JPH01213671A - Bookbinding device - Google Patents

Abstract

PURPOSE:To prevent the occurrence of the jamming of copying paper caused by lost driving by providing a detection means for detecting whether or not a fastening member is driven in an ejected copying paper group. CONSTITUTION:When the copying paper group 1-1 bound with the stapler needle 37 is fed, upper and lower conveying rollers 35 and 36 contact with the top and bottom parts of the stapler needle 37 which pierces through the copying paper group 1-1 and both rollers 35 and 36 are connected through the stapler needle 37. As a result, the lost driving can be detected because it is recognized that the stapler needle 37 is not driven in the copying paper group when the conveying rollers 35 and 36 are not connected. Whether the lost driving occurs or not can be easily and surely detected in such a manner. Thus, the idle driving of the stapler can be detected and the jamming of the copying paper caused by the lost driving can be prevented from occurring.

Description

Detailed Description of the Invention The present invention receives and conveys copy paper discharged from a copying machine, stacks the copy papers one after another, and staples the stacked copy paper groups. The present invention relates to a bookbinding device that binds a book by driving in a stopper member and then discharges the book.

Good 111 When a set of manuscripts consisting of multiple sheets is copied using a copying machine,
Conventionally, staplers (trade name: Stapler) are used to manually staple one corner or 2.3 points on the - side.

Recently, recycling automatic document feeders (RADF) have been used as part of office automation, in which a set of originals is automatically fed onto the contact glass of a copying machine. A single exposure is performed on a sheet of paper, the document is circulated a required number of times, and a series of copy sheets are continuously ejected from the copying machine in the required number of copies. Therefore, if a simple bookbinding machine that can automatically staple each set of copy paper that is continuously ejected is connected to the copy paper output port of a copying machine, the bookbinding work can be done manually. It is convenient because it does not take much time and the binding process is speeded up.

As a bookbinding device for this purpose, for example,
Publication No. 0-180893 discloses a receiving means for receiving copy paper ejected from a copying machine and transporting it forward; and an intermediate stacking means for stacking the copy paper received from the copying machine via the receiving means in the order in which it was received. A bookbinding device is disclosed that has a finishing means for binding and finishing a group of copy sheets stacked on the intermediate stacking means with a stapler, and a means for ejecting and stacking the group of copy sheets finished by the finishing means outside the machine. has been done.

However, in such a bookbinding apparatus, due to a malfunction such as a mistake in copy paper detection, the stapler may perform so-called blank stitching, in which the stapler drives the staple in a state where there is no copy paper.

If this is left unattended, continuous jamming of the driving needles may occur, and there is a possibility that copy paper may be jammed due to the empty driving needles.

In such a case, if it is possible to detect that the stapler is blank, it is possible to prevent the copy paper from jamming by, for example, stopping the drive of the bookbinding device. However, conventional bookbinding apparatuses are not provided with means for detecting blank printing.

1-Eave The present invention aims to solve the above-mentioned problems in the prior art and to provide a good bookbinding device that can prevent copy paper from jamming due to blank printing.

1- [In order to achieve the above object, the present invention has the following features: (1) Accepts and conveys copy paper discharged from a copying machine, stacks the copy papers one after another, and stops the stacked copy paper group with a steerer. A bookbinding device that binds and then discharges the sheets by driving in a member, characterized in that a detection means is provided for detecting whether or not a stopper is driven into the group of copy sheets to be discharged, 2) In addition to (1) above, the detection means includes a lower conductive member that contacts a stopper that is driven into the group of copy sheets on the ejection path side of the group of copy sheets; and an upper conductive member that contacts the stopper member driven into the seventh group of copies on the opposite side to the discharge road side, (3) (1) and (2) G above. In addition, when the detection means does not detect that a stopper member is driven into the copy paper group, at least the driving means of the conveyance means for receiving and conveying the copy paper is stopped. .

Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.

FIG. 1 is a schematic diagram showing the entirety of a bookbinding apparatus that aligns copy sheets discharged from a copying machine in page order, binds them, and discharges them. The copy paper 1 is conveyed by a driving conveyance roller 2 and a driven conveyance roller 3, passing between an upper guide plate 4 and a lower guide plate 5, and after passing through a driving sheet discharge roller 6 and a driven sheet discharge roller 7 according to paper size. , small size paper (B5, A4, etc.) is guided by the upper paper discharge guide plate 9 and the middle paper discharge guide plate 1o, passes through the small size side path A by the exit roller 8, and then the large size paper (B4, A3, etc.)
etc.) are guided by the switching guide plate 11, pass through path B, and are released onto the surface of the support plate 15. This copy paper l is transported by the feeding roller 13 and the conveying rollers 35 and 36 which are the upper and lower conductive members 1rtA constituting the detection means of the present invention.
The paper is transported to the paper positioning guide plate 14 by
After the sides are aligned by the side fences 12, they are stapled by the stapler 16. The conveyor belt 1 is rotated by a driving discharge roller 18 and a driven discharge roller 19.
7, the copy paper is ejected in the opposite direction to the direction in which it has traveled. Note that at this time, the conveyance rollers 35 and 36 are reversely rotated.

FIG. 2 shows the configuration of the feed roller 13. The feed roller 13 is
From the transmission drive pulley 23 through the feed roller drive shaft 20,
The feed roller drive pulley 21, which is integrated with the feed roller drive shaft 20, rotates the feed roller clockwise (in the direction of the arrow shown in FIG. 1) by the transmission belt 22. Further, the feed roller 13 is integrated with a feed roller connecting plate 24, and is connected to a solenoid 26 installed on a solenoid bracket 27 by a solenoid connecting plate 25. As a result, the feed roller 13 is brought into contact with the surface of the support surface 15 or lifted by the 0N10FF of the solenoid 26, as shown in FIG. Also, as a side fence, front side fence 1
2a and a rear side fence 12b, which are moved in the direction of the arrow shown in the figure by a stepping motor (not shown) in accordance with the paper size to align the vapor sides.

The support plate 15 is attached to a front side plate 28 and a rear side plate 29, on which the feed roller 13 is located, and the part where they are in contact is higher than the other surfaces.

FIG. 3 shows an example of a means for detecting a fastening member driven into a group of copy sheets according to the present invention, in which a group of copy sheets 1-1 has a stapler 37, which is a fastening member, driven in by a stapler 16. As described above, a pair of transport rollers 35 and 36 are provided in the discharge path through which the bound sheets are discharged. The upper conveyance roller 35 is urged downward by a pressure spring 38. Further, both the conveyance rollers 35 and 36 are made of conductive material. With such a configuration, the copy paper group 1-1 bound with the stapler 37
When the paper is fed, the upper and lower conveyance rollers 35 and 36 come into contact with the upper and lower parts of the stapler 37 that has passed through the copy paper group 1-1, respectively, and the rollers 35 and 36 are moved through the stapler 37. Conduct. As a result, when the conveyance rollers 35 and 36 are not electrically connected, the stapler 37 has not been driven into the group of copy sheets, and this is detected as blank firing. According to such a method, it is possible to easily and reliably detect whether or not blank firing has occurred.

FIG. 4 is an example of a circuit diagram of the bookbinding apparatus of the present invention. The detection unit 40 determines whether the copy paper group 1-1 has been stapled with the staples 37 or not.

The terminals Tx and 7r'z are connected to transport rollers 35 and 36, respectively, and both rollers 3 are connected to each other by a stapler 37.
When 5.36 becomes conductive, the terminals T1 and 72 are connected, and it is detected that the copy paper group 1-1 has been bound normally. In addition, T3 means the stapler 37, and actually the terminal 'rl
, T2 are not directly connected, but are shown in the circuit diagram for explanation.

In this embodiment, the signal detected in this way is I10
The data is input to the CPU 42 through the interface. C.P.
In this embodiment, it is determined whether the state of the input port is "H" or "L".In this embodiment, it is detected that "H" is a blank shot and "L" is a normal shot.

Next, in this embodiment, when dry firing is detected, the CPU
A signal to stop the main motor 41 etc. is sent from the main motor 41 via the driver, thereby stopping the drive of the bookbinding device. As a result, it is possible to reliably prevent the occurrence of copy paper jams without causing continuous jams of blank staples.

In the above description, the detection means for detecting an empty needle is constructed by providing the conveyance rollers 35 and 36, but for example, instead of the lower roller 36, the side fence 12a may be used.
The present invention can also be applied to other detection means, such as providing a conductive part in , 12b or using a non-contact type detection means.

Further, in this embodiment, when blank printing is detected, the drive of the bookbinding device is stopped, but for example, an alarm is issued, the drive is stopped only when blank printing is performed continuously, or the copying machine is also stopped. There are various means, and the present invention can be applied to any of them.

ST-1 As described above, according to the present invention, by detecting whether or not a stopper member is driven into a group of copy sheets to be ejected, it is possible to detect the presence or absence of blank firing of the stapler, and to prevent blank firing. It is possible to prevent copy paper from jamming due to In addition, in the invention of claim 2,
It is possible to reliably detect whether or not the stopper member has been driven in by a simple method, and the invention according to claim 3 reliably prevents the occurrence of copy paper jams without causing continuous jams of blank flashing needles. can do.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing the overall configuration of a bookbinding device according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of its feeding roller section, Fig. 3 is a sectional view of its stop member detection section, and Fig. 4 FIG. 2 is a circuit diagram showing an example of control. 1... Copy paper, 1-1... Copy paper group, 35...
- Conveyance roller (upper conductive member), 36... Conveyance roller (lower conductive member), 37... Stapler (
(stopping member), 40... detection unit (detection means), 41... main motor (drive means)

Claims (3)

[Claims] (1) Accepts and transports copy paper ejected from the copying machine,
In a bookbinding device that sequentially stacks the copy papers and binds the stacked copy paper groups by driving a stopper member with a stapler and then discharges them, a stopper member is driven into the ejected copy paper group. A bookbinding device characterized in that it is provided with a detection means for detecting whether or not the paper is printed. (2) The detection means includes a lower conductive member that contacts a stopper driven into the copy paper group on the side of the ejection path of the group of copy sheets, and a lower conductive member that is opposite to the side of the ejection path of the group of copy sheets. 2. The bookbinding apparatus according to claim 1, further comprising an upper conductive member that contacts a stopper member driven into the group of copy sheets on a side thereof. (3) A claim characterized in that when the detection means does not detect that a stopper member is driven into the copy paper group, at least the driving means of the conveyance means for receiving and conveying the copy paper is stopped. The bookbinding device according to item 1 or 2.