JPH0543114A - Paper discharge tray installation device - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to enable one paper ejection tray to be used for both upper paper ejection and lower paper ejection. [Structure] Two fulcrum shafts 2 and 3 are provided on both side surfaces of a discharge tray main body 1 for a printing device, and the fulcrum shafts 2 and 3 of the discharge tray main body 1 are attached to a discharge tray mounting portion of the printing device main body. Guide grooves to be engaged with are formed on the same circumference having the same diameter as the distance between the two fulcrum shafts on both sides of the discharge tray main body 1, and the discharge tray main body 1 is in the upper discharge state and the lower discharge state. And a stopper 4 for receiving the recording paper 15 when the paper is discharged downward from the paper discharge tray body 1.
A device for attaching the discharge tray, which is provided with.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting a discharge tray for stacking recording sheets printed by a printing device.

[0002]

2. Description of the Related Art Paper discharge in a conventional small-sized printing apparatus is performed by either upper paper discharge or lower paper discharge.

The conventional example will be described below with reference to FIGS. 8 and 9. First, regarding the upper sheet discharge, FIG.
21 is a printer main body, 22 is a paper discharge tray attached to the printer main body 21, and 23 is a printer main body.
It is the recording paper discharged from 21. The shape of the discharge tray 22 is flat, and the discharged recording papers 23 are received in a stacked state at an angle slightly inclined from the horizontal,
The visibility of the recording paper 23 is good, and the recording paper 23 can be easily taken out.

Next, the lower paper discharge will be described with reference to FIG. 9. Reference numeral 24 is a printer main body, 25 is a paper discharge tray attached to the printer main body 24, and 26 is a discharged recording paper. The shape of the paper discharge tray 25 is V-shaped, and the discharged recording paper 26 can be held in a substantially upright state.

[0005]

As described above, conventionally, a paper discharge tray for upper paper discharge and a paper discharge tray for lower paper discharge are required.

The present invention solves such a problem, and an object thereof is to make it possible to use one discharge tray for both upper discharge and lower discharge.

[0007]

In order to solve this problem, the present invention provides two fulcrum shafts on both side surfaces of a discharge tray body for a printing apparatus, and a discharge tray mounting portion of the printing apparatus body. A guide groove that engages with the fulcrum shaft of the paper ejection tray main body is formed on the same circumference with the same diameter as the distance between the two fulcrum shafts on both sides of the paper ejection tray main body, and the paper ejection tray main body is ejected upward. It is configured to be rotatable between a paper state and a lower paper discharge state, and the paper discharge tray main body is provided with a stopper for receiving the recording paper in the lower paper discharge state.

[0008]

With the above structure, the present invention makes it possible to easily switch between upper discharge and lower discharge by rotating the two fulcrum shafts of the discharge tray along the guide grooves provided in the printer body. it can.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings. In FIG. 1, a discharge tray body 1 has two fulcrum shafts 2 and 3 on both side surfaces near one end. In addition, a metal wire is almost U-shaped on the other end of the discharge tray body 1.
A stopper 4, which is bent in a letter shape, is supported by the discharge tray body 1 at a fulcrum portion 5. Specifically, the stopper 4 includes a connecting portion 4a on one end side and a bending portion 4b on the other end side, and an intermediate portion of the bending portion 4b is fitted to a fulcrum portion 5 integrated with the paper discharge tray body 1 ( (See FIG. 4) It is rotatably supported within a fixed angle range. Reference numeral 6 denotes a concave storage portion formed on the surface of the discharge tray body 1 for storing the connecting portion 4a of the stopper 4.

FIG. 2 shows a state in which the discharge tray body 1 is horizontal. In this state, the stopper 4 supported by the fulcrum 5 has its connecting portion 4a on one end side stored in the storage portion 6 of the discharge tray body 1 by its own weight.

FIG. 3 shows a state in which the discharge tray body 1 is oriented in the vertical direction. In this state, the stopper 4 supported by the fulcrum portion 5 tends to separate from the discharge tray main body 1 at the connecting portion 4a on one end side by its own weight. But,
The other end portion 7 of the stopper 4 contacts the other end rear surface of the discharge tray body 1 and the stopper 4 cannot be opened beyond a certain angle.

FIG. 5 is an enlarged view of the discharge tray mounting portion of the printing apparatus. In FIG. 5, arc-shaped guide grooves 9 and 10 are provided on both sides of the discharge tray mounting portion on one side of the printer body 8. The center lines of the guide grooves 9 and 10 are on the same circumference, and the diameter thereof is configured to match the distance L between the two fulcrum shafts 2 and 3 of the paper discharge tray body 1. By engaging the fulcrum shaft 2 of the paper ejection tray main body 1 with the guide groove 9 and the fulcrum shaft 3 of the paper ejection tray main body 1 with the guide groove 10, the paper ejection tray main body 1 is rotated with respect to the printer main body 8. The mounting angle can be changed. When the fulcrum shafts 2 and 3 are located at the one ends 11 and 12 located above and below the guide grooves 9 and 10, the discharge tray body 1 faces downward with respect to the printer body 8 (see FIG. 6). When the fulcrum shafts 2 and 3 are in the bulge portions 13 and 14 at the other ends of the guide grooves 9 and 10, the discharge tray main body 1 is the printer main body 8
The discharge tray main body 1 is in a locked state (see FIG. 7).

As shown in FIG. 6, when the discharge tray main body 1 is attached to the printer main body 8 so that the discharge direction is downward, the stopper 4 is opened from the discharge tray main body 1 at a constant angle. The recording paper 15 which is in the state and discharged is received by the stopper 4.

As shown in FIG. 7, when the discharge tray main body 1 is attached to the printer main body 8 so that the discharge direction is diagonally upward, the connecting portion 4a at one end of the stopper 4 has the discharge tray main body 1 The ejected recording paper 15 is stacked on the stopper 4 because it is stored in the storage section 6 of FIG.
Therefore, the stacked recording papers have good visibility and are easy to take out.

[0015]

As described above, according to the present invention, one type of paper discharge tray can be applied to both the upper paper discharge and the lower paper discharge with respect to the printer main body. It is not necessary to use the paper ejection tray of 1 and the paper ejection tray dedicated to the lower paper ejection.

[Brief description of drawings]

FIG. 1 is an external perspective view of a paper discharge tray according to an embodiment of the present invention.

FIG. 2 is a side view showing a state in which the paper discharge tray is placed horizontally.

FIG. 3 is a side view showing a state in which the paper discharge tray is placed vertically.

FIG. 4 is an enlarged side view of a stopper mounting portion of the paper discharge tray.

FIG. 5 is an enlarged view of a discharge tray mounting portion of the printer body according to the embodiment of the present invention.

FIG. 6 is a side view showing a state in which the paper discharge tray of the embodiment of the present invention is attached to the printing apparatus for discharging paper downward.

FIG. 7 is a side view showing a state in which the paper discharge tray of the embodiment of the present invention is mounted on the printing apparatus for upward paper discharge.

FIG. 8 is a side view showing a state in which a conventional paper discharge tray is mounted on a printing device for upward paper discharge.

FIG. 9 is a side view showing a state in which a conventional paper discharge tray is attached to a printing device for discharging paper downward.

[Explanation of symbols]

 1 Paper ejection tray main body 2 Support shaft 3 Support shaft 4 Stopper 4a Connecting part 4b Bending part 5 Support part 6 Storage part 7 Other end part 8 Printer main body 9 Guide groove 10 Guide groove 11 One end part 12 One end part 13 Swelling part 14 Bulge 15 Recording paper

Claims (1)

[Claims] 1. A fulcrum shaft is provided on each of both side surfaces of a discharge tray main body for a printing device, and a guide groove for engaging with the fulcrum shaft of the discharge tray main body is provided in a discharge tray mounting portion of the printing device main body. Are formed on the same circumference with the same diameter as the distance between the two fulcrum shafts on both sides of the paper ejection tray body, and the paper ejection tray body can be rotated between the upper paper ejection state and the lower paper ejection state. A device for mounting a paper ejection tray, which comprises a stopper for receiving the recording paper in the paper ejection tray body when the paper is ejected downward.