JPH0790675B2 - Bookbinding device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a bookbinding apparatus for binding a plurality of sheets of paper to a binder for bookbinding.

[Conventional technology]

As a device for binding a plurality of sheets of paper to a binder for bookbinding, a bookbinding device as shown in FIGS. 6 and 7 is provided. The binder 40 used in this bookbinding device is
Electric heating element 42 on the inner surface side of spine cover 41 and an adhesive covering it
Has 43. Further, a pair of electrodes 44 are provided on both ends of the electric heating element 42, and the electrodes 44 are exposed on the outer surface (lower surface in the figure) of the spine cover 41.

A bookbinding device 46 that performs bookbinding using such a binder 40.
Is a binder loading part 47 into which the binder 40 is inserted.
have. At the bottom of the binder loading portion 47, there is a pair of terminal electrodes 48 that come into contact with the electrodes 44 of the binder, and an electric current is supplied to the electric heating element 42 via the terminal electrodes 48. There is.

When binding is performed, the binder 40 is inserted into the binder loading portion 47, and the electric heating element 42 is inserted through the electrodes 44 and 48.
Supply current to the. As a result, the adhesive 43 is heated and melted, one end of the paper 45 is adhered to the binder 40, and bookbinding is performed.

[Problems to be Solved by the Invention]

In the conventional manufacturing apparatus 46, in order to sufficiently heat and melt the adhesive 43, the binder 40 is added to the binder loading section.
When inserted in 47, it is important that the electrode 44 of the binder and the terminal electrode 48 be in close contact with each other. However, in the conventional bookbinding apparatus, when bookbinding is not performed, foreign matter such as dust or paper dust may enter the inside from the insertion port of the binder and adhere to the terminal electrode 48. When foreign matter adheres to the terminal electrode 48, contact failure occurs between the binder electrode 44 and the terminal electrode 48, which causes uneven heating or insufficient heating of the adhesive.

In particular, when the binder insertion port is in the upper position and is used by being attached to the main body of the copying machine,
It is easy for foreign matter to enter the bottom of the binder loading section, and it is very difficult to remove the foreign matter once entered.

An object of the present invention is to provide a bookbinding apparatus that can prevent foreign matter from entering the bottom of the binder loading unit and that is unlikely to cause electrode contact failure.

[Means for Solving the Problems]

A bookbinding device according to a first aspect of the invention is a device that performs bookbinding using an electric heating element and a binder having an electrode for supplying an electric current to the electric heating element. Further, it is provided with a binder loading section and an inner lid.

The binder loading part has a binder insertion port on one end side and a terminal electrode capable of contacting with the binder electrode on the other end side. Further, the inner lid is provided inside the binder loading portion so as to be openable and closable above the terminal electrode.
Then, when the binder is not inserted, the terminal electrode is in a closed position, and when the binder is inserted, the electrode of the binder is in an open position that allows the electrode to contact the terminal electrode and supports the binder side portion.

The bookbinding device according to the second aspect of the invention includes a binder loading section and an inner lid.

The binder loading section has an insertion opening into which a binder for bookbinding is inserted at one end side, an accommodating section for accommodating the binder for bookbinding, and an opening communicating with the accommodating section at a side portion. The inner lid is openably and closably provided inside the binder loading section. When the binder for bookbinding is not inserted into the bookbinding unit, the binder is arranged so as to form a passage between the binder and the opening of the accommodating unit and cover the bottom of the binder loading unit.

[Action]

In the first aspect of the invention, the inner lid is openably and closably provided above the terminal electrode of the binder loading portion. This inner lid is
When the binder is not inserted, it is in a closed posture that covers the terminal electrodes. Therefore, even if a foreign substance enters from the insertion port of the binder, it is possible to prevent the foreign substance from adhering to the terminal electrode, and prevent contact failure of the electrode portion.

Further, when the binder is inserted, the inner lid is in the open posture, and the electrode of the binder comes into contact with the terminal electrode of the binder loading section. As a result, electric current is supplied to the electric heating element of the binder. Further, when the inner lid is in the open position, it supports the binder side portion. Therefore, the posture of the binder in the binder loading portion is stable, and the contact of the electrode portion is ensured.

In the second aspect of the invention, an opening communicating with the binder accommodating portion is formed in the side portion of the binder loading portion. Further, an inner lid is provided inside the binder loading portion so as to form a passage between the storage portion and the opening. Therefore, the foreign matter that has entered from the binder insertion port is discharged from the opening through the main part and the inner lid, and does not enter the bottom part of the binder loading part. Therefore, even when the terminal electrode is provided on the bottom of the binder loading portion, foreign matter does not adhere to the terminal electrode. On the other hand, when the binder is inserted, the inner lid is opened and the binder enters the bottom of the binder loading section.

〔Example〕

4 and 5 show a copying machine in which the bookbinding apparatus according to the embodiment of the present invention is mounted.

In the figure, a document table 2 is fixed on the upper surface of the copying machine body 1, and a document holder 3 is arranged on the document table 2 so as to be openable and closable. A paper feed tray 4 and a paper feed cassette 5 are detachably mounted on the right side of the copying machine body 1 in the figure.
On the left side of the copying machine main body 1 in the drawing, a paper discharge tray 6 for discharging copied paper is mounted.

An exposure device 7 for reading a document is provided above the copy machine main body 1. This exposure device 7
Is composed of a light source, a mirror, and the like. An image forming unit 8 is provided in the center of the copying machine body 1.
At the center of the image forming unit 8, a photosensitive drum 9 on which an electrostatic latent image is formed is arranged. Around the photosensitive drum 9, a main charger 10, a developing device 11, a transfer charger 12, a separation charger 13, a cleaning device 14 and the like are arranged. Between the paper feed tray 4 and the paper feed cassette 5 and the image forming unit 8, a paper feed conveyance path 15 including a plurality of conveyance rollers is provided. Further, between the image forming unit 8 and the paper discharge tray 6,
A paper discharging and conveying device 16 and a fixing device 17 are arranged.

A bookbinding device 30 is provided above the right side of the copying machine body 1. The bookbinding device 30 has a binder loading unit 31 into which a binder is inserted. As shown in FIG. 3A, the binder loading section 31 is composed of a first case 32 fixed to the main body 1 of the copying machine by screws and a second case 33 fixed to the first case 32 with screws. . The upper end of the binder loading portion 31 is opened to serve as an insertion opening 34 for inserting the binder. In addition, a storage portion 35 that stores a binder is formed inside. Further, the second case 33 is formed with a discharge port 33a which communicates with the accommodation portion 35.

At the bottom of the binder loading section 31, a pair of terminal electrodes 36 are provided on the back side and the front side (see FIG. 2) of the device. The terminal electrode 36 is arranged so as to come into contact with the electrode 44 of the binder 40.

An inner lid 37 is provided above the terminal electrode 36. Inner lid
One end of 37 is supported by the first case 32 so as to be openable and closable. And, it is always biased counterclockwise by a biasing member such as a spring. The other end of the inner lid 37 abuts on a stopper portion 33b formed in the lower portion of the discharge port 33a of the second case 33, and the counterclockwise rotation is restricted. Thus, the inner lid 37
Can take the closed position shown in FIG. 1A and the open position shown in FIG. 1B. Then, in the closed posture, the tip end side that abuts the stopper portion 33b is in a posture in which the tip end portion is positioned downward in proportion to the support portion side, and forms the passage 38 that connects the storage portion 35 and the discharge port 33a. ing.

2 and 3 show details of the supporting portion of the terminal electrode 36 of the binder loading portion 31.

The terminal electrode 36 has a horizontal support portion 36a, a vertical support portion 36b, and a contact portion 36c that contacts the electrode 44 of the binder 40. The horizontal support portion 36a and the vertical support portion 36b are respectively the second
The notches 29a and 29b formed in the rib 29 of the case 32 are engaged with the notches 29a and 29b, respectively, whereby the terminal electrode 36 is fixed. Also, the other end 28 of the horizontal portion of the other rib 28 of the first case 32
a and a lower end 28b of the vertical portion projecting downward from the horizontal portion are in contact with the vertical support portion 36b and the horizontal support portion 36a of the terminal electrode 36, respectively, thereby preventing the terminal electrode 36 from rotating. is doing. As shown in FIG. 3, the contact portion 36c
In the state where the electrode 44 of the binder 40 is not in contact,
Inclined so that the outer edge is upward. Then, when the binder 40 is inserted into the binder loading portion 31, the contact portion 36c is elastically deformed to be in a substantially horizontal state as shown by a dashed line in the figure. In addition, the horizontal support portion of the terminal electrode 36
The plug 27 is inserted into 36a, which causes the terminal electrode 36
A voltage can be applied to.

As shown in FIG. 4, an operation panel 20 is arranged on the front side of the upper surface of the copying machine main body 1. Operation panel 20
Print key 2 for instructing the start of the copy operation.
2, numeric keypad 23 to specify the number of copies, bookbinding device 30
A heating display lamp 24 for displaying the heating operation state of the above, a cooling display lamp 25 for displaying the cooling state thereof, and the like are provided.

In the bookbinding operation in this embodiment, the binder 40 shown in FIG. 6 is used as in the conventional case.

In the copying machine with the bookbinding device having the above structure, the copying operation is performed in the same manner as the conventional copying machine.

On the other hand, in the bookbinding device 30, since the binder insertion opening 34 is opened upward, foreign matter such as dust easily enters through the binder insertion opening 34. However, when the bookbinding is not performed, the middle plate 37 is biased counterclockwise by the biasing member,
The terminal electrode 36 is covered in the closed posture as shown in FIG. 1A. Further, since the inner lid 37 forms a passage 38 that connects the accommodating portion 35 and the discharge port 33a, the foreign matter that has entered the accommodating portion 35 is discharged to the outside through the inner lid 37 and the discharge port 33a.

In the above apparatus, the bookbinding apparatus 30 can perform bookbinding on the copied sheets obtained by the copying machine. In this case, as shown in FIG. 6, the paper 45 is stored in the binder 40, and one end of the paper 45 is attached to the adhesive 43 on the spine cover 41.
Contact. Then, the binder 40 is folded and inserted into the binder loading unit 31. Then, the spine cover 41 of the binder 40 contacts the inner lid 37, and the binder 40 is inserted further downward, whereby the inner lid 37 rotates clockwise against the urging force of the urging member. And the binder 40 is the first
As shown in FIG. 1B, when the bottom of the binder loading portion 31 is reached, the electrode 44 of the binder 40 and the terminal electrode 36 come into contact with each other.
As a result, the pair of terminal electrodes 36 are electrically connected via the electrode 44 and the electric heating element 42.

Here, the contact portion 36c of the terminal electrode 36, as described above,
It is arranged so as to be inclined slightly upward from the horizontal state. Therefore, the electrode 44 of the binder 40 contacts the terminal electrode 36,
When the contact portion 36c is horizontal, the terminal electrode 36 always has an elastic force acting upward. Therefore, both electrodes 44,36
Firmly adheres to each other, and a good adhesion state can be obtained. Also,
In the state where the binder 40 is set as shown in FIG. 1B, the binder 40 is pushed and supported by the inner lid 37 in the right direction in the figure at a portion near the terminal electrode 36. Therefore,
The posture of the binder 40 is stabilized, and the contact between the electrode 44 and the terminal electrode 36 is ensured.

The binder 40 is inserted into the binder loading section 31, and the electrode
When it is detected that 44 contacts the terminal electrodes 36, a current flows between the pair of terminal electrodes 36. As a result, the electric heating element 42 of the binder 40 generates heat and the adhesive 43 is melted. As a result, the adhesive 43 adheres one end of the paper 45 to the binder 40.

At the time of heating during the bookbinding operation, the heating display lamp 24 on the operation panel 20 of the copying machine body 1 is turned on. When heating is over, the heating indicator lamp 24 turns off and the cooling indicator lamp
25 lights up. Then, when the cooling is completed, the cooling display lamp 25 is turned off.

When it becomes necessary to replace the terminal electrode 36 due to long-term use, the screws are first loosened and the second case 33 is removed from the first case 32. Then, the terminal electrode 36 is attached to the first case 32.
Remove from rib 29 of. Then, plug the terminal electrode 36 into the plug 27
And replace it with a new terminal electrode.

Thus, the terminal electrode 36 can be easily removed from the rib 29 of the first case 32, and the maintenance of the terminal electrode 36 becomes very easy.

[Other Examples]

 (A) Another embodiment is shown in FIGS. 8A and 8B.

In this embodiment, a portion of the upper surface of the inner lid 50, which corresponds to a portion directly below the accommodating portion 35, that is, when the binder 40 is inserted,
Notch 50a is formed in the portion of binder 40 where spine cover 41 abuts.
Are formed. Since the cutout 50a is formed, the spine cover 41 of the binder 40 first comes into contact with the cutout 50a when the binder 40 is inserted, whereby the inner lid 50 rotates smoothly. Notch 50a
If is too large, the foreign matter that has fallen into the storage portion 35 may not be discharged to the discharge port 33a side, so it is necessary to make the size appropriate.

(B) Another embodiment is shown in FIGS. 9A and 9B.

In this embodiment, on the upper surface of the inner lid 51, the above-mentioned FIG. 8A and FIG.
A rib 51a is formed so as to project for the same purpose as in the illustrated embodiment. The rib 51a is formed at a plurality of positions in the front-rear direction. Of course, it may be formed continuously. Also in such an embodiment, FIG. 8A and FIG.
Similar to the illustrated embodiment, the inner lid 51 can be smoothly rotated.

(C) In the above embodiment, the case where the bookbinding apparatus of the present invention is mounted on the copying machine has been described, but it can be mounted on another machine and used, or can be used alone.

〔The invention's effect〕

As described above, according to the first aspect of the present invention, since the openable and closable inner lid is provided inside the binder loading section, foreign matter is provided on the bottom of the binder loading section by the inner lid when bookbinding is not performed. It can be prevented from adhering to the electrodes. Also,
Since the inner lid supports the side portions of the binder when the binder is inserted, the posture of the binder is stable during bookbinding, and the contact state at the electrode portion is good.

Further, in the second invention, since the opening is provided in the side portion of the binder loading portion and the inner lid that forms the passage between the binder storage portion and the opening when the binder is not inserted is provided, bookbinding is performed. It is possible to prevent foreign matter from entering the bottom of the binder loading portion when not in use, and to discharge the foreign matter to the outside of the apparatus through the opening.

[Brief description of drawings]

FIG. 1A is a vertical sectional view of a bookbinding apparatus according to an embodiment of the present invention,
FIG. 1B is a vertical sectional view showing a state where a binder is inserted into the bookbinding apparatus, FIG. 2 is a sectional partial view showing a supporting structure of a terminal electrode of the bookbinding apparatus, and FIG. 3 is a partially enlarged view thereof. Four
FIG. 7 is a perspective view of a copying machine equipped with the bookbinding device, FIG. 5 is a sectional configuration diagram thereof, FIG. 6 is a view showing a state of use of a conventional bookbinding device, FIG. 7 is a longitudinal sectional view thereof, and 8A. FIGS. 8A and 8B are views corresponding to FIGS. 1A and 1B of another embodiment, FIGS. 9A and 9B are views corresponding to FIGS. 1A and 1B of yet another embodiment. . 30 ... Bookbinding device, 33a ... Ejection port, 34 ... Binder insertion port, 35 ... Storage part, 36 ... Terminal electrode, 37, 50, 51 ... Inner lid, 40 ... Binder.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Sho 61-41261 (JP, U) Rikai Hei 3-52170 (JP, U) Rikai Hei 3-52171 (JP, U)

Claims (2)

[Claims] 1. A bookbinding apparatus for performing bookbinding using a bookbinding binder having an electric heating element and an electrode for supplying an electric current to the electric heating element, wherein a binder insertion port is provided on one end side and a binder insertion port is provided on the other end side. A binder loading part having a terminal electrode capable of abutting the electrode of the binder, and a closed posture provided inside the binder loading part so as to be openable and closable above the terminal electrode and covering the terminal electrode when the binder is not inserted. A bookbinding apparatus comprising: an inner lid that allows the electrodes of the binder to come into contact with the terminal electrodes when the binder is inserted and is in an open posture that supports the side portions of the binder. 2. An insertion opening into which a binder for bookbinding is inserted at one end side, and an accommodating portion for accommodating the binder for bookbinding therein.
A binder loading part having an opening communicating with the accommodating part at a side portion, and a binder loading part that is openably and closably provided in the binder loading part and is between the accommodating part and the opening when the bookbinding binder is not inserted in the accommodating part. A bookbinding device comprising: an inner lid arranged so as to form a passage of the above and covering a bottom portion of the binder loading portion.