JPH0543115A - Printer - Google Patents

Abstract

PURPOSE:To prevent a paper sheet presser from being a hindrance in the case of using it usually, and make a paper sheet hard to be dropped in the case of releasing an upper cage body by providing both the paper sheet presser movable in an upward movement regulating position of the already printed paper sheet and in its release position and a release lever to make the upper cage body releasable so as to move the paper sheet presser in the regulating position. CONSTITUTION:A release lever 3 is moved in the direction of a paper sheet presser 2, and a lock lever 5 is rotated clockwise with a fulcrum 8 as its center, and is released from a fixing pin 7, and when an upper cage body 1 is put under an open condition to a lower cage body 11, and when a load applied to the release lever 3 is removed, the lock lever 5 is pulled by a lock spring 6, and is rotated counterclockwise. Then, the upper cage body 1 is released simultaneously, and the release lever 3 is separated from the paper sheet presser 2, and the paper sheet presser 2 moves in an upward movement regulating position of an already printed paper sheet by means of spring force of a torsion spring. To the contrary, when the upper cage body 1 is pushed downward and is put under a close condition, the release lever 3 is moved, so that the paper sheet presser 2 is returned in a regulation release position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer having a discharge tray for stacking printed sheets on the upper surface of an openable upper casing.

[0002]

2. Description of the Related Art Conventionally, a printer of this type has been miniaturized by providing a discharge tray on which printed sheets are stacked on the upper surface of an upper casing rotatably supported by a lower casing. was there. In this printer, when the upper housing is opened for paper jam processing, the paper on the paper discharge tray is removed.

[0003]

However, in the above printer, if the lock mechanism is released and the upper housing is opened while the printed sheets are stacked on the sheet ejection tray, the sheet ejection tray will be opened. There is a problem that the printed paper falls down due to tilting. Further, it may be possible to provide a paper retainer that regulates the upper side of the paper in order to prevent the paper from falling, but this becomes an obstacle when ejecting the paper and taking out the paper.

The present invention has been made in order to solve the above-mentioned problems, and provides a printer in which the paper does not easily drop even if the upper housing is opened while the paper is mounted on the paper discharge tray. With the goal.

[0005]

In order to achieve this object, a printer of the present invention comprises a lower housing, an upper housing rotatably supported by the lower housing, and an upper housing serving as a lower housing. A lock mechanism that keeps it closed to the body, a paper ejection tray that is provided on the upper surface of the upper housing and on which printed paper is stacked, and an end of the paper ejection tray that is above the printed paper. Sheet presser that can be moved between a regulation position that regulates the movement of the sheet to the control position and a release position that releases the regulation, and the upper housing can be opened by releasing the lock mechanism, and the sheet retainer can be moved to the regulation position. It is configured to include a release lever.

[0006]

In the printer of the present invention having the above structure, when the release lever is operated to open the upper casing,
Since the paper retainer moves to the restricting position that restricts the upward movement of the printed paper, the paper does not easily drop even if the paper discharge tray is tilted. Further, when the upper housing is closed, the paper presser moves to the release position where the restriction is released, so the paper presser does not get in the way when the printer is normally used.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of the printer of this embodiment. The printer is composed of an upper casing 1 and a lower casing 11, and the upper casing 1 is rotatably supported by a shaft 31 with respect to the lower casing 11. A paper discharge tray 23 is provided on the upper surface of the upper housing 1, and the paper 21 printed in the printer passes through the discharge rollers 22 and is discharged to the paper discharge tray 23.
Discharged on top. A release lever 3 for releasing the upper housing 1 from the lower housing 11 is provided on the right front part of the upper surface of the upper housing 1. Further, behind the release lever 3, a paper retainer 2 for restricting the upward movement of the printed paper 21 is arranged. The paper retainer 2 is interlocked with the release lever 3 and is configured to be rotatable so as to be able to take a restricting position shown by a broken line and a restricting release position shown by a solid line in the drawing.

FIG. 2 is a view showing a rotating mechanism of the paper pressing member 2,
When the upper housing 1 is in the closed state, the paper pressing member 2 is fixed to the regulation release position by the release lever 3. That is,
The sheet retainer 2 is subjected to upward spring pressure by the torsion spring 4, but is restrained from moving upward by the release lever 3.

FIG. 3 (b) is a diagram showing the relationship between the paper retainer 2 and the release lever 3 when the upper housing is in the closed state. FIG. 4 is a diagram showing the relationship between the lock lever 5 and the fixing pin 7 and the positional relationship between the upper housing 1 and the lower housing 11 in the closed state. In this state, the lock lever 5 attached to the upper casing 1 is regulated by the fixing pin 7 attached to the lower casing 11. Due to this regulation, the upper housing 1 and the lower housing 11
Keeps closed.

Next, a load is applied to the release lever 3 to
As shown by the arrow in (b), move the paper retainer in two directions,
That is, the lock lever 5 is rotated in the clockwise direction about the fulcrum 8 to release the lock lever 5 from the fixing pin 7 so that the upper housing 1 is opened to the lower housing 11 as shown in FIG. At this time, when the load applied to the release lever 3 is removed, the lock lever 5 is pulled by the lock spring 6 and rotates counterclockwise about the fulcrum 8. Along with this, the upper housing 1 moves upward in the arrow direction of FIG. 5 and is released from the lower housing 11, and the release lever 3 moves the paper pressing member 2
Get away from. At this time, the sheet presser 2 moves to a regulation position that regulates the upward movement of the printed sheet by the spring pressure of the torsion spring 4. This state is shown in FIG. 3A and FIG.

On the contrary, when the upper housing 1 is returned to the closed state by pushing down the upper housing 1 in the arrow downward direction of FIG. 5, that is, when the lock lever 5 is returned to the regulating position of the fixing pin 7, the release lever 3 is released. Is moved in the direction of the arrow in FIG. 3A, the paper presser 2 is returned to the regulation release position.

As described above, in this embodiment, when the release lever 3 is actuated in order to open the upper casing 1, the paper presser 2 is pressed.
Moves to a regulation position that regulates the upward movement of the printed paper 21, so that the printed paper 21 does not easily drop even if the paper discharge tray 23 tilts. Further, when the upper casing 1 is closed, the paper retainer 2 moves to the release position where the restriction is released, so that the paper retainer 2 does not get in the way when the printer is normally used.

In this embodiment, the release lever 3 is used to regulate the paper retainer 2, but the lock lever 5 or the lower housing 11 may be used. Further, in this embodiment, the paper presser 2
Although there is only one on the right side, it may be attached on the left side or the front side.

[0015]

As is apparent from the above description, the printer of the present invention is set at the restriction release position so that the paper retainer does not interfere with the removal of the paper during normal use, and when the upper housing is released. By making it move to the regulation position of the paper, it is difficult for the paper to drop.

[Brief description of drawings]

FIG. 1 is an overall view of a printer of an embodiment embodying the invention.

FIG. 2 is an explanatory diagram of a paper presser in the printer.

FIG. 3 is a diagram showing a relationship between a paper retainer and a release lever in the printer.

FIG. 4 is a diagram showing a closed state of an upper housing of the printer.

FIG. 5 is a diagram showing an open state of an upper housing of the printer.

[Explanation of symbols]

 1 Upper case 2 Paper retainer 3 Release lever 5 Lock lever 6 Lock spring 7 Fixing pin 11 Lower case 21 Printed paper

Claims (1)

[Claims] 1. A lower casing, an upper casing rotatably supported by the lower casing, a lock mechanism for keeping the upper casing closed with respect to the lower casing, and an upper casing. A paper ejection tray on the top surface, on which printed paper is stacked, and a regulation position that regulates the upward movement of printed paper and is provided at the end of the ejection tray. A printer comprising: a paper retainer that is movable to the first position; and a release lever that releases the lock mechanism to open the upper housing and moves the paper retainer to a regulation position.