JP5145087B2 - Protective duct cutting tool - Google Patents

Protective duct cutting tool Download PDF

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JP5145087B2
JP5145087B2 JP2008067556A JP2008067556A JP5145087B2 JP 5145087 B2 JP5145087 B2 JP 5145087B2 JP 2008067556 A JP2008067556 A JP 2008067556A JP 2008067556 A JP2008067556 A JP 2008067556A JP 5145087 B2 JP5145087 B2 JP 5145087B2
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protective duct
cutting tool
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雅弘 清水
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Mirai Kogyo KK
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Description

本発明は、壁面等に接触する当接面を備えた本体部と、相互に弾性変形することで前記本体部に着脱可能に装着される矩形外形形状のカバー部とを備え、内部に配線・配管材を収容可能な配線・配管材保護ダクトを切断する保護ダクト切断工具に関する。   The present invention includes a main body having a contact surface that comes into contact with a wall surface and the like, and a rectangular outer shape cover that is detachably attached to the main body by being elastically deformed to each other. The present invention relates to a protective duct cutting tool for cutting a wiring / piping material protective duct capable of accommodating a piping material.

配線・配管材保護ダクトや塩化ビニール製パイプなどを切断するための切断工具は種々提案されている。   Various cutting tools for cutting wiring / piping material protection ducts and vinyl chloride pipes have been proposed.

図15は、本発明の背景技術となる切断工具を例示するもので、(a)はその正面図、(b)は(a)を上方より見た所を示す上面図である。   FIGS. 15A and 15B illustrate a cutting tool as a background art of the present invention, in which FIG. 15A is a front view thereof, and FIG. 15B is a top view showing the position of FIG.

この切断工具20は、切断軸11aを中心に回動する切断刃11と、被切断材(大径パイプ)P1を受ける受け部12と、切断軸11aと同じ回動軸15aを中心に回動して、被切断材P1を切断刃11から被切断材P1の軸方向に所定間隔離れた位置で抑える保持アーム15と、これら切断刃11、受け部12等を備えた工具本体16と、切断刃11を回動切断動作させるための固定側ハンドル17Aと移動側ハンドル17Bとからなる操作部17とを備えている。   The cutting tool 20 rotates about a cutting blade 11 that rotates about a cutting shaft 11a, a receiving portion 12 that receives a workpiece (large diameter pipe) P1, and a rotating shaft 15a that is the same as the cutting shaft 11a. The holding arm 15 that holds the workpiece P1 away from the cutting blade 11 at a predetermined distance in the axial direction of the workpiece P1, the tool body 16 including the cutting blade 11, the receiving portion 12, and the like, and the cutting An operation unit 17 including a stationary handle 17A and a movable handle 17B for rotating and cutting the blade 11 is provided.

この切断工具20は、円弧形状の受け部12に対して、切断軸11aと同軸で被切断材P1を押さえる保持アーム15を設け、小さな被切断材(小径パイプ)P2も切断でき、また、保持アーム15が切断刃11から被切断材P1の軸方向に所定間隔離れた位置で被切断材P1、P2を押さえるので、切り口を直角にできる(特許文献1の段落[0022]、[0023])、という効果があるというものである。   The cutting tool 20 is provided with a holding arm 15 that presses the workpiece P1 coaxially with the cutting shaft 11a with respect to the arc-shaped receiving portion 12, and can also cut and hold a small workpiece (small diameter pipe) P2. Since the arm 15 presses the materials to be cut P1 and P2 at positions spaced apart from the cutting blade 11 in the axial direction of the material to be cut P1, the cut edges can be made at right angles (paragraphs [0022] and [0023] in Patent Document 1). The effect is that.

しかしながら、この保持アーム15を備えた切断工具20のは、上述のような変形しにくい塩化ビニール製パイプの切断には好適ではあるが、この保持アーム15は、被切断材を周方向には部分的にのみ押さえるものであり、このような切断工具20は、本体部にカバー部を弾性変形により装着するような、変形しやすい配線・配管材保護ダクトを切断するには適さないものであった。
特開2003−10571号公報(図1、図2)
However, although the cutting tool 20 provided with the holding arm 15 is suitable for cutting a polyvinyl chloride pipe which is difficult to deform as described above, the holding arm 15 is configured to partially cut the material to be cut in the circumferential direction. Such a cutting tool 20 is not suitable for cutting easily deformable wiring / pipe material protection ducts, such as attaching a cover part to the main body part by elastic deformation. .
JP 2003-10571 A (FIGS. 1 and 2)

本発明は、上記の問題を解決しようとするものであり、変形しやすいを配線・配管材保護ダクトを好適に切断することができる保護ダクト切断工具を提供することを目的とする。   An object of the present invention is to provide a protection duct cutting tool capable of suitably cutting a wiring / piping material protection duct that is easily deformed and is intended to solve the above problems.

請求項1記載の保護ダクト切断工具によれば、壁面等に接触する当接面を備えた本体部と、相互に弾性変形することで前記本体部に着脱可能に装着される矩形外形形状のカバー部とを備え、内部に配線・配管材を収容可能な配線・配管材保護ダクトを前記本体部と前記カバー部とを組み付けた状態のまま切断する保護ダクト切断工具であって、
前記本体部の当接面を受ける受け部と、この受け部に、前記本体部に前記カバー部が装着された状態で受けられた保護ダクトを前記受け部に対して位置固定された刃軸を中心に回動して切断する切断刃とを備え、
更に、切断時に前記受け部を挟んで前記刃軸と対向する位置に、前記切断刃が切断されるべき保護ダクトのカバー部に切り込む際に、その切断力によって外方向に変形をする前記カバー部の天壁を該天壁の形状に沿って前記受け部との相対的位置を保持しつつ受け止める天壁変形防止部と、前記カバー部の側壁を該側壁の形状に沿って前記受け部との相対的位置を保持しつつ受け止める側壁変形防止部とからなる変形防止部を備え,前記天壁変形防止部は、前記側壁変形防止部から前記刃軸側に向けて延設されたことを特徴とする。
According to the protective duct cutting tool according to claim 1, the main body having a contact surface that comes into contact with the wall surface and the like, and the rectangular outer shape cover that is detachably attached to the main body by elastic deformation. A protection duct cutting tool that cuts a wiring / piping material protection duct capable of accommodating wiring / piping material inside with the main body portion and the cover portion assembled ,
A receiving portion that receives the contact surface of the main body portion, and a blade shaft that is fixed to the receiving portion with a protective duct received in a state where the cover portion is attached to the main body portion. A cutting blade that pivots to the center and cuts,
Furthermore, when cutting the cover blade into the cover portion of the protective duct to be cut at a position facing the blade axis with the receiving portion sandwiched during cutting, the cover portion is deformed outward by the cutting force. A top wall deformation preventing part for receiving the top wall of the cover part while maintaining a relative position with the receiving part along the shape of the top wall, and a side wall of the cover part along the shape of the side wall. A deformation preventing portion comprising a side wall deformation preventing portion that receives and holds the relative position , wherein the top wall deformation preventing portion extends from the side wall deformation preventing portion toward the blade shaft side. To do.

請求項2記載の保護ダクト切断工具は、請求項1に従属し、変形防止部は、受け部に連続して設けられ、天壁変形防止部と側壁変形防止部とは、切断されるカバー部の反刃軸側の側壁及び天壁に沿ったL字形状をなすことを特徴とする。   The protective duct cutting tool according to claim 2 is dependent on claim 1, wherein the deformation preventing portion is provided continuously to the receiving portion, and the top wall deformation preventing portion and the side wall deformation preventing portion are covered by the cover portion. It is characterized by forming an L shape along the side wall and the top wall on the opposite blade shaft side.

請求項3記載の保護ダクト切断工具は、請求項1または2に従属し、天壁変形防止部の長さは、受け止めるべき保護ダクトのカバー部の天壁の切断長さの半分以上の長さで該カバー部を受け止める長さとなっていることを特徴とする。   The protective duct cutting tool according to claim 3 is dependent on claim 1 or 2, and the length of the top wall deformation preventing portion is not less than half the cutting length of the top wall of the cover portion of the protective duct to be received. It is the length which receives this cover part.

請求項4記載の保護ダクト切断工具は、請求項1から3のいずれかに従属し、変形防止部の天壁変形防止部と側壁変形防止部とは、刃軸に対して受け部で受けられる保護ダクトを挟んで対向した位置にある受け部軸を中心に共回動可能に設けられていることを特徴とする。   The protective duct cutting tool according to claim 4 is dependent on any one of claims 1 to 3, and the top wall deformation preventing portion and the side wall deformation preventing portion of the deformation preventing portion are received by the receiving portion with respect to the blade shaft. It is characterized in that it is provided so as to be able to co-rotate around a receiving part shaft at a position opposed to each other across the protective duct.

請求項5記載の保護ダクト切断工具は、請求項1から4のいずれかに従属し、変形防止部の天壁変形防止部と側壁変形防止部と、更に受け部とが、保護ダクト保持部として一体化され、刃軸に対して受け部で受けられる保護ダクトを挟んで対向した位置にある受け部軸を中心に共回動可能に設けられていることを特徴とする。   The protective duct cutting tool according to claim 5 is dependent on any one of claims 1 to 4, and the top wall deformation preventing portion, the side wall deformation preventing portion of the deformation preventing portion, and the receiving portion further serve as a protective duct holding portion. It is characterized by being provided so as to be capable of co-rotating around a receiving part shaft that is integrated and is opposed to the blade axis with a protective duct received by the receiving part.

請求項6記載の保護ダクト切断工具は、請求項5に従属し、保護ダクト保持部を切断刃から遠ざかるように回動させると、より小形の配線・配管材保護ダクトを受ける小受け部が使用可能となることを特徴とする。   The protective duct cutting tool according to claim 6 is dependent on claim 5, and when the protective duct holding part is rotated away from the cutting blade, a small receiving part for receiving a smaller wiring / piping material protective duct is used. It becomes possible.

請求項7記載の保護ダクト切断工具は、請求項1から4のいずれかに従属し、受け部に、より小形の配線・配管材保護ダクトを受ける小受け部が設けられていることを特徴とする。   The protective duct cutting tool according to claim 7 is dependent on any one of claims 1 to 4, wherein the receiving portion is provided with a small receiving portion for receiving a smaller wiring / piping material protective duct. To do.

請求項1記載の保護ダクト切断工具は、壁面等に接触する当接面を備えた本体部と、相互に弾性変形することで前記本体部に着脱可能に装着される矩形外形形状のカバー部とを備え、内部に配線・配管材を収容可能な配線・配管材保護ダクトを前記本体部と前記カバー部とを組み付けた状態のまま切断する保護ダクト切断工具であって、
前記本体部の当接面を受ける受け部と、この受け部に、前記本体部に前記カバー部が装着された状態で受けられた保護ダクトを前記受け部に対して位置固定された刃軸を中心に回動して切断する切断刃とを備え、
更に、切断時に前記受け部を挟んで前記刃軸と対向する位置に、前記切断刃が切断されるべき保護ダクトのカバー部に切り込む際に、その切断力によって外方向に変形をする前記カバー部の天壁を該天壁の形状に沿って前記受け部との相対的位置を保持しつつ受け止める天壁変形防止部と、前記カバー部の側壁を該側壁の形状に沿って前記受け部との相対的位置を保持しつつ受け止める側壁変形防止部とからなる変形防止部を備え,前記天壁変形防止部は、前記側壁変形防止部から前記刃軸側に向けて延設されたので、変形しやすいを配線・配管材保護ダクトを組み付けた状態のまま好適に切断することができる。
The protective duct cutting tool according to claim 1 includes a main body having a contact surface that contacts a wall surface or the like, and a rectangular outer shape cover that is detachably attached to the main body by being elastically deformed with each other. A protection duct cutting tool that cuts a wiring / piping material protection duct capable of accommodating wiring / piping material inside with the main body portion and the cover portion assembled ,
A receiving portion that receives the contact surface of the main body portion, and a blade shaft that is fixed to the receiving portion with a protective duct received in a state where the cover portion is attached to the main body portion. A cutting blade that pivots to the center and cuts,
Furthermore, when cutting the cover blade into the cover portion of the protective duct to be cut at a position facing the blade axis with the receiving portion sandwiched during cutting, the cover portion is deformed outward by the cutting force. A top wall deformation preventing part for receiving the top wall of the cover part while maintaining a relative position with the receiving part along the shape of the top wall, and a side wall of the cover part along the shape of the side wall. A deformation preventing portion comprising a side wall deformation preventing portion that receives and holds the relative position, and the top wall deformation preventing portion is extended from the side wall deformation preventing portion toward the blade shaft side, and therefore is deformed. It is possible to cut it easily with the wiring / piping material protection duct assembled .

請求項2記載の保護ダクト切断工具によれば、請求項1の効果に加え、変形防止部は、受け部に連続して設けられ、天壁変形防止部と側壁変形防止部とは、切断されるカバー部の反刃軸側の側壁及び天壁に沿ったL字形状をなすので、保護ダクトの変形を確実に防止することができる。   According to the protective duct cutting tool of the second aspect, in addition to the effect of the first aspect, the deformation preventing portion is provided continuously to the receiving portion, and the top wall deformation preventing portion and the side wall deformation preventing portion are cut. Since the cover portion has an L shape along the side wall and the top wall on the side opposite to the blade axis, deformation of the protective duct can be reliably prevented.

請求項3記載の保護ダクト切断工具によれば、請求項1または2の効果に加え、天壁変形防止部の長さは、受け止めるべき保護ダクトのカバー部の天壁の切断長さの半分以上の長さで該カバー部を受け止める長さとなっているので、保護ダクトのカバー部の変形がより確実に防止され、保護ダクトをより好適に切断することができる。   According to the protective duct cutting tool according to claim 3, in addition to the effect of claim 1 or 2, the length of the top wall deformation preventing portion is more than half of the cutting length of the top wall of the cover portion of the protective duct to be received. Therefore, the cover portion of the protective duct is more reliably prevented from being deformed, and the protective duct can be cut more suitably.

請求項4記載の保護ダクト切断工具によれば、請求項1から3のいずれかの効果に加え、変形防止部の天壁変形防止部と側壁変形防止部とは、刃軸に対して受け部で受けられる保護ダクトを挟んで対向した位置にある受け部軸を中心に共回動可能に設けられているので、切断対象である配管・配線材保護ダクトのセットがよりしやすい。   According to the protective duct cutting tool according to claim 4, in addition to the effect of any one of claims 1 to 3, the top wall deformation preventing portion and the side wall deformation preventing portion of the deformation preventing portion are receiving portions with respect to the blade shaft. Since it is provided so as to be able to co-rotate around the receiving part shaft located at the opposite position across the protective duct that can be received in step 1, it is easier to set the piping / wiring material protective duct to be cut.

請求項5記載の保護ダクト切断工具によれば、請求項1から4のいずれかの効果に加え、変形防止部の天壁変形防止部と側壁変形防止部と、更に受け部とが、保護ダクト保持部として一体化され、刃軸に対して受け部で受けられる保護ダクトを挟んで対向した位置にある受け部軸を中心に共回動可能に設けられているので、保護ダクト保持部の開口側に十分な空間がある状態で、配線・配管材保護ダクトのセットができ、そのセットがよりやりやすい。   According to the protective duct cutting tool of claim 5, in addition to the effect of any one of claims 1 to 4, the top wall deformation preventing portion, the side wall deformation preventing portion of the deformation preventing portion, and the receiving portion further include a protective duct. It is integrated as a holding part and is provided so as to be able to co-rotate around the receiving part shaft at a position opposed to the blade axis with the protective duct received by the receiving part, so that the opening of the protective duct holding part Wiring and piping material protection ducts can be set with sufficient space on the side, making it easier to set.

請求項6記載の保護ダクト切断工具によれば、請求項5の効果に加え、保護ダクト保持部を切断刃から遠ざかるように回動させると、より小形の配線・配管材保護ダクトを受ける小受け部が使用可能となるので、例えば、二列用の保護ダクトと単列用の保護ダクトなど、二種類の保護ダクトを好適に切断することができる。   According to the protective duct cutting tool according to claim 6, in addition to the effect of claim 5, when the protective duct holding part is rotated away from the cutting blade, a small receptacle for receiving a smaller wiring / piping material protective duct. Since the portion can be used, for example, two types of protective ducts such as a two-row protective duct and a single-row protective duct can be suitably cut.

請求項7記載の保護ダクト切断工具によれば、請求項1から4のいずれかの効果に加え、受け部に、より小形の配線・配管材保護ダクトを受ける小受け部が設けられているので、例えば、二列用の保護ダクトと単列用の保護ダクトなど、二種類の保護ダクトを好適に切断することができる。   According to the protective duct cutting tool of the seventh aspect, in addition to the effect of any one of the first to fourth aspects, the receiving portion is provided with a small receiving portion for receiving a smaller wiring / piping material protective duct. For example, two types of protective ducts such as a two-row protective duct and a single-row protective duct can be suitably cut.

以下に、本発明の実施の形態について、図面を用いて説明する。
<実施形態1>
図1は、本発明の保護ダクト切断工具の一例を示すもので、(a)はその正面図、(b)はその側面図、図2(a)は、図1の保護ダクト切断工具の保護ダクト保持部と切断刃とが最大限開いた状態を示す正面図、(b)は、この保護ダクト切断工具の切断対象である配線・配管材保護ダクトの一例を示す横断面図である。
Embodiments of the present invention will be described below with reference to the drawings.
<Embodiment 1>
FIG. 1 shows an example of a protective duct cutting tool according to the present invention, where (a) is a front view thereof, (b) is a side view thereof, and FIG. 2 (a) is a protection of the protective duct cutting tool of FIG. The front view which shows the state which the duct holding | maintenance part and the cutting blade opened to the maximum, (b) is a cross-sectional view which shows an example of the wiring and piping material protection duct which is the cutting object of this protection duct cutting tool.

まず、この保護ダクト切断工具10の切断対象である配線・配管材保護ダクトDWについて図2(b)を用いて説明する。   First, the wiring / pipe material protection duct DW to be cut by the protection duct cutting tool 10 will be described with reference to FIG.

この配線・配管材保護ダクトDWは、配線・配管材を二列平行させて収容可能な二列用保護ダクトであって、合成樹脂製で可撓性があり、壁面等に接触する当接面Daaを備えた本体部Daと、この本体部Daに相互の可撓性によって着脱可能に装着されるカバー部Dbと、本体部Daに収容されるべき配線・配管材とカバー部Dbとの間に必要に応じて挿入される保護・断熱のための保護材Dcとを備えている。   This wiring / piping material protection duct DW is a two-row protection duct that can accommodate two wirings / piping materials in parallel, and is made of synthetic resin and has a flexible contact surface that comes into contact with a wall surface, etc. Between the main body Da provided with Da, the cover portion Db that is detachably attached to the main body portion Da by mutual flexibility, and between the wiring / pipe material to be accommodated in the main body Da and the cover portion Db And a protective material Dc for protection and heat insulation inserted as needed.

カバー部Dbの側部分を側壁Dba、反当接面Daa側、つまり、上面部分を天壁Dbbと称する。この配線・配管材保護ダクトDWは、保護材Dcを用いる場合と、用いない場合とがあるが、いずれにしても、図2(b)のような構成であるので、外部からの力に対して、撓みやすく変形しやすいものである。   The side portion of the cover portion Db is referred to as a side wall Dba, and the anti-contact surface Daa side, that is, the upper surface portion is referred to as a top wall Dbb. The wiring / piping material protection duct DW may or may not use the protective material Dc. In any case, the wiring / piping material protective duct DW is configured as shown in FIG. Therefore, it is easy to bend and deform.

保護ダクト切断工具10は、本体部Daの当接面Daaを受ける回動受け部3と、この回動受け部3に、本体部Daにカバー部Dbが装着された状態で受けられた保護ダクトDWを受け部3に対して位置固定された刃軸1aを中心に回動して切断する切断刃1とを備えている。   The protective duct cutting tool 10 includes a rotation receiving portion 3 that receives the contact surface Daa of the main body portion Da, and a protective duct that is received by the rotation receiving portion 3 with the cover portion Db attached to the main body portion Da. A cutting blade 1 that rotates around a blade shaft 1 a that is fixed in position relative to the receiving portion 3 is cut.

その特徴は、切断時に回動受け部3を挟んで刃軸1aと対向する位置に、切断刃1が切断されるべき保護ダクトDWのカバー部Dbに切り込む際に、その切断力によって外方向に変形をするカバー部Dbの天壁Dbbを該天壁Dbbの形状に沿って受け部3との相対的位置を保持しつつ受け止める天壁変形防止部4Bと、カバー部Dbの側壁Dbaを該側壁Dbaの形状に沿って受け部3との相対的位置を保持しつつ受け止める側壁変形防止部4Aとからなる変形防止部4を備えたことにある。   The feature is that when the cutting blade 1 is cut into the cover portion Db of the protective duct DW to be cut at a position facing the blade shaft 1a with the rotation receiving portion 3 sandwiched during cutting, the cutting force is turned outward by the cutting force. A ceiling wall deformation preventing portion 4B for receiving the top wall Dbb of the cover portion Db to be deformed while holding the relative position with the receiving portion 3 along the shape of the top wall Dbb, and the side wall Dba of the cover portion Db The deformation prevention unit 4 includes a side wall deformation prevention unit 4 </ b> A that receives and retains the relative position to the receiving unit 3 along the shape of Dba.

本発明では、この相対的に形状変化しない回動側受け部3と変形防止部4とが特徴であり、両者を纏めて、保護ダクト保持部5と称し、その詳細は後述する。一方、工具本体6側は、例えば、特開2005−312522号公報(本出願人によるもの)に記載された保護ダクト切断工具と同様なので詳細は省略するが、以下のような構成である。   The present invention is characterized by the rotation-side receiving portion 3 and the deformation preventing portion 4 that do not change in shape relatively, and collectively referred to as a protective duct holding portion 5, the details of which will be described later. On the other hand, since the tool body 6 side is the same as the protective duct cutting tool described in, for example, Japanese Patent Application Laid-Open No. 2005-312522 (by the applicant), the details are omitted, but the configuration is as follows.

刃軸1aには切断刃1を開方向に付勢するスプリング1bが設けられ、切断刃1の刃軸1aを挟んで反対側には、順次切断刃1を回動させるためのラチェット歯1cが設けられている。ラチェットレバー1dは、ラチェット歯1cに噛み合って、切断刃1の回動位置をその都度保持するものであると共に、その噛合いを解放することができるものである。   The blade shaft 1a is provided with a spring 1b that urges the cutting blade 1 in the opening direction. On the opposite side of the blade shaft 1a of the cutting blade 1, ratchet teeth 1c for sequentially rotating the cutting blade 1 are provided. Is provided. The ratchet lever 1d meshes with the ratchet teeth 1c to hold the rotational position of the cutting blade 1 each time and can release the meshing.

ロックレバー1eも、ラチェット歯1cに噛み合って、切断刃1の回動位置をその都度保持するものであると共に、その噛合いを解放することができるものである。操作部7は、固定側の固定ハンドル7Aと、ハンドル軸7aを中心に回動する回動ハンドル7Bとを備えている。   The lock lever 1e is also engaged with the ratchet teeth 1c to hold the rotational position of the cutting blade 1 each time and can release the engagement. The operation unit 7 includes a fixed handle 7A on the fixed side and a rotating handle 7B that rotates about the handle shaft 7a.

作動側ラチェットレバー7bは、回動ハンドル7Bの操作に伴い、図2の切断刃1の全開状態から、順にラチェット歯1cを反時計周りに回動させるものである。その際、固定ハンドル7Aの内側のラチェットレバー1dは、切断刃1が時計周りに戻らないようにしている。   The operation side ratchet lever 7b rotates the ratchet teeth 1c counterclockwise in order from the fully opened state of the cutting blade 1 of FIG. 2 in accordance with the operation of the rotation handle 7B. At that time, the ratchet lever 1d inside the fixed handle 7A prevents the cutting blade 1 from returning clockwise.

また、固定ハンドル7Aの外側のロックレバー1eは、内側のラチェットレバー1dによるロックが効かない程度に切断刃1が反時計回りに回動した際のロックの役割をしている。なお、フックレバー7cは、この保護ダクト切断工具10の不使用時に、固定ハンドル7Aに対して回動ハンドル7Bを引っ掻けて、操作部7の閉状態を維持するためのものである。   Further, the outer lock lever 1e of the fixed handle 7A serves as a lock when the cutting blade 1 is rotated counterclockwise to such an extent that the inner ratchet lever 1d cannot be locked. The hook lever 7c is for scratching the rotating handle 7B with respect to the fixed handle 7A and maintaining the closed state of the operation unit 7 when the protective duct cutting tool 10 is not used.

このような構成で、この保護ダクト切断工具10は、切断刃1を、図2の全開の状態から図1の全閉の状態までこれらの図上で反時計周りに回動させ、また、ラチェットレバー1d、ロックレバー1e等の操作により、図2の全開状態とすることができるものである。   With such a configuration, the protective duct cutting tool 10 rotates the cutting blade 1 counterclockwise on these drawings from the fully open state of FIG. 2 to the fully closed state of FIG. By operating the lever 1d, the lock lever 1e, etc., the fully opened state of FIG. 2 can be obtained.

保護ダクト保持部5は、回動側受け部3と変形防止部4とを全体として「コ」字状、より具体的には、この保護ダクト切断工具10の主たる切断対象の配線・配管材保護ダクトDWである二列形保護ダクト(図3参照)の当接面Daa、側壁Dba、天壁Dbbに接触する形状となっており、本体側受け部2の刃軸1aと対峙する端部分に設けられた受け部軸5aを中心として、全体として回動するようになっている。   The protective duct holding part 5 is a "U" shape as a whole of the rotation side receiving part 3 and the deformation preventing part 4, more specifically, the wiring / pipe material protection of the main cutting target of the protective duct cutting tool 10 It has a shape in contact with the contact surface Daa, the side wall Dba, and the top wall Dbb of the double-row protection duct (see FIG. 3) that is the duct DW, and the end portion facing the blade shaft 1a of the main body side receiving portion 2 As a whole, it is configured to rotate around the provided receiving shaft 5a.

つまり、変形防止部4の天壁変形防止部4Bと側壁変形防止部4Aと、更に回動側受け部3とが、保護ダクト保持部5として一体化され、刃軸1aに対して回動受け部3で受けられる保護ダクトDWを挟んで対向した位置にある受け部軸5aを中心に共回動可能に設けられている。   That is, the top wall deformation preventing part 4B, the side wall deformation preventing part 4A of the deformation preventing part 4 and the rotating side receiving part 3 are integrated as a protective duct holding part 5, and are rotated with respect to the blade shaft 1a. It is provided so as to be capable of co-rotating around a receiving part shaft 5a located at a position facing the protective duct DW received by the part 3.

また、配線・配管材保護ダクト保持部5は、図1(b)に示すように、受け部軸5aの近傍では連結されてはいるが、他の部分では、切断刃1を間に通過させるような両側一対の二股構成となっていて、これにより、配線・配管材保護ダクト保持部5に配線・配管材保護ダクトDWを保持しながら、切断刃1で切断できるようになっている。   Further, as shown in FIG. 1 (b), the wiring / piping material protection duct holding part 5 is connected in the vicinity of the receiving part shaft 5a, but allows the cutting blade 1 to pass between the other parts. Such a pair of bifurcated configurations on both sides allows the cutting blade 1 to cut while holding the wiring / pipe material protection duct DW in the wiring / pipe material protection duct holding portion 5.

これらの切断刃1の刃軸1aを中心とする回動と、保護ダクト保持部5の受け部軸5aを中心とする回動との関係は、図2(a)の全開状態では相互に離れて重なる部分はなく、図1の全閉状態では、切断刃1は、二股状態の配線・配管材保護ダクト保持部5に入り込んで、更に、二股状態となっている本体側受け部2の位置まで達するようになるものである。   The relationship between the rotation of the cutting blade 1 about the blade shaft 1a and the rotation of the protective duct holding portion 5 about the receiving shaft 5a is separated from each other in the fully opened state of FIG. In the fully closed state of FIG. 1, the cutting blade 1 enters the bifurcated wiring / piping material protection duct holding part 5 and further the position of the main body side receiving part 2 in the bifurcated state. It will reach up to.

本体側受け部2は、回動側受け部3を介して配線・配管材保護ダクトDWを受け止めるもので、その刃軸1aに近い側には、より小さい配線・配管材保護ダクトDS(図10参照)を受ける小受け部2aが設けられている。   The main body side receiving portion 2 receives the wiring / piping material protection duct DW via the rotating side receiving portion 3, and a smaller wiring / piping material protection duct DS (FIG. 10) is provided on the side close to the blade shaft 1a. A small receiving portion 2a for receiving a reference) is provided.

変形防止部4の側壁変形防止部4Aは、回動側受け部3から直角に立ち上がっており、天壁変形防止部4Bは、この側壁変形防止部4Aに傾斜部分を経て直角方向に連設され、回動側受け部3に平行なものとなっている。   The side wall deformation prevention part 4A of the deformation prevention part 4 rises at a right angle from the rotating side receiving part 3, and the top wall deformation prevention part 4B is connected to the side wall deformation prevention part 4A in a right angle direction through an inclined portion. The rotating side receiving portion 3 is parallel to the rotating side receiving portion 3.

つまり、変形防止部4は、回動側受け部3に連続して設けられ、天壁変形防止部4Bと側壁変形防止部4Aとは、切断されるカバー部Dbの反刃軸1a側の側壁Dba及び天壁Dbbに沿ったL字形状をなしている。更に、この保護ダクト保持部5は、側壁変形防止部4Aから天壁変形防止部4Bへの傾斜連設部分を含めて、切断対象である配線・配管材保護ダクトDWの外形形状に沿ったものとなっており、変形防止性を高めている。   That is, the deformation preventing part 4 is provided continuously to the rotation side receiving part 3, and the top wall deformation preventing part 4B and the side wall deformation preventing part 4A are the side walls on the opposite blade shaft 1a side of the cover part Db to be cut. It is L-shaped along Dba and the top wall Dbb. Furthermore, the protective duct holding part 5 is in line with the outer shape of the wiring / pipe material protective duct DW to be cut, including the inclined continuous part from the side wall deformation preventing part 4A to the top wall deformation preventing part 4B. Therefore, the deformation preventing property is enhanced.

これより、この保護ダクト切断工具10を用いて、配線・配管材保護ダクトDW(二列形保護ダクト)を切断する状態を、図3から図9を用いて説明する。なお、これより既に説明した部分と同じ部分については同じ符号を付して重複説明を省略する。   The state of cutting the wiring / pipe material protection duct DW (double-row protection duct) using the protection duct cutting tool 10 will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected about the part same as the part already demonstrated from this, and duplication description is abbreviate | omitted.

図3は、図1の保護ダクト切断工具により配線・配管材保護ダクトを切断する態様を示すもので、(a)は開いた保護ダクト保持部に配線・配管材保護ダクトをセットした状態を示す斜視図、(b)は(a)の状態から保護ダクト保持部を閉じて、切断する前の状態を示す斜視図である。   FIG. 3 shows a mode in which the wiring / piping material protection duct is cut by the protective duct cutting tool of FIG. 1, and FIG. 3 (a) shows a state in which the wiring / piping material protection duct is set in the opened protective duct holding portion. A perspective view and (b) are perspective views which show a state before closing and cutting a protection duct holding part from the state of (a).

まず、切断する際には、保護ダクト保持部5と切断刃1とを全開した状態で、配線・配管材保護ダクトDWを保護ダクト保持部5の開口側から保護ダクト保持部5に入れる。この際、保護ダクト保持部5と切断刃1とは大きく空間を置いて離れているので、この空間を用いて長さのある配線・配管材保護ダクトDWを、その長手軸方向に直交する方向に移動させて、簡単に入れることができる。   First, when cutting, the wiring / pipe material protection duct DW is inserted into the protection duct holding part 5 from the opening side of the protection duct holding part 5 with the protection duct holding part 5 and the cutting blade 1 fully opened. At this time, since the protective duct holding portion 5 and the cutting blade 1 are separated from each other with a large space, a long wiring / piping material protective duct DW is used in the direction perpendicular to the longitudinal axis direction using this space. You can easily put it in.

つまり、周囲の空間に、配線・配管材保護ダクトDWを長手軸方向に移動させる空間がない場合でも、切断へのセット作業ができる。また、この際、本体部Daの当接面Daaが回動側受け部3に、カバー部Dbの天壁Dbbと側壁Dbaが変形防止部4に接触して保持される。   That is, even when there is no space for moving the wiring / piping material protection duct DW in the longitudinal axis direction in the surrounding space, the setting operation for cutting can be performed. At this time, the contact surface Daa of the main body portion Da is held in contact with the rotating side receiving portion 3, and the top wall Dbb and the side wall Dba of the cover portion Db are held in contact with the deformation preventing portion 4.

ついで、配線・配管材保護ダクトDWを収容した保護ダクト保持部5を図3(b)のように閉じ状態とし、回動ハンドル7Bの回動操作を繰り返すと、順次、切断刃1が回動して配線・配管材保護ダクトDWに近づき、接触する。図4は、図3(b)の状態を、配線・配管材保護ダクトの手前側から見た正面図である。   Next, when the protective duct holding part 5 accommodating the wiring / piping material protective duct DW is closed as shown in FIG. 3B and the rotating operation of the rotating handle 7B is repeated, the cutting blade 1 is sequentially rotated. Then approach the wiring / piping material protection duct DW and come into contact with it. FIG. 4 is a front view of the state shown in FIG. 3B as viewed from the front side of the wiring / piping material protection duct.

ここで、図4に示すように、天壁変形防止部4Bの長さ4Lは、受け止めるべき保護ダクトDWのカバー部Dbの天壁Dbbの切断長さDLの半分以上の長さでカバー部Dbを受け止める長さとなっている。このようにすると、保護ダクトDWのカバー部Dbの変形がより確実に防止され、保護ダクトDWをより好適に切断することができる。   Here, as shown in FIG. 4, the length 4L of the top wall deformation preventing portion 4B is longer than half the cutting length DL of the top wall Dbb of the cover portion Db of the protective duct DW to be received. It is the length to catch. If it does in this way, a deformation | transformation of the cover part Db of the protection duct DW will be prevented more reliably, and the protection duct DW can be cut | disconnected more suitably.

また、この天壁Dbbの切断長さDLの半分の部分というのは、切断刃1の切断力が作用した際に、最も大きく外側へ湾曲して変形しようとする部分であり、天壁変形防止部4Bの長さ4Lをその部分に達するようにすることで、変形防止機能がより良く発揮されるものである。   Further, the half portion of the cutting length DL of the ceiling wall Dbb is a portion that is most likely to bend and deform outward when the cutting force of the cutting blade 1 is applied. By preventing the length 4L of the portion 4B from reaching that portion, the deformation preventing function is better exhibited.

図5は、図4の状態から更に切断刃が配線・配管材保護ダクトに切り込んだ状態を示す正面図、図6は、図5の状態から更に切断刃が配線・配管材保護ダクトに3分の1程度切り込んだ状態を示す正面図、図7は、図6の状態から更に切断刃が配線・配管材保護ダクトに3分の2程度切り込んだ状態を示す正面図、図8は、切断刃による配線・配管材保護ダクトの切断が完了した状態を示す正面図である。   FIG. 5 is a front view showing a state in which the cutting blade is further cut into the wiring / piping material protection duct from the state of FIG. 4, and FIG. 6 is a three-minute view of the cutting blade further into the wiring / piping material protection duct from the state of FIG. FIG. 7 is a front view showing a state where the cutting blade is further cut into the wiring / pipe material protection duct by about two thirds from the state of FIG. 6, and FIG. 8 is a cutting blade. It is a front view which shows the state which the cutting | disconnection of the wiring and piping material protection duct by completed.

ここで、図5の状態に注目されたい。変形防止部4(側壁変形防止部4Aと天壁変形防止部4B)がカバー部Dbをその形状に合わせてしっかり変形しないように受けているので、それがなければ、切断刃1の力を受けて外側へ移動・変形しようとするカバー部Dbの移動・変形を阻止している。   Here, attention should be paid to the state of FIG. Since the deformation preventing portion 4 (the side wall deformation preventing portion 4A and the top wall deformation preventing portion 4B) receives the cover portion Db so as not to be deformed firmly in accordance with its shape, it receives the force of the cutting blade 1 without it. Thus, the movement / deformation of the cover part Db which is going to move / deform outward is prevented.

また、図6の状態にも注目されたい。更に、切断刃1の回動が進んで、保護材Dcを切断し、本体部Daの上部部分を切断し始めても、この部分がそれほど変形していない。これは、本体部Daの当接面Daaが回動側受け部3で受けられ、カバー部Dbの側壁Dbaと天壁Dbbとが変形防止部4(側壁変形防止部4Aと天壁変形防止部4B)で受け止められているためと思われる。   Note also the state of FIG. Further, even when the cutting blade 1 is further rotated, the protective material Dc is cut, and the upper portion of the main body Da is started to be cut. This is because the contact surface Daa of the main body portion Da is received by the rotation side receiving portion 3, and the side wall Dba and the top wall Dbb of the cover portion Db are the deformation preventing portion 4 (the side wall deformation preventing portion 4A and the top wall deformation preventing portion. This is probably because it was accepted in 4B).

図9(a)は、図1の保護ダクト切断工具で切断した配線・配管材保護ダクトを示す外観斜視図、(b)は、変形防止部を備えていない保護ダクト切断工具で切断した配線・配管材保護ダクトを示す外観斜視図である。   9A is an external perspective view showing a wiring / piping material protection duct cut with the protective duct cutting tool of FIG. 1, and FIG. 9B is a wiring / cutting wire cut with a protective duct cutting tool not equipped with a deformation prevention portion. It is an external appearance perspective view which shows a piping material protection duct.

本発明の保護ダクト保持部5(変形防止部4)を備えた保護ダクト切断工具10によって、切断した図9(a)の配線・配管材保護ダクトDWは、その本体部Da、カバー部Db、保護材Dcのいずれも配線・配管材保護ダクトDWの軸方向に直角に凹凸無く切断されている。   The wiring / pipe material protection duct DW of FIG. 9 (a) cut by the protection duct cutting tool 10 provided with the protection duct holding part 5 (deformation prevention part 4) of the present invention has its main body part Da, cover part Db, All of the protective materials Dc are cut without unevenness at right angles to the axial direction of the wiring / pipe material protective duct DW.

これに比べ、このような変形防止部4のない保護ダクト切断工具で切断した配線・配管材保護ダクトDWは、本出願人の試験によれば、図9(b)に示すように、その本体部Da、カバー部Db、保護材Dcの切断面が凸凹になっていて、このままでは、使用することができない。   Compared to this, the wiring / piping material protection duct DW cut by the protection duct cutting tool without the deformation preventing portion 4 is, as shown in FIG. The cut surfaces of the portion Da, the cover portion Db, and the protective material Dc are uneven, and cannot be used as they are.

また、この切断過程から解るように、この保護ダクト切断工具10によれば、切断中、切断刃1に回動側受け部3が押され、したがって、これに共回動する変形防止部4も、間違っても動くことがなく、配線・配管材保護ダクトDWを受け止め、その移動・変形を防止することができる。   Further, as can be seen from this cutting process, according to this protective duct cutting tool 10, the rotation side receiving portion 3 is pushed by the cutting blade 1 during cutting, and therefore the deformation preventing portion 4 that rotates together with this is also provided. Even if it is wrong, it does not move, and it can receive the wiring / pipe material protection duct DW and prevent its movement / deformation.

つまり、この保護ダクト切断工具10によれば、切断時に配線・配管材保護ダクトDWの変形が防止されて、変形しやすいを配線・配管材保護ダクトを好適に切断することができる。   That is, according to the protective duct cutting tool 10, the wiring / pipe material protection duct DW is prevented from being deformed at the time of cutting, and the wiring / pipe material protection duct can be suitably cut while being easily deformed.

更に、変形防止部4(側壁変形防止部4Aと天壁変形防止部4B)は配線・配管材保護ダクトDWの側壁Dbaと天壁Dbbの形状に対応したL字状のものであるので、その変形を確実に防止することができる。一方、この例では、変形防止部4と回動受け部3とは一体化されて保護ダクト保持部5として共回動するが、後述するように、このような共回動は、保護ダクト保持部5への配線・配管材保護ダクトDW、DSのセットをしやすくするためのもので、変形を防止するための必須の要件ではない。   Further, since the deformation preventing portion 4 (side wall deformation preventing portion 4A and top wall deformation preventing portion 4B) is L-shaped corresponding to the shape of the side wall Dba and the top wall Dbb of the wiring / pipe material protection duct DW, Deformation can be reliably prevented. On the other hand, in this example, the deformation preventing unit 4 and the rotation receiving unit 3 are integrated and co-rotate as a protective duct holding unit 5. This is for facilitating the setting of the wiring / piping material protection ducts DW and DS to the section 5, and is not an essential requirement for preventing deformation.

図10(a)は図3に示した配線・配管材保護ダクトより小型の配線・配管材保護ダクトを示す外観斜視図、(b)は(a)の配線・配管材保護ダクトを図1の保護ダクト切断工具で切断する場合の態様を示す正面図である。   10A is an external perspective view showing a smaller wiring / piping material protection duct than the wiring / piping material protection duct shown in FIG. 3, and FIG. 10B is a perspective view of the wiring / piping material protection duct of FIG. It is a front view which shows the aspect in the case of cut | disconnecting with a protection duct cutting tool.

図10(a)の配線・配管材保護ダクトDSは、図3の配線・配管材保護ダクトDWに比べ、配線・配管材を単列収容する単列用保護ダクトであり、同様の合成樹脂製であり、可撓性があるが、その可撓性の程度は小さいものであり、同様な本体部Dd、カバー部De、保護材Dfを備えている。   The wiring / piping material protection duct DS in FIG. 10A is a single-row protection duct that accommodates the wiring / piping material protection duct DW in FIG. 3, and is made of the same synthetic resin. Although it is flexible, the degree of flexibility is small, and it includes the same main body portion Dd, cover portion De, and protective material Df.

このような小型の配線・配管材保護ダクトDSを切断する場合は、保護ダクト保持部5を開いて、本体側受け部2を覗かせ、その小受け部2aに配線・配管材保護ダクトDSを図10(b)で示すように載せて、切断する。この場合、変形防止部のようなものがなくとも、配線・配管材保護ダクトDSの撓みが少ないので、その切断面は、その長手軸方向に直角で、凹凸のないものとなる。   When cutting such a small wiring / piping material protection duct DS, the protective duct holding portion 5 is opened, the main body side receiving portion 2 is looked into, and the wiring / piping material protecting duct DS is attached to the small receiving portion 2a. Place and cut as shown in FIG. In this case, even if there is no such thing as a deformation preventing part, the wiring / piping material protection duct DS is less bent, so that its cut surface is perpendicular to the longitudinal axis direction and has no irregularities.

つまり、この保護ダクト切断工具10によれば、大きくてより撓みやすく変形しやすい配線・配管材保護ダクトDWは、保護ダクト保持部(変形防止部4)5を用いることで好適に、小さくて撓みの少ない配線・配管材保護ダクトDSは、配線・配管材保護ダクト保持部(変形防止部)5を用いることなく、小受け部2aで好適に切断することができる。   In other words, according to this protective duct cutting tool 10, the wiring / pipe material protective duct DW that is large and more easily bent and deformed is preferably smaller and bent by using the protective duct holding part (deformation preventing part 4). The wiring / piping material protection duct DS with a small amount can be suitably cut by the small receiving portion 2a without using the wiring / piping material protection duct holding portion (deformation preventing portion) 5.

なお、変形防止部4(側壁変形防止部4Aと天壁変形防止部4B)の形状は、この例示のものに限定されず、切断対象の外径形状に合わせて、曲線を含むものであってもよい。つまり、例えば、天壁が緩やかな突曲面の場合にはそれに合わせた曲面とするのがよく、側壁と天壁との間が曲面で連結されている場合には、それに合わせたコーナー部分を設けるのがよい。   In addition, the shape of the deformation | transformation prevention part 4 (side wall deformation | transformation prevention part 4A and the ceiling wall deformation | transformation prevention part 4B) is not limited to this thing of illustration, A curve is included according to the outer-diameter shape of cutting object. Also good. In other words, for example, if the top wall is a gently protruding surface, it should be a curved surface that matches that, and if the side wall and the top wall are connected by a curved surface, a corner portion corresponding to that is provided. It is good.

<実施形態2>
図11は、本発明の保護ダクト切断工具の他例を示すもので、(a)はその正面図、(b)はその側面図である。
<Embodiment 2>
FIG. 11 shows another example of the protective duct cutting tool of the present invention, where (a) is a front view thereof and (b) is a side view thereof.

この保護ダクト切断工具10Aは、図1の保護ダクト切断工具10に比べ、保護ダクト保持部5Aの回動側受け部3Aが短寸のものとなり、切断時には、本体側受け部2Aと共同して、配線・配管材保護ダクトDWの当接面Daaを受けるようになっている点が異なっている。   This protective duct cutting tool 10A is shorter than the protective duct cutting tool 10 of FIG. 1 in that the rotational side receiving part 3A of the protective duct holding part 5A is short, and in cutting, in cooperation with the main body side receiving part 2A. The difference is that the contact surface Daa of the wiring / piping material protection duct DW is received.

また、小受け部2bも、本体側受け部2Aが、回動側受け部3Aと同一面を形成するように、配線・配管材保護ダクトDW側により高くなっているのに対応して、切断工具10の小受け部2Aがより深いものとなっている点が異なっている。   Also, the small receiving portion 2b is cut in accordance with the fact that the main body side receiving portion 2A is higher on the wiring / pipe material protection duct DW side so as to form the same surface as the rotating side receiving portion 3A. The difference is that the small receiving portion 2A of the tool 10 is deeper.

このような構成の保護ダクト切断工具10Aによれば、図1〜図10の保護ダクト切断工具10と同様に、変形防止部4を備え、回動側受け部3Aは共回動するので、保護ダクト切断工具10と同様の効果を発揮することができる。   According to the protective duct cutting tool 10A having such a configuration, as with the protective duct cutting tool 10 of FIGS. 1 to 10, the deformation prevention unit 4 is provided and the rotating side receiving unit 3A rotates together. The same effect as the duct cutting tool 10 can be exhibited.

<実施形態3>
図12は、本発明の保護ダクト切断工具の他例を示すもので、(a)はその正面図、(b)はその側面図、図13(a)、(b)は、図12の保護ダクト切断工具の使用態様を示す正面図である。
<Embodiment 3>
12A and 12B show another example of the protective duct cutting tool of the present invention. FIG. 12A is a front view thereof, FIG. 12B is a side view thereof, and FIGS. 13A and 13B are protection views of FIG. It is a front view which shows the usage condition of a duct cutting tool.

この保護ダクト切断工具10Bは、図1の保護ダクト切断工具10に比べ、保護ダクト保持部5Bの回動側受け部が無くなり、切断時には、本体側受け部2Bが、配線・配管材保護ダクトDWの当接面Daaを受け、小受け部が設けられていない点が異なっている。   Compared with the protective duct cutting tool 10 of FIG. 1, the protective duct cutting tool 10B has no rotating side receiving portion of the protective duct holding portion 5B, and at the time of cutting, the main body side receiving portion 2B is connected to the wiring / pipe material protective duct DW. Is different in that no small receiving portion is provided.

このような構成の保護ダクト切断工具10Aによれば、図1〜図10の保護ダクト切断工具10と同様に、変形防止部4を備え、図13(a)に示すように、保護ダクト保持部5Bは保護ダクトDWを受けた状態で回動するので、保護ダクト切断工具10と同様の効果を発揮することができる。   According to the protective duct cutting tool 10A having such a configuration, similarly to the protective duct cutting tool 10 of FIGS. 1 to 10, the deformation prevention unit 4 is provided, and as shown in FIG. Since 5B rotates in the state which received the protection duct DW, the effect similar to the protection duct cutting tool 10 can be exhibited.

また、小型の配線・配管材保護ダクトDSについては、図13(b)に示すように、変形防止部4にそのカバー部Deが接するようにすることで、好適に切断することができる。   Further, as shown in FIG. 13B, the small wiring / piping material protection duct DS can be suitably cut by making the cover portion De contact the deformation preventing portion 4.

<実施形態3>
図14は、本発明の保護ダクト切断工具の他例を示すもので、(a)はその正面図、(b)はその側面図である。
<Embodiment 3>
FIG. 14 shows another example of the protective duct cutting tool of the present invention, in which (a) is a front view thereof and (b) is a side view thereof.

この保護ダクト切断工具10Cは、図12の保護ダクト切断工具10Bに比べ、保護ダクト保持部5Cのが、本体側受け部2Cに対して、固定手段5bにより回動しないように固定されている点が異なっている。   Compared to the protective duct cutting tool 10B of FIG. 12, the protective duct cutting tool 10C is fixed so that the protective duct holding part 5C is not rotated by the fixing means 5b with respect to the main body side receiving part 2C. Is different.

このような構成の保護ダクト切断工具10によれば、図1〜図10の保護ダクト切断工具10と同様に、変形防止部4を備えているので、保護ダクト切断工具10と同様の変形防止効果を発揮することができる。   According to the protective duct cutting tool 10 having such a configuration, the deformation preventing portion 4 is provided in the same manner as the protective duct cutting tool 10 of FIGS. Can be demonstrated.

一方、保護ダクト保持部5Cは回動しないので、配線・配管材保護ダクトDW、DSをセットする際には、保護ダクトDW、DSをその軸方向に移動して、保護ダクト保持部5C内に入れるようにする必要がある。   On the other hand, since the protective duct holding part 5C does not rotate, when setting the wiring / pipe material protective ducts DW, DS, the protective ducts DW, DS are moved in the axial direction thereof, and the protective duct holding part 5C is moved into the protective duct holding part 5C. It is necessary to put in.

本発明の保護ダクト切断工具は、上記の実施態様に限定されず、特許請求の範囲に記載された範囲、実施態様の範囲で、種々の変形例、組み合わせが可能であり、本発明の技術的範囲には、これらの変形例、組み合わせも含まれるものである。   The protective duct cutting tool of the present invention is not limited to the above-described embodiments, and various modifications and combinations are possible within the scope and the scope of the embodiments described in the claims. The range includes these modifications and combinations.

本発明の保護ダクト切断工具は、変形しやすいを配線・配管材保護ダクトを好適に切断することができることが要請される産業上の分野に用いることができる。   The protective duct cutting tool of the present invention can be used in industrial fields where it is required to be able to suitably cut the wiring / pipe material protective duct, which is easily deformed.

本発明の保護ダクト切断工具の一例を示すもので、(a)はその正面図、(b)はその側面図An example of the protection duct cutting tool of this invention is shown, (a) is the front view, (b) is the side view. (a)は、図1の保護ダクト切断工具の保護ダクト保持部と切断刃とが最大限開いた状態を示す正面図、(b)は、この保護ダクト切断工具の切断対象である配線・配管材保護ダクトの一例を示す横断面図(A) is a front view showing a state where the protective duct holding portion and the cutting blade of the protective duct cutting tool of FIG. 1 are opened to the maximum extent, and (b) is a wiring / piping to be cut by this protective duct cutting tool. Cross-sectional view showing an example of material protection duct 図1の保護ダクト切断工具により配線・配管材保護ダクトを切断する態様を示すもので、(a)は開いた保護ダクト保持部に配線・配管材保護ダクトをセットした状態を示す斜視図、(b)は(a)の状態から保護ダクト保持部を閉じて、切断する前の状態を示す斜視図1 is a perspective view showing a state in which a wiring / piping material protection duct is set in an opened protective duct holding portion, FIG. b) is a perspective view showing a state before the protective duct holding part is closed and cut from the state of (a). 図3(b)の状態を、配線・配管材保護ダクトの手前側から見た正面図3B is a front view of the state of FIG. 3B viewed from the front side of the wiring / piping material protection duct. 図4の状態から更に切断刃が配線・配管材保護ダクトに切り込んだ状態を示す正面図FIG. 4 is a front view showing a state in which the cutting blade is further cut into the wiring / piping material protection duct from the state of FIG. 図5の状態から更に切断刃が配線・配管材保護ダクトに3分の1程度切り込んだ状態を示す正面図FIG. 5 is a front view showing a state where the cutting blade further cuts into the wiring / piping material protection duct by about one third from the state of FIG. 図6の状態から更に切断刃が配線・配管材保護ダクトに3分の2程度切り込んだ状態を示す正面図FIG. 6 is a front view showing a state where the cutting blade further cuts into the wiring / piping material protection duct by about two thirds from the state of FIG. 切断刃による配線・配管材保護ダクトの切断が完了した状態を示す正面図Front view showing the state where cutting of the wiring / piping material protection duct using the cutting blade is completed (a)は、図1の保護ダクト切断工具で切断した配線・配管材保護ダクトを示す外観斜視図、(b)は、変形防止部を備えていない保護ダクト切断工具で切断した配線・配管材保護ダクトを示す外観斜視図(A) is an external perspective view showing a wiring / piping material protection duct cut with the protective duct cutting tool of FIG. 1, and (b) is a wiring / piping material cut with a protective duct cutting tool not equipped with a deformation preventing portion. External perspective view showing protective duct (a)は図3に示した配線・配管材保護ダクトより小型の配線・配管材保護ダクトを示す外観斜視図、(b)は(a)の配線・配管材保護ダクトを図1の保護ダクト切断工具で切断する場合の態様を示す正面図(A) is an external perspective view showing a wiring / piping material protection duct that is smaller than the wiring / piping material protection duct shown in FIG. 3, and (b) is a wiring / piping material protection duct of FIG. Front view showing a mode when cutting with a cutting tool 本発明の保護ダクト切断工具の他例を示すもので、(a)はその正面図、(b)はその側面図The other example of the protection duct cutting tool of this invention is shown, (a) is the front view, (b) is the side view. 本発明の保護ダクト切断工具の他例を示すもので、(a)はその正面図、(b)はその側面図The other example of the protection duct cutting tool of this invention is shown, (a) is the front view, (b) is the side view. (a)、(b)は、図12の保護ダクト切断工具の使用態様を示す正面図(A), (b) is a front view which shows the use aspect of the protection duct cutting tool of FIG. 本発明の保護ダクト切断工具の他例を示すもので、(a)はその正面図、(b)はその側面図The other example of the protection duct cutting tool of this invention is shown, (a) is the front view, (b) is the side view. 本発明の背景技術となる切断工具を例示するもので、(a)はその正面図、(b)は(a)を上方より見た所を示す上面図The cutting tool used as the background art of this invention is illustrated, (a) is the front view, (b) is the top view which shows the place which looked at (a) from upper direction

符号の説明Explanation of symbols

1 切断刃
1a 刃軸
2〜2C 本体側受け部
2a 小受け部
3〜3A 回動側受け部(受け部)
3a 小受け部
4 変形防止部
4A 側壁変形防止部
4B 天壁変形防止部
4L 天壁変形防止部の長さ
5〜5C 保護ダクト保持部
5a 受け部軸
6 工具本体
7 操作部
10〜10C 保護ダクト切断工具
Da 本体部
Daa 当接面
Db カバー部
Dba 側壁
Dbb 天壁
Dc 保護材
DL 天壁の切断長さ
DW 配線・配管材保護ダクト
DS 配線・配管材保護ダクト
1 Cutting blade 1a Blade axis
2-2C Body side receiving part 2a Small receiving part 3-3A Rotating side receiving part (receiving part)
3a Small receiving part 4 Deformation prevention part 4A Side wall deformation prevention part 4B Top wall deformation prevention part
4L Length of top wall deformation prevention part 5-5C Protection duct holding part 5a Receiving part shaft 6 Tool body 7 Operation part
10-10C Protective duct cutting tool Da Body
Daa contact surface Db cover part
Dba side wall
Dbb sky wall
Dc Protective material DL Top wall cut length DW Wiring / piping material protection duct DS Wiring / piping material protection duct

Claims (7)

壁面等に接触する当接面を備えた本体部と、相互に弾性変形することで前記本体部に着脱可能に装着される矩形外形形状のカバー部とを備え、内部に配線・配管材を収容可能な配線・配管材保護ダクトを前記本体部と前記カバー部とを組み付けた状態のまま切断する保護ダクト切断工具であって、
前記本体部の当接面を受ける受け部と、この受け部に、前記本体部に前記カバー部が装着された状態で受けられた保護ダクトを前記受け部に対して位置固定された刃軸を中心に回動して切断する切断刃とを備え、
更に、切断時に前記受け部を挟んで前記刃軸と対向する位置に、前記切断刃が切断されるべき保護ダクトのカバー部に切り込む際に、その切断力によって外方向に変形をする前記カバー部の天壁を該天壁の形状に沿って前記受け部との相対的位置を保持しつつ受け止める天壁変形防止部と、前記カバー部の側壁を該側壁の形状に沿って前記受け部との相対的位置を保持しつつ受け止める側壁変形防止部とからなる変形防止部を備え
前記天壁変形防止部は、前記側壁変形防止部から前記刃軸側に向けて延設されたことを特徴とする保護ダクト切断工具。
It has a main body with a contact surface that comes into contact with the wall surface and the like, and a cover with a rectangular outer shape that can be detachably attached to the main body by elastically deforming each other, and accommodates wiring and piping materials inside A protective duct cutting tool for cutting a possible wiring / piping material protective duct with the main body portion and the cover portion assembled ,
A receiving portion that receives the contact surface of the main body portion, and a blade shaft that is fixed to the receiving portion with a protective duct received in a state where the cover portion is attached to the main body portion. A cutting blade that pivots to the center and cuts,
Furthermore, when cutting the cover blade into the cover portion of the protective duct to be cut at a position facing the blade axis with the receiving portion sandwiched during cutting, the cover portion is deformed outward by the cutting force. A top wall deformation preventing part for receiving the top wall of the cover part while maintaining a relative position with the receiving part along the shape of the top wall, and a side wall of the cover part along the shape of the side wall. Comprising a deformation prevention portion comprising a side wall deformation prevention portion that receives and holds a relative position ;
The protective duct cutting tool, wherein the top wall deformation preventing portion extends from the side wall deformation preventing portion toward the blade shaft side .
変形防止部は、受け部に連続して設けられ、天壁変形防止部と側壁変形防止部とは、切断されるカバー部の反刃軸側の側壁及び天壁に沿ったL字形状をなすことを特徴とする請求項1記載の保護ダクト切断工具。   The deformation preventing portion is provided continuously to the receiving portion, and the top wall deformation preventing portion and the side wall deformation preventing portion are formed in an L shape along the side wall on the side opposite to the blade edge of the cover portion to be cut and the top wall. The protective duct cutting tool according to claim 1. 天壁変形防止部の長さは、受け止めるべき保護ダクトのカバー部の天壁の切断長さの半分以上の長さで該カバー部を受け止める長さとなっていることを特徴とする請求項1または2記載の保護ダクト切断工具。   The length of the top wall deformation preventing portion is a length that receives the cover portion at a length that is half or more of the cut length of the top wall of the cover portion of the protective duct to be received. 2. The protective duct cutting tool according to 2. 変形防止部の天壁変形防止部と側壁変形防止部とは、刃軸に対して受け部で受けられる保護ダクトを挟んで対向した位置にある受け部軸を中心に共回動可能に設けられていることを特徴とする請求項1から3のいずれか記載の保護ダクト切断工具。   The top wall deformation prevention portion and the side wall deformation prevention portion of the deformation prevention portion are provided so as to be capable of co-rotating around a receiving portion shaft located at a position opposite to the blade shaft with a protective duct received by the receiving portion. The protective duct cutting tool according to any one of claims 1 to 3, wherein the protective duct cutting tool is provided. 変形防止部の天壁変形防止部と側壁変形防止部と、更に受け部とが、保護ダクト保持部として一体化され、刃軸に対して受け部で受けられる保護ダクトを挟んで対向した位置にある受け部軸を中心に共回動可能に設けられていることを特徴とする請求項1から4のいずれか記載の保護ダクト切断工具。   The top wall deformation prevention portion, the side wall deformation prevention portion, and the receiving portion of the deformation prevention portion are integrated as a protective duct holding portion, and are opposed to the blade shaft with the protective duct received by the receiving portion therebetween. The protective duct cutting tool according to any one of claims 1 to 4, wherein the protective duct cutting tool is provided so as to be capable of co-rotating about a receiving shaft. 保護ダクト保持部を切断刃から遠ざかるように回動させると、より小形の配線・配管材保護ダクトを受ける小受け部が使用可能となることを特徴とする請求項5記載の保護ダクト切断工具。   6. The protective duct cutting tool according to claim 5, wherein when the protective duct holding part is rotated away from the cutting blade, a small receiving part for receiving a smaller wiring / piping material protective duct can be used. 受け部に、より小形の配線・配管材保護ダクトを受ける小受け部が設けられていることを特徴とする請求項1から4のいずれか記載の保護ダクト切断工具。   The protective duct cutting tool according to any one of claims 1 to 4, wherein the receiving portion is provided with a small receiving portion for receiving a smaller wiring / piping material protecting duct.
JP2008067556A 2008-03-17 2008-03-17 Protective duct cutting tool Active JP5145087B2 (en)

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JP4541750B2 (en) * 2004-04-27 2010-09-08 未来工業株式会社 Wiring / piping material protection cover cutting tool and cutting system
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