JPS5954852U

JPS5954852U - gear system

Info

Publication number: JPS5954852U
Application number: JP15112782U
Authority: JP
Inventors: 直文藤江; 正幸林
Original assignee: Aisin Seiki Co Ltd
Current assignee: Aisin Corp
Priority date: 1982-10-05
Filing date: 1982-10-05
Publication date: 1984-04-10

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図は本考案の一実施例の側面図、第２図はその■−
■線断面図、第３図は■−■線断面図である。第４図は
ギアハウジングのみを示す側面図、第５図は磁気検出ユ
ニットの拡大平面図である。１：ギアハウジング、２：ウオーム、３：ホイール、４
：磁気検出ユニット、５：段付丸穴（ウオーム収納空間
）、６．　７．　１０．　１１：軸受、８：リング状永
久磁石、９：段付丸穴（ホイール収納盛量）、１２：雌
ねじ穴、１３：貫通開口、１４：合成樹脂枠体、１５：
ホールＩＣ素子。Figure 1 is a side view of one embodiment of the present invention, and Figure 2 is its ■-
Fig. 3 is a cross-sectional view taken along the line ■-■. FIG. 4 is a side view showing only the gear housing, and FIG. 5 is an enlarged plan view of the magnetic detection unit. 1: Gear housing, 2: Worm, 3: Wheel, 4
: Magnetic detection unit, 5: Stepped round hole (worm storage space), 6. 7. 10. 11: Bearing, 8: Ring-shaped permanent magnet, 9: Stepped round hole (wheel storage capacity), 12: Female threaded hole, 13: Through opening, 14: Synthetic resin frame, 15:
Hall IC element.

Claims

[Scope of utility model registration request]

(1) A gear housing in which a worm storage space and a wheel storage space are formed such that their projections are orthogonal and continuous at the worm and wheel meshing part, and a through opening is formed in the side wall surrounding the worm storage space; A worm that is inserted into the wheel storage space and has fixed permanent magnets having north and south poles alternately formed in the circumferential direction; A wheel that is inserted into the wheel storage space and meshes with the worm; and a thrust force that enters the through opening. A gear device comprising: a magnetic sensing unit equipped with a magnetic response element in a space above the thrust, and mounted on a gear housing by inserting the thrust into a through opening.

(2) The gear device according to claim (1), wherein the wheel has a threaded hole on its axis that engages with the screw.

(3) The gear device according to claim (1), wherein the permanent magnet is a ring-shaped permanent magnet with N and S poles polarized alternately in the circumferential direction.

(4) The gear device according to claim 1, wherein the magnetic response element is a Hall IC that integrally integrates a Hall element and an electric circuit element for processing its magnetic detection signal.