JPS62146877A - Safety mechanism for stacker - Google Patents

Safety mechanism for stacker

Info

Publication number
JPS62146877A
JPS62146877A JP60286351A JP28635185A JPS62146877A JP S62146877 A JPS62146877 A JP S62146877A JP 60286351 A JP60286351 A JP 60286351A JP 28635185 A JP28635185 A JP 28635185A JP S62146877 A JPS62146877 A JP S62146877A
Authority
JP
Japan
Prior art keywords
stacker
operator
optical sensor
stacker table
hands
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.)
Pending
Application number
JP60286351A
Other languages
Japanese (ja)
Inventor
Koichi Ubue
生柄　耕一
Masanori Koike
正憲 小池
Akihiko Uematsu
植松　顕彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP60286351A priority Critical patent/JPS62146877A/en
Publication of JPS62146877A publication Critical patent/JPS62146877A/en
Pending legal-status Critical Current

Links

Landscapes

  • Paper Feeding For Electrophotography (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

PURPOSE:To improve the safety in the work for a printer by installing a detection part consisting of an optical sensor and a reflecting mirror and certainly detecting operator's hands inserted between a paper sending-out part and a stacker table in noncontact. CONSTITUTION:When operator's hands are inserted between a paper sending-out part 1 and a stacker table 6 from a certain reason, the light beam 15 transmitted into a light receiving element 12 by a reflecting mirror 13 from the luminous element 11 of an optical sensor 20 arranged at the lower edge part of the paper sending-out part 1 is cut off by the operator's hands. By the cut-off of the light beam 15, the optical sensor 20 operates to stop the rise of the stacker table 6, which is speedily shifted downward, and the trouble that the operator's hands are pinched by the stacker table 6 is certainly avoided.

Description

【発明の詳細な説明】 〔概要〕 本発明のスタッカ用安全機構は、用紙送出部の下端側に
光センサと反射ミラーとで構成された侵入物体の検出部
を備えている。このため用紙送出部とスタッカテーブル
間に、例えばオペレータの“手”等が挿入された場合は
的確にこれを検出して安全対策を講じることができる。DETAILED DESCRIPTION OF THE INVENTION [Summary] The safety mechanism for a stacker according to the present invention includes an intruding object detection section including an optical sensor and a reflecting mirror on the lower end side of a paper feeding section. Therefore, if, for example, an operator's "hand" is inserted between the paper delivery section and the stacker table, this can be accurately detected and safety measures can be taken.

〔産業上の利用分野〕[Industrial application field]

本発明はプリンタのスタッカ部に装備される安全機構に
関するものである。The present invention relates to a safety mechanism installed in a stacker section of a printer.

〔従来の技術〕[Conventional technology]

第２図は従来のスタッカ用安全機構の構成例を示す要部
側断面図である。FIG. 2 is a sectional side view of a main part showing an example of the configuration of a conventional safety mechanism for a stacker.

同図に示すように、従来のスタッカ用安全機構は、用紙
送出部１の下端部に配設された安全バー４と、該安全バ
ー４を持ち上げた時に作動するマイクロスイッチ５とに
よって構成され、安全バー４は昇降孔８を介して螺入さ
れた支持ネジ７によって昇降自在に支持されている。As shown in the figure, the conventional stacker safety mechanism includes a safety bar 4 disposed at the lower end of the paper feed section 1, and a microswitch 5 that is activated when the safety bar 4 is lifted. The safety bar 4 is supported by a support screw 7 screwed into the lift hole 8 so as to be able to move up and down.

そして用紙送出部１の下端に配設された前記安全バー４
に、例えばオペレータの“手”等が触れて該安全バー４
が持ち上げられると、それに触れたマイクロスイッチ５
が作動し、スタッカテーブル６を下降させる構成になっ
ている。The safety bar 4 provided at the lower end of the paper feed section 1
For example, if an operator's hand or the like touches the safety bar 4,
is lifted, the micro switch 5 that touched it
is activated to lower the stacker table 6.

なお動作中のスタッカテーブル６は、回動する紙送りロ
ーラ２に挟持されて送出される用紙３の動きに同期して
昇降運動を行い、該用紙３をミシン目で交互に折り畳む
ようになっている。Note that the stacker table 6 in operation moves up and down in synchronization with the movement of the paper 3 that is being fed while being held between the rotating paper feed rollers 2, and folds the paper 3 alternately at the perforations. There is.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら上記従来のスタッカ用安全機構は構造が複
雑で誤動作の危険度が高く、特に安全バーがオペレータ
との接触によって作動する構造であるため、その形状等
についても安全対策上きめ細かい配慮が必要であり、ま
た安全バーをオペレータの手が届く全域、即ち用紙送出
部の手前側は勿論、両サイド等にも配設する必要がある
ため、設備費が嵩むといった問題点があった。However, the conventional stacker safety mechanism described above has a complicated structure and a high risk of malfunction.In particular, since the safety bar is activated by contact with the operator, careful consideration must be given to its shape etc. for safety measures. Furthermore, it is necessary to provide the safety bar in the entire area within reach of the operator, that is, in front of the paper delivery section, as well as on both sides, resulting in an increase in equipment costs.

〔問題点を解決するための手段〕[Means for solving problems]

本発明は第１図の実施例に示すように、用紙送出部１の
下端に配設された光センサ２０と、該光センサ２０の発
光素子１１から出射された光線１５を反射して受光素子
１２に入射させる反射ミラー１３とによってオペレータ
等の検出部が構成されている。As shown in the embodiment shown in FIG. 1, the present invention includes an optical sensor 20 disposed at the lower end of a paper feeding section 1, and a light receiving element that reflects a light beam 15 emitted from a light emitting element 11 of the optical sensor 20. 12 and a reflection mirror 13 that makes the light incident on the light beam 12 constitute a detection section for an operator or the like.

〔作用〕[Effect]

このように構成されたものにおいては、光線１５によっ
て用紙送出部１内へ侵入した物体が非接触で検出される
。In the device configured in this manner, an object that has entered the paper feed section 1 is detected by the light beam 15 without contact.

〔実施例〕〔Example〕

以下図面に示した実施例に基づいて本発明の詳細な説明
する。The present invention will be described in detail below based on embodiments shown in the drawings.

第１図は本発明のスタッカ用安全機構の一実施例を示す
図であって、（ａ）は要部正面図、山）は平面図である
が、前記第２図と同一部分には同一符号を付している。FIG. 1 is a diagram showing an embodiment of the safety mechanism for a stacker according to the present invention, in which (a) is a front view of the main part, and (a) a plan view, the same parts as in FIG. 2 are the same. A symbol is attached.

第１図（ａ）および（ｂｌに示すように、本発明のスタ
ッカ用安全機構は、用紙送出部１の下端部に配設された
光センサ２０と、該光センサの発光素子１１から出射さ
れた光線１５を順次反射して受光素子１２へ入射させる
複数個（本実施例の場合は３個）の反射ミラー１３とを
具備し、用紙送出部１′の周辺へ挿入されたオペレータ
の手等によって前記光＃ｌＡ１５が遮断されると前記光
センサ２０が作動してスタッカテーブル６をその場で停
止させ、速やかに下方へ移動させる構成になっている。As shown in FIGS. 1(a) and 1(bl), the stacker safety mechanism of the present invention includes an optical sensor 20 disposed at the lower end of the paper feeding section 1, and a light emitting element 11 of the optical sensor. It is equipped with a plurality of (three in this embodiment) reflecting mirrors 13 that sequentially reflect the reflected light rays 15 and make them incident on the light receiving element 12. When the light #lA15 is blocked by the stacker table 6, the optical sensor 20 is activated to stop the stacker table 6 on the spot and quickly move it downward.

このため、何らかの理由で用紙送出部１とスタッカテー
ブル６の間に挿入されたオペレータの手が、上昇して来
るスタッカテーブル６によって挟まれるといった事故は
的確に回避される。３０は光センサ２０の動作に対応し
てスタッカテーブル６に停止／下降を指令する制御装置
である。Therefore, an accident in which the operator's hand inserted between the sheet feeding section 1 and the stacker table 6 for some reason gets caught by the rising stacker table 6 can be precisely avoided. 30 is a control device that instructs the stacker table 6 to stop/lower in response to the operation of the optical sensor 20.

なお本実施例では、上記検出部の配設位置を用紙送出部
ｌの直ぐ下に設定しているが、配設位置については装置
毎に危険ゾーンが異なるので、それらを勘案して適宜決
定すれば良い。また光センサ２０の発光素子１１．受光
素子１２は別体にして対角線上に設置することも可能で
、このようにすると反射ミラー１３は１個使用するのみ
でよい。In this embodiment, the location of the detection section is set immediately below the paper feed section 1, but since the danger zone differs depending on the device, the location should be determined as appropriate, taking these into consideration. Good. Further, the light emitting element 11 of the optical sensor 20. The light-receiving element 12 can be separate and installed diagonally, and in this case, only one reflecting mirror 13 may be used.

さらに光センサ２０ならびに反射ミラー１３は、どちら
も一般に市販されているものを用いれば良く、別注品等
を使用する必要はない。Furthermore, both the optical sensor 20 and the reflecting mirror 13 may be commercially available products, and there is no need to use custom-made products.

〔発明の効果〕〔Effect of the invention〕

本発明は以上説明したように、光センサと反射ミラーと
で構成された簡単な検出部によって用紙送出部とスタッ
カテーブル間に挿入されたオペレータの手が非接触で検
出される構造になっている。As explained above, the present invention has a structure in which the operator's hand inserted between the paper feed unit and the stacker table is detected without contact using a simple detection unit composed of an optical sensor and a reflecting mirror. .

このため本発明の安全機構を装備したプリンタは作業の
安全性が高い。Therefore, the printer equipped with the safety mechanism of the present invention has high operational safety.

【図面の簡単な説明】[Brief explanation of drawings]

第１図（ａ）、　（ｂ）は本発明のスタッカ用安全機構
の一実施例を示す要部正面図と平面図、 第２図は従来のスタッカ用安全機構の構成例を示す要部
側断面図である。 図中、１は用紙送出部、２は紙送りローラ、３は用紙、
６はスタッカテーブル、１１は発光素子、１２は受光素
子、１３は反射ミラー、１５は光線、２０は３Ｍｚｋ （０］ 斗発明の−ｒ庭り旧 第１図FIGS. 1(a) and (b) are front views and plan views of main parts showing an embodiment of the stacker safety mechanism of the present invention, and FIG. 2 is a main part side showing an example of the configuration of a conventional stacker safety mechanism. FIG. In the figure, 1 is a paper feed unit, 2 is a paper feed roller, 3 is paper,
6 is a stacker table, 11 is a light emitting element, 12 is a light receiving element, 13 is a reflecting mirror, 15 is a light beam, 20 is 3Mzk (0) -r garden old figure 1 of the invention

Claims (1)

【特許請求の範囲】 用紙送出部（１）とスタッカテーブル（６）とを具備し
て成るスタッカに装備され、前記用紙送出部（１）にオ
ペレータ等が接近した時にそれを検出し前記スタッカテ
ーブル（６）の上昇を阻止するスタッカ用安全機構にお
いて、 前記オペレータ等の検出部は、前記用紙送出部（１）の
下端に配設された光センサ（２０）と、該光センサ（２
０）の発光素子（１１）側から出射された光線（１５）
を反射して受光素子（１２）側へ入射させる反射ミラー
（１３）とからなることを特徴とするスタッカ用安全機
構。[Scope of Claims] The stacker is equipped with a paper feed section (1) and a stacker table (6), and when an operator or the like approaches the paper feed section (1), the stacker table detects the approaching of the paper feed section (1). (6) In the stacker safety mechanism that prevents the stacker from rising, the detection unit for the operator etc. includes an optical sensor (20) disposed at the lower end of the paper feeding unit (1) and the optical sensor (20).
Light ray (15) emitted from the light emitting element (11) side of 0)
A safety mechanism for a stacker, comprising a reflecting mirror (13) that reflects light and makes it incident on a light receiving element (12) side.
JP60286351A 1985-12-18 1985-12-18 Safety mechanism for stacker Pending JPS62146877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60286351A JPS62146877A (en) 1985-12-18 1985-12-18 Safety mechanism for stacker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60286351A JPS62146877A (en) 1985-12-18 1985-12-18 Safety mechanism for stacker

Publications (1)

Publication Number Publication Date
JPS62146877A true JPS62146877A (en) 1987-06-30

Family

ID=17703259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60286351A Pending JPS62146877A (en) 1985-12-18 1985-12-18 Safety mechanism for stacker

Country Status (1)

Country Link
JP (1) JPS62146877A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7558491B2 (en) * 2005-05-31 2009-07-07 Samsung Electronics Co., Ltd. Electro-photographic image forming apparatus having one or more safety sensors installed to improve user safety
CN102848543A (en) * 2011-06-30 2013-01-02 苏州品翔电通有限公司 Grating protection device on standing shot machine platform
CN102999000A (en) * 2012-12-07 2013-03-27 武汉理工大学 Safe monitoring device for intelligent brick unloading machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7558491B2 (en) * 2005-05-31 2009-07-07 Samsung Electronics Co., Ltd. Electro-photographic image forming apparatus having one or more safety sensors installed to improve user safety
CN102848543A (en) * 2011-06-30 2013-01-02 苏州品翔电通有限公司 Grating protection device on standing shot machine platform
CN102999000A (en) * 2012-12-07 2013-03-27 武汉理工大学 Safe monitoring device for intelligent brick unloading machine

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