KR0129182Y1 - Paper cutting device of electronic cash register - Google Patents

Abstract

The present invention is to provide a paper cutting device that is sure the return operation of the cutter in cutting the paper of the electronic cash register and does not cause paper cutting defects, the worm wheel with a worm and worm wheel that is powered by a motor When the work is rotated by one cycle, the lever is actuated once and the upper cutter connected to the lever is actuated one time, so that the paper cutting between the lower cutter and the upper cutter can be cut quickly. It is to realize the product reliability that no cutting defects.

Description

Paper cutting device of electronic cash register

1 is a front view of the device of the present invention.

2 is a perspective view of main parts of the present invention.

Figures 3 and 4 (a), (b) is a back and front view illustrating the operation of the present invention.

(A) and (b) of FIG. 5 are main parts showing an operation state of a power cut detection structure of the device of the present invention.

* Explanation of symbols for main parts of the drawings

1: frame 2: motor

3: worm 4: worm wheel

4 ': wheeled boss 5: wheeled shaft

7: lever 12: upper cutter

12 ': Lower cutter 16: Plate spring

17: switch

The present invention relates to an apparatus for cutting paper of a printer in an electronic cash register (E.C.R), and more particularly, to a paper cutting device of an electronic cash register designed to ensure the operation of the cutter.

In general, since the paper cut in the printer portion of the electronic cash register is used as a receipt, frequent cutting operations are made, so that the certainty of the cutting function is ensured so that inconvenience is not caused.

However, in the conventional paper cutting device, in particular, the device described in US Patent No. 4,491,046, there is a problem that the paper is not cut properly when the cutter is operated up and down, and the return jam of the cutter is poor due to the paper jam phenomenon. This has led to the inconvenience of using the electronic cash registers and to the problems of product reliability.

The object of the present invention is to improve the product reliability by providing a paper cutting device of an electronic cash register in which the cutting and operation of the cutter are made reliably as mentioned in the introduction in view of the conventional problems as described above.

The present invention provides a lower cutter (Upper Cutter) and an upper cutter (Upper Cutter) to achieve the above object, the upper cutter according to the seesaw operation of the seesaw (Seesaw) movement by the worm and worm wheel The upper cutter is characterized in that the cutting operation and the return operation are made reliably by making the seesaw movement linked up and down to cut the paper.

The present invention will be described in more detail based on the accompanying drawings.

The device of the present invention is installed so that the worm 3 is rotated by the motor 2 on the rear side of the frame 1, and the worm wheel 4 which is engaged with and rotates with the worm 3 is installed below the worm 3.

The wheel shaft (5) provided on one side of the worm wheel (4) has a rear end slot (8) of the lever (7) installed on the frame (1) so that the seesaw movement from the lever hinge shaft (6) as a starting point. As the worm wheel 4 is rotated while being installed so as to be inserted, the lever 7 moves in a seesaw motion.

The connecting shaft 9 of the front end of the lever 7 passes through the hole 10 formed in the frame 1, and the upper end of the upper cutter 12 is installed on the front side of the frame 1 by the cutter hinge shaft 11. It is inserted into the rear end connecting groove 13 to transmit the seesaw movement force of the lever 7 to the upper cutter 12.

In the outer portion of the upper cutter 12, the spring force is supported by the spring support 14 and the front end portion 16a is fitted with the spring connection hole 15, so that the spring force is applied to the upper cutter 12. The lower cutter 12 is installed on the lower side.

Further, the wheel boss 4 'of the worm wheel 4 forms a circular curved surface portion 4a and a carting surface portion 4b, and the switch piece 17a is provided on one side of the wheel boss 4' formed as described above. A switch 17 which is operated in contact is provided.

When the present invention configured as described above with reference to Figure 3 as follows.

That is, the solid outlined state of FIG. 3 shows the initial state of the device of the present invention, in which the position of the wheel shaft 5 is at the top dead center position of the circumferential diameter.

Therefore, when the printing operation of the register printer is finished, the operation is started by applying power to the motor 2, and as the worm 3 rotates, the worm wheel 4 rotates clockwise as shown by the arrow in the drawing. The wheel shaft 5 is rotated in the bottom dead center position, and accordingly, the lever 7 is rotated around the lever hinge shaft 6 so that the rear end is lowered and the front end is raised as shown by the arrow.

Therefore, the operation of raising the rear end of the upper cutter 12 connected by the tip connecting shaft 9 by the above operation is successively operated, and thus the tip of the upper cutter 12 around the cutter hinge shaft 11. The blade portion 12a is rotated downward.

As shown in FIG. 4, the linkage operation is such that the tip blade portion 12a of the upper cutter 12 overlaps one side of the lower cutter 12 'when the wheel shaft 5 reaches the bottom dead center position as shown in FIG. 4. It is lowered to the furnace to cut the paper (not shown) passing between the upper and lower cutters 12 and 12 ', and the wheel shaft 5 is continuously rotated to return to the top dead center position as shown by the dotted line. In this operation, the tip connecting shaft 9 is lowered and the tip blade portion 12a of the upper cutter 12 is raised to return, thereby completing one cycle operation.

One cycle operation as described above is that the worm wheel 4 is made by one rotation operation, the wheel shaft 5 is passed through the bottom dead center position from the top dead center position to return to the top dead center position and stopped again. In this state, the rotation and stop operations are performed by the wheel boss 4 'and the switch 17.

In detail, the state in which the switch piece 17a is in contact with the carding surface portion 4b of the wheel boss 4 'as shown in FIG. 5 (a) forms an initial state, and the printing operation of the printer is When the power is applied by the control circuit (not shown), the worm wheel 4 is rotated as the motor 2 is driven, and the switch piece 17a is rotated as shown in FIG. 5 (b). The circuit is brought into contact with the circular curved surface portion 4a to form a state in which the power is continuously turned on.

Therefore, when the wheel shaft 5 returns to the top dead center position after passing through the bottom dead center position, the carting surface portion 4b comes into contact with the switch piece 17a again while the worm wheel 4 is rotated once. Since the switch 17 detects this, the switch 17 is turned off to cut off the power supplied to the motor 2 by the control program, so that the motor 2 is stopped and thereby the worm wheel 5 ) Becomes a system that stops only one rotation and has a system of paper cutting by one cycle.

In addition, the plate spring 16 installed on the side surface of the upper cutter 12 has its spring force pushing the upper cutter 12 so that the upper cutter 12 is in close contact with the lower cutter 12 'during paper cutting. Since it becomes a state that the paper cutting is to be made good.

As described above, the present invention forms a structure in which the worm (3) and the worm wheel (4), and the lever (7) and the upper cutter (12), which are powered by the motor (2), are organically connected to each other. Therefore, it is possible to provide a paper cutting device in which the return operation of the upper cutter 12 is made reliably as well as to improve the reliability of the product.

And the device of the present invention has been described as a paper cutting device of the electronic cash register, but it can be applied to electronic devices such as a facsimile that can have a paper cutting structure similar to the cash register, so it should be protected without greatly departing from the claims. .

Claims (6)

In the paper cutting device of the electronic cash register which cuts the paper passing between the upper cutter 12 and the lower cutter 12 'driven by the motor, the paper cutting device is a worm (3) powered by the motor (2). ) Rotates the worm wheel (4), by the rotation of the worm wheel (4) is transferred to the center of the lever hinge shaft (6) and the seesaw movement of the lever (7), A paper cutting device for an electronic cash register, characterized in that the seesaw kinetic force is configured to cut the paper by operating the upper cutter 12 connected to the connecting shaft 9 about the cutter hinge shaft 11. The method of claim 1; Power transmission from the worm wheel (4) to the lever (7), the wheel shaft (5) provided on one side of the worm wheel (4) is inserted into the rear end mounting hole (8) of the lever (7) Paper cutting device of an electronic cash register, characterized in that configured to be delivered. The method of claim 1; The upper cutter (12) is provided with a connecting groove (13) connected to the front end connecting shaft (9) of the lever (7), the paper cutting device of the electronic cash register, characterized in that the power is transmitted. 2. The paper cutting device of an electronic cash register according to claim 1, wherein the paper cutting is carried out by one cycle in which the worm wheel (4) is stopped after one rotation. 5. The switch piece (17a) according to claim 1 or 4, further comprising a wheel boss (4 ') having a circular curved surface portion (4a) and a carting surface portion (4b) on the worm wheel (4) and detecting the same. A paper cutting device for an electronic cash register comprising a switch (17) configured to stop the worm wheel (4) after one cycle of rotation. The electronic cutter of claim 1, wherein the upper cutter 12 includes a plate spring 16 that is supported by the spring support 14 and presses the upper cutter 12 toward the lower cutter 12 ′. Paper cutting device of cash register.