JPS60172563A - Print hammer positional determination system - Google Patents

Abstract

PURPOSE:To obtain a print hammer attachment position with high accuracy, by bringing a standard for attaching a print hammer positional determination instrument to the attachment surface of a type selecting motor to a frame. CONSTITUTION:The flange surface 14 of a type selecting motor 13 usually has a highly precise flatness degree. The frame 15 having the motor 13 attached thereto has holes 15a, 15b and a notch part 15c as the exposed regions of the flange surface 14 and the feet 12a, 12b, 12c of a print hammer positional determination instrument 12 can be contacted with the flange surface 14. The before and behind position of the print hammer 16 is determined at the end surface of the print hammer positional determination instrument 12 and the height position thereof at the end surface (f) thereof while the left-and-right position thereof at a groove width (g). The under-surface, that is, the end surface (h) of the print hammer positional determination instrument 12 determines the attachment position of the attachment mount 18 of the type body 17.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a print hammer positioning method for determining the print hammer position of a serial printer device.

<Prior Art and Problems> A conventional method for determining the position of this type of print hammer is shown in FIGS. 1 and 2. 1 in the figure is the frame,
A type selection motor 2 is mounted on the frame 1, and a mount 3 is mounted on the shaft of the motor 2. A type body 4 is attached to the mount 3, and a print hammer 6 is positioned at a position facing the type body 5 of the type body 4. Print hammer 6 is support bracket 7
etc. is maintained. What determines the horizontal, vertical, and shading of printing is the alignment precision between the type 4 and the tip 8 of the print hammer 6. In order to determine the position of the print hammer 6, a print hammer positioning device 9 is used. Is required. FIG. 2 shows a perspective view of the print hammer positioning device 9. The end surface a of the print hammer positioning device 9 determines the front-rear position of the tip 80 of the print hammer 6, the end surface determines the height direction, and the groove width C determines the horizontal position. The print hammer 6 is attached using screws 10 or the like. The end face d determines the position 14 of the mount 3.

Also, print hammer position 16 deciding device 9t leg 9a.

9b and 9c are applied to the surface of the frame l to maintain the viscosity in the height direction, and JL9d and 9e are compressed to the ribbon guide H to maintain front-to-back and left-right accuracy.

However, in this conventional method for determining the position 15, the reference point is the surface of 7 frames 1, so if there is variation in the thickness, warpage, or bending of the frame 1, the reference may be distorted. Therefore, there were problems that required thorough management. Further, although a card holder (not shown) is normally attached to the ribbon guide 11, there are many problems such as having to remove the card holder and then attach the print hammer positioning device 9, which is time-consuming. Ta.

<Object of the Invention> An object of the present invention is to eliminate the above-mentioned drawbacks and to reduce the thickness of the frame by setting the standard for the print hammer positioning device to 7 runs and 9 planes for attaching the type selection motor to the frame. The aim is to provide a print hammer positioning method that allows highly accurate print hammer positioning without having to control the accuracy of variations, slopes, and curves.

<Constitution of the Invention> The print hammer positioning method of the present invention has seven parts installed on the frame to which the flange surface on the output shaft side of the motor for character selection is attached.
An exposed portion of the run 9 surface is formed, and a print hammer position/if determining device is attached using the flange surface facing the exposed portion and the exposed portion as the height positioning reference and front/back/left/right positioning reference of the print hammer, respectively. Especially,
The above conventional problems have been solved.

<Example> Hereinafter, an example of the present invention will be described based on FIGS. 3 to 5.

In the figure, 12 is a print hammer positioning device, and the print hammer positioning device 2 is a leg 12a, 12b,
It has 12c. Flange surface 1 of motor 13 for type selection
4 usually has a high degree of flatness. Motor [3
is attached to the frame 15, and the frame 15 has a hole 15a as an exposed portion of the flange surface 14.

15b and notches 15c, the legs 12a, 12b, 12 of the print hammer positioning device I2
c is the grounding force t+J on the flange surface 14. and,
Hole 15a and foot 12b1 and hole 15b and foot 1.2
The mounting position of the print hammer positioning device 12 is determined by the fitting position of c.

Further, the end surface e of the print hammer positioning device 12 determines the front-back position of the print hammer 16, the end surface f determines the height position, and the groove width g (FIG. 3) determines the left-right position.

The lower surface or end surface of the print hammer positioning device I2 determines the mounting position of the mount 18 to which the type body 17 is mounted. 1. The card holder 20 is attached to the ribbon guide 19, but the print hammer positioning device ■
There is no interference with 2.

<Effects of the Invention> As explained above, the print hammer positioning method of the present invention forms an exposed portion of the flange surface on the frame that extends several flange surfaces on the output shaft side of the type selection motor. Since the print hammer positioning device is attached using the 7 run 9 faces facing the exposed area and the exposed area as the print hammer height positioning reference and front/back/left/right positioning reference, variations in frame thickness and warping can be avoided. ,
This has the effect of being able to determine the print hammer position with high precision without involving the music.

[Brief explanation of the drawing]

FIG. 1 is a conventional print hammer positioning system. FIG. 2 is a perspective view of a conventional print hammer positioning tool. FIG. 3 is a perspective view of a print hammer positioning tool according to an embodiment of the present invention. Print hammer position (4) Perspective view of the frame to which the print hammer positioning device is attached, and Figure 5 shows the print hammer positioning device (4) attached.
- It is a sectional view of the J digit state. 12... Print printer positioning device 13... Motor 14... 7 rank surface 15... Frame 15a, 15b... Hole 15 as an exposed part c...
・Notch 9 as an exposed part 16...) Print hammer 17... Typeface 18... Mount applicant NEC Corporation

Claims (1)

[Claims] fil An exposed portion of the flange surface is formed on the frame to which the flange on the output shaft side of the motor for type selection is attached, and the flange surface facing the exposed portion and the exposed portion are each set at the height of the print hammer. A print hammer positioning method characterized in that several print hammer positioning devices are used as positioning standards and front/back/left/right positioning standards. (2) In the print hammer positioning method, the bottom surface of the print hammer positioning device is used as the positioning reference for the mounting of the mount that attaches the type.