JP2012125856A - Cutting tool of fastening band - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutting tool of a fastening band that is easily arranged in a planned cutting position of the fastening band even if a gap between the fastening band and a member to which the band is fixed is narrow, and enables a predetermined cutting operation by a small operating force.SOLUTION: The tool includes: a lever 11 that has a first blade inside a tip thereof for cutting the fastening band being a cutting target; and a rod-shaped base 13 that is inserted to a gap between the fastening band and the member to which the band is fixed, is connected to the lever 11 so as to be turnable via a hinge 12 at the side closer to a tip than the first blade of the lever 11, and has a second blade between itself and the first blade for sandwiching and shearing the fastening band.

Description

  The present invention relates to a binding band cutting tool, and is particularly useful when applied to the cutting of a stainless steel band wound around an outer peripheral surface of a utility pole to bind a protective pipe for a ground wire or a sign.

  As shown in FIG. 6, for example, a protection pipe 2 for a grounding wire is fastened and fixed to a utility pole 1 with a stainless steel band 3 that is a kind of a binding band. Such fixing is performed by bringing the inner peripheral surface of the stainless steel band 3 into contact with the protective pipe 2 from the outside, winding the stainless steel band 3 around the outer peripheral surface of the utility pole 1, and connecting both ends thereof with the connecting portions 3A. Therefore, the stainless steel band 3 is usually fixed with its inner peripheral surface in close contact with the outer peripheral surface of the utility pole 1.

  On the other hand, when the protective pipe 2 is replaced, it may be necessary to release the fixing of the protective pipe 2 by the stainless steel band 3. In this case, the stainless steel band 3 must be cut.

  Conventionally, such cutting work is performed using a tool such as pliers. That is, as shown in FIG. 7, the blade portion 4 </ b> A of the pliers 4 is placed in a slight gap formed between the outer peripheral surface of the utility pole 1 formed in the vicinity of the protective pipe 2 and the inner peripheral surface of the stainless steel band 3. It is inserted and operated by the operator so that the distance between the two gripping portions 4B is reduced with the hand 5.

  In such a cutting operation, it is necessary to insert the finger of the hand 5 into a narrow space between the grip 4B on the power pole 1 side and the outer peripheral surface of the power pole 1 in order to operate the grip 4B on the power pole 1 side. Therefore, a considerable gripping force is required for the cutting work, which is difficult.

  In addition, a nipper and the cutting tool disclosed in Patent Document 1 are also used as this type of cutting tool.

JP 2002-119778 A

  However, the cutting tool disclosed in the nippers and Patent Document 1 is formed between the outer peripheral surface of the utility pole 1 and the inner peripheral surface of the stainless steel band 3 in the cutting operation of the stainless steel band 3 in the same manner as the pliers. It is necessary to insert the finger of the operator's hand into a narrow space between the gripping part on the power pole 1 side and the outer peripheral surface of the power pole 1 in order to insert it into a slight gap and to operate the gripping part on the power pole 1 side. . For this reason, the cutting operation is difficult to perform, and a considerable gripping force is required for cutting.

  In view of the above-described problems of the prior art, the present invention can be easily installed at a planned cutting position of a binding band even when there is only a narrow gap between the binding band and a member to which the binding band is fixed, and can be predetermined with a small operating force. An object of the present invention is to provide a binding band cutting tool capable of performing the cutting operation.

  According to a first aspect of the present invention, there is provided a lever portion having a first blade portion for cutting a binding band to be cut on the inner surface side of the tip portion, the binding band, and a member to which the binding band is fixed. The first blade is pivotably connected to the lever portion via a hinge portion on the distal end side of the first blade portion of the lever portion. A binding band cutting tool comprising: a rod-shaped base having a second blade for sandwiching and binding the binding band between the first and second portions.

  According to a second aspect of the present invention, in the cutting tool for a binding band described in the first aspect, the base is movably movable in the axial direction of the base and covers the first and second blade portions. A cutting part guard attached to the base, and a U-shape extending from one side of the base to the lever part, passing through the outside of the outer surface of the lever to the other side of the base A binding band cutting tool having an opening adjusting portion integrally fixed to a tip of the cutting portion guard as a member.

  According to a third aspect of the present invention, in the binding band cutting tool according to the first or second aspect, the first blade portion projects from the lever portion toward the base. And the second blade portion has a reverse shape with respect to the first step portion so as to apply a shearing force for cutting the binding band sandwiched between the second step portion and the first step portion. A cutting tool for a binding band characterized by having two step portions.

  According to a fourth aspect of the present invention, in the binding band cutting tool described in the first or second aspect, the first blade portion has a convex portion protruding from the lever portion toward the base. The second blade portion has a concave portion having a shape opposite to the convex portion so as to apply a shearing force for cutting the binding band sandwiched between the convex portion and the second blade portion. There is a binding band cutting tool to do.

  According to a fifth aspect of the present invention, in the binding band cutting tool according to the third or fourth aspect, the first blade portion jumps from the base side to the lever portion side by a reaction force at the time of cutting. The bundling band cutting tool is characterized in that a spring-up preventing part that abuts the bundling band and regulates its position is formed in a direction protruding from the rotating surface of the lever part.

  According to a sixth aspect of the present invention, in the binding band cutting tool according to any one of the first to fifth aspects, an inner base end portion that is a side facing the lever portion of the base is provided. Is a binding band cutting tool characterized in that a taper portion inclined toward the base end is formed.

  According to a seventh aspect of the present invention, the middle of two intersecting rod-shaped members is rotatably supported by a hinge portion, and each of the rod-shaped members has a blade portion at the distal end portion and a proximal end. The lever part of the binding band cutting tool described in any one of the first to sixth aspects is accommodated in one of the gripping parts of the pliers-like tool whose part is the gripping part so that it can be pulled out in the axial direction. It is in the cutting tool of the binding band characterized by being made.

  According to the present invention, the base can be easily inserted between the binding band to be cut and the member to which the binding band is fixed, and the lever portion is placed on the base side with the base inserted in this manner. By rotating in the direction, a binding band can be sandwiched between the first blade portion and the second blade portion, and a shearing force can be applied to this. As a result, the operator can easily perform a predetermined cutting operation simply by pressing the lever portion toward the binding band. Therefore, the working efficiency of the predetermined cutting work can be dramatically improved.

It is a figure which shows the cutting tool (mode at normal time) of the binding band which concerns on the 1st Embodiment of this invention, (a) is the side view, (b) is a top view, (c) is a cutting part guard, An enlarged side view showing the opening adjusting part extracted integrally, (d) is a rear view of (c), (e) is an AA ′ line enlarged sectional view of (a), and (f) is another example. It is an enlarged view which extracts and shows the edge part of the base part which concerns on. It is a figure which shows the cutting tool (mode at the time of use) of the binding band which concerns on the 1st Embodiment of this invention, (a) is a side view corresponding to Fig.1 (a), (b) is FIG.1 (e). It is an expanded sectional view corresponding to). It is a figure which extracts and shows a part of cutting tool of the binding band which concerns on the 2nd Embodiment of this invention, (a) is an expanded sectional view of the state corresponding to FIG.1 (e), (b) is a figure. It is an expanded sectional view of the state corresponding to 2 (b). It is explanatory drawing which shows notionally the usage condition in the case of cut | disconnecting the stainless steel band fixed to the utility pole with the cutting tool which concerns on the 1st or 2nd embodiment of this invention. It is a side view which shows the 3rd Embodiment of this invention. It is explanatory drawing which shows notionally the aspect in the case of fixing a protection pipe using a stainless steel band to a utility pole. It is explanatory drawing which shows notionally the aspect at the time of the cutting | disconnection operation | work of the conventional stainless steel band.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<First Embodiment>
FIG. 1 is a view showing a binding band cutting tool (a normal mode) according to the first embodiment of the present invention, FIG. 1 (a) is a side view thereof, and FIG. 1 (b) is a plan view thereof. As shown in both figures, the lever portion 11 has a first blade portion (FIG. 1 (a) for cutting a stainless steel band 3 (see FIGS. 6 and 7; the same applies hereinafter) as a binding band on the inner surface side of the tip portion. ), (B) is a rod-shaped member having a hinge portion 12 at the distal end portion and is rotatably connected to the base 13. The base 13 is formed so as to be insertable into a gap between the stainless steel band 3 and the utility pole 1 (see FIGS. 6 and 7; the same applies hereinafter) that is a member to which the stainless steel band 3 is fixed. It is a rod-shaped member having a second blade portion (not shown in FIGS. 1A and 1B) for sandwiching and shearing the stainless steel band 3 between the blade portion. The cutting part guard 14 is attached to the base 13 so as to be movable in the axial direction of the base 13 and covers the first and second blades, and restricts the amount of rotation of the lever part 11 at the tip thereof. The opening adjusting portion 15 is fixed integrally. Here, FIG. 1C and FIG. 1D will be added and the cutting part guard 14 and the opening adjustment part 15 will be described in more detail.

  FIG. 1C is an enlarged side view in which the cut portion guard and the opening adjusting portion are integrally extracted, and FIG. 1D is a rear view of FIG. As shown in both drawings, the cutting guard 14 is disposed so that the inside thereof faces the both side surfaces of the base 13 respectively, and in the axial direction of the base 13 (the left-right direction in FIG. 1C). The protrusion 14 </ b> A extends to reach the opening adjustment portion 15. The cutting guard 14 is formed so as to be movable in the axial direction of the base 13 via the protrusion 14A. This will be described in detail later. The opening adjusting portion 15 extends from one side surface of the base 13 to the lever portion 11 side, passes through the outside of the outer surface of the lever portion 11, and reaches the other side surface of the base 13 (FIG. 1D). Member). When the outer surface of the lever portion 11 comes into contact with the inner surface of the horizontal portion 15A of the opening adjusting portion 15, the amount of rotation of the lever portion 11 with the hinge portion 12 as the rotation center is defined. Therefore, the amount of rotation of the lever portion 11 varies depending on the position of the opening adjustment portion 15 integrated with the cutting portion guard 14 on the base 13. That is, the amount of rotation of the lever portion 11 can be increased as the opening adjustment portion 15 is positioned on the distal end side (left side in FIG. 1A) of the base 13.

  FIG. 1E is an enlarged cross-sectional view taken along line AA ′ of FIG. As shown in the drawing, the first blade portion 16 has a first step portion 16A that protrudes from the lever portion 11 toward the base 13, and the second blade portion 17 includes the first step portion 16A and the first step portion 16A. A second step portion 17A having a reverse shape with respect to the first step portion 16A that applies a shearing force for cutting the stainless steel band 3 sandwiched therebetween is provided. Here, the stainless steel band 3 that jumps from the base 13 side to the lever part 11 side by the reaction force at the time of cutting is brought into contact with the first blade part 16 to restrict the position of the stainless steel band 3 (FIG. 2 ( b) is formed in a direction protruding from the rotating surface of the lever portion 11 (horizontal direction in FIG. 3). Further, a groove 13A extending in the axial direction is formed on both side surfaces of the base 13, and the cutting part guard 14 and the opening adjusting part 15 are integrally formed by fitting the protrusion 14A into the groove 13A. Attached to the base 13.

  As shown in FIG. 1 (f), a taper portion 13 </ b> B that is inclined toward the base end may be formed on the inner base end portion that is the side facing the lever portion 11 of the base 13. When the taper portion 13B is formed, the base 13 is inserted into the gap when the stainless band 3 is cut by inserting the base 13 into the gap between the stainless steel band 3 and the utility pole 1. It becomes easy.

  When cutting the stainless steel band 3 using the cutting tool I, as shown in FIG. 2 (a) corresponding to FIG. 1 (a) and FIG. 2 (b) corresponding to FIG. The first blade portion 16 is obtained by moving the part guard 14 and the opening adjusting portion 15 integrally to the distal end side of the base 13 and rotating the lever portion 11 to the side opposite to the base 13 side (counterclockwise). And the second blade portion 17 are sufficiently opened. In this state, the stainless steel band 3 is inserted between the first blade portion 16 and the second blade portion 17, and the lever portion 11 is turned to the base 13 side (clockwise) to thereby form the step portions 16A and 17A. It cut | disconnects by giving a shearing force to the stainless steel band 3 via. Further, the spring-up portion 18 can effectively prevent the spring-up due to the reaction force when the stainless steel band 3 is cut.

<Second Embodiment>
FIG. 3 is a view showing a part of a cutting tool for a binding band according to the second embodiment of the present invention, wherein (a) is an enlarged cross-sectional view of a state corresponding to FIG. ) Is an enlarged cross-sectional view of a state corresponding to FIG. As shown in both figures, in the present embodiment, the shapes of the first and second blade portions 16 and 17 are different from those of the first embodiment. That is, the first blade portion 26 in the present embodiment has a convex portion that protrudes from the lever portion 11 toward the base 13. On the other hand, the 2nd blade part 27 has a recessed part of the reverse shape with respect to the said convex part which provides the shearing force for cut | disconnecting the stainless steel band 3 clamped between the said convex parts. That is, the stainless steel band 3 is sandwiched between the step portions 26A and the step portions 27A that are formed at two locations on the convex portion and the concave portion, respectively, and a shearing force is applied. Here, the first blade portion 26 is provided with a spring-up preventing portion 28 that abuts the stainless steel band 3 that springs up from the base 13 side toward the lever portion 11 side by a reaction force at the time of cutting and regulates its position. 11 is formed in a direction protruding from the rotation surface of 11 (horizontal direction in FIG. 3). In addition, parts other than the 1st and 2nd blade parts 26 and 27 part are the completely same structures as 1st Embodiment. Therefore, the same parts are denoted by the same reference numerals, and redundant description is omitted.

  In the case of the cutting apparatus according to this embodiment, the predetermined cutting operation can be performed in the same manner as in the first embodiment. At this time, in this embodiment, since the shear points formed by the step portions 26A and 27A of the first and second blade portions 26 and 27 are formed symmetrically at two locations, the stainless steel band 3 is equally sheared accordingly. As a result, it is possible to perform a smooth cutting operation without causing a bias in shearing force as compared with the first embodiment. Further, the spring-up preventing portion 28 can effectively prevent the spring-up due to the reaction force when the stainless steel band 3 is cut.

<Usage of the first and second embodiments>
FIG. 4 is an explanatory view conceptually showing a usage mode in the case of cutting a stainless steel band fixed to a utility pole with the cutting tool according to the first or second embodiment of the present invention. As shown in the figure, during such cutting work, the base 13 of the cutting tool I is inserted between the utility pole 1 and the stainless steel band 3, and then the lever part 11 is pushed and rotated toward the stainless steel band 3 side. The stainless steel band 3 can be easily cut.

<Third Embodiment>
FIG. 5 is a side view showing a third embodiment of the present invention. As shown in the figure, in this embodiment, the cutting tool I shown as the first or second embodiment is integrated with a conventional pliers-like tool. More specifically, the middle of two intersecting rod-shaped members is rotatably supported by a hinge portion 30A, and has a blade portion 30B at the distal end portion of each rod-shaped member and a base end portion. A hole 30D extending in the axial direction is formed in one of the gripping portions 30C of the pliers-like tool 30 serving as the gripping portion 30C, and the cutting tool I according to the first or second embodiment is formed in the hole 30D. The lever portion 11 is housed so as to be capable of being pulled out in the axial direction (shown in the drawing).

  According to this form, the function of the cutting tool concerning the 1st or 2nd embodiment can be combined with the conventional pliers.

  INDUSTRIAL APPLICABILITY The present invention can be effectively used in the industrial field where a signboard or the like is fixed to a member such as a utility pole using a binding band such as a stainless steel band.

11 Lever part 12 Hinge part 13 Base 14 Cutting part guard 15 Opening adjustment part 16, 26 First blade part 16A, 17A, 26A, 27A Step part 17, 27 Second blade part 30 Plier-like tool

Claims (7)

A lever portion having a first blade portion for cutting the binding band to be cut on the inner surface side of the tip portion;
It is formed so as to be able to be inserted into a gap between the binding band and a member to which the binding band is fixed, and is rotated to the lever portion via a hinge portion on the tip side of the first blade portion of the lever portion. A bundling characterized by having a rod-shaped base having a second blade portion for being slidably connected and shearing by holding the bundling band between the first blade portion and shearing. Band cutting tool. In the binding band cutting tool according to claim 1,
A cutting part guard attached to the base so as to be movable in the axial direction of the base and covering the first and second blade parts;
Integrated into the tip of the cutting part guard as a U-shaped member that extends from one side of the base to the lever part and passes through the outside of the outer surface of the lever to the other side of the base. A tool for cutting a binding band, characterized by having an opening adjusting portion fixed thereto. In the binding band cutting tool according to claim 1 or 2,
The first blade portion includes a first step portion protruding from the lever portion toward the base, and the second blade portion is sandwiched between the first step portion and the binding. A binding band cutting tool comprising a second step portion having a shape opposite to that of the first step portion for applying a shearing force for cutting the band. In the binding band cutting tool according to claim 1 or 2,
The first blade portion has a convex portion protruding from the lever portion toward the base, and the second blade portion is for cutting the binding band sandwiched between the convex portion. A binding band cutting tool characterized by having a concave portion having a reverse shape with respect to the convex portion for applying a shearing force. In the binding band cutting tool according to claim 3 or 4,
The first blade portion has a bounce preventing portion that abuts a binding band that bounces from the base side to the lever portion side by a reaction force at the time of cutting and regulates the position thereof, protruding from the rotating surface of the lever portion. A binding band cutting tool, characterized in that it is formed in the direction of the binding band. In the binding band cutting tool according to any one of claims 1 to 5,
A binding band cutting tool, wherein a taper portion inclined toward the base end is formed at an inner base end portion of the base opposite to the lever portion. Pliers that support the middle of two intersecting rod-shaped members so as to be pivotable by hinge portions, and have a blade portion at the distal end portion of each rod-shaped member and a base end portion as a gripping portion. The binding part is characterized in that the lever part of the binding band cutting tool according to any one of claims 1 to 6 is housed in one of the gripping parts of the shaped tool so that it can be pulled out in the axial direction. Band cutting tool.