JPS59106064U

JPS59106064U - tachometer

Info

Publication number: JPS59106064U
Application number: JP19983982U
Authority: JP
Inventors: 榎　幹治; 和夫大島
Original assignee: いすゞ自動車株式会社
Priority date: 1982-12-29
Filing date: 1982-12-29
Publication date: 1984-07-17

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 the drawing]

第１図は従来の回転計の構造を説明するための斜視図、
第２図は従来の回転計において発生する針振れ現象を説
明するためのグラフ、第３図はこの考案の一実施例を示
す斜視図、第４図はその要部の形状を説明するための正
面図、第５図はこの考案の動作を説明するためのグラフ
、第６図はこの考案の他の実施例を示す断面図、第７図
は第６図の実施例に使用した磁石の形状を説明するため
の斜視図、第８図はこの考案の他の実施例を説明するた
めの斜視図、第９図はこの考案の更に他の実施例を示す
平面図である。１：指針、２：目盛板、３：誘導板、４ニスプリング、
５：磁石、６：フレキシブルシャフト、７：ダンノマ。Figure 1 is a perspective view for explaining the structure of a conventional tachometer.
Fig. 2 is a graph for explaining the needle runout phenomenon that occurs in a conventional tachometer, Fig. 3 is a perspective view showing an embodiment of this invention, and Fig. 4 is a graph for explaining the shape of its main parts. A front view, FIG. 5 is a graph for explaining the operation of this device, FIG. 6 is a sectional view showing another embodiment of this device, and FIG. 7 is a shape of the magnet used in the embodiment of FIG. 6. FIG. 8 is a perspective view for explaining another embodiment of this invention, and FIG. 9 is a plan view showing still another embodiment of this invention. 1: pointer, 2: scale plate, 3: guide plate, 4 spring,
5: Magnet, 6: Flexible shaft, 7: Dannoma.

Claims

[Scope of utility model registration request]

A tachometer having a structure in which a magnet rotates and a cup-shaped guide plate provided around the periphery of the magnet is rotated by an amount proportional to the rotation speed of the magnet, and the guide plate is provided with a damper for absorbing vibration.