JP2002331915A - Oppositely sweeping type wiper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a frontal view of a vehicle having an oppositely sweeping type wiper device. SOLUTION: A storage space 11 positioned inside a bonnet 12 is provided with a mold 14 having a recessed part 13 formed on a track of a wiper blade 2b in an AS side and a guide member 15 positioned on a track of a wiper arm 1a in a DR side and formed in approximately parallel to a windshield 3. The tracks of the wiper blade 2a in the DR side and the wiper blade 2b in the AS side are guided in an overlapping direction relative to a car body and the respective wiper blades 2a and 2b are stored inside the bonnet 12 with their crossed state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opposed wiping type wiper device for a vehicle.

[0002]

2. Description of the Related Art Wiper devices for vehicles are mainly used for windshield glass, that is, rain, fog,
It wipes off deposits such as snow and splashes from a front vehicle, and has a wiper blade that directly contacts the windshield and a wiper arm to which the wiper blade is attached.

[0003] Wiping patterns of a wiper device having a plurality of wiper blades include a tandem type and an opposing wiping type. In recent years, the wiping area has increased due to an increase in the size of a windshield, and the lateral visibility has been reduced. In order to cope with the improvement, an opposite wiping type wiper device has been used. In the opposed wiping type wiper device, the swing centers of the wiper arms are arranged on the left and right sides of the vehicle body, and each wiper blade swings between the upper inverted position of the left and right portions of the windshield and the lower inverted position of the center lower side. It is also called an overlap type because it moves in a dynamic manner and two wiper blades are arranged vertically close to each other in a state of being in contact with the windshield at the lower turning position.

When the opposite wiping type wiper device is set to the rest state, the respective wiper blades are set in a vertically lower state at the lower center of the windshield, so that the upper wiper blade is particularly viewed from the vehicle interior side. When it comes into view, you may feel annoying. Therefore, in order to improve the front view when the wiper is at rest, there is a rise-up mechanism that moves the wiper blade from the normal wiper rest position to the retracted position inside the bonnet at the time of the wiper rest, and Japanese Patent Publication No. As disclosed in Japanese Patent No. 18771, there has been developed a type in which the lower turning position of the wiper blade is set inside the bonnet so that the wiper blade is located inside the bonnet when the wiper is stopped.

[0005]

However, in such an opposing wiping-type wiper device, if a position where two wiper blades are arranged vertically adjacent to each other in contact with the windshield is defined as a lower inversion position, Below the position, the respective wiper blades will interfere with each other. Therefore, the storage position cannot be provided below the lower turning position. In addition, if the position where the two wiper blades are arranged vertically adjacent to each other is set as the storage position and the lower turning position is provided above the storage position, the wiping range itself of the wiper blade effective for securing the front view can be reduced. Become. Therefore, even if the wiper blade is stored inside the hood, it is difficult to sufficiently improve the front view of the vehicle. Although the interior space between the windshield where the wiper blades are stored and the hood is relatively large, the entrance portion has recently been narrowed from the viewpoint of vehicle design. There is also a problem that the blade floating type storage mechanism cannot be adopted.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the front view of a vehicle having an opposing wiping device.

[0007]

An opposed wiping type wiper device according to the present invention has a first wiper arm and a second wiper arm each having a swing center on each of right and left sides of a vehicle body, and is attached to each of the wiper arms. The first wiper blade and the second wiper blade are oscillatingly moved between an upper inversion position on both left and right portions of the windshield glass and a lower inversion position on the center lower side of the windshield glass. A wiper device, comprising: a driving means for oscillating the respective wiper arms and moving the respective wiper arms to a storage position below the lower inversion position when the wiper is at a standstill; and It is characterized in that the wiper blades are stored crossing each other.

[0008] The opposed wiping type wiper device according to the present invention is characterized in that it has a track guiding means for guiding the track of each of the wiper blades in a direction in which the respective wiper blades overlap the vehicle body.

In the opposed wiping type wiper device according to the present invention, the trajectory guiding means may be the first wiper arm or the second wiper arm.
A guide member for guiding the trajectory of any one of the wiper arms along an extension in a direction along the windshield glass surface, and a body panel having a concave portion for moving the trajectory of the other wiper arm in a direction approaching the vehicle body. It is characterized by the following.

[0010] In the opposed wiping type wiper device according to the present invention, the trajectory guide means may include the first wiper arm or the second wiper arm.
And a guide member for moving the trajectory of one of the wiper arms toward the outside of the vehicle body.

According to the present invention, the first wiper arm and the second wiper arm are guided by the track guide means in a direction overlapping with the vehicle body, and are stored in the hood with the respective wiper blades crossing each other. Since the storage position of the wiper blade can be secured without narrowing the wiping range of the wiper blade, the front view of the vehicle having the opposed wiping type wiper device can be improved.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an explanatory view schematically showing an opposed wiping type wiper device according to an embodiment of the present invention. As shown in FIG. 1, the opposed wiping type wiper device operates as a first wiper arm. It has a wiper arm 1a on the seat side, that is, the DR side, and a wiper arm 1b on the passenger seat side, that is, the AS side as a second wiper arm. A driver's seat side as a first wiper blade, that is, a DR-side wiper blade 2a is attached to the DR-side wiper arm 1a.
The wiper arm 1b on the S side is provided with a wiper blade 2b on the passenger seat side, that is, an AS side, as a second wiper blade. Each wiper blade 2a, 2b
Is a windshield 3 as a windshield glass by a spring member or the like (not shown) provided inside the wiper arm.
Are resiliently contacted.

Wiper shafts 4a and 4b are provided on both right and left sides of the vehicle body.
Are provided, and the respective wiper arms 1a, 1b
Is attached to the wiper shafts 4a, 4b at its base end.

In order to swing the wiper arm 1a on the DR side, a drive mechanism 7a on the DR side as a drive means having a motor 5a and a speed reducer 6a is mounted on the vehicle body and swings the wiper arm 1b on the AS side. As a result, an AS-side drive mechanism 7b as a drive unit including a motor 5b and a speed reducer 6b
Is mounted on the vehicle body. Each reduction gear 6a, 6b
Is mechanically connected to the wiper shafts 4a and 4b, and the rotational force of the motors 5a and 5b is transmitted to the respective wiper shafts 4a and 4b via the speed reducers 6a and 6b. . Therefore, each wiper blade 2a,
The drive mechanism 7b is oscillated between the upper reversal position and the lower reversal position at the center lower side by the driving mechanisms 7a and 7b.

The drive mechanisms 7a and 7b are electrically connected to wiper control devices 8a and 8b in which a central processing unit and a memory are incorporated. The wiper control devices 8a and 8b are connected to the respective drive mechanisms 7a and 7b. , From a battery (not shown). Also, the motor 5
a and 5b are provided with rotation sensors 9a and 9b for detecting the rotation angle of the motor.
a, 9b are detected by respective wiper control devices 8a, 8a,
8b.

When the wiper switch is turned on, electric power is supplied to the wiper control devices 8a and 8b to operate the motors 5a and 5b, and the wiper blades 2a and 2b respectively move the upper and lower reversing positions shown by dashed lines in FIG. Swinging movement of the wiping ranges 3a and 3b between the first and second wiping areas 3a and 3b to wipe off rain, snow and the like attached to the windshield 3.

The oscillating motion of the wiper blades 2a, 2b is
The rotation is performed by switching between forward rotation and reverse rotation of the motors 5a and 5b. The wiper controllers 8a and 8b control the rotation of the motors 5a and 5b based on the detection signals from the rotation sensors 9a and 9b at the upper and lower reversing positions. The direction of rotation is controlled. The respective wiper control devices 8a and 8b are connected to each other by a drive signal line 10 so that the wiper blades 2a and 2b perform a wiping operation without interfering with each other while monitoring the rotation angles of the respective motors 5a and 5b. It has become.

In the opposing wiping pattern, the wiper blades 2a and 2b are arranged vertically close to each other in contact with the windshield at the lower reversing position. The wiper blade 2a is arranged above the AS-side wiper blade 2b. This is because each wiper blade 2a, 2b
Does not remain on the DR side at the end of one cycle of wiping since the leading wiper blade forms an arc-shaped wiping mark in the opposite view area when heading toward the lower inversion position in the wiping return path. So that
In the wiping return path, the preceding wiper blade is set to the AS side,
This is set so that the DR-side wiper blade 2a follows the DR-side so that the DR-side field of view is secured. When each of the wiper blades 2a and 2b reaches the lower turning position, D
After the wiping by the wiper blade 2a on the R side, it is located in the view area on the AS side, and the view area on the DR side is effectively secured.

FIG. 2 is an explanatory view schematically showing a state in which the wiper blade is stored in the opposed wiping type wiper device shown in FIG. 1. FIG. 3 is a sectional view of the opposed wiping type wiper device shown in FIG. It is sectional drawing which shows I section.

Normally, when the opposing wiping type wiper device is in a resting state, the respective wiper blades are fixed in a state of being arranged vertically adjacent to each other at the lower center of the windshield in contact with the windshield. In particular, there is a case where the upper wiper blade enters the field of view when viewed from the inside of the vehicle compartment, and is troublesome. Therefore, when the wiper is at rest, the opposed wiping type wiper device has the wiper blade 2.
a and 2b are moved to the storage position located below the lower inversion position. This storage position is shown in FIG.
The inside of the hood 12 is indicated by a two-dot chain line, and the front view of the vehicle is improved by storing the wiper blades 2a and 2b.

As shown in FIG. 3, between the lower part of the windshield 3 and the bonnet 12, each wiper blade 2a,
2b is formed, and a molding 14 having a concave portion 13 as a track guiding means is provided on the windshield 3.
It is attached to the lower end. The storage space 11
Is set to a gap through which one wiper blade can pass. The recess 13
It is formed on the track of the wiper blade 2b on the S side,
The shape is gently curved toward the inside of the vehicle body with respect to the extension of the windshield 3.

The guide member 1 for floating the wiper blade as a track guide means is provided on the molding 14.
The guide surface 15a of the guide member 15 is substantially parallel to the windshield 3 and has a D
It is located on the track of the wiper arm 1a on the R side.

Then, when a wiper switch (not shown) is turned off, the wiper blades 2a and 2b pass through the lower inversion position, and are respectively stored at the storage positions A and 2 along the orbits indicated by dotted lines in FIG.
B will be moved. This operation is performed by changing the rotation angles of the motors 5a and 5b driven by the wiper control devices 8a and 8b.

The wiper blade 2a on the DR side floats from the surface of the windshield 3 with the wiper arm 1a supported by the guide surface 15a, and is guided along an extension in the direction along the surface of the windshield 3, and is shown in FIG. Moves to the storage position A of the wiper blade on the DR side shown in FIG. At this time, the wiper arm 1a comes into contact with a stopper 15b provided on the guide surface 15a and is stopped at a predetermined position, so that overrun is prevented.
Here, the vibration of the wiper blade 2a may be suppressed by sandwiching the guide member 15 between the wiper arm 1a and the wiper blade 2a.

On the other hand, the wiper blade 2 on the AS side
b is the AS side shown in the figure while moving the track from the lower inversion position located at the lower end of the windshield 3 along the slope formed in the recess 13 formed in the molding 14 so as to gradually approach the vehicle body. Storage position B of the wiper blade
Will move up to. Note that a stopper 16 indicated by a dashed line in the figure may be attached to the storage position B to prevent the overrun of the wiper blade 2b.

Therefore, each wiper blade 2a,
2b crosses the vehicle body in an overlapping state as shown in FIGS. As described above, by intersecting the respective wiper blades 2a and 2b, the operating range of the wiper blades 2a and 2b is changed to the wiping ranges 3a and 3b.
b is added to the range obtained by adding the movement amount to the storage space 11, so that the wiper blades 2a and 2b are positioned below the position where the wiper blades 2a and 2b are vertically arranged without narrowing the wiping range of the wiper blades 2a and 2b. Can be stored. Therefore, the front view of the vehicle having the opposed wiping device can be improved.

The respective wiper blades 2a, 2a
Since b is stored in the internal space of the hood 12 and is not visible from the outside, the design of the vehicle can be improved.

FIG. 4 is a sectional view showing a modification of the opposed wiping type wiper device shown in FIG. 3, and shows a wiper arm 1a on the DR side.
Is moved toward the outside of the vehicle body.

In the modification shown in FIG.
The molding 17 attached to the lower end of the front glass 3 is formed substantially parallel to the extension surface of the windshield 3.

The mall 17 has a tip 18a located on the track of the wiper arm 1a on the DR side and a tip 18a.
A guide member 18 for floating the wiper blade is attached as a track guide means having a guide surface 18b that is smoothly curved from a to the outside of the vehicle body. Therefore, when the wiper switch (not shown) is turned off,
When the wiper arm 1a is guided by the guide surface 18b, the wiper blade 2a on the DR side moves to the outside of the vehicle body and moves to the storage position A of the wiper blade on the DR side shown in the drawing. become. At this time, the wiper arm 1a comes into contact with a stopper 18c provided on the guide surface 18b and is stopped at a predetermined position, so that overrun is prevented.

On the other hand, the AS-side wiper blade 2
b moves on the mall 17 along the surface of the windshield 3 to the storage position B of the wiper blade on the AS side shown in the figure. Therefore, the respective wiper blades can intersect with the vehicle body in an overlapping state as shown in FIGS.

FIG. 5 is an explanatory view schematically showing an opposite wiping type wiper device according to another embodiment of the present invention.
(A), (b), (c) is the top view, front view, and side view which show the detail of the wiper blade of AS side shown in FIG. 5, respectively. FIG. 7 is a cross-sectional view showing the trajectory of the wiper blade on the DR side with respect to the lifter shown in FIG. 5, and FIG. 8 is a perspective view showing a state where the wiper blade is stored in the opposed wiping type wiper device shown in FIG. It is. In addition,
In FIGS. 5 to 8, members corresponding to those described above are denoted by the same reference numerals.

The opposed wiping type wiper device shown in FIG.
Similarly to the wiper device shown in FIG.
a and the wiper blade 2b on the AS side
By means of b, the front glass 3 is oscillated between the upper reversing position on both left and right sides and the lower reversing position on the center lower side. Then, when a wiper switch (not shown) is turned off, the wiper blades 2a and 2b are moved to the storage positions A and B shown by dotted lines in the figure, respectively, passing through the lower inversion positions. The molding 20 attached to the lower end of the windshield 3 is formed substantially parallel to the extension surface of the windshield 3 as in the case shown in FIG.

As shown in detail in FIGS. 6A, 6B and 6C, the wiper blade 2b on the AS side has a blade rubber 21 directly in contact with the windshield 3.
The first and second yokes 23a and 23b, which support the pair of first yokes in a swingable manner, and the second yokes 23a and 23b, which support the pair of first yokes in a swingable manner, and the AS side. Is a tournament type having a third yoke 24 provided with a mounting portion 24a for the wiper arm 1b. And this AS
A lifter 25 as a track guiding means is attached to the wiper blade 2b on the side.

The lifter 25 has a mounting surface 25a and an inclined surface 25b, and is fixed to a substantially central portion of the second yoke 23a on the mounting surface 25a, which is outside the wiper shaft 4b. The inclined surface 25b is the mounting surface 25a.
And gradually inclines in a direction away from the AS-side wiper blade 2b as it approaches the windshield 3. When the respective wiper blades 2a and 2b are at the lower turning position, the inclined surface 25b is opposed to the tip of the wiper blade 2a on the DR side.

Next, the operation of the opposing wiping type wiper device having such a structure will be described.

When a wiper switch (not shown) is turned off,
As shown in FIG. 5, each of the wiper blades 2a and 2b passes through the lower inversion position, and is stored at a storage position A, indicated by a dotted line in the figure.
Start moving toward B.

At this time, as shown in FIG. 7, the tip of the DR-side wiper blade 2a is guided by the inclined surface 25b, so that the track moves toward the outside of the vehicle body. At this time, the AS-side wiper blade 2b
Moves along the surface of the windshield 3 to the storage position B on the mall 20. Therefore, as shown in FIG.
-Side wiper blade 2a and AS-side wiper blade 2b
Move to storage positions A and B, respectively,
The wiper blade 2a on the DR side is positioned above the wiper blade 2b on the AS side and intersects with the vehicle body in an overlapping state. In the present embodiment, the lifter 25 is attached to the second yoke 23a. However, the present invention is not limited to this. The lifter 25 may be attached to another location as long as it can guide the wiper blade 2a on the DR side. Good.

The present invention is not limited to the above-described embodiment, and it goes without saying that various changes can be made without departing from the gist of the present invention. For example, in the present embodiment, the trajectory of one of the wiper blade 2a on the DR side and the wiper blade 2b on the AS side is moved. However, the present invention is not limited to this, and both wiper blades 2a and 2b are moved. May be changed.

In the present embodiment, the wiper blade 2a on the DR side intersects the wiper blade 2b on the AS side outside the vehicle body. However, the present invention is not limited to this. May be attached to the AS side, or the lifter 25 may be attached to the wiper blade 2a on the DR side so that the wiper blade 2b on the AS side intersects outside the vehicle body. In particular, lifter 2
5, the inclined surface 25b is attached to the windshield 3
The AS-side wiper blade 2b may be guided to the outside of the vehicle body by gradually inclining in the direction approaching the AS-side wiper blade 2b as it approaches.

Further, in the present embodiment, an example is shown in which both wiper arms 1a and 1b are driven by separate motors, respectively. However, both wiper arms 1a and 1b are connected by a single motor and a link mechanism. It can also be applied to a type that operates. As a means for detecting the rotation angle of the motor, a rotary encoder or the like may be used in addition to the rotation sensors 9a and 9b.

Further, as shown in FIG. 9, the D shown in FIG.
The guide plate 26 may be attached to the wiper blade 2a on the R side. This guide plate 26
The lifter 25 is formed in a shape having the same inclined surface 26b as the lifter 25 shown in FIG. 6, and at a position facing the guide member 15 when the DR-side wiper blade 2a moves to the storage position A, the wiper shaft 4a It is attached to the second yoke 27 which is on the inside. And, this inclined surface 26
b closes a gap C between the second yoke 27 and the blade rubber 28. Thereby, the wiper blade 2a on the DR side is guided by the inclined surface 26b so that the guide member 15 does not get stuck between the second yoke 27 and the blade rubber 28 of the wiper blade 2a on the DR side. become. Therefore, the guide member 15 is prevented from being stabbed into the gap C between the second yoke 27 and the blade rubber 28 of the wiper blade 2a on the DR side, and the wiper blade 2a on the DR side is securely held. It can be moved to the storage position A.

[0044]

According to the present invention, the wiper blade on the driver's seat side and the wiper blade on the passenger's seat side are guided by the track guide means in a direction overlapping with the vehicle body, and the respective wiper arms are crossed. Since it is stored inside the hood, the storage position of the wiper blade can be secured without reducing the wiping range of the wiper blade, and the front view of the vehicle having the opposed wiping type wiper device can be improved.

Even when the entrance of the storage space formed between the windshield and the hood cannot be set wide, if there is a gap that can pass one wiper blade, the storage space can be easily stored. It is possible to have functions.

[Brief description of the drawings]

FIG. 1 is an explanatory view schematically showing an opposed wiping type wiper device according to an embodiment of the present invention.

FIG. 2 is an explanatory view schematically showing a state in which a wiper blade is stored in the opposed wiping type wiper device shown in FIG.

3 is a cross-sectional view illustrating a cross section taken along line II of the opposed wiping-type wiper device illustrated in FIG. 2;

FIG. 4 is a sectional view showing a modification of the opposed wiping type wiper device shown in FIG. 3;

FIG. 5 is an explanatory view schematically showing an opposed wiping wiper device according to another embodiment of the present invention.

6 (a), (b) and (c) are a plan view, a front view and a side view, respectively, showing details of the AS-side wiper blade shown in FIG.

FIG. 7 is a cross-sectional view showing a trajectory of a wiper blade on the DR side with respect to the lifter shown in FIG. 5;

8 is a perspective view showing a state in which a wiper blade is stored in the opposed wiping type wiper device shown in FIG.

FIG. 9 is a perspective view schematically showing a guide plate.

[Description of Signs] 1a DR-side wiper arm 1b AS-side wiper arm 2a DR-side wiper blade 2b AS-side wiper blade 3 Windshield 3a, 3b Wiping range 4a, 4b Wiper shaft 5a, 5b Motor 6a, 6b Reduction gear 7a , 7b Drive mechanism 8a, 8b Wiper control device 9a, 9b Rotation sensor 10 Drive signal line 11 Storage space 11a Inlet portion 12 Bonnet 13 Depression 14 Mold 15 Guide member 15a Guide surface 15b Stopper 16 Stopper 17 Mold 18 Guide member 18a Tip 18b Guide surface 18c Stopper 20 Mold 21 Blade rubber 22a to 22d First yoke 23a, 23b Second yoke 24 Third yoke 24a Mounting part 25 Lifter 25a Mounting surface 25b Inclined surface 26 Guide plate 2 b inclined surface 27 storage position C gap portion of the second yoke 28 blade rubber A DR-side wiper blade storage location B AS-side wiper blade

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takayoshi Horii 1-4-1 Chuo, Wako-shi, Saitama Pref. Inside of Honda R & D Co., Ltd. (72) Masaaki Terawaki 1-4-1 Chuo, Wako-shi, Saitama Inside Honda R & D Co., Ltd. (72) Inventor Tohru Kawamura 1-4-1 Chuo, Wako-shi, Saitama Prefecture Inside Honda R & D Co., Ltd. (72) Kyoji Hirata 1-4-1 Chuo, Wako-shi, Saitama Pref. (72) Inventor Masaaki Nakai 1-4-1 Chuo, Wako-shi, Saitama F-term (reference) in Honda R & D Co., Ltd. 3D025 AA01 AC01 AD02 AD09 AE02 AE57 AE69 AE76 AE79 AG02

Claims (4)

[Claims] 1. A first wiper arm and a second wiper arm each having a swing center on both left and right sides of a vehicle body, and a first wiper arm attached to each of the wiper arms.
The wiper blade and the second wiper blade are configured to swing between an upper inversion position on both left and right portions of the windshield glass and a lower inversion position on the lower center of the windshield glass. A driving unit for oscillating the respective wiper arms and moving the respective wiper arms to a storage position below the lower reversing position when the wiper is at rest, and intersecting the respective wiper blades at the storage position. An opposed wiping type wiper device characterized by being stored by being stored. 2. The opposed wiping type wiper device according to claim 1, further comprising a track guide means for guiding a track of each of said wiper blades in a direction in which each of said wiper blades overlaps a vehicle body. Opposed wiping type wiper device. 3. The opposing wiping-type wiper device according to claim 2, wherein the trajectory guide means moves the trajectory of one of the first wiper arm and the second wiper arm along the windshield glass surface. An opposite wiping type wiper device, comprising: a guide member for guiding an extension of the direction, and a vehicle body panel having a concave portion for moving the trajectory of the other wiper arm toward the vehicle body. 4. The opposing wiping-type wiper device according to claim 2, wherein the trajectory guide means moves the trajectory of one of the first wiper arm and the second wiper arm toward the outside of the vehicle body. An opposing wiping-type wiper device, wherein the wiper device is a guide member.