JPS6377930U

JPS6377930U -

Info

Publication number: JPS6377930U
Application number: JP17320786U
Authority: JP
Priority date: 1986-11-11
Filing date: 1986-11-11
Publication date: 1988-05-23

Description

[Brief explanation of the drawing]

第１図は本考案に係る原稿自動給送機構の構成
図、第２図は同機構の駆動伝達機構の構成図、第
３図は第２図の―線断面図、第４図は第３図
の―線断面図、第５図は従来の原稿自動給送
機構の構成図である。Ａ……分離搬送部、Ｂ……読み取り搬送ローラ
部、Ｃ……伝達遅れ機構、６……読み取り搬送ロ
ーラ、９……原稿積載トレイ、１１……分離ロー
ラ、１２……駆動シヤフト、１９ｃ……ワンウエ
イクラツチ、２１……ギヤ、２１ａ……溝、２２
……フランジ、２２ａ……ピン。 Fig. 1 is a block diagram of the automatic document feeding mechanism according to the present invention, Fig. 2 is a block diagram of the drive transmission mechanism of the same mechanism, Fig. 3 is a sectional view taken along the line - - of Fig. 2, and Fig. 4 is a block diagram of the automatic document feeding mechanism of the present invention. FIG. 5, which is a sectional view taken along the line - in the figure, is a configuration diagram of a conventional automatic document feeding mechanism. A...Separation conveyance section, B...Reading conveyance roller section, C...Transmission delay mechanism, 6...Reading conveyance roller, 9...Document loading tray, 11...Separation roller, 12...Drive shaft, 19c... ...One-way clutch, 21...Gear, 21a...Groove, 22
...Flange, 22a...Pin.

Claims

[Scope of claim for utility model registration] (1) A separation conveyance unit that separates and conveys the originals stacked on the document stacking tray page by page, and feeds the originals sent from the separation conveyance unit to a reading position. In an automatic document feeding mechanism of a document reading device, which includes a reading conveyance roller section for discharging the document after reading has been completed, and a drive means and a drive transmission mechanism for driving these separation conveyance section and the reading conveyance roller section. An automatic document feeding mechanism of a document reading device, wherein the separation roller constituting the separation conveyance section is configured to be rotationally driven by the drive transmission mechanism via a continuation means and a transmission delay mechanism. (2) The transmission delay mechanism connects a flange to a drive shaft that supports the separation roller, and inserts a pin protruding from the flange into an arcuate groove formed in a gear loosely fitted to the drive shaft. An automatic document feeding mechanism of a document reading device according to claim 1, characterized in that the mechanism is configured to be engaged with each other. (3) The document reading device according to claim 1, wherein the document feeding speed of the separating roller is set higher than that of the reading and conveying rollers constituting the reading and conveying roller section. automatic document feeding mechanism. (4) The document reading device according to claim 1, wherein the driving means is constituted by a motor and serves as a common driving source for the separation conveyance section and the reading conveyance roller section. Automatic feeding mechanism. (5) The continuing means and the transmission delay mechanism interrupt the power transmission to the separation conveyance section after the document being read passes through the separation conveyance section, and transmit the power to the separation conveyance section until the document being read is completely conveyed. An automatic document feeding mechanism of a document reading device according to claim 1, characterized in that the device does not start feeding the document.