JPS5932556Y2 - cutter device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cutter device that can selectively cut paper and form perforations.

Generally, a printer built into a register or the like is equipped with a counter device for perforating the receipt paper used in the printer.

By the way, when making perforations using this counter device, it is recommended that the dimension A of the perforation 2 cut into the paper 1 be as large as possible with respect to the seam 30 dimension B, as shown in FIG. 1, in order to increase the ease of cutting. desirable.

For example, when making perforations with a canter 5 having a deep cutting edge 4 as shown in Figure 2a, in order to make dimension A larger than dimension B, it is necessary to cut deeply into the paper 1 with the cutting edge 4. Therefore, there is a problem that the moving distance S of the cutter 5 must be increased.

Furthermore, when making perforations with a cutter 7 having a shallow cutting edge 6 as shown in FIG. ,
There were problems such as dull cutting ability.

It would also be desirable to be able to selectively cut the paper and form perforations by switching the amount of movement of the canter, but since the amount of movement becomes increasingly large during cutting, Further efforts will be needed to reduce the size of the

The present invention was developed in view of the above circumstances, and it is possible to switch between paper cutting and perforation formation, and even if the cutter travels a short distance, the perforation size is sufficiently large compared to the seam size, making it easy to cut. It is an object of the present invention to provide a cutter device that can make a cut and has good cutting properties.

Embodiments of the present invention will be described below with reference to FIGS. 3 to 5.

In the figure, reference numeral 10 denotes a fixing base for the main body of the cutter device, and an insertion hole 12 for the cutter 11 is bored in this fixing base 10.

An outer cutter 13 that faces continuously at a predetermined interval and a paper presser 15 that holds the outer cutter 13 and presses the paper 14 are provided above the fixed base 10.

This paper presser 15 has an insertion hole 1 of the fixing base 10.
An insertion hole 17 for the cutter 11 is bored at a position corresponding to 2, and the outer cutter 13 is inserted at one end of the insertion hole 17.
One end of the is fixed in place.

A cutter guide 18 that supports the cutter 11 in a vertically movable manner is provided directly below the insertion hole 12 of the fixed base 10.

A canter lever insertion hole 19 is bored in the cutter guide 18, and the other end of the canter lever 20, whose one end is rotatably supported, is inserted into the canter lever insertion hole 19.
The cutter 11 is inserted into the center of the cutter 11 and pivoted to the center of the cutter 11.

A cam 21 comes into contact with the center of the canter lever 20.

This cam 21 has disks 22 and 23 having two different diameters, large and small.
The shaft 24 is rotatably inserted into a position eccentric from the center of these discs 22 and 23, and the disc 23
A pin 26 protruding from the shaft 24 is engaged with a notch 25 provided in the shaft 24 to transmit 1240 rotations of the shirt to the cam 21.

Further, a rotary cylinder 27 that is rotatably fitted into the shaft 24 is fixed to one end of the disk 22.

A groove 28 is provided in the circumferential direction on the outer periphery of the rotary cylinder 27, and the other end of a switching lever 29 whose one end is rotatably supported is inserted into the groove 28.

At the center of this lever 29 is an operating shaft 3 of a solenoid 30.
1 is engaged via an engagement wire 32.

By the way, as shown in FIG. 3, the cutter 11 is formed by forming a plurality of cutting blades 33 in the shape of a shallow V-shaped notch (cutout part 34) in the top end 34 of a triangular mountain shape continuously in the width direction. It is.

Note that the shaft 24 is driven by an electric motor (not shown).

According to such a configuration, when the paper 14 is inserted between the fixed base 10 and the outer blade 13, the electric motor is driven to rotate the shaft 24, and the solenoid 30 is in the OFF state, the canter lever 20 is turned off. Since the cam 210 comes into contact with the large disk 22, the cutter lever 20 is pushed upward every time the cam 21 rotates, and the tip of the cutter 11 is pushed up against the fixed base 10.
After passing through the insertion hole 12 of the paper presser 15 through the insertion hole 17 of the paper presser 15 and rising to the upper limit position shown in FIG.
descend to the position.

In other words, the cutter 11 reciprocates up and down with a large stroke as shown in the figure.

The paper sheet 14 is cut by the cutting blades 33, 34 of the can 3-11 and the outer blade 13.

Next, when the solenoid 30 is turned on, the switching lever 2
9 is attracted, and the cutter lever 20 comes into contact with the small disc 23 of the cam 21.

Therefore, the amount of reciprocating motion of the cutter 11 is reduced, and it moves up and down with a small stroke indicated by t in the figure, and the paper 14 is cut halfway by the cutting blade 33 of the cutter 11 as shown in FIG. The perforations 36 shown are inserted.

Incidentally, both sides of the notch blade 33 of this cutter 11 have sharp inclinations, so the cutting quality is good, and the top end of the notch blade 34 has a shallow V-shaped notch 34, so it is not possible to make a deep cut as in the conventional case. The perforation 36 is formed on the paper 14 with a smaller moving distance t than the moving distance t' of a canter having only a blade.
The 0 dimension allows a person to insert a perforation 36 which is sufficiently larger than the seam 370 dimension B and is easy to cut.

As described above, the present invention allows easy switching between paper cutting and perforation formation, and because it has multiple cutting blades with shallow V-shaped notches at the top of the triangular chevron, even if the cutter travels a short distance. The dimensions of the perforation are sufficiently large compared to the dimensions of the seam, allowing easy cutting, and the inclination of the cutting edge is sharp and has a good cutting edge.
equipment can be provided.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a state in which perforations are made in paper, Fig. 2 a and b are explanatory diagrams when perforations are made with a conventional counter, and Fig. 3 a and b are examples of the present invention. FIG. 4 is a schematic diagram showing the cutter of the same embodiment, and FIG. 5 is an explanatory diagram showing a state in which perforations are made by the cutter of the same embodiment. 11...Cutter, 33...Deep cutting tooth, 34...Notch.

Claims (1)

[Scope of utility model registration request] A canter formed by forming a plurality of cutting blades each having a shallow V-shaped notch at the top end of a triangular mountain shape and continuously forming them in the width direction, and a drive mechanism that reciprocates the cutter in the direction in which the cutting blades protrude. and a switching mechanism that switches between paper cutting and perforation formation by adjusting the amount of cutting movement of the cutter by the drive mechanism.