JPS5953664U

JPS5953664U - Brush holding device for small motors

Info

Publication number: JPS5953664U
Application number: JP14896182U
Authority: JP
Inventors: 朝倉　一雄; 熊坂　六哉; 満雄鈴木
Original assignee: 北芝電機株式会社
Priority date: 1982-09-30
Filing date: 1982-09-30
Publication date: 1984-04-09

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]

第１図は従来のブラシ保持装置を組込んだ小型モータを
示す一部切欠正面図、第２図は第１図の■−■線断面図
、第３図は従来のブラシ保持装置を組込んだ小型モータ
の縦断側面図、第４図は第３図のブラシ保持装置を示す
斜視図、第５図は第４図のブラシ保持装置をモータケー
スに嵌合する状態を示す平面図、第６図は本考案の一実
施例によるブラシ保持装置を組込んだ小型モータを示す
一部切欠正面図、第７図はその組立て状態を示す斜視図
、第８図乃至第１０図は本考案の夫々異なる他の実施例
を示すもので、第８図はブラシ保持装置の縦断正面図、
第９図は゛フ゛ラシ保持装置の側面図、第１０図は保持
部の斜視図である。１・・・モータケース、２・・・整流子、３・・・シャ
フト、４・・・ケース蓋、５・・・絶縁板、６・・・ブ
ラシホルダ、８・・・ブラシ、９・・・バネ板、１０・
・・保持部、１２・・・嵌合溝、１３・・・切欠部、１
４・・・保持部、１５・・・スリット、１６・・・湾曲
部、１７・・・引張りコイルスプリング、１８・・・円
筒状鍔部、１７′・・・引張りコイルスプリング取付具
、１９・・・押え部材、２１・・・電気絶縁部材。１３１Ｘ１８１４１５１ラ　１４１２１　−−　　　・　　Ｊ　　Ｉ　　１・・′＝（イ）ユ−Fig. 1 is a partially cutaway front view showing a small motor incorporating a conventional brush holding device, Fig. 2 is a sectional view taken along the line ■-■ of Fig. 1, and Fig. 3 is a partially cutaway front view showing a small motor incorporating a conventional brush holding device. FIG. 4 is a perspective view showing the brush holding device shown in FIG. 3, FIG. 5 is a plan view showing the brush holding device shown in FIG. 4 fitted into the motor case, and FIG. The figure is a partially cutaway front view showing a small motor incorporating a brush holding device according to an embodiment of the present invention, FIG. 7 is a perspective view showing its assembled state, and FIGS. Another different embodiment is shown, and FIG. 8 is a longitudinal sectional front view of the brush holding device;
FIG. 9 is a side view of the holder, and FIG. 10 is a perspective view of the holder. DESCRIPTION OF SYMBOLS 1...Motor case, 2...Commutator, 3...Shaft, 4...Case lid, 5...Insulating plate, 6...Brush holder, 8...Brush, 9...・Spring plate, 10・
...Holding part, 12... Fitting groove, 13... Notch part, 1
4... Holding part, 15... Slit, 16... Curved part, 17... Tension coil spring, 18... Cylindrical collar part, 17'... Tension coil spring fitting, 19. ... Pressing member, 21... Electrical insulation member. 13 1

Claims

[Scope of utility model registration request]

A pair of brushes facing each other and in contact with the commutator of the motor, a pair of spring plates fixing each brush, and a tension coil spring connected between both spring plates, all or part of which are vibration-proof. a holding part made of an electrically insulating material having a property and having a fitting groove on the periphery; a slit formed in the holding part to fit and support the support part of the spring plate; and a slit formed in the periphery of the opening of the motor case. and a notch portion into which the holding portion fits.