Wiper arm with vibration damping

A wiper device comprising:

• a wiper blade for wiping a surface of a windshield;
• an arm piece having a first end and a second end, the first end being connected with said wiper blade;
• a rubber vibration damping member connected with the second end of said arm piece;
• an arm retainer connected with said rubber vibration damping member;
• an elastic member holding said arm piece, said elastic member being connected with an end portion of said arm retainer adjacent to said wiper blade, said elastic member having a spring constant greater than that of said rubber vibration damping member;
• an arm head pivotally supporting said arm retainer, said arm head being connected with a driving device for rotating said arm head within an angular range;
• and
• a spring member connected with said arm retainer and said arm head, said spring member urging said wiper blade toward the surface of the windshield, wherein, when said driving device is actuated to cause said wiper blade to wipe the surface of the windshield, said rubber vibration damping member dampens an exciting force generated by friction between said wiper blade and the surface of said windshield so that said force is not transmitted from said arm piece to said arm head.

A wiper device comprising:

• a wiper blade for wiping a surface of a windshield;
• an arm piece connected with said wiper blade, said arm piece having a generally rectangular transverse cross section with a major dimension lying in a first plane and being twisted to define a connection end portion, said portion having a rectangular transverse cross section with a major dimension lying in a second plane approximately perpendicular to said first plane;
• a rubber vibration damping member connected with said connection end portion of said arm piece;
• an arm retainer connected with said rubber vibration damping member;
• an elastic member holding said arm piece, said elastic member being connected with an end portion of said arm retainer adjacent to said wiper blade;
• an arm head pivotally supporting said arm retainer, said arm head being connected with a driving device for rotating said arm head within an angular range;
• and
• a spring member connected with said arm retainer and said arm head, said spring member urging said wiper blade toward the surface of the windshield, wherein, when said driving device is actuated to cause said wiper blade to wipe the surface of the windshield, said rubber vibration damping member dampens an exciting force generated by friction between said wiper blade and the surface of the windshield so that said force is not transmitted from said arm piece to said arm head.