| 摘要 |
PURPOSE:To shorten the depth of an outer casing, by a method wherein a dove body is housed in the outer casing so that it is positioned obliquely to the direction of the depth of the outer casing. CONSTITUTION:A link arm 38, secured to a door 26, is pivotably fastened to an end of a dove body seat 36 by means of a pin 40. The other end of the dove body seat 36 is fitted in a guide recess 4 in a guide rail 46 to have play in it, when it comes to the time for announcement, doors 26 and 28 are opened by means of a drive lever 34 for the dove body, and the dove seat 36 moves along the guide recess. This causes the oblique movement of a dove body 10, supported by the dove body seat 36, in the first place and the straight protrusion of it from the outer casing 42 in the last place. |
