JP3343174B2 - Shredder paper feeder - Google Patents
Shredder paper feederInfo
- Publication number
- JP3343174B2 JP3343174B2 JP30545594A JP30545594A JP3343174B2 JP 3343174 B2 JP3343174 B2 JP 3343174B2 JP 30545594 A JP30545594 A JP 30545594A JP 30545594 A JP30545594 A JP 30545594A JP 3343174 B2 JP3343174 B2 JP 3343174B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- sheet
- thickness
- sheet bundle
- bundle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Crushing And Pulverization Processes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、廃棄文書などの用紙
を細断部のカッタで細断するシュレッダに適用し得る。
詳しくは、そのシュレッダに取り付けて使用し、用紙を
細断部へと供給する給紙装置に関する。The present invention can be applied to a shredder for shredding paper such as a waste document by a cutter at a shredding section.
More specifically, the present invention relates to a paper feeder that is used by being attached to the shredder and supplies paper to the shredding section.
【０００２】[0002]
【従来の技術】従来、この種の給紙装置では、一般に、
用紙を、一枚ずつ送り出すよりは効率がよいので複数枚
ずつ重ねて細断部に送り出している。ところが、その重
ね送りの場合には、用紙が細断部の細断能力を越えた厚
さの用紙束になって送り出されると、その用紙束で細断
部がロックすることがある。2. Description of the Related Art Conventionally, in this type of paper feeder, generally,
Since the sheet is more efficient than sending out one sheet at a time, a plurality of sheets are stacked and sent to the shredding section. However, in the case of the overlap feeding, if the sheet is sent out as a sheet bundle having a thickness exceeding the shredding ability of the shredding portion, the shredding portion may be locked by the sheet bundle.
【０００３】そこで、従来の給紙装置の中には、送り出
した用紙束の厚さを検知する紙厚検知手段を設け、その
紙厚検知手段で用紙束の厚さが一定以上であることを検
知したとき、警告装置を作動して警告したり、給紙用モ
ータの駆動を自動的に停止したりするものがあった。Therefore, a conventional sheet feeder is provided with a sheet thickness detecting means for detecting the thickness of the fed sheet bundle, and the sheet thickness detecting means determines that the thickness of the sheet bundle is not smaller than a certain value. In some cases, when a warning is detected, a warning device is activated to give a warning, or the driving of the paper feeding motor is automatically stopped.
【０００４】しかし、給紙用モータの駆動を自動的に停
止する場合は、細断処理作業が途中で中断して不便であ
り、また、作業再開のために給紙用モータを再駆動しな
ければならず、面倒である。警告をする場合も、警告後
速やかに用紙送りを停止しなければならず、面倒であ
り、同様に細断処理作業が中断して不便であった。However, when the driving of the paper feeding motor is automatically stopped, the shredding operation is interrupted halfway, which is inconvenient, and the paper feeding motor must be driven again to resume the operation. Must be troublesome. When a warning is issued, the paper feed must be stopped immediately after the warning, which is troublesome, and similarly, the shredding work is interrupted, which is inconvenient.
【０００５】そこで、出願人は、紙厚検知手段で用紙束
の厚さが一定以上であることを検知したとき、用紙搬送
をそのまま継続しながら、一方で搬送量を制限して細断
能力を越えた厚さの用紙束が細断部へ送り込まれないよ
うにする給紙装置を、すでに提案している。Therefore, when the paper thickness detecting means detects that the thickness of the bundle of sheets is equal to or more than a certain value, the applicant continues to convey the paper as it is, while restricting the amount of conveyance to reduce the shredding ability. A paper feeding device for preventing a bundle of sheets exceeding the thickness from being fed to the shredder has already been proposed.
【０００６】[0006]
【発明が解決しようとする課題】ところが、細断部の細
断能力は、正確には、カッタで細断する用紙束の細断断
面積（用紙束の厚さ×幅）と対応するため、従来のよう
に、ただ用紙束の厚さを調整するだけでは、細断能力を
越えた紙量の用紙束の送り込みによる細断部のロックを
未然に防止するには、不十分であった。However, since the shredding ability of the shredding portion exactly corresponds to the shredding cross-sectional area (thickness x width of the sheet bundle) of the sheet bundle to be shredded by the cutter, the As described above, simply adjusting the thickness of the sheet bundle is not sufficient to prevent the locking of the shredding portion due to the feeding of the sheet bundle with the amount of paper exceeding the shredding ability.
【０００７】そこで、この発明の目的は、シュレッダの
給紙装置において、細断能力を越えた紙量の用紙束の送
り込みにより細断部がロックすることを、搬送効率を低
下させることなく確実に防止することにある。SUMMARY OF THE INVENTION It is an object of the present invention to reliably lock a shredder in a paper feeder of a shredder by feeding a bundle of sheets exceeding the shredding capacity without lowering the transport efficiency. Is to prevent it.
【０００８】[0008]
【課題を解決するための手段】そのため、この発明は、
たとえば以下の図示実施例に示すように、積載用紙Ｐ
を、複数枚ずつ重ねた用紙束Ｓにして細断部へと送り出
すシュレッダの給紙装置において、用紙束Ｓを送り出す
前後給紙ローラ２０・２１や上下搬送ローラ３４・３５
のような給紙手段と、その給紙手段で送り出す用紙束Ｓ
の厚さｔを検知する紙厚検知手段４０と、その用紙束Ｓ
の紙幅を検知する紙幅検知手段１９と、その紙幅検知手
段１９で検知した用紙束Ｓの紙幅と前記紙厚検知手段４
０で検知した用紙束Ｓの厚さｔとから該用紙束Ｓの細断
断面積を求める計算手段と、その計算手段で求めた細断
断面積に応じて前記給紙手段で送り出す用紙束Ｓの厚さ
を調整する調整手段と、を備えるとともに、前記紙幅検
知手段１９を、前記給紙手段で送り出した用紙束Ｓの紙
幅を検知しうる位置に配置してなる、ことを特徴とす
る。Accordingly, the present invention provides
For example, as shown in the following illustrated embodiment,
In a shredder feeder that feeds a bundle of sheets S into a sheet bundle S by a plurality of sheets, and feeds the sheet bundle S to the shredding section.
And a sheet bundle S sent out by the sheet feeding means.
Paper thickness detecting means 40 for detecting the thickness t of the
Paper width detecting means 19 for detecting the paper width of the sheet bundle S detected by the paper width detecting means 19 and the paper thickness detecting means 4
Calculating means for calculating the shredded cross-sectional area of the sheet bundle S from the thickness t of the sheet bundle S detected at 0, and the thickness of the sheet bundle S sent out by the sheet feeding means according to the shredded cross-sectional area obtained by the calculating means. Rutotomoni and an adjustment means for adjusting of the width detection
The informing means 19 is a sheet of paper of the sheet bundle S sent out by the paper feeding means.
Formed by arranging at a position capable of detecting a width, and wherein the.
【０００９】[0009]
【００１０】[0010]
【作用】そして、給紙手段で積載用紙Ｐを、複数枚ずつ
重ねた用紙束Ｓにして細断部へと送り出す。しかして、
その送り出す用紙束Ｓの厚さｔを紙厚検知手段４０で検
知するとともに、給紙手段で用紙束Ｓを送り出した後に
その用紙束Ｓの紙幅を紙幅検知手段１９で検知する。そ
うして、その紙幅検知手段１９で検知した用紙束Ｓの紙
幅と紙厚検知手段４０で検知した用紙束Ｓの厚さｔとか
ら該用紙束Ｓの細断断面積を計算手段により求め、その
計算手段で求めた細断断面積に応じて給紙手段で送り出
す用紙束Ｓの厚さを調整手段により調整する。Then, the stacked sheets P are fed to the shredding section by the sheet feeding means as a sheet bundle S in which a plurality of sheets are stacked. Then
The thickness t of the sheet bundle S to be sent out is detected by the sheet thickness detecting unit 40, and the sheet width of the sheet bundle S is detected by the sheet width detecting unit 19 after the sheet bundle S is sent out by the sheet feeding unit . Then, from the sheet width of the sheet bundle S detected by the sheet width detecting means 19 and the thickness t of the sheet bundle S detected by the sheet thickness detecting means 40, the shredded cross-sectional area of the sheet bundle S is calculated by the calculating means. The thickness of the sheet bundle S to be sent out by the sheet feeding means is adjusted by the adjusting means according to the shredded sectional area obtained by the calculating means.
【００１１】[0011]
【００１２】[0012]
【実施例】以下、図面を参照しつつ、この発明の実施例
について説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】図１および図２に、シュレッダの給紙装置
を示す。そして、図１は給紙装置の駆動系の一部を含む
用紙搬送系の構成であり、図２は残りの駆動系の構成で
ある。 [0013] Figures 1 and 2 show a sheet feeding apparatus sheet Yuredda. FIG. 1 shows the configuration of a paper transport system including a part of the drive system of the paper feeder, and FIG. 2 shows the configuration of the remaining drive system.
【００１４】この給紙装置は、用紙搬送系を、図１中符
号ａおよび図２中符号ｂでそれぞれ示す横長な側板間に
設け、駆動系を、一方の側板ｂの外側（図中手前側）に
設ける。In this paper feeder, a paper transport system is provided between horizontally long side plates indicated by reference numerals a and b in FIG. 1, and a drive system is provided outside one side plate b (front side in FIG. 1). ).
【００１５】用紙搬送系には、その前側（図１中左側）
に、図示しないシュレッダの細断部へ用紙を案内する給
紙路１０を設け、その給紙路１０の後側（図１中右側）
に積載台１１を備える。The paper transport system has a front side (the left side in FIG. 1).
A paper feed path 10 for guiding the paper to the shredder of the shredder (not shown) is provided on the rear side (right side in FIG. 1) of the paper feed path 10.
And a loading table 11.
【００１６】給紙路１０は、側板ａ・ｂ間に上ガイド板
１２および下ガイド板１３を取り付けてその間でほぼ水
平に形成する。下ガイド板１３には、その右端部を下向
きにクランク状に曲げ、そこに載置段部１３ａを設け
る。The paper feed path 10 is formed substantially horizontally between an upper guide plate 12 and a lower guide plate 13 between the side plates a and b. The right end of the lower guide plate 13 is bent downward in a crank shape, and a mounting step 13a is provided there.
【００１７】積載台１１は、板状トレイ部１１ａの両側
を下向きに折り曲げ、その曲げ部１１ｂの後端側（図１
中右端側）に支軸１４を設け、その支軸１４を中心とし
て回動自在に側板ａ・ｂ間で支持する。そして、トレイ
部１１ａの先端側（図１中左端側）を載置段部１３ａ上
に乗せて、積載台１１をほぼ水平に保持してなる。しか
して、トレイ部１１ａには、紙有無検知手段１７および
紙幅検知手段１９を取り付けてなる。それら検知手段１
７・１９としては、たとえばマイクロスイッチやフォト
センサ等を用いる。The loading table 11 bends both sides of the plate-like tray portion 11a downward, and the rear end side of the bent portion 11b (FIG. 1).
A support shaft 14 is provided at the center right end) and is supported between the side plates a and b so as to be rotatable about the support shaft 14. The leading end (left end in FIG. 1) of the tray 11a is placed on the mounting step 13a, and the loading table 11 is held substantially horizontally. Thus, the paper presence / absence detecting means 17 and the paper width detecting means 19 are attached to the tray 11a. Their detection means 1
As 7.19, for example, a micro switch, a photo sensor, or the like is used.
【００１８】紙幅検知手段１９として、たとえば図３に
示すように、複数のフォトセンサ１９ａを用いた例を示
す。その例では、各フォトセンサ１９ａを、たとえば同
図（イ）に示すように、片側基準でセットした積載用紙
Ｐの幅方向に、所定の用紙サイズ（たとえばＡ５・Ｂ５
・Ａ４・Ｂ４・Ａ３）に応じて、間隔をおいて配置す
る。同図（ロ）には、センタ基準で積載用紙をセットし
た場合、同様に複数のフォトセンサ１９ａを間隔をおい
て配置した例を示す。そのように配置することで、紙幅
検知手段１９により用紙束の紙幅を所定用紙サイズに応
じて段階的に検知する。これにより、Ａ４・Ｂ４等の所
定用紙サイズごとに確実にその紙幅を検知することがで
きる。FIG. 3 shows an example in which a plurality of photo sensors 19a are used as the paper width detecting means 19, for example. In the example, each photo sensor 19a is set to a predetermined sheet size (for example, A5.B5) in the width direction of the stacked sheets P set on one side basis, as shown in FIG.
(A4, B4, A3). FIG. 11B shows an example in which a plurality of photosensors 19a are similarly arranged at intervals when a stack of sheets is set on the basis of a center. With such an arrangement, the paper width of the sheet bundle is detected stepwise by the paper width detecting means 19 according to the predetermined paper size. This makes it possible to reliably detect the paper width for each predetermined paper size such as A4 and B4.
【００１９】また、紙幅検知手段１９として、たとえば
図４に示すように、棒状のＣＣＤ素子を用い、そのＣＣ
Ｄ素子を、同図（イ）に示すように、片側基準でセット
した積載用紙Ｐの幅方向に、該用紙を直線的に横断して
配置することもできる。同図（ロ）には、積載用紙Ｐを
センタ基準でセットした場合、同様にＣＣＤ素子を積載
用紙Ｐを幅方向に横断して配置した例を示す。そのよう
に配置することで、紙幅検知手段により用紙束の紙幅を
所定用紙サイズに関わらず、その幅方向に連続的に検知
する。これにより、所定サイズ以外の用紙束の紙幅をも
検知することができる。As the paper width detecting means 19, for example, as shown in FIG.
As shown in FIG. 1A, the D element may be arranged so as to traverse the sheet linearly in the width direction of the stacked sheet P set on one side basis. FIG. 2B shows an example in which, when the stacking paper P is set on the basis of the center, the CCD elements are similarly arranged across the stacking paper P in the width direction. With such an arrangement, the paper width of the sheet bundle is continuously detected in the width direction by the paper width detecting means regardless of the predetermined paper size. Thus, it is possible to detect the width of a sheet bundle other than the predetermined size.
【００２０】また、用紙搬送系には、図１に示すよう
に、トレイ部１１ａの先端側の下方に、押上アーム１５
を備える。押上アーム１５は、板材をＬ状に曲げて先端
部に突部１５ａを設けてなる。そして、基端部を、側板
ａ・ｂ間で回動自在に支持するアーム軸１６に固定し、
突部１５ａをトレイ部１１ａの下側で上向きに配置して
なる。As shown in FIG. 1, a push-up arm 15 is provided below the leading end of the tray 11a.
Is provided. The push-up arm 15 is formed by bending a plate material into an L shape and providing a protruding portion 15a at a tip end. Then, the base end is fixed to an arm shaft 16 that rotatably supports between the side plates a and b,
The protrusion 15a is arranged upward below the tray 11a.
【００２１】しかして、積載台１１の上方には、その先
端側に前給紙ローラ２０を配置し、後端側に後給紙ロー
ラ２１を配置する。前給紙ローラ２０は、ローラ軸２２
を側板ａ・ｂ間に掛け渡して回転自在に支持する。そし
て、そのローラ軸２２に、回動フレーム２４を回動自在
に取り付けてなる。Thus, above the loading table 11, the front paper feed roller 20 is arranged at the front end side, and the rear paper feed roller 21 is arranged at the rear end side. The front feed roller 20 includes a roller shaft 22.
Is supported between the side plates a and b to be rotatable. A rotating frame 24 is rotatably attached to the roller shaft 22.
【００２２】回動フレーム２４は、平板部２４ａと、そ
の平板部２４ａの両側に設ける下向きの曲げ板部２４ｂ
とで形成する。また、その曲げ板部２４ｂの先端側（図
中左端側）よりに、固定軸２９を外向きに突出して設け
る。さらに、曲げ板部２４ｂの後端側に、後給紙ローラ
２１をローラ軸２５を支点として回動自在に取り付け
る。そして、両ローラ２０・２１のローラ軸２２・２５
上に、それぞれプーリ２６・２７を取り付けてなる。The rotating frame 24 has a flat plate portion 24a and downward bent plate portions 24b provided on both sides of the flat plate portion 24a.
And formed. Further, a fixed shaft 29 is provided so as to protrude outward from the front end side (left end side in the figure) of the bent plate portion 24b. Further, the rear paper feed roller 21 is rotatably mounted on the rear end side of the bent plate portion 24b with the roller shaft 25 as a fulcrum. And the roller shafts 22 and 25 of both rollers 20 and 21
The pulleys 26 and 27 are respectively attached on top.
【００２３】また、回動フレーム２４には、その後端側
に、駆動系の一部であるローラ駆動手段Ｅを備える。ロ
ーラ駆動手段Ｅには、平板部２４ａ上に取り付けたモー
タ３２と、そのモータ３２の駆動力を後給紙ローラ２１
へと伝達する歯車列Ｇ5を備える。そして、曲げ板部２
４ｂで歯車列Ｇ5のプーリ３３を支持し、そのプーリ３
３とプーリ２７間に回転伝達ベルト２８を掛け渡してな
る。しかして、図示のように、積載台１１の用紙載置面
１１ｃ上に用紙を積載した状態では、その積載用紙Ｐ上
に後給紙ローラ２１が乗る。The rotating frame 24 is provided at its rear end with a roller driving means E which is a part of a driving system. The roller driving means E includes a motor 32 mounted on the flat plate portion 24a and a driving force of the motor 32.
Comprising a gear train G 5 that transmits to. And the bending plate part 2
Supporting the pulley 33 of the gear train G 5 in 4b, the pulley 3
A rotation transmission belt 28 is stretched between the pulley 3 and the pulley 27. As shown in the drawing, when the sheets are stacked on the sheet mounting surface 11c of the stacking table 11, the rear paper feed roller 21 rides on the stacked sheets P.
【００２４】さらに、上述の用紙搬送系において、前給
紙ローラ２０の前側には、ローラ軸２２と平行にレバー
軸３０を配置し、そのレバー軸３０を側板ａ・ｂ間で回
動自在に支持する。そして、該レバー軸３０に回動レバ
ー３１を固定し、その回動レバー３１の先端３１ａを固
定軸２９の下側に向けて配置してなる。Further, in the above-described paper transport system, a lever shaft 30 is disposed in front of the front paper feed roller 20 in parallel with the roller shaft 22, and the lever shaft 30 is rotatable between the side plates a and b. To support. Then, the rotating lever 31 is fixed to the lever shaft 30, and the tip 31 a of the rotating lever 31 is arranged to face below the fixed shaft 29.
【００２５】また、レバー軸３０の前側に、上搬送ロー
ラ３４を配置し、その下側に下搬送ローラ３５を配置す
る。それら上下搬送ローラ３４・３５は、給紙路１０内
で接触し、各々のローラ軸３６・３７を側板ａ・ｂ間に
掛け渡して回転自在に支持する。そのうち上搬送ローラ
３４は、ローラ軸３６を撓まない強固なものとする一
方、下搬送ローラ３５は、ロ−ラ軸３７を可撓性の有る
ものとする。そして、ローラ軸３６上にプーリ３８を設
け、そのプーリ３８と前給紙ローラ２０のプーリ２６間
に回転伝達ベルト３９を掛け渡してなる。An upper transport roller 34 is disposed in front of the lever shaft 30, and a lower transport roller 35 is disposed below the upper transport roller 34. The upper and lower transport rollers 34 and 35 are in contact with each other in the paper feed path 10 and support the respective roller shafts 36 and 37 between the side plates a and b so as to be rotatable. Among them, the upper transport roller 34 has a rigid roller shaft 36 that does not bend, while the lower transport roller 35 has a roller shaft 37 that has flexibility. A pulley 38 is provided on the roller shaft 36, and a rotation transmission belt 39 is stretched between the pulley 38 and the pulley 26 of the front paper feed roller 20.
【００２６】しかして、前給紙ローラ２０の前側に、上
ガイド板１２で支持する紙厚検知手段４０を配置する。
紙厚検知手段４０は、たとえばフィラ４１と光反射型の
マイクロ変位センサ４２とで構成する。フィラ４１は、
両搬送ローラ３４・３５間を通る用紙束の厚さに応じ
て、軸４１ｂを支点として回動自在に設ける。マイクロ
変位センサ４２は、図示しないが発光部および受光部を
フィラ４１の基端部４１ａと対向させて設ける。そし
て、そのマイクロ変位センサ４２の発光部から発してフ
ィラ４１の基端部４１ａで反射して受光部に入る反射光
に基づきフィラ４１の変位量を感知して用紙束の厚さを
検知する。The paper thickness detecting means 40 supported by the upper guide plate 12 is disposed in front of the front paper feed roller 20.
The paper thickness detecting means 40 includes, for example, a filler 41 and a light reflection type micro displacement sensor 42. Fira 41
In accordance with the thickness of the sheet bundle passing between the two conveying rollers 34 and 35, the sheet bundle is rotatably provided around the shaft 41b as a fulcrum. Although not shown, the micro displacement sensor 42 is provided with a light emitting unit and a light receiving unit facing the base end 41 a of the filler 41. Then, the displacement of the filler 41 is detected based on the reflected light emitted from the light emitting portion of the micro displacement sensor 42 and reflected by the base end portion 41a of the filler 41 to enter the light receiving portion, thereby detecting the thickness of the sheet bundle.
【００２７】ところで、上述した用紙搬送系において、
前給紙ローラ２０は、側板ａ・ｂ間で回転自在に支持す
るとともに、図２に示すように、その側板ａ・ｂに設け
る長穴４６にローラ軸２２の両端を貫通して上下に移動
可能に支持する。そして、長穴４６に嵌合した軸受４３
をローラ軸２２上に設け、該軸受４３を付勢ばね４４で
常時下向きに付勢して長穴４６の穴縁に当て、前給紙ロ
ーラ２０を所定高さ位置に保持してなる。一方、その前
給紙ローラ２０の近くで側板ｂの内側に、マイクロ検知
スイッチ４５を取り付ける。そして、マイクロ検知スイ
ッチ４５のアクチュエータ４５ａを常時ローラ軸２２に
押し当ててなる。By the way, in the above-described paper transport system,
The front feed roller 20 rotatably supports between the side plates a and b, and moves up and down through both ends of the roller shaft 22 through long holes 46 provided in the side plates a and b as shown in FIG. Support as much as possible. Then, the bearing 43 fitted into the long hole 46
Is provided on the roller shaft 22, the bearing 43 is constantly urged downward by an urging spring 44 to hit the edge of the elongated hole 46, and the front feed roller 20 is held at a predetermined height position. On the other hand, a micro detection switch 45 is attached near the front paper feed roller 20 and inside the side plate b. Then, the actuator 45 a of the micro detection switch 45 is constantly pressed against the roller shaft 22.
【００２８】さて、駆動系には、上述のローラ駆動手段
Ｅの他に、図２において、符号Ａで示す積載台駆動手段
と、その上側に設ける回動レバー駆動手段Ｂを備え、そ
れら駆動手段Ｂ・Ａの前側にそれぞれローラ駆動手段Ｃ
・Ｄを備える。The driving system includes, in addition to the roller driving means E described above, a loading table driving means indicated by reference numeral A in FIG. 2 and a rotating lever driving means B provided above the driving means. Roller driving means C on the front side of BA
・ D is provided.
【００２９】そして、積載台駆動手段Ａには、モータ５
０と、そのモータ５０の駆動力を押上アーム１５のアー
ム軸１６に伝達する歯車列Ｇ1を備える。回動レバー駆
動手段Ｂには、モータ５１と、そのモータ５１の駆動力
を回動レバー３１のレバー軸３０に伝達する歯車列Ｇ2
を備える。ローラ駆動手段Ｃには、モータ５２と、その
モータ５２の駆動力を上搬送ローラ３４のローラ軸３６
に伝達する歯車列Ｇ3を備える。ローラ駆動手段Ｄに
は、モータ５３と、そのモータ５３の駆動力を下搬送ロ
ーラ３５のローラ軸３７に伝達する歯車列Ｇ4を備え
る。The loading table driving means A includes a motor 5
0, and a gear train G 1 for transmitting the driving force of the motor 50 to the arm shaft 16 of the push-up arm 15. The rotating lever driving means B includes a motor 51 and a gear train G 2 for transmitting the driving force of the motor 51 to the lever shaft 30 of the rotating lever 31.
Is provided. The roller driving means C includes a motor 52 and a driving force of the motor 52.
Comprising a gear train G 3 for transmitting to. The roller drive means D, comprises a motor 53, a gear train G 4 which transmits the driving force of the motor 53 to the roller shaft 37 of the lower conveying roller 35.
【００３０】ところで、上述の給紙装置には、図示しな
いが、紙幅検知手段１９で検知した用紙束の紙幅と紙厚
検知手段４０で検知した用紙束の厚さとから、用紙束の
細断断面積を求める計算手段を備える。また、その計算
手段で求めた用紙束の細断断面積に応じて、ローラ駆動
手段Ｅの駆動を適宜変速制御して後給紙ローラ２１の回
転速度を調節する調整手段を備えてなる。Although not shown, the above-mentioned sheet feeding device uses the paper width of the sheet bundle detected by the sheet width detecting means 19 and the thickness of the sheet bundle detected by the sheet thickness detecting means 40 to determine the cross-sectional area of the sheet bundle. Is provided. Further, an adjusting means for adjusting the rotational speed of the rear paper feed roller 21 by appropriately controlling the speed of the driving of the roller driving means E in accordance with the cross-sectional area of the sheet bundle obtained by the calculating means is provided.
【００３１】しかして、上述した構成の給紙装置は、適
宜シュレッダの本体上に取り付けて使用する。The paper feeder having the above-described configuration is used by being appropriately mounted on the main body of the shredder.
【００３２】さて、その使用時は、たとえば適宜操作ス
イッチを操作し回動レバー駆動手段Ｂのモータ５１を駆
動して回動レバー３１を回動する。そして、その回動レ
バー３１の先端部３１ａを固定軸２９に当て回動フレー
ム２４をある角度位置まで回動して積載台１１上を開放
する。しかして、その積載台１１上に廃棄用紙を積載す
る。そうして、積載台１１上に積載用紙Ｐの有ることを
紙有無検知手段１７で検知し、その積載用紙Ｐの紙幅を
紙幅検知手段で１９で検知する。At the time of use, for example, the operation switch is appropriately operated to drive the motor 51 of the rotating lever driving means B to rotate the rotating lever 31. Then, the leading end 31a of the rotating lever 31 is brought into contact with the fixed shaft 29, and the rotating frame 24 is rotated to a certain angle position to open the loading table 11. Then, the waste paper is loaded on the loading table 11. Then, the presence / absence of the loaded paper P on the loading table 11 is detected by the paper presence / absence detecting means 17, and the paper width of the loaded paper P is detected by the paper width detecting means 19.
【００３３】しかる後、操作スイッチを操作して回動レ
バー駆動手段Ｂのモータ５１を逆駆動し、回動レバー３
１を逆方向に回動して回動フレーム２４を戻し、後給紙
ローラ２１を積載用紙上に乗せる。そして、図示しない
給紙スタートスイッチをオンする。しかして、紙有無検
知手段１７で用紙が有ることの検知信号に基づき、図示
省略するが、制御手段により積載台駆動手段Ａのモータ
５０を作動し、そのモータ５０の駆動力を歯車列Ｇ1で
アーム軸１６に伝達して押上アーム１５を回動し、その
押上アーム１５で積載台１１を回動してその先端側を押
し上げる。そして、積載用紙Ｐの先端側が前給紙ローラ
２０に当たると、アクチュエータ４５ａが僅かに上方に
動いてマイクロ検知スイッチ４５をオンし、積載用紙Ｐ
の最上位のものが所定高さ位置にあることを検知する。
すると、その検知信号に基づき、上述の制御手段で積載
台駆動手段Ａのモータ５０の作動を停止し、図５に示す
ように、この所定高さ位置で積載台１１を保持する。こ
のとき、紙厚検知手段４０は、図６（イ）に示すよう
に、紙厚を検知していない状態にある。Thereafter, the operation switch is operated to reversely drive the motor 51 of the rotating lever driving means B, and the rotating lever 3
1 is rotated in the reverse direction to return the rotating frame 24, and the rear paper feed roller 21 is placed on the stacked paper. Then, a feed start switch (not shown) is turned on. Although not shown, the control unit activates the motor 50 of the loading table drive unit A based on the detection signal indicating that there is a sheet by the paper presence / absence detection unit 17, and the driving force of the motor 50 is transmitted to the gear train G 1. , The push-up arm 15 is turned, and the push-up arm 15 turns the loading table 11 to push up the distal end thereof. Then, when the leading end side of the loaded paper P hits the front paper feed roller 20, the actuator 45a moves slightly upward to turn on the micro detection switch 45, and the loaded paper P
Is detected at the predetermined height position.
Then, based on the detection signal, the operation of the motor 50 of the loading table driving means A is stopped by the above-described control means, and the loading table 11 is held at this predetermined height position as shown in FIG. At this time, as shown in FIG. 6A, the paper thickness detecting means 40 is in a state where the paper thickness is not detected.
【００３４】そして、ローラ駆動手段Ｃのモータ５２を
駆動し、その駆動力を歯車列Ｇ3により伝達して上搬送
ローラ３４を回転するとともに、ローラ駆動手段Ｄのモ
ータ５３を駆動し、その駆動力を歯車列Ｇ4により伝達
して下搬送ローラ３５を回転する。しかして、回転伝達
ベルト３９を介して上搬送ローラ３４と同期して前給紙
ローラ２０を回転する。また、ローラ駆動手段Ｅのモー
タ３２を駆動し、その駆動力を歯車列Ｇ5および回転伝
達ベルト２８を介して伝達して後給紙ローラ２１を回転
する。そして、図７に示すように、給紙ローラ２０・２
１で積載用紙Ｐを繰り出す。[0034] Then, by driving the motor 52 of the roller drive means C, together with the roll on the conveying roller 34 and the driving force is transmitted by the gear train G 3, and drives the motor 53 of the roller driving means D, the driving rotating the lower conveying roller 35 a force is transmitted by the gear train G 4. Thus, the front feed roller 20 is rotated in synchronization with the upper transport roller 34 via the rotation transmission belt 39. Further, by driving the motor 32 of the roller driving means E, for rotating the rear paper feed roller 21 and the driving force is transmitted through the gear train G 5 and the rotation transmission belts 28. Then, as shown in FIG.
In step 1, the stacking paper P is fed out.
【００３５】そのとき、最上位の一枚目の用紙ｓを距離
ｄ（ローラ軸２５と積載用紙Ｐの後端間距離）繰り出す
と、後給紙ローラ２１が２枚目と接触し、その２枚目を
繰り出し始める。同様に、２枚目を同じ距離ｄ送った後
に３枚目に接触し、図８に示すように、３枚目を繰り出
し始める。結局、用紙ｓを距離ｄずつずれた状態で用紙
束Ｓを形成しながら連続して送り出し、上下搬送ローラ
３４・３５で給紙路１０を通してシュレッダの細断部へ
と搬送する。そのとき、図９に示すように用紙ｓの長さ
をＬとすると、（ｎ−１）＜Ｌ／ｄ≦ｎ枚の関係となっ
て、通常、用紙はｎ枚送られ、ｎ×（用紙１枚の厚さ）
＝（用紙束Ｓの厚さｔ）の関係となる。At this time, when the uppermost first sheet s is advanced by a distance d (distance between the roller shaft 25 and the rear end of the stacked sheets P), the rear paper feed roller 21 comes into contact with the second sheet, and Start paying out the first sheet. Similarly, after the second sheet has been fed by the same distance d, it comes into contact with the third sheet, and as shown in FIG. 8, the third sheet starts to be fed out. As a result, the sheet s is continuously fed out while forming a sheet bundle S while being shifted by the distance d, and is conveyed to the shredder of the shredder through the paper feed path 10 by the upper and lower conveying rollers 34 and 35. At this time, assuming that the length of the sheet s is L as shown in FIG. 9, the relationship of (n-1) <L / d ≦ n sheets is satisfied, and usually, n sheets are fed and nx (sheet One sheet thickness)
= (Thickness t of sheet bundle S).
【００３６】そして、この搬送時、紙厚検知手段４０の
フィラ４１が用紙束Ｓの厚さｔに応じて図６（イ）の状
態から時計方向に回動して同図（ロ）に示す状態とな
り、そのときのフィラ４１の変位量をマイクロ変位セン
サ４２で感知して用紙束Ｓの厚さｔを検知する。しかし
て、そのように検知した用紙束Ｓの厚さと、上記のよう
に紙幅検知手段１９で検知した用紙束Ｓの紙幅とから、
前記計算手段により用紙束Ｓの細断断面積を求める。そ
うして、その細断断面積が予め設定した所定値Ｘ以上で
あるときは、上述した調整手段により、ローラ駆動手段
Ｅの駆動を減速制御して後給紙ローラ２１の回転速度を
遅くする。すると、その遅い速度に応じて、後給紙ロー
ラ２１で繰り出す用紙ｓの後端のずれが、図１０に示す
ように、ｄからｄ1に長くなる。そのとき、（ｍ−１）
＜Ｌ／ｄ1≦ｍ枚となり、ｍ＜ｎの関係となる。つま
り、それだけ後給紙ローラ２１で繰り出す用紙枚数が減
少し、その結果、用紙束Ｓの細断断面積が小さくなる。
そして、用紙束Ｓが厚くならないように調整する。At the time of this conveyance, the filler 41 of the paper thickness detecting means 40 rotates clockwise from the state shown in FIG. 6A in accordance with the thickness t of the sheet bundle S, as shown in FIG. In this state, the displacement amount of the filler 41 at that time is sensed by the micro displacement sensor 42 to detect the thickness t of the sheet bundle S. Then, from the thickness of the sheet bundle S thus detected and the sheet width of the sheet bundle S detected by the sheet width detecting unit 19 as described above,
The section of the sheet bundle S is obtained by the calculation means. When the shredded cross-sectional area is equal to or larger than the predetermined value X, the driving of the roller driving means E is controlled to be reduced by the above-described adjusting means, and the rotation speed of the rear paper feed roller 21 is reduced. Then, in accordance with the slow speed, the deviation of the trailing edge of the sheet s unwinding in the rear paper feed roller 21 is, as shown in FIG. 10, becomes longer from d to d 1. Then, (m-1)
<L / d 1 ≦ m, and m <n. That is, the number of sheets fed out by the rear sheet feed roller 21 decreases accordingly, and as a result, the shredded cross-sectional area of the sheet bundle S decreases.
Then, the sheet bundle S is adjusted so as not to be thick.
【００３７】逆に、そうして用紙束Ｓの厚さｔが薄くな
り、その細断断面積が所定値Ｘ以下であるときは、上述
の調整手段により、ローラ駆動手段Ｅの駆動を加速制御
して後給紙ローラ２１の回転速度を速くする。すると、
その速い速度に応じて、後給紙ローラ２１で繰り出す用
紙ｓの後端のずれが、図１１に示すように、ｄからｄ2
に短くなる。つまり、それだけ後給紙ローラ２１で繰り
出す用紙枚数が増加し、その結果、用紙束Ｓの細断断面
積が大きくなり、所定値Ｘに近づく。そして、用紙束Ｓ
の厚さが増すように調整する。Conversely, when the thickness t of the sheet bundle S becomes thinner and the cross-sectional area thereof is equal to or smaller than the predetermined value X, the driving of the roller driving means E is accelerated by the adjusting means. Then, the rotation speed of the rear paper feed roller 21 is increased. Then
In accordance with the high speed, the shift of the rear end of the paper s fed by the rear paper feed roller 21 is changed from d to d 2 as shown in FIG.
Becomes shorter. That is, the number of sheets fed out by the rear sheet feed roller 21 increases accordingly, and as a result, the cross-sectional area of the sheet bundle S increases and approaches the predetermined value X. Then, the sheet bundle S
Adjust so that the thickness increases.
【００３８】ところで、この発明では、たとえば図１２
に示すように、上述した紙幅検知手段１９を、用紙搬送
方向イ下流側に配置する構成にする。その紙幅検知手段
１９は、たとえば上ガイド板１２に給紙路１０に向けて
取り付ける。そして、前後給紙ローラ２０・２１で積載
用紙Ｐを送り出した後、給紙路１０を通過するときに、
この紙幅検知手段１９で用紙束Ｓの紙幅を検知する。In the present invention, for example, FIG.
As shown in, a configuration where the sheet width detecting means 19 described above, arranged in the sheet conveying direction b downstream. The paper width detecting means 19 is attached to, for example, the upper guide plate 12 toward the paper feed path 10. Then, after the stacked paper P is sent out by the front and rear paper feed rollers 20 and 21 and passes through the paper feed path 10,
The sheet width of the sheet bundle S is detected by the sheet width detecting means 19.
【００３９】しかして、異なる幅サイズの用紙の混載し
た積載用紙を送り出す場合のように、送り出し後に途中
で紙幅が変わることがあっても、その変わった紙幅を紙
幅検知手段１９で検知し、その紙幅と紙厚検知手段４０
で検知した厚さとから用紙束Ｓの細断断面積を求め、そ
の変化した細断断面積に適応して、後給紙ローラ２１の
回転速度を変更して用紙束の厚さを調整する。However, even when the paper width may change in the middle after the paper is fed out, as in the case of feeding out a stack of papers of different widths, the changed paper width is detected by the paper width detecting means 19. Paper width and paper thickness detecting means 40
The thickness of the sheet bundle is adjusted by changing the rotation speed of the post-feed roller 21 in accordance with the changed cross-sectional area based on the thickness of the sheet bundle S obtained from the thickness detected in step (1).
【００４０】また、以上の実施例では、送り出す用紙束
の細断断面積に応じて、特に後給紙ローラ２１の回転速
度を変えることにより、用紙束の厚さを調整した。しか
し、この発明では、たとえば以下の実施例に示す構成に
より、同様に用紙束の細断断面積に応じて用紙束の厚さ
を調整することもできる。In the above embodiment, the thickness of the sheet bundle is adjusted by changing the rotation speed of the post-feed roller 21 in accordance with the sectional area of the sheet bundle to be fed. However, according to the present invention, the thickness of the sheet bundle can be similarly adjusted according to the shredded cross-sectional area of the sheet bundle by the configuration shown in the following embodiment.
【００４１】つまり、たとえば図１２に示す上搬送ロー
ラ３４を正転送りローラとする一方、下搬送ローラ３５
を正逆反転可能なリバーシブルローラとして構成する。
そして、用紙束の細断断面積が所定値Ｘ以下であると
き、正転送りローラ３４およびリバーシブルローラ３５
の双方を正転する一方、所定値Ｘ以上であるときは、リ
バーシブルローラ３５を逆転して用紙束を積載台１１上
に戻すことにより、用紙束の厚さを調整する。That is, for example, the upper transport roller 34 shown in FIG.
Are configured as reversible rollers capable of reversing forward and reverse.
When the cross-sectional area of the sheet bundle is equal to or smaller than the predetermined value X, the forward transfer roller 34 and the reversible roller 35
Are rotated forward, while when the value is equal to or more than the predetermined value X, the thickness of the sheet bundle is adjusted by rotating the reversible roller 35 in the reverse direction and returning the sheet bundle to the loading table 11.
【００４２】[0042]
【発明の効果】したがって、この発明によれば、給紙
時、用紙束の厚さだけではなく、その紙厚と紙幅から求
められるカッタによる用紙束の細断断面積に応じて、給
紙手段で送り出す用紙束の厚さを調整する構成とし、こ
れにより、細断能力を越えた紙量の用紙束が送り込まれ
て細断部がロックすることを確実に防止することができ
る。Effect of the Invention] Thus, according to the present invention, when paper feeding, not only the thickness of the sheet bundle, in accordance with the shredding sectional area of the sheet bundle by the cutter obtained from the sheet thickness and width, in the sheet feeding means The configuration is such that the thickness of the sheet bundle to be sent out is adjusted, whereby it is possible to reliably prevent the sheet bundle having the amount of paper exceeding the shredding ability from being fed in and locking the shredding portion.
【００４３】しかも、給紙手段で送り出した後に用紙束
の紙幅を紙幅検知手段により検知するから、たとえば異
なる幅サイズの用紙の混載した積載用紙を送り出す場合
にも、実際に送り出した用紙に適応して調整手段により
用紙搬送量を調整することができる。[0043] Moreover, Luca et be detected by the paper width detecting means width of the sheet bundle after feeding by the sheet feeding means, for example, when feeding the stacked sheets were embedded in the paper of different widths sizes
Also, by adjusting means to adapt to the paper actually sent
The paper transport amount can be adjusted .
【図１】シュレッダの給紙装置で、その駆動系の一部を
含む用紙搬送系を示す概略構成図である。[1] In the sheet feeding apparatus sheet Yuredda is a schematic diagram illustrating a sheet transporting system comprising a portion of the drive system.
【図２】その残りの駆動系を示す概略構成図である。FIG. 2 is a schematic configuration diagram showing the remaining drive system.
【図３】（イ）は片側基準で（ロ）はセンタ基準でセッ
トした所定用紙サイズに応じてそれぞれ紙幅検知手段を
間隔をおいて設置した配置構成図である。FIG. 3A is an arrangement configuration diagram in which paper width detecting means are installed at intervals according to a predetermined paper size set on a one-side basis and on a center basis.
【図４】（イ）は片側基準で（ロ）はセンタ基準でセッ
トした積載用紙の幅方向にそれぞれ紙幅検知手段を横断
して設置した配置構成図である。FIGS. 4A and 4B are arrangement configuration diagrams in which the sheet width detecting means are installed across the sheet width detecting means in the width direction of the stacked sheets set on the one side basis and the center basis, respectively.
【図５】その給紙装置の給紙レディ状態説明図である。FIG. 5 is an explanatory diagram of a paper feed ready state of the paper feeder.
【図６】（イ）は紙厚検知手段による紙厚非検知状態を
示し、（ロ）は紙厚検知状態を示す状態説明図である。FIG. 6A is a state explanatory diagram showing a paper thickness non-detection state by the paper thickness detecting means, and FIG. 6B is a state explanatory diagram showing a paper thickness detection state.
【図７】この給紙装置における給紙開始直後の状態説明
図である。FIG. 7 is an explanatory diagram illustrating a state immediately after the start of sheet feeding in the sheet feeding apparatus.
【図８】後給紙ローラが２枚目の用紙に接触した後の状
態を示す状態説明図である。FIG. 8 is a state explanatory view showing a state after the rear paper feed roller contacts a second sheet.
【図９】用紙をずらせて用紙束にして送り出す状態を示
す状態説明図である。FIG. 9 is an explanatory diagram showing a state in which the sheets are shifted and sent out as a sheet bundle.
【図１０】後給紙ローラの回転速度を遅くして用紙のず
れを大きくしたときの状態説明図である。FIG. 10 is an explanatory diagram illustrating a state in which the rotational speed of a rear paper feed roller is reduced to increase the deviation of a sheet.
【図１１】後給紙ローラの回転速度を速くして用紙のず
れを小さくしたときの状態説明図である。FIG. 11 is an explanatory diagram illustrating a state in which the rotation speed of the rear paper feed roller is increased to reduce the deviation of the paper.
【図１２】この発明の実施例である給紙装置の前側の部
分概略構成図である。12 is a partial schematic diagram of a front side of the sheet feeding device is a real施例of the present invention.
１９ 紙幅検知手段 ２０・２１ 前後給紙ローラ（給紙手段） ３４・３５ 上下搬送ローラ（給紙手段） ４０ 紙厚検知手段 Ｐ 積載用紙 Ｓ 用紙束 ｔ 用紙束の厚さ 19 Paper width detecting means 20 ・ 21 Front and rear paper feed rollers (paper feeding means) 34 ・ 35 Vertical conveyance rollers (paper feeding means) 40 Paper thickness detecting means P Stacked paper S Paper bundle t Thickness of paper bundle
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B02C 18/00 - 18/44 Continuation of front page (58) Field surveyed (Int.Cl. 7 , DB name) B02C 18/00-18/44
Claims (1)
して細断部へと送り出すシュレッダの給紙装置におい
て、 用紙束を送り出す給紙手段と、その給紙手段で送り出す
用紙束の厚さを検知する紙厚検知手段と、その用紙束の
紙幅を検知する紙幅検知手段と、その紙幅検知手段で検
知した用紙束の紙幅と前記紙厚検知手段で検知した用紙
束の厚さとから該用紙束の細断断面積を求める計算手段
と、その計算手段で求めた細断断面積に応じて前記給紙
手段で送り出す用紙束の厚さを調整する調整手段と、を
備えるとともに、 前記紙幅検知手段を、前記給紙手段で送り出した用紙束
の紙幅を検知しうる位置に配置し てなる、シュレッダの
給紙装置。1. A stack of sheets stacked on a plurality of sheets.
To feed the shredder to the shredder
Paper feeding means for sending out a bundle of paper
A sheet thickness detecting means for detecting the thickness of the sheet bundle;
Paper width detecting means for detecting the paper width, and detecting by the paper width detecting means.
The paper width of the paper bundle and the paper detected by the paper thickness detecting means
Calculating means for determining the cross-sectional area of the sheet bundle from the thickness of the bundle
And the paper feed according to the shredded cross-sectional area obtained by the calculation means.
Adjusting means for adjusting the thickness of the sheet bundle sent out by the means.
PreparationAlong with The sheet bundle sent out by the sheet feeding unit by the sheet width detecting unit.
And place it where the paper width can be detected. Shredder
Paper feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30545594A JP3343174B2 (en) | 1994-11-15 | 1994-11-15 | Shredder paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30545594A JP3343174B2 (en) | 1994-11-15 | 1994-11-15 | Shredder paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08131862A JPH08131862A (en) | 1996-05-28 |
| JP3343174B2 true JP3343174B2 (en) | 2002-11-11 |
Family
ID=17945359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30545594A Expired - Fee Related JP3343174B2 (en) | 1994-11-15 | 1994-11-15 | Shredder paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3343174B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006036136A1 (en) * | 2006-07-28 | 2008-01-31 | Martin Yale International Gmbh | Paper shredder i.e. document annihilator, for cutting e.g. paper, has thickness measuring device arranged in area of inlet for measuring thickness of flat material and designed in contactless working manner as capacitive measuring device |
| TWI302479B (en) * | 2006-10-20 | 2008-11-01 | Primax Electronics Ltd | Shredder |
| GB2451513B (en) | 2007-08-02 | 2012-04-18 | Acco Uk Ltd | A shredding machine |
| TWI346002B (en) * | 2008-12-01 | 2011-08-01 | Primax Electronics Ltd | Shredder with detecting mechanism for width and thickness of shredded object |
| TWI367784B (en) * | 2009-09-11 | 2012-07-11 | Primax Electronics Ltd | Variable-frequency controlling system of shredder and controlling method thereof |
-
1994
- 1994-11-15 JP JP30545594A patent/JP3343174B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08131862A (en) | 1996-05-28 |
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