JPH0114132B2 - - Google Patents
Info
- Publication number
- JPH0114132B2 JPH0114132B2 JP56044634A JP4463481A JPH0114132B2 JP H0114132 B2 JPH0114132 B2 JP H0114132B2 JP 56044634 A JP56044634 A JP 56044634A JP 4463481 A JP4463481 A JP 4463481A JP H0114132 B2 JPH0114132 B2 JP H0114132B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- bottom plate
- top cover
- filler
- detection
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 21
- 239000000945 filler Substances 0.000 description 17
- 230000003287 optical effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002079 cooperative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/04—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to absence of articles, e.g. exhaustion of pile
Landscapes
- Controlling Sheets Or Webs (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Paper Feeding For Electrophotography (AREA)
Description
【発明の詳細な説明】
本発明は電子写真式複写器等に於いて、所定の
大きさに截断された複写紙等を積層貯容する用紙
貯容装置に於ける検知装置に係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detection device in a paper storage device for stacking and storing copy sheets cut to a predetermined size in an electrophotographic copying machine or the like.
複写機の用紙貯容装置の一つとして、用紙を截
置され該用紙を給紙ローラへ押付ける底板と紙の
補給のために開閉自在な上蓋とを有し、前記上蓋
と前記底板とが連動連結され、前記上蓋の開方向
移動に伴ない前記底板が前記給紙ローラより遠去
かる方向へ移動するよう構成された用紙貯容装置
がすでに提案されている。 As one of the paper storage devices of a copying machine, it has a bottom plate on which paper is placed and presses the paper against a paper feed roller, and a top cover that can be opened and closed for replenishing paper, and the top cover and the bottom plate are interlocked. A paper storage device has already been proposed in which the bottom plate is connected to the top cover and is configured to move in a direction away from the paper feed roller as the top cover moves in the opening direction.
上述の如き用紙貯容装置にあつては、底板上に
於ける用紙の有無を検出するセンサに加えて上蓋
部材が閉じられ、底板が給紙ローラへ押付けられ
て正常な給紙作業が行なわれ得る状態にあるか否
かを検出するセンサが必要になる。 In the paper storage device as described above, in addition to the sensor that detects the presence or absence of paper on the bottom plate, the top cover member is closed, and the bottom plate is pressed against the paper feed roller to perform normal paper feeding operation. A sensor is required to detect whether the condition exists or not.
本発明は上述の如き用紙貯容装置に於ける上述
の如き二つの状態の検出を一つのセンサにより行
なえるよう構成された検知装置を提供することを
目的としている。 SUMMARY OF THE INVENTION An object of the present invention is to provide a detection device configured to detect the above-mentioned two states in the above-mentioned paper storage device using a single sensor.
かかる目的は、本発明によれば、上述の如き用
紙貯容装置に於いて、前記底板上に於ける用紙の
有無に応動する第一の応動手段と、前記上蓋の開
閉移動に応動する第二の応動手段と、前記第一及
び第二の応動手段のいずれによつても駆動される
検知要素と、前記検知要素の移動に応動して用紙
の有無及び上蓋の開閉を検出する一つのセンサを
有している如き検知装置によつて達成される。 According to the present invention, in the paper storage device as described above, a first response means responds to the presence or absence of paper on the bottom plate, and a second response means responds to the opening/closing movement of the top cover. It has a response means, a detection element driven by both the first and second response means, and one sensor that detects the presence or absence of paper and the opening/closing of the top cover in response to the movement of the detection element. This is achieved by a detection device such as
以下に添付の図を参照して本発明を実施例につ
いて詳細に説明する。 In the following, the invention will be explained in detail by way of example embodiments with reference to the accompanying drawings.
第１図は本発明による検知装置が組込まれた用
紙貯容装置の一つの実施例を示す縦断面図であ
る。第１図に於いて、符号１は用紙貯容装置を総
括的に示している。用紙貯容装置に貯容されてい
る用紙Ｐは最も上位にあるものより給紙ローラ２
とストツパパツド３による共働作用により一枚ず
つ給紙され、ガイド板４に案内されてレジストロ
ーラ対５へ送られるようになつている。 FIG. 1 is a longitudinal sectional view showing one embodiment of a paper storage device incorporating a detection device according to the present invention. In FIG. 1, reference numeral 1 generally indicates a paper storage device. The paper P stored in the paper storage device is stored in the paper feed roller 2 from the paper P stored in the paper storage device.
The sheets are fed one by one by the cooperative action of the stopper pad 3 and the stopper pad 3, and are guided by a guide plate 4 and sent to a pair of registration rollers 5.
用紙貯容装置１は上部が開口した箱形のトレイ
６を有している。トレイ６の底部のうち後方部は
固定の底板７により構成され、前方部は可動底板
８により構成されている。可動底板８はその後端
部８ａにてトレイ６に実質的に枢支され、その枢
支部を中心として図にて上下方向に傾動可能にな
つている。可動底板８は圧縮コイルばね９のばね
力により図にて上方へ向けて付勢されている。即
ち、可動底板８は圧縮コイルばね９のばね力によ
つて給紙ローラ２へ向けて付勢されている。トレ
イ６には枢軸１０によつてその一端を枢支されて
トレイ６の上部を開閉する上蓋１１が設けられて
いる。 The paper storage device 1 has a box-shaped tray 6 with an open top. The rear part of the bottom of the tray 6 is constituted by a fixed bottom plate 7, and the front part is constituted by a movable bottom plate 8. The movable bottom plate 8 is substantially pivotally supported by the tray 6 at its rear end portion 8a, and is capable of tilting in the vertical direction in the figure around the pivot point. The movable bottom plate 8 is urged upward in the figure by the spring force of a compression coil spring 9. That is, the movable bottom plate 8 is urged toward the paper feed roller 2 by the spring force of the compression coil spring 9. The tray 6 is provided with an upper lid 11 whose one end is pivotally supported by a pivot 10 to open and close the upper part of the tray 6.
上蓋１１はその前端部の上端に折曲形成された
軸受片部１２を有しており、この軸受片部にてア
ーム部材１３、リンク部材１４等によつて可動底
板８と駆動連結され、枢軸１０を中心として図に
て反時計方向へ回動されたとき、即ち開かれたと
き可動底板８をばね９のばね力に抗して押下げる
ようになつている。尚、上蓋と可動底板との連動
連結機構についてより詳細な説明が必要ならば、
本願出願人と同一の出願人の出願による特願昭56
−6892号明細書を参照されたい。可動底板８の図
にて上方にはブラケツト２０が固定配置されてい
る。このブラケツト２０は、第２図乃至第４図に
良く示されている如く、第一の応動手段としての
フイラー２１の軸部２２を回転自在に支持してい
る。フイラー２１はそのフイラー端２３にて可動
底板８にて形成された開口部２４に整合し、可動
底板８上に一枚でも用紙Ｐがある時には、第３図
に於いて実線で示されている如く、その用紙上に
乗り、図示されている如き回動位置を保ち、これ
に対し可動底板８上に一枚の用紙も無い時には自
重によつて開口部２４内に落込み、第３図にて仮
想線で示されている如き回動位置に位置するよう
になつている。フイラー２１の軸部２２の端部に
は検知板２５がそのハブ部２６にてねじ２７によ
り固定的に取付けられている。検知板２５はその
先端部にシヤツタ片２８を有しており、このシヤ
ツタ片２８は発光素子と受光素子とを対向配置さ
れた光電スイツチ２９の対向ギヤツプ３０に選択
的に進入し、前記発光素子と受光素子との間の光
軸を選択的に遮断するようになつている。検知板
２５はフイラー２１が第３図にて実線で示されて
いる位置にあるときにはこのシヤツタ片２８が対
向ギヤツプ３０内に位置し、これに対しフイラー
２１が第３図にて仮想線で示されている位置にあ
るときにはそのシヤツタ片２８が対向ギヤツプ３
０より抜け出すように取付けられている。光電ス
イツチ２９は前記光軸が遮断されている時とそう
でない時とで互いに異つた信号を図示されていな
い複写装置の制御装置へ出力するようになつてい
る。尚、制御装置は前記光軸が遮断されている時
のみ、用紙貯容装置に於いては複写作業を行なえ
る状態と判断するようになつていて良い。またフ
イラー２１の軸部２２には連動板３７がそのハブ
部３８にてねじ３９により固定されている。ま
た、トレイ６はその側板部にて第二の応動手段と
してのフイラー３１を軸３２にて枢動自在に支持
している。このフイラー３１はそのフイラー端３
３にて上蓋１１の下底面に選択的に係合し、上蓋
１１が正規の閉位置にある時には、第３図に於い
て実線で示されている如く、ばね３４のばね力に
抗してストツパピン３５より離れた回動位置に保
持され、これに対し上蓋１１が前記閉位置より所
定角度以上開かれた時には、第４図に示されてい
る如くばね３４のばね力によりストツパピン３５
に当接する位置まで回動するようになつている。
このフイラー３１はその係合端部３６にて連動板
３７に選択的に係合し、上蓋１１が閉位置にある
時には、第３図に示されている如く、フイラー端
２３、検知板２５及び連動板３７が図にて実線で
示されている位置と図にて仮想線で示されている
位置との間で自由に移動することを許し、これに
対し上蓋１１が閉位置より開かれてばね３４によ
り図にて反時計方向に回動された時には前記連動
板３７に係合して検知板２５をこれのシヤツタ片
２８が前記対向ギヤツプ３０より抜け出る位置ま
で駆動するようになつている。 The upper lid 11 has a bearing piece 12 bent at the upper end of its front end, and is drivingly connected to the movable bottom plate 8 by an arm member 13, a link member 14, etc. at this bearing piece, and pivots. When the movable bottom plate 8 is rotated counterclockwise in the figure about 10, that is, when opened, the movable bottom plate 8 is pushed down against the spring force of the spring 9. If you need a more detailed explanation of the interlocking connection mechanism between the top cover and the movable bottom plate,
Patent application filed by the same applicant as the applicant in 1972
See specification No.-6892. A bracket 20 is fixedly disposed above the movable bottom plate 8 in the drawing. As clearly shown in FIGS. 2 to 4, this bracket 20 rotatably supports a shaft portion 22 of a filler 21 serving as a first response means. The filler 21 is aligned with the opening 24 formed in the movable bottom plate 8 at its filler end 23, and when there is at least one sheet of paper P on the movable bottom plate 8, it is shown in solid lines in FIG. As shown in FIG. and is positioned at the rotational position shown by the imaginary line. A detection plate 25 is fixedly attached to the end of the shaft portion 22 of the filler 21 at its hub portion 26 with screws 27. The detection plate 25 has a shutter piece 28 at its tip, and this shutter piece 28 selectively enters an opposing gap 30 of a photoelectric switch 29 in which a light emitting element and a light receiving element are disposed facing each other, and the light emitting element and the light receiving element are disposed facing each other. The optical axis between the light receiving element and the light receiving element is selectively blocked. The detection plate 25 indicates that when the filler 21 is in the position shown by the solid line in FIG. When the shutter piece 28 is in the position shown in FIG.
It is installed so that it goes beyond 0. The photoelectric switch 29 outputs different signals to a control device (not shown) of the copying machine depending on whether the optical axis is blocked or not. The control device may be configured to determine that the paper storage device is ready for copying only when the optical axis is blocked. Further, an interlocking plate 37 is fixed to the shaft portion 22 of the filler 21 at its hub portion 38 with screws 39. Further, the tray 6 supports a filler 31, which serves as a second response means, on its side plate so as to be pivotable about a shaft 32. This filler 31 is the filler end 3
3 selectively engages with the lower bottom surface of the upper lid 11, and when the upper lid 11 is in the normal closed position, it resists the spring force of the spring 34, as shown by the solid line in FIG. When the top cover 11 is held at a rotational position away from the stopper pin 35 and opened by a predetermined angle or more from the closed position, the stopper pin 35 is held by the spring force of the spring 34 as shown in FIG.
It is designed to rotate until it touches the position.
The filler 31 selectively engages the interlocking plate 37 at its engaging end 36, so that when the top lid 11 is in the closed position, the filler end 23, the sensing plate 25 and The interlocking plate 37 is allowed to move freely between the position shown by the solid line in the figure and the position shown by the imaginary line in the figure, whereas the upper cover 11 is opened from the closed position. When rotated counterclockwise in the figure by a spring 34, it engages with the interlocking plate 37 and drives the detection plate 25 to a position where its shutter piece 28 comes out of the opposed gear 30.
従つて、検知板２５のシヤツタ片２８が光電ス
イツチ２９の対向ギヤツプ３０内に位置できるの
は、第３図に於いて実線で示されている如く、可
動底板８上に用紙Ｐが少なくとも一枚存在し、し
かも上蓋１１が正規の閉位置にある時のみであ
る。可動底版８上に用紙Ｐがまつたく無い時には
第３図に於いて仮想線で示されている如く、フイ
ラー２１のフイラー端２３が開口部２４内に落込
むことにより検知板２５が図にて反時計方向へ回
動してそのシヤツタ片２８が前記対向ギヤツプ３
０より図にて下方へ抜け出し、また上蓋１１が正
規の閉じ位置に無い時には、第４図に示されてい
る如く、フイラー３１及び連動板３７によつて検
知板２５が図にて時計方向へ回動し、前記対向ギ
ヤツプ３０より図にて上方へ抜け出す。尚、この
時、フイラー２３が持ち上げられて可動底板８よ
り離れ、用紙の補給を容易にする。 Therefore, the shutter piece 28 of the detection plate 25 can be positioned within the opposing gap 30 of the photoelectric switch 29 when there is at least one sheet of paper P on the movable bottom plate 8, as shown by the solid line in FIG. exists, and only when the top lid 11 is in the normal closed position. When there is no paper P on the movable bottom plate 8, the filler end 23 of the filler 21 falls into the opening 24, as shown by the imaginary line in FIG. The shutter piece 28 rotates counterclockwise to the opposing gear 3.
0, and when the top cover 11 is not in the normal closed position, the detection plate 25 is moved clockwise in the figure by the filler 31 and the interlocking plate 37, as shown in FIG. It rotates and comes out of the opposing gear 30 upwards in the figure. At this time, the filler 23 is lifted and separated from the movable bottom plate 8, making it easier to replenish paper.
上述した説明から本発明によれば、一つの光電
スイツチにより底板上の用紙の有無と上蓋の開閉
状態を検出できることが理解されよう。 From the above description, it will be understood that according to the present invention, the presence or absence of paper on the bottom plate and the open/closed state of the top cover can be detected using a single photoelectric switch.
第１図は本発明による検知装置が組込まれた用
紙貯容装置の一つの実施例を示す概略構成図、第
２図は本発明による検知装置を示す分解斜視図、
第３図及び第４図は本発明による検知装置の各作
動状態を示す側面図である。
１……用紙貯容装置、２……給紙ローラ、６…
…トレイ、８……可動底板、１１……上蓋、２１
……フイラー、２４……開口部、２５……検知
板、２９……光電スイツチ、３１……フイラー、
３７……連動板。
FIG. 1 is a schematic configuration diagram showing one embodiment of a paper storage device incorporating a detection device according to the present invention, and FIG. 2 is an exploded perspective view showing the detection device according to the present invention.
3 and 4 are side views showing each operating state of the detection device according to the present invention. 1...Paper storage device, 2...Paper feed roller, 6...
...Tray, 8...Movable bottom plate, 11...Top lid, 21
... Filler, 24 ... Opening, 25 ... Detection plate, 29 ... Photoelectric switch, 31 ... Filler,
37...Interlocking board.
Claims (1)
る底板と用紙の補給のために開閉自在に設けられ
た上蓋とが連動連結されている用紙貯容装置に於
ける検知装置にして、 前記底板上に於ける用紙の有無に応動する第一
の応動手段と、 前記上蓋の開閉移動に応動する第二の応動手段
と、 前記第一及び第二の応動手段のいずれによつて
も駆動される検知要素と、 前記検知要素の移動に応動して用紙の有無及び
上蓋の開閉を検出するセンサと を有していることを特徴とする検知装置。[Claims] 1. Detection in a paper storage device in which a bottom plate on which paper is placed and which presses the paper against a paper feed roller is interlocked with a top cover that is provided to be openable and closable for replenishing paper. The apparatus includes: a first response means that responds to the presence or absence of paper on the bottom plate; a second response means that responds to the opening/closing movement of the top cover; and any of the first and second response means. 1. A detection device comprising: a detection element that is driven even when the detection element moves; and a sensor that detects the presence or absence of paper and the opening/closing of a top cover in response to the movement of the detection element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56044634A JPS57160843A (en) | 1981-03-26 | 1981-03-26 | Copy sheet storage case detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56044634A JPS57160843A (en) | 1981-03-26 | 1981-03-26 | Copy sheet storage case detecting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57160843A JPS57160843A (en) | 1982-10-04 |
| JPH0114132B2 true JPH0114132B2 (en) | 1989-03-09 |
Family
ID=12696853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56044634A Granted JPS57160843A (en) | 1981-03-26 | 1981-03-26 | Copy sheet storage case detecting system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57160843A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6056643U (en) * | 1983-09-27 | 1985-04-20 | 株式会社リコー | Paper monitoring device for paper feeding device |
| JPS6342644U (en) * | 1986-09-09 | 1988-03-22 | ||
| JPS6348751U (en) * | 1986-09-16 | 1988-04-02 | ||
| US7403722B2 (en) * | 2005-02-22 | 2008-07-22 | Lexmark International, Inc. | Integrated media and media tray sensing in an image forming device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5943555Y2 (en) * | 1978-06-06 | 1984-12-25 | 京セラミタ株式会社 | Copy machine automatic paper feeder |
-
1981
- 1981-03-26 JP JP56044634A patent/JPS57160843A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57160843A (en) | 1982-10-04 |
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