JPH06238967A - Printer for bankbook and the like - Google Patents

Abstract

PURPOSE:To provide printer of a bankbook and the like which can print right and left page spread bankbooks having different width sizes along a back surface by pressing a platen. CONSTITUTION:A sleeve shaft 37 is rotated by rotating a motor 18, an eccentric sleeve 20 is rotated, a left platen 9 and a right platen are pressed by springs 36 to support opened right and left pages of a bankbook 1 or the like, the vicinity of a binding seam of the bankbook is pressed by the plurality of the divisional platens, thereby printing the bankbook to comply with the position of the seam due to difference of widths of the bankbooks.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing device for printing on left and right open passbooks having a stitch, and more particularly to a passbook printing device capable of printing on a plurality of types of passbooks having different widths. .

[0002]

2. Description of the Related Art In a conventional passbook printing apparatus, a passbook to be printed is a platen which is opened at the left and right sides of the binding and is divided by a binding portion. A so-called divided platen system that supports and prints is used. This passbook printer is disclosed in, for example, Japanese Patent Laid-Open No.
As described in Japanese Unexamined Patent Publication No. 3-179771, a first platen that supports the left open page, a second platen that supports the right open page, and a third platen that supports the binding of passbooks are spring-loaded. By supporting and pressing the passbooks on these platens with a paper guide, each platen is positioned vertically by a spring according to the paper thickness depending on the opening degree of the passbooks, and the passbooks are placed between the paper guides. It is sandwiched between the two, and the characters are printed in the direction perpendicular to the stitch while maintaining the parallelism of the printing surface.

[0003]

The passbook printer according to the above-mentioned prior art is capable of printing passbooks having a fixed width and a fixed stitch position by supporting them with the left and right platens. If you try to print different passbooks, the passbook transport position is transported based on the passbook end, so the stitches are different from the platen position that supports the stitches at the specified position, and the left and right platens work normally. There was a problem that printing could not be performed while supporting the.

An object of the present invention is to eliminate the above-mentioned problems caused by the prior art, and to print passbooks having different thicknesses in the row direction, such as passbooks with left and right opening, even for passbooks having different widths. It is to provide a passbook type printing device that can be used.

[0005]

In order to achieve the above object, a passbook printing apparatus according to the present invention supports a left platen for supporting the left open back side of left and right open passbooks and a right open page for backside passbooks. The right platen, a plurality of divided platens located near the left and right open pages and independently movable up and down, a reference guide on which the left and right open pages are pressed by the left and right and divided platens, and the platens are moved up and down. A first feature is that the system includes a platen drive mechanism that abuts an open page of a passbook against the reference guide.

Further, in the passbook printing apparatus according to the present invention, the platen drive mechanism has a sleeve shaft rotated by a motor, a tension bush rotated in synchronization with the shaft, and the tension bush and the engaging portion. And a plurality of eccentric sleeves that are engaged by cam springs and are eccentrically rotated with respect to the sleeve shaft, and a plurality of first platen arms that support the plurality of eccentric sleeves so as to abut the left and right platens. And a second platen arm that supports a divided platen lifted by upward movement of the first platen arm.

[0007]

In the passbook printer according to the first feature, the platen drive mechanism causes the left and right platens to contact the reference guides according to the thickness of the left and right open pages of the passbook, and the passbooks among the plurality of divided platens. By operating the divided platens up and down according to the binding position, it is possible to stably support and print even passbooks having different widths.

The passbook printer according to the second feature is
The rotating force of the sleeve shaft is transmitted to the eccentric sleeve through the tension bush and the cam spring by the rotation of the motor, and the eccentric rotation of the eccentric sleeve presses the left and right platens according to the opening thickness of the passbooks. The left and right platens are brought into contact with the reference guide, and among the plurality of divided platens, by operating the divided platens according to the stitch position of the passbook to move up and down, even a passbook with a different width can be used with a simple mechanism. It is possible to stably support and print.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a passbook printing apparatus according to the present invention will be described in detail below with reference to the drawings. In the figure, FIG. 1 is a view showing a cross section of a printing mechanism of a passbook printing apparatus according to the present embodiment,
2 is a diagram showing a cross section of the device for explaining the overall configuration of the passbook printing device, FIG. 3 is a diagram showing a cam structure for vertically moving the platen, and FIG. 4 is a plan view of the platen moved up and down by the cam. FIG. 5 is a diagram for explaining the platen of the binding portion of the passbook, and FIGS. 6 and 7 are diagrams for explaining the platen operation of the binding portion according to the present embodiment.

<Description of Overall Structure and Operation> First, the passbook printing apparatus according to the present embodiment has an inserter 2 for inserting or ejecting the passbook 1 and a rotary sandwiching of the passbook 1, as shown in FIG. Then, the plurality of rollers 3 and 4 that are conveyed along the conveying path 5 and the conveyed passbooks 1 are pressed from below and pressed against the reference guide 8 to keep the printing surfaces of the passbooks 1 parallel. The platen 9 and the like, an eccentric sleeve 20 that eccentrically rotates in synchronization with the rotation of the motor 18, a platen arm 13 that elastically supports the left platen 9 and the like around a shaft 16 as a rotation center, and the left platen 9 A print head 7 arranged at an upper position for printing on the passbooks 1;
And a control unit 6 for controlling these, the rollers 3 and 4 convey the passbooks 1 inserted from the inserter 2 to the print position along the conveyance path 5, and the eccentric sleeve 20 is eccentrically rotated by the rotation of the motor 18. When the left platen 9 and the like supported by the platen arm 13 are pressed from the rear surface of the passbook 1 by the back, the reference guide 8 and the left platen 9 and the like are used to open the passbook 1 to the page opening thickness and the binding spine. The print head 7 is configured to perform printing while being sandwiched along the shape.

<Description of Platen Unit> The above is the outline of the passbook printing apparatus according to the present embodiment, and the details of the structure and operation of the left platen 9 and the like will be described below with reference to FIGS. 1 and 3. First, FIG. 1 is a sectional view taken along line AA in FIG.
The cross section seen from the insert side conveyed to the printing position under the reference guide 8 with the passbooks 1 opened is shown. First, as shown in FIG. 1, the platen portion includes a left platen 9 that presses the left open page having a thickness of the passbook 1 from below, and a right platen 10 that presses a relatively thin right page of the passbook 1 from below. ,
It is composed of a plurality of divided platens 11 located in the vicinity of the binding portion of the passbooks 1. These left platens 9-1
1 is elastically supported by the platen arms 13a to 13e in a direction perpendicular to the shaft 16 as seen from above the apparatus, and the platen arms 13a to 13b support the left platen 9 and the platen arms 13a to 13b. 13c supports the plurality of split platens 11 engaged on the platen bracket 32, and the platen arms 13d to 13e are attached to the right platen 10.
I support you. The platen bracket 32 at the tip of the platen arm 13c has a plurality of vertically elongated holes 4 as shown in FIG.
1 has an open projection 42, and four split platens 11 each having an inverted U-shaped cross section and having a spring 31 built therein are fitted to the projection 42 by screws 40 so as to be vertically movable. The platen arms 13b and 13c are fixed to platen stoppers 33 and 34 extending to the lower position of the platen bracket 32 as shown in FIG. 4, and are connected to each other by a spring 38 (see FIG. 1).

Therefore, the platen portion according to the present embodiment has a left platen 9 for supporting a left open page of a passbook, a right platen 10 for supporting a right open page, and a divided four divisions for supporting a joint portion of the passbooks. The platen 11 and the platen 11 sandwich the platen bracket 32 at the seam portion and are related by the platen stoppers 33 and 34 and the spring 38. It is configured to be movable.

<Explanation of Platen Driving Mechanism> Now, as shown in FIG. 1, the mechanism for driving the platen portion is a slender rod sleeve shaft whose both ends are rotatably attached to side frames 26 and 27 by bearings 24. Three
7, cylindrical eccentric shafts 21 and 22 which are engaged with eccentric sleeves 20 at both ends and have a bearing 23 built in at an eccentric position and which is penetrated by the sleeve shaft 37.
Notch-shaped engaging portions 21a and 22a (see FIG. 3) fixed to the outer eccentric sleeves 20 of the eccentric shafts 21 and 22, respectively, and engage with the engaging portion 21a or 22a by rotation of the sleeve shaft 37. And the cam spring 36
A tension bush 35 that applies a constant tension to the eccentric shafts 21 and 22, a motor 18 that transmits rotational force to the left end of the shaft 37 via a timing belt 17, and a shield that rotates in synchronization with the rotation of the motor. The shield plate 15 is provided with a plurality of grooves, and the sensor 14 detects the phase of the eccentric sleeve 20 by rotating the shield plate 15. Further, the notch-shaped engaging portion 21a or 22a fixed to the eccentric sleeve 20 engages with the circumferential notch of the tension bush 35 as shown in FIG. Is configured.

The platen portion drive mechanism thus configured operates as follows. The rotation of the motor 18 causes the shaft 37 to rotate by a predetermined angle via the timing belt 17, whereby the tension bush 35 fixed to the shaft 35 rotates.
The rotation angle is monitored and controlled by the shield plate 15 and the sensor 14, and the motor 18 is controlled so as to maintain the rotation angle. By the rotation of the tension bush 35, the turning force is transmitted as the turning force to the eccentric shafts 21 and 22 via the pressing of the engaging portion 35a of the tension bush 35 and the engaging portion 22a of the eccentric sleeve 20 and the cam spring 36. . As a result, the eccentric sleeves 20 eccentrically fixed to both sides of the eccentric shafts 21 and 22 rotate so as to press the left platens 9 and 10 upward and lift them. The amount of rotation of the eccentric shafts 21 and 22 at this time is an elastic amount determined by the charging amount of the cam spring 36 in addition to the amount of rotation of the shaft 37. In the example of FIG. When the paper sheet is thick, the eccentric shaft 21 is determined by the rotation amount of the shaft 37 and a slight rotation amount of the cam spring 36 until it is blocked by the reference guide 8. When the leaf is thin, the eccentric shaft 22 is determined by the rotation amount of the shaft 37 and the large rotation amount of the cam spring 36 until the upper surface of the right-open page of the passbooks is pressed against the reference guide 8. That is, the rotation of the eccentric sleeve 20 according to the present embodiment is performed by the pressing of the engagement portion 35a by the rotation of the sleeve shaft 37 and the charging force of the cam spring 36, and the charging force of the spring 36 elastically responds to the thickness of passbooks. Give good support.

At this time, the platen stoppers 34 or 33 of the left and right platens 10 or 9 of the plurality of divided platens 11 at the binding position of the passbooks are lifted by lifting the platen bracket 32 of the divided platen 11 from below, A part of the split platen 11 at the binding position of the passbooks is pushed down against the spring 31, and the other split platen 1
1 rises according to the binding state of passbooks. The spring 38 generates a force for attracting the left and right platens 9 to 11 to each other, and eliminates the gap between the platens to prevent the wires of the print head 7 from entering.

As described above, the platen portion and the drive mechanism according to the present embodiment are constructed such that the turning force of the shaft 37 and the cam spring 3 are used.
The charging force of 6 is transmitted to the eccentric shafts 21 and 22 via the tension bush 35 and the cam spring 36 to rotate the eccentric sleeve 20, whereby the left platen 9 or the right platen 10 is raised by the rotation of the eccentric sleeve 20. Continues until blocked by the reference guide 8. In other words, this mechanism uses the reference guide 8 to platen 9 or 1.
When the rise of 0 is blocked, the elasticity of the cam spring 36 absorbs the charging force, so that the present mechanism is configured to raise the left platens 9 to 11 along the back pile of the passbook. In particular, the platen unit and the drive mechanism according to the present embodiment are provided with a plurality of divided platens 11 located at the binding portion of the passbooks, so that binding is performed even when the binding position changes due to the width difference of the passbooks. It is possible to cope with changes in the eye position.

The platen portion and the driving mechanism in this embodiment can finely adjust the parallelism of the platens 9 to 11 by the mounting position of the bush 25 of the bearing 24 at the right end supporting one end of the sleeve shaft 37. Further, the eccentric sleeves 20 attached to both ends of the eccentric shafts 21 and 22 are configured so that they can be fitted into and removed from the eccentric shafts 21 and 22 at a predetermined angle, and the phase with respect to the platen is preset according to the type of passbook to be printed. You can change the angle and fine-tune the amount of lifting.

<Description of Overall Operation> The operation of the passbook printing apparatus according to this embodiment will be described below. First, the motor 18 is not driven and the left platens 9 to 11 are held in the lower position until the passbooks 1 are inserted from the inserter 2 shown in FIG. 2 and conveyed to the lower position of the print head 7. . When a sensor (not shown) detects that the passbook 1 has been conveyed to a predetermined printing position, the control unit 6 transmits the tension bush to the sleeve shaft 37 while monitoring the rotation of the motor 18 by the shield plate 15 and the sensor 14. The rotation of 35 is started to maintain a constant phase angle.

The tension bush 35 transmits the charging force of the cam spring 36 to the eccentric shafts 21 and 22 in addition to the turning force of the shaft 37, and the eccentric shafts 21 and 22.
The eccentric bushes 20 attached to both sides of the plate rotate to push the left platens 9 and 10 upward. When the left platens 9 and 10 are raised, the platen stoppers 33 or 34 of the left platens 9 and 10 lift the platen brackets 32 of the divided platens 11 from below, so that the plurality of divided platens 11 are also raised and the passbooks 1 It is pressed against the binding part of.

As shown in FIG. 1, when the left open page of the bankbook 1 is thick and the open page is pressed against the reference guide 8, when the left platen 9 reaches a position where the rise of the left platen 9 is prevented, the cam spring is pressed. The charging force of 36 is elastically absorbed, and the state in which the left platen 9 presses the passbooks 1 against the reference guide 8 by a predetermined pressing force is maintained. On the other hand, the right platen 10
By the rotation of the shaft 37 and the charging force of the cam spring 36, the shaft further rises and the right open page is kept pressed against the reference guide 8 by a predetermined pressing force like the left platen 9. Further, the plurality of divided platens 11 are raised in accordance with the rise of the platen stoppers 33 or 34, and only a part of the divided platens 11 contacting the stitch portion of the passbook 1 is prevented from rising and the stitch shape is formed. Standard guide 8 according to
Is pressed. As described above, in the passbook printing apparatus according to the present embodiment, the eccentric bush 20 is rotated by the rotating force of the sleeve shaft 37 and the charging force of the cam spring 36, and the platens 9 to 11 are blocked by the reference guide 8. Each platen 9-1 by ascending to
1 can be pressed along the back surface of the passbooks 1 and a plurality of divided platens 11 are arranged in the vicinity of the binding portion of the passbooks 1 to print on various passbooks having different widths. It is possible to print while maintaining the parallelism of the surfaces.

<Description of Platen Operation for Passbooks of Various Widths> Next, the platen operation for various passbooks of different widths will be described with reference to FIGS. 6 and 7. still,
In the present description, the divided platen 11 will be described separately from the divided platens 11a to 11d for easy understanding. First, in the case of the wide passbooks 1 shown in FIG. 6, in the passbook printing apparatus, since the right end portion of the conveyed passbooks 1 is positioned by the side frame 27, the binding 1a of the passbooks 1
Is positioned on the leftmost divided platen 11a. In this case, the leftmost split platen 11a is bent by the binding seam 1a so that the spring 31 is deflected to the same height as the left platen 9, and the other split platens 11b to 11d are spring 31.
And moves up together with the right platen 10 to a height that supports the right open page. The narrow passbooks 1 shown in FIG.
In this case, since the binding 1a of the passbook 1 is located on the divided platen 11d in the passbook printing apparatus, all the divided platens 11a to 11d bend the spring 31 by pressing the binding 1a and the left open page. The height is the same as that of the left platen 9, and only the right platen 10 operates so as to support the right page opening.

As described above, in the passbook printing apparatus according to the present embodiment, since the divided platen 11 supporting the binding portion of the passbook is divided into a plurality of portions, the binding position is within the width L of the divided platen 11. The back surface of the passbooks can be pressed along the page opening thickness and the stitch position, and even the passbooks having different widths can be pressed in parallel with the reference guide to perform predetermined printing. Further, since the split platen does not move above the left and right platens, it is possible to prevent the split platen from protruding from the left and right platens and prevent damage to the print head wire and punching of passbooks during printing,
Further, when the platen is retracted, the divided platens are also retracted following the left and right platens, so that there is an effect that it does not become a conveyance resistance at the time of sucking passbooks. Further, the passbook printing apparatus according to the present invention is not limited to passbooks, and each platen can move up and down for stable printing on a single slip.

[0023]

As described above, according to the present invention, by dividing the platen in the vicinity of the binding portion of left and right open passbooks, printing on a print medium such as left and right open passbooks having different widths is complicated. It can be performed efficiently and stably without requiring control. Further, the platen drive mechanism transmits the turning force of the sleeve shaft to the eccentric sleeve via the tension bush and the cam spring, and the eccentric rotation of the eccentric sleeve presses the left and right platens according to the page opening thickness of the passbooks. The left and right platens are brought into contact with the reference guides and the divided platens among the plurality of divided platens are moved up and down according to the position of the stitches, so that a simple mechanism can be applied to passbooks with different widths. It is also possible to stably support and print.

[Brief description of drawings]

FIG. 1 is a diagram showing a main configuration of a passbook printing apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing an overall configuration of a passbook printing apparatus according to the present embodiment.

FIG. 3 is a view showing engagement between an eccentric sleeve and a tension bush according to this embodiment.

FIG. 4 is a diagram showing a plane of a platen structure according to the present embodiment.

5 is a view for explaining the split platen and its supporting structure shown in FIG.

FIG. 6 is a diagram for explaining a platen operation for wide passbooks.

FIG. 7 is a diagram for explaining a platen operation for a narrow passbook.

[Explanation of symbols]

1: passbooks, 5: transport path, 6: control unit, 7: print head, 8: reference guide, 9: left platen, 10: right platen, 11: split platen, 12: retraction spring,
13: platen arm, 15: pulley, 20: eccentric sleeve, 21 and 22: eccentric shaft, 31: split platen spring, 32: split platen bracket, 33 and 3
4: Platen stopper, 35: Tension bush, 3
6: cam spring, 37: sleeve shaft, 38:
Left and right platen springs.

Claims (2)

[Claims] 1. A passbook printing apparatus that prints by supporting a back surface of a left-right open passbook with a binding by a plurality of platens, and a left platen supporting a left open page back surface of the left-right open passbooks and the passbooks. A right platen for supporting the back surface of the right open page, a plurality of split platens located independently in the vicinity of the left and right open pages and independently movable up and down, and a reference guide against which the left and right open pages are pressed by the left and right and split platens. A platen drive mechanism that moves the respective platens up and down to bring the open pages of the passbooks into contact with the reference guide, and the platen drive mechanism applies the left and right platens to the reference guides according to the thickness of the left and right open pages of the passbooks. A passbook printing apparatus, which is in contact with and moves up and down a split platen of a plurality of split platens according to a position of a passbook stitch. 2. The platen drive mechanism is engaged with a sleeve shaft rotated by a motor, a tension bush rotated in synchronization with the shaft, the tension bush, an engagement portion and a cam spring. A plurality of eccentric sleeves that are eccentrically rotated with respect to the sleeve shaft, and a plurality of first platen arms that support the plurality of eccentric sleeves so as to abut the left and right platens,
A second platen arm that supports a split platen that is lifted by upward movement of the first platen arm, and the rotational force of the sleeve shaft is rotated by the motor to an eccentric sleeve through a tension bush and a cam spring. The left and right platens are pressed by the eccentric rotation of the eccentric sleeve in accordance with the page opening thickness of the passbooks so that the left and right platens come into contact with the reference guides. 2. The passbook printing apparatus according to claim 1, wherein the divided platen is moved up and down according to the above.