JPH0577579A - Bookbinding device - Google Patents

Abstract

PURPOSE:To arrange sheets automatically by introducing a binder under a state where the non-pressed rotating areas of paired rotors are oriented toward the introduction path side of the binder, and allowing the non-pressed rotating area of one rotor to face the binder when pressing the binder by the pressed rotating area of the other rotor using the rotary drive of the paired rotors. CONSTITUTION:The semi-circumferential plane parts, that is, the non-pressed rotating areas of paired rotors 13a, 13b are set to a rotating position (home position) oriented for a binder. Next, the binder holding a sheet is introduced into a binder introduction chamber 12 from an introduction aperture 12 under the above state. If the binder is introduced upto the bottom of the binder introduction chamber 12, the rotor 13a is activated to rotate using a stepping motor 16, and rotating the rotor 13a is delayed by a rotary phase of 180 deg. through a clutch 19 to cause the rotation of the other rotor 13b. If the pressed rotating area of one of the rotors 13a, 13b presses the binder, the other non-pressed rotating areas of the rotors 13a, 13b are allowed to face the binder alternately so that sheets are arranged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bookbinding apparatus for binding a sheet of paper to the inside of the spine cover of a binder inserted into an insertion chamber with a plurality of sheets of paper sandwiched between them for bookbinding.

[0002]

2. Description of the Related Art Recently, an image forming apparatus incorporating a bookbinding apparatus has been developed. In the bookbinding apparatus in this case, as shown in FIG. 4, the binder 6 sandwiching a plurality of sheets of paper 10 is inserted into the binder insertion chamber 12, and the electrode 9 arranged at the lower portion of the binder insertion chamber 12 moves the binder back cover 6a. Power is supplied to the electric heating element 8 arranged on the inner surface side of the electric heating element 8 to heat the electric heating element 8, and the adhesive 7 applied on the electric heating element 8 is heated and melted, so that the paper 10 is bound with the binder spine cover 6a. The inner surface of the above is bonded and dried to be bound into a book.

[0003]

However, in the case of the above-described conventional bookbinding apparatus, an operator manually inserts a plurality of sheets 10 into a binder 6 and inserts them in the binder insertion chamber 12. Therefore, there is a problem that it takes time to align the paper 10 with each other.

In view of the above-mentioned conventional drawbacks, the present invention provides a bookbinding apparatus capable of automatically aligning sheets sandwiched between binders for bookbinding.

[0005]

In order to achieve the above object, the present invention provides a binder that is inserted with a plurality of sheets sandwiched in an insertion chamber vertically arranged from an upper insertion port. In the bookbinding device that holds and holds the binder on the inner surface of the spine, the bookbinding device performs a rotation that is divided into a pressing rotation area that can press against the binder and a non-pressing rotation area that does not hit the binder. A pair of bodies
They are placed on both sides of the binder in the insertion chamber so that they can rotate about a horizontal axis of rotation with different height positions, and when the binder is inserted into the insertion chamber, the pair of rotating bodies are rotated without pressing them. When the area is set to the rotational position facing the binder, and the insertion of the binder is completed, the pair of rotating bodies are arranged so that when the non-pressing rotating peripheral area of one rotating body faces the binder, the pressing rotating circumference of the other rotating body is set. It is characterized in that a rotation driving means for rotating the phase in different rotation phases is provided so that the region presses the binder.

[0006]

According to the above structure, when the binder is inserted into the insertion chamber from the insertion opening with the non-pressing rotation peripheral region of the pair of rotating bodies facing the insertion path side of the binder, By the rotation drive, a state in which the pressing rotation peripheral area of one rotating body presses the binder and the non-pressing rotation peripheral area of the other rotating body faces the binder is alternately repeated. As a result, the curved deformation of the binder is repeated, and as a result, the papers sandwiched by the binder are automatically aligned.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway perspective view showing the structure of a bookbinding apparatus A according to the present invention, and FIG. 2 is a perspective view showing an electrostatic photocopier which is an example of an image forming apparatus in which the bookbinding apparatus A is incorporated. In FIG. 2, 1 is a copying machine main body, 2 is a document holder,
Reference numeral 3 is a paper feed cassette, 4 is a manual paper feed tray, and 5 is a paper discharge tray. Reference numeral 6 is the same binder as that described in FIG. 4, and has an electric heating element with an adhesive (not shown) on the inner surface side of the spine cover 6a. Reference numeral 10 is a plurality of sheets sandwiched by the binder 6.

The structure of the bookbinding apparatus A is as follows.
That is, as shown in FIGS. 1 and 2, an insertion opening 11 for inserting and removing the binder 6 is provided on the right side of the copying machine main body 1.
A binder insertion chamber 12 having an opening at the top is formed vertically. On both sides of the binder insertion chamber 12, a pair of rotating bodies 13a and 13b having a half-moon-shaped cross section sandwich the binder 6 to be inserted at different heights, and a horizontal rotating shaft 14 is provided.
It is arranged to be rotatable around a and 14b.
In addition, windows 15 are formed in the wall portions on both sides of the binder insertion chamber 12 so that the rotating bodies 13a and 13b are exposed in the binder insertion chamber 12. Binder insertion chamber 12
An electrode 9 for supplying power to an electric heating element (not shown) on the inner surface side of the back cover 6a of the binder 6 is provided in the lower part of the.

The rotating bodies 13a and 13b are rotationally driven, for example, using a stepping motor 16 as a rotational drive source. That is, the rotating shaft 14a of the one rotating body 13a is connected to the output gear 17a.
The rotating shaft 14b of the other rotating body 13b is connected to the output gear 17b via the clutch 19, and the input gear 20 connected to the output shaft 18 of the stepping motor 16 is meshed with the output gears 17a and 17b. ing. Further, a sensor (not shown) for detecting a home position which is a reference of a rotational position of the rotary body 13a is provided around the rotary shaft 14a of the one rotary body 13a and around the rotary shaft 14a.

Next, the operation of the bookbinding apparatus A will be described with reference to FIG. In the binder insertion chamber 12 before the binder 6 is inserted, as shown in FIG. 3 (A), the pair of rotating bodies 13a, 13b hits the flat half-parts, that is, the binder 6 being inserted. The non-pressing rotation peripheral area b is set to the rotation position (home position) that faces the binder 6, whereby the binder insertion chamber is set.
The inside of 12 is in a state where the binder 6 can be inserted without being hindered by the rotating bodies 13a and 13b.

In this state, the binder 6 sandwiching the paper 10
Is inserted into the binder insertion chamber 12 through the insertion port 11. When the binder 6 is inserted to the lower part of the binder insertion chamber 12, the stepping motor 16 rotationally drives the rotating bodies 13a and 13b. That is, for example, the clockwise rotation of the stepping motor 16 causes each output gear 17 to pass through the input gear 20.
a, 17b, the rotation of the output gear 17a is directly transmitted to one of the rotating bodies 13a, and the rotation of the output gear 17b is the clutch.
It is transmitted to the other rotating body 13b via 19.

In the transmission of rotation to the rotating body 13b, when the other rotating body 13a rotates 180 degrees from the home position, the clutch 19 connects the rotating body 13b and the output gear 17b. That is, from the state shown in FIG. 3 (A), the rotation of the rotary body 13a is started first, and the rotation phase of 180 ° is delayed from this, and the rotation of the other rotary body 13b is started.

As a result, FIG. 3 (B) and FIG. 3 (C)
As shown in FIG. 1, in one of the rotating bodies 13a and 13b, the semicircular portion thereof, that is, the pressing rotation peripheral area a where the binder 6 can be pressed
When the binder 6 presses the binder 6, the other half of the rotators 13a and 13b is the other semicircular portion, that is, the non-pressing rotation peripheral region b that does not hit the binder 6 faces the binder 6, and the rotators 13a and 13b. Alternated between.
As a result, in the binder insertion chamber 12, the operation in which the binder 6 is sandwiched between the rotating bodies 13a and 13b to be curvedly deformed is repeated, and the sheets 10 sandwiched by the binder 6 are aligned.

When the paper alignment operation is completed, the rotating bodies 13a and 13b are rotated by their pressing rotation peripheral regions a pressing the binder 6 by the rotational driving of the stepping motor 16 and the engagement / disengagement control of the clutch 19. Set to position. As a result, as shown in FIG. 3D, the binder 6 is sandwiched between the pressing rotation peripheral region a of the rotating bodies 13a and 13b and the wall portion of the binder insertion chamber 12, and the spine 6a of the binder 6 is inserted into the binder insertion chamber.
12 Fixed so as to be in contact with the bottom electrode 9.

In this fixed state, electric power is supplied from the electrode 9 in the lower part of the binder insertion chamber 12 to an electric heating element (not shown) on the inner surface side of the binder spine cover 6a.
The adhesive applied to the inner surface side of the spine cover 6a is heated and melted, and the paper 10 sandwiched between the binders 6 becomes the binder 6.
Is adhered to the inner surface side of the spine cover 6a. That is, the bookbinding process is performed.

When bookbinding is completed, a stepping motor
16 is rotationally driven, and the pair of rotating bodies 13a and 13b are set to the original rotational position (home position) in which their planar half-circumferential portions, that is, the non-pressing rotational peripheral region b, both face the binder 6. As a result, the fixing of the binder 6 by the rotating bodies 13a and 13b is released. In this state, the binder 6 is extracted from the binder insertion chamber 12.

In the paper alignment operation in FIG. 3,
From the rotational positions of the respective rotating bodies 13a and 13b shown in FIG. 3 (B),
By controlling the engagement / disengagement of the clutch 19, only the rotation of one of the rotating bodies 13a is advanced by 180 ° as shown by the chain double-dashed line so that the pressing rotation peripheral area a of the pair of rotating bodies 13a and 13b is the binder 6
The binder 6 may be pressed into contact with the binder 6, and the binder 6 may be curved and deformed into an S-shape as shown in FIG. Similarly, each rotating body 13
Even when the rotational positions of a and 13b are in the state of FIG. 3 (C), the rotation of one of the rotating bodies 13b is advanced by 180 ° as indicated by the chain double-dashed line by the engagement / disengagement control of the clutch 19. The binder 6 may be curved and deformed into an S shape.

Further, in the above embodiment, the rotating bodies 13a, 13b.
Is shown as a half-circle with a semi-circular pressing rotation peripheral area a and a half-circular shape with the remaining half circumference being a planar non-pressing rotation peripheral area b. The surroundings of the pressing rotation peripheral region and the non-pressing rotation peripheral region are not limited to the above-mentioned half-moon-shaped division, and a slight rotation peripheral region of 360 ° is applied to the pressing rotation peripheral region and the remaining rotation peripheral region is set. All may be non-pressing rotation peripheral regions. Further, the shapes of the rotating bodies 13a and 13b are not limited to the half-moon shape, and may be, for example, elliptical, and the major axis side peripheral area thereof may be the pressing rotational peripheral area and the minor axis side peripheral area thereof may be the non-pressing rotational peripheral area.

[0019]

According to the present invention, which has the above-mentioned structure, the binder is inserted into the insertion chamber from the insertion opening in a state where the non-pressing rotation peripheral region of the pair of rotating bodies faces the insertion path side of the binder. Due to the rotation of the rotating body, the pressing rotation peripheral area of one rotating body presses the binder, and the non-pressing rotation peripheral area of the other rotating body faces the binder. By repeatedly bending and deforming the binder, the sheets sandwiched by the binder can be automatically aligned.

[Brief description of drawings]

FIG. 1 is a perspective view showing a bookbinding apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view of an image forming apparatus incorporating the bookbinding apparatus.

FIG. 3 is an explanatory diagram showing the operation of the bookbinding apparatus.

FIG. 4 is an explanatory diagram of a conventional bookbinding apparatus.

[Explanation of symbols]

6 ... Binder, 6a ... Back cover, 10 ... Paper, 11 ... Inserting port, 12 ... Inserting chamber, 13a, 13b ... Rotating body, 16 ... Rotation drive means

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Masanobu Takahashi 1-2-2 Tamatsukuri, Chuo-ku, Osaka City, Osaka Prefecture Mita Kogyo Co., Ltd. No. 28 Mita Industry Co., Ltd. (72) Toru Katamoto 1-2-2 Tamatsukuri Chuo-ku, Osaka City, Osaka Prefecture Mita Industry Co., Ltd.

Claims (1)

[Claims] 1. A bookbinding process in which a binder inserted with a plurality of sheets sandwiched therein is held in an insertion chamber vertically arranged from an upper insertion port, and the sheets are adhered to the inner surface side of the binder spine cover. In the bookbinding device that performs the above, a pair of rotating bodies, which are divided into a pressing rotation peripheral area that can press the binder against the binder and a non-pressing rotation peripheral area that does not contact the binder, are arranged around the horizontal rotation axis with different height positions. Arranged on both sides sandwiching the binder in the insertion chamber so as to be rotatable, and when the binder is inserted into the insertion chamber, the pair of rotating bodies are set in a rotation position where their non-pressing rotation peripheral regions face the binder. When the insertion of the binder is completed, the pair of rotating bodies are pressed so that when the non-pressing rotation area of one rotating body faces the binder, the pressing rotation area of the other rotating body presses the binder. A bookbinding device, characterized in that a rotation driving means for rotating the rotation phase is provided in the bookbinding device.