JPS62184872A - Printer - Google Patents

Abstract

PURPOSE:To reduce the size and cost of a printer, by positioning a printing head by the contact of a carrier with a platen. CONSTITUTION:A lower part of a carrier 2 is extended to the lower side of a platen 4. Rollers 2a are fitted to a face of the extended part 2-1 opposed to the platen 4 so that a printing head 3 can be positioned by bringing the rollers 2a into contact with the platen 4. For this purpose, a printing head 3 is fixed to a rear upper part of the carrier 2 so as to apply a clockwise turning force to the carrier 2. The carrier 2 is slided on a guide shaft 1, with the rollers 2a in contact with the platen 4. The rollers 2a roll in contact with the platen 4, so that they do not hinder the carrier 2 from sliding. Accordingly, the carrier 2 can be mounted on the single guide shaft 1, and reductions in the size and cost of a printer can be contrived.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer device, and more particularly to the structure of a carrier for fixing a print head and a guide shaft for slidably installing the carrier.

[Prior Art] Conventional printer devices generally have a structure in which printing is performed by moving a print head mounted on a carrier while facing a platen. It was slidably guided by the guide shaft of the book. Also, it uses two guide shafts.

This is to hold the carrier so that it does not rotate.

[Problems to be solved] In the conventional printer device described above, the carrier is slidably installed on two guide shafts, which takes up a large amount of space, making it impossible to downsize the printer device, and also making it difficult to reduce costs. There is a drawback that there is no

[Means for solving the problems] The printer device of the present invention that solves the above-mentioned conventional problems has the following features:
A carrier on which a print head is mounted is slidably installed on one guide shaft, and a rotating body that contacts a platen is provided in a part of the carrier.

In this configuration, the print head is positioned by bringing the carrier into contact with the platen.

[Embodiment] The present invention will be described in detail below with reference to the drawings showing a preferred embodiment.

FIG. 1 is a schematic configuration diagram of a printer device according to an embodiment of the present invention, and FIG. 2 is an external perspective view of a carrier of the printer device. In the figure, l is a guide shaft, 2 is a carrier, 3 is a print head, 4 is a platen, and 5 is printing paper. The carrier 2 is slidably and rotatably installed on one guide shaft 1. The print head 3 is fixed so as to be positioned above and behind the carrier 2 as shown in the figure. Then, the carrier 2 is slid on the guide shaft 1 to feed the pad 3 to printing, and printing is performed on the printing paper 5 on the platen 4.

In this embodiment, as described above, the carrier 2 is rotatably held on the single wooden guide shaft 1, so the positioning of the pad 3 for printing cannot be performed as it is. Therefore, as shown in the figure, the lower part of the carrier 2 is extended to the lower side of the platen 4, and a rotatable roller 2a is attached to the surface of the extended portion 2-1 facing the platen 4. The print head 3 can be positioned by abutting against the print head 4. For this reason, the print head 3 is fixed at the rear of the upper part of the carrier 2 in order to apply a clockwise rotational force to the carrier 2. Further, the roller 2a is provided with a cover 2 which has a hole in the extension portion 2-1 of the carrier 2 through which the roller 2a partially protrudes, as shown in FIG.
It is attached by fixing b with screws 2C.

With the above configuration, the carrier 2 slides on the guide shaft l while keeping the roller 2a in contact with the platen 4. Moreover, since the roller 2a rotates while contacting the platen 4 at this time, it does not interfere with the sliding movement of the carrier 2.

According to this embodiment, the carrier 2 can be installed on one guide shaft 1k, making it possible to reduce the size and cost of the printer device.

[Effects of the Invention] As explained above, the present invention enables the carrier to be installed on one guide shaft by positioning the print head between the carrier and the platen, thereby reducing the space for the carrier to slide. It can be made smaller, which has the effect of making the printer more compact. Furthermore, the number of parts is reduced, which has the effect of reducing costs.

[Brief explanation of drawings]

FIG. 1 is a side view showing a schematic configuration of a printer device according to an embodiment of the present invention, and FIG. 2 is an external perspective view of a carrier of the printer device. l Ni guide shaft 2: Carrier 3: Printing head 4 Ni platen 5: Printing paper 2a: Roller 2b: Cover 2C: Screw

Claims (1)

[Claims] A carrier on which a print head is mounted is slidably installed on one guide shaft, a rotating body that contacts a platen is provided in a part of the carrier, and the position of the print head is determined by the contact of the carrier with the platen. A printer device characterized in that: