JPS5858554U

JPS5858554U - Type positioning mechanism of printing device

Info

Publication number: JPS5858554U
Application number: JP15366081U
Authority: JP
Inventors: 幾太郎井上; 菅原　福雄; 簗田　公咲; 豊薄井
Original assignee: アルプス電気株式会社
Priority date: 1981-10-16
Filing date: 1981-10-16
Publication date: 1983-04-20
Also published as: JPS6329565Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来のラチェツト歯部と係止レバーとの保合状
態を示す説明図、第２図〜第４図は本考案の１実施例に
係り、第２図は活字位置決め機構の斜視図、第３図は係
合歯部と係止レバーとの係合状態の説明図、第４図はタ
イミングカムの一部拡大正面図である。４・・・活字ドラム、１０・・・位置決め回転体、１０
ａ・・・係合歯部、１１・・・係止レバー、ｌｌａ・・
・係止部、１２・・・回動軸、１３・・・タイミングカ
ム、１３ａ・・・円弧部、１３ｂ・・・絶壁部、１４・
・・追従レバー、１４ａ・・・歯部、１４Ｂ・・・凸部
、１５・・・歯部、Ｍ・・・モータ。　　　、第１図− 第３図Fig. 1 is an explanatory diagram showing the engagement state of the conventional ratchet teeth and the locking lever, Figs. 2 to 4 relate to one embodiment of the present invention, and Fig. 2 is a perspective view of the type positioning mechanism. 3 is an explanatory view of the engagement state between the engagement teeth and the locking lever, and FIG. 4 is a partially enlarged front view of the timing cam. 4... Type drum, 10... Positioning rotary body, 10
a... Engaging tooth portion, 11... Locking lever, lla...
- Locking part, 12... Rotating shaft, 13... Timing cam, 13a... Arc part, 13b... Precipice part, 14.
...Following lever, 14a...Tooth portion, 14B...Convex portion, 15...Tooth portion, M...Motor. , Figure 1 - Figure 3

Claims

[Scope of utility model registration request]

(1) While selectively rotating a motor via a first clutch, a wheel or drum-shaped type carrier having a plurality of type characters disposed on its outer periphery is made to be in a state in which the rotation cannot be transmitted to the first clutch. The rotational force of the motor is applied to the printing hammer via the second clutch, which becomes capable of transmitting rotation after the first clutch becomes incapable of transmitting rotation. In a configuration in which a printing hammer hits and prints characters through a recording paper, an engaging tooth portion having an inclined surface is formed on a positioning rotating body that rotates together with the character carrier, and the retaining tooth portion A locking lever having a locking portion that engages with is rotatably attached near the engaging tooth portion, and the engagement between the engaging tooth portion and the locking portion is completed before operation of the printing hammer. A type positioning mechanism for a printing device, characterized in that a timing cam is rotated by the motor via a second clutch, and the locking portion engages with the engagement tooth portion.

(2) The shape of the engagement tooth portion is a substantially equilateral triangle with a symmetrical inclined surface, and the shape of the locking portion of the engagement lever is a wedge shape that engages with the engagement tooth portion. A character positioning mechanism for a printing device as set forth in claim (1) of the utility model registration.