Abstract: A wiper control device for a vehicle with a wiper includes a day/night detecting device for detecting whether the vehicle is in day-like or night-like conditions. The device also includes a moisture detection device that detects a quantity of moisture on the vehicle and a controlling device that controls the wiping action of the wiper based on a wiping sensitivity to the quantity of moisture detected. The controlling device adjusts the wiping sensitivity between night-like wiping sensitivity and day-like wiping sensitivity. The controlling device adjusts wiping sensitivity to night-like wiping sensitivity when the day/night detecting device detects night-like conditions and to day-like wiping sensitivity when the day/night detecting device detects day-like conditions. Additionally, when the day/night detecting device detects a change between day-like and night-like conditions, the controlling device delays switching between night-like and day-like wiping sensitivity for a predetermined delay time.

Abstract: The invention relates to a method of manufacturing a windscreen-wiper blade for a motor vehicle, the blade comprising at least one mounting element in which a housing and an attachment rail are arranged parallel to the longitudinal axis of said mounting element, an elastically deformable spine arranged inside said housing of the mounting element, and a wiping strip, comprising a heel interlocked inside said rail of the mounting element, the method comprising a step of hot deformation of at least one longitudinal end of the mounting element, so as to immobilise said spine and said wiping strip longitudinally inside said housing and said rail of the mounting element respectively.

Abstract: The present invention relates to a wiper system for a window of a motor vehicle. A wiper assembly is provided that oscillates over the window to remove moisture. A slider member extends outwardly and generally away from the wiper assembly. A pivotal lifter is affixed to the motor vehicle and engages the slider member to pivotally lift the wiper assembly away from the window upon deactivation of the wiper system. The present invention also relates to a corresponding method of making a wiper system in accordance with the above description.

Abstract: A windshield wiper system for use on a hybrid electric vehicle is capable of adjusting the delay between consecutive cycles based on engine state and vehicle speed. The system includes a windshield wiper and a motor coupled to the windshield wiper. A sensor generates an engine speed signal and another sensor generates a vehicle speed signal. A processor in communication with the sensors and wiper motor provides a drive signal to the wiper motor which is based on the engine and vehicle speed.

Abstract: Disclosed herein is an intelligent wiper control system for a vehicle. A rain sensor unit controls the speed of wipers based on the amount of rain. An electronic control unit analyzes the input signal of the input unit. An output unit controls the output integrated circuits, and adjusts and controls the driving of the wiper motor. The input unit includes a remote key for inputting a signal for controlling the driving of a wiper system and wirelessly transmitting the signal. An output unit causes an emergency light to blink when the drive power of the wiper motor is set to firm power and the driver turns off an ignition key and then gets out of the vehicle while wipers are turned on.

Abstract: An automatic debris removal apparatus for a wiper system that removes soluble and insoluble debris trapped between the wiper blade and the glass surface by lifting the wiper blade off the glass surface and then causing the wiper blade to drop onto the glass surface as a shake under urge of the biasing spring of the wiper arm, so as to thereby provide a shaking action which frees any trapped debris. An actuator selectively interacts with the pivotal portion of the wiper arm to effect shaking of the wiper arm to thereby free the wiper blade of the debris.

Abstract: A windscreen wiper supporting device comprises a hollow body, an interior of the body being installed with a retaining shaft; a lower side of the retaining shaft having a first magnetic unit; a second magnetic unit being at a lower side of the first magnetic unit and being within the body; the magnetic polarities of the first magnetic unit and second magnetic unit being identical; the body being formed with a through hole and a fixing hole; and an supporting rod having one end passing through the through hole; the retaining shaft and the fixing hole to be connected to the body; and another end of the supporting rod exposed out of the body so as to form as an supporting portion. The body has a cover and is installed with a combining seat which has a U shape or an H shape. The combining seat is installed with a nut and a screw.

Abstract: Windshield wiper device, in particular for a motor vehicle, with at least one wiper arm (11) and an engine hood (12) that can be raised in the case of an impact, wherein the at least one wiper arm (11) can be moved in the case of an impact into a position below a windshield (10) or into a position in the area of a wiper field.

Abstract: The invention provides a method and a device for cleaning of the optical face of a refractive element for a near field optical scanning apparatus. A magnetically susceptible cleaning material is used to facilitate effective cleaning of the refractive element without damage to the element. The method according to the invention can be combined with known cleaning methods if desired.

Abstract: The invention relates to a protective cap (20) for a wiper shaft (8) driven by a wiper drive (6), pertaining to a window wiper arrangement, especially a windscreen wiper system (4) of a motor vehicle. Said protective cap comprises an opening (36) for the wiper shaft (8), a ring seal (34) inserted into the opening (36), and a peripheral dust lip (32) on the front end (30) opposing the wiper drive (6). A supporting bearing (40) for supporting the protective cap (20) is provided on a peripheral surface of the wiper shaft (8).

Abstract: The invention starts from a wiper blade, which is constructed of a rubber profile (12) with a wiper lip (16) and at least one supporting element (20), which can be connected in its center region in an articulated manner to one end of a wiper arm via a connecting device (22), wherein the connecting device (22) with claws (26) clasps the supporting element (20) laterally and from the side, which is facing the wiper lip (16), and is secured in the axial direction on a wiper strip (10) of the wiper blade. It is proposed that the connecting device (22) have on one side, which faces a top strip (14) of the wiper strip (10), a compartment (36), whose wall that is adjacent to the top strip (14) is configured as a resilient clip (38), which in a mounted state is pressed against the top strip (14) by a bracket (42), which is inserted from a front side into the compartment (36).

Abstract: A motorcycle or any helmet with a visor wiper. Simply an horizontal bar from one side of the helmet to the other side for most common full face helmets. It would be then manually moved up and down to wipe off water that as accumulated on the visor, anchor disks on each side hold the wiper assembly on the visor with a peel and stick 3m double sided tape.

Abstract: A vitreous system of the invention is provided for use particularly as windowpanes of a car or the like vehicle, and is always kept clean over its whole surface. A multi-layer vitreous body ‘A’ forming the system is composed of an outside glass plate (1), an inside glass plate (2) and a stratified air space (3) defined between the inside and outside plates. A number of jetting orifices (1a) are formed to penetrate the outside plate (1), and a compressor (5) is connected through a piping (4) to the air space (3) so as to charge it with a compressed air, so that this air is blown out through the orifices (1a).

Abstract: A wiper cover is mounted in an opening in a vehicle housing and receives a wiper arm which pivots within the opening. The cover has a hollow body mounted in the opening, a rear flap which projects upwardly and forwardly from a rear side of the body, and a front flap which projects upwardly and rearwardly from a front side of the body. The front flap extends above and overlaps a portion of the rear flap. The flaps substantially cover the opening and slidably engage the wiper arm as it pivots within the opening. The body has upper and lower flanges which form a groove therebetween which receives an edge of the housing. The flaps include a notch and a recess which receives the wiper arm when the wiper arm is in a park position.

Abstract: A wiper blade made of a compound having a methyl vinyl silicone polymer, a filler, and a friction-reducing additive is provided. The friction-reducing additive is present in an amount from between about 5 and 42 weight percent, preferably 11 percent. The average particle size of the friction-reducing additive is preferably less than about 25 microns, thereby permitting extrusion of the compound into the shape of a wiper blade. Polytetrafluoroethylene is preferred as a friction-reducing additive, but other substances, such as boron nitride or graphite could be used.

Abstract: The invention relates to a windscreen wiper, comprising a protection device for the electric motor for the drive thereof and corresponding method. The windscreen wiper comprises a DC motor (2) with first, second and third carbon contacts (10, 14, 40) rubbing on the rotor thereof. The first carbon contact (10) is the earth, the second is selectively connected to a DC current supply (17) and the third is connected to neither the earth nor the DC current supply (17). A sub-assembly for detection of sticking of the electric motor (2) provides information on the sticking of the motor. Voltage measuring means between the first and the third carbon contacts (10, 40) permit the taking of a first measured voltage value which is compared to a first threshold value to generate further second information on the sticking of the electric motor (2) if said voltage is lower than the first threshold value.

Abstract: What is unique and special about my Shades with Blades is not only is it a safety necessity but also all working parts that make the wipers actually work are going to be hidden inside frames, making them look just like another bad ass pair of biker riding glasses until bad weather sets in. Now, no worry as long as you have a pair of Shades with Blades by James Herring, an old school biker who rides is Panhead year round. Be safe.

Abstract: A central connecting device (36) for a flat blade style wiper blade assembly (20) includes a plastic intermediate base (38) that is fixed, such as by ultrasonic welding, to a pair of flexors (26) extending the length of the wiper blade assembly (20). The intermediate base (38) includes a recessed deck section (42) for receiving a metallic housing (54). The housing (54) is heat-staked in position to the intermediate base (38) to secure the two elements together as an integral unit. A rivet (78) extends transversely across the sidewalls (58) of the housing (54) for adjoining to a universal connector (82) or other suitable adaptor or by direction connection to the end of a wiper arm.

Abstract: A flat blade windshield wiper blade (12) has a naturally elongated curve with a delicate wiper element (16) to be protected during shipping and display for retail sales purposes. A protective package (12) surrounds the wiper (12). The package (12) is made from a single piece of sheet stock and includes a flexible, outwardly bowed front panel (24), a back panel (26), and opposing left (30) and right (28) side panels adjoining respective sides of the front (24) and back (26) panels. Top (32) and bottom (34) end flaps extend between the front (24) and back (26) panels for forcing the front (24) panel to form in a generally semi-cylindrical configuration bowed outwardly relative to the back panel (26). The wiper (12) is disposed in a shipping condition in the package (12), with a connector (22) feature of the wiper (12) bearing in direct pressing contact with the bowed front panel (24).

Abstract: Forward view apparatus (10) for a motor vehicle, to enable the driver of the vehicle to view an image of objects which are located forward of the apparatus (10), includes a housing (12) in which a rear view mirror (14) is located. A two-mirror arrangement (20, 24) within the housing (12) provides an image of objects forward of the assembly (10) in a viewing portal (16). The first mirror (20) is planar and adjustable. A second mirror (24) is fixed and has a curved reflecting surface. The reflecting surface of the fixed mirror (24) is aspheric, spherical, substantially spherical, parabolic or quasi-parabolic. A window (26) is provided on the forward side of the housing, to enable light to pass to the two-mirror arrangement (20, 24). A shutter (332) is able to close across the window (26) to prevent bright lights or other distracting images being seen by the driver.

Abstract: A vibrating wiper blade that is functional and attractive. A standard wiper blade can be engineered to accommodate vibrating motors in a sleek and decorative design. Attached to the wiper blades and vibrating motors are tailor made and smoothly attached and designed electrical wiring. The vibrating motors may be engineered on wiper blades from the manufacturing stage, or provide at outlet stores and travel plazas as clip-on models with wiring attached under the hood, and/or controls quickly extended through a driver window. The vibrating motors will facilitate the removal of ice and snow from windshield wiper blades while avoiding hopping and skipping on the windshield. Tailor engineered models may be designed with a direct vibrating spring loaded pin or pistion to strike the wiper blade head. All of this is designed at minimal cost and complexity.

Abstract: A rubber material for wiper blades of windshield wipers or for motor vehicle tires, is disclosed that contains a copolymer based on isoprene and at least one other polymerizable monomer.

Abstract: A transparent windshield wiper device according to the present invention includes a transparent wiper arm and a transparent attachment bracket pivotally mounted to the transparent wiper arm. A transparent blade is removably coupled to the transparent attachment bracket. The transparent wiper arm and transparent attachment bracket may be constructed of polymethylene terephthalate, cellulose acetate butyrate, polycarbonate, or glycol modified polyethylene terephthalate. The wiper blade is constructed of a malleable and transparent material and includes internal fiber reinforcement that is also transparent. Further, the wiper blade is UV stabilized and includes an antiglare layer.

Abstract: A wiper installation (1) which is easy to install and can be fixed on the body without screws. For this purpose, a plate-shaped area (15, 16) having a through bore (17, 18) is provided on both on the wiper installation side and on the vehicle side. A clamp lock (20) is comprised of a tie bolt (21) that can be inserted through the bores (17, 18) and a tension lever (22) which is rotatably disposed on its head portion (26). The clamp lock (20) is made of plastic and manufactured in a multi-component injection molding process as a one-part piece with a tension lever (22) rotatably disposed on the tie bolt (21).

Abstract: Wiper blades are connected to wiper arms, respectively, to wipe a wiping surface of a vehicle front window glass. One of the wiper arms includes a cover portion, which at least partially covers at least one of the other wiper arm and the wiper blade connected thereto to continuously arrange the wiper arms one after the other along a lower edge of the wiping surface when each of the wiper blades is placed in a corresponding storage position thereof.

Abstract: A wiper structure for a window glass, includes a wiper arm comprising a support arm provided on the wiper arm; and a wiper blade comprising a blade main body, the wiper blade being supported on the wiper arm in an asymmetrical manner about a connecting point, the wiper blade main body being supported at a plurality of support points on the support arm, wherein a spacing between any two adjacent support points of the plurality of support points is set wider as a curvature of the window glass increases.

Abstract: The present invention provides a wiper device for safety helmet that comprises a helmet housing, a touch device, a drive and a wiper. When driving on a rainy day, a user's teeth occlude and come into contact with the touch device that actuates the drive through cables, thereby making the wiper oscillate on a surface of a glass plate so as to wipe rainwater off the surface of the glass plate and enhance the visibility and safety when driving on a rainy day.

Abstract: A wiper motor has an output shaft that outputs a to-and-fro rotation to swing a wiper pivotally. A transmission mechanism transmits the rotational force from the motor body. A clutch mechanism lets the transmission mechanism run idle not to transmit the rotational force from the transmission mechanism to the output shaft when the output shaft is subjected to a torque larger than an engagement releasing torque. The engagement releasing torque is specified to a value larger than a maximum wiping torque to which the torque applied by the wiper onto the output shaft is estimated to reach during a normal wiping operation of the wiper.

Abstract: A windshield wiper device (10) is proposed, in particular for a motor vehicle, comprising at least: one wiper shaft (28) that is provided with a recess (46); a means (32) for partially accommodating the wiper shaft (28), a free end (40) of which protrudes from the accommodating means (32); an essentially annular locking element (48) that is provided with an interruption (54) along the circumference thereof, is arranged in the recess (46), and is used for at least partially locking the wiper shaft (28) in an axial direction inside the accommodating means (32); wherein the locking element (48) has essentially a rectangular structure in cross section; and the recess (46) encompasses at least one slope (56) in the axial direction of the wiper shaft (28), along which the locking element (48) can glide when a predetermined, essentially axial force (F) is applied to the wiper shaft (28).

Abstract: A novel blade assembly for windshield wipers is provided herein. The blade assembly mainly contains a number of tubular segments cascaded in series by a number of connectors. At least a flexible strip is threaded through the series-connected tubular segments to provide even distribution of pressure against the windshield. Each connector has a body for sticking into the two neighboring tubular segments so as to cascade the two tubular segments together. The body of the connectors has at least a through channel for the flexible strip's passing through. The aperture of the through channel decreases from the two ends towards the center of the body, making the blade assembly easier to bend and more conforming to the windshield's curvature.

Abstract: A wiper with a light emitter formed by providing a light emitting function to a wiper for wiping off a wiped surface, the wiper including a linear light emitting part visible from the outside disposed on the outside of a wiper blade or a wiper arm for wiping operation and a light shielding device provided on the wiper along the light emitting part so that a person positioned on the inside of the wiped surface is not obstructed visually by the light beam emitted from the light emitting part.

Abstract: A wiper spoiler is disclosed. The wiper spoiler a top cover having a battery recess at the center thereof and having a top edge mounted with a holding plate provided with a symmetrical elongated holes at the two lateral sides of the plate; a bottom cover having a cavity at the center of the cover and having two lateral sides provided with a securing slot; a circuit board positioned at the cavity of the bottom cover, and having two ends mounted respectively with different color LED; two transparent plates being mounted onto a securing slot of the bottom cover, having one end protruded to form an insertion section and having a protruded section on the surface thereof and corresponding to the elongated hole of the top cover; a pad mounted at the outer ring of the circuit board at the cavity of the bottom cover and having two ends respectively mounted with a mounting section having a mounting hole.

Abstract: A windscreen wiper device comprising an oscillating arm and a frame connected thereto for receiving a wiper blade, which device includes a life span indicator, characterized in that said indicator is sensitive to water. The indicator can change its color in dependence on the length of time during which the indicator has-been exposed to water.

Abstract: A method is provided for improving the wiping capabilities of a windshield wiper by causing the windshield wiper blade to vibrate or oscillate in a direction parallel to the longitudinal centerline of the blade during a windshield wiper sweep. The vibrating mode causes less wear on the blade due to windshield abrasion since the blade edge does not contact the same eroded point on the windshield all the time. Secondly, any debris that is caught underneath the blade is quickly ejected due to the vibrating action. In one embodiment, an electromechanical vibrating unit is secured at one or more positions to the blade, with the actuator being driven by a 12-volt source and provided with a quickie disconnect at the center of the blade support structure.

Abstract: A wiper connector for a motor vehicle intended for the connection and articulation between a wiper arm and a component of a wiper blade is engaged longitudinally from rear to front inside the front end of the arm, which is curved longitudinally towards the rear in the form of a U. The wiper connector includes at least one elastically deformable element for securing the connector in the engaged position inside the front end of the arm and two longitudinal vertical flanks, which are designed to be received between two lateral wings of the blade component. The wiper connector is locked in the engaged position in the arm by a safety fastener mounted so as to be able to move between a closed position, in which it extends with regards to the securing element in order to prevent its elastic deformation, and an open position allowing the disengagement of the connector from the arm.

Abstract: A transparent windshield wiper assembly is disclosed. The construction details of the assembly are similar to the construction of conventional available wipers but the assembly is fabricated from transparent plastic materials. The wiper blade and wiper arm are also provided with a photochromic dye to reduce glare on sunny days.

Abstract: A decoration light for windshield wiper which includes a windshield wiper press-in plate with an elongated opening, a decoration light element, a base, a waterproof rubber strip, and a circuit module. The decoration light element includes a see-through top. The base containing at its center a trough to receive the circuit module. The circuit module contains an IC, a vibration switch, a light sensitive element and LEDs. The top and the base are respectively inserted to the opening. When the windshield wiper is activated, the LEDs will flash with a given intermission during night hours.

Abstract: A wiper blade made of a compound having a methyl vinyl silicone polymer, a filler, and a friction-reducing additive is provided. The friction-reducing additive is present in an amount from between about 5 and 42 weight percent, preferably 11 percent. The average particle size of the friction-reducing additive is preferably less than about 25 microns, thereby permitting extrusion of the compound into the shape of a wiper blade. Polytetrafluoroethyiene is preferred as a friction-reducing additive, but other substances, such as boron nitride or graphite could be used.

Abstract: A pneumatic windshield clearing system for enhancing the safety of operating a vehicle in difficult environmental circumstances without the distraction of wipers. The pneumatic windshield clearing system includes an air source assembly coupled vehicle, a blower assembly for directing high pressure airflow towards the windshield of the vehicle, and a suction assembly for removing rain, snow, and other debris for m the windshield.

Abstract: A wiping system for use on a vehicle window comprises a window wiper assembly positioned proximate the window, a first sensor for detecting the presence of moisture on the window and a second sensor for detecting if the vehicle has been remotely started. A controller is coupled to the wiper assembly and to the first and second sensors and enables the wiper assembly when the vehicle has been remotely started and moisture is present on the window. The wiping system also comprises a third sensor for detecting the presence of moisture on the window, a fourth sensor for detecting vehicle shut-down, and a fifth sensor for sensing the temperature of the window. The controller is coupled to each of the third, fourth, and fifth sensors and enables the wiper assembly when the vehicle has been shut-down for less than a predetermined period of time, the temperature of the window exceeds a temperature threshold, and moisture is detected on the window.

Abstract: There is disclosed a wiper blade apparatus (1). The wiper blade apparatus is suitable for use with protective headgear, the headgear for example including a visor. The apparatus disclosed includes a visor (2), at least one wiper blade (3), a motor (4) for driving the wiper blade (3) and attachment means (5) for attaching the apparatus (1) to the headgear (10) and for retaining the visor (2) of the apparatus (1) on a visor (11) of the headgear (10). The device of the invention can be fitted to a motorcycle helmet.

Abstract: A laser apparatus for monitoring the rails of a railway or tramway line, characterized by comprising at least two measurement units mounted on a railway or tramway carriage and operating at last on the inner part of the two rails, along with said carriage is made to advance, and a unit for processing the signals transmitted by said measurement units, each of which comprises at least one triangulation reading device.

Abstract: A wiper blade made of a compound having a methyl vinyl silicone polymer, a filler, and a friction-reducing additive is provided. The friction-reducing additive is present in an amount from between about 5–42 weight percent, preferably 11 percent. The average particle size of the friction-reducing additive is preferably less than 6 microns, thereby permitting extrusion of the compound into the shape of a wiper blade. Polytetrafluoroethylene is preferred as a friction-reducing additive, but other substances, such as boron nitride or graphite could be used.

Abstract: The wiper control apparatus comprises a precipitation detector, a surrounding state detector and a wiper controller. The precipitation detector detects a precipitation condition at a position where the vehicle is. The surrounding state detector detects an exit of the vehicle out of a roofed space. The wiper controller controls the wiper to be in an automatic operation mode according to the precipitation condition detected by the precipitation detector, and controlling the precipitation detector to detect the precipitation condition following the exit detected by the surrounding state detector in a response time shorter than the normal response time for the precipitation detector to detect the precipitation not following the exit.

Abstract: A wiper cover is mounted in an opening in a vehicle housing and receives a wiper arm which pivots within the opening. The cover has a hollow body mounted in the opening, a rear flap which projects upwardly and forwardly from a rear side of the body, and a front flap which projects upwardly and rearwardly from a front side of the body. The front flap extends above and overlaps a portion of the rear flap. The flaps substantially cover the opening and slidably engage the wiper arm as it pivots within the opening. The body has upper and lower flanges which form a groove therebetween which receives an edge of the housing. The flaps include a notch and a recess which receives the wiper arm when the wiper arm is in a park position.

Abstract: A motor vehicle windscreen wiper of the type with a windscreen wiper brush which is articulated to a windscreen wiper arm. Moreover, the inventive wiper is of the type in which a connector is inserted longitudinally, from rear to front, inside the front end of the arm, said front end being bent back. Moreover, the connector, which is disposed between the arm and a brush component, has an elastically-deformable element that is used to block said connector in the inserted position. Furthermore, the wiper is of the type in which the connector includes two longitudinal edges which are received between two lateral flanges of the brush component. The invention is characterised in that it includes a safety clasp which is movably mounted between a closed position, in which said clasp extends opposite the blocking element in order to lock the connector in the inserted position, and an open position, which is used to release said connector.

Abstract: This invention relates to a novel automobile wiper holder with pressurized stability, warning effect and variable size, at least constituting the blade holder, the first connecting panel, the second connecting panel, the third connecting panel and the holder seat. The pressurized panel is design to be mounted on the both sides of surface of the holder seat so as to keep the wiper blade always pressed close to the windshield during the driving irrespective of the wind pressure applied to the wiper holder. The holder seat has a projected hollow body to house the a circuit linking to the lighting elements which will illuminate the transparent or translucent pressurized panel or semicircular tube in an effort to bring to the attention of the driver the poor vision in the bad weather. The second and the third connecting panels provide a plurality of retaining holes or retaining slides in collaboration with the cover panel for employing variable size of wiper blades.

Abstract: This invention relates to a novel automobile wiper holder with pressurized stability, warning effect and variable size, at least constituting the blade holder, the first connecting panel, the second connecting panel, the third connecting panel and the holder seat. The pressurized panel is design to be mounted on the both sides of surface of the holder seat so as to keep the wiper blade always pressed close to the windshield during the driving irrespective of the wind pressure applied to the wiper holder. The holder seat has a projected hollow body to house the a circuit linking to the lighting elements which will illuminate the transparent or translucent pressurized panel or semicircular tube in an effort to bring to the attention of the driver the poor vision in the bad weather. The second and the third connecting panels provide a plurality of retaining holes or retaining slides in collaboration with the cover panel for employing variable size of wiper blades.

Abstract: A windshield wiper glove constructed of waterproof and flexible material is designed to fit over and substantially cover a windshield wiper with the exception of the wiper arm. The glove serves the purpose of preventing the accumulation of snow, ice and other materials on the flexible portion of the windshield wiper so as to eliminate interference by these materials with the flexural movement of the wiper blade over a windshield, allowing a clean sweep of the windshield in inclement weather.

Abstract: A windshield wiper system activated by sensing rainwater via a rain sensor placed inside the wiping pattern when a multifunction switch lever is in automatic mode. A rain sensor module activates a relay for low speeds and/or a relay for high speeds depending on the detected amount of rainwater. A first voltage detecting means detects battery voltage, a second voltage detecting means detects voltage of an automatic signal, and a microcomputer adjusts the sensitivity of the rain sensor based on a voltage ratio of the automatic signal voltage and the battery voltage. A reformed wiring structure connects the multifunction switch and the rain sensor module, which contributes to a reduction of the weight and cost of the wiring harness. The sensitivity of the rain sensor is not affected by a voltage change.