JPS6025055Y2 - Paper output tray of copying machines, etc. - Google Patents

Description

[Detailed explanation of the idea] TECHNICAL FIELD The present invention relates to improvement of the paper ejection tray of electrophotographic copying machines and the like.

2. Description of the Related Art Conventionally, an example of a paper discharge tray for receiving copy sheets (discharged sheets) after a copying process in an electronic copying machine is shown in FIG.

Below a paper ejection port 2 provided in the copying machine main body 1, there is a paper ejection tray having a bottom plate 3 that descends downward as it approaches the tip.

A guide rail 5 is attached to this bottom plate, and this rail 5
The stopper 4 is held in place by its own elasticity.

If the stopper 4 is set at an appropriate position according to the paper size and receives a plurality of sheets of paper, disturbances in the direction along the rail 5 will be reduced.

However, since the stopper 4 is stopped only by elastic friction in the direction of paper discharge movement, it moves little by little when the paper comes into contact with it.

Therefore, as the paper is moved many times, it deviates from its initial proper position, and when a plurality of copies are made, a group of ejected papers are piled up with their leading edges irregular.

For this reason, it becomes necessary to sample and align the copies, or the tips that protrude during movement tend to break.

The present invention has been made to improve the above-mentioned drawbacks, and an object of the present invention is to provide a paper discharge tray that can be easily set according to each copy size and has a stopper that does not shift its position.

The present invention will be explained below based on an embodiment shown in FIGS. 2 to 4.

FIG. 2 is a perspective view showing the entire paper output tray according to an embodiment of the present invention, in which 3a is a bottom plate, 7 is a stopper support, and 8 is a bottom plate.
a and 8b are L-shaped stoppers.

3 and 4 are partially enlarged views of the embodiment shown in FIG. 2 to make it easier to understand, and FIG. 4 shows a state in which the stopper is set.

In the figure, 9 is a stopper locking piece (over-rotation prevention member), and 10 is a main part of the stopper that is perpendicular to this locking piece 9.

A shaft 11 for rotating the stopper is attached to the locking piece 9, and this shaft 11 engages with a notch hole 12 (bearing) of the support 7.

The main portion 10 also has a finger hook 13 on the opposite side of the locking piece 9, and the user's finger is placed on the finger hook 13 to pull up the stopper 8a from the state shown in FIG. 3 to the state shown in FIG.

An arrow 14 in FIG. 4 indicates the direction in which the discharged paper moves, and a force in the direction of the arrow 14 is exerted when the paper hits the main portion 10.

The stopper 8a resists this force and is held by the locking piece 9, the shaft 11, and the notch hole 12.

Here, the finger hook part 13 is not a notch, but a bent piece that does not protrude above the support 7 when not set in the main part 10.
You can also attach it to

FIG. 5 is an enlarged view showing the stopper set in another embodiment.

A stopper locking piece 29 is attached to the stopper main portion 20 and also serves as a finger hook.

A shaft 21 is attached to both ends of the joint between the main portion 20 and the locking piece 29, and a bearing 22 formed by a notch hole in the stopper support 27
is combined with

The locking piece 29 and the shaft 21 support the impact when the paper moves in the direction of the arrow 24 and hits the main portion 20.

Further, an arcuate arrow 23 indicates the direction in which the stopper moves when being reset.

As described above, according to the present invention, it is possible to obtain a paper ejection tray that is easy to set and has a stopper that does not move from a position determined by the size of copy paper.

If a stopper is installed in advance at the optimum position for the copy paper size and you set it, the stopper will not move and all the copy papers will be stopped at the optimum position on the tray, allowing multiple copies to be placed on the output tray at the same time. An orderly and undisturbed discharge service can be obtained if one is accepted.

Therefore, there is an advantage that the edges of the paper are not damaged when taking out the paper from the paper discharge tray or otherwise moving the paper.

[Brief explanation of drawings]

Figure 1 is a perspective view showing a conventional paper output tray of a copying machine;
The figure is a perspective view showing one embodiment of the present invention, FIG. 3 is an enlarged view of the stopper area in the embodiment shown in FIG. 2, and FIG.
This figure is a perspective view showing the stopper shown in FIG. 3 in a set state, and FIG. 5 is a perspective view showing the vicinity of the stopper in another embodiment. 3, 3at 3b...Tray bottom plate, 7,27.
...Stopper support, 8a, 8b...
Stopper, 9.29... Stopper locking piece, 10
, 20...Stopper main part, 11...Shaft, 12.22...Bearing notch hole (bearing).

Claims (1)

[Scope of utility model registration request] It has a stopper main part that is rotatably attached to the tray body in advance at the optimal position according to the size of the copy paper, and is provided in a lying or upright state, and this stopper main part has a stop function for paper ejection. A paper discharge tray for a famous copying machine, characterized in that it is provided with an excessive rotation prevention mechanism that prevents the paper from rotating in the direction in which paper is discharged to the tray in an upright state.