JP2004167957A - Bamboo stick processing device - Google Patents

Bamboo stick processing device Download PDF

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Publication number
JP2004167957A
JP2004167957A JP2002338728A JP2002338728A JP2004167957A JP 2004167957 A JP2004167957 A JP 2004167957A JP 2002338728 A JP2002338728 A JP 2002338728A JP 2002338728 A JP2002338728 A JP 2002338728A JP 2004167957 A JP2004167957 A JP 2004167957A
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Japan
Prior art keywords
bamboo
cutting blade
sliding surface
gap
processing device
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Pending
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JP2002338728A
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Japanese (ja)
Inventor
Katsuji Toyotate
勝二 豊立
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Individual
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Individual
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Filing date
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Priority to JP2002338728A priority Critical patent/JP2004167957A/en
Publication of JP2004167957A publication Critical patent/JP2004167957A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a processing device which can easily and precisely process bamboo sticks for bamboo craft to a specified thickness even by an unskilled worker. <P>SOLUTION: This bamboo stick processing device has a mechanism which adjusts a gap between a sliding surface 1 and a cutting blade 2 by moving the sliding surface 1 in the vertical direction. The bamboo stick processing device also has a mechanism which adjusts the gap between the sliding surface 1 and the cutting blade 2 by changing an attaching angle of the cutting blade 2. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明が属する技術分野】
本発明は、竹篭や竹の格子などの製作に使用する薄い竹ひごに加工するための装置「せん」に関するものである。
【0002】
【従来の技術】
竹工芸などで竹ひごを所定の厚さに加工するために、従来から手動の工具「せん」が用いられている (参考文献;▲1▼佐藤圧五郎「図説 竹工芸」(第12刷)P62(1999)、▲2▼柳宗里他2名「木竹工芸事典」(第4刷)P172(1993)) 。
【0003】
竹工芸で使用される薄くて均一な厚さの竹ひごを作るには、まず鉈などで竹を割り、次に必要な厚さに剥いだ後、更に「せん」を用いて厚さを薄く均一にかつ剥ぎ面を滑らかにする。図5に従来の工具「せん」の一例を示すが、その構造はネジで固定された切削刃17 と 滑り面16からなり、刃先の間隙は紙面奥行き方向に順次狭くなっている。使い方は、切削刃17 と滑り面16の間隙に竹ひご15を入れて手で引っ張るものである。間隙の大きい方から順次小さい方へと数回繰り返して所望の厚みに仕上げる。
【0004】
竹ひごの加工に関する先願は、特開昭60−40204(工芸用竹材の極薄削機)及び、特開昭59−87105(竹ひご製造装置)などがあるが、これらは大量に加工する為の装置であり、個人の竹工芸家が設備するには高価であり過ぎた。
【0005】
【発明が解決しようとする課題】
従来の工具「せん」を用いて所定の厚さの竹ひごを得ようとする時には、切削刃17 及び滑り面16の間隙を竹ひごを加工する厚みに設定する事が必要であるが、0.3mm程度の薄い竹ひごを加工する場合、切削刃17 及び滑り面16の間隙を微妙に調整することは容易ではなく、熟練が必要であった。実際に竹ひごを加工して仕上がりの厚みをチェックし、それに応じて切削刃17の固定を解き、切削刃17 及び滑り面16の間隙を調整した上で切削刃17を固定して、再度竹ひごを加工し、チェックし、必要があればさらに間隙を調整しなおさねばならなかった。
【0006】
図6に二種類(柾割りと平剥ぎ)の竹の剥ぎ方を示す。柾割りの竹ひごは工具「せん」にかける場合に、節が側面にきて上下方向には出てこないので、切削する部分全長にわたってほぼ均一となり、固定した切削刃17 と滑り面16の間隙を通す事が出来る。一方平剥ぎの竹ひごは、外皮側が竹工芸では強度が極めて強くまた突出した節が美的にも貴重なため大切なものであるが、節のある外皮側の剥いだ竹ひごを工具「せん」にかける場合、切削面の裏側に節が来るため固定の切削刃17 及び滑り面16を通す事は不可能であった。そのため節の有る外皮側の平剥ぎの竹ひごを加工するには、節を中心として両方向から工具「せん」を使って所定の厚さに削った後、工具「せん」から取り外してナイフで節の部分を削り落とすという作業が行われているが、これは一節を有する竹ひごを加工する場合のみ可能な作業であった。多くの節を有する竹ひごを加工する場合は工具「せん」を使えず、熟練者がナイフで全長を削っていた。
【0007】
従来の工具「せん」は切削刃17 及び滑り面16は刃先の間隙が紙面奥行き方向に順次狭くなっていて平行部分がないため、出来上がった薄い竹ひごの断面も楔状になり、幅が6mm程度までの竹ひごでは工具「せん」を使うことが出来るがそれ以上幅の広い薄い竹ひごを作る場合には、断面を均一な厚さに出来ないため工具「せん」を使用できなかった。そのためこのように幅の広い竹ひごを加工する場合にも熟練した技術者がナイフで削る必要があった。
【0008】
以上のような不便な点に多くの人が改良する努力をしてきているにもかかわらず、その解決にまで至っていないのが現状である。これを安価な装置で解決すべく開発されたのが本発明である。
【0009】
【課題を解決するための手段】
本発明の竹ひご加工装置は、滑り面1を上下に動かすことにより滑り面1と切削刃2との間隙を調整する機構及び、切削刃2の取り付け角度を変えることにより滑り面1と切削刃2との間隙を調整する機構を有する事を特徴とする。
【0010】
【発明の実施の形態】
次に本発明の実施の一例の形態について実施データ―と共に図面を参照しつつ以下に記述する。図1に本発明の正面図を示す。滑り面1は滑り面支持台9に取り付けられ、滑り面支持台支点11を軸としてネジ付ノブ4により上下に調整する事ができ、滑り面1と切削刃2との間隙を設定できる。
【0011】
図2に図1におけるA−A断面を示す。切削刃2、ハンドレバー5およびヒンジレバー14はヒンジ支点12を軸としたヒンジ13に取り付けられており、切削刃2を所定の切削角度に保つため、ヒンジレバー14をスプリング6の張力によりストッパー7に当てている。またハンドレバー5を上に持ち上げる事により、切削刃2の取り付け角度をヒンジ支点12を軸にして変えることができるので、滑り面1と切削刃2との間隙を広くする事が出来る。
【0012】
次に竹ひごの節を通過させる方法を説明する。図3は、図1正面図のB−B断面を示し、竹ひご10の節の部分が滑り面1と切削刃2の間隙を通過する直前状態を表す。このままの状態では節が滑り面1に来た時に、節が滑り面1の端に当り、通過させる事ができない。更に竹の筋(維菅束)が節においてくぼみを形成しているので、所定の角度に取り付けた切削刃2を同じ角度を保ったままでくぼみを通過させようとすると切削刃2がくぼみに落ち込み、竹ひごは切断されてしまう。図4は図3と同じ構造を示すが、ハンドレバー5を上に持ち上げることにより切削刃2の取り付け角が変わり、滑り面1と切削刃2の間隙が広くなって図3における節の付いた竹ひごを滑り面1の端に当てることなく通過させる事が出来る状態を示すものである。更に切削刃2の切削角が小さくなっているので、切削刃2を節のくぼみに落ち込ませること無く、節を通過させることができるのである。
【0013】
竹ひご厚さの設定を速やかにするために滑り面1と切削刃2との間隙を数値で表示する手段が有効であるが、その方法として滑り面取り付け台9にダイアルゲージを取り付けたり、レバーを介して間隙を拡大表示する機構を取り付ける場合など簡単に行える。更に節の突出した高さをセンサーで捉え、節を通過させる高さならびにくぼみに落ち込ませない切削角度にするため、センサーによる節の高さと切削刃1の取り付け角度を変える動作とを連動させて節を通過させることができるので、自動化へと進めることができる。
【0014】
本発明の装置を用いて実際に真竹の竹ひごを用いて3年程度の経験を有する技術者が加工した結果、次のことが判明した。所望の厚さの竹ひごを加工するために滑り面1と切削刃2との間隙を設定するが、そのために要する時間は、従来の工具「せん」では3〜10分を要した。一方本発明の装置では3秒程度であった。
【0015】
切削に要する時間は、長さが80cmの一節を有する竹ひごを厚さ0.6mmから0.4mmに削る場合に、従来の工具「せん」では約40秒を要したが、本発明の装置では約18秒で仕上げる事が出来た。長さ約230cmの六節を有する竹ひごを厚さ0.9mmから0.7mmに削るには、従来の工具「せん」を使って加工することは実用上不可能であったが、比較のため全長をナイフで削ってみると約2分30秒かかり厚さは30%程度のばらつきが出来た。一方本発明の装置を使用すると約1分18秒でほぼ均一な厚さに仕上げる事ができ、見栄えも良いものであった。また、滑り面1の形状を切削刃2に対してテーパー部分と平行をもった部分(仕上げ部分)から構成する形状にする事によって、従来の工具「せん」では出来なかった幅10mmで厚さ0.4mmの均一な竹ひごも容易に製作できた。
【0016】
【発明の効果】
伝統技術を引き継ぐ後継者が次第に少なくなっていく現在において、熟練と時間を必要とする薄い竹ひご作りが、本発明の装置を使用することにより熟練していない技術者でも短時間で精度良く加工する事ができるようになった効果は非常に大きいものがある。また実際竹籠を編んでいる人に本発明の装置を使ってもらった結果、短時間で正確に容易に長い竹ひごでも加工できるという非常に高い評価が得られた。
【図面の簡単な説明】
【図1】本発明の正面図
【図2】図1のA−A断面図
【図3】図1のB−B断面図
【図4】図1のB−B断面図における節通過状態図
【図5】従来の工具「せん」
【図6】柾割りと平剥ぎの説明図
【符号の説明】
1 滑り面
2 切削刃
3 固定台
4 ネジ付ノブ
5 ハンドレバー
6 スプリング
7 ストッパー
8 スプリング
9 滑り面取り付け台
10 竹ひご
11 滑り面取り付け台支点
12 ヒンジ支点
13 ヒンジ
14 ヒンジレバー
15 竹ひご
16 滑り面
17 切削刃
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device "sen" for processing bamboo baskets and bamboo lattices into thin bamboo baskets.
[0002]
[Prior art]
Conventionally, a manual tool "sen" has been used for processing bamboo baskets to a predetermined thickness in bamboo crafts and the like (references: (1) Shigogo Sato "illustration bamboo crafts" (twelfth print) P62 (1999), {circle around (2)} Sori Yanagi and two others, "Kikutake Craft Encyclopedia" (4th print), P172 (1993)).
[0003]
To make a thin and uniform thickness of bamboo used in bamboo crafts, first split the bamboo with a hatchet, peel it to the required thickness, and then use "sen" to further reduce the thickness. Evenly and smooth the peeled surface. FIG. 5 shows an example of a conventional tool "sen". The structure is composed of a cutting blade 17 and a sliding surface 16 fixed with screws, and the gap between the cutting edges is gradually narrowed in the depth direction of the paper. The usage is to insert the bamboo string 15 into the gap between the cutting blade 17 and the sliding surface 16 and pull by hand. The process is repeated several times from the larger gap to the smaller gap to finish to a desired thickness.
[0004]
Prior applications relating to bamboo processing include Japanese Patent Application Laid-Open Nos. 60-40204 (extremely thin bamboo cutting machine for crafts) and Japanese Patent Application Laid-Open No. 59-87105 (bamboo string manufacturing apparatus). It was too expensive for a private bamboo craftsman to install.
[0005]
[Problems to be solved by the invention]
When trying to obtain a bamboo string of a predetermined thickness using a conventional tool "sen", it is necessary to set the gap between the cutting blade 17 and the sliding surface 16 to a thickness at which the bamboo string is processed. When processing a thin bamboo string of about 3 mm, it is not easy to finely adjust the gap between the cutting blade 17 and the sliding surface 16, and skill is required. The bamboo is actually processed to check the thickness of the finish, and the fixing of the cutting blade 17 is released, the gap between the cutting blade 17 and the sliding surface 16 is adjusted, and then the cutting blade 17 is fixed. The strings had to be machined, checked and, if necessary, the gap adjusted again.
[0006]
FIG. 6 shows two types of bamboo stripping (straight and flat stripping). When the straight bamboo is put on the tool "sen", the knots come to the side and do not come out vertically, so it is almost uniform over the entire length of the part to be cut, and the gap between the fixed cutting blade 17 and the sliding surface 16 is fixed. Can pass through. On the other hand, bamboo flats are very important because their outer skin is extremely strong in bamboo craft and the protruding nodes are aesthetically valuable. , It is impossible to pass through the fixed cutting blade 17 and the sliding surface 16 because the node comes behind the cutting surface. Therefore, in order to process a flat stripped bamboo string on the outer skin side with a knot, use a tool "sen" from both directions centering on the node, cut it to a predetermined thickness, remove it from the tool "sen", and cut it with a knife Although the work of shaving off the part has been carried out, this work was only possible when processing a bamboo string having a passage. When processing bamboo with many knots, the tool "sen" could not be used, and the skilled worker cut the entire length with a knife.
[0007]
The conventional tool "sen" has a cutting blade 17 and a sliding surface 16 in which the gap between the cutting edges is gradually narrowed in the depth direction of the paper and there are no parallel portions. Until the bamboo hitch, the tool "sen" can be used, but when making a thin bamboo thicker wider than that, the tool "sen" could not be used because the cross section could not be uniform. Therefore, even when processing such a wide bamboo string, a skilled technician had to sharpen it with a knife.
[0008]
Despite many people's efforts to improve on the inconveniences described above, they have not yet been resolved. The present invention has been developed to solve this problem with an inexpensive device.
[0009]
[Means for Solving the Problems]
The bamboo string processing apparatus according to the present invention includes a mechanism for adjusting the gap between the sliding surface 1 and the cutting blade 2 by moving the sliding surface 1 up and down, and a method for changing the mounting angle of the cutting blade 2 to the sliding surface 1 and the cutting blade. It is characterized by having a mechanism for adjusting the gap with the second.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described below with reference to the drawings together with implementation data. FIG. 1 shows a front view of the present invention. The sliding surface 1 is attached to a sliding surface support base 9 and can be adjusted up and down by a screwed knob 4 with the sliding surface support base fulcrum 11 as an axis, so that a gap between the sliding surface 1 and the cutting blade 2 can be set.
[0011]
FIG. 2 shows an AA cross section in FIG. The cutting blade 2, the hand lever 5 and the hinge lever 14 are attached to a hinge 13 about the hinge fulcrum 12. In order to keep the cutting blade 2 at a predetermined cutting angle, the hinge lever 14 is moved to the stopper 7 by the tension of the spring 6. To Further, by raising the hand lever 5 upward, the mounting angle of the cutting blade 2 can be changed about the hinge fulcrum 12, so that the gap between the sliding surface 1 and the cutting blade 2 can be widened.
[0012]
Next, a method of passing through the nodes of the bamboo will be described. FIG. 3 is a cross-sectional view taken along the line BB of the front view of FIG. In this state, when the node comes to the sliding surface 1, the node hits the edge of the sliding surface 1 and cannot be passed. Furthermore, since the bamboo streaks (vessel bundles) form depressions at the nodes, if the cutting blade 2 attached at a predetermined angle is passed through the depression while maintaining the same angle, the cutting blade 2 falls into the depression. , The bamboo is cut off. FIG. 4 shows the same structure as FIG. 3, but the mounting angle of the cutting blade 2 is changed by lifting the hand lever 5 upward, the gap between the sliding surface 1 and the cutting blade 2 is widened, and the node in FIG. This shows a state in which the bamboo can be passed without hitting the end of the sliding surface 1. Further, since the cutting angle of the cutting blade 2 is small, the cutting blade 2 can be passed through the node without dropping into the depression of the node.
[0013]
Means for numerically displaying the gap between the sliding surface 1 and the cutting blade 2 is effective in order to quickly set the thickness of the bamboo string. As a method, a dial gauge may be attached to the sliding surface mount 9 or a lever may be used. This can be easily performed, for example, when a mechanism for enlarging and displaying a gap is attached via the. In addition, the sensor detects the protruding height of the knot, and interlocks the height of the knot with the sensor and the operation of changing the mounting angle of the cutting blade 1 in order to make the height that allows the knot to pass and the cutting angle that does not fall into the hollow. Since the node can be passed, automation can be advanced.
[0014]
A technician having about three years of experience using bamboo bamboo hilt using the apparatus of the present invention actually worked out the following. A gap between the sliding surface 1 and the cutting blade 2 is set in order to process a bamboo string having a desired thickness. The time required for the clearance is 3 to 10 minutes with the conventional tool "sen". On the other hand, it took about 3 seconds in the apparatus of the present invention.
[0015]
The time required for cutting was about 40 seconds with a conventional tool "Sen" when cutting a bamboo string having a length of 80 cm from 0.6 mm to 0.4 mm in thickness. It took about 18 seconds to finish. In order to cut a bamboo tree with a length of about 230 cm and having six segments from a thickness of 0.9 mm to a thickness of 0.7 mm, it was practically impossible to use a conventional tool "Sen". Therefore, when the entire length was cut with a knife, it took about 2 minutes and 30 seconds, and the thickness varied about 30%. On the other hand, when the apparatus of the present invention was used, it was possible to finish to a substantially uniform thickness in about 1 minute and 18 seconds, and the appearance was good. Further, by making the shape of the sliding surface 1 into a shape composed of a portion (finished portion) parallel to the tapered portion with respect to the cutting blade 2, the width is 10 mm and the thickness is not possible with the conventional tool “sen”. A uniform bamboo string of 0.4 mm was easily produced.
[0016]
【The invention's effect】
At present, as the number of successors who take over traditional techniques gradually decreases, thin bamboo making, which requires skill and time, can be accurately processed in a short time even by unskilled technicians by using the device of the present invention. The effects that can be done are very large. In addition, as a result of having a person who is actually knitting bamboo baskets use the apparatus of the present invention, a very high evaluation was obtained that a long bamboo basket can be processed accurately and easily in a short time.
[Brief description of the drawings]
1 is a front view of the present invention; FIG. 2 is a cross-sectional view taken along line AA of FIG. 1; FIG. 3 is a cross-sectional view taken along line BB of FIG. 1; FIG. 5: Conventional tool "sen"
FIG. 6 is an explanatory view of splitting straight and flat stripping.
DESCRIPTION OF SYMBOLS 1 Sliding surface 2 Cutting blade 3 Fixed base 4 Knob with screw 5 Hand lever 6 Spring 7 Stopper 8 Spring 9 Sliding surface mounting base 10 Bamboo ladder 11 Sliding surface mounting base fulcrum 12 Hinge fulcrum 13 Hinge 14 Hinge lever 15 Bamboo hig 16 Sliding surface 17 Cutting blade

Claims (1)

竹ひごなどを所定の厚さに加工する装置「せん」において、滑り面(1)を上下に動かすことにより滑り面(1)と切削刃(2)との間隙を調整する機構及び、切削刃(2)の取り付け角度を変えることにより滑り面(1)と切削刃(2)との間隙を調整する機構を有する事を特徴とする竹ひご加工装置。A mechanism for adjusting the gap between the sliding surface (1) and the cutting blade (2) by moving the sliding surface (1) up and down in an apparatus "Sen" for processing bamboo and the like to a predetermined thickness, and a cutting blade. A bamboo string processing device characterized by having a mechanism for adjusting the gap between the sliding surface (1) and the cutting blade (2) by changing the mounting angle of (2).
JP2002338728A 2002-11-22 2002-11-22 Bamboo stick processing device Pending JP2004167957A (en)

Priority Applications (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103395105A (en) * 2013-08-22 2013-11-20 江旭阳 Bamboo cane milling integrated machine
JP2014136337A (en) * 2013-01-15 2014-07-28 Yoshinari Seiki Seisakusho:Kk Device for processing and assembling bamboo slat
CN105082279A (en) * 2015-09-14 2015-11-25 郭荣才 Piece cutting device for vertical conveying of bamboo piece green and yellow faces
CN106182304A (en) * 2016-08-17 2016-12-07 张正权 Automatically it is switched fast the broken bamboo machine of cutter head
CN106182231A (en) * 2016-07-21 2016-12-07 三江县善茶轩工艺品有限公司 Bamboo removes blue or green cutter
CN110843035A (en) * 2019-11-23 2020-02-28 怀化市恒裕竹木开发有限公司 Accurate stripping and slicing equipment for bamboo product production

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014136337A (en) * 2013-01-15 2014-07-28 Yoshinari Seiki Seisakusho:Kk Device for processing and assembling bamboo slat
CN103395105A (en) * 2013-08-22 2013-11-20 江旭阳 Bamboo cane milling integrated machine
CN105082279A (en) * 2015-09-14 2015-11-25 郭荣才 Piece cutting device for vertical conveying of bamboo piece green and yellow faces
CN106182231A (en) * 2016-07-21 2016-12-07 三江县善茶轩工艺品有限公司 Bamboo removes blue or green cutter
CN106182304A (en) * 2016-08-17 2016-12-07 张正权 Automatically it is switched fast the broken bamboo machine of cutter head
CN110843035A (en) * 2019-11-23 2020-02-28 怀化市恒裕竹木开发有限公司 Accurate stripping and slicing equipment for bamboo product production

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