JPS6237743Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a printer used for ECR (electronic cash register), and in particular to a cover opening/closing mechanism for an ECR printer that issues receipt paper.

In addition to the printing mechanism that prints original characters, ECR printers also have a stamp mechanism that prints stamps.
In most cases, an auxiliary mechanism such as a cutter mechanism is required to cut the receipt paper, and in conventional printers, the auxiliary mechanism, especially the cutter mechanism, cuts the receipt paper over the printing mechanism and a cover fixed with screws, etc. The cutter blade side and the cutter receiving blade side are separated and fixed respectively, and when assembling the cutter blade side and the cutter receiving blade side are fixed separately. To adjust the position of the cutter blade and cutter receiving blade, which requires fine adjustment during assembly, the cutter blade side and cutter receiving blade side are fixed separately while attached to the printing mechanism. It was necessary to individually adjust the receiving blade side, which sometimes hindered mass production.

In addition, in actual use at stores, the cutter blade side and the cutter receiving blade side are fixed on the cover to prevent paper jams, especially paper jams caused by holding the receipt paper in the hand when feeding the paper for issuing receipts. Therefore, in case of a paper jam that occurs between the printing mechanism and the cover, it is necessary to remove the cutter blade side or the cutter receiving blade side and remove the paper, and when reassembling the cutter blade, it is difficult to adjust the cutter blade and a service person is required. In reality, it is very inconvenient to have to ask someone else to remove the jammed paper or use tweezers to remove the jammed paper. This invention improves mass productivity by unitizing the cutter mechanism and stamp mechanism on the cover, and also allows the unit to be opened and closed around the fulcrum shaft to easily remove jammed paper. The objective is to obtain a cover opening/closing mechanism that can be opened and closed.

This idea will be explained using examples.

FIG. 1 is a perspective view showing the present invention as a whole. The main body of the printing mechanism 1 has a printing head 1a that is swept in the direction of arrow A, and receipt paper 2 and journal paper 3 that are fed in the direction of arrow B. The cover 4 is located above the printing head 1a and is supported by a fulcrum shaft 5 fixed to the printing mechanism main body 1, and the fulcrum shaft 5 is a guide shaft that sweeps the printing head 1a. It doesn't matter.

The cover 4 can be opened and closed in the direction of the arrow C, and is structurally constructed as one piece with the cover 4 and the other end 4a, and the guide stand 4b for the journal paper 3 and the cutter receiving blade 4.
Both c and c have a one-piece structure. Further, on the upper part of the cover 4, there is a stamp 8 that operates in the direction of the arrow E as a stamp mechanism, and a stamp solenoid 9 as its power source, and a cutter 6 that operates in the direction of the arrow E as a cutter mechanism is located at the bottom of the cutter guide plate 7. It is mounted on the cover 4 together with a cutter solenoid 10 as its power source. It is easy to imagine that if the cover 4 is opened and closed in the direction of arrow C, the stamp mechanism and cutter mechanism will also move in the same way.

The cover attachment screw 12 is used to attach the cover to the printing mechanism main body 1, and may be a general locking mechanism.

The cassette ribbon 11 is attached to the printing mechanism main body 1, and the mechanism may be a general spool type ribbon.

Figure 2 is a sectional view taken along line GG in Figure 1, showing the receipt paper 2.
This is a diagram to make the state of the paper jam more clear, and is a diagram with the cover 4 closed. A stamp 8 as a stamp mechanism is mounted on the cover 4, and a stamp solenoid 9 as a power source thereof.A cutter blade 6 as a cutter mechanism is mounted on a cutter guide frame 13 mounted on the cover 4.A cutter guide plate 7 is mounted on the cutter guide frame 13 mounted on the cover 4. A cutter receiving blade 4c, which is also disposed at the other end of the cover 4 and is integrally constructed with the cover 4, is disposed with the receipt paper 2 interposed therebetween. The front part of the head 1a has a receipt paper 2 and a platen 1b, which feeds the receipt paper 2 in the direction of arrow B by rotating the paper feed roller 14 inside the printing mechanism body 1 in the downward direction of the arrow. Indicates that a paper jam has occurred at the front.

FIG. 3 is a sectional view taken along the line G-G' in FIG. 1, showing the cover 4 in an open state, and shows that jammed paper can be easily removed. The cover 4 can be opened in the direction of arrow C with the fulcrum shaft 5 as the center of rotation, and jammed paper can be easily pulled out and removed from the top.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the present embodiment as a whole;
FIG. 2 is a sectional view taken along the line GG' in FIG. 1, showing a state in which the cover is closed. FIG. 3 is a cross-sectional view taken along line GG' in FIG. 1, showing a state in which the cover is open.

Claims (1)

[Scope of utility model registration request] A printer comprising a stamp member disposed on a cover, a cutter blade member, and a cutter blade receiving member that receives the cutter blade member, and a recording paper is sent out between the cutter blade member and the cutter blade receiving member, A printer cover opening/closing mechanism in which the cover can be opened and closed about a fulcrum while maintaining a relative positional relationship between the stamp member/cutter blade member and the cutter receiving member.