JP2000296496A - Cutter device and printer - Google Patents

Abstract

(57) [Problem] To provide a cutter device and a printer that do not require replacement of a rotary blade and that can easily change a full cut of a full cut and a partial cut of a partial cut. SOLUTION: A cutter device 6 is rotatably supported, a rotary blade 10 having a notch 10a formed in a part of a blade formed on the circumference, and a recording sheet S together with the rotary blade 10.
, A carriage 11 for moving the rotary blade 10 along the cut line, an eccentric guide shaft 12 for switching the cutting depth of the rotary blade 10 with respect to the recording sheet S, and the like. You.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter device for cutting a sheet material and a printer using the same.

[0002]

2. Description of the Related Art P set at an accounting counter of a retail store or the like.
The OS register has a printing unit for issuing a receipt (receipt) at the end of settlement. The receipt paper is generally stored as roll paper, and as mechanisms for separating the receipt, there are a) a tear bar method in which an operator cuts the sheet by hand, and b) an automatic cutter method in which the sheet is cut off electrically after printing.

[0003] When a customer does not request a receipt, the tear-bar method leads to one receipt from the previous issuance, so that unnecessary receipts can be easily disposed of. But,
In the automatic cutter method, the receipt is cut into small pieces every time the payment is made, so that the storage and handling of the unnecessary receipt becomes extremely complicated.

Therefore, a partial cut method for cutting a receipt so as to connect only a part of the receipt without cutting the whole receipt of attention has attracted attention. This cutting method has the advantage that when the receipt is handed, the receipt is easily cut and the cut surface is clean, and when the receipt is unnecessary, it is connected to one, so that the receipt can be easily cleaned up.

[0005] Such partial cuts having a fine cutting pitch are also referred to as perforations, and are used in many fields other than receipts, such as advertising flyers, magazine inserts, questionnaire sheets, and toilet paper.

As a related prior art, Japanese Patent Application Laid-Open No. 10-2
9193, JP-A-6-238596, JP-A-62-2
No. 70170, Japanese Unexamined Patent Publication No. 61-3158, Japanese Utility Model Application Laid-Open No. 62
No. 144191.

[0007]

Problems to be Solved by the Invention
No. 3 proposes a circle cutter which cuts a long sheet by attaching a disk-shaped moving blade to a timing belt stretched between pulleys and reciprocating the moving blade. However, since the circle cutter is of a full cut type in which the entire sheet is cut, the above-described problem cannot be solved.

Japanese Unexamined Patent Publication No. 6-238596 proposes a roll recording paper cutting apparatus for forming perforations by reciprocating a rotary blade provided with a notch by belt driving. However, this device is a perforation-only cutter, and when it is desired to change to a full-cut method, it is essential to replace the rotary blade. JP-A-62-70170 and JP-A-61-3158 are also cutters dedicated to perforations.

Japanese Utility Model Application Laid-Open No. 62-144191 discloses a rotary blade that is moved linearly along a groove of a feed shaft.
A perforation is formed by replacing the saw blade with a circular blade.

An object of the present invention is to provide a cutter device which does not require replacement of a rotary blade and which can easily change a full cut of a full cut and a partial cut of a partial cut, and a printer using the same.

[0011]

SUMMARY OF THE INVENTION The present invention is directed to a rotary blade which is rotatably supported and has a notch formed in a part of a blade formed on the circumference, and a rotary blade for sandwiching a sheet material together with the rotary blade. A cutter device comprising: an opposing blade; a carriage mechanism for moving the rotary blade along a cut line; and a rotary blade moving mechanism for switching a cutting depth of the rotary blade with respect to a sheet material.

According to the present invention, the relative position between the rotary blade and the sheet material can be switched by the rotary blade moving mechanism,
Easily select full cut for full cut or partial cut for partial cut. That is, if the cutting depth of the rotary blade with respect to the sheet material is adjusted so as to be halfway through the notch, the bottom of the notch does not contact the sheet material, so that the partial cut mode is set. On the other hand, if the depth of cut of the rotary blade is adjusted to be equal to or greater than the depth of the notch, the full cut mode is set because there is no uncut portion in the notch.
Therefore, by switching the cutting depth of the rotary blade, a full cut or a partial cut can be easily set, and labor for replacing a dedicated rotary blade each time as in the related art can be omitted.

Further, the present invention is characterized in that a plurality of notches having different notch depths are formed on the circumference of the rotary blade.

According to the present invention, a plurality of notches having different notch depths are formed on the circumference of the rotary blade, and the notch depth of the rotary blade is adjusted stepwise according to the notch depth. It is possible to change the number of notches involved in the uncut portion, and it is possible to arbitrarily adjust the uncut amount of the partial cut. For example, if emphasis is placed on the ease of cutting of the partial cut portion, reduce the uncut portion and increase the uncut portion interval.If emphasizing the connection strength of the partial cut portion, increase the uncut portion and narrow the uncut portion. The degree of freedom of the partial cut is increased.

According to another aspect of the present invention, there is provided a printer including a sheet transport mechanism for transporting a sheet material, a printing mechanism for printing on the sheet material, and a cutter mechanism for cutting the sheet material passing through the printing mechanism. , The cutter mechanism is rotatably supported, a rotary blade having a notch formed in a part of the blade formed on the circumference, an opposing blade for sandwiching the sheet material with the rotary blade, and a rotary blade The printer includes a carriage mechanism for moving the rotary blade along a cut line, and a rotary blade moving mechanism for switching a cutting depth of the rotary blade with respect to the sheet material.

According to the present invention, the relative position between the rotary blade and the sheet material can be switched by the rotary blade moving mechanism,
Easily select full cut for full cut or partial cut for partial cut. That is, if the cutting depth of the rotary blade with respect to the sheet material is adjusted so as to be halfway through the notch, the bottom of the notch does not contact the sheet material, so that the partial cut mode is set. On the other hand, if the depth of cut of the rotary blade is adjusted to be equal to or greater than the depth of the notch, there is no uncut portion in the notch, and the full cut mode is set.
Therefore, by switching the cutting depth of the rotary blade, a full cut or a partial cut can be easily set, and labor for replacing a dedicated rotary blade each time as in the related art can be omitted.

[0017]

FIG. 1 is a sectional view showing the internal structure of a printer according to the present invention. The printer 1 includes a print head 2 that performs serial or line printing,
A platen 3 facing the print head 2 so as to sandwich the recording sheet S, a transport roller 4 for transporting the recording sheet S together with the platen 3, and a guide member 5 for guiding the recording sheet S
And a cutter device 6 for performing full cut or partial cut at a desired position on the recording sheet S that has passed through the print head 2. The recording sheet S before printing is mounted in a roll shape in the housing 8 and the cutter device 6
The recording sheet thus cut is discharged from the discharge port 7.

FIG. 2 shows the configuration of the cutter device 6 according to the present invention. FIG. 2 (a) is a plan view, FIG. 2 (b) is a front view, and FIG. 2 (c) is a side view. The disk-shaped rotary blade 10 is rotatably supported by the carriage 11. An endless timing belt 13 is stretched between the left and right pulleys 14 and 15, and the carriage 11 reciprocates by engaging with the upper or lower timing belt 13.

The pulley 14 has gears 16, 17a, 17,
The motor 18 is driven to rotate by the motor 19 via the motor 18. When a forward / reverse motor such as a pulse motor is used as the motor 19, the carriage 11 can be reciprocated by switching the rotation direction of the motor 19. In order to reduce the cost, when a one-way rotating motor such as a DC brush motor is used as the motor 19, Japanese Patent Application Laid-Open No.
As described in Japanese Patent No. 9193, a reciprocating movement of the carriage 11 can be realized by mounting a mechanism for switching engagement of the timing belt 13 with the upper side or the lower side between the forward path and the return path of the carriage 11.

At the home position of the carriage 11,
A position sensor 30 such as a microswitch is provided to detect whether the carriage 11 has returned.

A fixed blade 20 in the form of a flat plate is arranged along the moving direction of the rotary blade 10. When the recording sheet S passes over the fixed blade 20, the rotary blade 10 slides on the edge of the fixed blade 20, thereby sandwiching and cutting the recording sheet S. Note that a configuration in which a second rotary blade is provided on the carriage 11 instead of the fixed blade 20, and the pair of rotary blades move together to cut and sandwich the recording sheet S is also possible.

An eccentric guide shaft 12 for guiding the reciprocating movement of the carriage 11 is provided in parallel with the timing belt 13. The eccentric guide shaft 12 is connected to the right operation lever 12.
The carriage 11 is eccentrically supported so that the vertical position can be adjusted by the angular displacement operation a. The vertical position of the carriage 11 is switched by this operation, so that the relative position between the rotary blade 10 and the fixed blade 20 changes. In addition, the depth of cut of the rotary blade 10 with respect to the recording sheet S can be adjusted. FIG.
In (c), the illustration of the operation lever 12a is omitted. Instead of the manual operation using the operation lever 12a, a configuration is also possible in which the rotary blade 10 and the eccentric guide shaft 12 are displaced by CPU control using another motor, an electromagnetic plunger, or the like.

A sharp blade is formed on the circumference of the rotary blade 10, and a notch 10a is formed in a part thereof. Therefore, when the operating lever 12a is operated such that the cutting depth of the rotary blade 10 with respect to the recording sheet S is in the middle of the notch 10a, the bottom of the notch 10a does not contact the recording sheet S. Become. on the other hand,
When the operating lever 12a is operated so that the cutting depth of the rotary blade 10 is equal to or greater than the depth of the notch 10a, the notch 10
Since there is no uncut portion a, the full cut mode is set.

FIG. 3 is an explanatory diagram showing the operation in the partial cut mode. When the eccentric guide shaft 12 is displaced upward, the carriage 11 and the rotary blade 10 are also positioned upward, and the passage position of the recording sheet S is set at a position shallower than the depth of the notch 10a of the rotary blade 10. When the carriage 11 is moved to the right in this state, the rotary blade 10 moves to the right while rotating, and an uncut portion is generated in a portion where the notch 10a passes.

FIG. 4 is an explanatory diagram showing the operation in the full cut mode. When the eccentric guide shaft 12 is displaced downward, the carriage 11 and the rotary blade 10 are also positioned downward,
The passing position of the recording sheet S is set at a position deeper than the depth of the notch 10a of the rotary blade 10. When the carriage 11 is moved to the right in this state, the rotary blade 10 is moved to the right while rotating, so that the recording sheet S is cut not only at the notch 10a but also at the notch 10a. In this manner, a full cut for cutting the entire recording sheet S can be realized.

FIG. 5 is an explanatory diagram showing the relationship between the position of the rotary blade 10 and the cutting pitch. FIG. 5A shows the recording sheet S.
Is set at the position PA, the notch 10 of the rotary blade 10
Since the cut is deeper than a, a full cut line XA is formed on the recording sheet S as shown in FIG.

When the recording sheet S is set at the position PB in FIG. 5A, the cut is shallower than the notch 10a of the rotary blade 10. Therefore, as shown in FIG. The cutting line XB of the partial cut is formed. In this manner, partial cutting can be realized in which the cutting pitch length substantially matches the circumferential length of the rotary blade 10, and the uncut ratio substantially corresponds to the width of the cutout portion 10a.

When the recording sheet S is set at the position PC shown in FIG. 5A, the circumferential blade of the rotary blade 10 also does not contact,
The recording sheet S is not cut.

FIG. 6 shows a rotary blade 10 having a plurality of notches.
FIG. 4 is an explanatory diagram showing a relationship between the position of a circle and a cutting pitch. The rotary blade 10 has a plurality of notches 10a, 10
b is formed, in which the notch 10b is
An example in which the notch is cut deeper than a is shown.

When the recording sheet S is set at the position PA in FIG. 6A, the cut is deeper than the notches 10a and 10b of the rotary blade 10, so that as shown in FIG. Is formed with a full cut line XA.

When the recording sheet S is set at the position PB in FIG. 6A, the cut is deeper than the notch 10a but is shallower than the notch 10b.
As shown in FIG. 7, a cut line XB of a partial cut is formed on the recording sheet S.

When the recording sheet S is set at the position PC shown in FIG. 6A, the cut is shallower than the notches 10a and 10b. Therefore, as shown in FIG. Is formed. The cutting line XC has a notch 10 in comparison with the cutting line XB.
The uncut portion a increases, and the pitch is narrowed.

When the recording sheet S is set at the position PD in FIG. 6A, the circumferential blade of the rotary blade 10 does not contact,
The recording sheet S is not cut.

Thus, two notches 1 having different notch depths
By providing 0a and 10b, the uncut amount of the partial cut can be adjusted. Here, two notches 10
Although the example in which a and 10b are provided is shown, three or more cutouts can be formed.

[0035]

As described in detail above, according to the present invention, the relative position between the rotary blade and the sheet material can be switched by the rotary blade moving mechanism, and the full cut of the full cut and the partial cut of the partial cut can be performed. Easy to choose. Therefore, it is possible to save labor for replacing the dedicated rotary blade each time as in the related art.

Further, by forming a plurality of notches having different notch depths on the circumference of the rotary blade and adjusting the cut depth of the rotary blade in a stepwise manner, the number of notches involved in uncut portions can be reduced. It can be changed, and the uncut amount of the partial cut can be adjusted arbitrarily.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an internal configuration of a printer according to the present invention.

2A and 2B show a configuration of a cutter device 6 according to the present invention, wherein FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a side view.

FIG. 3 is an explanatory diagram showing an operation in a partial cut mode.

FIG. 4 is an explanatory diagram showing an operation in a full cut mode.

FIG. 5 is an explanatory diagram showing a relationship between a position of a rotary blade 10 and a cutting pitch.

FIG. 6 is an explanatory diagram showing a relationship between a position of a rotary blade 10 having a plurality of notches and a cutting pitch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printer 2 Print head 3 Platen 6 Cutter device 10 Rotating blade 11 Carriage 12 Eccentric guide shaft 13 Timing belt 16, 17a, 17, 18 Gear 19 Motor 20 Fixed blade 30 Position sensor

Claims (3)

[Claims] 1. A rotary blade which is rotatably supported and has a notch formed in a part of a blade formed on the circumference, an opposing blade for sandwiching a sheet material together with the rotary blade, and a rotary blade is cut. A cutter device comprising: a carriage mechanism for moving along a line; and a rotary blade moving mechanism for switching a cutting depth of the rotary blade with respect to a sheet material. 2. A plurality of notches having different notch depths are formed on the circumference of the rotary blade.
The cutter device as described. 3. A printer comprising: a sheet conveying mechanism for conveying a sheet material; a printing mechanism for printing on the sheet material; and a cutter mechanism for cutting the sheet material passed through the printing mechanism. The mechanism is rotatably supported, a rotating blade with a notch formed in a part of the blade formed on the circumference, an opposing blade for sandwiching a sheet material with the rotating blade, and a rotating blade as a cutting line A printer, comprising: a carriage mechanism for moving the rotary blade along the rotary blade; and a rotary blade moving mechanism for switching a cutting depth of the rotary blade with respect to the sheet material.