Patent ID: 6292975
Filing Date: 2001-09-25
Classification: B60S

Abstract:
A wiper unit for wiping a windshield of a vehicle, comprising:a wiper motor provided with an armature rotating in a motor yoke, a gear case secured to said motor yoke, and an output shaft connected with said armature through a reduction gear;a motor arm fixed to the output shaft of said wiper motor;a wiper frame having a tubular shaped frame body, a body-fixation part to be fixed to the vehicle body at an end of said frame body and a pivot shaft holder;a frame cover fixed to said wiper frame;a pivot shaft rotatably supported by the pivot shaft holder of said wiper frame;a pivot arm secured to said pivot shaft; anda link connecting rod connected with said motor arm and said pivot arm, respectively; whereinsaid frame body of the wiper frame is provided with a case-fixing portion formed with a first and a second hole passing through said frame body;said gear case of the wiper motor is provided with a frame-holder portion formed with a third hole and having a semi-circular cross section to be fitted with said case-fixing portion of the wiper frame for supporting said wiper frame at the case-fixing portion;said frame cover is fixed on said case-fixing portion of the wiper frame; andsaid wiper frame is secured to said gear case of the wiper motor together with said frame cover by tightening a screw passed through the first and second holes formed in said case-fixing portion of the wiper frame into the third hole formed in said frame-holder portion of the gear case to substantially cover the whole circumference of said case-fixing portion with said frame cover and said frame-holder portion of the gear case.