JP3313535B2 - Shredder paper feeder - Google Patents
Shredder paper feederInfo
- Publication number
- JP3313535B2 JP3313535B2 JP05662095A JP5662095A JP3313535B2 JP 3313535 B2 JP3313535 B2 JP 3313535B2 JP 05662095 A JP05662095 A JP 05662095A JP 5662095 A JP5662095 A JP 5662095A JP 3313535 B2 JP3313535 B2 JP 3313535B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating body
- paper
- stacked
- sheet
- projection
- 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 - Lifetime
Links
Landscapes
- Crushing And Pulverization Processes (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【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、細断用
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 feeding device that is used by being attached to the shredder and supplies shredded 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、
積載用紙を、一枚ずつ送り出すよりは効率がよいので複
数枚ずつ重ねて用紙束にして細断部へと送り出してい
る。2. Description of the Related Art Conventionally, in this type of paper feeder, generally,
It is more efficient than sending out the stacked sheets one by one, so a plurality of stacked sheets are stacked and sent to the shredding section.
【０００３】そのため、従来のものの中には、たとえば
図１１に示すように、載置台１の前端側に前給紙ローラ
２を設けるとともに、後端側に後給紙ローラ３を設け、
それら前後給紙ローラ２・３の回転により積載用紙Ｐの
下から、図１２に示すように、用紙を少しずつずらして
重ねた用紙束Ｓにして細断部へ送り出す構成としたもの
がある。[0003] For this reason, among the conventional ones, as shown in FIG. 11, for example, a front paper feed roller 2 is provided at a front end side of a mounting table 1, and a rear paper feed roller 3 is provided at a rear end side.
As shown in FIG. 12, there is a configuration in which, as shown in FIG. 12, the sheets are shifted little by little and stacked as a stacked sheet bundle S and sent to the shredding section by rotation of the front and rear sheet feeding rollers 2 and 3.
【０００４】しかし、その種のものでは、載置台１の前
端側と後端側にそれぞれ給紙ローラ２・３を必要とし、
しかも、それらローラ２・３に回転を伝達する機構を必
要とするため、それだけ部品が多く構造が複雑であっ
た。However, such a type requires paper feed rollers 2 and 3 at the front end and the rear end of the mounting table 1, respectively.
Moreover, since a mechanism for transmitting rotation to the rollers 2 and 3 is required, the number of components is large and the structure is complicated.
【０００５】そこで、出願人は、そのように多くの部品
を用いた複雑な構造にしないで、積載用紙から用紙を重
送することのできる給紙装置を、すでに提案している。Therefore, the applicant has already proposed a paper feeder capable of multi-feeding sheets from stacked sheets without using such a complicated structure using many parts.
【０００６】つまり、図１３に概略的に示すように、載
置台１の前端上方に、支持軸４を幅方向に向けて給紙用
の回転体５を配置する。回転体５は、支持軸４上に、外
周に突部６ａを有する複数の歯車状部材６を取り付けて
なる。そして、この回転体５を、図示しない対向側板間
に支持軸４を掛け渡して回転自在に支持する簡単な構成
としていた。[0008] That is, as schematically shown in FIG. 13, a rotating body 5 for feeding paper is arranged above the front end of the mounting table 1 with the support shaft 4 directed in the width direction. The rotating body 5 is formed by mounting a plurality of gear-shaped members 6 each having a protruding portion 6 a on the outer periphery on the support shaft 4. The rotating body 5 has a simple configuration in which the supporting shaft 4 is hung between opposed side plates (not shown) to be rotatably supported.
【０００７】しかして、給紙時に、回転体５を回転する
とき、図１４に示すように、積載用紙Ｐに突部６ａが押
し当たると、それが喰い込んでその喰込み位置の前側で
積載用紙Ｐに膨らみｆを生じ、その用紙を突部６ａで掻
き送る。そして、その膨らんだ用紙の上側のものほど漸
次前方へ押し出されて移動し、それら用紙を用紙束にし
て細断部へ送り出していた。When the rotating body 5 is rotated during paper feeding, as shown in FIG. 14, when the protruding portion 6a is pressed against the stacking paper P, it is bitten and the stacking paper P is stacked in front of the biting position. A bulge f occurs in the sheet P, and the sheet is scraped by the protrusion 6a. Then, the upper side of the swollen sheet is gradually pushed forward and moved, and the sheets are sent to the shredding section as a sheet bundle.
【０００８】[0008]
【発明が解決しようとする課題】ところが、その従来の
給紙装置では、給紙時、個々の突部６ａが積載用紙Ｐに
押し当たったときの食込み量に限りがあるから、それら
突部６ａが積載用紙Ｐの上でそれと接触する距離、つま
り接触時間が極めて短く、そのため、突部６ａで用紙束
を掻き送って前方へ押し出す押出し量が少なく、その結
果、回転体５により積載用紙Ｐから用紙束を送り出す効
率が悪かった。However, in the conventional sheet feeding device, the amount of bite when each of the projections 6a presses against the stacked paper P during paper feeding is limited. Is extremely short, that is, the contact time is short on the stacking paper P, so that the protrusion 6a pushes the bundle of papers out and pushes it forward, and as a result, the rotation body 5 The efficiency of sending a bundle of sheets was poor.
【０００９】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、回転体により積載用紙から用紙束を
効率よく送り出すことにある。SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a paper feeder for a shredder in which a rotating body efficiently feeds a bundle of sheets from stacked sheets.
【００１０】[0010]
【課題を解決するための手段】そのため、請求項１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、
積載用紙Ｐに回転体２０を接触し、その回転体２０の回
転により積載用紙Ｐから用紙束を細断部へと送り出すシ
ュレッダの給紙装置において、前記回転体２０に、前記
積載用紙Ｐに押し当て喰い込ませて用紙束を掻き送る突
起２５のような突部を設けるとともに、前記積載用紙Ｐ
に対する押当力が一定以上となったときその突部が前記
回転体２０の中心に向けて退避可能に該突部を突出方向
イに付勢してなる、ことを特徴とする。For this purpose, the present invention has the following features.
In a paper feeder of a shredder for bringing the rotating body 20 into contact with the stacked paper P and sending out a bundle of sheets from the stacked paper P to the shredding section by the rotation of the rotating body 20, the rotating body 20 is pressed against the stacked paper P. A projection, such as a projection 25, which pushes the bundle of sheets in contact with the stack, is provided.
When the pressing force with respect to is greater than or equal to a predetermined value, the protrusion urges the protrusion in the protruding direction a so as to be able to retreat toward the center of the rotating body 20.
【００１１】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、積載用紙Ｐに回転体２０を接
触し、その回転体２０の回転により積載用紙Ｐから用紙
束を細断部へと送り出すシュレッダの給紙装置におい
て、前記回転体２０に、前記積載用紙Ｐに押し当て喰い
込ませて用紙束を掻き送る弾性突部３０ａを設けてな
る、ことを特徴とする。According to a second aspect of the present invention, as shown in the following embodiment, for example, a rotating body 20 is brought into contact with a stacked sheet P, and the sheet bundle is shredded from the stacked sheet P by the rotation of the rotating body 20. In the paper feeder of the shredder for feeding the sheet to the stacking unit, the rotating body 20 is provided with an elastic protrusion 30a that pushes and bites the stacked sheets P to scrape the sheet bundle.
【００１２】[0012]
【作用】そして、請求項１に記載のものでは、給紙時、
回転する回転体２０の突部を積載用紙Ｐに押し当て喰い
込ませて用紙束を細断部へと掻き送る。そのとき、積載
用紙Ｐに対する押当力が一定以上となると、その突部が
回転体２０の中心に向けて退避し、その回転体２０の中
心と突部の用紙接触位置との間の距離を縮める。According to the first aspect, at the time of paper feeding,
The protruding part of the rotating rotator 20 is pressed against and bites the stacked sheets P to scrape the sheet bundle to the shredding section. At this time, when the pressing force against the stacked paper P becomes equal to or more than a certain value, the protrusion retreats toward the center of the rotating body 20 and the distance between the center of the rotating body 20 and the paper contact position of the protrusion is reduced. Shrink.
【００１３】請求項２に記載のものでは、給紙時、回転
する回転体２０の弾性突部３０ａを積載用紙Ｐに押し当
て喰い込ませて用紙束を細断部へと掻き送る。そのと
き、弾性突部３０ａが変形して回転体２０の中心と弾性
突部３０ａの用紙接触位置との間の距離を縮める。According to the second aspect of the present invention, at the time of paper feeding, the elastic projections 30a of the rotating rotating body 20 are pressed against the loaded paper P to bite the paper bundle to the shredding section. At this time, the elastic projection 30a is deformed to reduce the distance between the center of the rotating body 20 and the position where the elastic projection 30a contacts the sheet.
【００１４】[0014]
【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.
【００１５】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。図１はこの給紙装置
の用紙搬送系の構成であり、図２は駆動系の構成であ
る。FIGS. 1 and 2 show a paper feeder of a shredder according to an embodiment of the present invention. FIG. 1 shows the configuration of a paper transport system of this paper feeder, and FIG. 2 shows the configuration of a drive system.
【００１６】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対向側板
間に設け、駆動系を、一方の側板ｂの外側（図２中手前
側）に設ける。In this paper feeder, a paper transport system is provided between horizontally long opposing side plates indicated by reference numerals a and b in FIG. 1 and a drive system is provided outside one side plate b (see FIG. 2). (Front side).
【００１７】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）
に載置台１１を備える。The front side of the paper transport system (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.
Is provided with a mounting table 11.
【００１８】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 the side plates a and b with an upper guide plate 12 and a lower guide plate 13 attached therebetween. The right end of the lower guide plate 13 is bent downward in a crank shape, and a mounting step 13a is provided there.
【００１９】載置台１１は、板状のトレイ部１１ａと、
そのトレイ部１１ａの両側を下向きに折り曲げた裾部１
１ｂを有する。そして、その裾部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の前端側（図１中左端側）を載置段部１３ａ上
に乗せて、載置台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を取り
付けてなる。その検知手段１７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 mounting table 11 includes a plate-like tray portion 11a,
A hem portion 1 in which both sides of the tray portion 11a are bent downward.
1b. Then, the rear end side of the hem 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 front end (left end in FIG. 1) of the tray 11a is placed on the mounting step 13a, and the mounting table 11 is held substantially horizontally. Thus, the paper presence detecting means 17 is attached to the tray 11a. As the detecting means 17, for example, a micro switch, a photo sensor, or the like is used.
【００２０】また、トレイ部１１ａの前端側の下方に、
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, below the front end side of the tray portion 11a,
A push-up arm 15 is provided. The lifting arm 15 moves the plate material to L
And a projection 15a is provided at the tip. And
The base end is fixed to an arm shaft 16 rotatably supported between the side plates a and b, and the projection 15a is arranged upward below the tray 11a.
【００２１】しかして、載置台１１の上方には、その前
端寄りに支持軸２１を幅方向に向けて給紙用の回転体２
０を配置する。回転体２０は、図３および図４に示すよ
うに、支軸２１上に筒状ボス部材２２を取り付けてな
る。筒状ボス部材２２は、支持軸２１の貫通する中心穴
２２ａから放射状に溝部２２ｂを形成し、その溝部２２
ｂの底にそれぞれ長穴２２ｃを設けてなる。そして、こ
れら溝部２２ｂ内にそれぞれ突起２５を配置してなる。Thus, above the mounting table 11, the support shaft 21 is directed in the width direction near the front end thereof, and the paper feed rotating body 2
0 is placed. The rotating body 20 has a cylindrical boss member 22 mounted on a support shaft 21 as shown in FIGS. The cylindrical boss member 22 forms a groove 22b radially from a center hole 22a through which the support shaft 21 penetrates.
An elongated hole 22c is provided at the bottom of b. Then, the projections 25 are arranged in the respective groove portions 22b.
【００２２】突起２５は、直方形部材の先端部を丸味を
付けてつくり、フラットな基端面からばね掛けピン２５
ａを立て、側面にストッパピン２５ｂ・２５ｃを立てて
なる。そして、この突起２５を、ばね掛けピン２５ａを
スプリング２３に係合させて溝部２２ｂ内に配置する。
しかして、一側ストッパピン２５ｂを筒状ボス部材２２
の長穴２２ｃに係合し、他側ストッパピン２５ｃを、筒
状ボス部材２２に被せる環状の蓋２４の長穴２４ａに係
合する。そうして、図５に示すように、スプリング２３
により突起２５を突出方向イに付勢し、ストッパピン２
５ｂ・２５ｃを長穴２２ｃ・２４ａの穴縁に突き当てて
常に突出状態で保持する。そして、該回転体２０を、支
持軸２１を側板ａ・ｂ間に掛け渡して回転自在に支持し
てなる。The projection 25 is formed by rounding the distal end of a rectangular member, and the spring hook pin 25 is formed from a flat base end surface.
a, and the stopper pins 25b and 25c are erected on the side surfaces. Then, the projection 25 is disposed in the groove 22b by engaging the spring hook pin 25a with the spring 23.
Thus, the one-side stopper pin 25b is connected to the cylindrical boss member 22.
, And the other-side stopper pin 25c is engaged with the elongated hole 24a of the annular lid 24 that covers the cylindrical boss member 22. Then, as shown in FIG.
Urges the protrusion 25 in the protruding direction a by the stopper pin 2
5b and 25c are abutted against the hole edges of the long holes 22c and 24a, and are always kept in a protruding state. The rotating body 20 is rotatably supported by supporting the support shaft 21 between the side plates a and b.
【００２３】さらに、回転体２０の前方に、図１に示す
ように、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・３
５は、給紙路１０内で接触し、各々のローラ軸３６・３
７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を撓まない剛
性の強いものとする一方、下搬送ローラ３５は、ロ−ラ
軸３７を弾性を有するものとする。Further, as shown in FIG. 1, an upper transport roller 34 is disposed in front of the rotating body 20, and a lower transport roller 35 is disposed below the upper transport roller 34. These upper and lower transport rollers 34.3
5 are in contact with each other in the paper feed path 10 and each of the roller shafts 36.3
7 is supported between the side plates a and b so as to be rotatable. The upper transport roller 34 has a high rigidity that does not bend the roller shaft 36, while the lower transport roller 35 has an elasticity of the roller shaft 37.
【００２４】ところで、上述した用紙搬送系において、
回転体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、側板ａ・ｂに設ける長穴４６
に支持軸２１の両端を軸受４３を介して貫通して上下に
移動可能に支持する。そして、軸受４３を付勢ばね４４
で常時下向きに付勢して長穴４６の穴縁に当ててなる。
一方、回転体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を常時軸受４３に押
し当ててなる。By the way, in the above-described paper transport system,
The rotating body 20 rotatably supports between the side plates a and b, and as shown in FIG.
In this case, both ends of the support shaft 21 penetrate through a bearing 43 and are supported so as to be movable up and down. Then, the bearing 43 is connected to the biasing spring 44.
, And is always urged downward to hit the edge of the elongated hole 46.
On the other hand, a micro detection switch 45 is attached near the rotating body 20 and inside the side plate b. The actuator 45 a of the micro detection switch 45 is constantly pressed against the bearing 43.
【００２５】さて、駆動系には、図２において、符号Ａ
で示す載置台駆動手段と、その上側に設ける回転体駆動
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。Now, the drive system has a reference A in FIG.
And a rotating body driving means B provided above the mounting table driving means, and roller driving means C and D are provided in front of the driving means B and A, respectively.
【００２６】そして、載置台駆動手段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。回転体駆動手
段Ｂには、モータ５１と、歯車列Ｇ2を備える。さら
に、モータ５１の駆動力を回転体２０の支持軸２１に伝
達すべく、歯車列Ｇ2の一歯車と同軸上に設けるプーリ
２８と、支持軸２１上に設けるプーリ２６間に伝達ベル
ト２７を掛け渡してなる。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 mounting 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 rotary body drive means B includes a motor 51, a gear train G 2. Furthermore, in order to transmit the driving force of the motor 51 to the support shaft 21 of the rotating body 20, as one gear and pulley 28 provided coaxially of the gear train G 2, the transfer belt 27 between the pulleys 26 provided on the support shaft 21 I will hang it over. 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 the roller shaft 36. 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.
【００２７】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.
【００２８】さて、その使用時は、載置台１１上に細断
用紙を積載する。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
が有ることを確認し、図示省略するが、駆動制御手段に
より載置台駆動手段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で載置台
１１を回動してその前端側を押し上げる。そして、積載
用紙Ｐの前端側が回転体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４
５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、駆動制御手段で載置台駆動手段Ａのモータ５０の作
動を停止し、図６に示す所定の給紙位置で載置台１１を
保持する。At the time of use, shredded paper is stacked on the mounting table 11. Then, a feed start switch (not shown) is turned on. Thus, to verify that the paper is present in the paper presence detecting means 17, although not shown, activates the table drive means motor 50 of the A mounting by the drive control unit, the driving force of the motor 50 in the gear train G 1 The signal is transmitted to the arm shaft 16 to rotate the push-up arm 15, and the mounting table 11 is rotated by the push-up arm 15 to push up the front end side. Then, when the front end side of the stacked paper P hits the rotating body 20, the actuator 45a moves slightly upward and the micro detection switch 4
5 is turned on to detect that the highest one of the stacked sheets P is at the predetermined height position. Then, based on the detection signal, the operation of the motor 50 of the mounting table driving means A is stopped by the drive control means, and the mounting table 11 is held at the predetermined sheet feeding position shown in FIG.
【００２９】そして、回転体駆動手段Ｂのモータ５１を
駆動し、その駆動力を歯車列Ｇ2および伝達ベルト２７
を介して回転体２０に伝達し、該回転体２０を回転す
る。また、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。Then, the motor 51 of the rotating body driving means B is driven, and the driving force is transmitted to the gear train G 2 and the transmission belt 27.
To the rotating body 20 to rotate the rotating body 20. Further, by driving the motor 52 of the roller drive means C, the upper conveying roller 34 and the driving force is transmitted by the gear train G 3
With rotating, drives the motor 53 of the roller drive means D, and rotates the lower conveying roller 35 to transmit the driving force by the gear train G 4.
【００３０】そして、回転体２０を回転するとき、突起
２５が積載用紙Ｐに押し当たり、図７に示すように、用
紙接触位置からΔＣほど積載用紙Ｐに喰い込む。する
と、その突起２５の喰込み位置の前側で積載用紙Ｐに膨
らみｆを生ずる。そのとき、上側の用紙ほど大きく盛り
上がるが、その用紙を突起２５で掻き送る。そして、図
８に示すように、盛り上がった用紙の上側のものほど漸
次前方へ押し出されて移動し、積載用紙Ｐから複数枚重
ねた用紙束にして送り出す。しかして、回転体２０の回
転により複数の突起２５が繰り返し積載用紙Ｐに押し当
たって積載用紙Ｐから用紙束を送り出し、その用紙束を
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。When the rotating body 20 is rotated, the projection 25 hits the stacked paper P and bites the stacked paper P by ΔC from the paper contact position as shown in FIG. Then, the swelling f occurs in the stacking paper P in front of the biting position of the projection 25. At this time, the upper sheet rises greatly, but the sheet is scraped by the protrusion 25. Then, as shown in FIG. 8, the upper side of the raised sheet is gradually pushed forward and moved forward, and is sent out from the stacked sheets P as a plurality of stacked sheet bundles. The plurality of protrusions 25 are repeatedly pressed against the stacked sheets P by the rotation of the rotating body 20 to send out the sheet bundle from the stacked sheet P, and the sheet bundle is passed through the sheet feeding path 10 by the upper and lower transport rollers 34 and 35 to narrow the shredder. Convey to the cut.
【００３１】ところで、この突起２５の押当て時に、積
載用紙Ｐに対する押当力が一定以上となったとき、図７
に示すように、スプリング２３に抗して該突起２５が回
転体２０の径方向中心に向けて退避する。すると、その
回転体２０の中心と突起２５の先端間距離が縮まり、図
中鎖線で示すように、該退避突起２５が接触始め位置ｍ
と接触終り位置ｎとの間の距離Ｌ1の長さにわたって比
較的長い時間積載用紙Ｐに押し当たる。By the way, when the pressing force against the stacked paper P becomes greater than a certain value at the time of pressing the projection 25, FIG.
As shown in (2), the projection 25 retreats toward the radial center of the rotating body 20 against the spring 23. Then, the distance between the center of the rotating body 20 and the tip of the projection 25 is reduced, and as shown by the dashed line in the figure, the retracting projection 25 comes into contact with the start position m.
Pressed against a relatively long time the stacked paper sheets P over the length of the distance L 1 between the contact end position n and.
【００３２】しかして次に、上述の第１実施例におい
て、この積載用紙Ｐに対する突起２５の該接触距離Ｌ1
を、従来と比較の上で、以下の数式を用いて求める。Then, in the above-described first embodiment, the contact distance L 1 of the projection 25 with respect to the loaded paper P is described.
Is calculated using the following formula, in comparison with the conventional method.
【００３３】まず、従来の場合を、すでに図１４で示し
た前記回転体５を例にとって説明する。ここで、回転体
５の突部６ａと積載用紙Ｐとの接触距離を図１４中符号
Ｌとし、回転体５の回転中心と外径間距離をＲとし、突
部６ａと積載用紙Ｐとの押当角度の１／２をθとし、用
紙たわみ量をΔＣとする。また、図９に各位置とそれを
結ぶ線分のみを示す幾何学的図形を拡大して示すとお
り、回転体５の中心をＯ、突部６ａの接触始め位置を
ｍ、接触終り位置をｎ、最大食込み位置をＱ、半径線Ｏ
Ｑと線分ｍｎの交点をｄとする。First, the conventional case will be described with the rotator 5 already shown in FIG. 14 as an example. Here, the contact distance between the protrusion 6a of the rotating body 5 and the stacked paper P is denoted by L in FIG. 14, the distance between the center of rotation of the rotating body 5 and the outer diameter is R, and the distance between the protrusion 6a and the stacked paper P is The half of the pressing angle is θ, and the amount of sheet deflection is ΔC. Further, as shown in FIG. 9, the center of the rotating body 5 is O, the contact start position of the protrusion 6 a is m, and the contact end position is n, as shown in FIG. 9 by enlarging a geometrical figure showing only each position and a line connecting the positions. , The maximum bite position is Q, radius line O
The intersection of Q and the line segment mn is d.
【００３４】そうすると、線分ｍｎがＬであるから、線
分ｍｄはＬ／２となる。そして、はじめに三角形ｄｎＯ
に着目すると、 ｓｉｎθ＝（Ｌ／２）／Ｒ＝Ｌ／２Ｒ ………(1) となる。次に、 ｃｏｓθ＝（Ｒ−ΔＣ）／Ｒ ………(2) となる。ところで、 ｓｉｎ2θ＋ｃｏｓ2θ＝１ ………(3) であるから、(3)式に(1)・(2)式を代入すると、 （Ｌ／２Ｒ）2＋〔（Ｒ−ΔＣ）〕／Ｒ2＝１ となる。これを変形すると、 Ｌ2＝８ΔＣＲ−４ΔＣ2 ………(4) となる。よって、(4)式の右辺の平方根を求めることに
より、従来における接触距離Ｌが得られる。Then, since the line segment mn is L, the line segment md becomes L / 2. And first, the triangle dnO
Focusing on, sin θ = (L / 2) / R = L / 2R (1) Next, cos θ = (R−ΔC) / R (2) By the way, since sin 2 θ + cos 2 θ = 1 (3), when the equations (1) and (2) are substituted into the equation (3), (L / 2R) 2 + [(R−ΔC)] / R 2 = 1. When this is deformed, L 2 = 8ΔCR−4ΔC 2 (4) Therefore, by obtaining the square root of the right side of the equation (4), the conventional contact distance L can be obtained.
【００３５】さて次に、第１実施例における接触距離Ｌ
1を求める。その場合、図９で示す符号のうち対応する
ものは、同一の符号を付して説明する。ただ、突起２５
と積載用紙Ｐとの押当角度の１／２をθ1とし、突起２
５の接触始め位置をｍ1とし、接触終り位置をｎ1とす
る。さらに、突起２５が積載用紙Ｐに押し当たり退避し
たときの突起移動量をＣ1とする。Next, the contact distance L in the first embodiment will be described.
Seek 1. In this case, the corresponding reference numerals among the reference numerals shown in FIG. However, protrusion 25
1/2 of the pressing angle between the sheet and the loading paper P is θ 1 , and the protrusion 2
The contact start position of No. 5 is m 1 and the contact end position is n 1 . Further, the projection amount of movement when the projection 25 is retracted press against the stacked paper sheets P and C 1.
【００３６】そうすると、 ｓｉｎθ1＝Ｌ1／２Ｒ ………(5) となり、また、 ｃｏｓθ1＝〔Ｒ−（ΔＣ＋Ｃ1）〕／Ｒ ………(6) そこで、上記(3)式に、この(5)・(6)式を代入して変形
すると、 Ｌ1 2＝８Ｒ（ΔＣ＋Ｃ1）−４（ΔＣ＋Ｃ1）2……(7) となる。よって、(7)式の右辺の平方根を求めることに
より、第１実施例でのｍ1ｎ1間距離、つまり接触距離Ｌ
1が得られる。Then, sin θ 1 = L 1 / 2R (5), and cos θ 1 = [R− (ΔC + C 1 )] / R (6) Then, in the above equation (3), When the (5) - (6) by substituting the equation is deformed, L 1 2 = 8R (ΔC + C 1) becomes -4 (ΔC + C 1) 2 ...... (7). Therefore, by obtaining the square root of the right side of the equation (7), the distance between m 1 n 1 in the first embodiment, that is, the contact distance L
1 is obtained.
【００３７】ところで、この発明では、上述の第１実施
例に代えて、たとえば以下の図示実施例に示すように構
成することもできる。Incidentally, in the present invention, instead of the above-described first embodiment, for example, a configuration shown in the following illustrated embodiment can be adopted.
【００３８】たとえば図１０に示すように、回転体２０
の支持軸２１上に、外周に突部３０ａを有する複数の歯
車状部材３０を取り付ける。そして、歯車状部材３０を
弾性部材でつくり、個々の突部３０ａを弾性突部として
形成してなる。For example, as shown in FIG.
A plurality of gear-shaped members 30 each having a protruding portion 30a on the outer periphery are mounted on the support shaft 21. The gear-shaped member 30 is made of an elastic member, and the individual projections 30a are formed as elastic projections.
【００３９】しかして、この第２実施例では、給紙時、
回転体２０を回転すると、弾性突部３０ａが積載用紙Ｐ
に押し当たり喰い込むが、それに応じたわんで突出高さ
を小さくする。すると、その突部３０ａ先端と回転体２
０の中心間距離が縮まり、突部３０ａが接触始め位置ｍ
と接触終り位置ｎとの間の距離Ｌ2の長さにわたって比
較的長い時間積載用紙Ｐに押し当たることになる。However, in the second embodiment, when paper is fed,
When the rotating body 20 is rotated, the elastic protrusions 30a
It pushes in and bites, but it sags and reduces the protruding height accordingly. Then, the tip of the projection 30a and the rotating body 2
0, the distance between the centers is reduced, and the protrusion 30a is brought into contact with the start position m.
It will be pressed against the relatively long time the stacked paper sheets P over the length of the distance L 2 between the contact end position n and.
【００４０】そして、第２実施例において、積載用紙Ｐ
に対する弾性突部３０ａの該接触距離Ｌ2を、従来と比
較の上で、以下、第１実施例の場合と同様に数式を用い
て求める。その場合、前記図９で示す符号のうち対応す
るものものは、同一の符号を付して説明する。ただ、弾
性突部３０ａと積載用紙Ｐとの押当角度の１／２をθ2
とし、弾性突部３０ａのたわみ量をＣ2とする。In the second embodiment, the paper P
The contact distance L 2 of the elastic projections 30a for, on the conventional and comparative hereinafter determined using equations as in the first embodiment. In this case, the corresponding parts among the reference numerals shown in FIG. 9 are described with the same reference numerals. However, the half of the pressing angle between the elastic projection 30a and the stacked paper P is θ 2
And then, the bending amount of the elastic projections 30a and C 2.
【００４１】そうすると、 ｓｉｎθ2＝Ｌ2／２Ｒ ………(8) となり、また、 ｃｏｓθ2＝〔Ｒ−（ΔＣ＋Ｃ2）〕／Ｒ ………(9) そこで、上記(3)式に、この(8)・(9)式を代入して変形
すると、 Ｌ2 2＝８Ｒ（ΔＣ＋Ｃ2）−４（ΔＣ＋Ｃ2）2……(10) となる。よって、(10)式の右辺の平方根を求めることに
より、第２実施例においても、接触距離Ｌ2が得られる
ことが判る。Then, sin θ 2 = L 2 / 2R (8), and cos θ 2 = [R− (ΔC + C 2 )] / R (9) Then, in the above equation (3), When the (8), (9) by substituting the equation is deformed, L 2 2 = 8R (ΔC + C 2) becomes -4 (ΔC + C 2) 2 ...... (10). Therefore, (10) by obtaining the square root of the right side of the equation, in the second embodiment, it is understood that contact distance L 2 is obtained.
【００４２】[0042]
【発明の効果】したがって、請求項１に記載のものによ
れば、回転体を回転して突部を積載用紙に押し当てたと
き、その押当力が一定以上になると、該突部が回転体の
中心に向け退避してその中心と突部先端の間の距離が縮
まる構成とするから、突部が積載用紙に接触する距離、
つまり突部が積載用紙に押し当たる時間が長くなり、こ
れにより、個々の突部により用紙を掻き送って前方へ押
し出す押出し量を多くし、その結果、回転体により積載
用紙から用紙束を効率よく送り出すことができる。According to the first aspect of the present invention, when the rotating body is rotated and the protrusion is pressed against the stack of paper, if the pressing force exceeds a certain level, the protrusion rotates. Since the distance between the center and the tip of the protrusion is reduced by retracting toward the center of the body, the distance at which the protrusion contacts the stacked paper,
In other words, the time for which the protrusions press against the stack of paper is lengthened, thereby increasing the amount of extrusion that pushes the paper forward by pushing out the paper by each protrusion, and as a result, the rotating body efficiently converts the paper bundle from the stack of paper. Can be sent out.
【００４３】請求項２に記載のものによれば、回転体を
回転して弾性突部を積載用紙に押し当てたとき、該突部
が弾性変形してその先端と回転体の中心との間の距離が
縮まる構成とするから、同様に、弾性突部の積載用紙に
対する押当時間が長くなり、これにより、個々の弾性突
部により用紙を掻き送って前方へ押し出す押出し量を多
くし、回転体により積載用紙から用紙束を効率よく送り
出すことができる。According to the second aspect of the present invention, when the rotating body is rotated and the elastic projection is pressed against the stacking paper, the projection is elastically deformed and the space between the tip and the center of the rotating body is formed. Similarly, the pressing time of the elastic projections against the stacked paper is prolonged, thereby increasing the amount of extrusion by pushing the paper forward by the individual elastic projections and pushing forward. The bundle of sheets can be efficiently sent out from the stacked sheets by the body.
【図面の簡単な説明】[Brief description of the drawings]
【図１】この発明の第１実施例であるシュレッダの給紙
装置の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 of a paper feeder of a shredder according to a first embodiment of the present invention.
【図２】その駆動系を示す概略構成図である。FIG. 2 is a schematic configuration diagram showing the drive system.
【図３】この給紙装置に備える回転体の斜視図である。FIG. 3 is a perspective view of a rotating body provided in the paper feeding device.
【図４】その回転体の分解斜視図である。FIG. 4 is an exploded perspective view of the rotating body.
【図５】蓋を開けてその回転体の筒状ボス部材の内部構
造を軸方向片側から示す側面図である。FIG. 5 is a side view showing the internal structure of the cylindrical boss member of the rotating body with the lid opened, viewed from one side in the axial direction.
【図６】この給紙装置の給紙レディ状態説明図である。FIG. 6 is an explanatory diagram of a sheet feeding ready state of the sheet feeding apparatus.
【図７】その給紙装置における回転体の突起による積載
用紙の押当て状態を示す状態説明図である。FIG. 7 is a state explanatory view showing a state in which the stacked sheets are pressed by the protrusions of the rotating body in the sheet feeding device.
【図８】その突起で積載用紙の上側の用紙を漸次前方へ
押し出して掻き送る状態を示す状態説明図である。FIG. 8 is a state explanatory view showing a state in which the upper side of the stacked sheets is gradually pushed forward by the protrusions and is scraped.
【図９】図１４における各位置とそれを結ぶ線分のみを
示す幾何学的図形の拡大構成図である。FIG. 9 is an enlarged configuration diagram of a geometric figure showing only each position in FIG. 14 and a line segment connecting the positions.
【図１０】この発明の第２実施例である給紙装置に備え
る回転体であり、その回転体の弾性突部が積載用紙に押
し当たる状態を示す状態説明図である。FIG. 10 is a state explanatory view showing a rotator provided in a sheet feeding device according to a second embodiment of the present invention, showing a state in which an elastic protrusion of the rotator is pressed against a stacked sheet.
【図１１】従来のシュレッダの給紙装置を示す概略構成
図である。FIG. 11 is a schematic configuration diagram showing a paper feeder of a conventional shredder.
【図１２】その給紙装置による用紙束の送り出し状態を
示す状態説明図である。FIG. 12 is an explanatory diagram showing a state in which a sheet bundle is sent out by the sheet feeding device.
【図１３】従来の別のシュレッダの給紙装置を示す概略
構成図である。FIG. 13 is a schematic configuration diagram showing a sheet feeder of another conventional shredder.
【図１４】この給紙装置における回転体の突部による積
載用紙の押当て状態を示す状態説明図である。FIG. 14 is a state explanatory view showing a state in which the stacked sheets are pressed by the protrusions of the rotating body in the sheet feeding device.
２０ 回転体 ２５ 突起（突部） ３０ａ 弾性突部 イ 突出方向 Ｐ 積載用紙 Reference Signs List 20 Rotating body 25 Projection (projection) 30a Elastic projection 1 Projection direction P Loading paper
───────────────────────────────────────────────────── 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 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. 7 , DB name) B02C 18/00-18/44
Claims (2)
の回転により積載用紙から用紙束を細断部へと送り出す
シュレッダの給紙装置において、前記回転体に、前記積
載用紙に押し当て喰い込ませて用紙束を掻き送る突部を
設けるとともに、前記積載用紙に対する押当力が一定以
上となったときその突部が前記回転体の中心に向けて退
避可能に該突部を突出方向に付勢してなる、シュレッダ
の給紙装置。In a paper feeder of a shredder for bringing a rotating body into contact with a stacked sheet and feeding a bundle of sheets from the stacked sheet to a shredding section by rotating the rotating body, the rotating body is pressed against the stacked sheet. A projection is provided for feeding the stack of sheets by biting, and when the pressing force against the stacked sheets becomes equal to or greater than a predetermined value, the projection projects in the projecting direction so that the projection can be retracted toward the center of the rotating body. The paper feeder of the shredder that is urged.
の回転により積載用紙から用紙束を細断部へと送り出す
シュレッダの給紙装置において、前記回転体に、前記積
載用紙に押し当て喰い込ませて用紙束を掻き送る弾性突
部を設けてなる、シュレッダの給紙装置。2. A paper feeder for a shredder in which a rotating body is brought into contact with a stacked sheet and a bundle of sheets is fed from the stacked sheet to a shredding section by rotation of the rotating body, wherein the rotating body is pressed against the stacked sheet. A paper feeder for a shredder, which is provided with an elastic protrusion that bites the sheet bundle and scrapes it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05662095A JP3313535B2 (en) | 1995-02-21 | 1995-02-21 | Shredder paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05662095A JP3313535B2 (en) | 1995-02-21 | 1995-02-21 | Shredder paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08224492A JPH08224492A (en) | 1996-09-03 |
| JP3313535B2 true JP3313535B2 (en) | 2002-08-12 |
Family
ID=13032334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05662095A Expired - Lifetime JP3313535B2 (en) | 1995-02-21 | 1995-02-21 | Shredder paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3313535B2 (en) |
-
1995
- 1995-02-21 JP JP05662095A patent/JP3313535B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08224492A (en) | 1996-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4997179A (en) | Automatic sheet feeding device | |
| JP3130032U (en) | Drive roller assembly for paper feeder | |
| JPH028124A (en) | Original feeder | |
| US7275741B2 (en) | Methods and apparatus for transporting sheet media | |
| US6457707B1 (en) | Automatic document feeder | |
| JPH082722A (en) | Cut sheet feed mechanism and device using same | |
| US6349931B1 (en) | Automatic paper feeding system | |
| US10106347B2 (en) | Feeding mechanism | |
| JPH0745476Y2 (en) | Paper feed mechanism | |
| JP3313535B2 (en) | Shredder paper feeder | |
| US7694954B2 (en) | Sheet pick-up device | |
| US6719284B2 (en) | Document feeding apparatus | |
| US5265857A (en) | Automatic document feeder with mechanical clutch mechanism | |
| JP3129967U (en) | Paper capture assembly | |
| JP3677356B2 (en) | Paper feeder | |
| JP2001080753A (en) | Paper feeding device | |
| US7552926B2 (en) | Sheet transportation device and printer comprising a device of this kind | |
| US20020074710A1 (en) | Paper pick-up mechanism of an automatic document feeder | |
| US7232124B2 (en) | Sheet separator | |
| JPS61277520A (en) | Paper feeding device | |
| AU743178B2 (en) | Paper-feeding apparatus | |
| JPH08187443A (en) | Paper feed device of shredder | |
| JPS5940356Y2 (en) | Paper feeding device | |
| JP2765539B2 (en) | Paper cassette | |
| JPH0275533A (en) | Paper feeding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090531 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100531 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100531 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110531 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120531 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120531 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130531 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140531 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140531 Year of fee payment: 12 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140531 Year of fee payment: 12 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |