JPS60173455U

JPS60173455U - wiper device

Info

Publication number: JPS60173455U
Application number: JP6247984U
Authority: JP
Inventors: 正樹柿原; 憲司麥田
Original assignee: マツダ株式会社
Priority date: 1984-04-26
Filing date: 1984-04-26
Publication date: 1985-11-16

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]

図面はこの考案の一実施例を示し、第１図は自動車の正
面図、第２図はワイパー装置の下面図、第３図はその断
面側面図、第４図は低速時の作用状態を示す下面図、第
５図は加熱制御回路のブロック図である。１・・・自動Ｌ　　２・・・フロントガラス、３・・・
ワイパー装置、４・・・ワイパーアーム、５・・・ワイ
パーブレード、１３・・・形状記憶合金、１４・・・ア
ームスプリング、１５・・・引張り部材、１６・・・ヒ
ータ、１７・・・Ｆ／Ｖ変換回路、１８・・・コンパレ
ータ、Ｔｒ・・・ト　　　　〜ランジスタ。The drawings show one embodiment of this invention, with Fig. 1 being a front view of the automobile, Fig. 2 being a bottom view of the wiper device, Fig. 3 being a cross-sectional side view thereof, and Fig. 4 showing its operating state at low speeds. The bottom view, FIG. 5, is a block diagram of the heating control circuit. 1...Automatic L 2...Windshield, 3...
Wiper device, 4... Wiper arm, 5... Wiper blade, 13... Shape memory alloy, 14... Arm spring, 15... Tension member, 16... Heater, 17... F /V conversion circuit, 18... comparator, Tr... transistor.

Claims

[Scope of Claim for Utility Model Registration] 1. A wiper device in which a wiper blade is attached to a wiper arm rotatably supported on a vehicle and is pressed against a window with a predetermined pressing force, the wiper arm being The wiper blade is pressed in the direction by a tensile member made of a combination of an arm spring and a shape memory alloy, and a heater activated by a vehicle speed detection means to heat the shape memory alloy. A wiper device characterized in that it is configured to be heated in accordance with the increase in temperature, to restore its memorized shape, and to be able to control the pressing force of the wiper to be strong at high speeds. 2. The wiper device according to claim 1, wherein the memory shape of the shape memory alloy is a spring shape.