JPH0175041U

JPH0175041U -

Info

Publication number: JPH0175041U
Application number: JP1987171057U
Authority: JP
Priority date: 1987-11-09
Filing date: 1987-11-09
Publication date: 1989-05-22

Description

[Brief explanation of the drawing]

第１図から第５図は本考案の実施例を示す図で
、第１図は給紙装置の主要部を示す縦断面図で加
圧状態を示し、第２図は加圧機構を示す縦断面図
で加圧解除状態を示し、第３図はカセツトの斜視
図、第４図は第３図の―線断面図、第５図は
加圧機構の斜視図であり、第６図ａは従来型給紙
装置の加圧機構を示す図式図、第６図ｂはそのカ
ム形状を示す斜視図である。１……カセツト、３……積載板、９……加圧ア
ーム（加圧板）、１０……加圧レバー（加圧部材
）、１１……加圧軸（加圧部材支持軸）、１４…
…保持アーム（保持部材）、１４ａ……切欠き部
、２２……アンカー（加圧される突起）、２３…
…ストツパーピン（切欠き部と係合する突起）、
２６……加圧解除アーム（加圧解除部材）、２７
……ストツパー（突起）、３０ｂ……逃げ穴（開
口部）、３１……ピン（加圧解除用突起）、３２
……突起（加圧用突起）。 Figures 1 to 5 are diagrams showing an embodiment of the present invention. Figure 1 is a vertical cross-sectional view showing the main parts of the paper feeder in a pressurized state, and Figure 2 is a vertical cross-sectional view showing the pressurizing mechanism. 3 is a perspective view of the cassette, FIG. 4 is a sectional view taken along the line -- in FIG. 3, FIG. 5 is a perspective view of the pressurizing mechanism, and FIG. FIG. 6B is a schematic diagram showing a pressurizing mechanism of a conventional paper feeding device, and FIG. 6B is a perspective view showing its cam shape. DESCRIPTION OF SYMBOLS 1... Cassette, 3... Loading plate, 9... Pressure arm (pressure plate), 10... Pressure lever (pressure member), 11... Pressure shaft (pressure member support shaft), 14...
...Holding arm (holding member), 14a... Notch, 22... Anchor (protrusion that is pressurized), 23...
...stopper pin (protrusion that engages with the notch),
26... Pressure release arm (pressure release member), 27
...Stopper (protrusion), 30b...Escape hole (opening), 31...Pin (protrusion for releasing pressure), 32
...Protrusion (pressure protrusion).

Claims

[Claims for Utility Model Registration] A paper stacking plate mounted so as to be swingable with one end as a fulcrum, and a pressure and positioning protrusion on the bottom;
A paper feed cassette having a pressure release projection and an opening for a pressure plate on a side outer shape; a retaining member that is tensioned and whose bent portion is pivotably supported; and a protrusion that engages with the notch on one end side;
a pressure member having an elastically tensioned other end, a rotatably pivoted intermediate portion, and a protrusion that is elastically pressed between the intermediate portion and the one end; a pressure plate that is engaged with the member support shaft and whose other end abuts against the sheet stacking plate of the cassette and presses the stacking plate upward; and whose one end is engaged with a protrusion that is elastically pressed by the pressure member. a pressurizing release member having a protrusion to be fitted, pivotally supported at the middle portion, and formed at the other end so that the pressurizing releasing protrusion of the cassette contacts and releases the pressurization when the cassette is removed; A paper feeding device characterized in that the paper loading plate of the cassette is not pressurized when the cassette is attached, is pressurized after the cassette is attached, and the pressure is released when the cassette is removed.