JP2016061828A5 - - Google Patents

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JP2016061828A5
JP2016061828A5 JP2014187584A JP2014187584A JP2016061828A5 JP 2016061828 A5 JP2016061828 A5 JP 2016061828A5 JP 2014187584 A JP2014187584 A JP 2014187584A JP 2014187584 A JP2014187584 A JP 2014187584A JP 2016061828 A5 JP2016061828 A5 JP 2016061828A5
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rotating body
contact
contacting
separation
separating
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JP2016061828A (en
JP6344648B2 (en
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Claims (15)

所定の駆動手段により回転駆動する第1回転体と該第1回転体に対向配置される第2回転体とを接離させる接離手段と、
前記第1回転体と前記第2回転体との対向領域に被搬送材の先端が進入する前に該第1回転体と該第2回転体とを離間させ、前記対向領域に被搬送材の先端が進入した直後に該被搬送材を挟持するように該第1回転体と該第2回転体とを当接させるべく、前記接離手段を制御する接離制御手段とを有する回転体接離装置において、
前記第1回転体の回転速度を検出する速度検出手段を有し、
前記接離制御手段は、前記速度検出手段の検出結果に基づき、前記接離手段によって前記第1回転体と前記第2回転体とを当接させる時期の該第1回転体の速度変動タイミングを検知し、該速度変動タイミングに応じて該第1回転体と該第2回転体とを当接させるときの当接動作条件を決定し、決定した当接動作条件に従って該第1回転体と該第2回転体とを当接させるべく、前記接離手段を制御することを特徴とする回転体接離装置。
Contacting / separating means for contacting / separating a first rotating body that is rotationally driven by a predetermined driving means and a second rotating body that is disposed opposite to the first rotating body;
Before the leading end of the transported material enters the opposing area between the first rotating body and the second rotating body, the first rotating body and the second rotating body are separated from each other, and the transported material is moved to the facing area. Immediately after the leading edge enters, the rotating body contact having contact / separation control means for controlling the contact / separation means to bring the first rotating body and the second rotating body into contact with each other so as to sandwich the conveyed material. In the separation device,
Having a speed detection means for detecting a rotation speed of the first rotating body;
The contact / separation control means determines a speed fluctuation timing of the first rotating body at a time when the first rotating body and the second rotating body are brought into contact with each other by the contacting / separating means based on the detection result of the speed detecting means. Detecting and determining a contact operating condition when the first rotating body and the second rotating body are contacted according to the speed fluctuation timing, and according to the determined contact operating condition, The rotating body contacting / separating device, wherein the contacting / separating means is controlled to contact the second rotating body.
請求項1に記載の回転体接離装置において、
前記接離制御手段は、前記対向領域に被搬送材を進入させない期間に前記接離手段によって前記第1回転体と前記第2回転体とを当接させ、前記速度検出手段の検出結果に基づいて該第1回転体の速度変動タイミングを検知することを特徴とする回転体接離装置
The rotating body contacting / separating device according to claim 1,
The contact / separation control means causes the contact / separation means to contact the first rotating body and the second rotating body during a period in which the conveyed material does not enter the facing area, and based on the detection result of the speed detection means. And a rotating body contacting / separating device for detecting a speed fluctuation timing of the first rotating body.
請求項1又は2に記載の回転体接離装置において、
前記当接動作条件は、当接動作開始時における前記第1回転体と前記第2回転体との離間量を含むことを特徴とする回転体接離装置。
In the rotating body contacting / separating device according to claim 1 or 2,
The rotating body contacting / separating device according to claim 1, wherein the contact operation condition includes a separation amount between the first rotating body and the second rotating body at the start of the contact operation.
請求項3に記載の回転体接離装置において、
前記接離手段によって前記第1回転体と前記第2回転体とが当接することにより該第1回転体に速度変動が発生する基準タイミングを記憶する記憶手段を有し、
前記接離制御手段は、補正前の離間量をX1とし、前記接離手段による当接動作中の当接速度をV0とし、前記基準タイミングをT0とし、前記速度変動タイミングをT1としたとき、下記の式(1)より求まる補正量ΔXの分だけ補正前の離間量X1を補正した量を、前記離間量として決定することを特徴とする回転体接離装置。
ΔX = V0 × (T0−T1) ・・・(1)
The rotating body contacting / separating device according to claim 3,
Storing means for storing a reference timing at which a speed fluctuation occurs in the first rotating body by the contact between the first rotating body and the second rotating body by the contacting / separating means;
The contact / separation control means has a distance before correction as X1, a contact speed during a contact operation by the contact / separation means as V0, the reference timing as T0, and the speed variation timing as T1. A rotating body contacting / separating device characterized in that an amount obtained by correcting a separation amount X1 before correction by a correction amount ΔX obtained from the following equation (1) is determined as the separation amount.
ΔX = V0 × (T0−T1) (1)
請求項1乃至4のいずれか1項に記載の回転体接離装置において、
前記当接動作条件は、前記接離手段による当接動作中の当接速度を含むことを特徴とする回転体接離装置。
The rotating body contacting / separating device according to any one of claims 1 to 4,
The rotating body contact / separation apparatus according to claim 1, wherein the contact operation condition includes a contact speed during a contact operation by the contact / separation means.
請求項5に記載の回転体接離装置において、
前記接離手段によって前記第1回転体と前記第2回転体とを当接させる時期に第1回転体の速度変動が発生する基準タイミングを記憶する記憶手段を有し、
前記接離制御手段は、前記接離手段による当接動作中における補正前の当接速度をV0とし、前記基準タイミングをT0とし、前記速度変動タイミングをT1としたとき、下記の式(2)より求まるV2を、前記当接速度として決定することを特徴とする回転体接離装置。
V2 = V0 × T1/T0 ・・・(2)
The rotating body contacting / separating device according to claim 5,
Storage means for storing a reference timing at which a speed fluctuation of the first rotating body occurs at a time when the first rotating body and the second rotating body are brought into contact with each other by the contacting / separating means;
When the contact speed before correction during the contact operation by the contact / separation means is V0, the reference timing is T0, and the speed variation timing is T1, the contact / separation control means has the following equation (2): A rotating body contacting / separating device characterized in that V2 obtained from the above is determined as the contact speed.
V2 = V0 × T1 / T0 (2)
請求項4又は6に記載の回転体接離装置において、
前記記憶手段は、所定の時点で、前記接離手段によって前記第1回転体と前記第2回転体とが当接することによる速度変動が規定値以下となる当接動作条件で該第1回転体と該第2回転体とを当接させるときに該第1回転体に発生する速度変動の発生タイミングを前記基準タイミングとして記憶することを特徴とする回転体接離装置。
The rotating body contacting / separating device according to claim 4 or 6,
The storage means is configured so that, at a predetermined time, the first rotating body under a contact operation condition in which a speed fluctuation caused by the contact between the first rotating body and the second rotating body by the contact / separation means becomes a predetermined value or less. A rotating body contacting / separating device, wherein a timing of occurrence of a speed fluctuation generated in the first rotating body when the first rotating body is brought into contact with the second rotating body is stored as the reference timing.
請求項1乃至7のいずれか1項に記載の回転体接離装置において、
前記接離制御手段は、前記接離手段による当接動作が開始された後に、前記速度検出手段により検出される前記第1回転体の速度が所定の閾値を超えて変化した時点を、前記速度変動タイミングとして検知することを特徴とする回転体接離装置。
The rotating body contacting / separating device according to any one of claims 1 to 7,
The contact / separation control means determines the time point when the speed of the first rotating body detected by the speed detection means has changed beyond a predetermined threshold after the contact operation by the contact / separation means has started. A rotating body contacting / separating device characterized in that it is detected as a fluctuation timing.
請求項1乃至8のいずれか1項に記載の回転体接離装置において、
前記接離手段は、接離用駆動手段により接離用回転体を回転駆動させることにより前記第1回転体と前記第2回転体とを接離させるものであって、該接離用回転体の回転移動量に応じて該第1回転体と該第2回転体との離間量を変更可能なものであり、かつ、該接離用回転体の回転速度に応じて該第1回転体と該第2回転体との当接速度を変更可能なものであることを特徴とする回転体接離装置。
The rotating body contacting / separating device according to any one of claims 1 to 8,
The contacting / separating means is configured to bring the first rotating body and the second rotating body into contact / separation by rotationally driving the contacting / separating rotating body by the contacting / separating driving means. The amount of separation between the first rotating body and the second rotating body can be changed according to the rotational movement amount of the first rotating body and the first rotating body according to the rotational speed of the contacting / separating rotating body. A rotating body contacting / separating device characterized in that the contact speed with the second rotating body can be changed.
請求項9に記載の回転体接離装置において、
前記接離用回転体は、前記第1回転体及び前記第2回転体の一方の回転体に対してカム面が当接するように、他方の回転体に配置されるカムであることを特徴とする回転体接離装置。
The rotating body contacting / separating device according to claim 9,
The contacting / separating rotating body is a cam disposed on the other rotating body such that a cam surface comes into contact with one rotating body of the first rotating body and the second rotating body. Rotating body contact and separation device.
請求項9又は10に記載の回転体接離装置において、
前記接離用駆動手段は、PWM制御により駆動するDCブラシレスモータ又はステッピングモータであることを特徴とする回転体接離装置。
The rotating body contacting / separating device according to claim 9 or 10,
The rotating / contacting / separating device according to claim 1, wherein the contacting / separating driving means is a DC brushless motor or a stepping motor driven by PWM control.
請求項1乃至11のいずれか1項に記載の回転体接離装置において、
前記接離制御手段は、被搬送材を挟み込んで回転駆動することで該被搬送材を前記対向領域へ送り出す搬送回転体対の回転負荷情報を取得し、該回転負荷情報に応じて前記当接動作条件を決定することを特徴とする回転体接離装置。
The rotating body contacting / separating device according to any one of claims 1 to 11,
The contact / separation control means obtains rotational load information of a pair of transport rotating bodies that feeds the transported material to the facing area by rotating the material while sandwiching the transported material, and performs the contact according to the rotational load information. A rotating body contacting / separating device characterized by determining operating conditions.
請求項12に記載の回転体接離装置において、
前記搬送回転体対用の駆動手段は、PWM信号に応じて駆動するDCブラシレスモータであり、
前記接離制御手段は、前記PWM信号を前記回転負荷情報として取得することを特徴とする回転体接離装置。
The rotating body contacting / separating device according to claim 12,
The driving means for the conveying rotating body pair is a DC brushless motor that is driven according to a PWM signal,
The rotating / contacting / separating device according to claim 1, wherein the contacting / separating control unit acquires the PWM signal as the rotational load information.
所定の駆動手段により回転駆動する像担持体に対向配置される転写回転体と、
前記像担持体と前記転写回転体との対向領域である転写領域に記録材の先端が進入する前に該像担持体と該転写回転体とを離間させ、前記転写領域に記録材の先端が進入した直後に該記録材を挟持するように該像担持体と該転写回転体とを当接させる接離装置とを備え、
前記像担持体上に担持された画像を前記転写領域で前記記録材上に転写する転写装置において、
前記接離装置として、請求項1乃至13のいずれか1項に記載の回転体接離装置を用いることを特徴とする転写装置。
A transfer rotator disposed opposite to an image carrier that is rotationally driven by a predetermined driving means;
Before the leading edge of the recording material enters the transfer area, which is the opposite area between the image carrier and the transfer rotator, the image carrier and the transfer rotator are separated from each other, and the leading edge of the recording material is located in the transfer area. A contact / separation device that abuts the image carrier and the transfer rotator so as to sandwich the recording material immediately after entering,
In the transfer device for transferring the image carried on the image carrier onto the recording material in the transfer region,
14. A transfer device using the rotating body contact / separation device according to claim 1 as the contact / separation device.
所定の駆動手段により回転駆動する像担持体と、
前記像担持体上に担持された画像を記録材上に転写する転写装置とを備えた画像形成装置において、
前記転写装置として、請求項14に記載の転写装置を用いることを特徴とする画像形成装置。
An image carrier that is rotationally driven by a predetermined driving means;
In an image forming apparatus comprising a transfer device that transfers an image carried on the image carrier onto a recording material,
An image forming apparatus using the transfer device according to claim 14 as the transfer device.
JP2014187584A 2014-09-16 2014-09-16 Rotating body contacting / separating device, transfer device, and image forming device Active JP6344648B2 (en)

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JP2016061828A5 true JP2016061828A5 (en) 2017-03-02
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JP7013771B2 (en) * 2016-09-30 2022-02-01 株式会社リコー Transfer device, transfer device, image forming device, position control method of rotating body in transfer device, and position control program of rotating body
US10322895B2 (en) 2016-09-30 2019-06-18 Ricoh Company, Ltd. Material conveyor, transfer device incorporating the material conveyor, image forming apparatus incorporating the transfer device, method of position control of rotary bodied, and non-transitory computer readable storage medium
JP7225878B2 (en) * 2019-02-12 2023-02-21 コニカミノルタ株式会社 IMAGE FORMING APPARATUS, TRANSFER METHOD AND TRANSFER CONTROL PROGRAM
JP7275704B2 (en) 2019-03-19 2023-05-18 株式会社リコー Conveyance control device and image reading device
JP2020190666A (en) * 2019-05-23 2020-11-26 コニカミノルタ株式会社 Pressing drive mechanism and image forming apparatus

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US5966559A (en) * 1997-09-23 1999-10-12 Eastman Kodak Company Method and apparatus for sensing and accomodating different thickness paper stocks in an electrostatographic machine
JP5039521B2 (en) * 2007-06-08 2012-10-03 株式会社リコー Sheet-like member conveying device and image forming apparatus
JP5224172B2 (en) * 2008-02-19 2013-07-03 株式会社リコー Transfer device and image forming apparatus
JP6019965B2 (en) * 2012-09-10 2016-11-02 株式会社リコー Image forming apparatus
JP2014071330A (en) * 2012-09-28 2014-04-21 Ricoh Co Ltd Transfer device and image forming apparatus

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