JPS5851154Y2 - Cassette mechanism in visual camera - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cassette mechanism that can be pressed in a copying machine, and in particular to a cassette for storing a plurality of sheets of copy paper in a stacked state, and a cassette mechanism that is capable of swinging within the cassette and that is at least A swinging bottom plate is provided that is biased upward during paper feeding, and the cassette is mounted on a paper feeding roller provided in the main body of the copying machine and a cassette receiving portion corresponding to the paper feeding roller, and The present invention relates to a cassette mechanism in a copying machine that rotates to feed out sheets of copy paper stored in a cassette one by one.

Conventionally, when a cassette containing a plurality of sheets of copy paper is loaded into the cassette holder of the main body of a copying machine, the swinging bottom plate provided inside the cassette is biased upward. Because it is installed in the receiving section, the topmost paper in the cassette may be shifted in the opposite direction to the loading direction (paper feeding direction) by the paper feed roller located above the cassette, or it may become wrinkled or wrinkled. The purpose of this invention is to install a cassette in a copying machine without shifting the copy paper stored in the cassette, especially the topmost paper, when the cassette is installed in the machine. In order to eliminate the above-mentioned conventional drawbacks and achieve the above-mentioned object, the present invention provides a cassette mechanism in which a swinging bottom plate provided in a cassette holds the swinging bottom plate when placed in a predetermined position. The apparatus is characterized in that it is provided with a holding means for holding the cassette in the copying machine main body, and a releasing means for releasing the holding state of the swinging bottom plate when the cassette is mounted on the main body of the copying machine.

Hereinafter, the present invention will be explained based on an embodiment shown in the drawings.

In a box-shaped cassette 2 for storing a plurality of sheets of copy paper 1 in a stacked state as shown in FIGS. A swinging bottom plate 4 is provided in front of the cassette bottom plate 3, and the swinging bottom plate 4 has a bent piece 4a formed at one end thereof, and is inserted into a long hole 5 bored at a predetermined position in the cassette bottom plate 3. It is locked in the locked state, and is provided to be swingable about the locking part as a fulcrum.

Further, a biasing member for biasing the top of the swinging bottom plate 4 upward;
For example, a spring 6 is provided between the cassette bottom plate 3 and the swinging bottom plate 4.

Furthermore, a separating claw member 8.9 is fixedly provided at the inner corner of the paper feeding side of the cassette 2 to prevent the feeding of two copies of copy paper.

Furthermore, the upper surface of the cassette 2 is a part where the cassette 2 is inserted into the copying machine main body 10, and a cover that is opened at a part corresponding to the paper feed roller 11 attached at a predetermined position of the copying machine main body 10. An integral part 12 is provided and is detachable from the cassette 2 so that it can be removed when loading copy paper.

In the present invention, when the swinging bottom plate 4 provided in the cassette 2 is pushed to a predetermined downward position against the spring 6, a holding mechanism is provided to hold the swinging bottom plate 4 in that position. Means 13 (FIGS. 2 and 3) are provided.

For example, a locking member 15 made of a material such as synthetic resin and having a hook 14 at the tip is attached to the back surface of the swinging bottom plate 4 via an elastic device 23 such as a leaf spring. At a position corresponding to the mounting position, a holding hole 16 is bored in the bottom plate 3 of the cassette 2 to fit the hook 14 of the locking member 15 and to lock and hold the locking member 15.

Therefore, when the swinging bottom plate 4 is pushed against the elasticity of the spring 6, the hook 14 comes into contact with the holding hole 16, and at this time, the locking member 15 swings against the elastic force 23. The hook piece 14 is then inserted into the holding hole 16 so that the hook piece 14 is engaged with one side of the holding hole 16, and the swinging bottom plate 4 is held in this engaged state (see FIG. 4).

When loading a sheet of copy paper into the cassette 2, in the state in which the swing bottom plate 4 is held, unlike the conventional method in which copy paper is loaded while pushing the swing bottom plate 4 downward, the swing bottom plate 4 is once held in the holding state, and then the copy paper is loaded, making it possible to load the sheet copy paper easily and reliably. In addition, in the present invention, the cassette receiving portion 17 provided in the copying machine main body 10 is A release means 18 is attached for releasing the holding means 13 when the cassette 2 is installed.

That is, the cassette holder 17 is provided with a cassette holding plate 19 that pushes the hook 14 of the locking member 15 to release the engagement between the hook 14 of the locking member 15 and the holding hole 16. 19 is located at a position where it comes into contact with the hook piece 14 protruding from the bottom plate 3 of the cassette 2, and also comes into contact with the hook piece 14 at the same time as the cassette 2 is installed in the paper feeding position,
The holding means 13 is released.

Therefore, as shown in FIG.
9 is concave, the concave portion is a contact portion 20, and the corresponding contact portion 2
0, when the cassette 2 is installed in the paper feeding position, it comes into contact with the hook 14 and releases the locking of the locking member 15.

Incidentally, the cassette holding plate 19 of the cassette receiving part 17 in the above-described release means 18 is not specified to have a concave shape;
The holding means 13 and the release means 18 are mounted not only on the bottom plate 3 of the cassette 2 and the cassette holding plate 19 of the cassette receiving part 17, but also on the side parts of the cassette 2 and the corresponding cassette receiving part 17. It will be obvious to those skilled in the art that this is also possible by mounting or the like.

Further, as shown in the figure, a bent piece 21 is formed at the tip of the cassette holding plate 19 to define the mounting position of the cassette, and the cassette receiving portion 17 has a bending piece 21 for guiding the mounting of the cassette 2. A guide member 22 is provided.

Thus, as shown in FIGS. 5 to 8, the cassette 2
When the cassette 2 is inserted while being guided by the holding plate 19 and the guide member 22 of the cassette receiving part 17, when the cassette 2 is inserted into the position where it abuts the folded piece 21, that is, the paper feeding position, the cassette holding plate 19 The contact portion 20 contacts the hook piece 14 of the locking member 15, the hook piece 14 separates from one edge of the holding hole 16 of the bottom plate 3 of the cassette 2, and the holding state of the holding means 13 is released. The swinging bottom plate 4 is pushed up by the elastic force of the spring 6.

Therefore, the uppermost surface of the sheet-like copy paper 1 stacked and stored on the swinging bottom plate 4 comes into contact with the paper feed roller 11 and the separating claw members 8 and 9 of the cassette 2.

Therefore, the sheet copy paper 1 stored in the cassette 2 is fed one by one by the paper feed rotation of the paper feed roller 11.

Therefore, in the present invention, when the swinging bottom plate provided in the cassette is placed in a predetermined position, the swinging bottom plate can be held in a predetermined position by the holding means that holds the swinging bottom plate. When loading copy paper, it is possible to reliably maintain the alignment state and easily load the copy paper.Furthermore, since it is installed in the cassette holder of the copying machine main body while the swinging bottom plate is held, there is no space inside the cassette. The cassette is installed into the main body with the topmost sheet of stored copy paper not in contact with the paper feed roller provided in the cassette holder of the main body, so it is not stored in the cassette when the cassette is installed. This method does not cause the uppermost paper of the sheet-like copy paper to be shifted or wrinkled, and when the cassette is installed in a predetermined position (paper feeding position), the holding means in the holding state is released by the releasing means, and the holding state is returned to the paper feeding state. Because it is possible to
The cassette can be installed easily and reliably.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of a copying machine equipped with the cassette mechanism of the present invention, FIG. 2 is a partial perspective view from below of FIG. 1, and FIG.
The figure is a partially cutaway perspective view showing the holding means of the present invention, FIG. 4 is a partially cutaway perspective view showing the holding means in the locking position,
Fig. 5 is a sectional view to explain the state in which the cassette is installed in the copying machine main body, Fig. 6 is a sectional view showing the state when the cassette is installed in the paper feeding position of the copying machine main body, and Fig. 7 is a sectional view to explain the state in which the cassette is installed in the copying machine main body. FIG. 5 is a perspective view from below, and FIG. 8 is a perspective view from below of FIG. 1...Copy paper, 2...Cassette, 4.
... Swinging bottom plate, 10 ... Copying machine main body, 1
DESCRIPTION OF SYMBOLS 1... Paper feed roller, 17... Cassette receiver, 13... Holding means, 18... Release means.

Claims (1)

[Scope of utility model registration request] A cassette for storing a plurality of sheets of copying machine in a piled state, and a swinging bottom plate that is swingable in the cassette and is biased upward at least when feeding paper, and the swinging bottom plate is provided in the main body of the copying machine. The cassette is mounted on a paper feed roller and a cassette receiver corresponding to the paper feed roller, and the sheet-like copy paper stored in the cassette is fed out one by one by rotation of the paper feed roller. In the paper feed mechanism,
Holding means for holding the swinging bottom plate provided in the cassette when the swinging bottom plate is placed in a predetermined position; and releasing means for releasing the holding state of the swinging bottom plate when the cassette is installed in the copying machine main body. A cassette mechanism in a copying machine, characterized in that it is provided with.