JPH0741228A - Stacker device for recording paper - Google Patents

Abstract

PURPOSE:To provide a stacker device for the recording paper which can stack the recording paper in the order of the page and at the specified position, and effectively remove the fouling of the recording paper by the recording substance. CONSTITUTION:Folded parts 11A, 12A which are provided with rail-shaped recording paper holding plates 11, 12 mounted on each side of a base stacker 1 and directed inward of one upper end part along the longitudinal direction of the recording paper holding plates 11, 12 are provided, and rotary supporting shafts 11B, 12B are provided on the opposite side of these folded parts 11A, 12A. Reverse rotation synchronizing mechanisms 21, 22 to simultaneously rotate the recording paper holding plates 11,12 at the same speed in the reverse and outward direction are provided, and a driving mechanism control part 33 to control the drive of these reverse rotation synchronizing mechanisms 21, 22 is provided. This driving mechanism control part 33 has the function to stop the folded parts 11A, 12A to the specified upper position, and the function to give one turn to the recording paper holding plates 11, 12 in the reverse direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording paper stacker device, and more particularly to a recording paper stacker device used in a facsimile machine or the like.

[0002]

2. Description of the Related Art A conventional example is shown in FIGS. This Figure 6
In the conventional example shown in FIG. 7, the recording paper 41 discharged from the recording device 53 with the print recording surface facing upward is stacked on the upper surface of the recording paper stacker 58 with the print recording surface facing upward, and discharged first. The next recording paper 42 is sequentially stacked on the recording paper 41.

[0003]

The above-described conventional recording paper stacker 58 adopts a method of stacking the next recording paper 42 on the recording paper 41 discharged with the print recording surface facing upward. Therefore, there is a drawback that the pages of the recording paper 4 discharged from the recording device 53 are stacked and stacked in reverse order.

As shown in FIG. 7, when the recording papers 42 are stacked on the stacked recording papers 41,
Since the front surface (printing surface) of the recording paper 41 that has already been output is rubbed by the back surface of the recording paper 42 that is output later, there is a disadvantage that the recording paper 41 is pushed out by the ejection operation of the recording paper 42. There is an inconvenience that the front surface of the recording paper 41 and the back surface of the recording paper 42 are soiled by the recording material.

[0005]

It is an object of the present invention to improve the inconveniences of the prior art, particularly to stack the recording paper in the order of pages and in a fixed position, and effectively eliminate the contamination of the recording paper due to the recording material on the recording paper. It is an object of the present invention to provide a stacker device for recording sheets to be obtained.

[0006]

According to the present invention, a loading plate for loading printed and discharged recording papers, a paper detection sensor for detecting the timing of discharging the recording papers, and a loading plate on both sides of the loading plate. And a rail-shaped recording paper holding plate mounted along the stacking plate.

Bending parts inwardly facing each other are provided at upper end portions along the longitudinal direction of each recording paper holding plate, and the recording paper holding plates located on the opposite side of the bending parts are arranged in the longitudinal direction. A rotation spindle is provided at the other end along the rotation axis.

Further, a reverse rotation synchronous drive mechanism for driving the recording paper holding plates to rotate outward at the same speed at the same time at the same time is provided, and a drive mechanism control unit for driving and controlling the reverse rotation synchronous drive mechanism is provided. There is.

The drive mechanism control unit has a fixed position control function for stopping the bent portion of the recording paper holding plate at a fixed position above.
It is configured to have a reverse rotation drive control function that operates immediately after inputting the paper discharge information from the paper detection sensor to drive the recording paper holding plate in the reverse direction by one rotation in the reverse direction. This aims to achieve the above-mentioned object.

[0010]

[Operation] The recording paper discharged from the recording device is stacked on the base stacker. When the discharge of the recording paper is completed, the recording paper holding plate rotates outward in the opposite direction. As a result, the recording paper is scooped up from below.
It is held on two recording paper holding plates. The recording paper 42 to be ejected next to the recording paper 41 ejected first passes below the recording paper 41 held on the recording paper holding plate and is stacked on the base stacker. When the discharge of the recording paper 42 is completed, the recording paper holding plate is rotated and the recording paper 42 is discharged as described above.
Are held under the recording paper 41.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. In the embodiment shown in FIGS. 1 to 5, the base stacker 1 as a loading plate for loading the printed and ejected recording papers 41, 42, ...
A sheet detection sensor 6 for detecting the ejection timing of the sheet 1 and rail-shaped recording sheet holding plates 11 and 12 mounted on both sides of the base stacker 1 along the base stacker 1 are provided.

Bending portions 11 are formed at the upper end portions of the recording paper holding plates 11 and 12 in the longitudinal direction, and are bent inward toward each other.
A and 12A are provided, and the bent portions 11A and 12A
Rotating support shafts 11B and 12B are provided at the other end (lower end side in FIG. 1) along the longitudinal direction of the recording paper holding plate located on the opposite side of.

Further, the reverse rotation synchronous drive mechanisms 21 and 22 for simultaneously driving the recording paper holding plates 11 and 12 in reverse rotation at the same speed outwardly are provided, and the reverse rotation synchronous drive mechanisms 21 and 22 are driven. A drive mechanism control unit 33 for controlling is provided.

The drive mechanism control section 33 receives a fixed position control function for stopping the bent portions 11A and 12A of the recording sheet holding plate 1 at a fixed upper position, and sheet discharge information from the sheet detection sensor 6 described above. It has a reverse rotation drive control function that operates immediately to drive the recording paper holding plates 11 and 12 in the reverse direction by one rotation and reverse rotation. Each recording paper holding plate 11,
Low-friction surfaces are formed on the outer surfaces of the bent portions 11A and 12A.

Reference numerals 21A and 22A indicate bearing portions that rotatably support the recording paper holding plates 11 and 12 described above.
Further, the recording paper holding plates 11 and 12 are located at positions such that the recording paper holding plates 11 and 12 come out and hide from the upper side of the base stacker 1 by performing a rotational movement, and the recording papers 41 and 42.
.. is set to be slightly wider than the width.

The recording paper 41 discharged from the recording device 3 is first stacked on the base stacker 1.
The detection unit 6 detects the end of discharging the recording paper 41 and outputs it to the drive mechanism control unit 33. Control unit 3 receiving the output of detection unit 6
3 is a reverse rotation synchronous drive mechanism 2 for the recording paper holding plates 11 and 12.
1 and 22 rotate in the direction of the arrow in FIG. Then, as shown in FIGS. 2A, 2B, and 2C, the recording paper 41 is held on the recording paper holding plates 11 and 12.

The recording paper 42 discharged next to the recording paper 41
As shown in FIG. 3, the paper passes under the recording paper 41 held on the recording paper holding plates 11 and 12, and is stacked on the base stacker 5. When the detection unit 6 detects the end of discharge of the recording paper 42 and outputs it to the drive mechanism control unit 33, the drive mechanism control unit 33 operates in the same manner as described above, and the recording paper holding plates 11, 1
2 is driven to rotate, so that FIG. 4 (A), FIG. 4 (B), and FIG.
The recording paper 42 is stacked under the recording paper 41 as shown in FIG.

[0018]

Since the present invention is constructed and functions as described above, it is possible to stack the recording papers discharged from the recording apparatus in the order of pages from the one having the smallest page number upward. It is possible to eliminate the inconvenience that the recording paper ejected later pushes out the recording paper ejected earlier, and it is possible to effectively eliminate the contamination of the recording paper due to the recording substance on the recording paper. It is possible to provide a stacker device for recording paper.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the operation of FIG. 1, and FIG.
2B shows a state immediately after the recording paper is discharged, FIG. 2B shows a state in which the recording paper holding plate is rotated to lift the recording paper from the base stacker, and FIG. 2C shows the recording paper holding plate recording. The respective states are shown immediately after the paper is lifted from the base stacker.

FIG. 3 is an operation explanatory diagram of the present invention, and is a diagram showing a state when the second and subsequent recording sheets are stacked on the base stacker.

FIG. 4 is an explanatory diagram showing the operation of FIG. 1, and FIG.
Shows the state immediately after the second recording sheet is ejected.
FIG. 4B shows a state in which the recording paper holding plate is rotated and the second recording paper is superposed on the first recording paper and simultaneously lifted from the base stacker, and FIG. 4C shows the first and second recording papers. The respective states immediately after the first recording paper is lifted from the base stacker by the recording paper holding plate are shown.

5 is an explanatory diagram showing recording sheets arranged in order of pages by the operation of FIG.

FIG. 6 is a perspective view showing an example of a conventional recording paper stacker.

7 is an explanatory diagram showing an operation of the recording paper stacker of FIG.

[Explanation of symbols]

 1 Base Stacker as Loading Plate 3 Recording Device 6 Detecting Section 11 and 12 Recording Paper Holding Plate 11A and 12A Bending Section 11B and 12B Rotation Support Shaft 21 and 22 Reverse Rotation Synchronous Drive Mechanism 33 Drive Mechanism Control Section 41 and 42 Recording Paper

Claims (2)

[Claims] 1. A stacking plate for stacking printed and discharged recording papers, a paper detection sensor for detecting a discharge timing of the recording papers, and both sides of the stacking plate equipped along the stacking plate. A recording sheet holding plate in the form of a rail that is formed on the opposite side of the bending portion. A rotation support shaft is provided at the other end portion along the longitudinal direction of the recording paper holding plate, and a reverse rotation synchronous drive mechanism for driving the respective recording paper holding plates in the opposite direction toward the outside at the same speed at the same time is provided.
A drive mechanism control unit for driving and controlling the reverse rotation synchronous drive mechanism is provided, and the drive mechanism control unit stops the bent portion of the recording paper holding plate at a fixed upper position, and the paper detection sensor. A stacker device for recording paper, which is provided with a reverse rotation drive control function which is activated immediately after inputting the paper discharge information from the printer and reversely drives the recording paper holding plate in the reverse direction by one rotation. 2. The low friction surface is formed on the outer surface of the bent portion of each of the recording paper holding plates.
Stacker device for recording paper described.