JPS5866606U

JPS5866606U - variable resistor

Info

Publication number: JPS5866606U
Application number: JP16147081U
Authority: JP
Inventors: 義信松本
Original assignee: 株式会社村田製作所
Priority date: 1981-10-27
Filing date: 1981-10-27
Publication date: 1983-05-06
Also published as: JPS6220965Y2

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]

一第１図ないし第３図は第１の従来例におけるロータと
ウオームとの関連構成聴よび動作を示す。第４図は第２の従来例におけるロータとウオームとの関
連構成を示す。第５図は第３の従来例におけるロータと
ウオームとの関連構成を示す。第６図はこの考案の一実
施例の外観を示す斜視図であ　　　、る。第７図は第６
図の線■−■に沿う断面図である。第８図は第７図のロ
ータの正面図である。第９図は同じロータを第８図の右
方から示した側面図である。第１０図は同じロータの背
面図である。第１１図はクラッチ機構を実現する板ばねの斜視図であ
る。第１２図ないし第１５図はこの考案の一実施例にお
けるロータとウオームとの関連構成および動作を示す。図において、２５はケース、３０はウオーム、３１はロ
ータ、３４はギア、３４ａは最端のギア、３５はワイパ
、３８は欠除部分、３９は板ばね、４２は支点、４３は
クラッチ歯、４４は溝、４５は突起、４６はステータ、
４７は抵抗体である。1 to 3 show the relative structure and operation of a rotor and a worm in a first conventional example. FIG. 4 shows a related structure between a rotor and a worm in a second conventional example. FIG. 5 shows a related structure between a rotor and a worm in a third conventional example. FIG. 6 is a perspective view showing the appearance of one embodiment of this invention. Figure 7 is the 6th
It is a sectional view taken along the line ■-■ in the figure. FIG. 8 is a front view of the rotor of FIG. 7. FIG. 9 is a side view of the same rotor shown from the right side of FIG. 8. FIG. 10 is a rear view of the same rotor. FIG. 11 is a perspective view of a leaf spring realizing the clutch mechanism. 12 to 15 show the related structure and operation of the rotor and worm in one embodiment of this invention. In the figure, 25 is a case, 30 is a worm, 31 is a rotor, 34 is a gear, 34a is the outermost gear, 35 is a wiper, 38 is a missing part, 39 is a leaf spring, 42 is a fulcrum, 43 is a clutch tooth, 44 is a groove, 45 is a protrusion, 46 is a stator,
47 is a resistor.

Claims

[Scope of utility model registration request]

(1) a case; a stator that is fixedly provided to the case and has a C-shaped resistor formed on one side; and a stator that is rotatably provided to the case and comes into contact with the resistor of the stator; a rotor that holds a wiper and has a gear on its circumferential surface; a worm that is held in the case and is rotatably provided and that meshes with the gear of the rotor; the gear of the rotor is removed over a predetermined angular range, a leaf spring is disposed extending in the circumferential direction of the rotor in the removed portion, and the leaf spring is arranged in the removed portion. Clutch teeth having a fulcrum at the center in the circumferential direction, extending toward both ends of the cutout portion, and engaging with the worm are formed at each tip thereof, so that the clutch teeth respond to the deformation of the leaf spring. and the clutch teeth are positioned at an end of the cutout portion at least one circumferential pitch with respect to an endmost gear of the rotor. , variable resistor.

(2) The variable resistor according to claim 1, wherein the clutch teeth are formed by bending a tip end portion of the leaf spring.

(3) The tip portion of the clutch tooth is positioned on the same circumference as the tip of the gear of the rotor when the leaf spring is in an unloaded state.
Variable resistor as described in section.