Wiper driving system for vehicle

A wiper driving system for a vehicle having one or more wiper arms, comprising:

• a first driving shaft located at a fixed point on an automotive body;
• a wiper arm fixed to said shaft;
• a wiper link having one end thereof pivotally connected to the crank of a motor for driving a wiper, said wiper link being reciprocated by said crank;
• a first lever fixed at one end to said first driving shaft;
• an intermediate link having one end pivotally connected to the other end of said wiper link and the other end thereof to the other end of said first lever, said intermediate link transmitting the reciprocation of said wiper link to said first lever so that the latte oscillates said driving shaft to oscillate said wiper arm between upper and lower positions;
• a second lever having one end thereof pivotally connected to the pivotal connection between said intermediate link and said wiper link;
• a switching lever pivotally mounted at a fixed point on the automotive body and pivotally connected to the other end of said second lever;
• stops fixed to the automotive body to limit movement of said switching lever to a predetermined angle between two positons;
• and
• turn-over spring means connected to said switching lever and to the automotive body for yieldingly retaining said switching lever in either of said two positons,
• whereby siad switching lever in one of said two positions limits angular movement of said wiping arm between an upper position and first lower position and in the other of said two positions limits and angular movement of said wiper arm between said upper position and a second lower position.