portions common to the first embodiment in the fourth embodiment are denoted by common reference numerals and description thereof is omitted. In the fourth embodiment, the same operational effects as in the first embodiment are obtained.

  FIG. 7 shows a fifth embodiment of the nesting device 1. The nesting removal tool 1 according to the present embodiment is provided with a retaining means at the insertion end 5 of the linear insertion portion 3, and this point is different from the fourth embodiment described above. The retaining means includes a bracket 20 provided in the insertion part 3 and a retaining part 21 rotatably supported by the bracket 20. In the present embodiment, the insertion portion 3 is provided with two brackets 20 and 20 and two retaining portions 21 and 21.

  The retaining portion 21 is composed of a long rod member (or plate member), one end of which is rotatably supported by a support shaft 22 provided on the bracket 20, and the other end is When the insertion part 3 is inserted into the nest 2, an abutting part 23 that abuts on the insertion part 3 is provided.

  The retaining portion 21 is rotatable around the support shaft 22 so that it does not become excessive resistance when the insertion portion 3 is inserted into the nest 2 (reference numeral A in FIG. 7). The posture can be changed to a second posture (the posture indicated by B in FIG. 7) that is hooked inside the nest 2 when a force is applied in a direction in which the insertion portion 3 is removed. It has become.

  When the retaining portion 21 is in the first posture A, the abutting portion 23 abuts on the insertion portion 3, and the retaining portion 21 is substantially parallel to the longitudinal direction of the insertion portion 3. . Thereby, when the insertion part 3 is inserted in the nest 2, the retaining part 21 does not become an excessive resistance.

  On the other hand, when a force in the extraction direction is applied to the insertion portion 3 inserted into the nest 2, the retaining portion 21 changes the posture from the first posture A to the second posture B. At this time, the retaining portion 21 is inclined at a predetermined inclination angle with respect to the insertion portion 3, whereby the retaining portion 21 is caught inside the nest 2, and the insertion portion 3 is separated from the nest 2. It becomes difficult to come off.

  In this embodiment, similarly to the first to fourth embodiments described above, it is possible to insert a plurality of nest removal tools 1 into the nest 2 and lift and remove the nest 2 through these. If the nest 2 is relatively small, one nest removal tool 1 is inserted into the center of the nest 2 from above and penetrated downward, and the retaining portion 21 is removed from the first posture A. After changing to the second posture B, the nest 2 may be removed by pulling up the nesting removal tool 1 upward.

  In the middle part of the insertion part 3, the protrusion part 7b shown in 4th Embodiment may be provided. As long as a retaining means is provided on the insertion end 5 side of the insertion portion 3 as in the present embodiment, the projection 7b may not be provided, but the projection 7b is provided. It becomes easier to exhibit the effect of preventing the insertion part 3 from coming off.

  The other structure of 5th Embodiment is the same as that of 4th Embodiment, and there exists an effect similar to 4th Embodiment also in 5th Embodiment.

  FIG. 8 shows a sixth embodiment of the nesting device 1. In the sixth embodiment, a retaining means is provided at the distal end portion of the insertion portion 3, and this point is different from the fourth embodiment. A protrusion 7c that is inclined at a predetermined angle with respect to the insertion portion 3 is formed on the insertion end portion 5 of the insertion portion 3. The protrusion 7c is inserted into the nest 2 by the insertion portion 3. It serves as a retaining means to prevent it from coming off when it is removed.

  The protrusion 7c is formed so as to incline inward in the radial direction of the insertion portion 3 as it goes from the operation portion 4a toward the insertion end portion 5. Further, it is desirable that the inclination angle of the protrusion 7c with respect to the insertion portion 3 is an acute angle. By doing in this way, this protrusion part 7c does not become excessive resistance when inserting the insertion part 3 in the nest 2, and after the insertion part 3 is inserted in the nest 2, this nest 2 2 is caught inside and can be surely prevented from coming off.

  In addition to the projection 7c, the projection 7a as the second retaining means shown in the first embodiment and the projection 7b shown in the fourth embodiment may be provided in the middle of the insertion portion 3. In addition, if the projection part 7c which concerns on this embodiment is provided, the projection parts 7a and 7b may not be provided in the insertion part 3, but if this projection part 7a, 7b is provided, It becomes easier to exert a retaining effect.

  Also in the sixth embodiment, as described in the fifth embodiment, the single nesting device 1 is inserted into the center of the nest 2 from above and penetrated, and the bottom of the nest 2 is provided with a retaining means. A certain protruding portion 7c may be hooked and lifted upward as it is to be removed.

  The other configurations of the sixth embodiment are substantially the same as those of the fourth embodiment, and the sixth embodiment has the same effects as the fourth embodiment.

  FIG. 9 shows a seventh embodiment of the nesting device 1. The nest removal tool 1 according to the present embodiment includes a core portion 31 formed of a linear wire body and a wing formed so that the insertion portion 3 is spirally wound around the core portion 31. This point is different from the first embodiment described above.

  Similar to the spiral shape of the insertion portion 3 of the first embodiment, the wing plate portion 32 of the insertion portion 3 is inserted into the nest 2 when the insertion portion 3 is inserted into the nest 2. It functions as a retaining means for preventing it from coming off.

  In the nest removal tool 1, the insertion portion 3 is inserted into the nest 2 by rotating the operation portion 4 a so as to rotate around the axis of the core portion 31 as in the first embodiment. When the insertion portion is inserted into the nest 2, the slat portion 32 is caught inside the nest 2, and the insertion portion 3 is difficult to come off from the nest 2.

  Other configurations of the seventh embodiment are the same as those of the first embodiment, and portions common to the first embodiment in the seventh embodiment are denoted by common reference numerals and description thereof is omitted. In the seventh embodiment, the same function and effect as in the first embodiment are achieved.

  FIG. 10 shows an eighth embodiment of the nesting tool 1. In the nesting tool 1 according to the present embodiment, the insertion portion 3 and the operation portion 4a are formed by bending a metal linear body having a circular cross section, as in the first embodiment. In this embodiment, by further bending the linear body, a plurality of protrusions 7d, 7d,... Are formed in the insertion portion 3, which serves as a sawtooth wave retaining means. Different from the first embodiment.

  In addition, the insertion portion 3 includes the protrusions 7d, 7d,... And a plurality of linear portions (hereinafter referred to as “linear portions”) 41, 41,. And the straight portions 41, 41,... Are alternately formed in the longitudinal direction of the insertion portion 3.

  The protrusions 7d, 7d,... Are bent at a substantially right angle with respect to the first side part 42 bent at a predetermined inclination angle with respect to the straight parts 41, 41,. And a second side portion 43. The first side portion 42 gradually has straight circular portions 41, 41, 41 having a circular cross section as it goes from the second side portion 43 toward the insertion end portion so as not to become excessive resistance when the insertion portion 3 is inserted into the nest 2. Are formed so as to incline radially inward.

  Since the second side portion 43 is bent at a substantially right angle with respect to the straight portions 41, 41, ..., when a force in the extraction direction acts on the insertion portion 3, it becomes caught inside the nest 2, Thereby, the insertion part 3 is difficult to come off from the nest 2.

  Other configurations of the eighth embodiment are substantially the same as those of the first embodiment, and portions common to the first embodiment in the eighth embodiment are denoted by common reference numerals and description thereof is omitted. In the eighth embodiment, the same operational effects as in the first embodiment are obtained.

  FIG. 11 shows a ninth embodiment of the nesting tool 1. In the second embodiment described above, the nesting tool 1 that can be attached to the common operation rod by the so-called twist lock structure is shown. However, the nesting tool 1 according to the present embodiment has an angle using a so-called Kikuza structure. It is configured to be adjustable and attachable to the fixed operating rod, and this is different from the second embodiment.

  In this embodiment, the tool attachment part 45 which can attach the nesting removal tool 1 to the front-end | tip part of a fixed operation stick | rod is provided, and the nesting removal tool 1 is mounted | worn with this tool attachment part 45, and the operation part operated 4c is provided at the end of the insertion part 3.

  As shown in FIG. 11, the tool mounting portion 45 of the fixed operating rod has a plurality of locking projections 46 arranged in an annular shape with a predetermined interval. A cylindrical protrusion 47 that protrudes substantially perpendicular to the longitudinal direction of the fixed operating rod is provided at a substantially central position of the ring of the locking protrusion 46. A male screw portion is formed on the outer peripheral surface of the cylindrical protrusion 47, and a wing nut 48 is fitted into the male screw portion.

  The operation portion 4 c of the nesting removal tool 1 has a locking projection 49 that can be fitted between the plurality of locking projections 46 of the tool mounting portion 45. A plurality of locking projections 49 are annularly arranged on the operation portion 4c with a predetermined interval. In addition, a recess 50 that can be engaged with the columnar protrusion 47 of the tool mounting portion 45 is formed in the operation portion 4 c along the longitudinal direction of the insertion portion 3 from the protruding end.

  In order to attach the nesting tool 1 to the fixed operation rod, first, the locking projection 49 of the operation portion 4c of the nesting tool 1 and the locking projection 46 of the tool mounting portion 45 of the fixed operation rod are opposed to each other. Thus, the concave portion 50 of the operation portion 4 c is engaged with the cylindrical protrusion 47 of the tool attachment portion 45 from the side. Next, each of the locking projections 49 of the operation portion 4c is fitted between the locking projections 46 of the tool mounting portion 45, and in this state, the wing nut 48 is tightened so that the operation portion 4c is moved to the tool mounting portion 45. Secure to. As described above, the operation portion 4c is attached to the tool attachment portion 45 of the fixed operation rod.

  In this nesting removal tool 1, the wing nut 50 is loosened, and the nesting removal tool 1 is rotated around the cylindrical projection 47 of the tool mounting portion 45, and the locking projection 49 of the operation portion 4c is located at another position. Are fitted between the locking projections 46 of the tool mounting portion 45, and the wing nut 50 is fastened and fixed, whereby the angle between the insertion portion 3 and the fixed operating rod can be adjusted. Yes.

  That is, an angle adjustment for adjusting the angle of the insertion portion 3 with respect to a hot stick such as a fixed operation rod by adopting a connecting and fixing structure using a chrysanthemum between the nesting device 1 and the fixed operation rod. It can be said that means are provided.

  According to the nest removal tool 1 according to the present embodiment, since the angle of the insertion portion 3 with respect to the fixed operation rod can be adjusted, depending on the position of the operator, the size of the nest 2, and the nesting position, By adjusting the angle, the insertion portion 3 can be inserted into the nest 2 in a posture suitable for the work environment, and the removal work can be performed more easily.

  In this embodiment, when the angle formed by the insertion portion 3 (longitudinal direction) and the fixed operation rod (longitudinal direction) is about 180 degrees, that is, the insertion portion 3 and the fixed operation rod are connected in a straight line. If it is, the nesting removal tool 1 of the type in which the insertion portion 3 has a spiral shape as shown in the first to third embodiments is attached to the tool attachment portion 45 to perform the fixing operation. The insertion portion 3 can be inserted into the nest 2 while rotating the rod.

  Further, when the angle formed by the insertion portion 3 and the fixed operation rod is 180 degrees, the nesting removal in which the insertion portion 3 is formed in a straight line as shown in the fourth to sixth embodiments is performed. The tool 1 can be mounted on the tool mounting portion 45 and the insertion portion 3 can be linearly inserted into the nest 2.

  In this embodiment, when the angle formed by the insertion portion 3 and the fixed operation rod is other than 180 degrees and the insertion portion 3 is inclined with respect to the fixed operation rod, the fourth embodiment to the fourth embodiment As shown in the sixth embodiment or the like, it is desirable to use a plug portion 3 formed in a straight line and insert the plug portion 3 linearly into the nest 2.

  Other configurations of the present embodiment are the same as those of the other embodiments described above, and the same effects as those of the other embodiments are achieved in this embodiment.

  In addition, this invention is not restricted to said embodiment, A various change and deformation | transformation are possible.

  For example, in the above embodiment, the operation unit 4a is hooked with a hot stick and operated to insert the insertion portion 3 into the nest 2, and the operation unit 4a is lifted with a hot stick and the nest 2 is removed. Although an example was shown, it is not restricted to this, You may make it remove the nest 2 by inserting the insertion part 3 in the nest 2 directly by an operator's hand, and lifting this nesting removal tool 1. FIG. When the insertion part 3 can be directly inserted into the nest 2 by the operator's hand, the operation parts 4a and 4b may not be provided in the nesting removal tool 1.

  In the above embodiment, the nesting removal tool 1 formed by bending a metallic linear body is exemplified. However, the nesting removal tool 1 is not limited to this, and is made of resin, wooden, and other various types. These materials can be used.

  In the above-described embodiment, the example in which the operation unit 4a is annular has been described. However, the operation unit 4a is not limited to this, and may be any shape that can be operated by a hot stick or a shape that can be hooked by a hook. It is possible to adopt various shapes such as a bowl shape, a T shape, and the like.

  In addition, a permanent magnet is provided in the operation portion 4a, and a permanent magnet is also provided at the end of the lifting member, and the operation portion 4a is magnetized with the magnet at the end of the lifting member, thereby lifting the winch or the like. It is also possible to lift the nest 2 with.

  Further, a fixing means such as a male and female hook-and-loop fastener or adhesive tape is provided between the operation unit 4a and the tip of the hot stick for operating the operation unit 4a, and the tip of the hot stick is fixed to the operation unit 4a for operation. You may make it do.

  In the above embodiment, the nesting removal tool 1 is exemplified by a metal linear body having a circular cross section. However, the nesting removal tool 1 is not limited to this, and is not limited to this, and is tubular (hollow), elliptical, triangular, rectangular, etc. The nest removal tool 1 may be formed by using linear bodies having various cross-sectional shapes such as polygonal shapes, irregular shapes, and the like.

  In the fifth embodiment, the example in which the two retaining portions 21 and 21 are provided in the insertion portion 3 has been shown, but the number of the retaining portions 21 is one or more than three. Also good. Moreover, in said 6th Embodiment, although the one projection part 7b was provided in the insertion end part 5 side of the insertion part 3, 2 was shown in the insertion end part 5 side of the insertion part 3. FIG. The plurality of protrusions 7b, 7b,... May be formed.

  In the embodiment described above, an example in which the nest removal tool 1 is directly inserted into the nest 2 and removed has been described. However, the present invention is not limited thereto, and for example, the nest 2 is previously covered with a net-like or sheet-like covering member, The insertion portion 3 and the covering member may be fixed to the nest 2 by inserting the insertion portion 3 from above and inserting it into the nest 2. As a result, the covering member is integrally fixed to the nest 2 in a state of covering the nest 2, thereby making the nest 2 more difficult to collapse, preventing scattering of fragments of the nest 2, and quick and reliable removal. Is possible.

  In the first embodiment, the example in which the protrusions 7a, 7a,... That are the second retaining means are made of an insulating material has been described. However, the insertion portion 3 and the operation portion 4a may be covered with an insulating material. For example, the protrusions 7a, 7a,... Need not be made of an insulating material. Further, the protrusions 7a, 7a,... May be formed integrally with an insulating material that covers the insertion portion 3 and the like.

  Moreover, when the insertion part 3 is formed in a spiral shape, when the insertion part 3 is inserted into the nest 2, the insertion end part 5 protrudes through the nest 2 and protrudes. A hook such as a hook may be hung on the spiral portion exposed from the nest 2 on the insertion end portion 5 side, and the nest 2 may be pulled up.

  In the above embodiment, an example in which the operation unit 4a is formed in an annular shape has been shown. However, the shape of the ring of the operation unit 4a is not limited to a circular shape, but may be a polygonal shape, an elliptical shape, an irregular shape, or the like. Various shapes can be employed.

  In the ninth embodiment, an example in which the angle between the insertion portion 3 and the fixed operating rod can be adjusted by a so-called Kikuza structure is shown. However, the present invention is not limited to this. Dynamic connecting means may be provided, which may be used as an angle adjusting means for the insertion portion 3 so that the angle formed by the insertion portion 3 and a hot stick such as a fixed operating rod can be adjusted.

  Moreover, you may employ | adopt the structure which can be inserted in the nest 2 by providing the insertion part 3 in the rotating shaft of rotational drive means, such as an electric motor, rotating this insertion part 3 automatically. Thereby, the insertion part 3 can be easily and quickly inserted into the nest 2, and the efficiency of the removal work can be improved.

  In said 7th Embodiment, although the insertion part 3 demonstrated the example comprised by the linear core part 31 and the helical blade part 32, it was made to provide an unevenness | corrugation in this blade part 23. Also good. Thereby, when the insertion part 3 is inserted in the nest 2, the unevenness | corrugation of the slat part 23 becomes a hook in the inside of the nest 2, so that the effect of retaining the insertion part 3 can be exhibited more greatly. Become.

  In the eighth embodiment, the example in which the insertion portion 3 has a sawtooth wave shape has been described. However, the insertion portion 3 may have a rectangular wave shape, a triangular wave shape, or a trapezoidal wave shape. In this case, the plurality of protrusions 7d may not be arranged on the same plane as in the eighth embodiment, but may be formed at different angles around the axis of the insertion portion 8. .

It is a side view which shows 1st Embodiment of a nesting removal tool. It is XX arrow directional cross-sectional view of FIG. It is a figure explaining the removal method of the nest using the nesting removal tool. It is a side view which shows 2nd Embodiment of a nesting removal tool. It is a side view which shows 3rd Embodiment of a nesting removal tool. It is a side view which shows 4th Embodiment of a nesting removal tool. It is a principal part side view which shows 5th Embodiment of a nesting removal tool. It is a principal part side view which shows 6th Embodiment of a nesting removal tool. It is a side view which shows 7th Embodiment of a nesting removal tool. It is a side view which shows 8th Embodiment of a nesting removal tool. It is a side view which shows 9th Embodiment of a nesting removal tool.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Nest removal tool, 2 ... Nest, 3 ... Insertion part, 4a ... Operation part, 4b ... Operation part, 4c ... Operation part, 5 ... Insertion end part, 7a ... Protrusion part (detachment prevention means), 7b ... Projection part (retaining means), 7c ... Projection part (retaining means), 7d ... Projection part (retaining means), 13 ... Tool mounting part, 14 ... Locking pin, 15 ... Guide groove, 16 ... Locking recess , 20 ... bracket, 21 ... retaining part (preventing means), 22 ... support shaft, 23 ... abutting part, 31 ... core part, 32 ... slat part, 41 ... straight part, 42 ... first side part, 43 ... 2nd side, A ... 1st attitude | position, B ... 2nd attitude | position

Claims (6)

  It has a long insertion part that can be inserted into a bird's nest by a predetermined insertion operation, and this insertion part is provided with a retaining means so as not to come off the nest. Nest removal tool as a feature.   The nesting removal tool according to claim 1, wherein the retaining means is configured such that the insertion portion is a linear body having a spiral shape, a rectangular wave shape, a triangular wave shape, a trapezoidal wave shape, or a sawtooth wave shape. .   The nest removal tool according to claim 1 or 2, wherein the retaining means is a protrusion formed to protrude from the insertion portion.   One end of the insertion portion is an insertion end that is inserted into the nest, and an operation portion that can operate the insertion portion is provided at the other end to insert the insertion end into the nest. The nesting removal tool according to any one of claims 1 to 3.   The nesting device according to claim 4, wherein the operation unit is configured in an annular shape so that when the insertion unit is inserted into the nest, the operation unit is hooked and operated by a predetermined hook.   The insertion portion is an insertion end portion into which one end portion is inserted into the nest, and an operation portion that is attached to and operated by a common work rod or a fixed operation rod is provided at the other end portion. 4. The nesting tool according to any one of items 1 to 3.

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