JPH0523997A - Cutter unit - Google Patents

Abstract

PURPOSE:To promote the miniaturization, handleability and safety. CONSTITUTION:This cutter unit is provided with a reference blade 11 installed free of reciprocation along a sheet surface of paper, a movable blade 21 installed rotatably with this reference blade 11, a first driving means 31 reciprocating the reference blade 11 together with the movable blade 21, and a second driving means 41 turning the movable blade 21 as far as a specified angle in the specified direction with the movement of the reference blade 11.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a cutter device.

[0002]

2. Description of the Related Art FIG. 3 shows a schematic structure of a conventional cutter device.

In the figure, 2 is a fixed blade and 3 is a movable blade. The movable blade 3 is provided so as to be reciprocally rotatable about the support shaft 4.

A solenoid 5 is a means for rotating the movable blade 3 toward the fixed blade 2. Further, 6 is a return spring, which serves to return the movable blade 3 to the standby position shown by the solid line in the figure after cutting the paper.

In order to cut the paper P such as roll paper into a predetermined length, first, the paper P is set between the fixed blade 2 and the movable blade 3 in a direction perpendicular to the paper surface in the drawing. Next, in this state, the solenoid 5 is driven to rotate the movable blade 3 toward the fixed blade 2 in the counterclockwise direction in the figure. Then, the sheet P is sheared by the movable blade 3 and the fixed blade 2.

[0006]

By the way, the above-mentioned conventional cutter device has a drawback in that the fixed blade 2 and the movable blade 3 have to be longer than the width of the paper due to the structure thereof, and therefore the size of the cutter becomes large. ..

Further, in order to position such a long movable blade 3 at the standby position, it is necessary to secure a vast empty space in the height direction, which also leads to an increase in size.

Further, in the conventional cutter device, the paper P
Since the sheet is cut by being sandwiched between the fixed blade 2 and the movable blade 3, it is necessary for the operator to pass the sheet P between the fixed blade 2 and the movable blade 3 by hand, which is troublesome and complicated. It is also dangerous.

In view of the above circumstances, an object of the present invention is to provide a cutter device capable of smoothly cutting a paper while achieving downsizing and improvement in handleability and safety.

[0010]

SUMMARY OF THE INVENTION According to the present invention, there is provided a reference blade which is reciprocally movable along a paper surface of a sheet, a movable blade which is rotatable with respect to the reference blade, and the reference blade. Drive means for reciprocating the movable blade together with the movable blade, and second drive means for rotating the movable blade in a predetermined direction by a predetermined angle as the reference blade moves.

[0011]

According to the present invention, when the paper is cut, the first drive means is used to move the reference blade together with the movable blade along the paper surface of the paper, and the second drive means is used to rotate the movable blade toward the reference blade. To move. Then, the paper is sheared by the reference blade and the movable blade as the reference blade moves.

As described above, since the reference blade and the movable blade shear the paper while moving along the paper surface of the paper, it is not necessary to make the length of each blade equal to or larger than the paper width, and the length should be considerably shortened. You can Therefore, the space in the height direction required to swing up the movable blade to position it at the standby position is considerably smaller than that of the conventional cutter device.

Further, since the reference blade and the movable blade move with respect to the paper to perform the cutting work, it is not necessary to pass the paper between the two blades when setting the paper. Therefore, it is possible to improve handleability and safety.

As a result, it is possible to smoothly cut the paper while achieving downsizing and improvement in handleability and safety.

[0015]

An embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the cutter device according to this embodiment includes a reference blade 11, a movable blade 21, a first driving means 31, and a second driving means 41.

Here, the reference blade 11 is provided so as to be reciprocally movable in the directions of arrows F and R along the paper surface of the paper P.

The movable blade 21 is rotatably provided with respect to the reference blade 21 via a support shaft 25.

The first drive means 31 is means for reciprocating the reference blade 11 together with the movable blade 21.

In this embodiment, the first driving means 31
Is a screw shaft 32, a nut member 33, and a guide rail 3.
It is configured to include 4. The screw shaft 32 extends in the directions of arrows F and R along the paper surface of the paper, and is rotatably engaged with a nut member 33 provided on the reference blade 11 side.
The guide rail 34 is a member for moving and guiding the reference blade 11 in the directions of arrows F and R. The screw shaft 32 is
It is configured to be rotated clockwise and counterclockwise by a motor (not shown).

When the motor is driven to rotate the screw shaft 32 in the clockwise and counterclockwise directions, the reference blade 11 reciprocates in the horizontal directions of arrows F and R via the nut member 33 and the guide rail 34. To be done.

Further, the second driving means 41 is provided with a movable blade 21.
Is a means for rotating the reference blade 11 in a predetermined direction by a predetermined angle as the reference blade 11 moves.

In the present embodiment, the second drive means 41
Is composed of a cutter rail 42 and an engaging portion 45 provided on the movable blade 21 side.

The cutter rail 42 extends in the directions of arrows F and R, and a cam surface 43 is formed on the upper surface thereof. The cam surface 43 is a linear inclined surface whose height position increases proportionally in the sheet cutting direction (arrow F direction).

On the other hand, on the movable blade 21 side, the movable blade 21 is brought into contact with the cam surface 43 of the cutter rail 42 to support the support shaft 25.
An engaging portion 45 for rotating about is provided. The engaging portion 45 of the movable blade 21 is formed by the spring 4
6 is configured to be pressed against the cam surface 43 of the cutter rail 42 with a predetermined pressing force.

When the reference blade 11 moves together with the movable blade 21 in the sheet cutting direction (arrow F direction), the movable blade 2
1 cooperates with the engagement portion 45 and the cam surface 43 of the cutter rail 42 to rotate counterclockwise from the standby position shown in FIG. 1 by a predetermined angle while the reference blade 11 is moving.

Next, the operation will be described.

When the sheet P is cut, the reference blade 11 is moved together with the movable blade 21 using the first driving means 31 in the sheet cutting direction (F
Direction), and the movable blade 21 is rotated toward the reference blade 11 by using the second driving means 41. Then, the paper P is moved along with the movement of the reference blade 11,
And is sheared by the movable blade 21.

As described above, since the reference blade 11 and the movable blade 21 shear the paper P while moving along the paper surface of the paper P, it is not necessary to make the lengths of the both blades 11 and 21 equal to or larger than the paper width. ， It can be shortened considerably. Therefore,
The space in the height direction required to swing up the movable blade 21 and position it at the standby position is considerably smaller than that of the conventional cutter device.

Further, the reference blade 11 and the movable blade 21 have the paper P.
Since the cutting operation is performed by moving the sheet P with respect to each other, it is not necessary to pass the sheet P between the blades 11 and 21 when setting the sheet P. Therefore, it is possible to improve handleability and safety.

However, according to this embodiment, the reference blade 11 is provided so as to be reciprocally movable along the paper surface of the paper P,
Movable blade 2 rotatably provided with respect to the reference blade 11.
1, a first drive means 31 for reciprocating the reference blade 11 together with the movable blade 21, and a second drive means 4 for rotating the movable blade 21 in a predetermined direction by a predetermined angle as the reference blade 11 moves.
1, the length of the reference blade 11 and the movable blade 21 can be made considerably shorter than the width of the sheet, and the size can be reduced. Further, when setting the paper P, it is not necessary to pass it between the two blades 11 and 21, so that the handling property and safety can be improved.

Although the first driving means 31 is composed of the screw shaft 32, the nut member 33 and the like in the above embodiment, it may be structured as long as the reference blade 11 can be smoothly reciprocally rotated. Good.

The second drive means is the cutter rail 42.
Also, the movable blade 21 is constituted by the engaging portion 45 and the like provided on the side of the movable blade 21. However, any configuration may be adopted as long as the movable blade 21 can be rotated by a predetermined angle in a predetermined direction while the reference blade 11 is moving. ..

Further, the movable blade 21 is continuously rotated during the movement period of the reference blade 11. However, after the movable blade 21 is rotated by a predetermined angle to slightly cut the side edge of the sheet, the rotation is stopped. The posture may be maintained and the cutting may be performed.

[0035]

According to the present invention, the reference blade is provided so as to be reciprocally movable along the paper surface of the paper, the movable blade is provided so as to be rotatable with respect to the reference blade, and the reference blade is the movable blade. Since the first drive means for reciprocating the movable blade and the second drive means for rotating the movable blade in the predetermined direction by the predetermined angle with the movement of the reference blade are provided, the lengths of the movable blade and the reference blade can be adjusted. It can be made considerably shorter than the paper width dimension. Further, it is not necessary to pass the paper between the reference blade and the movable blade when setting the paper.

Therefore, it is possible to smoothly cut the paper while achieving downsizing and improvement in handleability and safety.

[Brief description of drawings]

FIG. 1 is a front view showing a main part of an embodiment of the present invention.

FIG. 2 is a plan view showing a main part of one embodiment.

FIG. 3 is a diagram showing a schematic configuration of a conventional cutter device.

[Explanation of symbols]

 11 Reference Blade 21 Movable Blade 31 First Driving Means 41 Second Driving Means

Claims (1)

Claim: What is claimed is: 1. A reference blade which is reciprocally movable along a paper surface of a sheet, a movable blade which is rotatable with respect to the reference blade, and the reference blade is movable. A cutter device comprising: a first driving unit that reciprocates together with a blade; and a second driving unit that rotates the movable blade in a predetermined direction by a predetermined angle as the reference blade moves.