JP2008168796A - Wiper system for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve wiping performance of a wiper system for a vehicle by restricting vibration of wiper blades. <P>SOLUTION: A rubber holder 26 is installed on a tip of a wiper arm 15 that is driven to oscillate by a wiper motor, and a cover 41 is rotatably connected to each end of the rubber holder 26. Holding parts 36 and 37 are respectively provided at both lengthwise end parts of the rubber holder 26, and a blade rubber 27 with a plate spring member is held by the rubber holders 26 at two points of the holding parts 36 and 37. A U-shaped support piece 52 provided with a top wall and a pair of side walls arranged in the wiping direction. A block type support piece 53 is provided at a lengthwise end part of the rubber holder 26. The support piece 53 is held between the side walls of the support piece 52 to prevent deflection of the rubber holder 26 in the wiping direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle wiper device that is provided in a vehicle such as an automobile and wipes the window glass of the vehicle.

  Vehicles such as passenger cars, buses, and trucks are provided with a wiper device to secure the driver's field of view by wiping rain, snow, and splashes from the front car on the windshield (windshield). Such a wiper device has a wiper arm and a wiper blade attached to the tip of the wiper arm, and the wiper arm swings when driven by a drive source such as a wiper motor mounted on the vehicle body. As the wiper blade, a so-called tournament type constructed by assembling a plurality of levers in a tournament type is often used, and the glass surface is wiped by swinging on the wind glass together with the wiper arm.

  In such a wiper device, the wiper blade is rotatably attached to the tip of the wiper arm at a connecting portion provided at a substantially intermediate portion in the longitudinal direction of the main lever. For this reason, when wiping resistance is applied to the blade rubber, both ends of the wiper blade are swung in the wiping direction centering on the connecting portion due to the wiping resistance, which may cause vibration of the wiper blade and lower wiping performance.

Therefore, for example, in the wiper device shown in Patent Document 1, a U-shaped support piece having a pair of side walls arranged in the wiping direction is attached to a wiper arm, and the longitudinal end of the main lever is sandwiched between the support pieces. The vibration of the wiper blade is suppressed.
JP 2006-137203 A

  However, in the conventional wiper device, the wiper blade has a structure in which a plurality of levers constituting the wiper blade are connected to each other by pins, so that when the wiping resistance is applied, the terminal sub-lever that directly holds the blade rubber is attached to the wiper arm. It will tilt slightly in the wiping direction with respect to the main lever. Therefore, even if the main lever is supported by the support piece attached to the wiper arm, there is a problem that the sub-lever at the end swings in the wiping direction with respect to the main lever and vibration of the wiper blade cannot be sufficiently suppressed.

  An object of the present invention is to improve wipeability of a vehicle wiper device by suppressing vibration of a wiper blade.

  A vehicle wiper device according to the present invention is a vehicle wiper device for wiping a window glass of a vehicle, and includes a wiper arm that is swingably driven by a drive source, a rubber holder that is attached to the tip of the wiper arm, and the rubber holder. A blade rubber that is held and contacts the window glass, a leaf spring member that is elastically deformed in a direction perpendicular to the glass surface, and that is attached to the blade rubber, a ceiling wall, and a pair of side walls. And a support piece attached to the wiper arm, and a support piece provided at a longitudinal end of the rubber holder and sandwiched between the side walls.

  The vehicle wiper device according to the present invention is characterized in that the support piece is formed separately from the rubber holder and attached to the rubber holder.

  In the vehicle wiper device according to the present invention, the support piece is formed integrally with the rubber holder.

  The vehicle wiper device according to the present invention is characterized in that a plurality of ribs extending in a direction perpendicular to the glass surface are provided on the inner surface of the side wall, and the support surface is in line contact with the rib.

  In the vehicle wiper device according to the present invention, the support piece is fixed to the wiper arm by a screw member screwed to the wiper arm from the inner surface side of the top wall.

  The wiper device for a vehicle according to the present invention is characterized in that a fin is provided on the rubber holder.

  A vehicle wiper device according to the present invention is a vehicle wiper device for wiping a window glass of a vehicle, and includes a wiper arm that is swingably driven by a drive source, a rubber holder that is attached to the tip of the wiper arm, and the rubber holder. A blade rubber that is held and contacts the window glass, a leaf spring member that is elastically deformed in a direction perpendicular to the glass surface, and that is attached to the blade rubber, and is rotatable at both ends of the rubber holder. A support piece which is connected to the wiper arm and is formed in a U-shape having a pair of covers that cover the tip side of the blade rubber, a top wall and a pair of side walls, and a longitudinal end of the rubber holder Or a support piece that is sandwiched between the side walls. And wherein the door.

  According to the present invention, the support piece is provided at the longitudinal end of the rubber holder that directly holds the blade rubber, and the support piece is sandwiched by the support piece attached to the wiper arm so that the rubber holder can be swung in the wiping direction due to the wiping resistance of the rubber holder. Since it suppressed, the vibration of the wiper blade at the time of wiping operation | movement can be suppressed effectively. Thereby, the wiping property of this vehicle wiper device can be improved.

  According to the present invention, the support piece provided in the rubber holder can be formed separately from the rubber holder, and can also be formed integrally with the rubber holder.

  According to the present invention, the plurality of ribs extending in the direction perpendicular to the glass surface are provided on the inner surface of the side wall of the support piece, and the support surface of the support piece is in line contact with these ribs. The movement can be smoothed. Thereby, the followability to the glass surface of a wiper blade is improved, and the wiping property of this wiper device for vehicles is improved.

  According to the present invention, since the support piece is fixed to the wiper arm by the screw member screwed to the wiper arm from the inner surface side of the top wall, the screw member is not exposed to the outside of the wiper arm. Aesthetics can be improved.

  According to the present invention, since the fin is provided in the rubber holder, it is possible to suppress the wiper blade from being lifted from the glass surface by the traveling wind.

  According to the present invention, the support piece is provided on at least one of the longitudinal end portion of the rubber holder or the base end portion of the cover that is rotatably connected to the rubber holder and covers the distal end side of the blade rubber. Is supported by a support piece attached to the wiper arm so as to suppress the vibration in the wiping direction due to the wiping resistance of the rubber holder or the cover, so that the vibration of the wiper blade during the wiping operation can be effectively suppressed. Thereby, the wiping property of this vehicle wiper device can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a front view schematically showing a vehicle wiper device according to an embodiment of the present invention. This vehicle wiper device 11 (hereinafter referred to as a wiper device 11) is a windshield (window) of a vehicle 12. The glass is mounted on the vehicle body 14 at a lower portion of the glass 13 and wipes the windshield 13.

  The wiper device 11 is a so-called tandem type equipped with two wiper arms 15 on the driver side and the passenger side, and a pair of wiper shafts 16 are rotatably supported on the vehicle body 14. Are fixed to the corresponding wiper shafts 16. A wiper blade 17 is attached to each end of the wiper arm 15, and these wiper blades 17 are pressed against the windshield 13 by a spring force of a spring (not shown) built in the wiper arm 15. Each wiper shaft 16 is connected to a wiper motor 19 as a drive source via a link mechanism 18 and is driven by the wiper motor 19 to swing within a predetermined angle range. Thus, when the wiper motor 19 is operated, each wiper arm 15 together with the wiper shaft 16 is driven to swing by the wiper motor 19. Is wiped out.

  2 is a perspective view showing details of the wiper arm and the wiper blade attached to the wiper arm. FIG. 3 is a perspective view showing a state where the wiper blade is removed from the wiper arm. FIGS. 4 (a) and 4 (b) are respectively views. It is explanatory drawing which shows the detail of the holding | maintenance part provided in a rubber holder.

  As shown in FIGS. 2 and 3, the wiper arm 15 has an aluminum die-cast arm head 21, and the wiper arm 15 is fixed to the wiper shaft 16 by a nut (not shown) in the arm head 21. A retainer 23 is connected to the arm head 21 so as to be rotatable about a connecting shaft 22 in a direction approaching and separating from the glass surface of the windshield 13. The retainer 23 is formed in a U-shaped arm shape by a steel plate or the like, and is urged toward the glass surface around the connecting shaft 22 by the above-described spring (not shown) mounted therein. . A metal rod-like stay 24 is attached to the tip of the retainer 23, and a hook portion 25 that bends in a U-shape is provided at the tip of the stay 24 as shown in FIG. .

  On the other hand, the wiper blade 17 has a rubber holder 26 and a blade rubber 27 that is in direct contact with the windshield 13. The rubber holder 26 is made of a resin material in a bar shape having a substantially U-shaped cross section (see FIGS. 4 and 5). It is formed, and its longitudinal dimension is about half of the blade rubber 27. Further, a connecting portion 28 is provided at a substantially intermediate portion in the longitudinal direction of the rubber holder 26, and a connecting shaft (not shown) provided in the connecting portion 28 is engaged with a hook portion 25 provided at the tip end portion of the stay 24. By doing so, the rubber holder 26 is rotatably attached to the tip of the wiper arm 15. As described above, in the wiper device 11, the connection structure between the wiper arm 15 and the wiper blade 17 is a hook type, but is not limited thereto, and may be another structure such as a clip type.

  As shown in FIG. 4, the blade rubber 27 is made of natural rubber or synthetic rubber as a material and is formed in a bar shape having a uniform cross section in the longitudinal direction and having a head section 31, a lip section 32 and a neck section 33 having a rectangular section. The lip portion 32 contacts the windshield 13. The neck portion 33 is formed with a narrow width in the wiping direction with respect to the head portion 31 and the lip portion 32, whereby the lip portion 32 can be tilted in the wiping direction with respect to the head portion 31.

  Mounting grooves 34 are formed on both side surfaces of the head portion 31 so as to extend in the longitudinal direction, and leaf spring members 35 are mounted on the mounting grooves 34, respectively. The plate spring member 35 is formed into a flat plate shape having a length similar to that of the blade rubber 27 by punching a plate material such as a steel plate, and is elastically deformable in a direction perpendicular to the glass surface of the windshield 13. Moreover, in the natural state, it is curved more strongly than the curvature of the windshield 13 toward the elastically deformable direction. Thereby, the blade rubber 27 to which the leaf spring member 35 is mounted is elastically deformable in a direction perpendicular to the windshield 13 integrally with the leaf spring member 35, that is, a direction in which the degree of curvature thereof is changed. In a state away from the windshield 13, it is curved more strongly than the windshield 13.

  In the present embodiment, the leaf spring member 35 is formed of a steel plate. However, the present invention is not limited to this, and other materials such as a hard resin material may be used as long as the material can generate a predetermined elasticity. You may make it form.

  As shown in FIG. 4, in order to hold the blade rubber 27 on the rubber holder 26, holding portions 36 and 37 are provided at both ends in the longitudinal direction of the rubber holder 26, respectively, and the blade rubber 27 has both sides in the wiping direction. A pair of holding grooves 38 that open in the longitudinal direction and extend in the longitudinal direction are provided.

  As shown in FIG. 4A, the holding portion 36 provided on one end side in the longitudinal direction of the rubber holder 26 (side closer to the wiper shaft 16 when the wiper blade 17 is attached to the wiper arm 15) is a pair of holding claws 36a. (Only one side is shown in the figure, but the other side is provided with similar holding claws.) These holding claws 36a are rectangular in cross section protruding from the inner surface of the side wall of the rubber holder 26 along the wiping direction. The blade rubber 27 is held by engaging with the corresponding holding grooves 38. The blade rubber 27 is provided with a pair of stopper portions 39a and 39b that sandwich the holding claws 36a from the longitudinal direction, and the holding claws 36a extend along the holding grooves 38 with respect to the blade rubber 27 by the stopper portions 39a and 39b. Movement in the direction is restricted. That is, the blade rubber 27 is held by the rubber holder 26 in a state where the holding portion 36 is positioned in the longitudinal direction.

  As shown in FIG. 4B, the holding portion 37 provided on the other end side in the longitudinal direction of the rubber holder 26 has a pair of holding claws 37a each having a rectangular cross section (although only one side is shown in the figure). On the other side, similar holding claws are provided.) These holding claws 37a engage with the corresponding holding grooves 38, thereby holding the blade rubber 27. The blade rubber 27 is not provided with a stopper portion at a portion where the holding claw 37 a is engaged, and the holding claw 37 a is movable in the longitudinal direction along the holding groove 38. That is, the blade rubber 27 is held in the holding portion 37 so as to be movable in the axial direction with respect to the rubber holder 26.

  As described above, in the wiper blade 17, the holding portions 36 and 37 are provided at both ends in the longitudinal direction of the rubber holder 26, and the blade rubber 27 is held at two points of the holding portions 36 and 37. . Therefore, when the pressing force from the wiper arm 15 is applied to the rubber holder 26 via the connecting portion 28, the pressing force is applied to the blade rubber 27 from two points at both ends of the rubber holder 26, that is, from the holding portions 36 and 37. As a result, the blade rubber 27 is elastically brought into contact with the windshield 13.

  Covers 41 are respectively connected to both ends of the rubber holder 26, and the tip side portion of the blade rubber 27 protruding in the longitudinal direction from the rubber holder 26 is covered with these covers 41. FIG. 5 is a perspective view showing a connection structure between the rubber holder and the cover. A cover plate 42 is provided at the base end of the cover 41, and a connection piece 43 is provided at the end of the rubber holder 26. When the connecting plate 42 is engaged with the connecting piece 43, the cover 41 is connected to the rubber holder 26 so as to be rotatable in a direction approaching and moving away from the glass surface with the connecting piece 43 as a center.

  As shown in FIGS. 2 and 3, fins 44 are integrally formed on the rubber holder 26, and fins 45 aligned in the longitudinal direction with respect to the fins 44 of the rubber holder 26 are also formed on each cover 41. The aerodynamic characteristics of the wiper blade 17 are improved by the fins 44 and 45.

  As described above, in the wiper device 11, since the fins 44 and 45 are provided on the rubber holder 26 and the cover 41, it is possible to suppress the wiper blade 17 from being lifted from the glass surface by the traveling wind.

  FIGS. 6A to 6D are explanatory views showing changes in the shape of the blade rubber when the wiper blade is in contact with the windshield. The blade rubber 27 of the wiper blade 17 is in a natural state, that is, on the windshield 13. When not in contact, as shown in FIG. 6A, the front glass 13 is curved toward the glass surface with a curvature larger than the maximum curvature in the wiping range of the windshield 13. When the wiper blade 17 is set on the windshield 13 from this state, both end portions of the blade rubber 27 in the longitudinal direction first come into contact with the glass surface. When the pressing force of the wiper arm 15 (indicated by an arrow in the figure) is applied to the blade rubber 27 via the rubber holder 26 in a state where both ends of the blade rubber 27 are in contact with the glass surface, as shown in FIG. The blade rubber 27 is deformed into an M shape so that the central portion in the longitudinal direction contacts the glass surface. At this time, since the blade rubber 27 is restricted from moving in the axial direction with respect to the rubber holder 26 in the holding portion 36 and is allowed to move in the axial direction in the holding portion 37, the pressing force from the wiper arm 15 increases. Accordingly, the blade rubber 27 can be deformed along the glass surface. Then, as shown in FIG. 6C, the blade rubber 27 is gradually deformed so as to be along the glass surface. When the blade rubber 27 is completely set on the glass surface, as shown in FIG. The wiping posture is such that the entire longitudinal direction comes into contact with the glass surface by the pressing force from 15. At this time, since the leaf spring member 35 is also elastically deformed along the glass surface in the same manner as the blade rubber 27, the pressing force of the wiper arm 15 applied to the rubber holder 26 via the connecting portion 28 is elastically deformed of the leaf spring member 35. The blade rubber 27 is dispersed in the longitudinal direction of the blade rubber 27, and the blade rubber 27 contacts the windshield 13 with a uniform distributed pressure in the longitudinal direction. As a result, the blade rubber 27 can be wiped in a state where the entire lengthwise direction is uniformly in contact with the windshield 13, and good wiping performance can be exhibited. Further, since the cover 41 is rotatably connected to the rubber holder 26, even if the blade rubber 27 is deformed following the glass surface, the deformation is not restricted by the cover 41.

  As shown in FIG. 2, the wiper device 11 is provided with a stabilizer 51 in order to prevent the wiper blade 17 from swinging in the wiping direction and improve its wiping performance. As shown in FIG. 3, the stabilizer 51 has a support piece 52 attached to the wiper arm 15 and a support piece 53 provided on the rubber holder 26, and has a structure in which the support piece 53 is supported by the support piece 52.

  7 is a perspective view showing details of the support piece and the support piece shown in FIG. 3, FIG. 8 is a cross-sectional view taken along line AA shown in FIG. 2, and FIG. 9 is a cross-sectional view taken along line BB shown in FIG. FIG. Below, the detail of a stabilizer is demonstrated based on FIGS.

  As shown in FIGS. 7 and 8, the support piece 52 includes a top wall 52 a arranged in parallel to the glass surface and a pair of side walls 52 b arranged in the wiping direction, and these are formed in an integrated U-shape. It has become. The support piece 52 is arranged with its U-shaped opening side facing the glass surface, and the top wall 52 a is fitted inside the retainer 23 and is placed on the stay 24. A mounting hole 54 is provided in the ceiling wall 52 a, and a screw member 55 (bolt) is inserted into the mounting hole 54 from the inner surface side of the ceiling wall 52 a, that is, the glass surface side. The screw hole 56 is screwed. Thereby, the support piece 52 is fixed to the stay 24, that is, the wiper arm 15 by the screw member 55.

  As described above, in the wiper device 11, since the support piece 52 is fixed to the wiper arm 15 by the screw member 55 that is screw-coupled to the wiper arm 15 from the inner surface side of the top wall 52 a, the screw member 55 is placed outside the wiper arm 15. The aesthetic appearance of the wiper device 11 can be improved without being exposed.

  As shown in FIGS. 7 to 9, three ribs 57 projecting from the inner surface in the wiping direction and extending linearly in a direction perpendicular to the glass surface are integrally formed on the inner surface of each side wall 52 b of the support piece 52. Is formed.

  On the other hand, the support piece 53 is formed in a block shape separately from the rubber holder 26 by a resin material, and is disposed outside the rubber holder 26 and has a lower end (end on the glass surface side) as shown in FIG. The pair of engaging claws 58 provided on the rubber holder 26 is engaged with the end surface of the rubber holder 26 on the glass surface side, and is attached to the end portion in the longitudinal direction of the rubber holder 26 near the wiper shaft 16. Each surface facing the wiping direction of the support piece 53 is a support surface 53a parallel to the side wall 52b of the support piece 52, and the interval in the wiping direction of each support surface 53a is the same as the interval between the side walls 52b of the support piece 52. It is almost the same.

  When the wiper blade 17 is attached to the wiper arm 15, as shown in FIGS. 2 and 8, the support piece 52 engages with the support piece 53 from a direction perpendicular to the glass surface, and the support piece 53 is connected to each side wall of the support piece 52. 52b. Accordingly, the support piece 53 is supported in a state in which movement in the wiping direction with respect to the wiper arm 15 is restricted by the support piece 52 fixed to the wiper arm 15. Accordingly, the rubber holder 26 to which the support piece 53 is fixed is supported by the wiper arm 15 at two points of the connection portion 28 and the support piece 53, and the rubber holder 26 tends to swing in the wiping direction around the connection portion 28. However, the operation is supported by the support piece 52 via the support piece 53, and the swing of the rubber holder 26 with respect to the wiper arm 15 in the wiping direction is suppressed.

  As described above, in the wiper device 11, the support piece 53 is provided at the longitudinal end of the rubber holder 26 that directly holds the blade rubber 27, and the support piece 53 is sandwiched between the support pieces 52 attached to the wiper arm 15. Therefore, the shake in the wiping direction due to the wiping resistance of the rubber holder 26 can be suppressed. Therefore, when the wiper device 11 is operated and the wiping operation is performed, the vibration of the wiper blade 17 can be effectively suppressed, and thereby the wiping property of the wiper device 11 can be improved.

  As shown in FIG. 9, when the support piece 53 is sandwiched between the side walls 52b of the support piece 52, the support surface 53a of the support piece 53 is in line contact with the ribs 57 provided on the side walls 52b. When the blade 17 rotates about the connecting portion 28 with respect to the wiper arm 15, each support surface 53 a slides along the rib 57. Therefore, the operation when the wiper blade 17 rotates about the connecting portion 28 becomes smooth.

  As described above, in the wiper device 11, the plurality of ribs 57 extending in the direction perpendicular to the glass surface are provided on the inner surface of the side wall 52 b of the support piece 52, and the support surface 53 a of the support piece 53 is brought into line contact with these ribs 57. Since it did in this way, the sliding resistance of the support piece 53 and the support piece 52 can be reduced. Thereby, the followable | trackability to the glass surface of the wiper blade 17 can be improved, and the wiping property of this wiper apparatus 11 can be improved.

  FIGS. 10A to 10C are perspective views showing modifications of the stabilizer shown in FIG.

  In the stabilizer 51 shown in FIG. 7, the support piece 53 is formed separately from the rubber holder 26 and is attached to the end in the longitudinal direction of the rubber holder 26. ), The support piece 53 may be formed integrally with the rubber holder 26 at the end in the longitudinal direction of the rubber holder 26. In this case, the support piece 53 can be formed integrally with the rubber holder 26 by injection molding of a resin material or the like.

  Further, in the stabilizer 51 shown in FIG. 7, the support piece 53 is provided at the longitudinal end portion of the rubber holder 26, but the support piece 53 is not limited thereto, and the support piece 53 includes the longitudinal end portion of the rubber holder 26 and the cover 41. What is necessary is just to be provided in at least any one of these base end parts. That is, as shown in FIG. 10B, the support piece 53 may be provided at the base end portion of the cover 41 on the side close to the wiper shaft 16 (the side positioned below the wiper arm 15). As shown in c), support pieces 53 may be provided on both the longitudinal end of the rubber holder 26 and the base end of the cover 41 on the side close to the wiper shaft 16. In the case shown in FIG. 10 (c), the support piece 52 attached to the wiper arm 15 has long side walls 52 b along the wiper blade 17 in order to support both support pieces 53 simultaneously.

  In FIG. 10, members corresponding to the members described above are given the same reference numerals.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the above-described embodiment, the wiper blade 17 wipes the windshield 13 of the vehicle 12, but is not limited thereto, and may wipe the rear window glass of the vehicle 12. .

  In the embodiment, the present invention is applied to the wiper blade 17 in which the cover 41 is connected to both ends of the rubber holder 26. However, the present invention is not limited to this, and the wiper blade is not provided with these covers 41. The present invention may be applied to.

  Furthermore, in the said embodiment, although the wiper apparatus 11 is a tandem type, you may apply this invention to other types of wiper apparatuses, such as not only this but a counter wiping type.

It is a front view showing the outline of the wiper device for vehicles which is one embodiment of the present invention. It is a perspective view which shows the detail of a wiper arm and the wiper blade attached to this. It is a perspective view which shows the state which removed the wiper blade from the wiper arm. (A), (b) is explanatory drawing which shows the detail of the holding | maintenance part provided in a rubber holder, respectively. It is a perspective view which shows the connection structure of a rubber holder and a cover. (A)-(d) is explanatory drawing which shows the change of the shape of a blade rubber when a wiper blade contacts a windshield, respectively. It is a perspective view which shows the detail of the support piece and support piece which are shown in FIG. It is sectional drawing which follows the AA line shown in FIG. It is sectional drawing which follows the BB line shown in FIG. (A)-(c) is a perspective view which shows the modification of the stabilizer shown in FIG. 7, respectively.

Explanation of symbols

11 Vehicle Wiper Device 12 Vehicle 13 Windshield (Wind Glass)
14 Car body 15 Wiper arm 16 Wiper shaft 17 Wiper blade 18 Link mechanism 19 Wiper motor (drive source)
21 arm head 22 connecting shaft 23 retainer 24 stay 25 hook portion 26 rubber holder 27 blade rubber 28 connecting portion 31 head portion 32 lip portion 33 neck portion 34 mounting groove 35 leaf spring member 36, 37 holding portion 36a, 37a holding claw 38 holding Groove 39a, 39b Stopper part 41 Cover 42 Connecting plate 43 Connecting piece 44, 45 Fin 51 Stabilizer 52 Supporting piece 52a Top wall 52b Side wall 53 Supporting piece 53a Supporting surface 54 Mounting hole 55 Screw member 56 Screw hole 57 Rib 58 Engagement claw

Claims (7)

A vehicle wiper device for wiping a vehicle windshield,
A wiper arm swingably driven by a drive source;
A rubber holder attached to the tip of the wiper arm;
A blade rubber held by the rubber holder and in contact with the window glass;
A leaf spring member that is elastically deformable in a direction perpendicular to the glass surface and is attached to the blade rubber;
A support piece that is formed in a U shape with a top wall and a pair of side walls, and is attached to the wiper arm;
A vehicle wiper device comprising: a support piece provided at an end portion in the longitudinal direction of the rubber holder and sandwiched between the side walls.   2. The vehicle wiper device according to claim 1, wherein the support piece is formed separately from the rubber holder and is attached to the rubber holder.   2. The vehicle wiper device according to claim 1, wherein the support piece is formed integrally with the rubber holder.   4. The vehicle wiper device according to claim 1, wherein a plurality of ribs extending in a direction perpendicular to the glass surface are provided on an inner surface of the side wall, and the support surface is in line contact with the rib. A vehicle wiper device.   5. The vehicle wiper device according to claim 1, wherein the support piece is fixed to the wiper arm by a screw member screwed to the wiper arm from an inner surface side of the top wall. A wiper device for a vehicle.   The vehicle wiper device according to any one of claims 1 to 5, wherein a fin is provided on the rubber holder. A vehicle wiper device for wiping a vehicle windshield,
A wiper arm swingably driven by a drive source;
A rubber holder attached to the tip of the wiper arm;
A blade rubber held by the rubber holder and in contact with the window glass;
A leaf spring member that is elastically deformable in a direction perpendicular to the glass surface and is attached to the blade rubber;
A pair of covers that are rotatably connected to both ends of the rubber holder, respectively, and cover the tip side of the blade rubber;
A support piece that is formed in a U shape with a top wall and a pair of side walls, and is attached to the wiper arm;
A vehicle wiper device comprising: a support piece provided at at least one of a longitudinal end portion of the rubber holder and a base end portion of the cover and sandwiched between the side walls.

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