JPH0346936A - Paper feed device from cassette - Google Patents

Abstract

PURPOSE:To feed paper by providing the cassettes whose maximum paper accommodation capacities are larger and smaller at one cassette insert part so that they can be exchanged and inserted freely to make plural types of cassettes, in which the respective maximum paper accommodation capacities of the same size are different from one another, inserted into the same cassette insert part. CONSTITUTION:There is provided a cassette insert part provided with the supporting rails 3, 4 on both the side walls. A cassette 5 whose maximum paper accommodation capacity is smaller is changed to a cassette 6 whose maximum paper accommodation capacity is larger to insert it into the one cassette insert part, and paper P is taken out of the cassettes 5, 6 by a press-up means 7 and a delivery means 8.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a paper feeding device from a cassette used in a copying machine, etc., and more specifically, the present invention relates to a paper feeding device from a cassette used in a copying machine, etc. , a pushing means for pushing up the paper placement plate of the cassette inserted into the insertion section; and a pushing means that contacts the topmost paper on the paper placement board pushed up by the pushing up means at a fixed position to send out the topmost paper. The present invention relates to a paper feeding device including a feeding means.

[Conventional technology]

In the conventional paper feeding device as described above, a cassette whose width is wider than the width between the support rails and the entire width rests on the support rails is inserted into the cassette insertion section, and paper of the same size is inserted into the cassette insertion section. Even for cassettes to be accommodated, different maximum accommodating capacities, ie, cassettes of different heights, require different cassette insertion sections in which the height between the delivery means and the support rail varies depending on the cassette height.

[Problem to be solved by the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a paper feeding device that can feed paper by inserting a plurality of types of cassettes having different maximum storage capacities of the same size paper into the same cassette insertion section.

[Means to solve the problem]

The present invention provides a cassette insertion section having cassette support rails on both side walls, a pushing means for pushing up a paper mounting plate of a cassette inserted into the insertion section, and a push-up means for pushing up a paper mounting plate of a cassette inserted into the insertion section; A cassette that accommodates a paper having a width narrower than the width between the support rails in the cassette insertion portion in a paper feeding device comprising a feeding unit that feeds out the top paper by contacting the top paper at a fixed position. A cassette that rests entirely on the support rail, an upper part that also rests on the support rail, and a lower part that accommodates the paper and hangs between the support rails are integrally connected. The present invention provides a paper feeding device from a cassette, which is characterized in that it can be inserted interchangeably with a cassette of a different shape, and with this configuration, the above object is achieved.

[Effect]

That is, in the paper feeding device of the present invention, since the cassette is a cassette that accommodates paper with a width narrower than the width between the support rails in one cassette insertion portion, and the outer width is wider than the width between the support rails, The whole part of the cassette rests on the support rails, and the bottom of the part that also rests on the support rails has an outer width that is narrower than the width between the support rails so that it hangs between the support rails. It is possible to insert the paper cassette interchangeably with a cassette in which the paper accommodating parts are integrally connected, and paper can be sent out from either cassette. Since the height of the lower part of the latter cassette, which has a narrow outer width, can be changed appropriately, the types of cassettes that can be replaced and inserted into one cassette insertion section in the paper feeding device of the present invention are determined based on the maximum paper capacity. Then, there may be two or more types.

〔Example〕

The present invention will be explained below using illustrated examples.

In Figures 1 and 2, the outer width of the cassette insertion section is -
FIG. 3 is a cross-sectional view of the paper feeding device of the present invention in which a cassette of various types and a cassette whose outer width is narrower at the bottom than at the top are inserted.

In the figure, 1.2 is the side wall of the cassette insertion part, 3.4 is the support rail provided on the side wall 1.2, and 5 and 6 are the support rails 3.
, 4, the outer width-like cassette is entirely resting on the support rail 3.4, and the upper part is resting on the support rail 3.4, and the lower part is is suspended between the support rails 3 and 4, an outer width changing cassette, 5a.

Reference numeral 6a denotes a paper mounting plate for the cassettes 5 and 6; 7, a pinion 7a moves a rack 7b to raise and lower a push-up lever 7c having a rack 7b; the upper end of the push-up lever 7c raises and lowers the paper mounting plates 5a and 6a; Means 8 is a paper mounting plate 5a which is rotated in a fixed position and pushed up by the pushing up means 7.

This is a feeding means that contacts the topmost paper P on 6a and sends out the paper P by frictional force.

As shown in FIGS. 1 and 2, according to the paper feeding device of the present invention, a cassette 5 with a small maximum paper capacity and a cassette 6 with a larger maximum paper capacity in one cassette insertion section.
By replacing and inserting the cassettes 5 and 5, the paper P can be sent out from the cassettes 5 and 6 by the pushing up means 7 and the sending out means 8.

The paper feeding device of the present invention is not limited to the illustrated example; the pushing up means may use, for example, a rotating arm or a plunger, or the feeding means may use a portable and movable suction head.

〔Effect of the invention〕

In the paper feeding device of the present invention, a cassette with a small maximum paper capacity and a cassette with a large maximum paper capacity can be inserted interchangeably into one cassette insertion section, and paper can be sent out from these cassettes. This provides the advantage that it is not necessary to provide a cassette insertion section.

[Brief explanation of the drawings] In Figures 1 and 2, the outer width of the cassette insertion section is -
FIG. 3 is a cross-sectional view of the paper feeding device of the present invention in which a cassette of various types and a cassette whose outer width is narrower at the bottom than at the top are inserted. 1.2...Cassette insertion part side wall 3.4...Support rail 5...Outer width-like cassette 6...Outer width change force 5a, 6a...Paper mounting plate 7... Pushing up means P... Paper

Claims (1)

[Claims] A cassette insertion section having cassette support rails on both side walls, a pushing means for pushing up a paper placement plate of a cassette inserted into the insertion section, and the topmost paper on the paper placement plate pushed up by the pushing up means. and a feeding device that feeds out the uppermost paper by contacting the cassette at a fixed position, the cassette accommodating a paper having a width narrower than the width between the support rails in the cassette insertion part, A cassette in which the entire cassette rests on the support rail, and the upper part, which also rests on the support rail, and the lower part, which accommodates paper and hangs between the support rails, are connected together. A paper feeding device from a cassette, characterized in that it can be inserted interchangeably with the cassette.