JPH0423884Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a copying machine with a punch, and more specifically, a punching mechanism for punching a filing hole provided in the middle of a copying machine transfer path, and this punching mechanism. The present invention relates to an improvement of a punch-equipped copying machine equipped with a drive source for driving a punch-equipped copying machine.

[Prior art]

Generally, copies made with a copying machine are filed for use or storage.
Conventionally, the method used was to manually punch holes all together after copying.

However, in such a method, not only the positions of the holes drilled in the copy paper become irregular, but also manual work is involved, which is unsatisfactory in terms of work efficiency.

Therefore, there was a desire for a copying machine that would be able to immediately file copies, or in other words, copy and perforate with a single touch.

An example of a utility model that meets this need is Publication No. 40533 of 1982 for utility models. That is, as shown in FIG. 5, the punching mechanism 15 is disposed in the middle of the path from the paper feed cassette 7 to the photosensitive drum 1, and the copy paper P sent from the paper feed cassette 7 is perforated one by one. Ru. That is, it is perforated before copying.

The perforated copy paper P is sent to the photosensitive drum 1 for copying, and after being subjected to processing such as transfer, it is peeled off from the photosensitive drum 1 and sent to the fixing device 13, where it is fixed and the copying process is completed. After that, the copying machine is discharged from the copying machine via the discharging roller 16.

In the figure, 18 is punch waste, and 20 is a punch waste box.

As shown in FIG. 6, in the punching mechanism 15, a punching pin 15a is driven by a drive source 17 consisting of an electromagnetic solenoid 17a through a lever 17c and a lever 17d against the elasticity of a spring 17b to guide the copy paper p. Through holes 23a provided in the upper guide 22a and lower guide 22b,
By appearing and retracting from 23b, a perforation is made in the copy paper p that has been guided and transferred between the upper and lower guides 22a and 22b.

When the copy paper p is punched in this manner, punch waste 18 is generated.

The generated punch waste 18 is removed from the through holes 23a, 2.
It passes through 3b and falls directly below.

A punch waste box 20 is provided at the bottom of the punching mechanism 15.
is provided, so that the punch scraps 18 that have fallen are stored in the punch scrap box 20 as they are.

[Problem that the invention attempts to solve]

The copying machine with a punch has achieved some success in that copying and punching can be performed with one touch.

However, in such a copying machine with a punch, there is a restriction that the punch waste box 20 must be placed below the punching mechanism 15, and the size of the punch waste box 20 cannot be made large enough. There was a problem in that the punch waste box 18 quickly became full.

It is an object of the present invention to solve the above-mentioned problem of a punch-equipped copying machine in which the size of the punch waste box arrangement 20 is restricted.

[Means for solving problems]

In order to achieve the above object, the present invention provides the following copying machine with a punch. That is, the present invention includes a punching mechanism for punching a filing hole provided in the middle of a copy paper transport path, a punch waste box for storing punch waste generated by the punching mechanism, and a punch waste box connected to the punching mechanism, The punch-equipped copying machine is equipped with a hammer that knocks the punch waste box in order to flatten the punch waste in the punch waste box, and a drive source for driving the punch mechanism and the hammer.

[Effect]

When the copy paper arrives in a punching mechanism provided in the middle of the copy paper transport path, the punching mechanism is driven by a drive source, and when a filing hole is punched in the copy paper, the punch waste is collected at the bottom of the punching mechanism. The punch waste that falls into the punch waste box gradually accumulates and becomes approximately conical in shape.

On the other hand, a hammer connected to the punching mechanism operates as the punching mechanism is driven to knock the punch waste box.

The punch waste box is vibrated by the notch, and the punch waste is evenly deposited in the box, so that the surface thereof becomes substantially flat.

〔Example〕

Hereinafter, how the configuration of the present invention is actually implemented will be explained with reference to the drawings, along with its operation. FIG. 1 is a sectional view of a copying machine with a punch according to an embodiment of the present invention, and X in the figure indicates the copying machine.

A photosensitive drum 1 whose entire circumferential surface is coated with a photosensitive layer (not shown) is rotatably mounted approximately in the center of the copying machine The reflected light is reflected by the reflecting mirror 28, 2
9, 30, 31, a lens 32, and a reflecting mirror 33 to form an image of the document onto the photosensitive layer, thereby forming an electrostatic latent image on the photosensitive layer.

Around the photosensitive drum 1, there is a charging corona discharger 2 that sequentially charges the photosensitive layer along the rotation direction of the photosensitive drum 1, and a developer that visualizes the electrostatic latent image formed on the photosensitive layer and turns it into a toner image. A device 3, a transfer corona discharger 4 for transferring the toner image formed on the photosensitive layer onto copy paper, a separation corona discharger 5 for separating the copy paper from the photosensitive drum 1, and a photosensitive layer after transfer. A device such as a cleaning device 6 is arranged to remove toner remaining on the surface.

Further, a paper feed cassette 7 containing copy paper p is installed on the right end side of the copying machine There is.

The copy paper p fed by the paper feed roller 8 is guided by a guide plate 9, passes through a conveyance roller 10, and reaches a conveyance roller 11. Copy paper p reaching conveyance roller 11
is sent to the photosensitive drum 1 by the conveying roller 11, where the toner image formed on the photosensitive layer is transferred onto copy paper p. The copy paper p that has been transferred from the photosensitive drum 1 is sent to the fixing roller 13 by the conveyor belt 12. This fixing roller 13
The fixed copy paper p is conveyed to a punching mechanism 15 by a conveyance roller 14. 34 is a cooling fan.

The copy paper p punched by the punching mechanism 15 is discharged to a copy tray 35 by a discharge roller 16. For example, the perforation of the copy paper p is performed in the conventional example (No. 5
This may be done before being fed into the photosensitive drum 1 as shown in the figure), but this will involve the generation of punch waste 18, so
In this embodiment, the punching mechanism 15 is provided after the transfer to ensure the quality of the copy.

Therefore, the structure of this punching mechanism 15 was
This will be explained with reference to FIGS. 2, 3, and 4.

This punching mechanism 15 includes a pair of punching pins 1
5a, a stopper 15b, and a sensor 15c for detecting copy paper p (shown only in FIG. 1 and omitted in FIGS. 2 to 4).

Operation switch (not shown) when drilling is required
By pressing , a circuit is formed that allows these punching mechanisms 15 to operate, and waits for the arrival of copy paper p.

The copy paper p fed into the punching mechanism 15 is detected by the sensor 15c, and the drive source 17 is turned on to move the stopper 15b of the punching mechanism 15 to the upper copy paper transport path as shown in FIG. This interrupts the transfer of the copy paper p.

Although the front end p ₁ of the copy paper p is caught in the stopper 15, the conveyance roller 14 continues to rotate, so the copy paper p forms a loop, and the front end p ₁ of the copy paper p is appropriately elastically held. is pressed against the stopper 15b.

At this point, a timing device (not shown) operates the punching pin 15a of the punching mechanism 15 to punch the copy paper p.

The loop formation of the copy paper p is performed at the front end of the copy paper p.
This is one measure taken to keep the position of the perforation from p ₁ accurate.

In order for the perforation position 15a to perforate the copy paper, the perforation pin 15a enters and retracts into the respective through holes 25a and 25b provided in the upper guide 24a and lower guide 24b that guide the copy paper p. Drilling is done.

When the protruding punching pin 15a returns to its original position as shown in FIG. 3, the stopper 15b subsequently returns to its original position, and the copy paper p is released from the blocking state, so that its front end _p1 advances forward. , the loop state is released and the normal state is restored, and the copy paper p is carried out of the copying machine X by the carry-out roller 16.

These series of operations, starting from the detection of the sensor 15c, of driving and restoring the stopper 15b and the punching pin 15a, are all appropriately performed by a timing device (not shown).

When the copy paper p is perforated by the aforementioned perforation pin 15a entering and retracting into the through holes 25a and 25b,
As a result, punch waste 18 is generated.

This punch waste 18 is removed from the punching mechanism 15.
The punch waste is dropped and stored in a punch waste box 20 located below.

On the other hand, as shown in FIGS. 2 and 3, a hammer arm 19a is attached to the stopper 15b of the punching mechanism 15, and the stopper 15b and the hammer 19 can move in a seesaw motion about the support shaft 19b. .

That is, as shown in FIG. 2, the stopper 15b is pushed up by the excitation of the electromagnetic solenoid 17a of the drive source 17.

At this time, the hammer 19 moves downward, that is, away from the punch waste box 20.

Next, as shown in FIG. 3, when the excitation of the solenoid stops, the stopper 15b is lowered by the restoring force of the spring 17b, and the punch waste box 20 is knocked with the hammer 19.

When the punch scrap box 20 is knocked, the vibration is transmitted to the punch scraps 18 deposited in the box 20, and the punch scraps 18 are piled up so that the piles collapse and the surface becomes substantially flat.

If this punch waste 18 is accumulated as it is without being subjected to vibration as in the conventional example,
Generally, it is approximately conical.

As is well known, in the case of a conical shape, the volume is only one-third that of a cylindrical shape with the same height and base area.

In this embodiment, the punch waste box 20 is
The hammer 19 connected to the punch box 20 causes vibration in the punch box 20, and the vibration flattens the pile of punch waste 18, thereby increasing the storage capacity of the punch waste 18 in the punch box 20. It is possible to increase the punch waste box 20 by approximately three times or to reduce the volume of the punch waste box 20 to approximately one third.

FIG. 4 shows another embodiment of the present invention, in which a cam 21 is arranged in place of the hammer 19 of the previous embodiment,
The drive source 17 drives the cam arm 21b downward about the cam axis 21a, and the stopper 1
5b from the transfer path and the cam 21
is rotated counterclockwise to knock the punch waste box 20 with the long diameter direction tip 21C of the cam 21, thereby flattening the punch waste 18 inside the box.

Next, to explain the operation of the punching copying machine having the above configuration, as shown in FIG. 11 to the photosensitive drum 1. The fed copy paper p is transferred, the transferred copy paper p is conveyed to a fixing roller 13 by a conveyance belt 12, and the copy paper p fixed by the fixing roller 13 is sent to a punching mechanism 15 by a conveyance roller 14.

When punching is required, the punching mechanism 15 becomes operational by pressing a separately provided switch (not shown), and when punching is not necessary, the punching mechanism 15 does not operate and the copy paper is p is ejected out of the machine as is.

When the punching mechanism 15 is ready to operate by pressing the switch, when the copy paper p arrives, the light sensor 15c detects it, and the drive source 17 and the timing device control the transfer path as shown in FIG. The leading end _p1 of the copy paper P is stopped by the stopper 15b which cuts in, and the copy paper P forms a loop while stabilizing the perforation position and performs a pair of perforations at accurate positions with the perforation pin 15a. Punch waste 18 generated by the punching falls and is stored in the punch waste box 20.

On the other hand, as shown in FIGS. 2 and 3, a hammer arm 19a of a hammer 19 is connected to the stopper 15b of the punching mechanism 15, and the stopper 15b and The hammer 19 can move up and down like a seesaw.

That is, when the arm 19a is attracted by the drive of the drive source 17, the stopper 15 is moved around the support shaft 19b.
b rises and cuts into the copy paper transport path, but the hammer 19 descends and leaves the punch waste box 20.

When the suction of the arm 19a is released, the spring 1
Due to the restoring force of 7b, the stopper 15b descends, and the hammer 19 rises and knocks the bottom of the punch waste box 20, and the punch waste 18 accumulated in the punch waste box 20 is flattened by the vibration.

[Effect of idea]

As mentioned above, in the present invention, a hammer that knocks the punch waste box of a copying machine equipped with a punch is connected to the punching mechanism, so that the punch waste box is knocked every time a hole is punched, and the vibrations cause the pile of punch waste to be knocked. Break it up and flatten the surface.

Therefore, the punch waste storage efficiency of the punch waste box is
This is approximately three times the improvement compared to the conventional method. In other words, the punch waste box can be one-third the size of the conventional one, which has the advantage of making it easier and more flexible to design a punch-equipped copier with the aim of increasing its functionality and making it more compact. .

[Brief explanation of the drawing]

FIG. 1 is a front internal explanatory view of an embodiment of the present invention;
Fig. 2 is a diagram showing a non-knocking state of a hammer according to an embodiment of the present invention, Fig. 3 is a diagram showing a knocking state of the same hammer, Fig. 4 is a diagram showing another embodiment, and Fig. 5 is a diagram of a conventional hammer. FIG. 6 is a front internal explanatory view of the example, and FIG. 6 is a side explanatory view of the punching mechanism in the same figure. p... copy paper, 15... punching mechanism, 17
...Drive source, 19...Hammer.

Claims (1)

[Scope of utility model registration request] a punching mechanism for punching a filing hole provided in the middle of a copy paper transport system; a punch waste box for storing punching waste generated by the punching mechanism; and a punch waste box connected to the punching mechanism;
In order to flatten the punch waste in the punch waste box,
A copying machine with a punch, which is equipped with a hammer for punching a punch waste box, and a drive source for driving the punch mechanism and the hammer.