JPS58114055A - Original platen moving type picture recording device - Google Patents

Abstract

PURPOSE:To facilitate cleaning operation by unlocking a platen from a locking device and releasing a shutter mechanism through one lever operation. CONSTITUTION:In a figure, 60 is an operation lever for manual stopper unlocking, which is supported pivotally on holders 62 and 63 fixed to a side plate through a pin 61 and energized upward by a spring 65. This lever 60 while displaced to a stationary position by the spring force of the spring 65 engages a link 42 and the upper edge of an arm 64. Once the lever 60 is pressed in a direction E, the lever 60 presses down the arm 64 and one end of the link 42 to press down the stopper 55 in a direction F through the link 42, and consequently the platen is uncloked; and the arm 64, on the other hand, is rotated in a direction G to elevate a pin 24 in a direction C, thereby rotating an actuator in a direction H.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image recording device of a moving document table type, which includes a stop horn 4 for restraining the movement of the document table when not driven, and a shutter for an optical system. The present invention relates to a configuration in which the document table stopper and the optical system shutter can be released by a simple operation when cleaning the document table.

In general, for example, copying machines that have a stopper for a movable document table are generally agreed to be configured to prevent the document table from moving inadvertently. In the case of a so-called all-in-one type that can be opened, it is necessary to prevent the document table from falling and colliding with other parts even if the document table is opened.

In addition, a shutter is installed in the optical system that scans the document on the document table to prevent dust from entering when it is not in use, and a portion of the shutter can be used to perform rank exposure of non-image areas. A stone known for its ability to be rounded.

However, a copying machine equipped with a stopper and shutter as described above has a problem in that a special operation is required for cleaning. For example, if you are using a copying machine that restricts the movement of the document table when it is not driven, or if you are cleaning the surface of the document glass or cleaning the optical system, you can release the document table stopper and remove the prohibited area. There are times when it is necessary to move the document to the document table, and the shutter is closed when the document is not driven.
This is because when cleaning the optical system, a means for opening the shutter is required. In the worst case scenario, a worker attempting to clean the optical system must first release the original platen lock and move the original platen to the edge to expose the shutter area, then open the shutter and remove the lens inside with a brush, etc. This means that you will have to do the tedious work of cleaning it.

An object of the present invention is to eliminate the above-mentioned inconvenience.

In other words, although cleaning the device is a task that occurs approximately 11 times a month, by operating only one lever, the document table is released from its resting position.
Moreover, if the shutter can be released, there is an advantage in that the cleaning work can be performed extremely easily.The present invention aims to provide an operating mechanism with a simple configuration for rounding.

And a book! The gist of the illumination is a stopper mechanism that restricts the movement of the movable document platen, which protrudes from the main body of the device when the device is not in operation, and a stopper mechanism that swings and moves out of the optical path of the lens optical system when the device is in operation. In an image recording device of a movable document table type, which is equipped with a shutter for moving the document table, a manual operation lever is provided for releasing the lock from the document table. An image recording device of a moving type document table is provided, which is characterized by being provided with interlocking means for retracting a shutter from an optical path.

Hereinafter, an embodiment in which the present invention is applied to a copying machine will be explained based on an open view.

The 1st WJ is a sectional view showing a schematic configuration of an example of a nine-armed aircraft to which the operating device according to the present invention is applied.In M, @IIC, 1
1 is a document table glass, 2 is a lens, 3 is a photosensitive drum, 5 is a developing sleeve, 11 is a fixing roller, and 15 is a shutter. Note that 4 is a charger, 6Fi is a paper feed roller, 7 is a registration roller, 8 is a transfer charger, 9 is a separation belt, 10 is a transfer paper/conveyance guide, 11 is a fixing roller, 12 is a paper ejection roller, and 13 is an ejection roller. A paper tray, 14 light sources, 16 a lens holder, 20d a bale reflecting shade, 21 a front reflecting shade, and 30 a document table.

The copying machine line and document table 30 having the above configuration are shown in A-1 in the figure.
The copying operation is performed by moving in the direction, and since the movement of the copying machine body is well known, a description thereof will be omitted.

Figures 2 and 3 show the movement of the shutter 15 of the optical system, and Figure 2 shows the position of the shutter 15 biased to the rest position by the spring 19 in the non-energized state and in the non-exposure state. . When exposure is started, the original platen glass 1 begins to move in the direction of M in the figure, and in synchronization with it, the bin 24 is moved in the direction of C by a drive mechanism (not shown), and the actuator 22 moves along the shaft 23. It will rotate around the center.

Therefore, the shutter 15 is pushed by the actuator 22 and rotates clockwise in the figure around the shaft 25, and as shown in FIG. 3, the shutter 15 is removed from the optical path and exposure is performed.

Note that -18 is a stone that determines the rest position of the shutter 15.26 is a slit opening formed in the copying machine housing 27. Further, the shape of the shutter 15 is shown in a perspective view in FIG. 6, which will be described later.

FIG. 4 shows the copying machine original table stand y nof to which the present invention is applied.
55, as seen from the back of the copying machine. 33 and 33' are clutches that drive the document table 30, and when the link 42 is pulled by the granger 40 and is at the dormitory line position, it indicates the exposure state, and when the plunger 40 is released and the link 42 is pulled by the spring 44. When it rotates about the shaft 41 and reaches the position indicated by the dashed line shown in the figure, it is in a non-exposed state and a non-driven state IIt-. tatast/parable 55
The pin 54 of the link 42 is loosely fitted into the elongated hole 56 formed in the hole 56, and the stopper 55 is always held in place by the spring 58.
4, the stop 55 interlocks with the link 42 and is located at the position indicated by the solid line during exposure, but is provided so that it rises to the position indicated by the two-dot chain line during non-exposure. .

FIG. 5 shows the relationship between the stopper 55 and the document table 30. This is a view of the machine from the back. As shown in this figure, the document table 30 is provided with a notch 59.
When not driven, the stopper 55Fi enters the notch 59 and is restrained to the bar so that it cannot move toward the left side from the center of the document table 30=i. At the time of nine exposures,
The document table 30 can be freely moved in the direction A by lowering the document table 55 by the link 42.

When the exposure is completed and the clutch 33 is disengaged, it enters a non-exposed state and the stocker 55 tries to rise, but it gets caught in the document table 30 and stops halfway, so the document table 30 is in the center position as shown in the figure. The stop/f 55 and document table 30 can slide until the document table 30 reaches the center, and when the document table 30 reaches the center, the stop horn 455 sinks into the notch 59 (protrudes upward in the figure), and the document table 30U It moves in one direction until it stops at the scheduled position.

With the above configuration, the stopper 55 moves the document table 30 [
It will be understood that the regulation is applied only when not being driven.

However, in order to clean the L1 optical system, for example, the lens 2 in a copying machine with the above configuration, it is necessary to clean the original platen 301.
It is naturally understood from the structural point of view that it is necessary to move the optical system in the direction -A until it is exposed, and then open the shutter 15 to expose the lens 2.

Therefore, in the present invention, when the function of the stopper that restricts the movement of the document table is released, the shutter is automatically opened at the same time.
In short, the aforementioned link 42 (iD one end (left end S in the figure)
) is manually pushed down in the figure against the force of the pressure spring 58 of the stopper/155 (in other words, the stopper function is released), the arm provided to be swung by this pushing down. In the swinging motion, the second pin z4 is engaged with the actuator 22 of the shutter mechanism.

The feature is that the shutter 15 is opened by moving it in the direction C shown in FIG. 3 (see FIGS. 2 and 3).

The features of the present invention will be explained with reference to the embodiment shown in FIG. 6. FIG. 6 shows the apparatus according to Solution 1 of the present invention, as seen diagonally from the rear, showing the axis of the shutter mechanism mentioned above. 2
A shaft 41, which forms the center of rotation of the link 42 of the 3125% and straight mechanism, is fixed to a side plate (fixing S of the copying machine), which is not shown in the figure. link 42
An arm 64, which is provided parallel to this, is pivotally supported at both ends so as to be able to swing upward and downward. A pin 24 that engages to rotate the actuator 22 of the shutter mechanism is fixed to one end of the arm 64, and the other end extends to be located at the rear surface of the shutter 55.

In Figure 9, 60 is an operation lever for releasing the stopper manual, and the letter hole 62 is fixed to the aforementioned side plate (not shown).
, 63 by a pin 61, and is given an upward force by a spring 65.Then, ?-60 is biased to a rest position by the force of the spring 65 shown. The lever 60 is configured to come into contact with the upper edge of the end of the link 42 and the arm 64, and when pushed in the direction of the lever 60tN, the lever 60 brings the arm 64 and one end of the link 42 together. Press down 1 nonk 42
Push down the stock plate 55 in the direction of F and press the document table 30.
At the same time, the arm 64tG is rotated to raise the pin 24 in the C direction, thereby rotating the actuator in the H direction.

Therefore, the pressing down operation of Renomer 60 is performed by link 4.
2 releases the restriction on the movement of the original platen of the scanner 55, and at the same time causes the shutter 1s to be rotated in one direction in the figure (exposure of the lens).

Variations of the above embodiments can be envisaged, in which the lever may rotate in the same direction as the link 42, arm 64 to push down the link 42, arm 64;
It will be clear that the link 42 may be configured to be driven by the arm 64 only by the arm 64 being pushed, or vice versa.

As described above, in the image recording apparatus of the movable document table according to the present invention, releasing the function of the locking device of the document table and opening the shutter mechanism are performed by a single Lenoy operation.

By making this possible, the cleaning work was greatly simplified, and the practical benefits thereof were extremely large.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a schematic structure of a copying machine to which the present invention is applied; FIG. 2 is a diagram of the shutter mechanism of the copying machine in a non-light state;
Figure 3 is a diagram at the time of exposure. Figure 4 is a diagram showing the schematic configuration of the original platen stopper mechanism. Figure 5 is a diagram showing the relationship between the stopper mechanism and the original platen. Figure 6 is one of the parts of the present invention. FIG. 2 is a schematic explanatory diagram of a configuration of a release device showing an embodiment. l: Base glass 2: Lens 3: Photosensitive drum 4. : Charger 5: LJ sleeve 6: Paper feed roller 7: Registration roller 8: Transfer charger 9: Separation belt 1
0: Conveyance f-id 11: Fixing roller 12: "Paper discharge roller 13: Paper discharge tray 14: Light source 15
: Shutter 16: Lens holder 18: Strap 19: Panel 20: Rear reflective shade
21: Front reflective cap 22 Near Acta 23:
Shaft 24: Bin 25: Shaft 26: Slit opening 27: Copy machine housing 30: Document table 33: Clutch 40
41: Axis 42: Risik 43: Pivot pin 44: Pa
Ne 54: Bottle 55: Stotno 4 56 = Long Large 57: Case 58: Spring 59: Notch 6
0: Operation lever 61: Pin 62: Holder 63: Holder 64 Near-muro 5: Spring 1 Fig. 1 3 Fig. 2 Fig. 3 Fig. 5

Claims (1)

[Claims] A stop mechanism 9 protrudes from the main body of the apparatus when the apparatus is not in operation, and a shutter mechanism that restricts the movement of the movable original platen when the apparatus is not in operation, and a shutter that moves to move away from the optical system optical path of the lens when the apparatus is in operation. In the image recording apparatus with a movable document table, a manual operation lever is provided for releasing the engagement of the document table with the document table, and the shutter is retracted from the optical path in conjunction with the movement of the manual operation lever /f-. 1. An image recording I11 device of a moving type document table, characterized in that it is provided with an interlocking means for moving an original table.