JPH0446235B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a device for storing used base paper (discarded plate) in a rotary copying machine.

(b) Prior Art As a discharged plate storage device for a rotary copying machine, the one described, for example, in Japanese Patent Publication No. 18916/1983 has been proposed.

The waste plate storage device described in the above publication is equipped with a liner (base paper receiving member) having an L-shaped cross section on the downstream side of a pair of mutually meshing conveying spur gears (base paper conveying means). Inside the
It is configured to store used original paper from a rotary copying machine. When the inside of the liner is filled with used base paper (discarded plate), the liner is removed upwards and the base paper is discarded together with the liner, but this liner is not equipped with a full amount detector. Therefore, it is necessary to constantly check the amount of base paper in the liner, which is a great mental burden.

This is because by neglecting to check the amount of base paper in the liner, if more than a certain amount of base paper is packed into the liner, the base paper will become entangled with the conveying spur gear, and it is very difficult to remove this base paper. This is because it involves

Furthermore, a waste storage container has been proposed that notifies the user of the situation when the container is full of waste (see Japanese Utility Model Publication No. 55-25180). This waste storage container only outputs a signal to that effect when the storage container is filled with waste.

(C) Problems to be Solved by the Invention As mentioned above, in the conventional technology, a full amount detector to detect whether or not the liner is filled with base paper is not installed, so it is difficult for the operator to check the state. I had to constantly check it, which was very annoying.

If this check is neglected and used base paper becomes entangled in the conveying spur gear, the base paper will have highly viscous printing ink attached to it, which will not only make it difficult to remove the base paper, but also cause problems during work. This ink adhered to the fingertips of the users, making this task even more complicated.

In addition, the waste storage container described in the above-mentioned Japanese Utility Model Publication No. 55-25180 only outputs a signal to that effect when the storage container is filled with waste; It is not detected whether the box is securely attached to the main body of the apparatus, and such a detection means is required separately.

The present invention aims to solve the various problems of the above-mentioned prior art all at once.

(d) Means for Solving the Problems The present invention provides a base paper receiving member that is removably attached to the downstream side of the base paper conveyance means that conveys used printing base paper along the base paper conveyance direction. A detection member that can be displaced by the base paper when the receiving member is filled with base paper is provided at the downstream end of the receiving member, and detects the displacement of this detection member to notify the full state of the base paper. In a discharged plate storage device with a full-full detector that is equipped with a detector that outputs a signal, when the receiving member is removed from the device main body, the detection member is displaced and the detector detects the amount of original paper. The device is characterized in that it is configured to output a signal similar to the signal reporting the full state.

(E) Effect In the present invention, when the receiving member is filled with used base paper, the detection member is displaced and a signal notifying the full amount of base paper is output, so that the operator can check the amount of base paper in the receiving member. do not have to.

Furthermore, since the detector is configured to output a signal when the receiving member is removed from the main body of the device, it is possible to automatically determine whether the receiving member is completely attached to the main body of the device. It is done.

(F) Embodiment The drawings show a discharged plate storage device employed in a rotary copying machine as an embodiment of the present invention, and FIG. 1 is a vertical sectional view showing the main parts of the rotary copying machine, and FIG. FIG. 3 is a plan view showing a state with the upper cover removed. Further, FIG. 3 is a perspective view of the discharged plate storage device.

In these figures, reference numeral 1 denotes a main body of a rotary copying machine (hereinafter referred to as the apparatus main body), in which a cylindrical plate cylinder 2 is rotatably housed. The circumferential wall of the plate cylinder 2 has a porous structure that allows printing ink to pass through, so that the printing ink stored on its inner circumferential surface is applied to the printing base paper 4 wrapped around its outer circumferential surface. It is configured. 3 is a press roller that presses printing paper (not shown) against base paper 4; The plate cylinder 2 is fixed to a rotating shaft 5 rotatably mounted on the apparatus main body 1, and one end of the rotating shaft 5 is connected to the rotating shaft of a motor (not shown) via a reduction gear. ing.

A base paper mounting portion 6 is formed in a part of the outer peripheral side wall of the plate cylinder 2 and extends in a direction parallel to the axis of rotation thereof. Pins 7 and flanged pins 8 having umbrella-shaped flanges formed at their upper ends are partially alternately implanted. Note that the height of the stepped portion of the stepped pins 7 is formed at a position slightly lower than the lower surface of the flanged portion of the flanged pin 8. Therefore, when the mounting holes formed in the mounting ears of the base paper 4 are inserted and attached to the respective pins 7...8, the mounting ears are inserted into the stepped pins 7...
It is held by the upper surface of the stepped portion of the stepped pin 7 and the lower surface of the flange of the flanged pin 7 at a position slightly raised by the height of the stepped portion.

9, 9, 9 have their free ends connected to the flanged pin 8.
... and the stepped pins 7... are base paper peeling claws arranged so as to face each other. These base paper peeling claws 9, 9, 9 extend parallel to the rotational axis of the plate cylinder 2, and are fixed to a support shaft 10 rotatably mounted on the chassis of the apparatus main body 1. 10
is connected to a plunger 14 of a solenoid 13 via a bell crank 11 and a connecting rod 12. Therefore, when the plunger 14 performs a pulling action, the bell crank 11 moves toward the support shaft 1.
0 in the counterclockwise direction (FIG. 1), the sharply formed tips of the base paper peeling claws 9, 9, 9 approach the peripheral side wall of the plate cylinder 2. When the plate cylinder 2 rotates clockwise in this state, the tips of the peeling claws 9, 9, 9 touch the mounting ears of the base paper 4 and the plate cylinder 2.
The used base paper (discharged plate) 4 is sequentially peeled off from the plate cylinder 2.

A discharged master storage device 15 is provided on the downstream side of the base paper peeling claws 9, 9, 9 along the base paper conveyance direction. This discharged plate storage device 15 includes a plurality of pairs of spur gears 16...17 that mesh with each other as a raw paper transport means.
Container holding member 1 provided with ... at the upstream end
8, and a housing-shaped container 19 as a receiving member which is detachably attached to the container holding member 18. Note that the container holding member 18 is detachably attached to the main body 1 of the apparatus.

The spur gear pairs 16...17... are connected to a drive shaft 20 and a driven shaft 21 extending parallel to the rotational axis of the plate cylinder 2.
The drive shaft 20 connects to the rotation shaft of a motor (not shown) via a transmission gear 41 fixed to the end thereof and a reduction gear 22 rotatably mounted to the device main body 1. It is connected to the. The transmission gear 41 and the reduction gear 22 are configured to be able to approach and separate from each other, and when the container holding member 18 is inserted in the left direction (upstream direction) into the device main body 1, they mesh with each other, and when they are inserted in the right direction (downstream direction), they mesh with each other. ) when removed, they separate.

The container holding member 18 is provided with outwardly projecting pins 23 on both side walls thereof.
is a recess 2 provided in the chassis of the device main body 1.
4, this container holding member 1
8 is fixed to the main body 1 of the device.

Further, a hole 2 of an appropriate diameter is provided in the side wall of the container 19.
5 is opened, and a ball 40 that is biased to protrude toward the container 19 is attached to a portion of the container holding member 18 corresponding to this hole 25. This ball 40 has a slightly larger diameter than the hole 25, and by fitting into the hole 25, the container 19 is fixed to the container holding member 18.

A cover 27 having a generally L-shaped cross section is attached to the upper part of the container 19 so that it can be opened and closed, and one end is fixed to a swing shaft 26 that is rotatably attached to the upper part of the downstream side of the container 19. There are L on both ends of the swing shaft 26.
A letter-shaped first lever 28, 28 is fixed. The upper edges of the horizontal arms of the first levers 28, 28 are provided with
A pair of pins 29 protruding into the device body 1,
Cam portions 28a, 28a that slide with the cover 29 are formed, and pressing pieces 28b, 28b are formed for manually opening the cover 27.

Further, the other end of a first torsion spring 30, one end of which is locked to the side wall of the container 19, is locked to the vertical arm portions of the first levers 28, 28,
The cover 27 is rotated counterclockwise by the torsion spring 30, that is, the free end of the cover 27 is rotated toward the container 1.
It is elastically biased in a direction toward the upstream end of 9.

The free end of the cover 27 is provided with clamping claws 31, 3 that can selectively come into contact with the upstream edge of the container 19.
1 is fixed with rivets 32, 32. Further, guides 33 extending from the container holding member 18 are provided between the spur gears 16 at positions facing the drive shaft 20.

When the container 19 is inserted into the device main body 1, the first lever 2 is pressed as described above.
The cam portions 28a, 28a of 8, 28 are in contact with the pins 29, 29 of the device main body 1, and the cover 27 is rotated slightly clockwise against the first torsion spring 30 with its pivot shaft 26 as the center. Maintain a biased posture. At this time, the holding claws 31, 31 are
inserted between the drive shaft 20 and the driven shaft 21,
and is in sliding contact with the lower part of the drive shaft 20 (fourth
figure). Therefore, the used base paper 4 conveyed by the pair of spur gears 16...17...
It is stored in the container 19 without getting stuck on 1 and 31.

On the other hand, if the container 19 is even slightly removed from the device main body 1, the cam portion 2 of the first lever 28
8a and the pins 29, 29 of the device main body 1 are separated, the cover 27 is attached to the first torsion spring 3.
The elastic force of 0 causes the pivot shaft 26 to be rotated counterclockwise about the pivot shaft 26 . Therefore, the free end portions of the clamping claws 31, 31 are pressed against the upstream edge of the container 19, and the used base paper 4 is held against both 31, 1.
9 (Fig. 5).

Note that after the container 19 is completely removed from the device main body 1, the pressing piece 28 of the first lever 28
b, 28b with your fingertips, the cover 2
7 rotates largely clockwise around its pivot shaft 26 and becomes completely open. At this time, after the first torsion spring 30 is once compressed,
Since the cover 27 passes through the consideration point and is opened again, the once opened cover 27 maintains that position (6th
figure). Therefore, once the cover 27 is completely opened, the used base paper 4 filled in the container 19 can be discharged without continuing to press down the pressing pieces 28b, 28b.

Next, a full amount detector for base paper 4, which is the gist of the present invention, will be explained. Downstream inner wall 1 of the container 19
A detection plate 35 as a detection member is provided inside the cover 27 and has an upper edge fixed to a support shaft 34 extending parallel to the swing shaft 26 of the cover 27. A base end of a second lever 36 is fixed to the end of the support shaft 34, and a magnet piece 37 is fixed to the free end of the second lever 36. The device main body 1
At a portion corresponding to the magnet piece 37, a magnetic sensor 38 is provided as magnetic detection means such as a reed switch or a Hall element. A second torsion spring 39 is attached to the support shaft 34 to bias the detection plate 35 clockwise (counterclockwise in FIG. 3) until the container 19 is filled with used base paper 4. In this case, the free end of the detection plate 35 is biased toward the upstream side (FIG. 7). At this time, the second lever 36 is also biased clockwise, and the magnetic sensor 38 approaches the magnet piece 37. Therefore, the magnetic sensor 38 outputs a signal indicating that the container 19 is not yet filled with the base paper 4.

However, when the container 19 is filled with used base paper 4, the detection plate 35 is pressed on both sides of the lower side by the base paper 4, and this detection plate 35 resists the second torsion spring 39 and rotates the support shaft 34. The center is offset counterclockwise (Fig. 8). Then, the second lever 36 is also biased counterclockwise, and the magnet piece 37 is separated from the magnetic sensor 38, so that the magnetic sensor 38 detects that the container 19 is full of used base paper 4. A signal is output. By this output, activation of the discharged plate storage device 15 is prohibited, and a display to that effect is displayed on the operation panel (not shown) of the device main body 1.

Note that if the container 19 is not fully inserted into the device main body 1, the magnet piece 37 and the magnetic sensor 3
8 does not approach, and in this case as well, the magnetic sensor 38 outputs the same signal as when the container 19 is filled with the base paper 4.

That is, the magnetic sensor 38 detects whether or not the container 19 is filled with used base paper 4, and also detects whether or not the container 19 is fully inserted into the apparatus main body 1. However, in any of the above cases, it is not preferable to operate the discharged plate storage device 15, so the configuration is such that activation thereof is prohibited as described above.

In this embodiment, the magnet piece 37 is provided to interlock with the detection plate 35, and the magnetic sensor 38 is provided on the device main body 1 side. Magnetic sensor 3 on the side
8 may be provided. However, in this case, in order to remove the container 19 from the apparatus main body 1, a lead wire connector will be required between the magnetic sensor 38 and the apparatus main body 1.

Then, the plate cylinder 2 is removed by the base paper peeling claws 9, 9, 9.
The used base paper 4 peeled off from the spur gear pair 16
...17..., and when the container 19 is filled with the base paper 4, the detection plate 35 is biased downstream by the conveying force of the spur gear pairs 16...17. Then, the magnetic sensor 38 and the magnet piece 37 are separated, and the magnetic sensor 38 outputs a signal indicating that the container 19 is filled with the base paper 4, and this is displayed. Then, if the operator pulls out the container 19 toward the downstream side according to the display, the upstream end of the last stored base paper 4 will be held by the clamping claws 31, 31 fixed to the cover 27.
and the container 19 is taken out to the outside while being held between the upstream end edges thereof.

In this case, in the unlikely event that the base paper 4 is the spur gear pair 16...17...
When the base paper 4 becomes entangled, the entangled base paper 4 can be easily removed outside the apparatus main body 1 by removing the container 19 and then removing the container holding member 18 downstream from the apparatus main body 1.

FIGS. 9 and 10 are partial sectional views showing other embodiments of the detection member, and correspond to FIGS. 7 and 8 of the aforementioned embodiment, respectively. In these figures, parts that are the same as those in the embodiment described above are designated by the same reference numerals, and explanations thereof will be omitted.

In this embodiment, the detection plate 42 is made of an elastic material such as spring steel or plastic, and its upper end is screwed 43 to the upper part of the downstream inner wall 19a of the container 19.

and the detection plate 42 and the downstream inner wall 1 of the container 19.
9a, a micro switch 44 is interposed, and its lead wire is connected to the main body 1 of the device via a connector.
It is connected to the. This microswitch 44 corresponds to the magnetic sensor 38 of the previous embodiment.

When the container 19 is filled with the base paper 4, the detection plate 42 is elastically deformed downstream by the base paper 4, and the micro switch 44 is activated.

Then, from this micro switch 44,
A signal indicating that the container 19 is full of used base paper 4 will be output.

(G) Effects of the Invention In the present invention, when the receiving member is full of base paper, a signal is output to notify that fact, so that the operator does not have to mentally check the amount of base paper in the receiving member at all times. Freed from pain.

In addition, if the configuration is such that activation of the discharged master storage device is prohibited when the receiving member is filled with base paper, it is possible to completely prevent the base paper from becoming entangled with the conveying spur gear, and the operator's fingertips, etc. No ink will stick to the surface.

Furthermore, since the detector is configured to output a signal when the receiving member is removed from the device main body, it can be easily determined whether the receiving member is sufficiently attached to the device main body. .

[Brief explanation of the drawing]

All drawings show embodiments of the present invention.
Fig. 1 is a sectional view showing the main parts of a rotary copying machine, Fig. 2 is a plan view thereof, Fig. 3 is a perspective view showing a storage device for used base paper (discarded plates), Fig. 4 is a sectional view thereof, and Fig. 4 is a sectional view thereof. 5
6 are sectional views corresponding to FIG. 4 showing different aspects, FIGS. 7 and 8 are sectional views showing different aspects of the detection plate, and FIGS. 9 and 10 are sectional views corresponding to FIG. 4 showing different aspects of the detection plate. FIG. 7 is a cross-sectional view showing different aspects of another embodiment. 1... Main body of rotary copying machine (device main body), 4...
Printing base paper, 15... Discharged plate storage device, 19... Container (receiving member), 34... Support shaft, 35, 42...
Detection plate, 36... second lever, 37... magnet piece, 38... magnetic sensor, 39... second torsion spring.

Claims (1)

[Scope of Claims] 1. A base paper receiving member is removably attached to the downstream side of the base paper conveying means for conveying used base paper along the base paper conveying direction, and the downstream end of this receiving member The part is provided with a detection member that can be displaced by the base paper when the receiving member is filled with the base paper, and a detector that detects the displacement of the detection member and outputs a signal notifying the full state of the base paper. In the discarded plate storage device equipped with a fullness detector, when the receiving member is removed from the device main body, the detector is activated, and the detector outputs a signal similar to the signal reporting the fullness state of the base paper. A plate ejecting storage device with a full quantity detector, characterized in that it is configured to output a signal.