JPH0210560U

JPH0210560U -

Info

Publication number: JPH0210560U
Application number: JP8981888U
Authority: JP
Priority date: 1988-07-05
Filing date: 1988-07-05
Publication date: 1990-01-23

Description

[Brief explanation of the drawing]

第１図は本考案実施例の感光体支軸の支持装置
の構造を示す正面図、第２図は同感光体支軸の支
持装置を備えた画像形成装置とその周辺構造を示
す概略正面図、第３図は転写ロール方式の複写機
の要部を示す正面図、第４図は従来における感光
体ドラムの支軸の支持装置を示す断面図である。１：転写ロール、２，２ａ〜２ｄ：画像形成装
置、３，３ａ〜３ｄ：ピボツト、４，４ａ〜４ｄ
：感光体ドラム、５，５ａ〜５ｄ：フレーム、６
，６ａ〜６ｄ：帯電器、７，７ａ〜７ｄ：露光器
、８，８ａ〜８ｄ：現像器、９，９ａ〜９ｄ：転
写器、１０，１０ａ〜１０ｄ：クリーニング装置
、１１：スライドレール、１２：紙送り機構、１
３：用紙トレイ、１４：フイードロール、１５：
レジストロール、１６：ペーパシユート、１７：
剥離コロトロン、１８：リリースペーパシユート
、１９：定着装置、２０：コロトロン、２１，２
２，２４：ベアリング、２３：固定フレーム、２
５：可動フレーム、２６：切欠部、２７：ピボツ
ト、２８：ボルト、２９：緩衝ばね、４１：感光
体ドラムの支軸、５１：フレーム、５２：ボルト
、５３：フランジ、５４：ベアリング、ｄ_１，ｄ
_２：間隙、ａ：用紙。 FIG. 1 is a front view showing the structure of a support device for a photoreceptor support shaft according to an embodiment of the present invention, and FIG. 2 is a schematic front view showing an image forming apparatus equipped with the support device for a photoreceptor support shaft and its peripheral structure. 3 is a front view showing the main parts of a transfer roll type copying machine, and FIG. 4 is a sectional view showing a conventional support device for a support shaft of a photosensitive drum. 1: Transfer roll, 2, 2a to 2d: Image forming device, 3, 3a to 3d: Pivot, 4, 4a to 4d
: Photoreceptor drum, 5, 5a to 5d: Frame, 6
, 6a to 6d: Charger, 7, 7a to 7d: Exposure device, 8, 8a to 8d: Developing device, 9, 9a to 9d: Transfer device, 10, 10a to 10d: Cleaning device, 11: Slide rail, 12 :Paper feed mechanism, 1
3: Paper tray, 14: Feed roll, 15:
Registration roll, 16: Paper shoot, 17:
Peeling corotron, 18: release paper chute, 19: fixing device, 20: corotron, 21,2
2, 24: Bearing, 23: Fixed frame, 2
5: Movable frame, 26: Notch, 27: Pivot, 28: Bolt, 29: Buffer spring, 41: Photosensitive drum support shaft, 51: Frame, 52: Bolt, 53: Flange, 54: Bearing, d ₁ ,d
₂ : Gap, a: Paper.

Claims

[Claims for Utility Model Registration] 1. A fixed frame for supporting a bearing shaft having a notch through which the photoreceptor support shaft is inserted, and a fixed frame having a part of its circumferential surface exposed in the notch of the fixed frame. A plurality of bearings are pivotally supported on a fixed frame, a movable frame for supporting the bearing shaft is attached to the fixed frame so as to be able to move forward and backward, and a portion of the movable frame is located at a portion facing the notch of the fixed frame. 1. A support device for a photoconductor support shaft, comprising one or more bearings that are pivotally supported on the movable frame so that a peripheral surface thereof is exposed. 2. The device for supporting a photoconductor support shaft according to claim 1, wherein two bearings are pivotally supported by the fixed frame, and one bearing is pivotally supported by the movable frame.