KR950007199Y1 - Trigger lever noise prevention apparatus for cash register - Google Patents

Abstract

No content.

Description

Trigger Lever Noise Canceling Device for Cash Register Printer

1 is a schematic perspective view showing a paper conveying system part of a general cash register printer.

2 is an enlarged sectional view showing main parts of a trigger lever of a conventional printer.

Figure 3 is an enlarged cross-sectional view showing the main portion of the trigger lever of the cash register printer according to the present invention.

4 is a schematic front sectional view of the stopper of the present invention.

* Explanation of symbols for main parts of the drawings

1: frame 2: paper conveying system

21: trigger lever 22: lever guide bar

23: yoke 24: spring

25a, 25b: upper and lower bobbin support 26: bobbin

27, 27 ': protrusion 28: compression spring

29: stopper

The present invention relates to a trigger lever noise preventing device for preventing a noise generated when a trigger lever (Trriger Lever) for conveying a predetermined amount of paper in a cash register printer contacts the bobbin. On the lower surface of the bobbin support provided on the upper and lower sides of the bobbin of the trigger lever, protrusions are projected to the upper surface of the lower bobbin support and the bottom of the upper bobbin support, respectively, to compress the compression spring, and to install a rubber stopper on the upper surface of the protrusion of the upper bobbin support. The lower end of the trigger lever is brought into contact with the stopper to prevent noise caused by the contact of the trigger lever and the upper bobbin support for controlling the paper feed gear during paper transfer of the cash register printer, and the trigger lever and the upper bobbin support. Trigger lever caused by contact of And it relates to a trigger lever noise prevention device of a cash register printer to prevent damage to the bobbin to improve the reliability of the product.

In the structure of a trigger lever installed in a conventional cash register printer and intermittently intercepting a paper feed gear in order to transfer paper by a predetermined amount, it is provided on the frame 1 as shown in FIGS. 1 and 2. A lever guide bar 12 is placed in front of the trigger lever 11 of the paper feed system 2, and a yoke 13 is formed at one side of the lever guide bar 12 so that the front of the trigger lever 11 and the spring 14 are formed. ), And the bobbin 16 is installed on the upper and lower bomin supports 15a, 15b at the lower side of the trigger lever 11 so that the trigger lever 11 is raised and lowered when the bobbin is applied with current. Made of structure.

Unexplained reference numeral 17 in the drawings is a guide piece for guiding the support lever when the trigger lever 11 moves up and down.

The conventional trigger lever having the structure as described above, when the current is applied to the bobbin 16 provided on the upper and lower bobbin support (15a, 15b) in order to transfer the paper, the trigger lever 11 by the principle of the electromagnet It descends along the guide piece 17 at the rear and comes into contact with the upper bobbin support 15a, and when the current is cut off from the bobbin 16, the restoring force of the spring 14 installed in front of the trigger lever 11 To return to the position.

At this time, when the trigger lever 11 descends and contacts the upper bobbin support 15a, abnormal noise is generated, thereby lowering reliability of the product, and the trigger lever 11 raises the upper bobbin support 15a. There was a large problem in that the impact contact is generated in the trigger lever 11 and the bobbin 16 itself, and the breakage of the parts is frequently caused.

The present invention has been made to improve the conventional problems as described above, the object of which is to project the projections to the upper surface of the lower bobbin support and the bottom of the upper bobbin support at the rear of the bobbin support provided on the upper and lower bobbin of the trigger lever, respectively. It protrudes and compresses the compression spring, and a rubber stopper is installed on the upper surface of the upper bobbin support so that one end of the lower trigger lever comes into contact with the stopper, thereby triggering the paper transfer gear to be interrupted during the paper transfer of the cash register printer. Trigger of the printer for cash register which prevents noise generation due to the contact of the lever and the upper bobbin support, and improves the reliability of the product by preventing the damage of the trigger lever and the bobbin caused by the contact of the trigger lever and the upper bobbin support. To provide a lever noise suppression device All.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a front sectional view for explaining the trigger lever noise suppression device of the cash register printer according to the present invention, Figure 4 is a schematic perspective view of the stopper of the present invention, the paper transfer system installed on the frame (2) Lever guide bar 22 is placed in front of the trigger lever 21 of the (), and the yoke 23 is formed below the lever guide bar 22 to be coalesced in front of the trigger lever 21 and the spring 24, In the structure below the trigger lever 21, the bobbin 25 is mounted on the upper and lower bobbin supports 25a and 25b so that the trigger lever 21 moves up and down when the bobbin is applied with current. Protruding portions 27 and 27 'to the bottom of the upper bobbin support 25b and the bottom surface of the upper bobbin support 25a toward the rear of the upper and lower bobbin supports 25a and 25b respectively installed on the upper and lower sides. Protrudes and compresses the compression spring 28, and the upper bobbin support 25a It comprises a configuration in which ever one end in contact with the portion of the trigger lever 21 to fall the stopper rubber member 29 with the upper surface protrusion 27 is chakseol.

Unexplained reference numeral 30 in the drawings is a guide piece for guiding and supporting it when the trigger lever 21 is raised and lowered.

Referring to the operation and effects of the present invention composed of such a structure as follows.

That is, as shown in FIGS. 3 and 4, when a current is applied to the bobbin 26 provided between the upper and lower bobbin supports 25a and 25b to convey the paper, the principle of the electromagnet is applied. As a result, the rear of the trigger lever 21 descends along the guide piece 30 to the upper bobbin support 25a. At this time, a rubber stopper 29 is installed on the upper bobbin support 25 and the compression spring is lowered therefrom. Since the 28 is coalesced, even if the lower end of the trigger lever 21 comes in contact with the stopper 29, the impact force is reduced by the rubber material, the stopper 29, and the compression spring 29. And noise is prevented.

Meanwhile, as described above, the upper end is lifted by the lowering of the lower end of the trigger lever 21 to release the paper feed gear so that the paper is conveyed.

Therefore, the trigger lever 21 and the bobbin 26 are not applied to the trigger force at all and the life thereof can be extended.

As described above, according to the trigger lever noise preventing device of the cash register printer according to the present invention, it prevents the occurrence of noise due to the contact of the trigger lever and the upper bobbin support part which intercepts the paper transfer gear when transferring the paper of the cash register printer. In addition, there is an excellent effect of improving the reliability of the product by preventing the breakage of the trigger lever and bobbin generated by the contact of the trigger lever and the upper bobbin support.

Claims (1)

A lever guide bar 22 is placed in front of the trigger lever 21 of the paper feed system 2 installed on the frame 1, and a yoke 23 is formed on one side of the lever guide bar 22 so that the trigger lever (21) The front and spring 24 is installed, and the lower side of the trigger lever 21, the bobbin 26 is mounted on the upper and lower bobbin support (25a, 25b), the trigger lever 21 when the current of the bobbin is applied In the structure that is raised and lowered, the upper and lower bobbin support (25a) of the lower bobbin support (25b) to the rear of the upper and lower bobbin support (25a, 25b) provided on the upper and lower sides via the bobbin 26. Protruding the compression springs 28 by protruding the projections 27 and 27 'to the bottom of the bottom surface, and the rubber stopper 29 is installed and lowered to the upper surface of the protrusions 27 of the upper bobbin support 25a. A flashlight, characterized in that the configuration made to be in contact with one end of the trigger lever 21 Noise protection device of the trigger lever appointed printer.