JPH0479650U

JPH0479650U -

Info

Publication number: JPH0479650U
Application number: JP12330990U
Authority: JP
Priority date: 1990-11-22
Filing date: 1990-11-22
Publication date: 1992-07-10
Anticipated expiration: 2005-05-17
Also published as: JPH0721331Y2

Description

[Brief explanation of the drawing]

第１図および第２図は本考案の小型プリンタの
ハンマ駆動機構の一実施例を示し、第１図は縦断
面図、第２図は蓋体の固定鉄心の内方端側から見
た斜視図ａ、およびその逆側から見た斜視図ｂ、
第３図から第５図は従来の小型プリンタのハンマ
駆動機構を示し、第３図は縦断面図、第４図は第
３図の一部を断面とした平面図、第５図は蓋体と
固定鉄心との分割斜視図、第６図および第７図は
他の従来の小型プリンタのハンマ駆動機構を示し
、第６図は縦断面図、第７図は蓋体を示す斜視図
、第８図から第１０図はさらに他の従来の小型プ
リンタのハンマ駆動機構を示し、第８図は縦断面
図、第９図は蓋体を示す正面図、第１０図は分割
体の斜視図。１……活字、２……活字シート、３……ヨーク
、６……コイルボビン、１０……固定鉄心、１１
……ハンマ、１３……可動鉄心。 Figures 1 and 2 show an embodiment of the hammer drive mechanism of the small printer of the present invention, with Figure 1 being a longitudinal sectional view and Figure 2 being a perspective view from the inner end of the fixed core of the lid. Figure a, and a perspective view b seen from the opposite side,
Figures 3 to 5 show the hammer drive mechanism of a conventional small printer, with Figure 3 being a longitudinal sectional view, Figure 4 being a plan view with a portion of Figure 3 in cross section, and Figure 5 being a cover body. 6 and 7 show a hammer drive mechanism of another conventional small printer, FIG. 6 is a vertical sectional view, and FIG. 7 is a perspective view showing the lid body. 8 to 10 show a hammer drive mechanism of another conventional small-sized printer, in which FIG. 8 is a longitudinal sectional view, FIG. 9 is a front view showing a lid body, and FIG. 10 is a perspective view of a divided body. 1... Type, 2... Type sheet, 3... Yoke, 6... Coil bobbin, 10... Fixed iron core, 11
...Hammer, 13...Movable iron core.

Claims

[Scope of utility model registration request]

A yoke in which coiled coil bobbins corresponding to the number of printed digits are housed in parallel is arranged inside a cylindrical type sheet around which a large number of type characters are arranged, and a fixed iron core and the above-mentioned A movable core is provided, which is attracted to the fixed core by energizing the coil of the coiled coil bobbin, and a hammer whose tip presses the type on the type sheet by the drive of the movable core is moved in the direction of the center axis of each coil bobbin. In the hammer drive mechanism of a small printer, the inner end of each of the fixed iron cores reaches the center point in the direction of the central axis of the coil bobbin, and the yoke is not divided. A hammer drive mechanism for a small printer characterized by being folded and formed in one piece.