JPH11157251A - Automatic page feed device for booklet-like medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To raise reliability in page turning operation concerning an automatic page-feed device for a booklet-like medium. SOLUTION: A pushing up part 2 wherein a medium 1 is incurvated by pushing up an intermediate part of a binding side side edge 10 of the medium 1 bound in a booklet shape and an opening side side edge 11, and a page-feeding roller 3 which comes in pressure contact with the opening side side edge 11 of the medium 1 to shift an uppermost layer page 12 to the binding side are provided. The pushing up part 2 can adjust an angle of contact θ on the page- feeding roller 3 of the uppermost layer page 12 by being displaced in a direction crossing at right angles a pushing up height direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic page breaker.

[0002]

2. Description of the Related Art FIG. 9 shows a conventional example of an automatic page breaker used for a passbook printer or the like. In this conventional example, an automatic page-breaking device restrains a binding-side edge 10 and a opening-side edge 11 of a print medium 1 formed into a booklet with one edge bound.
It comprises a pair of roller pairs 3, 30, 4, 40, and a push-up unit 2 corresponding to an intermediate portion of the print medium 1. The printing medium 1 conveyed on the conveyance path first has the binding side edge 10 and the opening side edge 11 having the respective roller pairs 3, 30, 4, and 4.
The central portion is pushed up by the push-up portion 2 which is driven up and then curved (FIG. 9).
(A)). In this state, when the page feed roller 3 constituting the opening-side restraint portion is rotated in the direction of arrow A in FIG. 9, that is, in the counterclockwise direction, the state shown in FIG.
As shown in (c), the uppermost page 12 of the print medium 1 is flipped up due to the friction between the page feed roller 3 and the print medium 1. Next, the print medium 1 is moved in the direction of arrow B in FIG. 9C, and the uppermost page 12 jumped up on the page feed roller 3 is turned in the opposite direction, and the page feed operation is completed.

[0003]

However, the above-mentioned prior art has the following disadvantages. That is, the passbook-shaped print medium 1 is generally composed of a relatively thick cover sheet and an intermediate sheet thinner than the cover sheet sandwiched between the cover sheets, and the print medium 1 targeted for a page break differs in rigidity. In addition, the surface condition of the print medium 1 changes with time due to dirt and the like, and a magnetic stripe or the like is disposed on the cover, and the friction coefficient differs depending on the contact position with the page feed roller 3. In the above-described conventional example in which the push-up unit 2 is pushed up to a predetermined height during a page break operation, if the friction coefficient is different, the page break operation becomes unstable, and the page break cannot be performed due to slip, or multiple pages are opened at a time. Page turning occurs.

When the uppermost page 12 is flipped up onto the page feed roller 3 after the uppermost page 12 has been fed to the binding side, the open side edge 11 of the medium 1 is pinched together with the page feed roller 3. FIG. 9 shows the pressure roller 30 attached.
It is necessary to retreat as shown in FIG. This is because, if the page feed roller 3 is driven without retreating the pressure roller 30, the lower page pressed against the page feed roller 3 is also fed, and multiple turning occurs. on the other hand,
A restoring force due to rigidity is generated in the uppermost page 12 whose curvature is reduced by the rotation of the page feed roller 3, and the component force of the uppermost layer page 12 in the tangential direction of the page feed roller 3 coincides in the vertical direction. If the deformation does not exceed the point, the restoration to the original position is prevented by the frictional force with the page break roller 3, so that the curved medium 1 slips when the pressure roller 30 is retracted. And arrow C in FIG.
Direction and return to the original posture in many cases. However, in the above-mentioned conventional example, the uppermost page 12 is deformed to a position beyond the thought point only by the rotation of the page feed roller 3, so that if the feed cannot be performed beyond the thought point, a jump-up failure due to slip will occur. Likely to happen.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks, and an object of the present invention is to provide an automatic page breaker having a highly reliable page break operation. Another object of the present invention is to provide a method of adjusting the page feed force of a booklet medium for reliably feeding only the uppermost page 12 when automatically turning a page. In addition, the present invention provides a feed top page 1
It is an object of the present invention to provide a method of flipping a page of a booklet-shaped medium, which can surely flip the sheet 2 over the page feed roller 3.

[0006]

According to the present invention, the object is to push up an intermediate portion between a binding side edge 10 and an opening side edge 11 of a booklet-bound medium 1 to bend the medium 1. Unit 2 and a page feed roller 3 that presses against the opening side edge 11 of the medium 1 and shifts the uppermost layer page 12 to the binding side.
The push-up unit 2 is provided in an automatic page-breaking apparatus for a booklet-shaped medium in which the winding angle θ of the uppermost page 12 around the page-breaking roller 3 can be adjusted by being displaced in a direction perpendicular to the push-up height direction. Is achieved by

In the present invention, the booklet-shaped medium 1 is pushed up by the push-up section 2 and is curved, and the page break roller 3 is pressed against the turning side of the medium 1, that is, the uppermost layer page 12 of the opening side edge 11. . When the page break roller 3 is driven to rotate, the uppermost layer page 12 of the medium 1 shifts toward the binding side while reducing the curvature due to the frictional force of the page break roller 3, and after passing through the page break roller 3, due to the rigidity of the medium 1 itself. It jumps over the page break roller 3. Thereafter, when the medium 1 is moved to the page feed roller 3, the uppermost page 12 jumped up on the page feed roller 3 is turned. In order to enhance the reliability of automatic page break, it is essential to shift only the top layer page 12 and jump it up onto the page break roller 3, and therefore, the feed force of the top layer page 12 by the page break roller 3 is reduced. Adjusted. If the feed force is weak, page break failure occurs, and if it is too strong, pages in the second and lower layers are fed together to cause multiple page turning.

[0008] In this specification, "top page"
Means a page to be broken, and for a passbook, for example, a cover page is used for a bound passbook with a cover bound, and for an open passbook with the cover page opened. Refers to the page that is opened and targeted for a page break. The “binding side edge 10” refers to the bound side edge of each page of the booklet-shaped medium 1.

When the medium 1 is wrapped around the page feed roller 3 at the winding angle θ, the feed force F of the medium 1 by the page feed roller 3 is defined as P being a vertical load and μ being a friction coefficient.

[0010]

(Equation 1)

The feed force can be adjusted by adjusting θ. The winding angle θ is adjusted by operating the push-up unit 2 to displace the contact portion with the medium 1 in a direction perpendicular to the push-up height direction. As shown in FIG. 1, a perpendicular line L <b> 1 drawn from the contact point 20 of the push-up unit 2 with the medium 1 with respect to the support surface of the medium 1
And a perpendicular line L2 orthogonal to the support surface of the page feed roller 3.
Is adjusted according to the type, state, and the like of the medium 1, the feed force to the uppermost page 12 can be adjusted. That is, when the distance d is reduced, the winding angle θ increases and the feed force increases, and when the distance d increases, the feed force decreases.

The distance d can be adjusted by, for example, moving the push-up portion 2 to the side, or adjusting the advance / retreat angle θ 'of the push-up portion 2 as shown in FIG.
Also, as shown in FIG. 1 (a), it is effective to move the push-up portion 2 only in the direction perpendicular to the support surface in order to simplify the structure. If the movable body 5 that moves in the direction is mounted, the distance d can be easily adjusted. The movable body 5 can be configured to simply move forward and backward with respect to the push-up unit 2, or can be configured to rotate about the vicinity of the top of the push-up unit 2 as shown in FIG. . In the case where the movable body 5 is rotated, as shown by an arrow A in the figure, when the movable body 5 is rotated upward from below, it is smoothly wound around the page feed roller 3.

A third aspect of the present invention is a method for flipping pages of a booklet-shaped medium, wherein a binding side edge 10 and an opening side edge 1 are provided.
The intermediate portion 1 is pushed up by the push-up unit 2 and the page-breaking roller 3 pressed against the opening side edge 11 of the curved booklet medium 1 is rotationally driven to bind the uppermost page 12 of the opening side edge 11 to the binding side. , The rotation of the page break roller 3 is stopped, and the binding side of the medium 1 is moved to the open side. Thereafter, the page break roller 3 is driven to rotate so that the uppermost page 12 is placed on the page break roller 3. It is configured to jump up.

Prior to the flipping-up operation, the uppermost page 12 to be page-breaked is curved by pushing up an intermediate portion between the binding side and the opening side, and the uppermost layer page 12 is bound by the page-breaking roller 3 from the opening side. Then, the rotation of the page feed roller 3 is stopped, and the binding side of the medium 1 is moved to the open side. As shown in FIG. 6A, there is a displacement H in the height direction between the binding side of the medium 1 and the open edge of the uppermost page 12 on the page break roller 3. Medium 1
By moving the binding side to the opening side, the restoring force due to the rigidity of the uppermost page 12 is increased by the arrow A in FIG.
As shown by, the contact point with the page feed roller 3 works obliquely upward, that is, in the flip-up direction, so that even if the pressure roller 30 is moved to the retracted position, it does not slip and return to the original position. The reliability of the lifting operation is improved.

[0015]

FIG. 2 shows a passbook printer to which the present invention is applied. When a passbook (booklet-shaped medium 1) is inserted from the reception port 60, the magnetic reading unit 61 reads a magnetic stripe formed on the cover of the passbook 1 and writes to the magnetic stripe. After this, passbook 1
Is conveyed to the image sensor unit 62, the passbook page mark or the print line is read, and is recorded in the print unit 63. Opening / closing of the passbook 1 is determined by detecting the medium length, and when a page break is required, the page turning unit 64 is used.
Transported to In the page turning section 64, after the passbook 1 is set at a predetermined position, the cover of the closed passbook 1 or the page of the inner sheet of the open passbook 1 is turned on, and the printing section 63 makes entries as necessary. Later, return to the user.

The page turning section 64 includes a page break roller 3 and a pressing roller 4 as shown in FIGS. The page feed roller 3 is formed by arranging a roller body and a flip-up roller coaxially, and is driven to rotate by a pulse motor 41. The rotation force of the page break roller 3 is controlled by a pulse motor 4.
It is detected by a torque sensor 42 interposed between the first drive shaft and the page feed roller 3. The page feed roller 3 and the pressing roller 4 are formed of rubber or the like in order to obtain a large frictional force. In the setting state of the passbook 1 shown in FIG. 3, the edge 10 on the closing side is sandwiched by the pressing roller 4 and the pressure roller 40 facing the pressing roller 4, and the edge on the opening side is The sheet is pinched by the pressure roller 30 facing the page feed roller 3 and is prevented from moving. In order to press the top layer page 12 against the page break roller 3 with a predetermined pressure, the pressure roller 30 is urged toward the page break roller 3 by a spring 31. Further, as shown in FIG. 7, the pressure roller 30 can be retracted to a position where no pressing force is applied to the passbook 1, as shown in FIG. 3 to 8 show the operation of changing the page of the closed passbook 1, but in the case of the open passbook 1, the binding margin is pressed by the pressing roller 4.

The push-up unit 2 is disposed at an intermediate position between the press roller 4 and the page feed roller 3. The push-up portion 2 is formed by attaching the movable body 5 to the tip of a main body 22 driven up and down by a push-up magnet 21 (solenoid).
The pushing force is detected by a pressure sensor 23 interposed between the pushing magnet 21 and the main body 22. The movable body 5 is a cylindrical body rotatably supported at the tip of the main body 22 by a rotating shaft 50 provided at an eccentric position, and its outer periphery is made a smooth surface to reduce friction. A friction roller 51 presses against an idle roller 22 a rotatably mounted on the main body 22 around a rotation shaft 50 of the movable body 5.
Is formed. Further, a movable body driving motor 24 (stepping motor) is fixed to the main body 22. When the stepping motor 24 is driven to rotate by a predetermined step, rotational power is transmitted to the friction roller 51 via the idle roller 22a. The movable body 5 is swung by a predetermined angle.

The operation of the page turning section 64 will be described. First, when the setting state of the passbook 1 is confirmed, the push-up unit 2 is driven upward as shown in FIG. Confirmation of the set state is performed by a medium detection sensor (not shown) arranged on the upstream side. The central portion of the passbook 1 is pushed upward and curved by the rise of the push-up portion 2. The push-up pressure is detected by a pressure sensor 23 interposed between the main body 22 and the push-up magnet 21. Based on the detection result, the movable body drive motor 24 is driven to move the movable body 5 as shown in FIG. Is swung around the rotation axis 50. A preferable relationship between the output of the pressure sensor 23 and the swing angle α of the movable body 5, that is, a relationship for surely feeding only the uppermost page 12 is experimentally obtained in advance and stored as a comparison table in a storage device (not shown). Have been. As shown in FIG. 1, when the movable body 5 is driven, a contact point 2 of the push-up unit 2 with the medium 1 is formed.
The distance d between 0 and a tangent from the page break roller 3 orthogonal to the support surface of the medium 1 changes, and when the distance d decreases, the winding angle θ of the passbook 1 around the page break roller 3 increases, d
Increases, the winding angle θ decreases. FIG.
5A shows the case where the movable body 50 is driven to increase the winding angle θ, and FIG. 5B shows the case where the movable body 50 is driven to reduce the winding angle θ.

From this state, the page feed roller 3 is rotated in the direction of arrow A in FIG.
The torque at the time of rotation is output from the torque sensor 42. A preferable relationship between the outputs from the torque sensor 42 and the pressure sensor 23 and the movable body 5 is stored as a table in a storage device (not shown), and the swing of the movable body 5 is determined based on the output of the torque sensor 42 and the output value of the pressure sensor 23. The angle is adjusted.
When the page break roller 3 is driven under such control conditions, as shown in FIG. 6, the top layer page 12 of the passbook 1, that is, the cover page for the closed passbook 1 and the page break roller 3 for the open passbook 1. Only the abutting page is swelled upward by the page break roller 3. A detection lever 7 rotatably supported coaxially with the pressing roller 4 due to the swelling of the target page blocks a detection sensor 70 composed of a photo interrupter, and the detection sensor 70 detects the detection lever 7 to drive the page feed roller 3. Stop. After stopping the page feed roller 3, the pressing roller 4 is driven in the reverse direction to move the binding side edge 10 to the opening side as shown by the arrow B in FIG.
As shown in FIG. 7, the top layer page 12 increases the winding angle θ around the page feed roller 3 while further reducing the curvature. Thereafter, the pressure roller 30 is moved to the retracted position, and the page feed roller 3 is driven again in the direction of arrow A in FIG. 7, and as shown in FIG. Only 12 can be flipped over the page break roller 3. When the passbook 1 is moved to the opening side from this state, the top layer page 12 is pushed and opened by the page break roller 3 and the page break operation is completed.

In the above description, the case where the swing angle α of the movable body 5 is constantly adjusted by the outputs of the pressure sensor 23 and the torque sensor 42 has been described. However, the output value of the pressure sensor 23 during the bending operation of the passbook 1 has been described. Or torque sensor 4
The initial value of the swing angle α determined by the output value of 2 may be used until the operation is completed.

[0021]

As is apparent from the above description, according to the present invention, only the uppermost page can be reliably fed, so that a turning failure or a large number of pages can be prevented. Can be enhanced.

[Brief description of the drawings]

1A and 1B are diagrams showing the present invention, in which FIG. 1A shows a case in which a winding angle is adjusted using a movable body, and FIG. 1B shows a case in which the winding angle is adjusted by a push-up angle of a push-up unit. FIG.

FIG. 2 is a diagram illustrating a passbook printer.

FIG. 3 is a diagram illustrating a page turning unit.

FIG. 4 is a diagram illustrating an operation of a push-up unit.

FIG. 5 is a diagram showing an operation of a movable body.

FIG. 6 is a diagram illustrating a page shifting operation.

FIG. 7 is a diagram showing a page flipping operation.

FIG. 8 is a diagram illustrating a completed page flipping operation state.

FIG. 9 is a diagram showing a conventional example.

[Description of Signs] 1 Medium 10 Binding side edge 11 Opening side edge 12 Top layer page 2 Push-up section 20 Contact point 3 Page break roller θ Wrap angle

Claims (3)

[Claims] A push-up portion for pushing up an intermediate portion between a binding side edge and an opening side edge of a booklet-stitched medium to bend the medium; And a push-up portion, the push-up portion being displaced in a direction perpendicular to the push-up height direction to adjust a winding angle of the uppermost page to the page feed roller. Automatic page breaker. 2. An intermediate portion between the binding side edge and the opening side edge is pushed up by the pushing up portion, and the page break roller pressed against the opening side edge of the curved booklet medium is rotationally driven to rotate the opening side. When feeding the uppermost page to the binding side, the contact point of the push-up unit to the medium is displaced in a direction perpendicular to the push-up direction to adjust the winding angle of the uppermost page to the page feed roller, A method for adjusting the page feed force of a booklet medium for adjusting the page feed force. 3. An opening side edge of a booklet-shaped medium curved by being pushed up by an intermediate portion between the binding side edge and the opening side edge and being pressed against the opening side edge of the curved booklet-shaped medium. After the top page is fed to the binding side, the rotation of the page break roller is stopped, the binding side of the medium is moved to the open side, and then the page break roller is rotationally driven to break the top page. A method of flipping pages of a book-like medium flipping over rollers.