JPS6040284A - Printer - Google Patents

Abstract

PURPOSE:To absorb movements in lateral directions of a carriage on a mechanism part and prevent vibrations and noises, by fixing the mechanism part provided with elastic bodies compressedly fixed to a casing. CONSTITUTION:Four elastic bodies 13 formed of a rubber or the like are fixed to outside surfaces of both side chassis 11 for the mechanism part of the printer. The mechanism part is guided from above so that the elastic bodies 13 are fitted into fitting parts 15 provided in a casing 14, and is elastically fixed by screwing pressure plates 16 to the fitting parts 15. Since the mechanism part is fixed in the condition of being perfectly levitated by the elastic bodies 13 with respect to the casing 14, it can sufficiently withstand vibrations.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printer that reciprocates a carriage carrying a print head along a platen to print on paper supported between the platen and the print head.

It is an object of the present invention to provide a printer with a mechanical part mounting structure that does not transmit vibrations from the mechanical part to the housing and also does not transmit external force to the mechanical part. It is about providing.

Conventionally, in this type of printer, the housing is supported by an elastic material such as rubber, but this has no effect on the reciprocating movement of the printing gutter, that is, the vibration in the lateral direction, so it is difficult to protect the mechanism from external forces. There were also drawbacks such as the lateral vibration of the mechanism being transmitted to the casing and generating noise.

The present invention solves the above-mentioned drawbacks, and will be described in detail below by showing an embodiment thereof in the drawings.

FIG. 1 is an assembled perspective view of the mechanism section and the casing of the present invention, and FIG. 2 is a sectional view of the main parts of this embodiment.

In FIG. 1, a printing sword 2 is mounted on a carriage 1, guided by a carriage shaft 3 and a carriage rail 4, and reciprocated by a platen 6 711. The print head 2 then prints on the paper 6 supported between the platen 6 and the print head 1. The paper feeder 8 is a feeding mechanism for the paper 6, and has a structure in which it slides left and right on a tractor guide shaft 9 at a distance tY'i to set the paper according to the desired width. In addition, the tractor shaft 1o includes a paper feed motor and both side chassis 11.
Rotated by a transmission drive unit (not shown) provided in
It functions to feed paper 6. The chassis 11 on both sides are connected by the carriage shaft 3, the carriage rail 4, the tractor guide shaft 9, the tractor shaft 10, etc., and are further fixed with a power supply section (not shown) to form the mechanism section of the printer. ing.

The mechanism section has a total of four parts on each outer side of the chassis 11 on both sides
An elastic body 13 made of rubber or the like is fixedly provided. In the mechanical part, this elastic body 13 is attached to the mounting part 1 provided on the housing 14.
When the press plate 16, which is a separate body, is screwed to the mounting part 15, the elastic body 1 is guided from above to fit into the elastic body 1.
3, that is, the mechanism section is elastically fixed. This ll'
The mounting portion 16 of the i-casing 14 is constructed to be slightly larger than the external shape of the elastic body 13, such as rubber, as shown in FIG. 3, so that mounting is easy. In addition, the elastic body 1 is
6 is pressed in the direction of arrow A and fixed, so it is held securely.

According to this embodiment, the mechanical part is fixed to the housing 14 with screws in a completely floating state with an elastic body 13 such as rubber. It can also withstand vibrations. Also, the housing 14
Even if an unexpected external force is applied from the outside, the elastic body 13 is always in a compressed state, so it has a large damping effect, and since it is absorbed by the elastic body 13, the mechanical part is completely protected, and noise is reduced. This will greatly contribute to the

As is clear from the above embodiments, according to the present invention, since the mechanism section having the elastic body compressed and fixed to the housing is fixed, the lateral movement of the carriage on the mechanism section can be absorbed. It is possible to provide an excellent printer that is sufficiently effective in preventing vibration and noise and protecting the mechanism from external forces.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of the main parts of an embodiment of the printer of the present invention, and FIGS. 2(eL) and 2(b) are exploded assembly diagrams for explaining the first part. DESCRIPTION OF SYMBOLS 1... Gear ridge, 2... Print head, 6... Platen, 11... Chassis on both sides, 13... Elastic body, 14... ...Housing, 16...Mounting section, 16...Press plate. Name of agent: Patent attorney Toshio Nakao and one other person fM
l Figure 2

Claims (1)

[Claims] The printer is equipped with a printing mechanism section that reciprocates a carriage carrying a print head along a platen to print on a sheet of paper supported between the platen and the print head, and has a plate-like section on both sides of the plate-shaped section that forms the skeleton of the printing mechanism section. When installing a housing which is provided with an elastic body and is formed to be slightly thicker than the outer shape of the elastic body, the elastic body is clamped and fixed to the 41 part of the housing by a member that compresses and fixes the elastic body. A printer characterized by: