JP5903124B2 - Indirect sheet shears - Google Patents

Description

  The present invention relates to indirect sheet shears.

  Indirect sheet shears, for example, when an operator performs hot-wire construction of a high-voltage distribution line, for example, by using an indirect hot-wire tool such as an insulating YATCO so that the insulation sheet placed on the charging section of the electric wire does not come off during the construction. It is gripped and used to temporarily fix the insulating sheet to the electric wire.

  In Patent Document 1, a pair of sandwiching members that sandwich a sheet, a connecting portion that couples the pair of sandwiching members so as to be opened and closed, a biasing member that biases the pair of sandwiching members, and a pair of sandwiching members in a closed state And a pair of gripping members that can be switched to an open state, and a clip for indirect hot-wire work in which the pair of gripping members are formed in a substantially circular plate shape is described. Patent Document 1 describes that since a pair of gripping members are formed in a substantially circular plate shape, an indirect live tool can be inserted into the gripping member from any direction and stably gripped. Yes.

JP 2011-89629 A

  The clip for indirect hot wire construction described in Patent Document 1 is formed in a state where a pair of gripping portions fix a plate-like portion and an outer frame portion. For this reason, it is difficult for the operator to adjust the mounting direction while holding the indirect hot line clip with the indirect hot line tool when performing the hot line work. In order to improve, further improvement is needed.

  This invention is made | formed in view of the above, Comprising: It aims at providing the indirect sheet | seat shears which can improve working efficiency.

  In order to solve the above-described problems and achieve the object, the present invention is an indirect sheet scissor, which is a first clamping part extending in one direction, a first gripping part extending in one direction, and the above-mentioned A first member having a first connecting portion for connecting the first clamping portion to the first gripping portion, a second clamping portion extending in one direction, and a second gripping portion extending in one direction And a second member having a second connecting portion for connecting the second holding portion to the second gripping portion while being inclined to the opposite side of the first connecting portion, the first connecting portion and the second The connecting portion is connected in a rotatable state while being biased in a direction in which the first holding portion and the second holding portion are in contact with each other, and the first holding portion, the second holding portion, and the first holding portion are connected. A connecting portion serving as a base point for opening and closing the grip portion and the second grip portion, wherein the first grip portion and the second grip portion are the first connection And a fixed portion fixed to each of the second connection portions, and a surface of the one fixed portion opposite to the surface facing the other fixed portion, and the fixed portion is When the rotating part rotatable around an axis orthogonal to the opposite surface, the fixed part and the rotating part face each other and no external force acts, the position of the rotating part in the rotation direction is set to a predetermined value. And a position restriction mechanism that supports the angle range.

  Moreover, it is preferable that the said position control mechanism is a ratchet mechanism formed in the surface where the said fixing | fixed part and the said rotation part oppose.

  Further, it is preferable that a through hole is formed in the fixed portion, and a rotating shaft of the rotating portion is inserted into the through hole.

  Moreover, it is preferable that the said position control mechanism is formed in the surface where the said through-hole of the said fixing | fixed part and the said rotating shaft of the said rotation part oppose.

  Moreover, it is preferable that the said fixing | fixed part has an outer frame surrounding the outer periphery of the said rotation part.

  Moreover, it is preferable that the said position control mechanism is formed in the surface where the said outer frame of the said fixing | fixed part and the said rotation part oppose.

  Moreover, it is preferable that the rotation part has a protrusion formed on the opposite surface.

  The indirect sheet shears according to the present invention can improve work efficiency.

FIG. 1 is a top view of an indirect sheet shear according to the present embodiment. FIG. 2 is a side view of the indirect sheet shear according to the present embodiment. FIG. 3 is an enlarged view showing a cross section of the grip portion according to the present embodiment. FIG. 4A is an explanatory diagram illustrating a rotation state of the rotation unit according to the present embodiment. FIG. 4B is an explanatory diagram illustrating a rotation state of the rotation unit according to the present embodiment. FIG. 4C is an explanatory diagram illustrating a rotation state of the rotation unit according to the present embodiment. FIG. 5 is an explanatory diagram showing a gripping relationship between the gripping portion and the insulating jacket according to the present embodiment. FIG. 6 is an explanatory view showing a state in which the insulating jacket is gripped by the indirect sheet shears according to the present embodiment. FIG. 7 is an explanatory view showing a state in which the indirect sheet shears according to the present embodiment are rotated. FIG. 8A is an explanatory diagram illustrating a rotation state of a rotation unit according to another embodiment. FIG. 8B is an explanatory diagram illustrating a rotation state of a rotation unit according to another embodiment. FIG. 8C is an explanatory diagram illustrating a rotation state of a rotation unit according to another embodiment. FIG. 9 is an enlarged view showing an upper surface of an indirect sheet shear according to another embodiment. FIG. 10 is an enlarged view showing a cross section of a grip portion according to another embodiment.

  Hereinafter, the present invention will be described in detail with reference to the drawings. The present invention is not limited by the following modes for carrying out the invention (hereinafter referred to as embodiments). In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range. Furthermore, the constituent elements disclosed in the following embodiments can be appropriately combined.

  FIG. 1 is a top view of an indirect sheet shear according to the present embodiment. FIG. 2 is a side view of the indirect sheet shear according to the present embodiment. As shown in FIGS. 1 and 2, the indirect sheet shear 10 includes a first member 30, a second member 50, and a connecting portion 70.

  The first member 30 and the second member 50 are connected by a connecting portion 70. Moreover, the 1st member 30 and the 2nd member 50 are shapes which are substantially line symmetrical about a connection part as an axis | shaft. The first member 30 includes a first clamping unit 31, a first gripping unit 35, and a first connection unit 37 that connects the first clamping unit 31 and the first gripping unit 35. Further, the first sandwiching portion 31 is formed with a plurality of reinforcing ribs 33 along the longitudinal direction of the rectangular plate. The second member 50 includes a second sandwiching portion 51, a second gripping portion 55, and a second connection portion 57 that connects the second sandwiching portion 51 and the second gripping portion 55. In addition, the second sandwiching portion 51 is formed with a plurality of reinforcing ribs 53 along the longitudinal direction of a rectangular plate. The indirect sheet shear 10 is supported in a state in which the first connecting portion 37 and the second connecting portion 57 are rotatable by the connecting portion 70.

  Hereinafter, the shape of the first member 30 will be described as a representative. In the first member 30 of the present embodiment, the first clamping unit 31, the first gripping unit 35, and the first connection unit 37 are integrally formed by, for example, an injection molding machine (not shown). The first member 30 is made of an electrically insulating material such as synthetic resin. The 1st clamping part 31 is a rectangular board | plate material. The first clamping unit 31 is formed with a plurality of reinforcing ribs 33 along the longitudinal direction of a rectangular plate. The reinforcing rib 33 is formed on the surface of the first clamping part 31 opposite to the second clamping part 51 side. The first clamping portion 31 is connected to the first connection portion 37 at the base end portion (the other end portion in the longitudinal direction) opposite to the distal end portion (one end portion in the longitudinal direction).

  The first grip portion 35 is a plate-like member and is connected to the first connection portion 37. The first gripping portion 35 is a portion that is gripped by a yatco or the like when the object is sandwiched between the indirect sheet shears 10. The shape of the first grip portion 35 will be described later.

  The first connection part 37 connects the first clamping part 31 and the first grip part 35. Here, the 1st connection part 37 is connected in the state in which the plate-shaped surface of the 1st clamping part 31 and the plate-shaped surface of the 1st holding part 35 incline by the predetermined angle. Thereby, as shown in FIG. 2, the plate-shaped surface of the 1st holding part 35 inclines the plate-shaped surface of the 1st member 30 with respect to the plate-shaped surface of the 1st clamping part 31. As shown in FIG. Specifically, the angle between the plate-shaped surface of the first clamping unit 31 and the plate-shaped surface of the first gripping unit 35 on the side far from the second member 50 is less than 180 degrees.

  The connecting portion 70 includes a fixing pin 77, a spring 71, and an annular member 79. The fixing pin 77 is a connecting member that is inserted in the width direction of the first member 30 and the second member 50 and connects the holding members. The spring 71 is a helical metal spring and includes a winding portion 73 and a linear portion 75 extending from both ends of the winding portion 73. The winding part 73 is wound around the fixing pin 77. The linear portion 75 extends from the winding portion 73 so as to expand toward the end, and a biasing force acts in a direction in which the first sandwiching portion 31 and the second sandwiching portion 51 are pressed against the surface facing the other sandwiching portion. Built to be. The annular member 79 surrounds the outer periphery of the first clamping part 31 and the second clamping part 51 on the outside of the insertion location of the fixing pin 77 and the spring 71. The annular member 79 protects the fixing pin 77 and the spring 71 from being exposed on the surface.

  The indirect sheet shear 10 is biased in a direction in which the first member 30 and the second member 50 are connected by the connecting portion 70 and the first holding portion 31 and the second holding portion 51 are in contact with each other. . Thereby, as shown in FIG. 2, in the indirect sheet shear 10, the first clamping unit 31 and the second clamping unit 51 are in contact with each other when no external force is applied. Further, the indirect sheet shear 10 is connected in a state where the first sandwiching portion 31 and the first gripping portion 35 are inclined, and is connected in a state where the second sandwiching portion 51 and the second gripping portion 55 are inclined. Therefore, in a state where the first clamping unit 31 and the second clamping unit 51 are in contact with each other, the first holding unit 35 and the second holding unit 55 are separated from the first connection unit 37 and the second connection unit 57. The interval between the first gripping part 35 and the second gripping part 55 is also increased. Further, the indirect sheet shear 10 can be rotated with the fixing pin 77 of the connecting portion 70 as a fulcrum, and when the first gripping portion 35 and the second gripping portion 55 are moved closer to each other, the first clamping portion 31 is moved. And the second clamping part 51 are rotated in a direction away from each other.

  Next, in addition to FIGS. 1 and 2, the first grip portion 35 and the second grip portion 55 will be described in detail with reference to FIG. 3. FIG. 3 is an enlarged view showing a cross section of the grip portion according to the present embodiment. Here, since the 1st holding | grip part 35 and the 2nd holding part 55 are the same shapes, hereafter, it demonstrates as the holding part 100 collectively. The gripping unit 100 includes a fixed unit 110, a rotating unit 150, and a position restriction mechanism 180.

  The fixing part 110 is a part connected to the first connection part 37 and the second connection part 57, that is, a part integrated with other parts of the first member 30 and the second member 50. The fixing part 110 is a plate-like member, and has a through hole 112, a concave part 115, and a concave part 116. The recess 115 is recessed from a surface (hereinafter also referred to as an upper surface) away from the plate-shaped other gripping portion of the fixed portion 110 toward a surface facing the other gripping portion (hereinafter also referred to as a bottom surface). The recess 116 is recessed from the bottom surface of the fixing unit 110 toward the top surface. That is, the fixing portion 110 has a recess 115 formed on the top surface and a recess 116 formed on the bottom surface. The through hole 112 communicates the recess 115 and the recess 116. The through hole 112 extends in a direction orthogonal to the surface of the fixed portion 110. Further, in the recess 115 and the recess 116, the side wall forming the recess is a circle centering on the center line CL of the through hole 112. That is, as shown in FIG. 1, the concave portion 115 and the concave portion 116 have a circular shape when viewed from a direction orthogonal to the upper surface. Further, the recess 115 is a circle having a larger diameter than the recess 116. The recess 116 is a circle having a diameter larger than that of the through hole 112.

  The rotating part 150 is a member that rotates with respect to the fixed part 110, and is a disk that is inserted into the recessed part 115 of the fixed part 110. The rotating part 150 has a recessed part 155 that is recessed from the disk toward the bottom surface. The recess 155 has a size into which, for example, an indirect hot wire tool (for example, an insulating jacket) is inserted. The recess 155 is a gripping surface 157 in which the surface serving as the bottom of the recess comes into contact with the indirect live tool. The gripping surface 157 has a plurality of protrusions 159 formed on the surface. In the present embodiment, the protrusion 159 has a cone or pyramid shape with a triangular cross section. The cross section of the protrusion 159 is not limited to a triangular shape, and may be a semicircular, rectangular, or trapezoidal shape, for example. The rotating unit 150 can prevent the indirect live tool from slipping when gripped by the indirect live tool by forming the protrusion 159 on the grip surface 157.

  As for the rotation part 150, the rotating shaft 170 is being fixed to the surface of the bottom face. The rotating shaft 170 is inserted into the through hole 112 of the fixed portion 110. Further, the rotating part 150 has a rotating plate 190 fixed to the bottom surface side of the through hole 112. The rotating plate 190 is inserted into the concave portion 116 of the fixed portion 110. The rotating unit 150, the rotating shaft 170, and the rotating plate 190 are fixed at positions where their centers coincide. In addition, in the grip portion 100, the surface on the central axis CL side of the fixed portion 110, that is, the inner peripheral surface of the circle becomes an outer frame 130 that surrounds the rotating portion 150.

  The position restriction mechanism 180 restricts the movement of the position of the rotating part 150 relative to the fixed part 110. That is, the position restricting mechanism 180 restricts the rotation of the rotating unit 150 and supports the position of the rotating unit 150 in the rotation direction within a predetermined angle range when no external force is applied. The position restriction mechanism 180 is provided at a position where the fixed portion 110 and the rotating portion 150 face each other. The position restricting mechanism 180 of the present embodiment is provided in the through hole 112 of the fixed portion 110 and the rotating shaft 170 of the rotating portion 150.

  Next, the position regulating mechanism 180 will be described with reference to FIGS. 4A to 4C in addition to FIGS. 4A to 4C are explanatory views showing the rotation state of the rotation unit according to the present embodiment, respectively. 4A to 4C show transition of the state of the position regulating mechanism 180 when the rotating unit 150 moves in the rotation direction with respect to the fixed unit 110. FIG.

  The position regulating mechanism 180 includes a plurality of convex portions 114 provided on the inner surface 113 that is the surface of the through-hole 112 and a plurality of convex portions 173 provided on the outer surface 171 that is the surface of the rotating shaft 170. The convex portions 114 are formed at regular intervals in the circumferential direction of the inner surface 113 of the through hole 112. The plurality of convex portions 114 are protrusions that are convex toward the outer surface 171 and have basically the same shape. The convex portions 173 are formed at regular intervals in the circumferential direction of the outer surface 171 of the rotating shaft 170. The plurality of convex portions 173 are convex projections on the inner surface 113 side, and basically have the same shape. Here, as shown in FIG. 4C, in the state where the convex portion 114 and the convex portion 173 are not in contact with each other, the position regulating mechanism 180 has a surface on the outer surface 171 side of the convex portion 114 on the inner surface 113 side of the convex portion 173. It protrudes to the outer surface 171 side than the surface. Further, the surface on the inner surface 113 side of the convex portion 173 protrudes closer to the inner surface 113 side than the surface on the outer surface 171 side of the convex portion 114. Further, in the position restricting mechanism 180, the same number of the convex portions 114 and the convex portions 174 are arranged in the circumferential direction (the direction around the central axis CL).

  If the force which rotates the rotation part 150 with respect to the fixing | fixed part 110 acts on the position control mechanism 180, as shown to FIG. 4A, the convex part 114 and the convex part 173 will contact. Thereafter, when a force of a predetermined level or more is applied in the rotation direction, the convex portion 114 and the convex portion 173 are deformed as shown in FIG. 4B, and the tips of the convex portion 114 and the convex portion 173 are in contact with each other. With respect to 114 rows, the row of convex portions 173 moves by one unevenness in the rotation direction. Thereafter, when the rotating unit 150 further rotates in the rotation direction, the protruding portion 114 and the protruding portion 173 are not in contact with each other as shown in FIG. 4C. Further, when the rotational force acting on the position regulating mechanism 180 is small, even if the convex portion 114 and the convex portion 173 are in contact with each other as shown in FIG. When it does not act, the state where the relative positions of the rows of the convex portions 114 and the rows of the convex portions 173 are the same is maintained.

  As described above, the position restricting mechanism 180 is a ratchet in which the position where the convex portion 114 and the convex portion 173 are engaged changes stepwise according to the interval between the convex portion 114 and the convex portion 173, and the relative position in the rotational direction changes stepwise. It becomes a mechanism.

  Next, an operation when the indirect sheet shear 10 is used will be described with reference to FIGS. In addition, below, it demonstrates as a case where the indirect sheet | seat shears 10 are operated using the insulating Yatco 200 as an indirect hot wire tool. FIG. 5 is an explanatory diagram showing a gripping relationship between the gripping portion and the insulating jacket according to the present embodiment. FIG. 6 is an explanatory view showing a state in which the insulating jacket is gripped by the indirect sheet shears according to the present embodiment. FIG. 7 is an explanatory view showing a state in which the indirect sheet shears according to the present embodiment are rotated.

  In the indirect sheet shear 10, since the rotating portion 150 that is gripped by the insulating jacket 200 of the grip portion 100 is circular, as shown in FIG. 5, any direction of the grip portion 100, arrow A, arrow B, arrow C, arrow It can be grasped by the base 210 of the insulating Yatco 200 from any of the directions D, arrow E, and arrow F. Thus, the user can hold the indirect sheet shear 10 with the first clamping unit 31 and the second clamping unit 51 in an arbitrary direction with the base 210 of the YATCO 200.

  As shown in FIG. 6, the indirect sheet shear 10 holds both the gripping portions 100 (that is, the first gripping portion 35 and the second gripping portion 55) with the base 210 of the insulating jacket 200, and further, predetermined When sandwiched by the pressure or higher, the first gripping portion 35 and the second gripping portion 55 approach each other with the connecting portion 70 as an axis, and the tips of the first sandwiching portion 31 and the second sandwiching portion 51 are separated. As a result, the user can hold the indirect sheet shear 10 with the insulating jacket 200 and put the object between the first clamping part 31 and the second clamping part 51.

  Furthermore, the indirect sheet shear 10 is provided with the rotating part 150 in the grip part 100, so that the orientation of the first member 30 and the second member 50 with respect to the insulating jacket 200 is maintained while maintaining the state sandwiched by the insulating jacket 200. Can be moved (rotated) in any direction. In this case, the user places the first clamping unit 31 and the second clamping unit 51 on a non-moving member such as a utility pole, and applies a predetermined force or more to the rotating unit 150 to fix the fixed unit 110. The direction of the 1st member 30 and the 2nd member 50 is moved with respect to the insulating Yatco 200 by rotating.

  As described above, the indirect sheet shear 10 is provided with the rotating unit 150 at a position sandwiched by the indirect live tool of the grip unit 100, while maintaining the state of sandwiching the grip unit 100 by the indirect live tool, The 1st clamping part 31 and the 2nd clamping part 51 can be rotated. Thereby, the user is not ideal with respect to the object (electric wire or the like) for which the orientation of the first sandwiching portion 31 and the second sandwiching portion 51 is grasped, and when the orientation is desired to be changed, the user is sandwiched with an indirect hot wire tool. The first clamping part 31 and the second clamping part 51 can be rotated while maintaining the above. In other words, the orientation can be changed without grasping the indirect sheet shear 10 with the indirect live tool. Thereby, working efficiency can be improved.

  Further, the indirect sheet shear 10 is provided with a position regulating mechanism 180 so that the rotating unit 150 is maintained within a predetermined angle range with respect to the fixed unit 110 in a state where no external force is applied. During the operation, the first clamping unit 31 and the second clamping unit 51 can be prevented from rotating in an unintended direction. Thereby, adjustment of the direction of the 1st clamping part 31 and the 2nd clamping part 51 becomes easy, and work efficiency can be improved.

  Further, the indirect sheet shear 10 is provided with a plurality of protrusions 159 on the gripping surface 157, so that when the indirect sheet shear 10 is sandwiched with an indirect live tool, the indirect sheet shear 10 is shifted, Slipping can be suppressed. Thereby, working efficiency can be improved.

  Further, the indirect sheet shear 10 may be configured so that the rotating plates 190 of the gripping part 100 come into contact with each other when the gripping part 100 is gripped by the insulating jacket 200. As described above, the rotation plates 190 come into contact with each other, whereby the resistance when the rotating unit 150 of the gripping unit 100 rotates with respect to the fixed unit 110 can be reduced. In addition, the indirect sheet shears 10 may be configured so that the rotating plates 190 do not come into contact with each other when the gripping portion 100 is gripped by the insulating jacket 200. That is, the fixed portions 110 may be in contact with each other and the rotating plate 190 may be lifted with respect to the fixed portion 110.

  Here, in the present embodiment, the position restricting mechanism 180 is provided with unevenness on the opposing surfaces of the fixed portion 110 and the rotating portion 150, the unevenness is fitted, and the fitting position is shifted by an external force, thereby shifting the fixed portion 110. However, the mechanism is not limited to this. In the state where the external force is not applied, the position restricting mechanism 180 does not rotate the rotating part 150 with respect to the fixed part 110, and the rotating part 150 rotates with respect to the fixed part 110 when an external force exceeding a predetermined value is applied. Any mechanism may be used.

  In the position restriction mechanism 180 of the above embodiment, the same number of convex portions is provided on the entire circumference of both surfaces of the fixed portion 110 and the rotating portion 150 facing each other, but either one may be smaller than the other. . The position regulating mechanism 180 can regulate the relative position in the rotational direction by sandwiching a small number of convex portions provided on one side between the convex portions provided on the entire circumference.

  FIG. 8A to FIG. 8C are explanatory views showing the rotation state of the rotation unit according to another embodiment. The position restricting mechanism 181 includes a convex portion 114a, an elastic member 117, and a plurality of convex portions 173. The convex portion 114a is fixed to the elastic member 117. The elastic member 117 is inserted into a recess 116 a provided on the inner surface 113 a of the fixed portion 110. The position restricting mechanism 181 urges the convex portion 114 a with the elastic member 117 toward the outer surface 171 on which the convex portion 173 is formed.

  When a force that rotates the rotating portion 150 is applied to the fixed portion 110, the position regulating mechanism 181 contacts the slope of the convex portion 114a and the slope of the convex portion 173 as shown in FIG. 8A. Thereafter, when a predetermined force or more is applied in the rotation direction, the convex portion 114a is pushed by the convex portion 173 as shown in FIG. 8B, the elastic member 117 contracts, and the convex portion 114a moves to the bottom side of the concave portion 116a. . As a result, the tips of the convex portions 114a and 173 are in contact with each other, and the row of the convex portions 173 moves by one unevenness in the rotation direction with respect to the convex portions 114a. Thereafter, when the rotating part 150 further rotates in the rotation direction, as shown in FIG. 8C, a distance is formed between the convex part 114 a and the convex part 173, and the convex part 114 a is pushed by the elastic member 117, and next to the convex part 173. The concave portion and the convex portion 114a are in contact with each other. In addition, as shown to FIG. 8C, the state which the convex part 114a and the convex part 173 do not contact does not arise, and the convex part 114a and the convex part 173 may always contact. Further, when the acting force in the rotational direction is small, the position restricting mechanism 181 does not contract the elastic member 117 to the state shown in FIG. 8B even if the convex portion 114a and the convex portion 173 come into contact with each other as shown in FIG. 8A. If the state as it is is maintained and the force in the rotational direction is no longer applied, the relative positions of the convex portions 114a and the rows of the convex portions 173 are maintained in the same state.

  The position regulating mechanism 181 is a mechanism that rotates when an external force of a predetermined level or more acts in the rotation direction by moving the position of the convex portion 114a using the elastic member 117. In this way, the ratchet mechanism can be realized as a structure that deforms the elastic member instead of deforming the convex portion. In the present embodiment, the case where the ratchet mechanism is used as the position restricting mechanism has been described. However, various mechanisms may be used as long as the structure can restrict the position in the rotation direction.

  In the indirect sheet shear 10 of the above embodiment, the position restriction mechanism 180 is provided between the through hole 112 and the rotating shaft 170, but the present invention is not limited to this. The indirect sheet shear can be provided with a position regulating mechanism at various positions where a surface orthogonal to the upper surface of the fixed portion and a surface orthogonal to the upper surface of the rotating portion face each other.

  FIG. 9 is an enlarged view showing an upper surface of an indirect sheet shear according to another embodiment. FIG. 10 is an enlarged view showing a cross section of a grip portion according to another embodiment. The indirect sheet shear 10A shown in FIGS. 9 and 10 has basically the same configuration as the indirect sheet shear 10 except for the position where the position restriction mechanism 180A is provided. Hereinafter, characteristic points of the indirect sheet shear 10A will be described mainly.

  The position restricting mechanism 180A of the grip portion 100A of the indirect sheet shear 10A includes a plurality of convex portions 131 formed on the inner surface 111 serving as the wall surface of the concave portion 115 of the outer frame 130a of the fixed portion 110a, and the inner surface 111 of the rotating portion 150a. And a plurality of convex portions 153 formed on the outer surface 151 facing each other. Here, the outer surface 151 is the outermost surface (surface farthest from the central axis CL) in the direction around the axis orthogonal to the upper surface of the rotating portion 150a. The position restricting mechanism 180A restricts movement in the rotational direction by engaging the convex 131 and the convex 151 in the same manner as the convex 114, 173 of the position restricting mechanism 180 described above. Further, in the gripping part 100A, the through hole 112a of the fixed part 110a and the rotating shaft 170a of the rotating part 150a are not provided with a convex part, and there is a gap.

  The indirect sheet shear 10A is provided with a position restricting mechanism 180A on the inner surface 111 that is the wall surface of the recess 115 and the outer surface 151 that is the surface facing the wall surface, so that the rotation direction of the rotating portion 150a is the same as that of the position restricting mechanism 180. Can be regulated. Further, since the position restricting mechanism 180A is formed at a position far from the central axis CL serving as the rotation axis, the number of the convex portions 131 and 153 arranged in the circumferential direction can be increased more than the position restricting mechanism 180, The position in the direction can be regulated with higher resolution.

DESCRIPTION OF SYMBOLS 10 Indirect sheet shear 30 1st member 31 1st clamping part 33 Reinforcement rib 35 1st holding part 37 1st connection part 50 2nd member 51 2nd clamping part 53 Reinforcement rib 55 2nd holding part 57 2nd connection part 70 connecting portion 71 spring 73 winding portion 75 linear portion 77 fixing pin 79 annular member 100 gripping portion 110 fixing portion 112 through hole 113 inner surface 114, 131, 153, 173 convex portion 111, 115, 116, 155 concave portion 117 elastic member DESCRIPTION OF SYMBOLS 130 Outer frame 150 Rotating part 151 Outer surface 157 Holding surface 170 Rotating shaft 171 Outer surface 180 Position regulating mechanism 190 Rotating plate 200 Insulating Yatco 210 Base

Claims (7)

A first member having a first clamping part extending in one direction, a first gripping part extending in one direction, and a first connection part that connects the first clamping part with an inclination to the first gripping part. When,
The second holding part extending in one direction, the second gripping part extending in one direction, and the second holding part are inclined to the opposite side of the first connection part with respect to the second holding part. A second member having a second connecting portion;
The first connecting part and the second connecting part are coupled in a rotatable state while being urged in a direction in which the first holding part and the second holding part are in contact with each other, A second clamping part, and a connecting part serving as a base point for opening and closing the first gripping part and the second gripping part,
The first gripping portion and the second gripping portion are respectively a fixed portion fixed to the first connection portion and the second connection portion, and a surface facing the other fixed portion of the one fixed portion. The rotating portion is disposed on a surface opposite to the fixing portion, and is provided at a position where the rotating portion can rotate around an axis perpendicular to the opposite surface with respect to the fixing portion, and the fixing portion and the rotating portion face each other. A position regulating mechanism that supports a position of the rotating portion in the rotation direction within a predetermined angle range when no external force is applied.   The indirect sheet shear according to claim 1, wherein the position restricting mechanism is a ratchet mechanism formed on a surface where the fixed portion and the rotating portion face each other. The fixing portion is formed with a through hole,
The indirect sheet shear according to claim 1, wherein the rotating part has a rotating shaft inserted into the through hole.   The indirect sheet shear according to claim 3, wherein the position restricting mechanism is formed on a surface where the through hole of the fixed portion and the rotating shaft of the rotating portion are opposed to each other.   The indirect sheet shears according to any one of claims 1 to 4, wherein the fixed portion has an outer frame surrounding an outer periphery of the rotating portion.   The indirect sheet shear according to claim 5, wherein the position restricting mechanism is formed on a surface where the outer frame of the fixed portion and the rotating portion are opposed to each other.   The indirect sheet shears according to any one of claims 1 to 6, wherein the rotating part has a protrusion formed on the opposite surface.

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