JPS62131840U

JPS62131840U -

Info

Publication number: JPS62131840U
Application number: JP1881086U
Authority: JP
Priority date: 1986-02-14
Filing date: 1986-02-14
Publication date: 1987-08-20
Also published as: JPH0420058Y2

Description

[Brief explanation of the drawing]

第１図は本考案にかかるプリンタの一実施例の
要部を示す分解斜視図、第２図は電磁コイルの断
面図、第３図ａ，ｂは第１図に示すプリンタに備
えられる第１の回転軸と駆動爪との係合関係を示
す説明図で、このうち、第３図ａは第１の回転軸
と駆動爪とが係合した状態を示す説明図、第３図
ｂは第１の回転軸と駆動爪との係合が解除された
状態を示す説明図、第４図ａ，ｂ，ｃは第１図の
プリンタに備えられる選択ラチエツトと係止爪と
ばね部材との係合関係を示す説明図であつて、こ
のうち、第４図ａは係止爪が駆動される以前の待
機状態を示す説明図、第４図ｂは係止爪が選択ラ
チエツトに係合した状態を示す説明図、第４図ｃ
は係止爪と選択ラチエツトが係合していない非係
合状態を示す説明図、第５図は本願出願人が先に
提案したプリンタの要部の分解斜視図、第６図は
第５図のプリンタの問題点を説明する電磁コイル
の正面図である。１１……第１の回転軸、１３……第１の活字輪
、１４……第２の活字輪、１５，１６……大字形
成面、２５……第１の選択ラチエツト、２６……
第２の選択ラチエツト、２９……第１の歯部、３
０……第２の歯部、４９……第１の係止爪、５０
……第２の係止爪、５３……保持軸、５６……電
磁コイル。 FIG. 1 is an exploded perspective view showing essential parts of an embodiment of the printer according to the present invention, FIG. 2 is a sectional view of an electromagnetic coil, and FIGS. FIG. 3A is an explanatory diagram showing the engagement relationship between the first rotation shaft and the drive pawl, of which FIG. FIGS. 4a, b, and c are explanatory diagrams showing a state in which the engagement between the rotating shaft of FIG. 1 and the drive pawl is released, and FIGS. FIG. 4A is an explanatory diagram showing the mating relationship, of which FIG. 4A is an explanatory diagram showing a standby state before the locking pawl is driven, and FIG. 4B is a diagram showing the state in which the locking pawl is engaged with the selection ratchet. Explanatory diagram showing, Figure 4c
is an explanatory diagram showing a disengaged state in which the locking claw and the selection ratchet are not engaged, FIG. 5 is an exploded perspective view of the main parts of the printer proposed earlier by the applicant, and FIG. 6 is FIG. FIG. 2 is a front view of an electromagnetic coil illustrating a problem with the printer. DESCRIPTION OF SYMBOLS 11... First rotating shaft, 13... First type wheel, 14... Second type wheel, 15, 16... Large character forming surface, 25... First selection ratchet, 26...
Second selection ratchet, 29...first tooth, 3
0...Second tooth portion, 49...First locking claw, 50
... second locking claw, 53 ... holding shaft, 56 ... electromagnetic coil.

Claims

[Scope of utility model registration request]

a first rotation axis arranged parallel to the platen;
A plurality of type wheels are connected to the first rotary shaft, a selection ratchet is provided to each of these type wheels and rotates integrally with each type wheel, and a selection ratchet is capable of locking the selection ratchet. A printer comprising a locking pawl, a second rotating shaft that rotates the locking pawl toward the selection ratchet, and an electromagnetic coil that appropriately transmits the driving force of the second rotating shaft to the locking pawl. A holding shaft disposed parallel to the first rotating shaft passes through the central through hole of the electromagnetic coil, and the locking claws are loosely fitted to both sides of the electromagnetic coil on the holding shaft, A printer characterized in that a rotating plate is provided on the second rotating shaft for transmitting the driving force of the second rotating shaft to the two locking claws in accordance with the excitation of the electromagnetic coil.