JP4756987B2 - Charger wire cleaning device - Google Patents

Charger wire cleaning device Download PDF

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JP4756987B2
JP4756987B2 JP2005303181A JP2005303181A JP4756987B2 JP 4756987 B2 JP4756987 B2 JP 4756987B2 JP 2005303181 A JP2005303181 A JP 2005303181A JP 2005303181 A JP2005303181 A JP 2005303181A JP 4756987 B2 JP4756987 B2 JP 4756987B2
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spiral
spiral portion
discharge wire
along
cleaning member
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JP2007114293A (en
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貴彦 村田
弘人 小西
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Kyocera Document Solutions Inc
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Kyocera Mita Corp
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Description

本発明は、放電ワイヤーの清掃部材を備えた移動体を、前記放電ワイヤーに沿って往復移動自在に支持して、正逆に駆動回転自在に支持してある螺旋軸の螺旋部に係合させ、前記螺旋軸の一方向への駆動回転で、前記移動体を、前記螺旋部との係合がその端部において解除されるまで、前記放電ワイヤーに沿って駆動移動可能に設けてあるとともに、前記螺旋部との係合が解除された移動体が前記螺旋部側に移動するように付勢可能な付勢機構を設けて、前記螺旋軸の逆回転に伴って、前記移動体を前記螺旋部に係合自在に構成し、前記清掃部材を前記移動体に対して、一定範囲内でその移動方向に沿って相対変位自在に設けてある帯電器のワイヤー清掃装置に関する。   In the present invention, a movable body provided with a cleaning member for a discharge wire is supported so as to be reciprocally movable along the discharge wire, and is engaged with a spiral portion of a spiral shaft that is supported so as to be driven to rotate forward and backward. In the drive rotation in one direction of the spiral shaft, the moving body is provided to be movable along the discharge wire until the engagement with the spiral portion is released at the end thereof, and An urging mechanism capable of urging the movable body, which has been disengaged from the spiral portion, to move toward the spiral portion side is provided, and the movable body is moved to the spiral along with the reverse rotation of the helical shaft. The present invention relates to a wire cleaning device for a charger which is configured to be engageable with a portion and is provided so as to be relatively displaceable along a moving direction of the cleaning member within a certain range with respect to the moving body.

上記帯電器のワイヤー清掃装置は、螺旋軸の一方向への駆動回転で、移動体を、螺旋部との係合がその端部において解除されるまで、放電ワイヤーに沿って駆動移動可能に設けてあるので、螺旋軸の回転時間や回転数などを精度良く制御することなく、移動体をその移動範囲の一端側まで簡便に移動させることができるとともに、螺旋部との係合が解除された移動体がその螺旋部側に移動するように付勢可能な付勢機構を設けて、螺旋軸の逆回転に伴って、移動体を螺旋部に係合自在に構成してあるので、螺旋軸を逆回転させると、移動範囲の一端側の移動体を移動範囲の他端側に向けて確実に移動させることができるが、従来、清掃部材を移動体に対して、螺旋部の螺旋ピッチ以下の一定範囲内で、その移動方向に沿って相対変位自在に設けてある（例えば、特許文献１参照）。   The wire cleaning device for the charger is provided so that the movable body can be driven and moved along the discharge wire until the engagement with the spiral portion is released at its end by driving rotation in one direction of the spiral shaft. Therefore, it is possible to easily move the moving body to one end side of the moving range without accurately controlling the rotation time and the number of rotations of the spiral shaft, and the engagement with the spiral portion is released. An urging mechanism capable of urging the moving body to move to the spiral portion side is provided, and the moving body is configured to be freely engageable with the spiral portion in accordance with the reverse rotation of the spiral shaft. Is rotated in the reverse direction, the moving body at one end of the moving range can be reliably moved toward the other end of the moving range, but conventionally, the cleaning member is less than the helical pitch of the helical portion with respect to the moving body. Within a certain range, and can be relatively displaced along the moving direction. There Te (e.g., see Patent Document 1).

特開平１１−３２７２６６号公報JP 11-327266 A

上記帯電器のワイヤー清掃装置は、螺旋部との係合が解除された移動体がその螺旋部側に移動するように付勢可能な付勢機構を設けて、螺旋軸の逆回転に伴って、移動体を螺旋部に係合自在に構成してあるので、螺旋部との係合が解除された直後の移動体は、付勢機構の付勢力で螺旋部側に入り込むように移動し、移動体の螺旋部との係合が解除された後も、螺旋軸が同じ方向に回転し続けると、螺旋軸が一回転する毎に、移動体が、再度、螺旋部に案内されて、螺旋ピッチのストロークで螺旋軸芯方向に往復移動することになる。
この移動体の往復移動は、具体的には、図８に例示するように、螺旋状の係合片１１を、螺旋部９の螺旋ピッチＰと略同じ螺旋ピッチで、移動体５に一体に設けて、螺旋溝間で螺旋軸芯方向に相対移動自在に螺旋部９に係合し、螺旋軸７の回転に伴って、係合片１１の螺旋部９に対する係合が螺旋端部で解除されたタイミングで、図９に例示するように、係合片１１が付勢機構１８の付勢力で螺旋部９側に押し込まれ、螺旋軸７のその後の回転に伴って、係合片１１の螺旋部９に対する係合が螺旋端部で再び解除されるまで、係合片１１が螺旋部９から押し出されることの繰り返しによるものである。
ところが、従来、清掃部材を移動体に対して、螺旋部の螺旋ピッチ以下の一定範囲内で、その移動方向に沿って相対変位自在に設けてあるので、螺旋軸が一回転して、移動体が付勢機構の付勢力によって螺旋ピッチ分だけ螺旋部側に押し込まれる毎に、清掃部材がその移動体に打撃されて、放電ワイヤーに大きな負荷が衝撃的に掛かり、放電ワイヤーに大きな張力が作用したり、放電ワイヤーが捩られたりして、放電ワイヤーが切れてしまうなどの損傷を受け易い欠点がある。
つまり、図８に例示するように、係合片１１の螺旋部９に対する係合が螺旋端部で解除される直前のタイミングでは、清掃部材４が移動体５に対する相対変位範囲のうちの螺旋部９側に変位しているが、清掃部材４を移動体５に対して螺旋ピッチＰ以下の一定範囲Ｑ内で、その移動方向に沿って相対変位自在に設けてあるので、その直後に、係合片１１の螺旋部９に対する係合が解除されて、図９に例示するように、係合片１１が付勢機構１８の付勢力によって螺旋ピッチＰ分だけ螺旋部９側に押し込まれる際に、遅くとも、係合片１１が螺旋ピッチＰ分だけ螺旋部９に押し込まれたタイミングで、清掃部材４が係合片１１と一体の移動体５に打撃されるからである。
本発明は上記実情に鑑みてなされたものであって、移動体の螺旋部との係合が解除された後も、螺旋軸が同じ方向に回転し続けた場合に、放電ワイヤーが損傷を受け難い帯電器のワイヤー清掃装置を提供することを目的とする。 The charger wire cleaning device includes an urging mechanism capable of urging the movable body, which has been disengaged from the spiral portion, to move toward the spiral portion side, and with the reverse rotation of the spiral shaft. Since the movable body is configured to be freely engageable with the spiral portion, the movable body immediately after the engagement with the spiral portion is moved so as to enter the spiral portion side by the biasing force of the biasing mechanism, If the spiral axis continues to rotate in the same direction even after the engagement with the spiral portion of the moving body is released, the moving body is again guided to the spiral portion each time the spiral axis rotates once, and the spiral It reciprocates in the direction of the spiral axis with a pitch stroke.
Specifically, as illustrated in FIG. 8, the reciprocating movement of the moving body is performed by integrating the helical engagement piece 11 with the moving body 5 at substantially the same helical pitch as the helical pitch P of the spiral portion 9. Provided to engage the spiral portion 9 so as to be relatively movable in the direction of the spiral axis between the spiral grooves, and with the rotation of the spiral shaft 7, the engagement of the engagement piece 11 to the spiral portion 9 is released at the spiral end portion. 9, the engagement piece 11 is pushed into the spiral portion 9 side by the urging force of the urging mechanism 18 as illustrated in FIG. 9, and the engagement piece 11 of the engagement piece 11 is rotated with the subsequent rotation of the helical shaft 7. This is because the engagement piece 11 is pushed out of the spiral portion 9 until the engagement with the spiral portion 9 is released again at the spiral end portion.
However, conventionally, the cleaning member is provided relative to the moving body so as to be relatively displaceable along the moving direction within a certain range below the helical pitch of the spiral portion. Each time the urging mechanism is pushed to the spiral part by the urging force of the urging mechanism, the cleaning member is struck by the moving body, a large load is applied to the discharge wire, and a large tension acts on the discharge wire. Or the discharge wire is twisted, and the discharge wire is broken.
That is, as illustrated in FIG. 8, at a timing immediately before the engagement of the engagement piece 11 with the spiral portion 9 is released at the spiral end portion, the cleaning member 4 is in the spiral portion within the relative displacement range with respect to the moving body 5. However, immediately after that, the cleaning member 4 is provided so as to be relatively displaceable along the moving direction within a certain range Q equal to or less than the helical pitch P with respect to the moving body 5. When the engagement of the coupling piece 11 with respect to the spiral portion 9 is released and the engagement piece 11 is pushed into the spiral portion 9 side by the spiral pitch P by the biasing force of the biasing mechanism 18, as illustrated in FIG. This is because, at the latest, the cleaning member 4 is hit by the movable body 5 integrated with the engagement piece 11 at the timing when the engagement piece 11 is pushed into the spiral portion 9 by the spiral pitch P.
The present invention has been made in view of the above circumstances, and the discharge wire is damaged when the helical shaft continues to rotate in the same direction even after the engagement with the spiral portion of the moving body is released. An object of the present invention is to provide a wire cleaning device for a difficult charger.

本発明の第１特徴構成は、放電ワイヤーの清掃部材を備えた移動体を、前記放電ワイヤーに沿って往復移動自在に支持して、正逆に駆動回転自在に支持してある螺旋軸の螺旋部に係合させ、前記螺旋軸の一方向への駆動回転で、前記移動体を、前記螺旋部との係合がその端部において解除されるまで、前記放電ワイヤーに沿って駆動移動可能に設けてあるとともに、前記螺旋部との係合が解除された移動体が前記螺旋部側に移動するように付勢可能な付勢機構を設けて、前記螺旋軸の逆回転に伴って、前記移動体を前記螺旋部に係合自在に構成し、前記清掃部材を前記移動体に対して、一定範囲内でその移動方向に沿って相対変位自在に設けてある帯電器のワイヤー清掃装置であって、前記清掃部材を前記移動体に対して、前記螺旋部の螺旋ピッチを越える一定範囲内で、その移動方向に沿って相対変位自在に設けてある点にある。   A first characteristic configuration of the present invention is a spiral of a spiral shaft that supports a movable body provided with a discharge wire cleaning member so as to be reciprocally movable along the discharge wire, and is supported so as to be driven to rotate forward and backward. The movable body can be driven and moved along the discharge wire until the engagement with the spiral portion is released at the end by driving rotation in one direction of the spiral shaft. And an urging mechanism capable of urging the movable body, which has been disengaged from the spiral portion, to move toward the spiral portion, and with the reverse rotation of the spiral shaft, A charger wire cleaning device in which a moving body is configured to be freely engageable with the spiral portion, and the cleaning member is provided so as to be relatively displaceable along a moving direction within a certain range with respect to the moving body. The cleaning member with respect to the moving body. Within a certain range beyond the pitch, it lies in is provided freely relative displacement along the direction of movement.

〔作用及び効果〕
清掃部材を移動体に対して、螺旋部の螺旋ピッチを越える一定範囲内で、その移動方向に沿って相対変位自在に設けてあるので、移動体の螺旋部との係合が解除された後も、螺旋軸が同じ方向に回転し続けた場合に、螺旋軸が一回転して、移動体が付勢機構の付勢力によって螺旋ピッチ分だけ螺旋部に押し込まれる毎に、清掃部材がその移動体に打撃されるようなおそれがない。
つまり、図６に例示するように、移動体５の螺旋部９に対する係合が螺旋端部で解除される直前のタイミングで、清掃部材４が移動体５に対する相対変位範囲のうちの螺旋部９側に変位していても、清掃部材４を移動体５に対して、螺旋部９の螺旋ピッチＰを越える一定範囲Ｑ内で、その移動方向に沿って相対変位自在に設けてあるので、その直後に、移動体５の螺旋部９に対する係合が解除されて、図８に例示するように、移動体５が付勢機構１８の付勢力によって螺旋ピッチＰ分だけ螺旋部９に押し込まれる時に、清掃部材４がその移動体５に打撃されるおそれがないのである。
その結果、放電ワイヤーに大きな張力を作用させたり、放電ワイヤーを捩るような大きな負荷が放電ワイヤーに衝撃的に掛かるおそれが少なくなり、放電ワイヤーが損傷を受け難い。 [Action and effect]
Since the cleaning member is provided relative to the moving body within a certain range that exceeds the spiral pitch of the spiral portion and is relatively displaceable along the moving direction, after the engagement with the spiral portion of the moving body is released However, if the spiral shaft continues to rotate in the same direction, the cleaning member moves each time the spiral shaft rotates once and the moving body is pushed into the spiral portion by the spiral pitch by the biasing force of the biasing mechanism. There is no risk of being hit by the body.
That is, as illustrated in FIG. 6, at the timing immediately before the engagement of the movable body 5 with the spiral portion 9 is released at the spiral end, the spiral portion 9 in the relative displacement range of the movable member 5 with respect to the movable body 5 is obtained. Even if it is displaced to the side, the cleaning member 4 is provided relative to the moving body 5 so as to be relatively displaceable along the moving direction within a certain range Q exceeding the helical pitch P of the helical portion 9. Immediately after the engagement of the moving body 5 with respect to the spiral portion 9 is released, and the moving body 5 is pushed into the spiral portion 9 by the spiral pitch P by the biasing force of the biasing mechanism 18 as illustrated in FIG. The cleaning member 4 is not likely to be hit by the moving body 5.
As a result, there is less possibility that a large load is applied to the discharge wire or a large load that twists the discharge wire is impacted on the discharge wire, and the discharge wire is not easily damaged.

以下に本発明の実施の形態を図面に基づいて説明する。尚、図面において従来例と同一の符号で表示した部分は、同一又は相当の部分を示している。
図１，２は、複写機やプリンター，ファックスなどの電子写真式画像形成装置に備えてあるコロトロン式帯電器Ａと、その帯電器Ａの放電ワイヤー１を清掃するために設けてある本発明による帯電器のワイヤー清掃装置Ｂを示している。 Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.
1 and 2 show the present invention provided for cleaning a corotron charger A provided in an electrophotographic image forming apparatus such as a copying machine, a printer, and a fax machine, and a discharge wire 1 of the charger A. The wire cleaning device B of the charger is shown.

前記帯電器Ａは、感光体ドラム２の長手方向に沿って架設してあるシールド電極用の放電ワイヤー１に電圧を印加して、その近傍の空気をコロナ放電によりイオン化するコロナ放電機構を設けて、感光体ドラム２をコロナ帯電させるように構成してあり、放電ワイヤー１は、シールドケース３の感光体ドラム２側に臨む開口部に沿ってドラム軸芯と略平行に架設してある。   The charger A is provided with a corona discharge mechanism for applying a voltage to the shield electrode discharge wire 1 installed along the longitudinal direction of the photosensitive drum 2 and ionizing the air in the vicinity thereof by corona discharge. The photosensitive drum 2 is configured to be corona-charged, and the discharge wire 1 is installed substantially parallel to the drum axis along the opening of the shield case 3 facing the photosensitive drum 2 side.

前記清掃装置Ｂは、放電ワイヤー１を挟持して研磨清掃する清掃部材４を備えた移動体５を、放電ワイヤー１に沿って往復移動自在に、シールドケース３に支持するとともに、シールドケース３の一端側に設けてある直流電動モータ利用の駆動ユニット６により正逆に駆動回転自在な螺旋軸７で、この移動体５を、清掃部材４と共に、放電ワイヤー１に沿って往復駆動移動自在な往復駆動機構８を設けて構成してある。   The cleaning device B supports a movable body 5 having a cleaning member 4 that sandwiches and cleans the discharge wire 1 so as to be reciprocally movable along the discharge wire 1. A reciprocating reciprocating movable body 5 along with the cleaning member 4 can be reciprocally driven along a discharge wire 1 by a spiral shaft 7 which can be driven to rotate forward and backward by a drive unit 6 using a DC electric motor provided on one end side. A drive mechanism 8 is provided.

前記往復駆動機構８は、図３に示すように、螺旋ピッチＰが全長に亘って略一定の螺旋部９を螺旋軸７に設け、その螺旋部９を移動体５に一体に設けてある筒体１０に挿通して、移動体５を螺旋部９に係合させるとともに、螺旋軸７を、放電ワイヤー１に沿って、シールドケース３の長手方向両端部に回転自在に支持して構成してある。   As shown in FIG. 3, the reciprocating drive mechanism 8 is provided with a spiral portion 9 having a substantially constant spiral pitch P over the entire length on the spiral shaft 7, and the spiral portion 9 is integrally provided on the moving body 5. The movable body 5 is inserted into the body 10 and engaged with the spiral portion 9, and the spiral shaft 7 is rotatably supported along the discharge wire 1 at both ends in the longitudinal direction of the shield case 3. is there.

具体的には、図４，５に示すように、螺旋状の係合片１１を螺旋部９の螺旋ピッチＰと略同じ螺旋ピッチで筒体１０の内側に一体形成して、その係合片１１を、螺旋溝間で螺旋軸芯方向に相対移動自在に、螺旋部９に係合させてある。   Specifically, as shown in FIGS. 4 and 5, the helical engagement piece 11 is integrally formed on the inner side of the cylindrical body 10 at substantially the same helical pitch as the helical pitch P of the spiral portion 9, and the engagement piece 11 is engaged with the spiral portion 9 so as to be relatively movable in the spiral axis direction between the spiral grooves.

前記螺旋部９は、螺旋ピッチＰが全長に亘って略一定の螺旋コイル１２を丸棒１３に同芯状に外嵌固定して設けてあり、螺旋軸７の両端部には、螺旋コイル１２を固定していない丸棒部分のみからなる非螺旋部１４を設けて、筒体１０を螺旋部９から非螺旋部１４に移行自在に設け、螺旋軸７の一方向への駆動回転で、移動体５を、図６に示すように、係合片１１の螺旋部９との係合がその螺旋端部において解除されて、筒体１０が非螺旋部１４に移行するまで、清掃部材４と共に放電ワイヤー１に沿って駆動移動可能に設けて、放電ワイヤー１を清掃部材４で清掃可能に構成してある。   The spiral portion 9 is provided with a spiral coil 12 having a substantially constant spiral pitch P over the entire length thereof and fitted to a round bar 13 so as to be concentrically fitted and fixed to both ends of the spiral shaft 7. A non-spiral portion 14 consisting only of a round bar portion that is not fixed is provided, and the cylindrical body 10 is provided so as to be able to move from the spiral portion 9 to the non-spiral portion 14, and is moved by driving rotation in one direction of the spiral shaft 7. As shown in FIG. 6, the body 5 is moved together with the cleaning member 4 until the engagement of the engagement piece 11 with the spiral portion 9 is released at the spiral end and the cylindrical body 10 moves to the non-spiral portion 14. The discharge wire 1 can be driven and moved along the discharge wire 1, and the discharge wire 1 can be cleaned by the cleaning member 4.

そして、非螺旋部１４を軸支する軸支部１５と螺旋部９との間の各非螺旋部１４に座板１６とコイルバネ１７とを装着して、図６に示すように、筒体１０が非螺旋部１４に移行するに伴って、その筒体１０の端面でコイルバネ１７を圧縮変形させることにより、そのコイルバネ１７に蓄力される付勢力で、図７に示すように、係合片１１の螺旋部９との係合が解除されたタイミングで、移動体５が螺旋部９側に移動するように付勢可能な付勢機構１８を設けて、螺旋軸７の逆回転に伴って、係合片１１を螺旋部９に係合自在に構成してある。   Then, a seat plate 16 and a coil spring 17 are attached to each non-spiral portion 14 between the shaft support portion 15 and the spiral portion 9 that pivotally supports the non-spiral portion 14, and as shown in FIG. When the coil spring 17 is compressed and deformed at the end surface of the cylindrical body 10 as it moves to the non-spiral portion 14, the urging force accumulated in the coil spring 17 is used, as shown in FIG. At the timing when the engagement with the spiral portion 9 is released, a biasing mechanism 18 capable of biasing the moving body 5 to move toward the spiral portion 9 is provided, and with the reverse rotation of the spiral shaft 7, The engaging piece 11 is configured to be engageable with the spiral portion 9.

前記清掃部材４は、その基部１９側を移動体５に形成してある矩形凹部２０に抜け止め状態で入り込ませて、移動体５に対して、螺旋部９の螺旋ピッチＰを越える一定範囲Ｑ内で、その移動方向に沿って相対変位自在に設けてある。   The cleaning member 4 is inserted into a rectangular recess 20 formed on the movable body 5 on the base 19 side in a state of retaining the cleaning member 4 so that the movable body 5 has a certain range Q exceeding the helical pitch P of the spiral portion 9. And is relatively displaceable along the moving direction.

〔その他の実施形態〕
１．本発明による帯電器のワイヤー清掃装置は、螺旋部に螺旋軸径方向から係合するピン状の係合部材を移動体側に一体に設けて、移動体を、螺旋部との係合がその端部において解除されるまで、放電ワイヤーに沿って駆動移動可能に設けてあっても良い。
２．本発明による帯電器のワイヤー清掃装置は、螺旋ピッチが螺旋軸中央部と螺旋軸端部とで異なる螺旋部を設けてあっても良く、この場合は、螺旋軸端部における螺旋ピッチを越える一定範囲内で、その移動方向に沿って相対変位自在に設けてあれば良い。
３．本発明による帯電器のワイヤー清掃装置は、スコロトロン式帯電器のワイヤー清掃装置であっても良い。 [Other Embodiments]
1. In the charger wire cleaning device according to the present invention, a pin-like engagement member that engages the spiral portion from the spiral axis diameter direction is integrally provided on the movable body side, and the movable body is engaged with the spiral portion at its end. It may be provided so as to be movable along the discharge wire until it is released at the part.
2. The wire cleaning device for a charger according to the present invention may be provided with spiral portions having different spiral pitches at the central portion of the spiral shaft and the end portion of the spiral shaft, and in this case, the constant exceeds the spiral pitch at the end portion of the spiral shaft. It suffices if the relative displacement is provided along the moving direction within the range.
3. The wire cleaning device for a charger according to the present invention may be a wire cleaning device for a scorotron charger.

帯電器のワイヤー清掃装置の斜視図Perspective view of charger wire cleaning device 要部の斜視図Perspective view of main parts 要部の一部断面側面図Partial cross-sectional side view of the main part 要部の正面図Front view of main parts 要部の縦断面図Longitudinal section of the main part 要部の一部断面側面図Partial cross-sectional side view of the main part 要部の一部断面側面図Partial cross-sectional side view of the main part 従来技術を示す要部の一部断面側面図Partial sectional side view of the main part showing the prior art 従来技術を示す要部の一部断面側面図Partial sectional side view of the main part showing the prior art

符号の説明Explanation of symbols

１ 放電ワイヤー
４ 清掃部材
５ 移動体
７ 螺旋軸
９ 螺旋部
１８ 付勢機構
Ｐ 螺旋ピッチ
Ｑ 一定範囲 DESCRIPTION OF SYMBOLS 1 Discharge wire 4 Cleaning member 5 Moving body 7 Spiral shaft 9 Spiral part 18 Energizing mechanism P Spiral pitch Q Fixed range

Claims (1)

放電ワイヤーの清掃部材を備えた移動体を、前記放電ワイヤーに沿って往復移動自在に支持して、正逆に駆動回転自在に支持してある螺旋軸の螺旋部に係合させ、前記螺旋軸の一方向への駆動回転で、前記移動体を、前記螺旋部との係合がその端部において解除されるまで、前記放電ワイヤーに沿って駆動移動可能に設けてあるとともに、
前記螺旋部との係合が解除された移動体が前記螺旋部側に移動するように付勢可能な付勢機構を設けて、前記螺旋軸の逆回転に伴って、前記移動体を前記螺旋部に係合自在に構成し、
前記清掃部材を前記移動体に対して、一定範囲内でその移動方向に沿って相対変位自在に設けてある帯電器のワイヤー清掃装置であって、
前記清掃部材を前記移動体に対して、前記螺旋部の螺旋ピッチを越える一定範囲内で、その移動方向に沿って相対変位自在に設けてある帯電器のワイヤー清掃装置。 A movable body provided with a discharge wire cleaning member is supported so as to be reciprocally movable along the discharge wire, and is engaged with a spiral portion of a spiral shaft that is supported so as to be driven to rotate forward and backward. With the drive rotation in one direction, the movable body is provided to be movable along the discharge wire until the engagement with the spiral portion is released at the end thereof, and
An urging mechanism capable of urging the movable body, which has been disengaged from the spiral portion, to move toward the spiral portion side is provided, and the movable body is moved to the spiral along with the reverse rotation of the helical shaft. It is configured to be freely engageable with the part,
A wire cleaning device for a charger in which the cleaning member is provided relative to the moving body so as to be relatively displaceable along a moving direction within a certain range,
A wire cleaning device for a charger, wherein the cleaning member is provided relative to the moving body so as to be relatively displaceable along a moving direction within a certain range exceeding a spiral pitch of the spiral portion.
JP2005303181A 2005-10-18 2005-10-18 Charger wire cleaning device Expired - Fee Related JP4756987B2 (en)

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US7715749B2 (en) * 2006-09-14 2010-05-11 Xerox Corporation Charge corotron auto-cleaner device
JP5520878B2 (en) * 2011-04-28 2014-06-11 京セラドキュメントソリューションズ株式会社 Reciprocating mechanism of moving body, cleaning mechanism, exposure apparatus, and image forming apparatus
JP7330674B2 (en) * 2018-06-29 2023-08-22 三菱重工サーマルシステムズ株式会社 Filter cleaning unit and air conditioner

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JPH0734431Y2 (en) * 1987-08-31 1995-08-02 三田工業株式会社 Wire cleaning equipment
JP2569640Y2 (en) * 1991-02-01 1998-04-28 富士ゼロックス株式会社 Corotron cleaning equipment
JP3549731B2 (en) * 1998-05-09 2004-08-04 京セラミタ株式会社 Charger wire cleaning device
JPH11327385A (en) * 1998-05-16 1999-11-26 Mita Ind Co Ltd Image forming device

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