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A wiper motor has an output shaft, which is reciprocally pivoted forward and backward upon energization of the wiper motor and outputs a drive force for driving first and second wiper arms. A crank arm is integrally pivotably fixed to the output shaft. First and second connecting rods are pivotably connected to first and second connecting points, respectively, of the crank arm. A first lever arrangement is connected between the first connecting rod and the first wiper arm to reciprocally pivot the first wiper arm upon reciprocal movement of the first connecting rod. A second lever arrangement is connected between the second connecting rod and the second wiper arm to reciprocally pivot the second wiper arm upon reciprocal movement of the second connecting rod.
Claims:1. A wiper system for a vehicle, comprising:first and second wiper arms that are placed one after another in a longitudinal direction of the wiper system;a wiper motor that includes an output shaft, which is reciprocally pivoted forward and backward upon energization of the wiper motor and outputs a drive force for driving the first and second wiper arms;a crank arm that is integrally pivotably fixed to the output shaft;first and second connecting rods are pivotably connected to first and second connecting points, respectively, of the crank arm, wherein the first and second connecting points are located on opposite sides, respectively, about a fixing point of the crank arm that is fixed to the output shaft, and the first and second connecting rods are reciprocally moved when the crank arm is reciprocally pivoted forward and backward by the output shaft;a first lever arrangement that is connected between the first connecting rod and the first wiper arm, wherein the first lever arrangement reciprocally pivots the first wiper arm relative to a body of the vehicle when the first connecting rod is reciprocally moved; anda second lever arrangement that is connected between the second connecting rod and the second wiper arm, wherein the second lever arrangement reciprocally pivots the second wiper arm relative to the body of the vehicle when the second connecting rod is reciprocally moved.
2. The wiper system according to claim 1, wherein:the first lever arrangement includes:a pivot shaft that is pivotably supported relative to the body of the vehicle, wherein the first wiper arm is integrally pivotably fixed to the pivot shaft; anda pivot lever that is integrally pivotably fixed to the pivot shaft and is pivotably connected to the first connecting rod, wherein the pivot lever is placed on a predetermined side of the wiper system about the pivot shaft in a transverse direction of the wiper system, which is perpendicular to the longitudinal direction of the wiper system; andthe second lever arrangement is pivotably supported relative to the body of the vehicle by first and second rotational shafts, which are spaced from each other, and includes:a main lever that is pivotably supported by the first rotational shaft and is pivotably connected to the second connecting rod, wherein the main lever is placed on the predetermined side of the wiper system about the first rotational shaft in the transverse direction of wiper system;a sub-lever that is pivotably supported by the second rotational shaft, wherein the sub-lever is placed on the predetermined side of the wiper system about the second rotational shaft in the transverse direction of the wiper system; anda connecting lever that is pivotably connected to a swing end portion of the main lever at a first connecting point of the connecting lever and is pivotably connected to a swing end portion of the sub-lever at a second connecting point of the connecting lever spaced from the first connecting point of the connecting lever, wherein the second wiper arm is connected to the connecting lever.
3. The wiper system according to claim 2, wherein the main lever includes:a first lever portion that is pivotably connected to the second connecting rod; anda second lever portion that is pivotably connected to the connecting lever and is displaced from the first lever portion in an axial direction of the first rotational shaft.
4. The wiper system according to claim 2, wherein the connecting lever includes:a lever main body portion that is connected to the main lever and the sub-lever; andan extended portion that extends from the lever main body portion, wherein the second wiper arm is integrally pivotably fixed to the extended portion.
5. The wiper system according to claim 1, wherein:the first and second connecting rods are connected to the crank arm on one axial side of the crank arm in an axial direction of the output shaft;at least one of the first and second connecting rods has a bent portion that limits interference between the first and second connecting rods when the crank arm is reciprocally pivoted forward and backward; andthe bent portion is bent in a direction that is perpendicular to the axial direction of the output shaft.
6. The wiper system according to claim 1, wherein at least one of the first and second connecting points of the crank arm, which are connected to the first and second connecting rods, respectively, is displaced from the fixing point of the crank arm in an axial direction of the output shaft.
7. The wiper system according to claim 1, further comprising a frame member that supports the wiper motor, wherein the output shaft extends through the frame member, and the wiper motor and the crank arm are placed on opposite sides, respectively, of the frame member in the axial direction of the output shaft.
8. The wiper system according to claim 1, wherein:the first lever arrangement includes:a first pivot shaft that is pivotably supported relative to the body of the vehicle, wherein the first wiper arm is integrally pivotably fixed to the first pivot shaft;a first pivot lever that is integrally pivotably fixed to the first pivot shaft and is pivotably connected to the first connecting rod, wherein the first pivot lever is placed on a predetermined side of the wiper system about the first pivot shaft in a transverse direction of the wiper system, which is perpendicular to the longitudinal direction of the wiper system; andthe second lever arrangement includes:a second pivot shaft that is pivotably supported relative to the body of the vehicle, wherein the second wiper arm is integrally pivotably fixed to the second pivot shaft; anda second pivot lever that is integrally pivotably fixed to the second pivot shaft and is pivotably connected to the second connecting rod, wherein the second pivot lever is placed on the predetermined side of the wiper system about the second pivot shaft in the transverse direction of the wiper system.
9. The wiper system according to claim 1, further comprising first and second frame members, which are connected by a connecting frame, wherein:the first frame member supports the wiper motor and the first lever arrangement and is adapted to be fixed to the body of the vehicle; andthe second frame member supports the second lever arrangement and is adapted to be fixed to the body of the vehicle.
10. The wiper system according to claim 9, wherein:the first lever arrangement includes:a pivot shaft that is pivotably supported relative to the body of the vehicle, wherein the first wiper arm is integrally pivotably fixed to the pivot shaft; anda pivot lever that is integrally pivotably fixed to the pivot shaft and is pivotably connected to the first connecting rod; andthe first frame member includes a pivot holder, which is formed integrally with the first frame member and pivotably holds the pivot shaft.
11. The wiper system according to claim 9, wherein:at least one of the first and second connecting rods has a bent portion that limits interference between the first and second connecting rods when the crank arm is reciprocally pivoted forward and backward;the bent portion is bent in a direction that is perpendicular to an axial direction of the output shaft;a first connecting point of the at least one of the first and second connecting rods, which is pivotably connected a corresponding one of the first and second connecting points of the crank arm, is further spaced from the connecting frame in comparison to an apex of the bent portion; anda second connecting point of the at least one of the first and second connecting rods, which is pivotably connected to a corresponding one of the first lever arrangement and the second lever arrangement, is further spaced from the connecting frame in comparison to the apex of the bent portion.
12. The wiper system according to claim 1, wherein:the output shaft of the wiper motor is reciprocally pivoted forward and backward within a predetermined angular range, which is smaller than 180 degrees, upon the energization of the wiper motor to pivot the crank arm within the predetermined angular range; andat least one of the first and second connecting rods are arranged such that a first connecting point of the at least one of the first and second connecting rods pivotably connected to a corresponding one of the first and second connecting points of the crank arm does not cross a corresponding imaginary line, which connects between a rotational axis of the output shaft of the wiper motor and a second connecting point of the at least one of the first and second connecting rods pivotably connected to a corresponding one of the first lever arrangement and the second lever arrangement, when the crank arm is driven by the output shaft of the wiper motor to pivot within the predetermined angular range.
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How do you change a wiper motor on a 1995 Cavalier?
* Pry off the cover for the wiper arm nuts unscrew the nuts and remove both wiper arms * disconnect the windshield washer line remove the single retaining screw release the five push-in retainers and remove the cowl cover * Unplug the electrical connector from the windshield wiper motor * Remove the three wiper motor assembly retaining bolts and remove the wiper motor assembly * Detach the wiper transmission assembly from the wiper motor crank arm * Detach the wiper motor crank arm from the wiper motor assembly * Remove the three wiper motor retaining screws and detach the wiper motor from bracket
1999 Montana wipers wont park right I replaced the wiper motor. The wipers didnt park all the way down so i reset the wipers to park now they wont wipe the whole window they stay upright on int.?
Answer: Copied from another site: You have a mechanical park switch which is part of the wiper crank arm.it acts as a clutch plate ,more than likely the mechinisim will have to be replaced .or Either the crank arm is bad, out of adjustment, or the crank arm tab is bent. Install the crank arm on the wiper motor. Turn the ignition switch to the ACCY position. Set the wiper switch to PULSE position. The wiper motor should be operating. Turn the ignition switch to OFF when the wiper motor is in the innerwipe position. Important Do not rotate the wiper motor shaft during the installation of the crank arm. Install the crank arm on the wiper motor while maintaining a 4-8 mm (0.157- 0.315 in) gap between the V-grove in the wiper motor crank arm and the tab. Install the screw. Tighten Tighten the screw to 14-17 N
How do you replace wiper motor in a 95 eagle vision?
* Pry off the cover for the wiper arm nuts unscrew the nuts and remove both wiper arms * disconnect the windshield washer line remove the single retaining screw release the five push-in retainers and remove the cowl cover * Unplug the electrical connector from the windshield wiper motor * Remove the three wiper motor assembly retaining bolts and remove the wiper motor assembly * Detach the wiper transmission assembly from the wiper motor crank arm * Detach the wiper motor crank arm from the wiper motor assembly * Remove the three wiper motor retaining screws and detach the wiper motor from bracket
How do you replace wiper crank arm for 2001 Chevrolet impala?
how do you replace wiper crank arm 2001 chevrolet impala?
Is the part that the windshield wiper arm attaches to the motor?
The wiper arm is attached to the pivot which is part of the wiper transmission, which in turn is attached to the wiper motor.
How do adjust the wipers on a Pontiac Montana if they were stuck in the up position but now you have them coming down but not all the way?
Below is a cut and paste from another site. Also I have seen reviews of the Montana stating that the alignment of the wiper crank arm is a typical problem costing about 1.25 hours of labor by a dealer. Copied from another site: You have a mechanical park switch which is part of the wiper crank arm.it acts as a clutch plate ,more than likely the mechinisim will have to be replaced .or Either the crank arm is bad, out of adjustment, or the crank arm tab is bent. Install the crank arm on the wiper motor. Turn the ignition switch to the ACCY position. Set the wiper switch to PULSE position. The wiper motor should be operating. Turn the ignition switch to OFF when the wiper motor is in the innerwipe position. Important Do not rotate the wiper motor shaft during the installation of the crank arm. Install the crank arm on the wiper motor while maintaining a 4-8 mm (0.157- 0.315 in) gap between the V-grove in the wiper motor crank arm and the tab. Install the screw. Tighten Tighten the screw to 14-17 N?m (124-150 lb in). Install the crank arm cover and seal. Check the gap between the crank arm and tab. If the gap is not 4-8 mm (0.157- 0.315 in), remove the crank arm and repeat installation steps. Install the drive link on the crank arm. Tighten the two drive link screws. Tighten Tighten the two screws to 5 N?m (44 lb in). Install the wiper system module cover. Operate the wipers and check for proper operation. Another answer from another person. The wiper motor turns one direction to drive and work. To park the wipers the motor goes in reverse. With the cover off over the wiper motor mechanism, oil the cam-slider mechanism that slips over in the wiper park position. This "overdrives" motion to park the wipers below the window. Run the wipers watching the motion and then have someone turn the wiper off and you will see this action and see the area to oil. This is impossible to see if the wipers are not in position. A second thing to check which worked on my wipers when one stayed up was to manually move the wipers and physically by hand with the power off for safety. This seemed to reset an internal switch in the system. If you do not oil the cam mechanism, it will screw up again and again. When the cam does not operate properly, the motor seems to go into a safety shutdown that jacks up one wiper. I have not figured out 100% what happens if by chance or design. Also if your windsheld wiper does not turn on contact your car fixer
How do you change the wiper motor on a 2002 a4?
Remove the wiper arm from the wiper motor. Remove the wiring harness from the wiper motor. Remove the wiper motor retaining bolts. Reverse the process to install the new wiper motor.
How do you replace the wiper motor on a Honda accord?
Remove the wiring harness from the wiper motor. Remove the windshield wiper arm from the wiper motor. Remove the wiper motor retaining screws. Reverse the process to install the new wiper motor.
How replace the wiper motor Honda Civic?
Remove the wiper arm from the wiper motor. Remove the wiring harness. Remove the wiper motor retaining bolts. Reverse the process to install the new wiper motor.
How do you change the wiper motor on a 2001 Acura CL?
Wiper arm travel rod from the wiper motor. Remove the wiper motor wiring harness. Remove the wiper motor retaining bolts. Reverse the process to install the new wiper motor.
How do you change 2003 Honda Odyssey rear wiper motor?
Remove the rear wiper arm from the wiper motor. Remove the wiring harness from the wiper motor. Remove the wiper motor retaining bolts. Reverse the process to install the new wiper motor.
How do you replace a wiper motor for a 1999 Olds Cutlass?
Remove the wiper arm from your 1999 Oldsmobile Cutlass wiper motor. Remove the wiper motor wiring harness. Remove the wiper motor retaining bolts. Reverse the process to install the new wiper motor.
