JPH08131862A - Paper feeder of shredder - Google Patents
Paper feeder of shredderInfo
- Publication number
- JPH08131862A JPH08131862A JP30545594A JP30545594A JPH08131862A JP H08131862 A JPH08131862 A JP H08131862A JP 30545594 A JP30545594 A JP 30545594A JP 30545594 A JP30545594 A JP 30545594A JP H08131862 A JPH08131862 A JP H08131862A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- sheet
- thickness
- bundle
- width
- 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.)
- Granted
Links
Landscapes
- Crushing And Pulverization Processes (AREA)
Abstract
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。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can be applied to a shredder for shredding paper such as discarded documents with a cutter in a shredding section.
More specifically, the present invention relates to a paper feeding device that is used by being attached to the shredder and that feeds paper to the shredder.
【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,
It is more efficient than sending the sheets one by one, so multiple sheets are stacked and sent to the shredder. However, in the case of the overlap feeding, when the sheets are fed in a bundle of sheets having a thickness exceeding the shredding capacity 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 paper feeding device is provided with a paper thickness detecting means for detecting the thickness of the fed paper bundle, and the paper thickness detecting means confirms that the thickness of the paper bundle is not less than a certain value. In some cases, when it is detected, a warning device is activated to give a warning, or the drive 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, if the drive of the paper feed motor is automatically stopped, the shredding work is interrupted halfway, which is inconvenient, and the paper feed motor must be restarted to restart the work. It must be troublesome. Even when a warning is given, the paper feeding must be stopped immediately after the warning, which is troublesome, and similarly, the shredding processing 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 applicant detects that the thickness of the sheet bundle is more than a certain value by the sheet thickness detecting means, the sheet conveying is continued as it is, while the conveying amount is limited to reduce the shredding ability. A paper feeding device that prevents a paper bundle having an excessive 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 capacity of the shredding portion corresponds to the shredding cross-sectional area (thickness of paper stack × width) of the paper stack to be shredded by the cutter, it is conventionally required. As described above, merely adjusting the thickness of the sheet bundle is not sufficient to prevent the lock of the shredded portion due to the feeding of the sheet bundle having the paper amount 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 Therefore, an object of the present invention is to reliably prevent the shredding portion from being locked by the feeding of a sheet bundle having a paper amount exceeding the shredding capacity in the paper feeding device of the shredder without lowering the transportation efficiency. To prevent.
【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厚さを
調整する調整手段と、を備えてなることを特徴とする。Therefore, the present invention provides
For example, as shown in the illustrated embodiment below, the stacked paper P
In a paper feeding device of a shredder that feeds a plurality of stacked sheets S to a shredder, a front and rear feed rollers 20 and 21 and upper and lower feeding rollers 34 and 35 that feed the sheet bundle S
And a sheet bundle S sent 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, the paper width of the sheet bundle S detected by the paper width detecting means 19, and the paper thickness detecting means 4
Calculation means for obtaining the shredded 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 paper feeding means according to the shredded sectional area obtained by the computing means And adjusting means for adjusting.
【０００９】請求項２に記載のものは、たとえば以下の
図示実施例に示すように、請求項１に記載のシュレッダ
の給紙装置において、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。According to a second aspect of the present invention, for example, in the shredder sheet feeding apparatus according to the first aspect, the sheet width detecting means 19 is fed by the sheet feeding means as shown in the following illustrated embodiment. It is characterized in that it is arranged at a position where the width of the sheet bundle S can be detected.
【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、その用紙束Ｓの紙幅を紙幅検知手段１
９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 stacking sheet P is sent to the shredding section by the sheet feeding means into a sheet bundle S in which a plurality of sheets are stacked. Then
The thickness t of the sheet bundle S sent out is detected by the sheet thickness detecting means 40, and the sheet width of the sheet bundle S is detected by the sheet width detecting means 1.
Detect at 9. Then, the shredding cross-sectional area of the sheet bundle S is obtained by the calculating means 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 thickness of the sheet bundle S sent out by the paper feeding means is adjusted by the adjusting means according to the shredded cross-sectional area obtained by the calculating means.
【００１１】請求項２に記載のものでは、給紙手段で用
紙束Ｓを送り出した後にその紙幅を紙幅検知手段１９に
より検知する。According to the second aspect of the present invention, the paper width is detected by the paper width detecting means 19 after the paper bundle S is sent out by the paper feeding means.
【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、この発明の一実施例で
ある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。1 and 2 show a paper feed device for a shredder which is an embodiment of the present invention. Further, FIG. 1 shows the configuration of a paper transport system including a part of the drive system of the paper feeding device, 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 feeding device, a paper conveying system is provided between laterally long side plates indicated by reference numeral a in FIG. 1 and reference numeral b in FIG. 2, and a drive system is provided outside one side plate b (front side in the drawing). ).
【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 front side of the sheet conveying system (the left side in FIG. 1)
Is provided with a paper feed path 10 for guiding a sheet to a shredder (not shown), and the rear side of the paper feed path 10 (right side in FIG. 1)
Is equipped with a loading platform 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 by mounting an upper guide plate 12 and a lower guide plate 13 between the side plates a and b so as to be substantially horizontal between them. The right end portion of the lower guide plate 13 is bent downward in a crank shape, and a mounting step portion 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 is formed by bending both sides of the plate-shaped tray portion 11a downward and rearwardly of the bent portion 11b (see FIG. 1).
A support shaft 14 is provided on the center right end side, and the support shaft 14 is rotatably supported about the support shaft 14 between the side plates a and b. Then, the tip end side (the left end side in FIG. 1) of the tray portion 11a is placed on the mounting step portion 13a to hold the loading table 11 substantially horizontally. The tray section 11a is provided with the paper presence / absence detection means 17 and the paper width detection means 19. Those detection means 1
As 7 and 19, for example, a micro switch or a photo sensor 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、４Ａ・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こと
ができる。As the paper width detecting means 19, for example, as shown in FIG. 3, an example using a plurality of photosensors 19a is shown. In that example, as shown in FIG. 9A, each photo sensor 19a is set to a predetermined paper size (for example, A5 and B5) in the width direction of the stacked paper P set on the basis of one side.
・ A4, B4, and A3) are arranged at intervals. FIG. 11B shows an example in which a plurality of photosensors 19a are similarly arranged at intervals when the stacked sheets are set based on the center. By arranging in such a manner, the paper width detecting means 19 detects the paper width of the bundle of paper in a stepwise manner according to the predetermined paper size. This makes it possible to reliably detect the paper width for each predetermined paper size such as 4A / 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。Further, as the paper width detecting means 19, for example, as shown in FIG. 4, a rod-shaped CCD element is used, and its CC
It is also possible to dispose the D element in the width direction of the stacked sheets P set with one side as a reference, as shown in FIG. FIG. 11B shows an example in which when the stacked paper P is set with the center as a reference, the CCD elements are similarly arranged across the stacked paper P in the width direction. With such an arrangement, the paper width detecting means continuously detects the paper width of the sheet bundle in the width direction regardless of the predetermined paper size. This makes it possible to detect the paper width of a bundle of paper 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。Further, as shown in FIG. 1, in the paper transport system, a push-up arm 15 is provided below the leading end side of the tray portion 11a.
Is provided. The push-up arm 15 is formed by bending a plate material into an L shape and providing a protrusion 15a at the tip. Then, the base end portion is fixed to the arm shaft 16 that rotatably supports between the side plates a and b,
The protrusion 15a is arranged upward on the lower side of 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。Therefore, above the stacking table 11, the front sheet feeding roller 20 is arranged on the front end side thereof, and the rear sheet feeding roller 21 is arranged on the rear end side thereof. The front paper feed roller 20 has a roller shaft 22.
Is hung between the side plates a and b to be rotatably supported. 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 includes a flat plate portion 24a and downward bending plate portions 24b provided on both sides of the flat plate portion 24a.
Formed with. Further, the fixed shaft 29 is provided so as to project outward from the tip end side (the left end side in the drawing) of the bending plate portion 24b. Further, the rear sheet feeding roller 21 is rotatably attached to the rear end side of the bending 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 mounted on the upper side.
【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。Further, the rotating frame 24 is provided at its rear end side with 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, which is applied to the rear sheet feeding roller 21.
And a gear train G 5 for transmission to. And the bending plate portion 2
4b supports the pulley 33 of the gear train G 5 , and the pulley 3
A rotation transmission belt 28 is stretched between the pulley 3 and the pulley 27. Then, as shown in the figure, when the sheets are stacked on the sheet mounting surface 11c of the stacking table 11, the rear sheet feeding roller 21 rides on the stacked sheet 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 arranged 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 turning lever 31 is fixed to the lever shaft 30, and the tip end 31 a of the turning lever 31 is arranged to face the lower side of 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を可撓性の有す
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。Further, the upper conveying roller 34 is arranged in front of the lever shaft 30, and the lower conveying roller 35 is arranged below it. The upper and lower conveying rollers 34, 35 are in contact with each other in the sheet feeding path 10, and rotatably support the roller shafts 36, 37 by spanning them between the side plates a, b. The upper conveyance roller 34 has a roller shaft 36 that is strong and does not bend, while the lower conveyance roller 35 has a roller shaft 37 that is flexible. A pulley 38 is provided on the roller shaft 36, and the pulley 38 and the pulley 26 of the front paper feed roller 20 are provided.
A rotation transmission belt 39 is stretched between them.
【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。Therefore, the paper thickness detecting means 40 supported by the upper guide plate 12 is arranged in front of the front paper feed roller 20.
The paper thickness detecting means 40 is composed of, for example, a filler 41 and a light reflection type micro displacement sensor 42. Fira 41
According to the thickness of the bundle of sheets passing between the conveying rollers 34 and 35, the shaft 41b is rotatably provided. Although not shown, the micro displacement sensor 42 is provided such that the light emitting portion and the light receiving portion face the base end portion 41 a of the filler 41. Then, the displacement amount of the filler 41 is detected based on the reflected light emitted from the light emitting portion of the micro displacement sensor 42, reflected by the base end portion 41a of the filler 41 and entering the light receiving portion, and the thickness of the sheet bundle is detected.
【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-mentioned paper transport system,
The front paper feed roller 20 is rotatably supported between the side plates a and b, and as shown in FIG. 2, it is moved vertically by penetrating both ends of the roller shaft 22 through elongated holes 46 provided in the side plates a and b. Support as much as possible. The bearing 43 fitted in the long hole 46
Is provided on the roller shaft 22, and the bearing 43 is constantly urged downward by an urging spring 44 to abut against the edge of the elongated hole 46 to hold the front paper feed roller 20 at a predetermined height position. On the other hand, the micro detection switch 45 is attached near the front paper feed roller 20 and inside the side plate b. The actuator 45a 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。In addition to the roller driving means E described above, the driving system is provided with a loading table driving means indicated by reference numeral A in FIG. 2 and a rotating lever driving means B provided on the upper side thereof. Roller driving means C on the front side of B and A respectively
・ Provide D.
【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 platform driving means A has 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 rotation lever driving means B has 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 rotation lever 31.
Is provided. The roller driving means C includes a motor 52 and a driving force of the motor 52, which is applied to the roller shaft 36 of the upper conveyance roller 34.
Gear train G 3 for transmission to The roller driving means D includes a motor 53 and a gear train G 4 that transmits the driving force of the motor 53 to the roller shaft 37 of the lower conveyance 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 in the figure, the sheet feeding device described above uses the paper width of the paper bundle detected by the paper width detecting means 19 and the thickness of the paper bundle detected by the paper thickness detecting means 40 to determine the shredded cross-sectional area of the paper bundle. A calculation means for calculating Further, there is provided an adjusting means for adjusting the rotation speed of the rear sheet feeding roller 21 by appropriately controlling the driving of the roller driving means E in accordance with the shredded sectional area of the sheet bundle obtained by the calculating means.
【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。Therefore, the sheet feeding device having the above-described structure is properly mounted on the main body of the shredder for use.
【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。During use, the operating switch is appropriately operated to drive the motor 51 of the rotating lever driving means B to rotate the rotating lever 31. Then, the tip end 31a of the rotating lever 31 is applied to the fixed shaft 29, and the rotating frame 24 is rotated to a certain angular position to open the top of the loading platform 11. Then, the waste sheets are stacked on the stacking table 11. Then, the presence / absence of the stacked paper P on the stacking base 11 is detected by the paper presence / absence detection means 17, and the paper width of the stacked paper P is detected by the paper width detection 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 to rotate the rotating lever 3
1 is rotated in the opposite direction to return the rotating frame 24, and the rear sheet feeding roller 21 is placed on the stacked sheets. Then, a paper feed start switch (not shown) is turned on. Then, based on the detection signal indicating that there is paper in the paper presence / absence detection means 17, although not shown, the control means operates the motor 50 of the loading platform drive means A, and the driving force of the motor 50 is changed to the gear train G 1 Is transmitted to the arm shaft 16 to rotate the push-up arm 15, and the push-up arm 15 rotates the loading table 11 to push up the tip end side thereof. When the leading end side of the stacked 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 stacked paper P
It is detected that the topmost one is at a predetermined height position.
Then, based on the detection signal, the above-mentioned control means stops the operation of the motor 50 of the loading platform driving means A, and holds the loading platform 11 at this predetermined height position as shown in FIG. At this time, the paper thickness detecting means 40 is in a state of not detecting the paper thickness, as shown in FIG.
【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。Then, the motor 52 of the roller driving means C is driven, and the driving force thereof is transmitted by the gear train G 3 to rotate the upper conveying roller 34, and at the same time, the motor 53 of the roller driving means D is driven to drive the same. The force is transmitted by the gear train G 4 to rotate the lower conveyance roller 35. Then, the front paper feed roller 20 is rotated in synchronization with the upper conveyance roller 34 via the rotation transmission belt 39. Further, the motor 32 of the roller driving means E is driven, and the driving force thereof is transmitted via the gear train G 5 and the rotation transmission belt 28 to rotate the rear sheet feeding roller 21. Then, as shown in FIG.
At 1, the stacked sheets P are 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 that time, when the uppermost first sheet s is fed out by the distance d (distance between the roller shaft 25 and the rear end of the stacked sheets P), the rear sheet feeding roller 21 comes into contact with the second sheet and Start feeding the first sheet. Similarly, after feeding the second sheet by the same distance d, the second sheet comes into contact with the third sheet, and as shown in FIG. Eventually, the sheets s are continuously fed while forming the sheet bundle S while being displaced by the distance d, and are conveyed to the shredder of the shredder through the sheet feeding path 10 by the upper and lower conveying rollers 34 and 35. At that 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 established, and normally n sheets are fed, and n × (sheets (1 sheet thickness)
= (The thickness t of the 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 is rotated clockwise from the state shown in FIG. 6A according to the thickness t of the sheet bundle S, as shown in FIG. The micro displacement sensor 42 detects the amount of displacement of the filler 41 at that time 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 means 19 as described above,
The shredding cross-sectional area of the sheet bundle S is obtained by the calculating means. Then, when the shredded cross-sectional area is equal to or larger than the preset predetermined value X, the driving of the roller driving means E is controlled to be decelerated by the above-mentioned adjusting means to slow the rotation speed of the rear sheet feeding roller 21. Then, according to the slow speed, the deviation of the rear end of the sheet s fed by the rear sheet feeding roller 21 increases from d to d 1 as shown in FIG. At that time, (m-1)
<L / d 1 ≦ m, and m <n. That is, the number of sheets fed by the rear sheet feeding roller 21 is reduced by that much, and as a result, the shredded sectional area of the sheet bundle S is reduced.
Then, the sheet bundle S is adjusted so as not to become 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。On the contrary, when the thickness t of the sheet bundle S is thinned and the shredded sectional area is equal to or smaller than the predetermined value X, the driving of the roller driving means E is accelerated and controlled by the adjusting means. Then, the rotation speed of the rear sheet feeding roller 21 is increased. Then
Depending on the high speed, the deviation of the rear end of the sheet s fed by the rear sheet feeding roller 21 is from d to d 2 as shown in FIG.
It becomes short. That is, the number of sheets fed out by the rear sheet feeding roller 21 increases correspondingly, and as a result, the shredded cross-sectional area of the sheet bundle S increases and approaches the predetermined value X. Then, the sheet bundle S
Adjust to increase the thickness of.
【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とよい。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。By the way, in the present invention, for example, FIG.
As described above, it is preferable to arrange the above-described paper width detection means 19 on the downstream side in the paper conveyance direction. The paper width detecting means 19 is attached to, for example, the upper guide plate 12 toward the paper feed path 10. And the front and rear sheet feeding rollers 20 and 21
After the stacked sheets P have been sent out by, the sheet width detection means 19 detects the sheet width of the sheet bundle S when passing through the sheet feeding path 10.
【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 if the paper width changes midway after the paper is sent out, as in the case of sending out stacked sheets of paper of different width sizes, the changed paper width is detected by the paper width detecting means 19 and Paper width and paper thickness detecting means 40
The shred cross-sectional area of the sheet bundle S is obtained from the thickness detected in step S1, and the rotational speed of the rear sheet feeding roller 21 is changed according to the changed shred cross-sectional area to adjust the thickness of the sheet bundle.
【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。Further, in the above embodiment, the thickness of the sheet bundle is adjusted by changing the rotation speed of the rear sheet feeding roller 21 in accordance with the shredded cross-sectional area of the sheet bundle to be sent out. However, according to the present invention, for example, the thickness of the sheet bundle can be adjusted according to the shredded cross-sectional area of the sheet bundle by the configuration shown in the following embodiments.
【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. 12 is used as a forward transfer roller, while the lower transport roller 35 is used.
Is configured as a reversible roller capable of reversing forward and backward.
When the shredded 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.
On the other hand, when both of them are rotated in the normal direction, when the value is equal to or more than the predetermined value X, the reversible roller 35 is rotated in the reverse direction to return the sheet bundle onto the stacking table 11, thereby adjusting the thickness of the sheet bundle.
【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
紙手段による用紙搬送量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。Therefore, according to the present invention, at the time of sheet feeding, not only the thickness of the sheet bundle, but also the sheet feeding means according to the shredded cross-sectional area of the sheet bundle by the cutter, which is obtained from the sheet thickness and the sheet width. The configuration is such that the sheet conveyance amount is adjusted, whereby it is possible to reliably prevent the sheet bundle having a sheet amount exceeding the shredding capability from being fed and the shredding portion to be locked.
【００４３】請求項２に記載のものによれば、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こと
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、それに適応して調整手段により
用紙搬送量を適宜に変更することができる。According to the second aspect of the present invention, the paper width of the bundle of papers is detected by the paper width detecting means after the papers are sent out. Therefore, for example, when the stacked papers with different widths are mixed, the paper is sent out. Even if the paper width changes in the middle later, the paper feeding amount can be appropriately changed by the adjusting means in accordance with the change.
【図１】この発明の一実施例である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。FIG. 1 is a schematic configuration diagram showing a paper transport system including a part of a drive system of a paper feeder of a shredder which is an embodiment of the present invention.
【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 a layout configuration diagram in which paper width detecting means are installed at intervals according to a predetermined paper size set on the basis of one side and FIG. 3B on the basis of center.
【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。FIG. 4A is a layout configuration diagram in which the sheet width detecting means is installed across the sheet width set in the width direction of the stacked sheets set with one side reference and FIG. 4B center reference.
【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 sheet ready state of the sheet feeding device.
【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 view showing a paper thickness non-detection state by the paper thickness detection means, and FIG. 6B is a state explanatory view 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 of a state immediately after the start of sheet feeding in this sheet feeding device.
【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 sheet feeding roller contacts the 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 a state explanatory view showing a state in which sheets are shifted to form a bundle of sheets and the sheets are sent out.
【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 of a state when the rotational speed of the rear sheet feeding roller is slowed to increase the deviation of the 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 of a state when the rotational speed of the rear sheet feeding roller is increased to reduce the deviation of the sheet.
【図１２】この発明の他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。FIG. 12 is a partial schematic configuration diagram of a front side of a paper feeding device according to another embodiment 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 Detection Unit 20/21 Front / Back Feeding Roller (Paper Feeding Unit) 34/35 Vertical Conveying Roller (Paper Feeding Unit) 40 Paper Thickness Detecting Device P Stacked Paper S Paper Bundle t Paper Bundle Thickness
Claims (2)
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
備えてなる、シュレッダの給紙装置。1. A paper feed device for a shredder that feeds a stack of a plurality of stacked sheets to a shredder and feeds the sheet bundle, and the thickness of the sheet bundle sent by the sheet feeding means. From the sheet width detecting means for detecting the sheet width, the sheet width detecting means for detecting the sheet width of the sheet bundle, the sheet width of the sheet bundle detected by the sheet width detecting means, and the thickness of the sheet bundle detected by the sheet thickness detecting means. A shredder feeding device comprising: a calculating means for obtaining a shredded cross-sectional area of a sheet bundle; and an adjusting means for adjusting the thickness of the sheet bundle sent out by the paper feeding means according to the shredded sectional area obtained by the calculating means. Paper equipment.
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、請求項１に記載のシュレッダの給紙装置。2. The paper feed device for the shredder according to claim 1, wherein the paper width detection means is arranged at a position where the paper width of the sheet bundle fed by the paper feed means can be detected.
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 true JPH08131862A (en) | 1996-05-28 |
| JP3343174B2 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) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2440651A (en) * | 2006-07-28 | 2008-02-06 | Martin Yale Internat Gmbh | Shredding device having thickness measuring arrangement |
| GB2442942A (en) * | 2006-10-20 | 2008-04-23 | Primax Electronics Ltd | Shredder having a thickness triggering mechanism |
| GB2465649A (en) * | 2008-12-01 | 2010-06-02 | Primax Electronics Ltd | Width and thickness controlling shredder |
| GB2473508A (en) * | 2009-09-11 | 2011-03-16 | Primax Electronics Ltd | Variable frequency shredder control system |
| US9669410B2 (en) | 2007-08-02 | 2017-06-06 | ACCO Brands Corporation | Shredding machine |
-
1994
- 1994-11-15 JP JP30545594A patent/JP3343174B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2440651A (en) * | 2006-07-28 | 2008-02-06 | Martin Yale Internat Gmbh | Shredding device having thickness measuring arrangement |
| GB2442942A (en) * | 2006-10-20 | 2008-04-23 | Primax Electronics Ltd | Shredder having a thickness triggering mechanism |
| GB2442942B (en) * | 2006-10-20 | 2008-12-17 | Primax Electronics Ltd | Shredder |
| US9669410B2 (en) | 2007-08-02 | 2017-06-06 | ACCO Brands Corporation | Shredding machine |
| US10576476B2 (en) | 2007-08-02 | 2020-03-03 | ACCO Brands Corporation | Shredding machine |
| GB2465649A (en) * | 2008-12-01 | 2010-06-02 | Primax Electronics Ltd | Width and thickness controlling shredder |
| GB2465649B (en) * | 2008-12-01 | 2010-12-08 | Primax Electronics Ltd | Width and thickness detecting mechanism of shredder |
| GB2473508A (en) * | 2009-09-11 | 2011-03-16 | Primax Electronics Ltd | Variable frequency shredder control system |
| GB2473508B (en) * | 2009-09-11 | 2011-11-09 | Primax Electronics Ltd | Variable frequency controlling system and method of shredder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3343174B2 (en) | 2002-11-11 |
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