JPH0261848U

JPH0261848U -

Info

Publication number: JPH0261848U
Application number: JP14171388U
Authority: JP
Priority date: 1988-10-29
Filing date: 1988-10-29
Publication date: 1990-05-09

Description

[Brief explanation of drawings]

第１図は本考案実施例の給紙装置の平面図、第
２図は同給紙装置を装備した複写機の側面図、第
３図はスリツプクラツチを内蔵した従動歯車の断
面図、第４図は本考案の他の実施例の側面図、第
５図は第４図に示す給紙装置の要部詳細図、第６
図は従来例の給紙装置の側面図である。１，２３：感光体、２：帯電器、３：光学系、
４：現像装置、５：転写コロトロン、６：剥離コ
ロトロン、７：クリーニング装置、８：搬送装置
、９，２４：定着装置、１０：給紙装置、１１：
露光部、１２，３０，４３：ピツクアツプロール
、１３，１６：回転軸、１４：従動歯車、１４ａ
：スリツプクラツチ本体、１４ｂ：歯車本体、１
４ｃ：リング部材、１４ｄ：スプリング止め部材
、１４ｅ：圧縮スプリング、１４ｆ，１４ｇ：摩
擦部材、１５，４２：給紙ロール、１７：駆動歯
車、１８：中間歯車、１９ａ，１９ｂ：支持アー
ム、２０：両面・多重転写装置、２１：給紙カセ
ツト、２２，３１：給紙ロール、２５：ゲート、
２６：両面・多重切り換えゲート、２７：搬送路
、２８：中間トレイ、２９：寄せコロ、３２：中
間トレイユニツト、３３：排紙トレイ、４０：給
紙部、４１：トレイ、４４：捌き部材、４５：圧
縮コイルばね、ａ：用紙、Ｌ：撓み。 Fig. 1 is a plan view of a paper feeding device according to an embodiment of the present invention, Fig. 2 is a side view of a copying machine equipped with the same paper feeding device, Fig. 3 is a sectional view of a driven gear with a built-in slip clutch, and Fig. 4 is a sectional view of a driven gear with a built-in slip clutch. The figure is a side view of another embodiment of the present invention, FIG. 5 is a detailed view of the main part of the paper feeding device shown in FIG.
The figure is a side view of a conventional paper feeding device. 1, 23: Photoreceptor, 2: Charger, 3: Optical system,
4: Developing device, 5: Transfer corotron, 6: Peeling corotron, 7: Cleaning device, 8: Conveying device, 9, 24: Fixing device, 10: Paper feeding device, 11:
Exposure section, 12, 30, 43: Pick-up roll, 13, 16: Rotating shaft, 14: Driven gear, 14a
: Slip clutch body, 14b: Gear body, 1
4c: Ring member, 14d: Spring stopper member, 14e: Compression spring, 14f, 14g: Friction member, 15, 42: Paper feed roll, 17: Drive gear, 18: Intermediate gear, 19a, 19b: Support arm, 20: Double-sided/multiple transfer device, 21: Paper feed cassette, 22, 31: Paper feed roll, 25: Gate,
26: Double-sided/multiple switching gate, 27: Conveyance path, 28: Intermediate tray, 29: Collector, 32: Intermediate tray unit, 33: Paper ejection tray, 40: Paper feed section, 41: Tray, 44: Sorting member, 45: Compression coil spring, a: paper, L: deflection.

Claims

[Claims for Utility Model Registration] 1. A paper feeding device comprising a pick-up roll that presses against paper stored in a paper tray to pull out the paper, and a paper feed roll that conveys the paper pulled out from the paper tray. , characterized in that a power transmission system for transmitting the rotation of the paper feed roll to the pick-up roll is provided, and a sliding friction member is provided in the power transmission system to absorb a difference in circumferential speed between the paper feed roll and the pick-up roll. Paper feeding device. 2. The power transmission system includes a drive gear that rotates integrally with the paper feed roll, an intermediate gear that meshes with the drive gear, and a driven gear that meshes with the intermediate gear and rotates integrally with the pick-up roll. The paper feeding device according to claim 1, characterized in that: 3. The paper feeding device according to claim 2, wherein the sliding friction member is a slip clutch built into the driven gear.