JP3882166B2

JP3882166B2 - Support member for attaching punching blade to drilling device, equipped with punch scrap fall prevention means

Info

Publication number: JP3882166B2
Application number: JP2002195795A
Authority: JP
Inventors: 誠森; 勅泰佐久間
Original assignee: CARL Manufacturing Co Ltd
Current assignee: CARL Manufacturing Co Ltd
Priority date: 2002-07-04
Filing date: 2002-07-04
Publication date: 2007-02-14
Anticipated expiration: 2022-07-04
Also published as: JP2004034241A

Description

【０００１】
【発明の属する技術分野】
本発明は、ホルダを用いて孔明け装置に穿孔刃を取付ける支持部材に関する。
【０００２】
【従来の技術】
用紙に複数の孔を穿設する孔明け装置には、様々な構造がある。一般的には、孔を穿設する穿孔刃を直接孔明け装置に取付けずに、取付部材等を介して孔明け装置内の支持部材等に取付けるホルダ形式の構造が多い。通常、このホルダは操作上の安全性を考慮して、容易に穿孔刃が離脱しないように構成されている。
【０００３】
例えば、実開昭５９−１８３４００号公報等に開示された事務用パンチでは、取付部材をＬ型金具から構成し、該Ｌ型金具の底面にて穿孔刃を備え、また該Ｌ型金具の正面にて取付部材を支持部材に対して組付けている。この考案では、Ｌ型金具をねじを用いて螺合させるという手間があったが、しかし穿孔刃の取替頻度が少ない場合には、安定性が高く、好適であった。
このため、例えば、特開２００１−１５７９９６号公報に開示された孔明け装置では、同様に穿孔刃を先割れのＬ型金具で保持し、取付ねじで容易に離脱しないようにロットホルダーに固定している。
尚、実開昭５９−１８３４００号公報に開示された考案及び特開２００１−１５７９９６号公報に開示された発明は、いずれも本発明と同一出願人によって出願されており、これら内容は参照上、本発明に抱合される。
【０００４】
一方、ねじを用いた接続よりも、より迅速に穿孔刃を孔明け装置に取付けるものとして、特願２００１−２４２１５３号に開示された孔明け装置の穿孔刃用ホルダと支持部材がある。この発明では、ホルダは穿孔刃と、取付部材及び二位置切換部材を含み、取付部材は穿孔刃を保持しかつ二位置切換部材を備え、二位置切換部材を介して孔明け装置に取付けられている。このように構成することによって、この発明では、操作の安定性を損なわせることなく、しかし、従来の技術と比較して、より迅速にホルダを用いて穿孔刃を孔明け装置の支持部材に対して取付けている。
【０００５】
具体的には、特願２００１−２４２１５３号に開示された発明では、添付した図１１〜図１４に示すように、次に示す段階を経てホルダ１００を支持部材１５０に対して取付けている。
（非組付及び非係合段階）：ホルダ１００と支持部材１５０は互いに別体の位置にある（図１１参照）。
（組付及び非係合段階）：ホルダ１００と支持部材１５０は互いに組付けられる（図１２参照）が、しかしホルダ１００は非係合状態にある（図１３参照）。（組付及び係合段階）：ホルダ１００と支持部材１５０は互いに組付けられ、かつホルダ１００は非係合状態から係合状態に変化する（図１４参照）。
このようにホルダ１００を非組付位置から組付位置まで変化させる操作と、非係合状態から係合状態にまで変化させる操作とを二段階式に区別させることで、孔明け装置の安定性を保つとともに、迅速な穿孔刃２０の交換作業を可能としている。
【０００６】
実開昭５９−１８３４００号公報に開示された考案、特開２００１−１５７９９６号公報に開示された発明、及び特願２００１−２４２１５３号に開示された発明では、いずれも、好適には穿孔刃２０はパイプロット刃であって、穿孔時に生じたパンチ屑を連続してパイプロット刃２０の内部２０ａに押し込み、上方の支持部材１５０の溝部１９に逃がして、さらに孔明け装置に設けたごみ容器（図示せず）に回収している。
ただし、特願２００１−２４２１５３号に開示された発明では、先行技術と異なり、支持部材１５０は穿孔刃２０を位置決めする溝部１５５と、該溝部１５５の上方にさらに用紙の屑を逃がすための溝部１５６（図１１参照）を形成して、支持部材１５０にパイプロット刃２０を着脱する際に、支持部材１５０との間でパンチ屑の引掛りを生じさせないように、さらなる工夫を施している。
尚、特願２００１−２４２１５３号の発明は、本発明と同一出願人によって出願されており、この内容は参照上、本発明に抱合される。
【０００７】
このように穿孔したパンチ屑をパイプロット刃２０の内部２０ａを通して支持部材１５０の内部に回収する場合、支持部材１５０の溝部１９の下方にパイプロット刃２０の内部２０ａと連通する開口部１９ａを形成する必要がある。しかしながら、この構造ではホルダ１００を支持部材１５０から取外す際、開口部１９ａはもはやパイプロット刃２０の内部２０ａと連通せず、支持部材１５０の内部１９に残存するパンチ屑が開口部１９ａから下方に落下する場合があった。このこと自体は、孔明け装置の機能に何ら支障を生じさせないため、通常、大きな問題とはされない。
しかしながら、特に、特願２００１−２４２１５３号に開示された発明のように、従来の技術と比較して穿孔刃２０の交換作業を一層容易にする場合には、支持部材１５０からホルダ１００を取外すことはより頻繁に起こることが予想される。この場合、支持部材１５０からホルダ１００を取外す度に、支持部材１５０内に残存するパンチ屑が一部散乱して、作業環境を散らかすことが危惧される。従って、特願２００１−２４２１５３号に開示された発明のように、迅速な穿孔刃２０の交換作業を可能にする場合には、支持部材１５０からホルダ１００を取外したとき、支持部材１５０内に残存するパンチ屑が落下することを防止することが望ましい。
【０００８】
【発明が解決しようとする課題】
本発明は、以上の点に鑑みてなされたものであり、内部に残存するパンチ屑が落下することを防止するパンチ屑落下防止手段を備えた、孔明け装置に穿孔刃を取付ける支持部材を提供することを目的とするものである。
【０００９】
【課題を解決するための手段】
本発明は上記課題を解決するための手段として、請求項１に記載した発明においては、孔明け装置２００に上下移動自在に取付けられ、穿孔時に生じるパンチ屑を内部２０ａから逃がす穿孔刃２０を支持するホルダ１００を着脱自在に取付けて、前記穿孔刃２０を上下移動させて孔明け操作を行う支持部材１５０であって、内部にパンチ屑を回収する溝部１９を備えるとともに、該溝部１９に前記穿孔刃２０の内部２０ａと連通する開口部１９ａを形成し、さらに、前記ホルダ１００を前記支持部材１５０から取外す時に前記開口部１９ａを遮蔽するパンチ屑落下防止手段１６０を備えることを特徴とする。
この構成では、穿孔時にパンチ屑を穿孔刃の中空部から支持部材の溝部に回収し、さらに、ホルダを支持部材から取外す時に支持部材の溝部に残存するパンチ屑を開口部から外部に落下することを防止して、作業環境を好適な状態に保つ。
【００１０】
本発明に係るパンチ屑落下防止手段を備えた、孔明け装置に穿孔刃を取付ける支持部材は基本的には以上のように構成されるが、好適には、パンチ屑落下防止手段は弾性を有し、ホルダを取付けるとき、開口部を穿孔刃の内部と連通させ、ホルダを取外すとき、この弾性によって速やかに開口部を遮蔽して、支持部材の溝部に残存するパンチ屑を開口部から外部に落下することを防止する。具体的には、パンチ屑落下防止手段は弾性を有する板ばねを備え、かつ板ばねの一方の端部を固定するとともに他方の端部を作用部として揺動自在に構成する。そして、ホルダの取付操作によって作用部を移動させて開口部を開口させ、ホルダを支持部材から取外す時に板ばねの有する弾性によって作用部を退避位置から開口部を遮蔽する作用位置まで自動的に移動させる。ただし、パンチ屑落下防止手段は板ばね以外の弾性部材を構成要素として備えてもよい。例えば、螺旋状のばねにより、作用位置と退避位置との間で作用部を前後にスライド移動自在に構成する。そして、ホルダの取付操作によって作用部を後方にスライド移動させて開口部を開口させ、ホルダを支持部材から取外す時にばねの有する弾性によって作用部を退避位置から開口部を遮蔽する作用位置まで前方に自動的にスライド移動させる。
また、好適には、本発明に係る支持部材は、特願２００１−２４２１５３号の発明に開示された機能を備えるとともに、同じくこの発明に開示された孔明け装置の穿孔刃用ホルダと対に作用する。しかしながら、本発明に係る支持部材は、他の孔明け装置の穿孔刃用ホルダと対に作用するように構成されてもよい。例えば、ねじを用いてホルダを取付ける支持部材に対して、本発明に係るパンチ屑落下防止手段を取付けることは任意である。
【００１１】
【発明の実施の形態】
以下、本発明の実施の形態に係るパンチ屑落下防止手段を備えた、孔明け装置に穿孔刃を取付ける支持部材を添付した図を用いて説明する。
【００１２】
図１は、穿孔刃２０を支持するホルダ１００を係合状態で組付けた支持部材１５０を装着する孔明け装置２００を示す図である。図示するように、孔明け装置２００は基台１０上方の操作台１１にアーム（操作部）１２を回動自在に支持するとともに、リンク装置を用いて、アーム１２と支持部材１５０を連動させて移動させるように構成している。即ち、連接棒２０１を用いて、この一方の端部２０２をアーム１２の端部と回り対偶で結び、かつ他方の端部２０３を支持部材１５０と回り対偶で結んでいる。従って、アーム１２を回転させることで、このアーム１２の回動運動を支持部材１５０の上下運動に変換できる。ただし、ばね２０４を用いて、この一方の端部２０５を操作台１１に固定するとともに、他方の端部２０６を支持部材１５０に取付ける。故に、支持部材１５０はばね２０４によって付勢されて、上下移動する際、もとの位置に戻るように作用を受ける。
このように構成することによって、手動入力により、アーム１２を回動させることで、支持部材１５０とともに穿孔刃２０とプレート２７を降下させ、基台１０上のゲージ３０によって揃えられた用紙（図示せず）を押えると共に用紙に孔を貫通する。そして穿孔刃２０が基台１０上に設置したロットガード２６を圧接し、僅かにくい込んだ位置で停止させる。これによって用紙に孔が明けられる。この際、穿孔時に生じたパンチ屑（図示せず）は穿孔刃２０の内部２０ａに押し込められて、上方に回収される。そして、穿孔刃２０の内部２０ａから支持部材１５内部の溝１９（図１３参照）に逃がしたパンチ屑は、孔明け装置２００に設けたごみ容器（図示せず）に回収される。
尚、図１に示した孔明け装置２００は、本発明の実施の形態に係る支持部材１５０を利用する具体例の一つに過ぎず、他、例えば支持部材１５０上方にカム溝を形成して、アームの回動運動を支持部材１５０の上下運動に変換させてもよい。さらに、カム溝、リンク装置以外の方法によって、アームの回動運動を支持部材１５０の上下運動に変換してもよい。さらに、孔明け装置２００は、２つあるいはこれ以上の数の支持部材１５０を備えるように構成してもよい。
【００１３】
支持部材
従来の技術で説明したように、本発明の実施の形態では、穿孔刃２０を直接孔明け装置２００に取付けずに、ホルダ形式に、穿孔刃２０を支持するホルダ１００を孔明け装置２００内に取付ける支持部材１５０に対して着脱自在に取付ける。従って、ホルダ１００と支持部材１５０は別体であるため、支持部材１５０からホルダ１００を取外すことで、穿孔刃２０は適宜交換可能になる。
以下、本明細書では、用語「支持部材」を、孔明け装置内で上下移動自在に取付けられて、穿孔刃を支持するホルダを着脱自在に取付け、穿孔刃を上下移動させて孔明け操作を行う部材として広義に定義する。
また、用語「ホルダ」を、穿孔刃を着脱自在に支持するとともに、支持部材と着脱自在に取付けられる部材として広義に定義する。尚、ホルダの形状は任意であって、後述する二位置切換部材によって支持部材に取付けられてもよく、あるいはねじによって支持部材に取付けられてもよい。
さらに、用語「穿孔刃」を、略円筒形状の本体を有し、孔明け操作によって生じたパンチ屑を連続して内部に押し込み、軸方向に逃してパンチ屑を外部に回収させる刃として広義に定義する。
そして、用語「孔明け装置」を、支持部材を取付けるとともに、手動又は電動入力によって支持部材を上下移動させる任意の機構（手段）を備えて、孔明け操作を行う装置として広義に定義する。
【００１４】
上述したように、本発明に係る実施の形態では、支持部材１５０はホルダ１００を着脱自在に取付けるが、しかし、この取付構造の詳細については特定しない。即ち、穿孔刃２０の交換の頻度が少ない場合には、例えば、本発明に抱合される実開昭５９−１８３４００号公報に開示された考案及び特開２００１−１５７９９６号公報に開示された発明のように、ねじを使用してホルダ１００を支持部材１５０に対して取付けてもよい。一方、穿孔刃２０の交換をより容易にすることが望ましい場合には、例えば、本発明に抱合される特願２００１−２４２１５３号に開示した発明のように、ホルダ１００と支持部材１５０を構成してもよい。
【００１５】
以下、理解の容易化を図るため、本発明の好適な実施の形態に係る支持部材１５０は、特願２００１−２４２１５３号に開示した支持部材１５０の備える特徴を有し、かつ、同じく特願２００１−２４２１５３号に開示した穿孔刃用ホルダ１００を着脱自在に取付けるものとして説明する。
即ち、図２に示するように、本発明の実施の形態に係る支持部材１５０は図１１〜図１４に示したように、本体を略長方形状に形成して、この正面に係止部１５２、１５３と、溝１５７の内側に設ける係止部１５４を備えて、これら係止部１５２、１５３、１５４に対して、図１に示した穿孔刃２０を支持するホルダ１００を着脱自在に取付ける。
そして、図１１〜図１４に示した従来の技術と同様に、図６〜図９に示すように、次に示す段階を経てホルダ１００を支持部材１５０に対して定位置に取付ける。
（０；非組付及び非係合段階）：図６に示すように、ホルダ１００と支持部材１５０は互いに別体の位置にある。この際、取付部材１２０を用いて穿孔刃２０を支持し、そしてフック状部１１０、弾性圧縮部材１３０及び操作部１４０から二位置切換部材９０を支持する。
（１；組付及び非係合段階）：次に、図７に示すように、取付部材１２０上に備えた係合部１２３、１２４と支持部材１５０上に備えた係止部１５２、１５３をそれぞれ対に噛合させることによって、ホルダ１００を支持部材１５０内で定位置に位置決めする。この際、ホルダ１００と支持部材１５０は互いに組付けられるが、しかしこの状態では、ホルダ１００を支持部材１５０から任意に取外すことができ、従ってホルダ１００は非係合状態にある。
（２；組付及び係合段階）：そして、図８に示すように、操作部１４０を回転させて、弾性圧縮部材１３０を圧接させながら、操作部１４０と一体のフック状部１１０を溝１５７内で回転させる（図１４参照）。この際、溝部１５４の停止面１５９（図１１参照）と突き当るまで、フック状部１１０は溝１５７内で回転し、そして端部のテーパ面１１１（図１３参照）を支持部材１５０の溝部１５４と噛合させる。このテーパ面１１１と溝部１５４との噛合は、操作部１４０を反対方向に移動させない限り容易に外れない。故に、ホルダ１００と支持部材１５０を互いに組付け、そして二位置切換部材９０を回動させることで、ホルダ１００は非係合状態から係合状態に変化する。
尚、図６及び図７は夫々図１１及び図１２のVI−VI線とVII−VII線に沿った断面図に対応する。また、本明細書では、用語「組付位置」は別体であるホルダ１００と支持部材１５０を互いに着脱自在の状態に組付ける位置をさし、用語「係合状態」は別体であるホルダ１００と支持部材１５０を互いに組付け、かつ互いに容易に離れないように係合する状態をさす。そして、用語「二位置切換部材」を二位置切換部材９０の二位置を切り替えることで、組付位置におけるホルダの状態を非係合状態から係合状態にまで変化させる部材として定義する。
【００１６】
パンチ屑落下防止手段
上述したように、本発明の実施の形態では、穿孔時に生じるパンチ屑を穿孔刃２０の内部２０ａから支持部材１５０の内部の溝部１９に逃す。このため、図４及び図５に示すように、溝部１９の下方に穿孔刃２０の内部２０ａと連通する開口部１９ａを形成して、この開口部１９ａを介してパンチ屑を逃し、さらに溝部１９の側部に開口部１９ｂを形成して、溝部１９に逃したパンチ屑をさらに孔明け装置２００に設けたごみ容器（図示せず）に回収する。
しかしながら、この構造ではホルダ１００を支持部材１５０から取外す際、開口部１９ａはもはや穿孔刃２０の内部２０ａと連通せず、支持部材１５０の内部１９に残存するパンチ屑が開口部１９ａから下方に落下する場合があった。このこと自体は、孔明け装置の機能に何ら支障を生じさせないが、しかしながら作業環境を散らかすことは好ましいことではなかった。従って、本発明の実施の形態では、図３に示すように、支持部材１５０に開口部１９ａを遮蔽するパンチ屑落下防止手段１６０を備えて、孔明け操作後、穿孔刃２０の内部２０ａと開口部１９ａとの連通が外れたとき、図９に示すように、溝部１９に残存するパンチ屑が開口部１９ａから下方に落下することを防止する。
尚、本明細書では、用語「遮蔽」を少なくとも溝部１９の開口部１９ａの一部を覆い、パンチ屑の流通を阻害する状態として定義する。この際、開口部１９ａの全領域を覆うことを必要とせず、また、開口部１９ａと密着して覆うことを必要としない。
【００１７】
ただし、好適には、パンチ屑落下防止手段１６０は弾性を有し、ホルダ１００を取付けるとき（図８参照）、開口部１９ａを穿孔刃２０の内部２０ａと連通させ、ホルダ１００を取外すとき（図９参照）、上記弾性によって速やかに開口部１９ａを遮蔽する。
尚、本明細書では、用語「弾性」を、溝部１９の開口部１９ａを遮蔽する剛体（弾性体）に対して力を加えて遮蔽しない退避位置に移動させ、この力を除去したとき、再度もとの位置に戻そうとする特性として定義する。
【００１８】
以下、パンチ屑落下防止手段１６０の構造について具体的に説明する。
本発明の実施の形態では、パンチ屑落下防止手段１６０は図６に示すように、パンチ屑を逃す溝部１９の開口部１９ａを遮蔽する弾性体１６１と、この弾性体１６１を遮蔽位置（図６、図９参照）と、開口部１９ａを開口させる退避位置（図７、図８参照）との間で移動させる作用空間（溝部）１６９とから構成される。
即ち、図６に示すように、支持部材１５０の内部にパンチ屑を逃す溝部１９を形成する際、近接して溝部１６９を形成する。この溝部１６９の具体的な大きさと位置は任意であるが、好適にはホルダを取付ける側（正面側）の反対側（背面側）に設ける。そして、この中に弾性体１６１を収容し、隣接する開口部１９ａを遮蔽させる。好適には、図１０の（Ａ）に示すように、弾性体１６１は細長い本体を有し、この一方の端部１６２に取付部１６３を設けてねじを用いて溝部１６９の上方に固定するとともに、他方の端部１６４を溝部１６９から延ばして、近接する溝部１９の開口部１９ａを遮蔽させる。この際、弾性体１６１の本体の幅と厚さを薄くすることで、端部１６４に負荷を加えた場合、図６に示すように開口部１９ａを遮蔽する位置から、図７に示すように開口部１９ａを開口させる退避位置まで速やかに移動できるように構成する。好適には、この弾性体１６１は板ばねである。
【００１９】
ここで、板ばね１６１の端部１６４における、開口部１９ａの遮蔽手段について具体的に説明する。
図示した実施の形態では、本体の上方の端部１６２を固定し、この下方の端部１６４により、支持部材１５０の溝部１９の開口部１９ａを遮蔽させる。ただし、図６に示すように下方に延びる端部１６４の上方に開口部１９ａが位置するため、開口部１９ａを遮蔽させるためには、図１０の（Ａ）に示すように端部１６４を一度上方に折曲させて、この折曲部（第一折曲部）１６５から開口部１９ａを遮蔽させる。さらに、図７に示すように、板ばね１６１は端部１６４で別体のホルダ１００と当接して、作用位置から退避位置まで押し込まれる必要がある。この際、ホルダ１００は取付部材１２０の端部で板ばね１６１と当接するが、この位置は開口部１９ａの下方に位置する。従って、図１０の（Ａ）に示すように、端部１６４を再度下方に折曲させて、折曲部（第二折曲部）１６６から開口部１９ａ下方に挿入されるホルダ１００の端部と当接する。尚、図示した実施の形態では、板ばね１６１の本体の幅を第一折曲部１６５にて拡大して、開口部１９ａを遮蔽する機能を高めているが、しかし、開口部１９ａを遮る端部１６４の形状は任意であって、開口部１９ａの外周に沿って、略円形状に形成してもよく、あるいは図１０の（Ａ）に示すように多角形状に形成してもよい。ただし、いずれにおいても、開口部１９ａを介してパンチ屑が流通するのを防止する機能を提供する。
【００２０】
上述した板ばね１６１は開口部１９ａを遮蔽する手段１６４を本体と一体形成しているが、しかしながら、本発明に係る他の実施の形態では、例えば、添付した図１０の（Ｂ）に示すように、板ばね１６１の端部に別体の作用部１６７を取付けて構成してもよい。尚、図１０の（Ｂ）に示す実施の形態では、作用部１６７は屈曲されておらず、しかしこの厚さを厚くすることで開口部１９ａを遮る手段とホルダ１００と当接する手段を同時に提供する。
【００２１】
以上のように板ばね１６１を構成することによって、図７に示すように、端部１６４に力を加えるとき、一方の端部１６２を支点として、端部１６４を開口部１９ａを遮蔽する位置から後方に反り返らせる。ただし、板ばね１６１は弾性を有し、本体１６１を後方に反り返らせるとき、この本体１６１に塑性変形を生じさせない。そして、図７に示すように、板ばねの端部１６４を押し込んで本体１６１を後方に向って反らすとき、本体１６１に弾性エネルギーを貯え、さらに図９に示すように、ホルダ１００を支持部材１５０から取外して、端部１６４に加える力を除去するとき、板ばね１６１は貯えられた弾性エネルギーを解放して、速やかにもとの開口部１９ａを遮蔽する位置に移動する。
【００２２】
尚、本発明の実施の形態では、図７に示すように支持部材１５０の内部に溝部１６９を傾斜して形成して、図６に示すように、通常、この傾斜面１６８に対して板ばね１６１を位置決めさせている。このように傾斜面１６８を形成して、この上に板ばね１６１を位置決めすることで、開口部１９ａを遮蔽する作用位置と、開口部１９ａを開口させる退避位置のいずれにおいても、揺動する端部１６４を支持部材１５０の外部に突出させず、故に孔明け装置２００をコンパクトに構成できる。ただし、この傾斜面１６８の傾斜角度は任意であって、この具体的な角度によって、本発明の請求の範囲は拘束されない。さらに、本発明の実施の形態では、図３に示すように溝部１６９を形成する支持部材１５０の背面側を開口させているが、この部位に蓋部（図示せず）を取付けて、支持部材１５０に設けるパンチ屑落下防止手段１６０を外部環境に晒さないように構成してもよい。
【００２３】
本発明の実施の形態に係るパンチ屑落下防止手段１６０は以上のように構成されて、ホルダ１００と支持部材１５０が互いに別体の位置にある上記非組付及び非係合段階（段階０）で作用位置に移動し、そしてホルダ１００と支持部材１５０が互いに組付けられる組付段階（段階１、２）で退避位置に移動する。従って、図８に示すように、穿孔時にパンチ屑を穿孔刃２０の中空部２０ａから支持部材１５０の溝部１９まで回収し、そして図９に示すように、ホルダ１００を支持部材１５０から取外す時に板ばね１６１の有する弾性によって速やかに（自動的に）開口部１９ａを遮蔽して、支持部材１５０の溝部１９に残存するパンチ屑を開口部１９ａから外部に散乱させることなく保持して、作業環境を好適な状態に保つことが可能となる。
【００２４】
【発明の効果】
本発明は以上説明したように構成されたパンチ屑落下防止手段を備えた、孔明け装置に穿孔刃を取付ける支持部材であるから、請求項１に記載した発明によれば、穿孔時にパンチ屑を穿孔刃の中空部から支持部材の溝部に回収し、さらに、ホルダを支持部材から取外す時に支持部材の溝部に残存するパンチ屑を開口部から外部に落下することを防止して、作業環境を好適な状態に保つことが可能となる。
【図面の簡単な説明】
【図１】本発明の実施の形態に係る支持部材を装着した孔明け装置を示す略図である。
【図２】本発明の実施の形態に係る支持部材の正面図である。
【図３】図２に示した支持部材の背面図である。
【図４】図２に示した支持部材の側面図である。
【図５】図４に示した支持部材のV−V線に沿った断面図である。
【図６】図１に示した支持部材と、穿孔刃を支持するホルダを分離させた段階を示す断面図である。
【図７】図６に示したホルダと支持部材の組付段階を示す断面図である。
【図８】図７に示したホルダと支持部材の組付位置における、係合段階を示す断面図である。
【図９】図８に示した支持部材と、穿孔刃を支持するホルダを再度分離させた状態を示す断面図である。
【図１０】本発明の実施の形態に係る板ばねを（Ａ）と（Ｂ）の二つの形態に分けて示す図である。
【図１１】特願２００１−２４２１５３号の発明に開示した、支持部材と、穿孔刃を支持するホルダを分離させた段階を示す斜視図である。
【図１２】図１１に示したホルダと支持部材の組付段階を示す斜視図である。
【図１３】図１２に示したホルダと支持部材の組付位置における、非係合段階を示す断面図である。
【図１４】図１３に示したホルダと支持部材の組付位置における、係合段階を示す断面図である。
【符号の説明】
１９溝部
１９ａ開口部
２０穿孔刃
２０ａ内部（中空部）
９０二位置切換部材
１００ホルダ
１５０支持部材
１６０パンチ屑落下防止手段（パンチ屑落下防止機構）
１６１弾性体（剛体）
１６２固定端部
１６４、１６７自由端部（作用部）
１６８傾斜面
１６９溝部（作用空間）
２００孔明け装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a support member for attaching a drilling blade to a drilling device using a holder.
[0002]
[Prior art]
There are various structures in a punching device for punching a plurality of holes in a sheet. In general, there are many holder-type structures in which a drilling blade for drilling holes is not directly attached to a drilling device, but is attached to a support member or the like in the drilling device via an attachment member or the like. Normally, this holder is configured so that the drilling blade does not easily separate in consideration of operational safety.
[0003]
For example, in the office punch disclosed in Japanese Utility Model Publication No. 59-183400, etc., the mounting member is composed of an L-shaped bracket, and a drilling blade is provided on the bottom surface of the L-shaped bracket, and the front surface of the L-shaped bracket. The mounting member is assembled to the support member. In this device, there is a trouble of screwing the L-shaped metal fitting with a screw. However, when the replacement frequency of the drilling blade is low, the stability is high and suitable.
For this reason, for example, in the drilling device disclosed in Japanese Patent Application Laid-Open No. 2001-157996, the drilling blade is similarly held by a tip-shaped L-shaped metal fitting and fixed to the lot holder so that it cannot be easily detached with a mounting screw. ing.
In addition, the invention disclosed in Japanese Utility Model Publication No. 59-183400 and the invention disclosed in Japanese Patent Application Laid-Open No. 2001-157996 are both filed by the same applicant as the present invention. Conjugated to the present invention.
[0004]
On the other hand, there are a drilling blade holder and a support member of a drilling device disclosed in Japanese Patent Application No. 2001-242153 as a method for attaching a drilling blade to a drilling device more quickly than a connection using a screw. In this invention, the holder includes a drilling blade, an attachment member, and a two-position switching member. The mounting member holds the drilling blade and includes the two-position switching member, and is attached to the drilling device via the two-position switching member. Yes. By configuring in this way, the present invention does not impair the stability of the operation, but compared with the conventional technique, the drilling blade is more quickly used with respect to the support member of the drilling device by using the holder. Are installed.
[0005]
Specifically, in the invention disclosed in Japanese Patent Application No. 2001-242153, the holder 100 is attached to the support member 150 through the following steps as shown in FIGS.
(Non-Assembly and Non-engagement Stage): The holder 100 and the support member 150 are in separate positions (see FIG. 11).
(Assembly and disengagement stage): The holder 100 and the support member 150 are assembled to each other (see FIG. 12), but the holder 100 is in a disengaged state (see FIG. 13). (Assembly and engagement stage): The holder 100 and the support member 150 are assembled to each other, and the holder 100 changes from the non-engaged state to the engaged state (see FIG. 14).
As described above, the operation of changing the holder 100 from the non-assembled position to the assembled position and the operation of changing the holder 100 from the non-engaged state to the engaged state are distinguished in two stages, thereby improving the stability of the drilling device. In addition, it is possible to replace the drilling blade 20 quickly.
[0006]
In the invention disclosed in Japanese Utility Model Laid-Open No. 59-183400, the invention disclosed in Japanese Patent Application Laid-Open No. 2001-157996, and the invention disclosed in Japanese Patent Application No. 2001-242153, each of the punching blades 20 is preferably used. Is a pipe lot blade, and punch waste generated at the time of drilling is continuously pushed into the inside 20a of the pipe lot blade 20 to escape into the groove portion 19 of the upper support member 150, and further, a dust container ( (Not shown).
However, in the invention disclosed in Japanese Patent Application No. 2001-242153, unlike the prior art, the support member 150 has a groove portion 155 for positioning the punching blade 20 and a groove portion 156 for allowing paper waste to escape above the groove portion 155. (Refer to FIG. 11), when the pipette blade 20 is attached to and detached from the support member 150, further contrivances are made so that punch scraps are not caught with the support member 150.
The invention of Japanese Patent Application No. 2001-242153 has been filed by the same applicant as the present invention, and the contents thereof are incorporated into the present invention for reference.
[0007]
When the punch scraps perforated in this way are collected into the support member 150 through the inside 20a of the pipe lot blade 20, an opening 19a communicating with the inside 20a of the pipe lot blade 20 is formed below the groove portion 19 of the support member 150. There is a need to. However, in this structure, when the holder 100 is removed from the support member 150, the opening 19a no longer communicates with the interior 20a of the pipette blade 20, and punch scraps remaining in the interior 19 of the support member 150 are lowered downward from the opening 19a. There was a case of falling. This in itself does not cause any trouble in the function of the drilling device, so it is usually not a big problem.
However, in particular, as in the invention disclosed in Japanese Patent Application No. 2001-242153, the holder 100 is removed from the support member 150 when the replacement operation of the drilling blade 20 is further facilitated as compared with the prior art. Is expected to occur more frequently. In this case, every time the holder 100 is removed from the support member 150, there is a concern that the punch scraps remaining in the support member 150 are partly scattered to scatter the work environment. Therefore, as in the invention disclosed in Japanese Patent Application No. 2001-242153, when enabling quick replacement of the drilling blade 20, when the holder 100 is removed from the support member 150, it remains in the support member 150. It is desirable to prevent falling punch scraps.
[0008]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and provides a support member for attaching a punching blade to a drilling device, provided with punch scrap fall prevention means for preventing punch scrap remaining inside from falling. It is intended to do.
[0009]
[Means for Solving the Problems]
As a means for solving the above-mentioned problems, the present invention provides a drilling device according to the first aspect of the present invention. 200 It can be moved up and down and the punch scraps generated during drilling are inside. 20a Drilling blade to escape from 20 Holder to support 100 Removably attach the drilling blade 20 Support member that moves up and down to perform drilling operation 150 And the groove part which collects punch scraps inside 19 And the groove portion 19 To the drilling blade 20 Inside 20a Opening communicating with 19a Further, The opening 19a is shielded when the holder 100 is removed from the support member 150. Punch scrap fall prevention means 160 It is characterized by providing.
In this configuration, punch scraps are collected from the hollow part of the punching blade into the groove part of the support member at the time of drilling, and further, punch scraps remaining in the groove part of the support member are dropped from the opening part to the outside when the holder is removed from the support member. To keep the working environment in a suitable state.
[0010]
The supporting member for mounting the punching blade to the punching device provided with the punch scrap fall prevention means according to the present invention is basically configured as described above. Preferably, the punch scrap fall prevention means has elasticity. When the holder is attached, the opening is communicated with the inside of the drilling blade, and when the holder is removed, the opening is quickly shielded by this elasticity, and punch scraps remaining in the groove of the support member are removed from the opening to the outside. Prevent falling. Specifically, the punch scrap fall prevention means includes a leaf spring having elasticity, and is configured to be able to swing freely with one end portion of the leaf spring being fixed and the other end portion acting as an action portion. Then, the operating portion is moved by attaching the holder to open the opening, and when the holder is removed from the support member, the operating portion is automatically moved from the retracted position to the operating position that shields the opening by the elasticity of the leaf spring. Let However, the punch scrap fall prevention means may include an elastic member other than the leaf spring as a constituent element. For example, the action portion is configured to be slidable back and forth between the action position and the retracted position by a spiral spring. Then, the operating portion is slid rearward by the attaching operation of the holder to open the opening, and when the holder is removed from the support member, the operating portion is moved forward from the retracted position to the operating position where the opening is shielded by the elasticity of the spring. Automatically slide.
Preferably, the support member according to the present invention has the function disclosed in the invention of Japanese Patent Application No. 2001-242153, and acts in a pair with the drill blade holder of the drilling device disclosed in the present invention. To do. However, the support member according to the present invention may be configured to act in a pair with a drilling blade holder of another drilling device. For example, it is optional to attach the punch scrap fall prevention means according to the present invention to the support member to which the holder is attached using a screw.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, it demonstrates using the figure which attached the support member which attaches a punching blade to the drilling apparatus provided with the punch scrap fall prevention means which concerns on embodiment of this invention.
[0012]
FIG. 1 is a view showing a drilling device 200 for mounting a support member 150 in which a holder 100 for supporting a drilling blade 20 is assembled in an engaged state. As shown in the figure, the drilling device 200 supports the arm (operation unit) 12 on the operation table 11 above the base 10 in a rotatable manner, and uses the link device to link the arm 12 and the support member 150 together. It is configured to move. That is, the connecting rod 201 is used to connect the one end 202 to the end of the arm 12 by a pair and to connect the other end 203 to the support member 150 by a pair. Therefore, by rotating the arm 12, the rotational movement of the arm 12 can be converted into the vertical movement of the support member 150. However, the spring 204 is used to fix the one end 205 to the operation table 11 and attach the other end 206 to the support member 150. Therefore, the support member 150 is biased by the spring 204 and is acted to return to the original position when moving up and down.
With this configuration, by rotating the arm 12 by manual input, the punching blade 20 and the plate 27 are lowered together with the support member 150 and are aligned by the gauge 30 on the base 10 (not shown). ) And press the hole through the paper. Then, the perforation blade 20 presses the lot guard 26 installed on the base 10 and stops at a slightly indented position. This creates a hole in the paper. At this time, punch scraps (not shown) generated during drilling are pushed into the interior 20a of the drilling blade 20 and collected upward. The punch scraps that have escaped from the inside 20a of the punching blade 20 to the groove 19 (see FIG. 13) inside the support member 15 are collected in a garbage container (not shown) provided in the punching device 200.
The drilling device 200 shown in FIG. 1 is only one specific example using the support member 150 according to the embodiment of the present invention. In addition, for example, a cam groove is formed above the support member 150. The pivoting motion of the arm may be converted into the vertical motion of the support member 150. Further, the rotational movement of the arm may be converted into the vertical movement of the support member 150 by a method other than the cam groove and the link device. Further, the punching device 200 may be configured to include two or more support members 150.
[0013]
Support member
As described in the prior art, in the embodiment of the present invention, the holder 100 supporting the drilling blade 20 is mounted in the drilling device 200 in the holder form without directly attaching the drilling blade 20 to the drilling device 200. It is detachably attached to the support member 150 to be attached. Therefore, since the holder 100 and the support member 150 are separate bodies, the drilling blade 20 can be appropriately replaced by removing the holder 100 from the support member 150.
Hereinafter, in this specification, the term “support member” is attached in a drilling device so as to be movable up and down, a holder for supporting the drilling blade is detachably mounted, and the drilling blade is moved up and down to perform a drilling operation. Broadly defined as a member to be performed.
The term “holder” is broadly defined as a member that detachably supports the drilling blade and is detachably attached to the support member. The shape of the holder is arbitrary, and the holder may be attached to the support member by a two-position switching member described later, or may be attached to the support member by screws.
Furthermore, the term “drilling blade” is broadly defined as a blade having a substantially cylindrical main body, which continuously pushes punch scraps generated by the drilling operation into the interior and releases them in the axial direction to collect the punch scraps outside. Define.
The term “drilling device” is broadly defined as a device for performing a drilling operation, including an arbitrary mechanism (means) for attaching and supporting a support member and moving the support member up and down manually or by electric input.
[0014]
As described above, in the embodiment according to the present invention, the support member 150 removably attaches the holder 100, but details of this attachment structure are not specified. That is, when the frequency of exchanging the perforating blade 20 is low, for example, the invention disclosed in Japanese Utility Model Laid-Open No. 59-183400 and the invention disclosed in Japanese Patent Laid-Open No. 2001-157996 are incorporated in the present invention. As such, the holder 100 may be attached to the support member 150 using screws. On the other hand, when it is desirable to replace the drilling blade 20 more easily, for example, the holder 100 and the support member 150 are configured as in the invention disclosed in Japanese Patent Application No. 2001-242153 conjugated to the present invention. May be.
[0015]
Hereinafter, in order to facilitate understanding, the support member 150 according to a preferred embodiment of the present invention has the characteristics of the support member 150 disclosed in Japanese Patent Application No. 2001-242153, and is also the same as the Japanese Patent Application 2001. Description will be made assuming that the drilling blade holder 100 disclosed in Japanese Patent No. 242153 is detachably attached.
That is, as shown in FIG. 2, the supporting member 150 according to the embodiment of the present invention has a main body formed in a substantially rectangular shape as shown in FIGS. 153 and a locking portion 154 provided inside the groove 157, and the holder 100 that supports the drilling blade 20 shown in FIG. 1 is detachably attached to the locking portions 152, 153, and 154.
Then, similarly to the conventional technique shown in FIGS. 11 to 14, as shown in FIGS. 6 to 9, the holder 100 is attached to the support member 150 at a fixed position through the following steps.
(0: non-assembly and non-engagement stage): As shown in FIG. 6, the holder 100 and the support member 150 are in separate positions. At this time, the drilling blade 20 is supported using the mounting member 120, and the two-position switching member 90 is supported from the hook-shaped portion 110, the elastic compression member 130, and the operation portion 140.
(1; assembly and non-engagement stage): Next, as shown in FIG. 7, engagement portions 123 and 124 provided on the attachment member 120 and engagement portions 152 and 153 provided on the support member 150 are provided. The holder 100 is positioned at a fixed position in the support member 150 by engaging each pair. At this time, the holder 100 and the support member 150 are assembled to each other. However, in this state, the holder 100 can be arbitrarily detached from the support member 150, and thus the holder 100 is in a disengaged state.
(2; assembly and engagement stage): Then, as shown in FIG. 8, the operation portion 140 is rotated to press the elastic compression member 130, and the hook-like portion 110 integrated with the operation portion 140 is formed in the groove 157. (See FIG. 14). At this time, the hook-shaped portion 110 rotates in the groove 157 until it abuts against the stop surface 159 (see FIG. 11) of the groove portion 154, and the tapered surface 111 (see FIG. 13) of the end portion is rotated to the groove portion 154 of the support member 150. Mesh with. The engagement between the tapered surface 111 and the groove 154 cannot be easily removed unless the operation unit 140 is moved in the opposite direction. Therefore, the holder 100 is changed from the non-engaged state to the engaged state by assembling the holder 100 and the support member 150 and rotating the two-position switching member 90.
6 and 7 correspond to cross-sectional views taken along lines VI-VI and VII-VII in FIGS. 11 and 12, respectively. Further, in this specification, the term “assembly position” refers to a position where the holder 100 and the support member 150 which are separate bodies are assembled in a detachable state, and the term “engagement state” is a holder which is a separate body. 100 and the support member 150 are assembled to each other and engaged so that they are not easily separated from each other. The term “two-position switching member” is defined as a member that changes the position of the holder at the assembly position from the non-engaged state to the engaged state by switching the two positions of the two-position switching member 90.
[0016]
Punch scrap fall prevention means
As described above, in the embodiment of the present invention, punch scraps generated at the time of drilling are released from the inside 20 a of the drilling blade 20 to the groove portion 19 inside the support member 150. Therefore, as shown in FIGS. 4 and 5, an opening 19 a communicating with the inside 20 a of the drilling blade 20 is formed below the groove 19, punch scraps are released through the opening 19 a, and the groove 19 An opening 19b is formed on the side of the punching hole, and punch scraps that have escaped into the groove 19 are further collected in a garbage container (not shown) provided in the drilling device 200.
However, in this structure, when the holder 100 is removed from the support member 150, the opening 19a no longer communicates with the interior 20a of the drilling blade 20, and punch scraps remaining in the interior 19 of the support member 150 fall downward from the opening 19a. There was a case. This in itself does not cause any trouble in the function of the drilling device, however, it was not preferable to clutter the working environment. Therefore, in the embodiment of the present invention, as shown in FIG. 3, the support member 150 is provided with punch scrap fall prevention means 160 that shields the opening 19 a, and after the drilling operation, the inside 20 a and the opening of the drilling blade 20 are opened. When the communication with the portion 19a is lost, as shown in FIG. 9, the punch scraps remaining in the groove portion 19 are prevented from falling downward from the opening portion 19a.
In this specification, the term “shielding” is defined as a state that covers at least a part of the opening 19a of the groove 19 and inhibits the flow of punch scraps. At this time, it is not necessary to cover the entire area of the opening 19a, and it is not necessary to cover the opening 19a in close contact.
[0017]
Preferably, however, the punch scrap fall prevention means 160 has elasticity, and when the holder 100 is attached (see FIG. 8), the opening 19a communicates with the inside 20a of the drilling blade 20 and the holder 100 is removed (see FIG. 8). 9), the opening 19a is quickly shielded by the elasticity.
In this specification, the term "elasticity" is moved to a retracted position where a force is applied to a rigid body (elastic body) that shields the opening 19a of the groove portion 19 and is not shielded. It is defined as a characteristic that attempts to return to the original position.
[0018]
Hereinafter, the structure of the punch scrap fall prevention means 160 will be specifically described.
In the embodiment of the present invention, as shown in FIG. 6, the punch scrap fall prevention means 160 has an elastic body 161 that shields the opening 19a of the groove portion 19 through which punch scrap is released, and the elastic body 161 is shielded (see FIG. 6). 9) and a working space (groove portion) 169 that moves between the retracted position (see FIGS. 7 and 8) for opening the opening 19a.
That is, as shown in FIG. 6, when forming the groove portion 19 that allows punch scraps to escape inside the support member 150, the groove portion 169 is formed adjacent to the groove portion 169. Although the specific size and position of the groove 169 are arbitrary, it is preferably provided on the side (rear side) opposite to the side on which the holder is mounted (front side). And the elastic body 161 is accommodated in this and the adjacent opening part 19a is shielded. Preferably, as shown in FIG. 10A, the elastic body 161 has an elongated main body, and an attachment portion 163 is provided at one end portion 162 of the elastic body 161 and fixed above the groove portion 169 using screws. The other end 164 is extended from the groove 169 to shield the opening 19a of the adjacent groove 19. At this time, by reducing the width and thickness of the main body of the elastic body 161, when a load is applied to the end 164, as shown in FIG. 7, from the position where the opening 19a is shielded as shown in FIG. It is configured to be able to move quickly to the retreat position where the opening 19a is opened. Preferably, the elastic body 161 is a leaf spring.
[0019]
Here, the shielding means of the opening 19a at the end 164 of the leaf spring 161 will be specifically described.
In the illustrated embodiment, the upper end 162 of the main body is fixed, and the lower end 164 shields the opening 19 a of the groove 19 of the support member 150. However, since the opening 19a is positioned above the end 164 extending downward as shown in FIG. 6, in order to shield the opening 19a, as shown in FIG. The opening 19a is shielded from the bent portion (first bent portion) 165 by bending upward. Further, as shown in FIG. 7, the leaf spring 161 needs to be in contact with the separate holder 100 at the end 164 and pushed from the operating position to the retracted position. At this time, the holder 100 abuts on the leaf spring 161 at the end of the mounting member 120, but this position is located below the opening 19 a. Accordingly, as shown in FIG. 10A, the end portion 164 is bent again downward, and the end portion of the holder 100 inserted from the bent portion (second bent portion) 166 below the opening 19a. Abut. In the illustrated embodiment, the width of the main body of the leaf spring 161 is enlarged by the first bent portion 165 to enhance the function of shielding the opening 19a. However, the end of the opening 19a is blocked. The shape of the part 164 is arbitrary, and may be formed in a substantially circular shape along the outer periphery of the opening 19a, or may be formed in a polygonal shape as shown in FIG. However, in any case, a function of preventing punch scraps from flowing through the opening 19a is provided.
[0020]
The leaf spring 161 described above integrally forms the means 164 for shielding the opening 19a with the main body. However, in another embodiment according to the present invention, for example, as shown in FIG. In addition, a separate action part 167 may be attached to the end of the leaf spring 161. In the embodiment shown in FIG. 10B, the action portion 167 is not bent, but by increasing the thickness, means for blocking the opening 19a and means for contacting the holder 100 are provided simultaneously. To do.
[0021]
By configuring the leaf spring 161 as described above, as shown in FIG. 7, when a force is applied to the end 164, the end 164 is shielded from the position where the one end 162 is shielded from the opening 19a. Warps backward. However, the leaf spring 161 has elasticity, and does not cause plastic deformation of the main body 161 when the main body 161 is warped backward. Then, as shown in FIG. 7, when the end portion 164 of the leaf spring is pushed in and the main body 161 is warped backward, elastic energy is stored in the main body 161, and further, as shown in FIG. When the force applied to the end portion 164 is removed, the leaf spring 161 releases the stored elastic energy and quickly moves to a position where the original opening 19a is shielded.
[0022]
In the embodiment of the present invention, as shown in FIG. 7, a groove 169 is formed in the support member 150 so as to be inclined, and as shown in FIG. 161 is positioned. By forming the inclined surface 168 in this manner and positioning the leaf spring 161 on the inclined surface 168, the end that swings in both the working position that shields the opening 19a and the retracted position that opens the opening 19a. The portion 164 is not projected to the outside of the support member 150, so that the drilling device 200 can be configured compactly. However, the inclination angle of the inclined surface 168 is arbitrary, and the claims of the present invention are not restricted by this specific angle. Furthermore, in the embodiment of the present invention, as shown in FIG. 3, the back side of the support member 150 that forms the groove 169 is opened, but a lid (not shown) is attached to this part, and the support member The punch scrap fall prevention means 160 provided at 150 may be configured not to be exposed to the external environment.
[0023]
The punch scrap fall prevention means 160 according to the embodiment of the present invention is configured as described above, and the non-assembly and non-engagement stage (stage 0) in which the holder 100 and the support member 150 are in separate positions. Then, the holder 100 and the support member 150 are moved to the retracted position at the assembly stage (stages 1 and 2) where the holder 100 and the support member 150 are assembled to each other. Therefore, as shown in FIG. 8, punch scraps are collected from the hollow portion 20a of the punching blade 20 to the groove portion 19 of the support member 150 during drilling, and the plate is removed when the holder 100 is removed from the support member 150 as shown in FIG. The opening 161a is shielded quickly (automatically) by the elasticity of the spring 161, and punch scraps remaining in the groove 19 of the support member 150 are held without being scattered from the opening 19a to the outside. It becomes possible to maintain a suitable state.
[0024]
【The invention's effect】
Since the present invention is a support member for attaching a punching blade to a drilling device having punch scrap fall prevention means configured as described above, according to the first aspect of the present invention, punch scraps are removed during drilling. It is recovered from the hollow part of the drilling blade to the groove part of the support member, and further, the punch scrap remaining in the groove part of the support member is prevented from falling outside from the opening part when removing the holder from the support member, and the working environment is suitable. It is possible to maintain a stable state.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a drilling device equipped with a support member according to an embodiment of the present invention.
FIG. 2 is a front view of a support member according to an embodiment of the present invention.
FIG. 3 is a rear view of the support member shown in FIG. 2;
4 is a side view of the support member shown in FIG. 2. FIG.
5 is a cross-sectional view taken along line VV of the support member shown in FIG.
FIG. 6 is a cross-sectional view showing a stage where the support member shown in FIG. 1 and the holder that supports the drilling blade are separated.
7 is a cross-sectional view showing an assembly stage of the holder and the support member shown in FIG. 6;
8 is a cross-sectional view showing an engagement stage at the assembly position of the holder and the support member shown in FIG.
FIG. 9 is a cross-sectional view showing a state where the support member shown in FIG. 8 and the holder that supports the drilling blade are separated again.
FIG. 10 is a view showing a leaf spring according to an embodiment of the present invention in two forms (A) and (B).
FIG. 11 is a perspective view showing a stage where a support member and a holder that supports a drilling blade are separated, which is disclosed in the invention of Japanese Patent Application No. 2001-242153.
12 is a perspective view showing an assembly stage of the holder and the support member shown in FIG.
13 is a cross-sectional view showing a non-engagement stage in the assembly position of the holder and the support member shown in FIG.
14 is a cross-sectional view showing an engagement stage at the assembly position of the holder and the support member shown in FIG.
[Explanation of symbols]
19 Groove
19a opening
20 Drilling blade
20a Inside (hollow part)
90 Two-position switching member
100 holder
150 Support member
160 Punch waste fall prevention means (punch waste fall prevention mechanism)
161 Elastic body (rigid body)
162 Fixed end
164, 167 Free end (action part)
168 inclined surface
169 Groove (working space)
200 Drilling device

Claims

The punch apparatus 200 mounted for vertical movement, is attached to the holder 100 for supporting the punching blade 20 to release the punch chips generated during drilling from the inside 20a detachably, the perforation blade 20 is vertically moved drilling operation a support member 150 to perform, provided with a groove portion 19 for collecting the punch scraps inside to form an opening 19a which communicates with the interior 20a of the hole punch bit 20 in the groove portion 19, further, the support the holder 100 A support member comprising punch scrap fall prevention means 160 that shields the opening 19a when removed from the member 150 .