JPS618880U

JPS618880U - Radar indicator scale disc rotation mechanism

Info

Publication number: JPS618880U
Application number: JP9262184U
Authority: JP
Inventors: 史郎川上
Original assignee: アンリツ株式会社
Priority date: 1984-06-22
Filing date: 1984-06-22
Publication date: 1986-01-20
Also published as: JPH0228463Y2

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はこの考案によるレーダ指示機の目盛円板回転機
構の一実施例を示す斜視図、第２図は第１図に示す目盛
円板回転機構の要部を示す断面図、第３図は第１図に示
す目盛円板回転機構の平面図、第４図および第５図は各
々第１図に示す目盛円板回転機構を説明するための平面
図、第６図−ａ，ｂは各々従来の目盛円板回転機構の
平面図および断面図、第７図および第８図は各々第６図
ａ，ｂに示す目盛円板回転機構を説明するための平面図
である。２・・・目盛円板（方位目盛盤）、７・・・ダミー円板
、１７・・・駆動ギヤ（駆動車）、１８・・・アイドル
ギャ（アイドル車）、２２・・・回動板、２６・・・押
圧手段（引張りコイルばね）、２７・・・ガイド円板（
円弧板）。Fig. 1 is a perspective view showing an embodiment of the scale disc rotation mechanism of a radar indicator according to this invention, Fig. 2 is a sectional view showing the main parts of the scale disc rotation mechanism shown in Fig. 1, and Fig. 3. is a plan view of the scale disk rotation mechanism shown in FIG. 1, FIGS. 4 and 5 are plan views for explaining the scale disk rotation mechanism shown in FIG. 1, and FIGS. 6-a and b are plan views. FIGS. 7 and 8 are a plan view and a cross-sectional view of a conventional scale disk rotation mechanism, respectively, and are plan views for explaining the scale disk rotation mechanism shown in FIGS. 6a and 6b, respectively. 2... Scale disk (azimuth scale board), 7... Dummy disk, 17... Drive gear (drive car), 18... Idle gear (idle car), 22... Rotating plate , 26... Pressing means (tension coil spring), 27... Guide disk (
arc plate).

Claims

[Scope of utility model registration request]

Scale disk 35, 2 arranged on the display surface of the radar indicator
In a scale disc rotation mechanism for a radar indicator, which includes a drive unit 30 that rotationally drives the scale disc: the scale disc has the same diameter S as the scale disc and is made of the same material; A dummy disk 7 arranged so that the center of rotation is the same as that of the plate; A drive gear 17 provided near the outer periphery of the scale disk and the dummy disk; Rotatable on the drive shaft of the drive gear. a rotating plate 22 attached to the rotating plate; an idle gear 18 rotatably supported on the rotating plate and having an outer circumferential portion engaged with an outer circumferential portion of the drive gear and an outer circumferential portion of the scale disk; a guide disk 27 that is attached to the drive shaft of the idle gear and whose outer circumferential portion is joined to the outer circumferential portion of the dummy disk; and a pressing means 26 that presses the rotary plate toward the scale disk; Even if the diameter of the scale disk changes due to temperature changes, the idle gear can be maintained at all times by rotating the rotary plate via the guide disk connected to the outer circumference of the dummy disk. A scale disc rotation mechanism for a radar indicator, characterized in that the drive gear and the scale disc are engaged with each other with an appropriate contact force.