JP2500750B2 - Paper cassette - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper cassette of a printer, and more particularly to a paper cassette of a claw separation system.

[0002]

2. Description of the Related Art Generally, a claw separation type paper cassette is
For example, as shown in FIG. 5, a cassette body 10 having an open upper surface, a pair of separation claws 11 arranged on one end side of the cassette body 10, that is, on the paper feed direction side, and arranged inside the cassette body 10. The upper surface of the soft plate 12 is a sheet stacking surface.

The end of the soft plate 12 on the side opposite to the sheet feeding direction is supported by the cassette body 10 by a pin 13, and the other end is swingably provided as a free end. A spring (not shown) is interposed between the soft plate 12 and the cassette body 10, and the free end side of the soft plate 12 is normally urged toward the separating claw 11.

[0004] sheet is stacked on the soft plate 12 is fed to <br/> printer one by one by a pickup roller (not shown in the figure), the case of performing the copying or printing or the like using a special copy media Considering this, a method of providing a manual feed mechanism has been conventionally adopted. Although this manual feed mechanism has a structure provided in a printer device,
In such a structure, there is an inconvenience that the device cost is increased. Therefore, there has been proposed an attempt to eliminate this inconvenience by applying a manual feed mechanism to the paper cassette.

As a conventional example in which the manual feed mechanism is applied to a paper cassette of a claw separation type, the configuration shown in FIGS. 6 and 7 is known (for example, Japanese Utility Model Laid-Open No. 60-195840). This one has a lid plate 15 mounted on the upper portion of the cassette body 10, and a guide plate 17 supported by the cassette body 10 via pins 16 at a position continuous with the lid plate 15.

The lid plate 15 is slidable with respect to the cassette body 10. The paper P on the soft plate 12 can be fed at the position shown in FIG. In the state of being slid in the direction of the arrow shown in FIG. 7, the lid plate 15
The copy or print medium P1 placed on the guide plate 17, for example, thick paper or cloth transfer sheet can be supplied to the printer side. At this time, the guide plate 17 has a step portion 17A formed on the lid plate 15 side, and the lid plate 15 with respect to the step portion 17A is formed.
It is rotatable by changing the engagement position of the end portion 15A. Incidentally, in FIG. 6 and FIG. 7, reference numeral 19
Shows a spring for urging the soft plate 12 toward the separating claw 11.

According to the manual feed mechanism in the claw separation type paper cassette, the above-mentioned copy medium P1 is smoothly supplied without being caught by the separation claw 11 during manual feeding.

[0008]

However, in the conventional structure in which the manual feed mechanism is provided in the paper cassette, the guide plate 17 and the pin 16 for rotating the guide plate 17 need to be provided, and the lid plate 15 is provided. Since a mechanism for sliding the must also be provided, the structure becomes complicated and the cost is increased, which is a disadvantage. In addition, the lid plate 15 and the guide plate 17 hinder the setting of the sheet P for automatic sheet feeding in the sheet cassette, which makes it difficult to set.

[0009]

It is an object of the present invention to improve the disadvantages of the prior art, and in particular, to provide a special copying medium such as a cardboard or a cloth transfer sheet with a simple structure without providing a manual feeding mechanism on the printer side. It is an object of the present invention to provide a paper cassette that can be supplied sheet by sheet and that can also supply paper to the paper cassette very easily.

[0010]

SUMMARY OF THE INVENTION The present invention relates to a paper cassette having a cassette main body having a separating claw at one end side and a soft plate arranged in the cassette main body and having an upper surface serving as a paper stacking surface. , Shape to cover the separation claw
The manual guide plate equipped with
It is attached to the surface of the chair directly and detachably.

The manual guide plate and soft
And the manual guide plate
And a pair of protrusions and correspondingly provided on the soft plate
With a pair of holes that are
The configuration is such that it is provided closer to the separation claw than the rear end of the shift plate . This is intended to achieve the above-mentioned object.

[0012]

EXAMPLE A sheet cassette according to the present invention will be described below.
The embodiment will be described with reference to the drawings. In the following description, the same reference numerals will be used for the same or equivalent components as those of the conventional example,
The description is omitted or simplified.

FIG. 1 is an exploded perspective view of a part of the paper cassette in this embodiment. In this drawing, the soft plate 12 is attached to the pin 1 of the cassette body 10.
It is swingably attached via 3. The soft plate 12 is, as shown in FIG.
It is pushed up by a spring 19 provided between and and is always urged toward the separation claw 11. This
The side of the separation plate 11 of the soft plate 12 is the soft plate 12
When the tip of the pin is on the back and the pin 13 side is on the back,
On the surface of the girder 12 from the rear end to a position slightly closer to the front end
A pair of elongated holes 25 are provided.

A plate-shaped manual guide plate 24 is mounted on the upper surface side of the soft plate 12, and a pair of protrusions 26 are provided at the ends of the manual guide plate 24 so as to face downward. ing. These protrusions 26 are the long holes 2 formed in the soft plate 12.
5 are inserted into each other so that they can be engaged with each other. Here, the protrusion 26 and the elongated hole 25 constitute an engaging means.

FIG. 2 shows a manual guide plate 24.
Is shown directly attached to the surface along the soft plate 12, and in this attached state, the manual guide plate 24 is provided in a shape covering the upper surface side of the separation claw 11. There is. Where the manual guide play
From the separation claws 11 to the pair of holes 25 described above.
It is only necessary to cover
Al guide plate 24 smaller than soft plate 12
Can be formed easily, and the material cost associated with this can be reduced.
It is possible to improve the economical efficiency.
ing.

FIG. 3 shows a manual guide plate 24.
In this state, the soft plate 12 presses the sheet P against the pick roller 30 by the spring 19, and the pick roller 30 rotates in the direction of the arrow in the figure. The paper is fed one by one. That is, the top sheet P set in the sheet cassette is caught by the separation claw 11 and bent to some extent, but eventually the separation claw 11 is loaded and supplied to the inside of the printer (not shown).

FIG. 4 shows a state in which the manual guide plate 24 is mounted. The elongated hole 25 of the soft plate 12 is engaged with the protrusion 26 of the manual guide plate 24, and at this time, the manual guide plate 24 covers the separation claw 11 . The spring 19 pushes up the soft plate 12, and the force is transmitted to the separation claw 11 and the manual guide plate 24, and the manual guide plate 24 presses the cloth transfer sheet P1 that cannot be automatically fed to the pick roller 30.

When the paper cassette is mounted in the printer device in the above state, when the pick roller 30 rotates in the direction of the arrow, the cloth transfer sheet P1 is smoothly fed into the printer device without being caught by the separating claw 11. The Rukoto.

In the above embodiment, the manual
Guide plate 24 is engaged with soft plate 12
The mode has been illustrated and explained, but manual guide play
The door 24 also adopts a configuration that engages with the cassette body 10.
be able to.

[0020]

Since the present invention is constructed and operates as described above, it is not necessary to provide a manual feed mechanism on the printer side, and the separation claw is covered.
The hiding manual guide plate has been downsized,
Due to the strike and simple structure ,
Various copying media including recording paper , such as cardboard and cloth transfer sheet, can be manually supplied one by one, and paper can be replenished to a paper cassette very easily. It is possible to provide a paper cassette having excellent effects.

[Brief description of drawings]

FIG. 1 is a partially exploded perspective view of an embodiment of a paper cassette according to the present invention.

FIG. 2 is a perspective view showing an assembled state of the paper cassette shown in FIG.

FIG. 3 is a cross-sectional view of an automatic paper feed state showing a state in which a manual guide plate is removed from the paper cassette.

FIG. 4 is a cross-sectional view of a manual feed state using the paper cassette.

FIG. 5 is a perspective view of a general paper cassette.

FIG. 6 is a cross-sectional view showing an automatic paper feed state in a conventional paper cassette having a manual feed mechanism.

7 is a cross-sectional view showing a manual insertion state of the paper cassette shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cassette body 11 Separation claw 12 Soft plate 24 Manual guide plate 25 Long hole which constitutes engaging means 26 Protrusion which constitutes engaging means

Claims (1)

(57) [Claims] 1. A sheet cassette having a cassette main body having a separation claw at one end side and a soft plate arranged in the cassette main body and having an upper surface serving as a sheet stacking surface, a shape covering the separation claw. Manual guide play with
Directly on the surface along the soft plate.
Removably installed, the manual guide plate and the soft plate
A pair of the manual guide plate
Protrusions and correspondingly provided on the soft plate
And a pair of holes that are engaged with each other.
A paper cassette characterized in that it is provided near the claws.