JP2016068810A - Wiper device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiper device for a vehicle which can effectively prevent that a cleaning liquid remains at a center upper region of window glass.SOLUTION: In a blade 14 having an injection part of a cleaning liquid attached to a tip of a turning arm 13, a tip region 14A of the blade 14 is constituted so as to be bendable, and the tip region 14A is bent so that the tip 14a of the blade 14 is directed to a rear side of a reciprocation direction when the blade 14 passes and moves in the vicinity of a specified region 101. By bending the tip region 14A of the blade 14 so that a tip of a second blade is directed to the outside of the specified region 101 when an extension direction of the second blade moves in a special control region, a direction of the cleaning liquid scattering from the tip 14a of the blade 14 is controlled, and a scatter of the cleaning liquid to the specified region 101 of window glass from the blade 14 is prevented.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a vehicle wiper device.

  BACKGROUND ART A vehicle wiper device is used as a device for wiping and cleaning rainwater and dirt on the surface of a vehicle window glass. A blade is provided on the moving end side of a rotating arm, and reciprocates on the surface of the window glass. The window glass is wiped and cleaned by moving it.

  In order to make wiping and cleaning more effective, a mechanism for spraying and supplying a cleaning liquid to the window glass surface is also provided. In recent years, a configuration has been used in which the cleaning liquid is sprayed from the blade itself in order to spray the cleaning liquid to a more appropriate position or region of the window glass.

  For example, Patent Document 1 discloses a wiper blade having a structure in which a cleaning liquid is sprayed toward a window glass surface. According to this technique, the cleaning liquid supply passage is formed in the packing member itself normally provided in the blade rubber corresponding to the blade body. Thereby, it is not necessary to provide a tube or a nozzle for spraying separately, and the structure is simplified and the structure is simplified.

JP-A-5-97017

  When the blade itself has a function of spraying the cleaning liquid as in the above background art, it becomes possible to spray the cleaning liquid relatively uniformly over a wide range with respect to the window glass. However, on the other hand, since the blade usually moves in a substantially circular motion in a situation where a considerable amount of cleaning liquid always exists in the front of its rotation direction, the cleaning liquid is moved radially outward of the blade moving region by the action accompanying the movement. Tend to jump out.

  In such a situation, particularly in a blade (second blade) in which the window glass also includes a region below the central upper region as the moving region, the cleaning liquid is pushed out to the central upper region of the window glass during the moving operation. It becomes. And the washing | cleaning liquid extruded to the center upper area | region of the window glass can no longer be wiped off with the said 2nd braid | blade.

  Therefore, the blade (first blade) including the central upper region of the window glass as the moving region remains until the next wiping operation is performed. Thus, in the situation where the cleaning liquid remains in the central upper region of the window glass, it may come down later, which is not a preferable situation for ensuring a good front field of view.

  In addition, in a vehicle that captures a situation in front that has been practically used in recent years and assists various driving operations based on this data, an imaging device such as a camera is installed in the central upper area of the window glass. The remaining state of the cleaning liquid adversely affects the function of the imaging device.

  FIG. 11 is a diagram illustrating a problem in a vehicle in which an imaging device such as a camera is installed in the upper central region of the window glass 100.

  Each of the first blade 12 and the second blade 14 reciprocates within a predetermined range to wipe the window glass 100. The operation area E1 of the first blade 12 is an area including the central upper region of the window glass 100, and the operation area E2 of the second blade 14 is an area including a lower portion of the central upper region of the window glass 100.

  The cleaning liquid scattered in the radial direction (indicated by an arrow 220) from the second blade 14 reciprocating in the specific area 101 on the window glass 100, which is an area corresponding to the angle of view of the imaging devices 16-1 and 16-2. It shows how it enters. Thus, in the situation where the cleaning liquid remains in the specific area 101, the functions of the imaging devices 16-1 and 16-2 are adversely affected.

  Therefore, there is a problem that it is desired to prevent the cleaning liquid from remaining in the central upper region of the window glass as much as possible in the blade having the function of spraying the cleaning liquid by itself.

  The present invention has been made in view of the above problems, and an object thereof is to provide a vehicle wiper device using a blade that can effectively prevent the cleaning liquid from remaining in the central upper region of the window glass. is there.

  A vehicle wiper device according to claim 1 that achieves the above object is a blade attached to a tip of a rotating arm, the first blade including a central upper region of a vehicle window glass in an operating range, and the first blade In the vehicle wiper device, comprising: a second blade having an operating range in a lower region of the operating range of the blade; and a blade driving unit that reciprocally moves the blades on the window glass in the operating range. The control unit that controls the second blade to reduce the time required for the tip of the second blade to pass when moving in the vicinity of the specific region specified in advance in the central upper region in the reciprocating region. It is provided with.

  According to this configuration, when the second blade passes and moves in the vicinity of the specific region, control is performed so as to shorten the time for the tip of the second blade to pass. Scattering of the cleaning liquid to the specific area at the upper center of the center is prevented, and it is possible to effectively prevent the cleaning liquid from remaining in the specific area.

  The vehicle wiper device according to claim 2 that achieves the above object is a blade attached to the tip of a rotating arm, the first blade including the central upper region of the vehicle window glass in the operating range, and the first blade In the vehicle wiper device, comprising: a second blade having an operating range in a lower region of the operating range of the blade; and a blade driving unit that reciprocally moves the blades on the window glass in the operating range. The tip of the second blade reciprocates when a reference axis passing through the center of the second blade orthogonal to the rotational direction of the second blade passes through at least a specific area specified in advance in the central upper area. It is characterized by comprising a control unit that controls the front side or the rear side in the moving direction.

  According to this configuration, when the second blade attached to the tip of the rotating arm moves so that the reference axis of the blade passes through the specific area, the tip is directed forward or backward in the reciprocating movement direction. Thus, the direction in which the cleaning liquid is ejected from the second blade in that region is controlled. Thereby, scattering of the cleaning liquid from the second blade to the specific area at the upper center of the window glass is suppressed, and it is possible to effectively prevent the cleaning liquid from remaining in the specific area.

  The vehicle wiper device according to claim 3 is the vehicle wiper device according to claim 2, wherein the second blade is bent so that the entire blade bends around a tip region or a support shaft including the tip of the blade. And the control by the control unit is such that when the reference axis of the second blade moves in the specific region, the bending control is performed so that the tip is directed forward or backward in the reciprocating movement direction. Features.

  According to this configuration, when the reference axis of the second blade moves in the specific area, the tip of the second blade is directed forward or backward in the reciprocating movement direction. By controlling, the ejection direction of the cleaning liquid from the second blade is controlled, and scattering of the cleaning liquid from the second blade to the specific region is prevented.

  A vehicle wiper device according to a fourth aspect is the vehicle wiper device according to the second aspect, wherein the second blade is rotatably supported at a tip of the rotating arm, and the control by the control unit is performed. When the reference axis of the second blade moves in the specific region, the second blade is controlled to rotate so that the tip of the second blade faces forward or backward in the reciprocating movement direction. It is characterized by doing.

  According to this configuration, when the reference axis of the second blade moves in the specific region, the second blade is rotated so that the tip of the second blade faces forward or backward in the reciprocating movement direction. By doing so, the direction in which the cleaning liquid protrudes from the second blade is controlled, and scattering of the cleaning liquid from the second blade to the specific region of the window glass is suppressed.

  A vehicle wiper device according to a fifth aspect is the vehicle wiper device according to any one of the first to fourth aspects, wherein the second blade is controlled so that a tip thereof faces rearward in a reciprocating movement direction. It is characterized by being.

  According to this configuration, by swinging the tip of the second blade backward in the rotational direction, the reaction force slidingly contacting the window glass or the like due to the swing compared to the case of swinging the tip forward in the rotational direction, That is, the resistance is reduced and the rocking can be easily performed.

  The vehicle wiper device according to a sixth aspect is the vehicle wiper device according to any one of the first to fifth aspects, wherein the specific area is a vehicle having an imaging device in an upper part of the inner side of the window glass. It is an area corresponding to the field angle range of the imaging apparatus.

  According to this configuration, in the window glass of the vehicle provided with the imaging device, the angle of view of the imaging device, that is, the ejection of the cleaning liquid by the second blade of the cleaning liquid toward the region of the window glass existing in the imaging range is suppressed. can do. Therefore, it is possible to effectively prevent the cleaning liquid from remaining on the window glass corresponding to the imaging range of the imaging apparatus, and the reliability of the imaging function is improved.

  According to the vehicle wiper device of the present invention, the scattering of the cleaning liquid from the second blade to the specific area at the center upper portion of the window glass is suppressed, and it is possible to effectively prevent the cleaning liquid from remaining in the specific area.

It is a schematic structure figure of the wiper device for vehicles in a 1st embodiment. It is explanatory drawing of the special control area | region which concerns on the wiper apparatus for vehicles of FIG. It is outline | summary explanatory drawing of a wiper apparatus. FIG. 4 is an enlarged cross-sectional view of a portion IV in FIG. 3 showing an outline of the actuator. It is operation | movement explanatory drawing of the 2nd wiper of the wiper apparatus for vehicles. It is operation | movement explanatory drawing of the 2nd wiper apparatus of the wiper apparatus for vehicles. It is a schematic block diagram of the wiper apparatus in 2nd Embodiment. It is operation | movement explanatory drawing of the 2nd wiper of the wiper apparatus for vehicles. It is operation | movement explanatory drawing of the 2nd wiper of the wiper apparatus for vehicles. It is a figure which shows the other example of an actuator typically. It is explanatory drawing which shows the problem in the vehicle by which imaging devices, such as a camera, were installed in the center upper area | region of window glass.

  Hereinafter, an embodiment of a vehicle wiper device of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic configuration diagram of a vehicle wiper device 10 according to the present embodiment, and is a view of a front window glass 100 of a right-hand drive vehicle as viewed from the outside. As shown in the drawing, a first blade 12 attached to the front end of the rotary arm 11 is provided on the window glass 100 on the right side of the passenger seat on the right side of the drawing so as to be rotatable on the left side of the driver seat. A second blade 14 is provided at the tip of the moving arm 13. In the case of a left-hand drive vehicle, the configuration is reversed left and right, but the description is omitted below.

  The first blade 12 reciprocates in a predetermined range by the operation of the rotating arm 11, and the second blade 14 reciprocates in the predetermined range by the operation of the rotating arm 13. The operation area E1 of the first blade 12 is an area including the central upper region of the window glass 100, and the operation area E2 of the second blade 14 is an area including the region below the central upper region of the window glass 100. And some overlap.

  An imaginary line passing through the longitudinal center 14c of the second blade 14 perpendicular to the rotational direction of the reciprocating second blade 14 is referred to as a reference axis L.

  In addition, a pair of cameras 16-1 and 16-2 are installed on the vehicle interior side of the window glass 100 as an imaging device for confirming the situation in front, and the region indicated by a two-dot chain line in the figure is This is the angle of view that is the shooting range of the cameras 16-1 and 16-2. This area is defined as a specific area 101. Based on the image information acquired by the cameras 16-1 and 16-2, the presence and distance of a forward object and the like are recognized and precedented, and auxiliary control for driving the vehicle is performed.

  Further, in the vehicle wiper device 10 of the present embodiment, a cleaning liquid injection section (not shown) is formed on the blades 12 and 14 themselves, and the cleaning liquid is injected. The cleaning liquid is jetted by supplying the cleaning liquid to the blades 12 and 14 by the jet pumps 22 a and 22 b controlled by the control unit 20. The cleaning liquid supply unit includes injection pumps 22a and 22b, and supplies the cleaning liquid stored in a cleaning liquid tank (not shown) to the cleaning liquid injection units of the blades 12 and 14, respectively.

  The outline of the second blade 14 will be described with reference to FIGS. FIG. 3 is a schematic explanatory view showing an outline of the second blade 14, and FIG. 4 is a cross-sectional explanatory view of the IV part of FIG. 3 showing an outline of the actuator.

  The tip region 14A including the tip 14a of the second blade 14 is moved forward or backward in the rotational direction of the second blade 14 along the window glass 100 by the bending means 15 and the actuator 18, that is, in the reciprocating movement direction. It is configured to be bendable. The bending means 15 divides the holder 17 that holds the blade rubber 16 of the second blade 14 into a holder main body portion 17A and a holder front end portion 17B that are connected to the front end of the rotating arm 11, and the front end of the holder main body portion 17A. The base end of the holder distal end portion 17B is rotatably connected by a shaft 17b. A first arm portion 17c and a second arm portion 17d are formed so as to protrude from the proximal end of the holder distal end portion 17B in each rotational direction of the second blade 14. By rotating the tip portion 17B about the shaft 17b with respect to the holder main body portion 17A, the tip region 16A of the blade rubber 16 swings according to the rotation.

  Although not shown, an urging means such as a spring for providing the holder tip 17B on the reference axis L is provided between the holder body 17A and the holder tip 17B.

  On the other hand, the actuator 18 includes a pair of first linear solenoid 19A and second linear solenoid 19B provided in the vicinity of the proximal end of the rotating arm 13 as shown in FIG.

  In the first linear solenoid 19A, a core 19Ab is housed in a casing 19Aa so as to be slidable in the axial direction, a solenoid 19Ad and a return spring 19Ae are housed, and a shaft portion 19Ac of the core 19Ab projects from the casing 19Aa. . The tip end of the shaft portion 19Ac is connected to the tip end of the first arm portion 17c formed at the tip end portion 17B of the second blade 14 via a connecting member 19a such as a wire.

  The core 19Ab is held on the distal end side by the urging force of the return spring 19Ae when the solenoid 19Ad is deenergized, and moves to the proximal end side when the solenoid 19Ad is urged, and the distal end is connected via the connecting member 19a. The first arm portion 17c of the portion 17B is pulled to rotate the tip region 14A of the second blade 14.

  Similarly, in the second linear solenoid 19B, the core 19Bb is housed in the casing 19Ba so as to be slidable in the axial direction, and the solenoid 19Bd and the return spring 19Be are housed. It protrudes. The distal end of the shaft portion 19Bc is coupled to the distal end of the second arm portion 17d of the distal end portion 17B of the second blade 14 via a coupling member 19b such as a wire.

  The core 19Bb is held on the distal end side by the biasing force of the return spring 19Be when the solenoid 19Bd is de-energized, and moves to the proximal end side when the solenoid 19Bd is biased, and the distal end is connected via the connecting member 19b. By pulling the second arm portion 17d of the portion 17B, the tip region 14A of the second blade 14 is rotated.

  The pivoting operation of the pivoting arms 11 and 13 for operating the blades 12 and 14 is performed by the drive motors 24a and 24b controlled by the control unit 20, and the tip range by the cleaning liquid jetting and bending means 15 is performed. The bending and extension of 14 </ b> A is performed by an actuator 18 controlled by the control unit 20.

  FIG. 2 is an explanatory diagram of the special control region S of the second blade 14 in FIG.

  As described above, the specific area 101 is an area corresponding to the field angle range of the cameras 16-1 and 16-2, which are video devices in a vehicle having a video device in the upper interior of the window glass 10. A region where the reference axis L of the second blade 14 passes through the specific region 101 when the second blade 14 moves in the work area E2 is defined as a special control region S. When the second blade 14 passes through the special control region S, the control unit 20 controls the actuator 18.

  FIGS. 5 and 6 are diagrams for explaining the operation of the second blade 14. FIG. 5 shows how the second blade 14 moves from the lower inversion position R1 to the upper inversion position R2 in the operation area E2. Schematically shows a movement from the upper inversion position R2 to the lower inversion position R1. Each straight line shown in the operation area E2 schematically shows the position and state of the second blade 14 for each predetermined time. An arrow F shown at the tip 14a of the second blade 14 represents the moving direction of the cleaning liquid.

  That is, when the second blade 14 is rotated from the lower reversing position R1 toward the upper reversing position R2, the cleaning liquid is sprayed forward of the second blade 14 in the rotating direction, and the cleaning liquid is then collected on the window glass 100. A part flows along the blade rubber 16 of the rotating second blade 14, and is skipped or flows in the extending direction of the blade rubber 16 from the tip 14 a of the second blade 14.

  Here, if the second blade 14 is linear, that is, in a state where the holder tip 17B is held on the reference axis L, the cleaning liquid blown off by the second blade 14 Since it flows in the extending direction that flows along the tip region 14A of the blade 14, that is, the extending direction of the second blade 14, when the second blade 14 moves in the special control region S, the second blade 14 The cleaned cleaning liquid flows into the specific area 101.

  Therefore, as shown in FIG. 5, when the second blade 14 moves in the special control region S, more specifically, when the reference axis L enters the special control region S, the control unit 20 20 energizes the solenoid 19Ad of the first linear solenoid 19A of the actuator 18, and the shaft portion 19Ac of the core 19Ab pulls the first arm portion 17dc of the holder distal end portion 17B via the connecting member 19a to move the holder distal end portion 18B. By rotating, the tip region 14A of the second blade 14 swings rearward in the moving direction of the second blade 14, and the tip 14a is directed to the lower inversion position R1 side. That is, the time for the direction of the tip 14a of the second blade 14 to pass through the specific region 101 is extremely shortened.

  Further, by swinging the tip region 14A backward in the movement direction of the second blade 14, the reaction force due to sliding contact of the window glass 100 or the like due to the swing is compared with the case where the tip region 14A is swung forward in the movement direction. That is, the resistance is reduced and the rocking can be easily performed.

  In addition, the cleaning liquid that flows and moves in the extending direction of the second blade 14 moves along the tip region 14A, and the cleaning solution that scatters from the tip 14a is suppressed from flowing into the specific region 101.

  When the reference axis L of the second blade 14 passes through the special control region S, the control unit 20 deenergizes the solenoid 19Ad of the first linear solenoid 19A of the actuator 18, and the front end of the holder by the biasing force of the return spring 19Ae. The portion 17B is held on the reference axis L that is on the distal end side, and the second blade 14 is returned to a linear shape.

  On the other hand, when the cleaning liquid is sprayed forward in the rotational direction of the second blade 14 when the second blade 14 rotates from the upper reversal position R2 to the lower reversal position R1, the cleaning liquid is sprayed on the window glass 100. A part flows along the blade rubber 16 of the rotating second blade 14, and is skipped or flows from the tip 14 a of the second blade 14 in the extending direction of the blade rubber 16.

  Therefore, as shown in FIG. 6, the control unit 20 performs control when the second blade 14 moves in the special control region S, more specifically, when the reference axis L enters the special control region S. The portion 20 urges the solenoid 19Bd of the second linear solenoid 19B of the actuator 18, and the shaft portion 19Bc of the core 19Bb pulls the first arm portion 17b of the holder tip portion 17B via the connecting member 19b to hold the holder tip portion 17B. And the tip region 14A of the second blade 14 is swung back in the moving direction of the second blade 14 so that the tip 14a faces the upper reversing position R2. That is, the time for the direction of the tip 14a of the second blade 14 to pass through the specific region 101 is extremely shortened.

  In addition, the cleaning liquid that flows and moves in the extending direction of the second blade 14 moves along the tip region 14A, and the cleaning solution that scatters from the tip 14a is suppressed from flowing into the specific region 101.

  When the reference axis L of the second blade 14 passes through the special control region S, the control unit 20 deenergizes the solenoid 19Bd of the second linear solenoid 19B of the actuator 18, and the tip of the holder is energized by the biasing force of the return spring 19Be. The portion 17A is held on the reference axis L that is on the distal end side, and the second blade 14 is returned to a linear shape.

  That is, when the second blade 14 moves from the lower inversion position R1 to the upper inversion position R2 or from the upper inversion position R2 to the lower inversion position R1, the reference axis L of the second blade 14 moves through the specific region 101. At this time, by controlling the front end 14a of the second blade 14 to face rearward in the movement direction, the direction in which the cleaning liquid is pushed out and ejected from the second blade 14 is controlled, and the window glass 100 from the second blade 14 is controlled. Scattering of the cleaning liquid to the specific area 101 at the upper center of the center is prevented, and it is possible to effectively prevent the cleaning liquid from remaining in the specific area.

  In the above-described embodiment, the tip region 14A of the second blade 14 is controlled to face rearward in the moving direction of the second blade 14, but can be controlled to face frontward.

(Second Embodiment)
The second embodiment will be described with reference to FIGS. 7 to 9 with reference to FIGS. The other configurations are the same except that the blades are different from those of the first embodiment. The different configurations are mainly described, and the corresponding portions are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 7 is a view showing an outline of the second blade 14, and FIGS. 8 and 9 are operation explanatory views.

  The second blade 14 includes a holder 17 that holds the blade rubber 16, and a center portion in the length direction is rotatably supported by a shaft 17 e at the tip of the rotating arm 11. A first arm portion 17c and a second arm portion 17d are formed to protrude in the rotation direction of the blade 14. Although not shown, an urging means such as a spring for providing the second blade 14 on the reference axis L is provided between the holder 17 and the rotating arm 11. On the other hand, the actuator 18 is constituted by a pair of first linear solenoid 19 </ b> A and second linear solenoid 19 </ b> B provided near the base end of the rotating arm 13. The actuator 18 is the same as that of the first embodiment, and detailed description thereof is omitted.

  8 and 9 are explanatory views of the operation of the second blade 14, and FIG. 8 shows how the second blade 14 moves from the lower inversion position R1 to the upper inversion position R2 in the operation area E2. Schematically shows a movement from the upper inversion position R2 to the lower inversion position R1. Each straight line shown in the operation area E2 schematically shows the position and state of the second blade 14 for each predetermined time.

  That is, when the second blade 14 is rotated from the lower reversing position R1 toward the upper reversing position R2, the cleaning liquid is sprayed forward of the second blade 14 in the rotating direction, and the cleaning liquid is then collected on the window glass 100. A part flows along the blade rubber 16 of the rotating second blade 14, and is skipped or flows in the extending direction of the blade rubber 16 from the tip 14 a of the second blade 14.

  As shown in FIG. 8, when the second blade 14 moves in the special control region S, more specifically, when the reference axis L enters the special control region S, the control unit 20 The solenoid 19Ad of the first linear solenoid 19A of the actuator 18 is energized, and the shaft portion 19Ac of the core 19Ab pulls the first arm portion 17c of the second blade 14 via the connecting member 19a to move the second blade 14. By rotating, the tip 14a of the second blade 14 is swung back in the moving direction of the second blade 14, and the tip 14a is directed toward the lower reverse position R1. That is, the time for the direction of the tip 14a of the second blade 14 to pass through the specific region 101 is extremely shortened. In addition, the cleaning liquid that flows in the extending direction of the second blade 14 and scatters from the tip 14 a is suppressed from flowing into the specific region 101.

  When the reference axis L of the second blade 14 passes through the special control region S, the control unit 20 deenergizes the solenoid 19Ad of the second linear solenoid 19A of the actuator 18, and the second force is applied by the urging force of the return spring 19Be. The blade 14 is returned to a straight line.

  On the other hand, when the cleaning liquid is sprayed forward in the rotational direction of the second blade 14 when the second blade 14 rotates from the upper reversal position R2 to the lower reversal position R1, the cleaning liquid is sprayed on the window glass 100. A part flows along the blade rubber 16 of the rotating second blade 14, and is skipped or flows from the tip 14 a of the second blade 14 in the extending direction of the blade rubber 16.

  Therefore, as shown in FIG. 9, when the second blade 14 moves in the special control region S, more specifically, when the reference axis L enters the special control region S, the control unit 20 20 energizes the solenoid 19Bd of the second linear solenoid 19B of the actuator 18, pulls the first arm portion 17c via the connecting member 19b, and rotates the second blade 14 to turn the tip of the second blade 14; 14a is swung back in the moving direction toward the second blade 14, and the tip 14a is directed to the upper reversal position R2. That is, the time for the direction of the tip 14a of the second blade 14 to pass through the specific region 101 is extremely shortened.

  Further, by swinging the tip 14a backward in the movement direction of the second blade 14, the reaction force sliding on the window glass 100 or the like, that is, resistance is not easily generated compared with the case where the tip 14a is swung forward in the movement direction. Can be swung.

  Further, the cleaning liquid that flows and moves in the extending direction of the second blade 14 and scatters from the tip 14 a is prevented or suppressed from flowing into the specific region 101.

  When the reference axis L of the second blade 14 passes through the special control region S, the control unit 20 deenergizes the solenoid 19Bd of the second linear solenoid 19B of the actuator 18, and the second force is applied by the return spring 19Be. The blade 14 returns to a straight line.

  That is, when the second wiper blade 14 moves from the lower inversion position R1 to the upper inversion position R2 or from the upper inversion position R2 to the lower inversion position R1, the reference axis L of the second blade 14 passes through the specific region 101. During the movement, the tip 14a of the second blade 14 is controlled so as to be directed rearward in the moving direction of the second blade 14, thereby controlling the direction in which the cleaning liquid is pushed out and ejected from the second blade 14. Scattering of the cleaning liquid from the blade 14 to the specific area 101 at the center upper portion of the window glass 100 is prevented, and it is possible to effectively prevent the cleaning liquid from remaining in the specific area.

  In the above embodiment, the tip 14a of the second blade 14 is controlled so as to face the rear in the movement direction of the second blade 14, but it can also be controlled so as to face the front in the movement direction.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the actuator 18 is constituted by the first linear solenoid 19A and the second linear solenoid 19B. However, for example, as schematically shown in FIG. A cam 30 having a cam surface 31 having a cam crest 31a is provided in the vicinity, and a push rod 32 whose base end 32a is biased in the direction of the cam surface 31 by a push rod spring 34 is provided on the rotating arm 13. The push rod 32 is connected to the tip end region 14A of the blade 14 or a swing mechanism (not shown) that swings the blade 14 in conjunction with the reciprocating motion of the push rod 32. The tip region 14A of the blade 14 or the blade 14 may be rotated by the reciprocating motion of 32. Kill.

  Further, the actuator can be configured by a stepping motor or the like.

DESCRIPTION OF SYMBOLS 10 Vehicle wiper apparatus 11 Rotating arm 12 1st braid | blade 13 Rotating arm 14 2nd braid | blade 14a Tip 14A Tip area 16-1, 16-2 Camera (imaging device)
20 Control unit 16 Blade rubber 17 Holder 18 Actuator 100 Window glass 101 Specific area

Claims (6)

A blade attached to the tip of the rotating arm, the first blade including the central upper region of the vehicle window glass in the operating range, and the second blade having the lower region of the operating range of the first blade as the operating range And a blade drive unit that reciprocally moves the blades on the window glass in the operating ranges.
When the second blade passes and moves in the vicinity of the specific area specified in advance in the central upper area in the reciprocating area, the time for the tip of the second blade to pass through the specific area is shortened. A vehicle wiper device comprising a control unit for controlling the wiper. A blade attached to the tip of the rotating arm, the first blade including the central upper region of the vehicle window glass in the operating range, and the second blade having the lower region of the operating range of the first blade as the operating range And a blade drive unit that reciprocally moves the blades on the window glass in the operating ranges.
In the second blade, a reference axis that passes through the center of the second blade that is orthogonal to the rotation direction of the second blade is at least a specific region that is specified in advance in the central upper region in the reciprocating region. A wiper device for a vehicle, comprising: a control unit that controls the vehicle so as to face forward or backward in a moving direction of the reciprocating motion when passing. The second blade includes bending means for bending the entire blade around a tip region or a support shaft including the tip of the blade,
The control by the control unit is
3. The vehicle according to claim 2, wherein when the reference axis of the second blade moves in the specific region, the bending is controlled so that the tip is directed forward or backward in the reciprocating movement direction. Wiper device. The second blade is rotatably supported at the tip of the rotating arm,
The control by the control unit is
When the reference axis of the second blade moves in the specific region, the tip of the second blade is rotated so that the tip of the second blade faces forward or backward in the reciprocating movement direction. The vehicle wiper device according to claim 2, wherein control is performed.   5. The vehicle wiper device according to claim 2, wherein the second blade is controlled such that a tip thereof faces rearward in a reciprocating movement direction. 6.   The said specific area | region is an area | region corresponded to the field angle range of this imaging device in the vehicle which has an imaging device in the inner interior compartment of the said window glass, The any one of Claims 1-5 characterized by the above-mentioned. Vehicle wiper device.

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