Frictional resistance noise elimination device of windshield wiper

Abstract

The invention discloses a frictional resistance noise elimination device of a windshield wiper. The windshield wiper comprises a main frame and a pressing bar scraper. A pin joint wall is arranged in the center of the main frame, a movable base with a connecting piece connected in the middle is contained in the center of the pin joint wall in an extending mode, a plurality of corresponding transverse actuation holes are formed in the two side walls of the movable base towards the two lateral sides of the connecting piece, by arranging and positioning fixing pins in the two side walls of the pin joint wall in a pivoted and penetrating mode, the movable base is positioned through penetrating of the fixing pins and elastically moves through the transverse actuation holes, the two sides between the movable base and the pin joint wall are opposite to each other to form a pivoting-abutting space to be pivoted with elastic press bodies so that the movable base can be laterally pushed and propped, the movable base is made to be positioned in the pin joint wall to form two-segment separation assembly so that the connecting piece can be made to be connected with a connector of the windshield wiper, and the movable base can make eccentric movement along the transverse actuation holes in the side walls through pushing-abutting elastic pressing of the elastic press bodies on the two sides of the movable base. Thus, resistance and friction force from all directions can be absorbed through frictional resistance generated in the swing process of the windshield wiper at a proper movement angle and deviation pressing and propping, and thus the noise elimination purpose is achieved.

Description

technical field [0001] The present invention relates to a "wiper frictional resistance noise elimination device", in particular to a wiper frictional resistance noise elimination device for effectively absorbing resistance and friction from all parties when the wiper arm is connected to wipe to prevent noise. Background technique [0002] According to the wiper structure generally used at present, such as Figure 8 As shown, its wiper 30 is mainly composed of a fixed backbone frame 31 and an elastic bead scraper (not shown in the figure), wherein a buckle type or locking type connection is recessed in the center of the backbone frame 31 The seat groove 311 of the piece 312 is buckled together with a connector 41 with a buckle hole 411, so that the wiper arm 40 on the front windshield is connected to the connector 41, and the wiper arm 40 is swung back and forth to drive the wiper 30. The bead scraper is attached to the windshield to scrape away the attached rainwater or mud....

AI Technical Summary

Problems solved by technology

[0003] By the above-mentioned existing wiper structure, there are still following deficiencies: (1) especially when the bead scraper blade of its wiper 30 is against the windshield to scrape off water and dirt, it is easy to be caused by oil stains on the windshield, Dirty and uneven surfaces cause frictional resistance when the blades of the wiper 30 collide with the positive pressure of the windshield, causing the vibration of the wiper 30 to make a rattling sound, which affects the driving quality of the car; (2) especially When the car is running at high speed, due to the impact of the airflow on the blades of the wiper 30 and penetration into the bottom of the main frame 31, it is inevitable that the wiper 30 will vibrate when it swings up and down on the surface of the windshield, causing the wiper 30 to be overstressed. The frictional resistance is increased, and the connector 41 is buckled in the seat groove 311 under the rapid swiping action of the wiper arm 40 swinging from side to side, resulting in wear and tear, so the existing wiper 30 tends to generate noise in the rigid wiping action , not only affects the safety of the car when driving, but also reduces the wiper efficiency and shortens the service life of the wiper, which is not ideal

[0004] Also, in order to improve the resistance and friction of the above-mentioned conventional wipers, the commonly used automobile wipers are mostly strengthened: a wind suction plate is added on the wiper group to increase the strength of the wiper against the windshield when driving at high speed, or Improve the material, softness and shape of the wiper blade to improve the vibration of the wiper and increase the scraping effect. However, whether it is to add a suction plate to the wiper group or improve the structure of the blade In actual use, it is still impossible to improve the movement of the wiper to prevent resistance and friction, and it is necessary to improve

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