JP5870599B2 - Driving device and image forming apparatus - Google Patents
Driving device and image forming apparatus Download PDFInfo
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- JP5870599B2 JP5870599B2 JP2011223542A JP2011223542A JP5870599B2 JP 5870599 B2 JP5870599 B2 JP 5870599B2 JP 2011223542 A JP2011223542 A JP 2011223542A JP 2011223542 A JP2011223542 A JP 2011223542A JP 5870599 B2 JP5870599 B2 JP 5870599B2
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Description
本発明は、電磁クラッチを備えた駆動装置と、これを用いた画像形成装置に関する。 The present invention relates to a drive device provided with an electromagnetic clutch and an image forming apparatus using the drive device.
図8は、複写機、プリンタ、ファクシミリ、あるいはこれらの2つ以上の機能を有する複合機等の画像形成装置の一例の全体構造を概念的に示す断面図である。本例の画像形成装置は、主な構成として、原稿を読み取る読み取りユニット111、画像を形成する画像形成部112、自動原稿搬送装置(ADF)113、ADF113から送り出される原稿をスタックする原稿排紙トレイ114、給紙カセット115ないし118を備える給紙部119、記録用紙をスタックする排紙部(排紙トレイ120)を備えている。 FIG. 8 is a cross-sectional view conceptually showing the overall structure of an example of an image forming apparatus such as a copying machine, a printer, a facsimile machine, or a multifunction machine having two or more of these functions. The image forming apparatus according to the present embodiment mainly includes a reading unit 111 that reads a document, an image forming unit 112 that forms an image, an automatic document feeder (ADF) 113, and a document discharge tray that stacks documents sent from the ADF 113. 114, a paper feed unit 119 including paper feed cassettes 115 to 118, and a paper discharge unit (discharge tray 120) for stacking recording paper.
この装置では、ADF113の原稿台121上に原稿Dをセットして図示せぬ操作部での操作、例えばプリントキーの押下操作をすると、最上位の原稿Dがピックアップローラ122の回転により矢印B1方向へ送り出され、原稿搬送ベルト123の回転により、画像読み取りユニット111に固定されたコンタクトガラス124上へ給送され、そこで停止する。コンタクトガラス124上に載置された原稿Dの画像は、画像形成部112とコンタクトガラス124の間に位置する読み取り装置125によって読み取る。読み取り装置125は、コンタクトガラス124上の原稿Dを照明する光源126、原稿画像を結像する光学系127、原稿画像を結像させるCCD等からなる光電変換素子128等を有している。画像読み取り終了後、原稿Dを原稿搬送ベルト123の回転により矢印B2方向へ搬送して原稿排紙トレイ114上へ排出する。このように、原稿Dを1枚ずつコンタクトガラス124上へ給送して原稿画像を画像読み取りユニット111によって読み取る。 In this apparatus, when the document D is set on the document table 121 of the ADF 113 and an operation on an operation unit (not shown), for example, a press operation of a print key is performed, the uppermost document D is rotated in the direction of arrow B 1 by the rotation of the pickup roller 122. And is fed onto the contact glass 124 fixed to the image reading unit 111 by the rotation of the document conveying belt 123, and stops there. The image of the document D placed on the contact glass 124 is read by a reading device 125 positioned between the image forming unit 112 and the contact glass 124. The reading device 125 includes a light source 126 that illuminates the document D on the contact glass 124, an optical system 127 that forms an image of the document, a photoelectric conversion element 128 that includes a CCD that forms an image of the document, and the like. After the image reading is completed, the document D is transported in the direction of arrow B2 by the rotation of the document transport belt 123 and discharged onto the document discharge tray 114. In this way, the document D is fed one by one onto the contact glass 124 and the document image is read by the image reading unit 111.
一方、画像形成部112の内部には、像担持体である感光体130が配置してある。感光体130は、図において時計方向に回転駆動し、帯電装置131によって表面を所定の電位に帯電させる。また、書込ユニット132からは、読み取り装置125によって読み取った画像情報に応じて光変調したレーザ光Lを照射し、帯電させた感光体130の表面をこのレーザ光Lで露光し、これによって感光体130の表面に静電潜像を形成する。この静電潜像は、現像装置133を通るとき、対向する転写装置134によって感光体130と転写装置134の間に給送された記録材Pに転写する。トナー像転写後の感光体130の表面は、クリーニング装置135によって清掃する。 On the other hand, inside the image forming unit 112, a photoreceptor 130 as an image carrier is disposed. The photoconductor 130 is driven to rotate clockwise in the drawing, and the charging device 131 charges the surface to a predetermined potential. Further, the writing unit 132 emits a laser beam L that is light-modulated in accordance with image information read by the reading device 125, and the surface of the charged photoreceptor 130 is exposed with the laser beam L. An electrostatic latent image is formed on the surface of the body 130. When the electrostatic latent image passes through the developing device 133, the electrostatic latent image is transferred to the recording material P fed between the photosensitive member 130 and the transfer device 134 by the opposing transfer device 134. The surface of the photoreceptor 130 after the toner image transfer is cleaned by a cleaning device 135.
画像形成部112の下部に配置した複数の給紙カセット115ないし118には、紙等の記録材Pを収容してあり、いずれかの給紙カセット115ないし118から記録材Pを矢印B3方向へ送り出し、その記録材Pの表面に、上述のように感光体130の表面に形成したトナー像を転写する。次に、記録材Pを矢印B4で示すように画像形成部112内の定着装置140を通し、熱と圧力の作用によって記録材Pの表面に転写されたトナー像を定着させる。136を通った記録材Pを排出ローラ対137によって搬送し、矢印B5で示すように排紙トレイ120へ排出し、スタックする。 A plurality of paper feed cassettes 115 to 118 arranged at the lower part of the image forming unit 112 contain recording material P such as paper, and the recording material P is fed from any of the paper feed cassettes 115 to 118 in the direction of arrow B3. The toner image formed on the surface of the photoreceptor 130 as described above is transferred onto the surface of the recording material P. Next, the recording material P is passed through the fixing device 140 in the image forming unit 112 as indicated by an arrow B4, and the toner image transferred onto the surface of the recording material P by the action of heat and pressure is fixed. The recording material P that has passed through 136 is conveyed by the discharge roller pair 137, discharged to the discharge tray 120 as shown by an arrow B5, and stacked.
このような画像形成装置では、種々の構成部品の駆動に電磁クラッチを備えた駆動装置を用いているが、そのような駆動装置では、電磁クラッチの回り止めと、取り付けられる側の回転規制部材との衝突音を低減する方法として、規制部材と回り止めの間に弾性部材を構成し、衝突音を低減する技術が知られている。 In such an image forming apparatus, a drive device provided with an electromagnetic clutch is used to drive various components. However, in such a drive device, an anti-rotation of the electromagnetic clutch and a rotation restricting member on the side to be attached are provided. As a method of reducing the collision noise, a technique is known in which an elastic member is formed between the regulating member and the rotation stopper to reduce the collision noise.
特許文献1には、電磁クラッチの動作時に発生する衝突騒音を低減する目的で、弾性部材を用いてスラスト方向の移動規制を行う方法が開示されている。 Patent Document 1 discloses a method of restricting movement in the thrust direction using an elastic member for the purpose of reducing collision noise generated during operation of an electromagnetic clutch.
図1は、電磁クラッチの動作時にクラッチ回転止めと回転規制部材との衝突音が発生する構成について説明するための図である。図1の例では、入力ギヤ軸7に保持された入力ギヤ6によってギヤホルダ5に保持された電磁クラッチ1に動力が伝達され、電磁クラッチ1が動作しているとき、クラッチ出力軸4に動力が伝達される。伝達時に、電磁クラッチ1自体が回転しようとするが、回転規制部材3と電磁クラッチ1に構成されている回り止め2が接触することにより、電磁クラッチ1の回転が規制される。このとき、回転規制部材3と回り止め2との衝突音が発生する。
FIG. 1 is a diagram for explaining a configuration in which a collision sound between a clutch rotation stopper and a rotation restricting member is generated during operation of an electromagnetic clutch. In the example of FIG. 1, power is transmitted to the electromagnetic clutch 1 held by the gear holder 5 by the input gear 6 held by the input gear shaft 7. When the electromagnetic clutch 1 is in operation, power is sent to the clutch output shaft 4. Communicated. At the time of transmission, the electromagnetic clutch 1 itself tries to rotate, but the rotation of the electromagnetic clutch 1 is restricted by contact between the rotation restricting member 3 and the rotation stopper 2 formed on the electromagnetic clutch 1. At this time, a collision sound between the rotation restricting member 3 and the rotation stopper 2 is generated.
図2は、回転規制部材と回り止めの衝突音低減に係る従来の構成について説明するための図である。図2の例では、回転規制部材3と回り止め2の間に弾性部材8を構成し、回転規制部材3と回り止め2の衝突音を低減している。
Figure 2 is a diagram for explaining a conventional configuration of the reduced rotation restricting member and the detent Me collision sound. In the example of FIG. 2, an elastic member 8 is configured between the rotation restricting member 3 and the rotation stopper 2 to reduce the collision noise between the rotation restricting member 3 and the rotation stopper 2.
しかし、弾性部材を用いた技術では、装置構成が複雑になり、コストが増加するという問題がある。 However, the technique using an elastic member has a problem that the device configuration becomes complicated and the cost increases.
そこで本発明は、特別な構成を用いずに、電磁クラッチの回り止めと回転規制部材の衝突音を低減することを目的とする。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to reduce the collision noise between the rotation stop of the electromagnetic clutch and the rotation restricting member without using a special configuration.
本発明に係る駆動装置は、電磁クラッチと、前記電磁クラッチに取り付けた回転止めと、前記電磁クラッチの回転を規制する回転規制部材と、前記回転止めのスラスト方向の動きを前記電磁クラッチへの取り付け面側から規制する第1のスラスト規制部材と、前記回転止めのスラスト方向の動きを前記電磁クラッチへの取り付け面と反対側から規制する第2のスラスト規制部材とを備え、前記第1、第2のスラスト規制部材で前記回転止めを挟んで保持可能としたことを特徴とする。 The drive device according to the present invention includes an electromagnetic clutch, a rotation stopper attached to the electromagnetic clutch, a rotation restricting member that restricts rotation of the electromagnetic clutch, and a movement of the rotation stopper in the thrust direction to the electromagnetic clutch. A first thrust restricting member for restricting from the surface side; and a second thrust restricting member for restricting the movement of the rotation stop in the thrust direction from the side opposite to the attachment surface to the electromagnetic clutch. It is possible to hold the rotation stopper between two thrust restricting members.
本発明によれば、特別な構成を用いずに、電磁クラッチの回り止めと回転規制部材の衝突音を低減することができる。 According to the present invention, it is possible to reduce the collision noise between the rotation stop of the electromagnetic clutch and the rotation restricting member without using a special configuration.
本発明の実施形態に係る駆動装置では、電磁クラッチ動作時に、動力伝達部以外に、電磁クラッチの本体が回転しようとする。電磁クラッチに構成された回り止めをスラスト方向で挟み込み、回り止めの回転を規制する。これにより、電磁クラッチの回り止めと回転規制部材との衝突を削減する。このことから、電磁クラッチの回り止めが回転規制部材に衝突する際の衝突音を低減するので、特別な構成を用いずに、電磁クラッチの回り止めと回転規制部材の衝突音が低減する。 In the drive device according to the embodiment of the present invention, the main body of the electromagnetic clutch tends to rotate in addition to the power transmission unit during the operation of the electromagnetic clutch. The rotation stopper configured in the electromagnetic clutch is sandwiched in the thrust direction to restrict rotation of the rotation stopper. Thereby, the collision between the rotation stop of the electromagnetic clutch and the rotation restricting member is reduced. From this, since the collision noise when the rotation stop of the electromagnetic clutch collides with the rotation restricting member is reduced, the rotation noise of the electromagnetic clutch and the collision noise of the rotation restriction member are reduced without using a special configuration.
すなわち本発明の実施形態では、電磁クラッチ動作時に、動力伝達部以外に、電磁クラッチの本体が回転しようとするので、電磁クラッチに設けた回り止めを前記第1、第2のスラスト規制部材によりスラスト方向で挟み込み、回り止めの回転を規制する。これにより、電磁クラッチの回り止めと回転規制部材との衝突を削減する。 That is, in the embodiment of the present invention, when the electromagnetic clutch is operated, the main body of the electromagnetic clutch is going to rotate in addition to the power transmission unit. Therefore, the detent provided on the electromagnetic clutch is thrust by the first and second thrust regulating members. It is pinched in the direction and restricts rotation of the detent. Thereby, the collision between the rotation stop of the electromagnetic clutch and the rotation restricting member is reduced.
以下、本発明の実施形態を図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<実施形態1>
図3は、本発明の一実施形態に係る回転規制部材と回り止めの衝突音低減の構成について説明するための図である。図3では、電磁クラッチ1の回り止め2は第1の回転止めスラスト規制部材9と第2の回転止めスラスト規制部材10によって挟み込み、位置を規制する。第1の回転止めスラスト規制部材9は回転規制部材3に取り付けて構成してある。また第2の回転止めスラスト規制部材10はギヤホルダ5に取り付けて構成してある。
<Embodiment 1>
FIG. 3 is a diagram for explaining a configuration for reducing the collision noise between the rotation restricting member and the detent according to the embodiment of the present invention. In Figure 3, jamming times Ri stop 2 of the electromagnetic clutch 1 includes a first detent thrust regulating member 9 by the second rotation stop thrust regulating member 10 to regulate the position. The first rotation stop thrust restricting member 9 is attached to the rotation restricting member 3. The second rotation stop thrust restricting member 10 is attached to the gear holder 5 .
入力ギヤ軸7に保持させた入力ギヤ6によってギヤホルダ5に保持させた電磁クラッチ1に動力が伝達され、電磁クラッチ1が動作しているとき、クラッチ出力軸4に動力が伝達される。
Power is transmitted to the electromagnetic clutch 1 held in the gear holder 5 by the input gear 6 held on the input gear shaft 7 , and power is transmitted to the clutch output shaft 4 when the electromagnetic clutch 1 is operating.
動力伝達時には、電磁クラッチ1自体が回転しようとするが、回り止め2が第1の回転止めスラスト規制部材9と第2の回転止めスラスト規制部材10によって挟み込まれているために回転せず、回転規制部材3に衝突しない。このことで、追加の部品を用いずに、電磁クラッチ1の動作時に発生する回転規制部材3と回り止め2の衝突音を低減する。
At the time of power transmission, the electromagnetic clutch 1 itself tries to rotate, but the rotation stopper 2 does not rotate because it is sandwiched between the first rotation stop thrust restricting member 9 and the second rotation stop thrust restricting member 10 and rotates. It does not collide with the regulating member 3. This is, without using additional components, reducing the rotation restricting member 3 and rotating Ri of the set 2 collision sound generated during operation of the electromagnetic clutch 1.
<実施形態2>
図4に示すように、第1の回転止めスラスト規制部材9と第2の回転止めスラスト規制部材10をネジ11で固定してもよい。これにより、確実に回り止め2をスラスト方向で規制することができる。
<Embodiment 2>
As shown in FIG. 4, the first anti-rotation thrust restricting member 9 and the second anti-rotation thrust restricting member 10 may be fixed with screws 11. Thereby, the rotation stopper 2 can be reliably regulated in the thrust direction.
<実施形態3>
また図5に示すように、第2の回転止めスラスト規制部材10を外装材として構成してもよい。これにより、設計レイアウトの自由度を増加させることができる。
<Embodiment 3>
Further, as shown in FIG. 5, the second anti-rotation thrust restricting member 10 may be configured as an exterior material. Thereby, the freedom degree of design layout can be increased.
<実施形態4>
また図6に示すように、第2の回転止めスラスト規制部材10が第1の回転止めスラスト規制部材9よりも回転止め2の外側(径方向:図の左右方向)で規制する構成となっている。これにより、スラスト規制部材9、10の精度を緩和することができる。
<Embodiment 4>
Further, as shown in FIG. 6, the second anti-rotation thrust restricting member 10 is configured to restrict the outer side of the anti-rotation 2 (radial direction: left and right in the figure) relative to the first anti-rotation thrust restricting member 9. Yes. Thereby, the precision of the thrust control members 9 and 10 can be eased.
<実施形態5>
さらに図7に示すように、第1の回転止めスラスト規制部材9と第2の回転止めスラスト規制部材10をばね性を持たせた形状である構成として、回転止めを規制する部材の精度を緩和することができる。図示の例では、規制部材9、10の回転止め2と接する先端部を、回転止め2と接する側が先細りとなる断面形状として弾性を発揮する形状としてある。
<Embodiment 5>
Further, as shown in FIG. 7, the first anti-rotation thrust restricting member 9 and the second anti-rotation thrust restricting member 10 are configured to have a spring property, and the accuracy of the member restricting the anti-rotation is eased. can do. In the illustrated example, the tip portions of the regulating members 9 and 10 that are in contact with the rotation stopper 2 have a shape that exhibits elasticity as a cross-sectional shape in which the side in contact with the rotation stopper 2 is tapered.
本発明は以上説明した実施形態に限定されるものではなく、多くの変形が本発明の技術的思想内で当分野において通常の知識を有する者により可能である。 The present invention is not limited to the embodiments described above, and many variations are possible by those having ordinary knowledge in the art within the technical idea of the present invention.
1:電磁クラッチ
3:回転規制部材
4:クラッチ出力軸
5:ギヤホルダ
6:入力ギヤ
7:入力ギヤ軸
9、10:スラスト規制部材
11:ネジ
1: Electromagnetic clutch 3: Rotation restricting member 4: Clutch output shaft
5 : Gear holder
6 : Input gear
7 : Input gear shaft 9, 10: Thrust restricting member 11: Screw
Claims (8)
前記電磁クラッチに取り付けた回転止めと、
前記電磁クラッチの回転を規制する回転規制部材と、
前記回転止めのスラスト方向の動きを前記電磁クラッチへの取り付け面側から規制する第1のスラスト規制部材と、
前記回転止めのスラスト方向の動きを前記電磁クラッチへの取り付け面と反対側から規制する第2のスラスト規制部材とを備え、
前記第1、第2のスラスト規制部材で前記回転止めを挟んで保持可能としたことを特徴とする駆動装置。 An electromagnetic clutch,
A rotation stopper attached to the electromagnetic clutch;
A rotation restricting member for restricting rotation of the electromagnetic clutch;
A first thrust restricting member for restricting the movement of the rotation stop in the thrust direction from the mounting surface side to the electromagnetic clutch;
A second thrust restricting member for restricting the movement of the rotation stop in the thrust direction from the side opposite to the attachment surface to the electromagnetic clutch;
A driving apparatus characterized in that the first and second thrust regulating members can be held with the rotation stopper interposed therebetween.
An image forming apparatus using the drive device according to claim 1 and comprising at least an image forming unit.
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JP2011223542A JP5870599B2 (en) | 2011-10-11 | 2011-10-11 | Driving device and image forming apparatus |
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JP2011223542A JP5870599B2 (en) | 2011-10-11 | 2011-10-11 | Driving device and image forming apparatus |
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JP5870599B2 true JP5870599B2 (en) | 2016-03-01 |
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JPS5752405Y2 (en) * | 1975-09-29 | 1982-11-15 | ||
JPS59164578U (en) * | 1983-04-19 | 1984-11-05 | 豊田 英男 | Simple household hanging equipment |
JPS6161332U (en) * | 1984-09-27 | 1986-04-25 | ||
JP2001336547A (en) * | 2000-05-29 | 2001-12-07 | Canon Inc | Drive transmission unit and image forming device provided with the same |
JP3832815B2 (en) * | 2001-01-16 | 2006-10-11 | 株式会社リコー | Drive transmission device and image forming apparatus including the same |
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