JPS60172308U

JPS60172308U - gear switch

Info

Publication number: JPS60172308U
Application number: JP5965784U
Authority: JP
Inventors: 平田　源治; 公敬安保; 大久保　孝紘
Original assignee: 日立工機株式会社
Priority date: 1984-04-23
Filing date: 1984-04-23
Publication date: 1985-11-15

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図は変速スイッチの基本構造図、第２図は従来の基
板組立体の平面図、第３図は本考案の基板組立体、第４
図は従来の可変抵抗の導体部の拡大図、第５図は本考案
の可変抵抗の導体部の拡大図を示す。１はカバー、２はトリガ、３はブラシスタンド、４はブ
ラシ、５は基板組立体、６は基板、７ａ〜７ｄは導体、
８ａ、８ｂは可変抵抗、１０はダイアック、１１はコン
デンサ、１２はサイ！ノス　−タ、１３はブラシ摺動部
、１４は導体の逃げ部を示す。　□　　　　　　′Fig. 1 is a basic structural diagram of a speed change switch, Fig. 2 is a plan view of a conventional board assembly, Fig. 3 is a board assembly of the present invention, and Fig. 4 is a plan view of a conventional board assembly.
The figure shows an enlarged view of the conductor part of a conventional variable resistor, and FIG. 5 shows an enlarged view of the conductor part of the variable resistor of the present invention. 1 is a cover, 2 is a trigger, 3 is a brush stand, 4 is a brush, 5 is a board assembly, 6 is a board, 7a to 7d are conductors,
8a and 8b are variable resistors, 10 is a diac, 11 is a capacitor, and 12 is a rhinoceros! 13 is a brush sliding part, and 14 is a conductor escape part. □ ′

Claims

[Scope of utility model registration request]

In a speed change switch equipped with a variable resistor whose resistance value changes in conjunction with the pull of a trigger, and an electronic circuit that changes an output voltage according to the change in the variable resistor, a relief part is provided in the conductor part of the variable resistor. A speed change switch featuring seven.