JPH0342648U

JPH0342648U -

Info

Publication number: JPH0342648U
Application number: JP10208489U
Authority: JP
Priority date: 1989-08-31
Filing date: 1989-08-31
Publication date: 1991-04-23

Description

[Brief explanation of drawings]

第１〜７図は本考案の一実施例を示すもので、
第１図はドツト印字ヘツドの断面図、第２図は印
字ユニツトの側面図、第３図は第２図の要部拡大
図、第４図は印字ユニツトの平面図、第５図はリ
ード線ホルダの斜視図、第６図は第３図の−
線断面図、第７図はフレキシブル配線板の一部表
面図である。第８〜１０図はそれぞれ実施例の変
更例を示すもので、第８図は印字ユニツトの要部
側面図、第９図はフレキシブル配線板の一部表面
図、第１０図は印字ユニツトの要部側面図である
。第１１，１２図は従来例を示すもので、第１１
図はドツト印字ヘツドの断面図、第１２図は印字
ユニツトの側面図である。１……圧電素子、２……メインフレーム部（立上
り部）、１１……印字ワイヤ、１４Ｐ，１４Ｎ…
…リード線、７０……フレキシブル配線板、８０
……フレーム、１００……リード線ホルダ、ＰＵ
……印字ユニツト。 Figures 1 to 7 show an embodiment of the present invention.
Figure 1 is a sectional view of the dot printing head, Figure 2 is a side view of the printing unit, Figure 3 is an enlarged view of the main parts of Figure 2, Figure 4 is a plan view of the printing unit, and Figure 5 is the lead wire. A perspective view of the holder, Fig. 6 is the − of Fig. 3.
The line sectional view and FIG. 7 are partial surface views of the flexible wiring board. Figures 8 to 10 show modifications of the embodiment, respectively. Figure 8 is a side view of the main parts of the printing unit, Figure 9 is a partial surface view of the flexible wiring board, and Figure 10 is the main part of the printing unit. FIG. Figures 11 and 12 show conventional examples.
The figure is a sectional view of the dot printing head, and FIG. 12 is a side view of the printing unit. 1... Piezoelectric element, 2... Main frame part (rising part), 11... Printing wire, 14P, 14N...
... Lead wire, 70 ... Flexible wiring board, 80
... Frame, 100 ... Lead wire holder, PU
...Printing unit.

Claims

[Claims for Utility Model Registration] A columnar piezoelectric element that expands and contracts in its longitudinal direction when voltage is applied, two power supply lead wires connected to the piezoelectric element, and the piezoelectric element at one end in its expansion and contraction direction. A printing unit comprising: a frame supporting the piezoelectric element and having a rising portion extending parallel to the expansion/contraction direction of the piezoelectric element; and a drive mechanism connected to the other end of the piezoelectric element in the expansion/contraction direction and driving a printing wire; A large number of side surfaces substantially parallel to a plane passing through the piezoelectric element and the rising portion of the frame and extending in the expansion/contraction direction are arranged so as to substantially face the same side surface of an adjacent printing unit, and are adjacent to the side surface of the frame. The dot printing head further includes a wiring board to which the lead wires are connected along the outer surface opposite to the piezoelectric element, and the two lead wires are connected to the piezoelectric element in the printing unit. A dot printing head including a lead wire holder fixed to the frame, extending outwardly to the same side of the side surface substantially parallel to the side surface, and supporting the two lead wires from the piezoelectric element to the wiring board.