JP2000127652A - Page turning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid a phenomenon in which a turned page is drawn in by a turning roller to be folded. SOLUTION: In such a state that a rocking guide 13 is rotated to an advance position A, a page 2a is certainly turned up by widening the contact range of a turning roller 10 with the page 2a of a booklet 2 through the displacement action of a roller guide 18. The page 2a turned up by the turning roller 10 is supported by the protrusion part 22 of the roller guide 18. In order to turn back the turned-up page 2a, however, the turned-up page 2a is made to fall down to the upstream side by the protrusion part 22 of the roller guide 18 which is displaced in such a state that the rocking guide 13 is rotated to a retreat position A. Thus the page 2a is set away from the roller 10 and thereby a phenomenon in which the turned-up page 2a is drawn in by the turning roller 10 is avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a page turning apparatus used in a printer for printing a booklet.

[0002]

2. Description of the Related Art Various types of page turning devices have been proposed, but a relatively simple one is shown in FIGS. Hereinafter, a specific description will be given with reference to the drawings.

[0005] Reference numeral 1 denotes a booklet transport path that defines a transport path of a booklet (hereinafter referred to as a passbook) 2. The booklet transport path 1 is formed by arranging upper guide plates 4 and 5 on a lower guide plate 3 with a predetermined gap therebetween. The booklet transport path 1 is provided with a plurality of transport rollers 6 to 9 serving as a plurality of booklet transport members, which are paired in the vertical direction, respectively. In this example, the lower transport rollers 7, 9 are connected to a transport motor (not shown) that can rotate forward and reverse. In addition, a turning roller 10 is provided between the adjacent transport rollers 6 and 8.
Are rotatably provided. A roller drive shaft 11 that drives the page turning roller 10 is connected to a page turning motor (not shown) that can be driven to rotate forward and reverse.

Further, a swinging guide 13 having a flat booklet pressing surface 12 facing the turning roller 10 is provided. Both ends of a guide shaft 14 for rotating the swing guide 13 are fixedly connected to levers 15 arranged on both sides of the booklet transport path 1. The guide shaft 14 is connected to a guide motor (not shown) that can rotate forward and backward, and the lever 15 and the swing guide 13 are configured to rotate integrally by driving the guide shaft 14. Also, the booklet transport path 1
On the other hand, the roller drive shaft 11 and the guide shaft 14 are arranged at right angles.

[0005] Both ends of the roller drive shaft 11 are connected to the lever 1.
5 is rotatably supported. Further, the booklet transport path 1 is provided with booklet sensors 16 and 17 for detecting the passbook 2 passing therethrough.

Further, a roller guide 50 is provided on the lever 15.
Is provided. As shown in FIG. 12, the roller guide 50 has a lower portion formed in a substantially semicircular shape having a radius slightly smaller than the radius of the page turning roller 10, and an upper portion formed in a mountain shape projecting outward from the outer periphery of the page turning roller 10. Formed,
An inverted U-shaped notch 51 that fits over the roller drive shaft 11 is formed at the center. The roller guide 50 is prevented from rotating about the roller drive shaft 11 by a shaft 52 fixed to the lever 15.

In such a page turning apparatus, the transport rollers 6 to 9 are driven in the state shown in FIG. 8 to open the page and move the passbook 2 inserted into the booklet transport path 1 in one direction (upper left direction in FIG. 8). Transport to In the conveyance process shown in FIG. 8, the position of the swing guide 13 is such that the booklet pressing surface 12 is
Retreat position A, which forms a gap between the booklet pressing surface 12 and the page turning roller 10 and which allows the passbook 2 to be transported.
It is.

When the leading end of the passbook 2 reaches between the page turning roller 10 and the conveying rollers 8 and 9 downstream thereof, the conveying rollers 6 to 9 are stopped. This stop position is the position of the booklet sensor 16.
Is determined by a method such as counting the drive pulses of the transport motor after detecting the leading end of the passbook 2.

Subsequently, as shown in FIG. 9, the guide motor is driven counterclockwise to rotate the lever 15 together with the swing guide 13 counterclockwise by a predetermined angle. The position of the swing guide 13 at this time is the advance position C at which the passbook 2 is pressed against the turning roller 10 on the booklet pressing surface 12. In this state,
The page turning roller 10 is rotated in a direction (counterclockwise) opposite to the conveying direction of the book 2. Thereby, the page 2a of the passbook 2 is turned up. In this case, the next page may be slightly turned, so that the swing guide 13 is slightly returned to the retreat position A side, and the page that has been turned by returning the passbook 2 to the turning roller 10 by pressing the pressing force is returned. Then, the process proceeds to the next page turning process.

That is, as shown in FIG. 10, the guide shaft 14 is driven clockwise, and the lever 15 is
The booklet pressing surface 12 is returned to the retreat position A parallel to the booklet transport path 1, and the page 2a that has been turned up is slightly tilted to the upstream side by the roller guide 50.
The pager 2 is conveyed in one direction (upper left direction) by turning the page turning roller 10 clockwise and using the page turning roller 10 and the conveying rollers 6 to 9. As a result, the page 2a that has been turned upside down is laid down on the upstream page while the passbook 2 passes under the page turning roller 10, and the page turning operation is completed here.

When the page is turned in the process of transporting the passbook 2 in the other direction (lower right direction), the rotation direction of the transport rollers 6 to 9 and the page turning roller 10 and the rotation of the swing guide 13 and the lever 15 are required. The moving direction may be reversed from the direction described above. In this case, in order to determine the timing for rotating the swing guide 13 to the advanced position, it is determined whether or not the passbook 2 has reached the predetermined position by using the detection signal of the booklet sensor 17 instead of the detection signal of the booklet sensor 16. Perform on the basis.

[0012]

By the way, it has been described that after the top page 2a is turned, the turning roller 10 is rotated in the transport direction (clockwise) for the turning process. In the turning process, the turned page 2a may come into contact with the outer periphery of the turning roller 10 as shown in FIG. For this reason, as shown in FIG. 11, the leading portion of the turned page 2a may be pulled in by the turning roller 10 and may be broken when passing under the turning roller 10. If the page turning roller 10 is rotated in the opposite direction to the transport rollers 6 and 8, the next page may be turned by the page turning roller 10.

If the radius of the outer periphery of the lower portion of the roller guide 50 is increased in order to prevent such a situation, the contact area between the page 2a and the page turning roller 10 is reduced in the turning-up process shown in FIG. In the case of paper quality, there is a possibility that page turning cannot be performed reliably.

[0014]

According to the first aspect of the present invention,
A plurality of booklet transport members arranged along the booklet transport path;
A reversible drive roller disposed between the adjacent booklet transport members and having a booklet pressing surface facing the pager roller, wherein the booklet pressing surface is substantially parallel to the booklet transport path. A retracting position, and a swinging guide that is driven in a rotating direction between an advance position for pressing the booklet against the page turning roller on the booklet pressing surface, and further opposing the booklet pressing surface of the page turning roller. An opening is formed in the lower part of the lower side to open a range that covers substantially half the circumference, and a portion extending upward from near a parallel line passing through the center of the page turning roller in parallel with the booklet pressing surface is defined by a radius of the page turning roller. A protruding portion that protrudes in a mountain shape with a long dimension is formed, and includes a roller guide that is displaced while maintaining a relative positional relationship immovable with the swing guide.

Therefore, when the swing guide is rotated to the advanced position, the contact range of the page turning roller with respect to the page of the booklet is widened by the displacement operation of the roller guide. The pages of the booklet turned up by the page up rollers are supported by the protrusions of the roller guide. In a state where the swinging guide is rotated to the retracted position in order to turn over the page that has been turned up, the protruding portion of the displaced roller guide tilts the page that has been turned up to the upstream side, and is turned up at this time. Page away from the page turning roller.

According to a second aspect of the present invention, in the first aspect of the present invention, the opening of the roller guide is ± 15 ° with respect to a parallel line passing through the center of the page turning roller in parallel with the booklet pressing surface. It is formed in a shape that opens a lower outer periphery.

Accordingly, when the swing guide is rotated to the advanced position, the contact range of the page turning roller with respect to the page of the booklet is widened by the displacement operation of the roller guide. The pages of the booklet turned up by the page up rollers are supported by the protrusions of the roller guide. In a state where the swinging guide is rotated to the retracted position in order to turn over the page that has been turned up, the protruding portion of the displacing roller guide tilts the page that has been turned up to the upstream side, and at this time it is turned up. Page away from the page turning roller.

According to a third aspect of the present invention, in the first or second aspect, the step of transporting the booklet in the discharge direction by the booklet transport member from the time when the page of the booklet is flipped by the page turning roller. In this configuration, the page turning roller is driven in the same direction as the booklet conveying direction in synchronization with the operation of the booklet conveying member in the booklet conveying direction.

Therefore, after turning up the desired page,
The process of turning over the turned pages to the upstream side can be performed in the process of transporting the booklet in the discharge direction by the booklet transport member. At this time, since the page turning roller rotates in the booklet conveying direction, the booklet to be conveyed quickly passes under the page turning roller without receiving resistance from the page turning roller.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 8 to 12 are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, the booklet transport path 1, the transport rollers 6 to 9 as the booklet transport member,
0, swing guide 13, lever 15, booklet sensor 16, 1
The configuration of 7 is the same as that described in FIGS. The booklet to be conveyed is, for example, the passbook 2, but is not limited to this.

Further, in the present embodiment, the turning roller 10
The number is one in the figure but is plural in the direction orthogonal to the booklet conveyance direction, and these are fixedly fitted to the roller drive shaft 11. A roller guide 18 is provided near the side surface of the page turning roller 10. These roller guides 18 are provided on the booklet pressing surface 1 of the swing guide 13.
A vertical line 1 passing through the center of the turning roller 10 perpendicular to 2
9, the opening roller 20 is provided in the lower part of the lower portion of the turning roller 10 and opens a substantially half circumference of the lower side facing the booklet pressing surface 12 so as to be parallel to the booklet pressing surface 12. A portion extending from the vicinity of the parallel line 21 passing through the center to the upper side is provided with a protruding portion 22 that protrudes in a mountain shape with a dimension longer than the radius of the page turning roller 10.

The roller guide 18 has an inverted U-shaped notch 23 formed at the lower portion thereof so as to fit over the roller drive shaft 11, and the top of the protrusion 22 is engaged by a shaft 24 fixed to the lever 15. Has been stopped. That is, the roller guide 18 is supported by the lever 15 so as to be displaced while maintaining a relative positional relationship immovable with the swing guide 13. Further, the roller drive shaft 11 and the guide shaft 14 are disposed so as to be perpendicular to the booklet transport path 1.

Here, the range in which the opening portion 20 opens a substantially half circumference on the lower side of the page turning roller 10 opposite to the booklet pressing surface 12 is, as shown in FIG. 5, the booklet pressing surface 12 (FIGS. 1 to 4). 2) between two parallel points P where the parallel line 21 passing through the center of the page turning roller 10 and the outer periphery of the page turning roller 10 intersect with each other, but there is an allowable range. The permissible range may be any state as long as the intersection P is located within ± 15 ° with respect to the parallel line 21 as shown in FIG.

Further, there are provided shutter guides 25 and 26 which are rotated by being pushed by a page which is turned by the turning roller 10. The center of rotation of these shutter guides 25 and 26 is coaxial with the center of rotation of the transport rollers 6 and 8.

In such a configuration, first, the "passbook transport, page turning position stop" shown in the flowchart of FIG.
The process of T1) is performed. That is, the transport rollers 6 to 9 are driven in the initial state shown in FIG. 1 to open the page and transport the passbook 2 inserted into the booklet transport path 1 in one direction (upper left direction in FIG. 1). In the transporting process shown in FIG. 1, the position of the swing guide 13 is such that the booklet pressing surface 12 is parallel to the booklet transporting path 1 and the transport of the passbook 2 is allowed between the booklet pressing surface 12 and the page turning roller 10. Position (a position where a vertical line 19 perpendicular to the booklet pressing surface 12 is perpendicular to the booklet transport path 1).

When the leading edge of the passbook 2 reaches between the page turning roller 10 and the conveying rollers 8 and 9 on the downstream side, the conveying rollers 6 to 9 are stopped. This stop position is the position of the booklet sensor 16.
Is determined by a method such as counting the drive pulses of the transport motor after detecting the leading end of the passbook 2.

Subsequently, "page turning" (ST) shown in FIG.
Perform the process of 2). That is, as shown in FIG. 2, the guide motor is driven counterclockwise, and the lever 15 is rotated counterclockwise by a predetermined angle together with the swing guide 13 and the roller guide 18. The position of the swing guide 13 at this time is
This is an advance position C where the passbook 2 is pressed against the page turning roller 10 on the booklet pressing surface 12 (a position where a vertical line 19 orthogonal to the booklet pressing surface 12 intersects the booklet conveying path 1 at a predetermined angle). At this time, the shutter guide 26 on the downstream side is
6 to rotate upward.

In the state shown in FIG. 2, when the page turning roller 10 is rotated in the direction opposite to the direction in which the bankbook 2 is conveyed (counterclockwise), the page 2a of the bankbook 2 is gradually turned up. Numeral 25 is pushed by the page 2a which swells upward and rotates upward.

Next, the process of "next page return" (ST3) shown in the flowchart of FIG. 7 is performed. As shown in FIG. 3, the guide motor is driven clockwise, and the lever 15 is rotated clockwise together with the swing guide 13 and the roller guide 18 to return the lever 15 to the retracted position A side. As a result, the pressing force of the passbook 2 against the page turning roller 10 is reduced, so that even if the next page and subsequent pages are being turned upward, the page expands due to its own stiffness and follows the lower layer page. Return to the state.

Subsequently, the processing of "page flipping" (ST4) shown in the flowchart of FIG. 7 is performed. This is a process of flipping the leading end of the swollen page 2a by rotating the page turning roller 10 in a counterclockwise direction opposite to the pass-and-convey direction in the state shown in FIG.

Next, the processing of "turning of a turned page" (ST5) shown in the flowchart of FIG. 7 is performed. That is, as shown in FIG. 4, the guide motor is driven clockwise, the lever 15 is rotated clockwise together with the swing guide 13 and the roller guide 18 to return to the retreat position A, and the transport rollers 6 to 9 are passed through the booklet. , And the page turning roller 10 is also rotated in the passbook transport direction in synchronization with this operation, and the passbook 2 is transported in one direction (upper left direction). As a result, the page 2a that has been turned up is turned upside down while the passbook 2 passes under the page turning roller 10 and is overlaid on the page on the upstream side, and the page turning operation ends here.

When the page is turned in the process of conveying the passbook 2 in the other direction (lower right direction), the rotation direction of the conveying rollers 6 to 9 and the turning roller 10, the swing guide 13 and the lever 15
May be reversed from the direction described above. In this case, in order to determine the timing for rotating the swing guide 13 to the advanced position, it is determined whether or not the passbook 2 has reached the predetermined position by using the detection signal of the booklet sensor 17 instead of the detection signal of the booklet sensor 16. Perform on the basis.

Since the roller guide 18 is symmetrical with respect to the vertical line 19, the page 2a of the passbook 2 is turned up by the page up roller 10 regardless of whether it is turned up in one direction or the other direction. Page 2a can be prevented from being involved.

As described above, in the state shown in FIG. 2 in which the swing guide 13 is rotated to the advanced position C, the roller guide 18
, The contact area of the page turning roller 10 with the page 2a of the passbook 2 is widened, so that the page 2a can be reliably turned up. The page 2a of the passbook 2 turned up by the page turning roller 10 is supported by the protruding portion 22 of the roller guide 18, and the swing guide 1 is turned to turn the page 2a turned up.
In a state where the roller 3 is rotated to the retreat position A as shown in FIG. 4, the protruding portion 22 of the displaced roller guide 18 tilts the page 2a being turned up to the upstream side and separates it from the page turning roller 10. As described with reference to FIG. 11, it is possible to prevent the turned-up page 2a from being caught by the turning roller 10.

Such an effect is obtained when the position of the intersection P, which indicates a range in which the lower periphery of the page turning roller 10 is opened, is located within ± 15 ° with respect to the parallel line 21 as shown in FIG. Can be obtained similarly.

Further, in the process of transporting the passbook 2 in the discharge direction by the transport rollers 6 to 9, the page turning roller 10 is driven in the same direction as the passbook transport direction in synchronization with the operation of the transport rollers 6 to 9 in the passbook transport direction. It is configured to
After turning up the desired page 2a, the turned up page 2a
Can be performed in the process of transporting the passbook 2 in the discharge direction by the transport rollers 6 to 9. At this time, since the page turning roller 10 rotates in the passbook transport direction,
The conveyed passbook 2 quickly passes under the page turning roller 10 without receiving resistance from the page turning roller 10. Therefore, it is possible to contribute to preventing occurrence of a jam.

[0038]

According to the first and second aspects of the present invention, in the state where the swing guide is rotated to the advanced position, the contact range of the turning roller with respect to the page of the booklet is widened by the displacement operation of the roller guide. , The page can be reliably turned up. The pages of the booklet turned up by the turning rollers are supported by the protruding portions of the roller guides, but in a state where the swing guide is turned to the retracted position in order to turn the pages turned up,
Since the protruding portion of the displaced roller guide tilts the page that has been turned up to the upstream side and separates the page that has been turned up from the page turning roller at this time, it is possible to prevent the page that has been turned up from being caught by the page turning roller. Can be.

According to the third aspect of the present invention, after turning up a desired page, a process of turning up the turned-up page to the upstream side is performed in the process of transporting the booklet in the discharge direction by the booklet transporting member. be able to. At this time, since the page turning roller rotates in the booklet conveying direction, the booklet to be conveyed quickly passes under the page turning roller without receiving resistance from the page turning roller. Therefore, it can contribute to preventing the occurrence of jam.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing a booklet conveying process according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view showing a state in which pages of a booklet are turned up.

FIG. 3 is a longitudinal sectional side view showing a state in which pages of a booklet that has been flipped up are flipped up.

FIG. 4 is a vertical cross-sectional side view showing a state before transporting a flipped-up booklet while turning the page to the upstream side opposite to the transport direction.

FIG. 5 is a side view showing a relationship between a roller guide and a page turning roller.

FIG. 6 is a side view illustrating a permissible range in which a lower outer periphery of the page turning roller is opened.

FIG. 7 is a flowchart showing the sequence of a book turning operation.

FIG. 8 shows a conventional example, and is a longitudinal side view showing a process of transporting a booklet.

FIG. 9 is a vertical sectional side view showing a state where pages of a booklet are turned up.

FIG. 10 is a vertical cross-sectional side view showing a state of transition to turning over.

FIG. 11 is a side view showing a state where a turned page is pulled in by a turning roller.

FIG. 12 is a side view illustrating a relationship between a conventional roller guide and a page turning roller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Booklet conveyance path 2 Booklet 6-9 Booklet conveyance member 10 Turning roller 12 Booklet pressing surface 13 Swing guide 18 Roller guide 20 Opening part 21 Horizontal line 22 Projection part A Retreat position C Entry position

Claims (3)

[Claims] 1. A plurality of booklet transporting members arranged along a booklet transporting path, a forward / reversely rotatable turning roller disposed between adjacent booklet transporting members, and opposing the page turning roller. It has a booklet pressing surface and is driven in a rotational direction between a retracted position where the booklet pressing surface is substantially parallel to the booklet transport path and an advance position where the booklet pressing surface presses the booklet against the page turning roller. The swinging guide to be formed, an opening portion that opens a range over substantially a half circumference on a lower side of the page turning roller facing the booklet pressing surface is formed at a lower portion, and a center of the page turning roller is parallel to the booklet pressing surface. A protruding portion that protrudes in a chevron shape with a dimension longer than the radius of the page turning roller is formed in a portion extending from near the parallel line passing therethrough to a roller guide that displaces while maintaining a relative positional relationship immovable with the swing guide. And comprising Page turning device. 2. The roller guide according to claim 1, wherein the open portion of the roller guide is formed in a shape that opens an outer periphery below ± 15 ° with respect to a parallel line passing through the center of the page turning roller in parallel with the booklet pressing surface. Item 7. The page turning device according to Item 1. 3. A process in which the booklet is conveyed in the discharge direction by the booklet conveying member from the time when the page of the booklet is turned up by the page turning roller is moved in the booklet conveying direction of the booklet conveying member. 3. The page turning apparatus according to claim 1, wherein the page turning apparatus is configured to be driven in the same direction as the booklet conveyance direction in synchronization with the booklet conveyance direction.