JP4120367B2

JP4120367B2 - Attracting and binding machine

Info

Publication number: JP4120367B2
Application number: JP2002341425A
Authority: JP
Inventors: 進林
Original assignee: Max Co Ltd
Current assignee: Max Co Ltd
Priority date: 2002-11-25
Filing date: 2002-11-25
Publication date: 2008-07-16
Anticipated expiration: 2022-11-25
Also published as: JP2004175376A

Description

【０００１】
【発明の属する技術分野】
本発明は、誘引結束機に関するものであり、特に、変形した作動レバーを組み付けた場合でも円滑な操作を可能にした誘引結束機のレバーガイド部に関するものである。
【０００２】
【従来の技術及び発明が解決しようとする課題】
葡萄或いは胡瓜、メロン、トマト等の蔓性農作物の栽培に於いて、テープを用いてこれらの植物の蔓や枝を支柱や棚に誘引して結束する誘引結束機が知られており、本願出願人も、下記のような誘引結束機（園芸用結束機）を数件提案している。
【０００３】
図６に示すように、誘引結束機１はステープラの機構を利用した手持ち工具であり、ステープラのドライバハンドル２にクリンチャアーム３の基端部を枢着し、作動レバー４の中間部４ａをクリンチャアーム３に枢着してある。該作動レバー４の先端部４ｂはドライバハンドル２に設けられたレバーガイド部５へ回動自在に係止してある。
【０００４】
そして、ドライバハンドル２とクリンチャアーム３との間に張架したテープ６を被結束物の周囲に掛け回し、前記作動レバー４の基端側に設けた把持部４ｃをドライバハンドル２側へ押圧してドライバハンドル２とクリンチャアーム３とを閉じることにより、ドライバハンドル２側のステープルマガジン７とクリンチャアーム３のクリンチャ８とが接してテープ６の先端部が下流部に重ねて挟持される。
【０００５】
前記作動レバー４の押圧によりドライバハンドル２とクリンチャアーム３とが更に閉じて、テープ６の重なり部分がステープルにより綴じられるとともに、ドライバハンドル２に設けたカッター刃９によりテープ６を切断することにより、植物の蔓や枝を支柱や棚に誘引して結束するように構成されている（例えば、特願２００２−１７３０９７号）。
【０００６】
図７及び図８は誘引結束機１のレバーガイド部５を示し、前記作動レバー４は中間部４ａから先端部４ｂにかけて正面視略Ｕ字形に形成され、レバーガイド部５はドライバハンドル２の両側面に突設されたピン１０に円筒形のローラ１１を枢着して構成されている。前記ピン１０にはローラ１１の外形よりも大径の円形段部１０ａが段設されており、この円形段部１０ａをドライバハンドル２の側面に当接させてピン１０を固定し、ローラ１１をピン１０に差し込んでその一側面を円形段部１０ａに当接させ、ローラ１１の他側面に座金１２を当接してローラ１１の抜け止めとしている。
【０００７】
前記作動レバー４及びレバーガイド部５のローラ１１には磨耗を防止するために熱処理を施しているが、熱処理時の変形で作動レバーの先端部４ｂ，４ｂ間の幅が所定の寸法にならないことがある。例えば、作動レバーの先端部４ｂ，４ｂ間の幅が広くなった場合は、図７に示すように、作動レバーの先端部４ｂがローラ１１の上に正しく乗らずに外側の座金１２に接触する。一方、作動レバーの先端部４ｂ，４ｂ間の幅が狭くなった場合は、図８に示すように、作動レバーの先端部４ｂがローラ１１の上に正しく乗らずにピンの円形段部１０ａに接触する。
【０００８】
前記作動レバーの先端部４ｂやローラ１１は熱処理を施してあるが、ピン１０及び該ピンの円形段部１０ａや座金１２は熱処理されていないので耐磨耗性が低く、図７や図８に示した状態で使用を続けると、円形段部１０ａや座金１２が削られて作動レバー４を操作するのに多大な荷重（通常の約１０倍）を必要とすることになり、誘引結束作業が困難となる。このため、熱処理後の作動レバー４に変形が生じたときは所定寸法となるように修正しているが、作動レバー４を完全には修正できない場合も多く、誘引結束機１の作動レバー４の操作が重くなってしまうことがある。
【０００９】
そこで、ドライバハンドルのレバーガイド部へ作動レバーの先端部を係止した誘引結束機に於いて、熱処理で変形した作動レバーであっても修正することなく使用可能にし、長時間の使用に対しても作動レバーの操作荷重の増加を防止するために解決すべき技術的課題が生じてくるのであり、本発明は上記課題を解決することを目的とする。
【００１０】
【課題を解決するための手段】
本発明は上記目的を達成するために提案されたものであり、請求項１記載の発明はステープラのドライバハンドルにクリンチャアームの基端部を枢着し、作動レバーの中間部をクリンチャアームに枢着するとともに、該作動レバーの先端部をドライバハンドルに設けられたレバーガイド部へ回動自在に係止し、ドライバハンドルとクリンチャアームとの間に張架したテープを被結束物の周囲に掛けまわし、前記作動レバーの基端側に設けた把持部をドライバハンドル側へ押圧してドライバハンドルとクリンチャアームとを閉じることにより、ドライバハンドル側のステープルマガジンとクリンチャアームのクリンチャとが接してテープの先端部を下流部に重ねて挟持し、且つ、テープの重なり部分をステープルにより綴じるとともにドライバハンドルに設けたカッター刃によりテープを切断し、且つ、前記レバーガイド部は、前記ドライバハンドルの側面に突設されたピンと、該ピンに枢着可能な枢着孔を有し、外周面に溝部を設けた断面視略Ｈ字形のローラとから構成され、一方、前記作動レバーの先端部は作動レバーの回動方向へ湾曲し、この湾曲部分を前記ローラの溝部へ回動自在に係止して成る誘引結束機において、
上記ローラは、溝部の両側に延設した双方のフランジ間の寸法がローラの外径に向かって漸増するように形成されたことを特徴とする誘引結束機を提供するものである。
又、請求項２記載の発明はステープラのドライバハンドルにクリンチャアームの基端部を枢着し、作動レバーの中間部をクリンチャアームに枢着するとともに、該作動レバーの先端部をドライバハンドルに設けられたレバーガイド部へ回動自在に係止し、ドライバハンドルとクリンチャアームとの間に張架したテープを被結束物の周囲に掛けまわし、前記作動レバーの基端側に設けた把持部をドライバハンドル側へ押圧してドライバハンドルとクリンチャアームとを閉じることにより、ドライバハンドル側のステープルマガジンとクリンチャアームのクリンチャとが接してテープの先端部を下流部に重ねて挟持し、且つ、テープの重なり部分をステープルにより綴じるとともにドライバハンドルに設けたカッター刃によりテープを切断し、且つ、前記レバーガイド部は、前記ドライバハンドルの側面に突設されたピンと、該ピンに枢着可能な枢着孔を有し、外周面に溝部を設けた断面視略Ｈ字形のローラとから構成され、一方、前記作動レバーの先端部は作動レバーの回動方向へ湾曲し、この湾曲部分を前記ローラの溝部へ回動自在に係止して成る誘引結束機において、
上記ローラには、ドライバハンドル側のフランジ表面にローラの回転中心と同軸の円形凹部が形成され、一方、上記ピンには、ドライバハンドルの側面に当接し且つローラの枢着孔よりも大径で前記円形凹部よりも小径の円形段部が形成され、前記円形凹部が形成されたフランジ表面を前記ピンの円形段部に当接させるように前記ローラを前記ピンへ枢着したことを特徴とする誘引結束機を提供する。
及び、請求項３記載の発明は上記ローラには、ドライバハンドル側のフランジ表面にローラの回転中心と同軸の円形凹部が形成され、一方、上記ピンには、ドライバハンドルの側面に当接し、且つ、ローラの枢着孔よりも大径で前記円形凹部よりも小径の円形段部が形成され、前記円形凹部が形成されたフランジ表面を前記ピンの円形段部に当接させるように前記ローラを前記ピンへ枢着したことを特徴とする請求項１記載の誘引結束機を提供するものである。
【００１１】
【発明の実施の形態】
以下、本発明の一実施の形態を図１乃至図５に従って詳述する。尚、本発明の誘引結束機は、図６に示した誘引結束機１とはレバーガイド部５以外の部分がまったく同一であるので、全体の構成の重複説明は省略するものとする。
【００１２】
図１は本発明の誘引結束機のレバーガイド部２０を示し、作動レバー４の構成は従来のものと全く同一である。即ち、作動レバー４の中間部４ａをクリンチャアーム３に枢着してあり、該作動レバー４の中間部４ａから先端部４ｂにかけては正面視略Ｕ字形に形成され、磨耗を防止するために熱処理を施してある。また、該作動レバー４の先端部４ｂは作動レバー４の回動方向へ湾曲し、この湾曲部分をドライバハンドル２に設けられたレバーガイド部２０へ回動自在に係止してある。このレバーガイド部２０はドライバハンドル２の側面に突設されたピン２１と、該ピン２１に枢着されたローラ３１と、抜け止め用の座金４１とから構成されている。
【００１３】
図２はレバーガイド部２０を示し、ドライバハンドル２の側面に開穿した取付孔２ａにピン２１が突設され、該ピン２１にローラ３１が回転自在に取り付けられている。同図に示すように、前記ローラ３１は、前記ピン２１に枢着可能な枢着孔３２を有し且つ外周面に溝部３３を設けた断面視略Ｈ字形のローラであり、溝部３３の両側に延設した双方のフランジ３４，３５間の寸法がローラ３１の外径に向かって漸増するように形成されている。即ち、双方のフランジ３４，３５の内側面は外側へ向けて傾斜したテーパ面に形成されている。ドライバハンドル２側のフランジ３４の表面には、ローラ３１の回転中心Ｃと同軸の円形凹部３６が形成されている。また、磨耗を防止するために該ローラ３１全体に熱処理を施してある。
【００１４】
一方、前記ピン２１は、前記ローラの枢着孔３２に回転可能に挿入される軸部２２と、該軸部２２の内側に設けられてドライバハンドル２の外側面に当接し且つ前記ローラの枢着孔３２よりも大径で前記円形凹部３６よりも小径の円形段部２３と、該円形段部２３の内側に設けられてドライバハンドル２の取付孔２ａに嵌入されている嵌入部２４と、該嵌入部２４の内側に設けられてドライバハンドル２の内側面に当接しているボス部２５とから構成されている。前記円形段部２３には面取り部２３ａを設けてある。尚、該ピン２１は前記ローラ３１を回転自在に支持するものであれば、上記構成に限定されるべきではなく他の形状であってもよい。
【００１５】
そして、前記円形凹部３６が形成されたフランジ３４の表面を前記ピン２１の円形段部２３へ当接させるように前記ローラ３１をピン２１の軸部２２に枢着し、該軸部２２の外側に抜け止め用の座金４１を当接してボス４２にて固定する。
【００１６】
このように構成されたレバーガイド部２０に、熱処理時の変形で作動レバーの先端部４ｂ，４ｂ間の幅が所定の寸法に一致しない作動レバー４を係止する場合について説明する。例えば、作動レバーの先端部４ｂ，４ｂ間の幅が広くなった場合は、図３に示すように、作動レバーの先端部４ｂがレバーガイド部２０の外側へ拡開しようとするが、ローラ３１の外側のフランジ３５に該作動レバーの先端部４ｂが当接するので、作動レバーの先端部４ｂがローラ３１の溝部３３から外れることはない。
【００１７】
斯かる状態で、誘引結束作業を実施すべく作動レバー４を操作した場合は、レバーの先端部４ｂが前記フランジ３５の傾斜した内側面をスライドして円滑に回動し、或いは、作動レバーの先端部４ｂとローラ３１とが一体的に回動するため、作動レバーの先端部４ｂが外側の座金４１に接触して該座金４１が削られるような不具合は生じない。
【００１８】
一方、作動レバーの先端部４ｂ，４ｂ間の幅が狭くなった場合は、図４に示すように、作動レバーの先端部４ｂがレバーガイド部２０の内側へ収縮しようとするが、ローラ３１の内側のフランジ３４に該作動レバーの先端部４ｂが当接するので、作動レバーの先端部４ｂがローラ３１の溝部３３から外れることはない。
【００１９】
斯かる状態で、誘引結束作業を実施すべく作動レバー４を操作した場合は、作動レバーの先端部４ｂが前記フランジ３４の傾斜した内側面をスライドして円滑に回動し、或いは、作動レバーの先端部４ｂとローラ３１とが一体的に回動するため、作動レバーの先端部４ｂがピンの円形段部２３に接触して該円形段部２３が削られるような不具合は生じない。
【００２０】
作動レバーの先端部４ｂ，４ｂ間の幅が更に狭くなり、図５に示すように、作動レバーの先端部４ｂが前記ローラ３１の溝部３３に入らなくなった場合であっても、傾斜したフランジ３４に作動レバーの先端部４ｂが乗り上げた状態で、作動レバーの先端部４ｂとローラ３１とが一体的に回動できるので、作動レバー４の操作に支障をきたすことはない。
【００２１】
このように、熱処理で変形した作動レバー４を修正することなくそのままレバーガイド部２０へ係止した場合でも、作動レバーの先端部４ｂがピンの円形段部２３や座金４１に接触することがない。このため、前記ピンの円形段部２３や座金４１が削られて、作動レバー４を操作するのに多大な操作荷重が必要になることはない。
【００２２】
尚、本発明は、本発明の精神を逸脱しない限り種々の改変を為すことができ、そして、本発明が該改変されたものに及ぶことは当然である。
【００２３】
【発明の効果】
本発明は上記一実施の形態に詳述したように、請求項１記載の発明は、ドライバハンドルの側面に突設されたピンに、外周面に溝部を設けた断面視Ｈ字形のローラを枢着してレバーガイド部を構成したので、該レバーガイド部へ作動レバーの先端部を係止する際に、熱処理で変形した作動レバーであっても、湾曲した先端部が前記ローラに収容される。
【００２４】
従って、熱処理で変形した作動レバーの修正作業を施さずに、そのまま組み付けた場合であっても、作動レバーの先端部がローラから外れてピンの円形段部や座金に接触する虞がなく、ピンの円形段部や座金の磨耗を防止できるとともに、円形段部や座金が削られて作動レバーを操作する荷重が増大することがない。このように、熱処理後に作動レバーの修正作業が不要であるため、組み付け工程が短縮できてコストダウンに寄与できるとともに、誘引結束作業の作業性を常に良好に維持することができる。
【００２５】
請求項２記載の発明は、上記ローラは、溝部の両側に延設したフランジ間の寸法がローラの外径に向かって漸増するように形成されているので、双方のフランジの内側面が外側へ向けて傾斜したテーパ面となっている。このため、熱処理時の変形で作動レバーの先端部間の幅が所定の寸法よりも広くなった場合、或いは、狭くなった場合の何れの場合であっても、変形して傾斜した作動レバーの先端部がフランジの内側面に接触するので、該作動レバーの先端部がローラの溝部から外れてピンの円形段部や座金に接触することがない。従って、請求項１記載の発明と同様の効果を奏する。
【００２６】
請求項３記載の発明は、上記ローラには、ドライバハンドル側のフランジ表面に円形凹部が形成され、この円形凹部をピンに設けた円形段部に当接させるようにローラをピンに枢着したので、熱処理時の変形で作動レバーの先端部間の幅が所定の寸法よりも狭くなって、作動レバーの先端部が内側のフランジに乗り上げた状態になったとしても、作動レバーの先端部がピンの円形段部に接触することがない。従って、請求項１記載の発明と同様の効果を奏する。
【図面の簡単な説明】
【図１】本発明の実施の一形態を示し、誘引結束機のレバーガイド部の正面断面図。
【図２】図１に示したレバーガイド部の拡大断面図
【図３】先端部間の幅が所定の寸法よりも広い作動レバーを係止した場合のレバーガイド部の正面断面図。
【図４】先端部間の幅が所定の寸法よりも狭い作動レバーを係止した場合のレバーガイド部の正面断面図。
【図５】先端部間の幅が所定の寸法よりも更に狭い作動レバーを係止した場合のレバーガイド部の正面断面図。
【図６】本願出願人が提案した誘引結束機の一部切欠側面図。
【図７】先端部間の幅が所定の寸法よりも広い作動レバーを係止した場合の図６Ｘ−Ｘ線部分の断面図。
【図８】先端部間の幅が所定の寸法よりも狭い作動レバーを係止した場合の図６Ｘ−Ｘ線部分の断面図。
【符号の説明】
１誘引結束機
２ドライバハンドル
３クリンチャアーム
４作動レバー
４ａ中間部
４ｂ先端部
４ｃ把持部
７ステープルマガジン
８クリンチャ
２０レバーガイド
２１ピン
２２軸部
２３円形段部
３１ローラ
３２枢着孔
３３溝部
３４，３５フランジ
３６円形凹部
４１座金[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an attracting and binding machine, and more particularly to a lever guide portion of an attracting and binding machine that enables smooth operation even when a deformed operating lever is assembled.
[0002]
[Prior art and problems to be solved by the invention]
In the cultivation of vines, cucumbers, melons, tomatoes and other vineyard crops, an attracting and binding machine is known that uses tape to attract and bind the vines and branches of these plants to columns and shelves. People have also proposed several attractive binding machines (horticultural binding machines) as follows.
[0003]
As shown in FIG. 6, the attracting and binding machine 1 is a hand-held tool using a stapler mechanism. The proximal end portion of the clincher arm 3 is pivotally attached to the driver handle 2 of the stapler, and the intermediate portion 4 a of the operating lever 4 is clinchered. It is pivotally attached to the arm 3. The distal end 4b of the operating lever 4 is pivotably locked to a lever guide 5 provided on the driver handle 2.
[0004]
Then, the tape 6 stretched between the driver handle 2 and the clincher arm 3 is hung around the object to be bound, and the grip portion 4c provided on the proximal end side of the operating lever 4 is pressed toward the driver handle 2 side. By closing the driver handle 2 and the clincher arm 3, the staple magazine 7 on the driver handle 2 side and the clincher 8 of the clincher arm 3 come into contact with each other, and the leading end portion of the tape 6 is overlapped and held on the downstream portion.
[0005]
When the operating lever 4 is pressed, the driver handle 2 and the clincher arm 3 are further closed, the overlapping portion of the tape 6 is bound by staples, and the tape 6 is cut by the cutter blade 9 provided on the driver handle 2, It is configured to attract and bind plant vines and branches to a support or shelf (for example, Japanese Patent Application No. 2002-173097).
[0006]
7 and 8 show the lever guide portion 5 of the attracting and binding machine 1, and the operating lever 4 is formed in a substantially U shape in front view from the intermediate portion 4 a to the tip portion 4 b, and the lever guide portions 5 are on both sides of the driver handle 2. A cylindrical roller 11 is pivotally attached to a pin 10 projecting from the surface. The pin 10 is provided with a circular step portion 10a having a diameter larger than the outer shape of the roller 11. The pin 10 is fixed by bringing the circular step portion 10a into contact with the side surface of the driver handle 2, and the roller 11 is fixed. One side of the pin 10 is inserted into contact with the circular step portion 10 a, and a washer 12 is brought into contact with the other side of the roller 11 to prevent the roller 11 from coming off.
[0007]
The operating lever 4 and the roller 11 of the lever guide portion 5 are heat treated to prevent wear, but the width between the tip portions 4b and 4b of the operating lever does not become a predetermined dimension due to deformation during heat treatment. There is. For example, when the width between the tip portions 4b and 4b of the actuating lever becomes wide, the tip portion 4b of the actuating lever contacts the outer washer 12 without properly riding on the roller 11, as shown in FIG. . On the other hand, when the width between the distal end portions 4b and 4b of the actuating lever becomes narrower, the distal end portion 4b of the actuating lever does not get on the roller 11 correctly, as shown in FIG. Contact.
[0008]
The tip 4b of the operating lever and the roller 11 are heat-treated, but the pin 10 and the circular step 10a of the pin and the washer 12 are not heat-treated, so the wear resistance is low, as shown in FIGS. If the use is continued in the state shown, the circular step portion 10a and the washer 12 are scraped, and a large load (about 10 times the normal) is required to operate the operating lever 4, and the attracting and binding work is performed. It becomes difficult. For this reason, when the operating lever 4 after heat treatment is deformed, the operating lever 4 is corrected so as to have a predetermined size. However, the operating lever 4 cannot be completely corrected in many cases. Operation may become heavy.
[0009]
Therefore, in the attracting and binding machine in which the tip of the actuating lever is locked to the lever guide part of the driver handle, even the actuating lever deformed by heat treatment can be used without correction, and for long-term use However, a technical problem to be solved in order to prevent an increase in the operation load of the operating lever arises, and the present invention aims to solve the above problem.
[0010]
[Means for Solving the Problems]
The present invention has been proposed to achieve the above object, and the invention according to claim 1 is characterized in that the proximal end portion of the clincher arm is pivotally attached to the driver handle of the stapler, and the intermediate portion of the operation lever is pivoted to the clincher arm. At the same time, the tip of the actuating lever is pivotably locked to a lever guide provided on the driver handle, and a tape stretched between the driver handle and the clincher arm is hung around the object to be bound. Then, the gripping portion provided on the base end side of the operating lever is pressed toward the driver handle to close the driver handle and the clincher arm, so that the staple magazine on the driver handle side and the clincher on the clincher arm come into contact with each other. The front end part is overlapped with the downstream part, and the overlapping part of the tape is bound with staples and the driver. Tape was cut by a cutter blade provided on the bundle, and the lever guide portion includes a pin projecting from the side face of the driver handle, it has a hinged possible pivot hole in the pin, the groove on the outer peripheral surface On the other hand, the tip of the actuating lever is curved in the direction of rotation of the actuating lever, and the curved portion is rotatably locked to the groove of the roller. in attractant binding machine consisting of Te,
The roller provides an attracting and binding machine characterized in that the dimension between both flanges extending on both sides of the groove portion is gradually increased toward the outer diameter of the roller .
According to the second aspect of the present invention, the proximal end portion of the clincher arm is pivotally attached to the driver handle of the stapler, the intermediate portion of the operating lever is pivotally attached to the clincher arm, and the distal end portion of the operating lever is provided on the driver handle. The lever is pivotably locked to the lever guide, the tape stretched between the driver handle and the clincher arm is hung around the object to be bound, and the grip provided on the base end side of the operating lever is By pushing toward the driver handle side and closing the driver handle and the clincher arm, the staple magazine on the driver handle side and the clincher of the clincher arm come into contact with each other, and the leading end portion of the tape is overlapped with the downstream portion and sandwiched. The overlapping portion is bound with staples, and the tape is cut with a cutter blade provided on the driver handle, and The lever guide portion includes a pin projecting from the side of the driver handle, and a substantially H-shaped roller in section view having a pivot hole that can pivot on the pin and having a groove on the outer peripheral surface. On the other hand, in the attraction binding machine in which the tip of the actuating lever is curved in the pivoting direction of the actuating lever and the curved part is pivotably locked to the groove of the roller.
The roller is formed with a circular concave portion coaxial with the rotation center of the roller on the surface of the flange on the driver handle side, while the pin is in contact with the side surface of the driver handle and has a diameter larger than the pivot mounting hole of the roller. A circular step portion having a diameter smaller than that of the circular recess portion is formed, and the roller is pivotally attached to the pin so that the flange surface on which the circular recess portion is formed contacts the circular step portion of the pin. Provide an attractive binding machine.
In the invention according to claim 3 , the roller is formed with a circular concave portion coaxial with the rotation center of the roller on the surface of the flange on the driver handle side, while the pin contacts the side surface of the driver handle , and A circular step portion having a diameter larger than that of the pivotal attachment hole of the roller and smaller than that of the circular recess portion is formed, and the flange surface on which the circular recess portion is formed is brought into contact with the circular step portion of the pin. The attracting and binding machine according to claim 1, wherein the attracting and binding machine is pivotally attached to the pin.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. The attracting and binding machine according to the present invention is the same as the attracting and binding machine 1 shown in FIG. 6 except for the lever guide part 5, and therefore, the description of the entire configuration is omitted.
[0012]
FIG. 1 shows a lever guide portion 20 of an attracting and binding machine according to the present invention, and the configuration of an operating lever 4 is exactly the same as that of a conventional one. That is, the intermediate portion 4a of the operating lever 4 is pivotally attached to the clincher arm 3, and the intermediate portion 4a to the distal end portion 4b of the operating lever 4 is formed in a substantially U shape in front view, and heat treatment is performed to prevent wear. Is given. Further, the distal end portion 4 b of the operation lever 4 is bent in the rotation direction of the operation lever 4, and this bent portion is rotatably locked to a lever guide portion 20 provided on the driver handle 2. The lever guide portion 20 includes a pin 21 protruding from the side surface of the driver handle 2, a roller 31 pivotally attached to the pin 21, and a washer 41 for retaining the lever.
[0013]
FIG. 2 shows the lever guide portion 20. A pin 21 protrudes from an attachment hole 2 a opened in the side surface of the driver handle 2, and a roller 31 is rotatably attached to the pin 21. As shown in the figure, the roller 31 is a substantially H-shaped roller having a pivotal hole 32 that can be pivotally coupled to the pin 21 and having a groove 33 on the outer peripheral surface. The dimension between both flanges 34, 35 extending in the direction of the roller 31 is formed so as to gradually increase toward the outer diameter of the roller 31. That is, the inner side surfaces of both flanges 34 and 35 are formed as tapered surfaces inclined outward. A circular recess 36 coaxial with the rotation center C of the roller 31 is formed on the surface of the flange 34 on the driver handle 2 side. In order to prevent wear, the entire roller 31 is heat treated.
[0014]
On the other hand, the pin 21 has a shaft portion 22 rotatably inserted into the pivot attachment hole 32 of the roller, and is provided inside the shaft portion 22 so as to contact the outer surface of the driver handle 2 and to pivot the roller. A circular step 23 having a diameter larger than that of the attachment hole 32 and smaller than that of the circular recess 36; a fitting portion 24 provided inside the circular step 23 and fitted into the mounting hole 2a of the driver handle 2; The boss portion 25 is provided inside the fitting portion 24 and is in contact with the inner surface of the driver handle 2. The circular step portion 23 is provided with a chamfered portion 23a. The pin 21 is not limited to the above configuration as long as it supports the roller 31 in a rotatable manner, and may have another shape.
[0015]
The roller 31 is pivotally attached to the shaft portion 22 of the pin 21 so that the surface of the flange 34 formed with the circular recess 36 is brought into contact with the circular step portion 23 of the pin 21, and the outer side of the shaft portion 22. A retaining washer 41 is brought into contact with and fixed by a boss 42.
[0016]
A description will be given of the case where the operating lever 4 whose width between the distal end portions 4b, 4b of the operating lever does not match a predetermined dimension due to deformation during heat treatment is locked to the lever guide portion 20 configured as described above. For example, when the width between the distal end portions 4b and 4b of the operating lever becomes wider, the distal end portion 4b of the operating lever tries to expand outward of the lever guide portion 20 as shown in FIG. Since the distal end portion 4 b of the operating lever comes into contact with the outer flange 35, the distal end portion 4 b of the operating lever does not come off from the groove portion 33 of the roller 31.
[0017]
In such a state, when the operation lever 4 is operated to perform the attraction and binding work, the distal end portion 4b of the lever slides smoothly on the inclined inner surface of the flange 35, or the operation lever 4 Since the tip portion 4b and the roller 31 rotate integrally, there is no problem that the tip portion 4b of the operating lever contacts the outer washer 41 and the washer 41 is scraped.
[0018]
On the other hand, when the width between the distal end portions 4b and 4b of the operating lever becomes narrower, the distal end portion 4b of the operating lever tends to contract inside the lever guide portion 20 as shown in FIG. Since the distal end 4 b of the operating lever abuts on the inner flange 34, the distal end 4 b of the operating lever does not come off from the groove 33 of the roller 31.
[0019]
In such a state, when the operation lever 4 is operated to perform the attracting and binding work, the distal end portion 4b of the operation lever slides smoothly on the inclined inner surface of the flange 34, or the operation lever Since the tip 4b of the roller and the roller 31 rotate integrally, there is no problem that the tip 4b of the actuating lever contacts the circular step 23 of the pin and the circular step 23 is scraped off.
[0020]
Even when the width between the front end portions 4b and 4b of the operating lever is further narrowed and the front end portion 4b of the operating lever does not enter the groove portion 33 of the roller 31, as shown in FIG. In addition, since the tip 4b of the operating lever and the roller 31 can rotate integrally with the tip 4b of the actuating lever riding on, the operation of the actuating lever 4 is not hindered.
[0021]
Thus, even when the operating lever 4 deformed by the heat treatment is directly locked to the lever guide portion 20 without correction, the tip end portion 4b of the operating lever does not come into contact with the circular step portion 23 or the washer 41 of the pin. . For this reason, the circular step portion 23 and the washer 41 of the pin are not cut and a large operation load is not required to operate the operation lever 4.
[0022]
It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.
[0023]
【The invention's effect】
As described in detail in the above embodiment, the invention described in claim 1 is characterized in that an H-shaped roller in cross-sectional view in which a groove portion is provided on the outer peripheral surface of a pin protruding from the side surface of the driver handle is pivoted. Since the lever guide portion is configured by wearing, the curved tip portion is accommodated in the roller even when the lever is deformed by heat treatment when the tip portion of the actuating lever is locked to the lever guide portion. .
[0024]
Therefore, even if the operating lever deformed by heat treatment is not corrected, it can be assembled as it is without the tip of the operating lever coming off the roller and coming into contact with the circular stepped portion of the pin or the washer. The circular stepped portion and the washer can be prevented from being worn, and the circular stepped portion and the washer are not scraped to increase the load for operating the operating lever. Thus, since the operation of correcting the actuating lever is not necessary after the heat treatment, the assembly process can be shortened and the cost can be reduced, and the workability of the attraction and bundling operation can always be maintained satisfactorily.
[0025]
According to a second aspect of the present invention, the roller is formed such that the dimension between the flanges extending on both sides of the groove portion gradually increases toward the outer diameter of the roller. The taper surface is inclined toward the surface. For this reason, even if the width between the tip portions of the operating lever becomes wider than a predetermined dimension due to deformation during heat treatment, or when the width becomes narrower, the deformed and inclined operating lever Since the tip end portion contacts the inner surface of the flange, the tip end portion of the operating lever does not come out of the groove portion of the roller and does not contact the circular stepped portion of the pin or the washer. Accordingly, the same effect as that of the first aspect of the invention can be obtained.
[0026]
According to a third aspect of the present invention, the roller has a circular recess formed on the flange surface on the driver handle side, and the roller is pivotally attached to the pin so that the circular recess is brought into contact with a circular step provided on the pin. Therefore, even if the width between the tips of the operating lever becomes narrower than the predetermined dimension due to deformation during heat treatment, and the tip of the operating lever rides on the inner flange, the tip of the operating lever There is no contact with the circular step of the pin. Accordingly, the same effect as that of the first aspect of the invention can be obtained.
[Brief description of the drawings]
FIG. 1 is a front sectional view of a lever guide portion of an attracting and binding machine according to an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view of the lever guide portion shown in FIG. 1. FIG. 3 is a front cross-sectional view of the lever guide portion when an operation lever having a width between tip portions wider than a predetermined dimension is locked.
FIG. 4 is a front cross-sectional view of a lever guide portion when an operation lever having a width between tip portions narrower than a predetermined dimension is locked.
FIG. 5 is a front cross-sectional view of a lever guide portion when an operation lever having a narrower width between tip portions than a predetermined dimension is locked.
FIG. 6 is a partially cutaway side view of an attracting and binding machine proposed by the present applicant.
7 is a cross-sectional view taken along line X-X in FIG. 6 when an operating lever having a width between tip portions wider than a predetermined dimension is locked.
FIG. 8 is a cross-sectional view taken along the line X-X in FIG. 6 when an operating lever having a width between tip portions narrower than a predetermined dimension is locked.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Attracting and binding machine 2 Driver handle 3 Clincher arm 4 Actuating lever 4a Intermediate part 4b Tip part 4c Gripping part 7 Staple magazine 8 Clincher 20 Lever guide 21 Pin 22 Shaft part 23 Circular step part 31 Roller 32 Pivoting hole 33 Groove parts 34, 35 Flange 36 Circular recess 41 Washer

Claims

The base end of the clincher arm is pivotally attached to the driver handle of the stapler, the middle part of the operating lever is pivotally attached to the clincher arm, and the tip of the operating lever is freely rotatable to the lever guide provided on the driver handle. , Hook the tape stretched between the driver handle and the clincher arm around the object to be bundled, and press the grip provided on the base end side of the operating lever toward the driver handle. By closing the clincher arm and the clincher arm on the driver handle, the clincher of the clincher arm comes into contact with the clincher arm, and the leading end of the tape is overlapped and held downstream, and the overlapping portion of the tape is bound by staples and the driver handle. cutting the tape by the cutter blade provided on, and the lever guide portion A pin projecting from the side face of the driver handle, has a hinged possible pivot hole in the pin, it is composed of a roller of the sectional view substantially H-shape in which a groove on the outer peripheral surface, whereas, the actuating lever in the tip portion is curved to the rotational direction of the actuating lever, attract binding machine comprising the curved portion engaged rotatably to the grooves of the rollers,
The attraction binding machine, wherein the roller is formed so that a dimension between both flanges extending on both sides of the groove portion gradually increases toward an outer diameter of the roller .

The base end of the clincher arm is pivotally attached to the driver handle of the stapler, the middle part of the operating lever is pivotally attached to the clincher arm, and the tip of the operating lever is freely rotatable to the lever guide provided on the driver handle. , Hook the tape stretched between the driver handle and the clincher arm around the object to be bundled, and press the grip provided on the base end side of the operating lever toward the driver handle. By closing the clincher arm and the clincher arm on the driver handle, the clincher of the clincher arm comes into contact with the clincher arm, and the leading end of the tape is overlapped and held downstream, and the overlapping portion of the tape is bound by staples and the driver handle. The tape is cut by a cutter blade provided on the lever guide portion, The driver handle includes a pin protruding from a side surface and a substantially H-shaped roller having a groove portion on the outer peripheral surface having a pivot hole that can pivot on the pin. In the attracting and binding machine formed by bending the tip portion of the actuator lever in the turning direction of the operating lever and rotatably locking the curved portion to the groove portion of the roller,
The roller has a circular recess formed coaxially with the rotation center of the roller on the surface of the flange on the driver handle side, while the pin contacts the side surface of the driver handle and is larger than the pivot hole of the roller. A circular step portion having a diameter smaller than that of the circular recess portion is formed, and the roller is pivotally attached to the pin so that a flange surface on which the circular recess portion is formed contacts the circular step portion of the pin. An attraction binding machine.

To the roller is large driver handle side of the flange surface rotational center circular recess coaxial rollers is formed, whereas, the pin abuts against the side surface of the driver handle, and, than pivot hole of the roller wherein the radial circular stepped portion of smaller diameter than the circular recess is formed, characterized in that the roller so as to abut the flange surface of the circular recess formed in a circular stepped portion of the pin and pivotally mounted to said pin The attracting and binding machine according to claim 1 .