JP2018075670A - Vertical cutting auxiliary tool for corrugated resin tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical cutting auxiliary tool for a corrugated resin tube capable of performing a work for cutting or vertically splitting the corrugated resin tube, and usable by being mounted on a commercially available cutter.SOLUTION: A solid body 10 to be fitted externally is provided on the tip of a cutter P. A holding body 20 for holding both side faces of a corrugated resin tube Q is provided on the tip of the solid body 10. A vertical split holding part 21 for fixing a cutting blade P1 in a direction for vertically splitting the corrugated resin tube Q is provided. A cutting holding part 22 for fixing the cutting blade P1 laterally to the corrugated resin tube Q is provided. The corrugated resin tube Q is processed by selecting the vertical split holding part 21 and the cutting holding part 22.SELECTED DRAWING: Figure 1

Description

  The present invention is used for processing such as cutting a corrugated resin tube such as a PF tube or a CD tube or making a cut in the longitudinal direction. In particular, the size and processing means of the corrugated resin tube to be processed are arbitrarily set. The present invention relates to a vertical cutting aid for corrugated resin pipes that can be changed.

  In cable wiring work in electrical work, for example, there is work to protect cables by covering the ends of cables and cable racks or all screws with PF pipes. In this case, it is necessary to cut the PF pipe into a predetermined length or cut the longitudinal direction. However, the work to process corrugated resin pipes such as PF pipes using cutters and electric knives becomes unstable due to the hardness and wave shape of the resin pipes. It is a dangerous work.

  On the other hand, as a tool for making a cut in the longitudinal direction of a corrugated resin pipe such as an FEP pipe, a FEP pipe longitudinally splitting tool described in Patent Document 1 has been proposed. This longitudinally split tool is provided with a rotary blade that cuts the wall of the FEP pipe in a straight line in the longitudinal direction when the FEP pipe is expanded in a substantially planar shape. Then, a substantially cylindrical FEP tube guide portion for inserting and supporting the FEP tube, and a cutting instrument fixing portion for fixing the rotary blade to the opening of the FEP tube guide portion are provided.

  Further, Patent Document 2 discloses a corrugated tube cutter that cuts a valley portion of a flexible corrugated tube. In this cutter, after the corrugated tube is pushed into the recess of the cutter body and positioned in the cutting posture, the valley bottom portion of the corrugated tube is cut with the cutting edge of the cutting blade. As a result, the valley bottom of the corrugated tube can be cut reliably.

JP 2008-178922 A Japanese Patent No. 4845521

  However, since the longitudinally splitting tool described in Patent Document 1 is a tool used to longitudinally split the FEP pipe and expand the FEP pipe into a substantially flat shape, it is not possible to make a cut along the longitudinal direction of the corrugated resin pipe. Even if possible, the corrugated resin tube cannot be cut horizontally. Therefore, it is difficult to cut a corrugated resin pipe such as a PF pipe by using this vertically divided tool.

  On the other hand, the corrugated tube cutter described in Patent Document 2 has a configuration in which the corrugated resin tube can be cut horizontally but cannot be cut in the longitudinal direction of the corrugated resin tube. Therefore, this corrugated tube cutter is also not suitable for the work of vertically dividing a corrugated resin tube such as a PF tube.

  As described above, the conventional tool is limited to one function of vertically dividing the corrugated resin tube with one tool or cutting it horizontally. Therefore, a tool suitable for machining such as vertically dividing or cutting the PF pipe has not yet been provided, and machining of the PF pipe is still difficult and dangerous.

  Therefore, the present invention was created to solve the above-described problems, and when processing a corrugated resin pipe such as a PF pipe, the corrugated resin pipe can be divided vertically or cut horizontally. In addition, it is possible to adapt to multiple sizes of corrugated resin pipes, and to provide a vertical cutting aid for corrugated resin pipes that can be used by attaching to a commercially available cutter. It is the purpose.

  In order to achieve the above-mentioned object, the first means in the present invention is detachably attached to the tip of a cutter P having a cutting blade P1 slidable at the tip, and a cut is formed in the longitudinal direction of the corrugated resin tube Q. A vertical cutting aid for corrugated resin pipes that fixes the direction of the cutting blade P1 to be inserted or the direction of the cutting blade P1 that cuts the corrugated resin pipe Q laterally, and is fixed to be fitted on the tip of the cutter P. A body 10 and a sandwiching body 20 that extends from the tip of the fixed body 10 and sandwiches the side surface of the corrugated resin tube Q. The sandwiching body 20 is cut in a direction along the longitudinal direction of the corrugated resin tube Q. A vertically holding part 21 for fixing the blade P1 and a cutting and holding part 22 for fixing the cutting blade P1 horizontally with respect to the corrugated resin tube Q are provided side by side, and the vertically holding part 21 or the cutting and holding part 22 is selected. To process with the cutting blade P1 while sandwiching the corrugated resin pipe Q It lies in that the configuration was.

  In the second means, the holding body 20 has four fixed arms 23 that extend obliquely radially toward the tip of the cutting blade P1 with the cutting blade P1 of the cutter P fitted around the fixed body 10 as the center. When the fixed arm 23 is selected and the corrugated resin pipe Q is clamped, the cutting blade P1 is clamped in a state along the longitudinal direction of the corrugated resin pipe Q. Between the fixed arms 23 is the vertically sandwiched portion 21, and between the two pairs of fixed arms 23 that are sandwiched in a state where the cutting blade P <b> 1 is lateral to the corrugated resin pipe Q, the cut and sandwiched portion 22. To do.

  3rd means WHEREIN: The said cutter P is equipped with the cutting blade holding | maintenance part P2 which surrounds and hold | maintains the said cutting blade P1 which protrudes and protrudes from the front-end | tip of the said cutter P, and the said fixed body 10 is outside this cutting blade holding | maintenance part P2. A fitting portion 11 to be fitted and a fixture 12 provided on the side surface of the fitting portion 11 and fixing the fitting portion 11 to the side surface of the cutting blade holding portion P2 are provided.

  As in claim 1 of the present invention, the vertically split holding portion 21 that fixes the cutting blade P1 in the direction along the longitudinal direction of the corrugated resin tube Q, and the cutting blade P1 is fixed laterally with respect to the corrugated resin tube Q. And the cutting and sandwiching portion 22 to be cut, and the vertically split sandwiching portion 21 and the cutting and sandwiching portion 22 are selected and the corrugated resin pipe Q is processed by the cutter P. When processing the corrugated resin pipe Q, it is possible to divide the corrugated resin pipe Q vertically with a single tool or cut it horizontally. Moreover, since the orientation of the cutting blade P1 of the cutter P is stabilized by the sandwiching body 20, extremely safe and accurate processing can be performed.

  As in claim 2, the sandwiching body 20 has four fixed arms 23 extending radially from the cutting edge P <b> 1 of the cutter P on which the fixed body 10 is externally fitted toward the distal end direction of the cutting blade P <b> 1. And the fixing arm 23 is provided with the vertically holding portion 21 and the cutting and holding portion 22, so that even if the diameter of the corrugated resin pipe Q is changed, the distal direction of the cutting blade P 1 from the fixed body 10 is changed. The four fixed arms 23 extended in the four oblique directions toward the surface always come into contact with the side surface of the corrugated resin pipe Q. Therefore, it can be applied to a plurality of sizes of the corrugated resin pipe Q. Furthermore, when the corrugated resin pipe Q is a PF pipe, it can also be used for processing a multi-layer PFD or a single-layer PFS.

  As in claim 3, the fixed body 10 includes a fitting portion 11 that is fitted on the cutting blade holding portion P2 at the tip of the cutter P, and a fitting portion 11 that is provided on a side surface of the fitting portion 11 and that is used as the cutting blade holding portion P2. Since it is provided with the fixing tool 12 that is fixed to the head, even a commercially available cutter that is always provided by the operator can be easily mounted and used.

It is a disassembled perspective view which shows the state which mounts this invention. It is principal part sectional drawing which shows the mounting state of this invention. It is a top view which shows one Example of this invention. It is a bottom view which shows one Example of this invention. It is a front view which shows the state which uses the vertically split clamping part of this invention. It is a side view which shows the state which uses the vertically split clamping part of this invention. It is a front view which shows the state which uses the cutting clamping part of this invention. It is a side view which shows the state which uses the cutting clamping part of this invention.

  The cutting aid of the present invention is detachably attached to the tip of a cutter P having a slidable cutting blade P1, and is used when cutting the corrugated resin tube Q with the cutter P. The configuration of the present invention includes a fixed body 10 and a sandwiching body 20 so that the side surface of the corrugated resin pipe Q can be sandwiched by selecting the direction of the cutting blade P1 of the cutter P.

  The fixed body 10 is a part that is externally fitted to the tip of the cutter P, and includes a fitting portion 11 and a fixture 12 (see FIG. 1). The fitting portion 11 is an annular portion that is fitted on the cutting blade holding portion P2 at the tip end portion of the cutter P. A commercially available cutter P provided with a slidable cutting blade P1 is provided with a cutting blade holding portion P2 in advance. Therefore, by fitting the fitting portion 11 to the cutting blade holding portion P2 so as to be detachable, it is possible to fix and use the cutter P that is always provided by an operator.

  The fixture 12 is a fixing member provided in the fitting portion 11 and fixes the fitting portion 11 to the cutting blade holding portion P2 (see FIG. 2). The illustrated fixture 12 has a fixing screw shape that is screwed into a screw hole 13 provided on the side surface of the fitting portion 11 and is fixed to the side surface of the cutting blade holding portion P2 by pressure. Thus, by fixing the cutting blade holding part P2 with the fixing tool 12, even a commercially available cutter P can be easily mounted. However, instead of the commercially available cutter P, it is also possible to use a cutter P in which the shape of the blade holding portion P2 is changed in advance to make the mounting of the fixed body 10 easier.

  The sandwiching body 20 is a part that sandwiches the side surface of the corrugated resin tube Q, and is provided at the tip of the fixed body 10 (see FIG. 1). This sandwiching body 20 is provided with a vertically sandwiching part 21 and a cutting and sandwiching part 22. The vertically split holding portion 21 is a portion that fixes the direction of the cutting blade P1 along the longitudinal direction of the corrugated resin pipe Q, and is used when the slit is cut vertically in the longitudinal direction of the corrugated resin pipe Q. (See FIG. 3). On the other hand, the cutting and clamping portion 22 is a portion that fixes the cutting blade P1 sideways with respect to the corrugated resin tube Q, and is used when the corrugated resin tube Q is laterally cut (see FIG. 4).

  The illustrated clamping body 20 is provided with four fixed arms 23 that extend radially in four directions toward the oblique tip with the cutting edge P1 protruding from the fixed body 10 as the center (see FIG. 3). . Then, by changing the direction of the corrugated resin pipe Q sandwiched between the fixed arms 23, the vertically split sandwiching portion 21 and the cutting sandwiching portion 22 are selectively used (see FIG. 4).

  That is, when the corrugated resin pipe Q is sandwiched between the fixed arms 23, the cutting blade P1 is oriented vertically along the longitudinal direction of the corrugated resin pipe Q. It is set as the split clamping part 21 (refer FIG. 5). When this vertically split holding portion 21 is clamped on both sides of the corrugated resin pipe Q, the cutting blade P1 is fixed in a state along the longitudinal direction of the corrugated resin pipe Q (see FIG. 6). Therefore, after adjusting the protruding length of the cutting blade P1 of the cutter P, the tip of the cutting blade P1 is inserted into the side surface of the corrugated resin tube Q in a state where the side surface of the corrugated resin tube Q is sandwiched by the vertically split holding portion 21. When the cutter P is slid along the longitudinal direction of the corrugated resin tube Q, the vertically dividing operation of the corrugated resin tube Q by the cutting blade P1 can be performed accurately.

  On the other hand, when the corrugated resin tube Q is sandwiched between the fixed arms 23, the cutting and sandwiching portion 22 between the two pairs of fixed arms 23 in which the direction of the cutting blade P1 is transverse to the corrugated resin tube Q is sandwiched. (See FIG. 7). When the corrugated resin pipe Q is clamped by the cutting and clamping part 22, the cutting blade P1 is fixed laterally with respect to the longitudinal direction of the corrugated resin pipe Q (see FIG. 8). Therefore, when the tip of the cutting blade P1 is inserted into the side surface of the corrugated resin pipe Q in a state where the corrugated resin pipe Q is sandwiched by the vertically split clamping portion 21, the corrugated resin pipe Q by the cutting blade P1 is rotated. Can be accurately performed (see FIG. 7).

  Furthermore, since the fixed arm 23 extends obliquely radially toward the tip end of the cutting blade P1 with the cutting blade P1 of the cutter P fitted around the fixed body 10 as the center, the diameter of the corrugated resin tube Q is different. Even in this case, it can be clamped in the fixed arm 23 (see FIGS. 5 and 7). In the illustrated example, two types of corrugated resin pipes Q, a large-diameter resin pipe Q1 and a small-diameter resin pipe Q2, are shown, but it is possible to adapt to more diameters.

  The configuration of the fixed body 10 and the sandwiching body 20 of the present invention, the shape of the cutting blade P1 and the cutting blade holding portion P2 of the cutter P are not limited to the illustrated examples, and the gist of the present invention is not changed. Design changes in the range are free. Moreover, although demonstrated as a tool which processes the corrugated resin pipe | tube Q in this invention, it can be used also for the process of the other pipe | tube which can be cut | disconnected with the cutting blade P1.

P Cutter P1 Cutting blade P2 Cutting blade holding portion Q Corrugated resin tube Q1 Large diameter resin tube Q2 Small diameter resin tube 10 Fixed body 11 Fitting portion 12 Fixing tool 13 Screw hole 20 Holding body 21 Vertically divided holding portion 22 Cutting and holding portion 23 Fixed arm

In order to achieve the above-mentioned object, the first means in the present invention is detachably attached to the tip of a cutter P having a cutting blade P1 slidable at the tip, and a cut is formed in the longitudinal direction of the corrugated resin tube Q. A vertical cutting aid for corrugated resin pipes that fixes the direction of the cutting blade P1 to be inserted or the direction of the cutting blade P1 that cuts the corrugated resin pipe Q laterally, and is fixed to be fitted on the tip of the cutter P. The body 10 and four fixed arms extended from the front end of the fixed body 10 and extending obliquely radially toward the front end direction of the cutting blade P1 around the cutting blade P1 of the cutter P fitted around the fixed body 10 And a sandwiching body 20 that sandwiches the side surface of the corrugated resin pipe Q. When the corrugated resin pipe Q is sandwiched by selecting the fixed arm 23, the cutting blade P1 is corrugated resin pipe. Two pairs of fixed arms 2 held in a state along the longitudinal direction of Q The mutual and vertically divided sandwiching section 21, a cutting edge P1 is nipped to two pairs of fixed arms 23 mutually between the cutting clamping portion 22 in a state in which the transverse to the corrugated resin tube Q, silos clamping portion 21 or That is, the cutting and clamping part 22 is selected and the cutting blade P1 is used to process the corrugated resin pipe Q while clamping it.

In the second means, the cutter P includes a cutting blade holding portion P2 that surrounds and holds the cutting blade P1 protruding from the tip of the cutter P, and the fixed body 10 is attached to the cutting blade holding portion P2. A fitting portion 11 to be fitted and a fixture 12 provided on the side surface of the fitting portion 11 and fixing the fitting portion 11 to the side surface of the cutting blade holding portion P2 are provided.

In addition , the sandwiching body 20 includes four fixing arms 23 that extend obliquely radially toward the distal end of the cutting blade P1 with the cutting blade P1 of the cutter P fitted around the fixing body 10 as the center. Since the arm 23 is provided with the vertically sandwiching portion 21 and the cutting sandwiching portion 22, even if the diameter of the corrugated resin tube Q is changed, the four diagonally from the fixed body 10 toward the tip of the cutting blade P <b> 1. The four fixed arms 23 extended in the direction always come into contact with the side surface of the corrugated resin pipe Q. Therefore, it can be applied to a plurality of sizes of the corrugated resin pipe Q. Furthermore, when the corrugated resin pipe Q is a PF pipe, it can also be used for processing a multi-layer PFD or a single-layer PFS.

As described in claim 2 , the fixed body 10 includes a fitting portion 11 that is externally fitted to the cutting blade holding portion P2 at the tip of the cutter P, and a fitting portion 11 that is provided on a side surface of the fitting portion 11 and is used as the cutting blade holding portion P2. Since it is provided with the fixing tool 12 that is fixed to the head, even a commercially available cutter that is always provided by the operator can be easily mounted and used.

Claims (3)

  The direction of the cutting blade that is detachably attached to the tip of the cutter with a slidable cutting blade at the tip and cuts in the longitudinal direction of the corrugated resin tube or the direction of the cutting blade that cuts the corrugated resin tube horizontally A wave cutting resin pipe longitudinally cutting auxiliary tool, which is fixedly attached to the front end of the cutter, and a holding body that is provided at the front end of the fixing body and clamps a side surface of the waved resin tube. The sandwiching body includes a vertically sandwiched portion that forms a pair that fixes the cutting blade in a direction along the longitudinal direction of the corrugated resin tube, and a pair that fixes the cutting blade laterally with respect to the corrugated resin tube. For a corrugated resin pipe, wherein the cutting and clamping part is provided, and the vertically split part or the cutting and pinching part is selected and cut with a cutting blade while sandwiching the corrugated resin pipe. Vertical cutting aid.   The sandwiching body includes four fixed arms that extend obliquely in a radial direction toward the tip of the cutting blade with the cutting blade of the cutter fitted around the fixed body as a center. When the resin tube is sandwiched, the pair of fixed arms sandwiched in a state in which the cutting blade is oriented along the longitudinal direction of the corrugated resin tube is defined as the vertically sandwiched portion, and the cutting blade is The vertically-cutting auxiliary tool for corrugated resin pipes according to claim 1, wherein a pair of fixed arms sandwiched between the corrugated resin pipes in a state of being horizontally oriented is used as the cutting and clamping part.   The cutter includes a cutting blade holding portion that surrounds and holds the cutting blade that protrudes and protrudes from a tip of the cutter, and the fixed body includes a fitting portion that is fitted on the cutting blade holding portion, and a fitting portion of the fitting portion. The vertical cutting aid for corrugated resin pipes according to claim 1, further comprising: a fixture provided on a side surface and fixing the fitting portion to a side surface of the cutting blade holding portion.

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