JP2581453Y2 - Printer - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small type ring printer mounted on an electronic desk-top computer or the like, and more particularly, to a type ring holding type ring made of an elastic material such as rubber used for the printer. It is about the structure of the body.

[0002]

2. Description of the Related Art For example, there is an electronic desk-top type computer equipped with a small type serial printer as shown in FIG. As shown in the figure, this type-ring type serial printer has a type ring 10, 20, 30, a hammer (pressing member) 40, and a carriage 42 having an ink roll 41 impregnated with ink. The printing is carried out while carrying sequentially from the beginning. As shown in FIG. 4, each of the character rings 10, 20, and 30 has a plurality of rectangular characters 11 on its outer surface, and has a hammer hitting portion 12 to which a hammer 40 hits on its inner surface. The constricted portion 1 with which the rotation preventing portion 43a of the type ring holder 43 engages inside the connecting portion 13 between the adjacent type characters 11, 11 is provided.
4 are formed. On the other hand, the character ring holder 43 is formed by positioning parts 43b that contact four corners of each character part 11 with a limited area on a certain outer diameter, and side parts 43c connecting them. The ink roll 41 is pressed against the print wheel by an ink roll pressing member (not shown), and ink is applied to the print wheel.

[0003]

In the structure of the type ring holder, when the ink supplied from the ink roll is applied to the type surface of the type ring, the type ring holder 43 is formed by a capillary phenomenon. Side part 43c, type ring 10,
It is blown into the gap of 30 and accumulates. When selecting a desired character, the character wheel rotates with the character ring holder and stops at the desired character. At this time, the ink accumulated in the gap is blown off by centrifugal force, and the blown ink adheres to printing paper or the like and becomes dirty.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a type ring holder which eliminates ink accumulated in a gap between the type ring and the type ring holder and prevents stains on printing paper or the like due to ink flying.

[0005]

According to the present invention, in order to solve the above-mentioned problem, the ink roller is pressed in a type to activate the ink roller.
Ink is supplied to the characters, and the characters are pressed against a recording medium for printing.
In the print digit direction on a serial printer that performs
Carriage that can be installed, and a plurality of
C that protrudes inward at the position corresponding to the type
A ring-shaped type ring with a collision part and a type ring
Equipped with a substantially cylindrical support part rotatably mounted on the carriage
At both ends of the support part and at least one of the side end faces of the type ring.
A print ring holder having side faces facing the same, and a carriage mounted on the carriage.
And press-fit with the type of the type ring to apply ink to the type.
The ink roller has a cloth, and the side part is hit by a hammer
With a recessed part from the outer periphery at the position facing the part
It is characterized by becoming.

[0006]

As described above, the side surface of the character ring holder is capped.
The opposing surface is small at the position facing the
By providing a concave portion from the outer peripheral side so that
Ink is transferred to the side part facing the hammer hit part
Capillary phenomenon of ink hardly occurs away from type
In addition, the amount of accumulated ink is reduced.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing a type ring holder according to a first embodiment of the present invention, and FIG. 2 is a right side view when a type ring is assembled to the type ring holder. In FIG. 1 and FIG.
0, 20, and 30 have a plurality of rectangular characters 11 on the outer surface thereof.
And has a hammer hitting portion 12 on the inner surface of which the hammer 40 hits. In addition, adjacent type 11,
A constricted portion 14 with which the detent portion 50a of the type ring holder 50 is engaged is formed inside the connecting portion 13 between the portions 11. On the other hand, the print ring holder 50 includes the print rings 10, 20, 3 and
The supporting part to which 0 is attached is a substantially cylindrical shape with one closed
It is in a state. The side parts at both ends of the support
At the position facing the hammer hit part of each type,
A concave portion 50c is formed from the side.

As shown in the figure, a hammer of each type of the type ring.
Side surface of the support portion of the character ring holder 50 facing the colliding portion
Area is smaller shape. Han of the individual print of the print ring
Side surface of the support portion of the character ring holder facing the impacted portion
The longer the distance between the character and the print surface to which the ink is applied, the more difficult it is for the ink capillary phenomenon to occur between the print ring and the print ring holder. However, the side part 50
The shape of c is preferably such that the hammer hitting portion 12 does not protrude and come off when the character ring is pushed out by the hammer. This is because, when the hammer has returned to a predetermined position after the printing, extruded of character ring
This is because the hammer hit portion is caught by the concave portion 50c and hinders return .

As described above, since the positioning portion 50b of the character ring holder is moved away from the character surface of the character ring, a capillary phenomenon hardly acts between the character ring and the character ring holder. Subsides on the typeface.

[0010]

As described above, according to the present invention, the side surface of the type ring holder is located at a position facing the hammer collision portion.
The recessed portion from the outer periphery so that the facing surface is smaller.
Providing the following effects is provided.

That is, the ink capillarity that occurs in the type ring and the type ring holder is eliminated, and the accumulation of ink is eliminated.
Prevents ink splashing. Further, since there is no wasteful ink consumption due to ink flying or the like, the ink life is extended.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a type ring holder according to a first embodiment of the present invention.

FIG. 2 is a right side view when the type ring is incorporated in the type ring holder according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing the overall configuration of a type wheel printer.

FIG. 4 is an exploded perspective view showing a type wheel and a type wheel holder mounted on a carriage used in the type wheel printer.

[Description of Signs] 10, 20, 30: Type ring 11: Type 12: Hammer colliding portion 13: Connecting portion 14: Constricted portion 40: Hammer 41: Ink Roll 42 ... Carriage 43 ... Type ring holder 50 ... Type ring holder 50a ... Detent part 50b ... Positioning part 50c ... Side part 50d ... Side part

Claims (1)

(57) [Scope of request for utility model registration] 1. A serial printer that presses an ink roller to print characters to supply ink to the print characters, and presses the print characters to a recording medium to perform printing, a carriage installed movably in a print digit direction; A ring-shaped character ring having a plurality of characters protruding to the outer periphery and a hammer hitting portion protruding inward at positions corresponding to the characters on the inner periphery; and a substantially cylindrical support portion for supporting the character ring. A print ring holder that is rotatably mounted on the carriage and has a side surface at both ends of the support portion facing at least one of the side end surfaces of the print ring; and a print ring mounted on the carriage and the print type of the print ring. And an ink roller that presses and engages with the ink to apply ink to the type, wherein the side surface portion is provided with a concave portion from the outer peripheral side at a position facing the hammer hit portion. Printer that.