JPH01156144U

JPH01156144U -

Info

Publication number: JPH01156144U
Application number: JP5323788U
Authority: JP
Priority date: 1988-04-20
Filing date: 1988-04-20
Publication date: 1989-10-26

Description

[Brief explanation of drawings]

第１図はこの考案に係る自動給紙装置の一実施
例を示す断面図、第２図は同実施例の要部斜視図
、第３図はバネ圧調整手段の操作つまみを示した
斜視図、第４図は同操作つまみの横断面図、第５
図はパツド圧調整手段を示した構造図である。図中、１は給紙ローラ、２は分離パツド、３は
用紙分離手段、４は初期搬送バネ、５はコイル部
、６はボス、７はパネル、８はバネ圧調整手段、
１０ａ，１０ｂは溝、１２はパツド圧調整手段、
１３は操作つまみ、１３ａは突起、１４はスペー
サ、１４ａ，１４ｂは係合溝、１６はコイルバネ
である。 Fig. 1 is a cross-sectional view showing an embodiment of an automatic paper feeder according to this invention, Fig. 2 is a perspective view of the main parts of the same embodiment, and Fig. 3 is a perspective view showing the operating knob of the spring pressure adjusting means. , Figure 4 is a cross-sectional view of the same operation knob, Figure 5 is a cross-sectional view of the same operation knob,
The figure is a structural diagram showing the pad pressure adjusting means. In the figure, 1 is a paper feed roller, 2 is a separation pad, 3 is a paper separation means, 4 is an initial conveyance spring, 5 is a coil section, 6 is a boss, 7 is a panel, 8 is a spring pressure adjustment means,
10a and 10b are grooves, 12 is pad pressure adjustment means,
13 is an operation knob, 13a is a projection, 14 is a spacer, 14a, 14b are engagement grooves, and 16 is a coil spring.

Claims

[Claims for Utility Model Registration] (1) A paper feed roller, a paper separation means having a separation pad that is pressed against the paper feed roller with a predetermined spring force, and a paper separation means that has a separation pad that is pressed against the paper feed roller with a predetermined spring force; An automatic paper feeder that has an initial conveyance spring on the front side that pushes the paper set on the paper feed roller toward the roller, and feeds multiple sheets of paper one by one to a document reading unit, etc. In the above, the initial conveyance spring is a torsion spring whose substantially central coil portion is pivoted to a predetermined part of the equipment housing, and whose one end is set as the paper pressing side. A spring pressure adjusting means is provided for adjusting the paper pressing force on one end side by acting on the end, and the paper pressing force of the initial conveyance spring can be adjusted from outside the device housing by the spring pressure adjusting means. An automatic paper feeder characterized by: (2) The spring pressure adjustment means has an operating knob slidably attached to the device housing, and the operating knob has a plurality of grooves of different depths that engage with the other end of the torsion spring. 2. The automatic paper feeder according to claim 1, further comprising: (3) The other end of the torsion spring is formed in a portal shape, and the connecting portion thereof is provided with a substantially U-shaped protrusion that fits into the groove. automatic paper feeder.