WO2015099003A1 - ワイパ装置 - Google Patents
ワイパ装置 Download PDFInfo
- Publication number
- WO2015099003A1 WO2015099003A1 PCT/JP2014/084224 JP2014084224W WO2015099003A1 WO 2015099003 A1 WO2015099003 A1 WO 2015099003A1 JP 2014084224 W JP2014084224 W JP 2014084224W WO 2015099003 A1 WO2015099003 A1 WO 2015099003A1
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- WO
- WIPO (PCT)
- Prior art keywords
- wiper
- output shaft
- swing
- wiper device
- pair
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/16—Means for transmitting drive
- B60S1/163—Means for transmitting drive with means for stopping or setting the wipers at their limit of movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/16—Means for transmitting drive
- B60S1/166—Means for transmitting drive characterised by the combination of a motor-reduction unit and a mechanism for converting rotary into oscillatory movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/34—Wiper arms; Mountings therefor
- B60S1/3488—Means for mounting wiper arms onto the vehicle
- B60S1/3493—Means for mounting the wiper shaft in the wiper bearing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
Definitions
- the present invention relates to a wiper device that swings and drives a wiper member.
- a vehicle such as an automobile is equipped with a wiper device that wipes off deposits such as rainwater adhering to a windshield provided on the vehicle body and secures the driver's view.
- the wiper device mounted on the vehicle include a tandem wiper device that swings and drives a pair of wiper arms via a link mechanism by a single wiper motor, and a pair of wiper arms that are provided by a pair of wiper motors provided on the left and right sides of the vehicle.
- There is a counter-wiping wiper device that is driven to swing.
- the counter-wiping type wiper device has the advantage that the installation space on the vehicle body side can be reduced by the absence of the link mechanism, and as a result, the shock absorption space can be secured and the vehicle body design freedom can be improved. ing.
- Such a counter-wiping type wiper device is described in Patent Document 1, for example.
- the wiper device described in Patent Document 1 includes a drive motor that rotates forward and backward, and the drive motor drives the wiper shaft to swing.
- a wiper arm is fixed to the tip of the wiper shaft, and the wiper arm is driven to swing by rotating the drive motor forward and backward.
- a wiper device including these drive motors and wiper arms is fixed to the vehicle body via a fixing plate having a mounting opening.
- the fixed plate has a fixed opening, and is fixed to the transmission device casing by a fixing screw through the fixed opening.
- both the fixed plate and the wiper arm are provided with stopper surfaces for restricting the swing of the wiper arm with respect to the fixed plate by a predetermined angle or more.
- the regulating member (consisting of a plurality of stopper surfaces) that regulates the swing of the wiper arm (wiper member) by a predetermined angle or more is the drive motor (wiper motor).
- the fixing plate and the wiper arm which are separate members, are provided. Accordingly, the number of parts is large and the weight is increased.
- the conventional wiper device has a problem that the assembly work of the wiper device and the mounting operation of the wiper device on the vehicle body become complicated. Therefore, it has become necessary to consider a new structure that can provide the above-described regulating member while reducing the number of parts.
- An object of the present invention is to provide a wiper device that can reduce the number of parts, improve assembly workability, reduce size and weight, and can be provided with a restricting member that restricts swinging of the wiper member over a predetermined angle. There is.
- a wiper device that swings and drives a wiper member, a motor unit having a rotation shaft, an output shaft, a speed reduction mechanism unit that decelerates rotation of the rotation shaft, and the output shaft
- a controller for controlling the rotation of the motor a housing for housing the motor unit, the speed reduction mechanism unit, and the controller, a wiper member attached to a tip of the output shaft, and provided on the output shaft outside the housing,
- a swinging member that is swingably driven together with the output shaft, and a pair of swing restricting portions that are provided integrally with the housing and that control the swinging of the swinging member at a predetermined angle or more by contacting the swinging member. And comprising.
- the swing member includes a pair of first swing walls provided symmetrically with respect to the axis of the output shaft, and the output from the pair of first swing walls.
- a pair of second oscillating walls provided at a predetermined angle apart in the circumferential direction of the shaft and provided point-symmetrically with respect to the axis of the output shaft.
- the pair of swing restricting portions includes a first fixed wall and a second fixed wall facing each other in the circumferential direction of the output shaft, and the swing member swings a predetermined angle or more.
- the first rocking wall is in contact with the first fixed wall
- the second rocking wall is in contact with the second fixed wall.
- a cap member is attached to the output shaft, and the cap member covers the swing member.
- the wiper member is a wiper arm provided with a wiper blade at a tip portion.
- the wiper member is a link mechanism that interlocks a pair of wiper arms.
- the output shaft is provided with a rocking member that is rocked and driven outside the housing, and the housing is in contact with the rocking member to restrict the rocking member from swinging a predetermined angle or more.
- a swing restricting portion is provided, and the swing member and the pair of swing restricting portions can form a restricting member.
- FIG. 5 is a view corresponding to FIG. 4 illustrating a swing member according to a second embodiment.
- FIG. 5 is a view corresponding to FIG. 4 illustrating a swing member according to a third embodiment. It is a figure which shows the rocking
- FIG. 10 is a perspective view of a wiper motor according to a seventh embodiment as viewed from the output shaft side. It is a perspective view which shows the rocking
- FIG. 10 is a cross-sectional view showing the inside of a wiper motor according to a seventh embodiment.
- FIG. 10 is an explanatory diagram illustrating a wiper device according to an eighth embodiment.
- FIG. 1 is an explanatory view for explaining a state in which the wiper device according to the present invention is mounted on a vehicle body
- FIG. 2 is a plan view of the wiper motor of the wiper device of FIG. 1 viewed from the front side (output shaft side)
- FIG. 4 is a plan view of the wiper motor of the wiper device 1 as viewed from the back side (cover side)
- FIG. 4 is a partially enlarged view for explaining the swing range of the swing member.
- a windshield 11 as a windshield is provided on the front side of a vehicle body 10 forming a vehicle such as an automobile.
- the driver side and passenger side parts along the vehicle width direction (left and right direction in the figure) of the vehicle body 10 include the DR wiper device 20 and the AS side, respectively.
- a wiper device 30 is mounted.
- the wiper device according to the present embodiment employs a counter-wiping wiper device provided with a wiper device on each of the driver seat side and the passenger seat side.
- the DR side represents the driver seat side
- the AS side represents the passenger seat side.
- the DR-side wiper device 20 and the AS-side wiper device 30 include a DR-side wiper motor 21 and an AS-side wiper motor 31, respectively.
- Each of the wiper motors 21 and 31 swings the DR wiper arm 22 and the AS wiper arm 32 (not shown in detail) at a predetermined swing angle.
- each wiper blade (not shown) provided at the tip of each wiper arm 22, 32 performs a reciprocating wiping operation on the windshield 11, and thus wipes rainwater and the like adhering to the windshield 11.
- the field of view is secured.
- each wiper arm 22, 32 constitutes a wiper member in the present invention.
- a dash panel 12 that forms a skeleton of the vehicle body 10 is provided on the front side of the vehicle body 10.
- the dash panel 12 is provided so as to cross between the DR side and the AS side of the vehicle body 10, and both sides in the longitudinal direction of the dash panel 12 are the DR side inside panel 13 and the AS side inside that form the skeleton of the vehicle body 10.
- Each panel 14 is firmly fixed by welding or the like.
- the dash panel 12, the DR side inside panel 13, and the AS side inside panel 14 are all high-strength members.
- the DR side first fixing portion 12a and the AS side first fixing portion 12b are firmly fixed to the dash panel 12 by welding or the like.
- the DR side inside panel 13 is firmly fixed with a DR side second fixing portion 13a and a DR side third fixing portion 13b by welding or the like.
- the AS side second panel 14 a and the AS side third fixing part 14 b are firmly fixed to the AS side inside panel 14 by welding or the like.
- the DR-side wiper device 20 is fixed to the DR-side first fixing portion 12a, the DR-side second fixing portion 13a, and the DR-side third fixing portion 13b by three-point support, and the AS-side first fixing portion 12b, AS The AS-side wiper device 30 is fixed to the side second fixing portion 14a and the AS side third fixing portion 14b by three-point support.
- the shaded portion in FIG. 1 indicates a fixing portion (high strength portion) on the vehicle body 10 side where the DR-side wiper device 20 and the AS-side wiper device 30 are fixed.
- the DR-side wiper motor 21 and the AS-side wiper motor 31 are formed in the same manner as shown in FIG. 1, and each of the wiper motors 21 and 31 includes three attachment portions a, b, and c, respectively.
- the attachment portions a, b, c of the DR-side wiper motor 21 are respectively connected to the DR-side first fixing portion 12a, the DR-side second fixing portion 13a, and the DR-side third fixing portion 13b via fixing bolts (not shown). Attached.
- the mounting portions a, b, c of the AS-side wiper motor 31 are fixed to the AS-side first fixing portion 12b, the AS-side second fixing portion 14a, and the AS-side third fixing portion 14b, respectively, by fixing bolts (not shown). Is attached through.
- the DR-side wiper motor 21 is a so-called reverse wiper motor (reversing wiper motor).
- the DR-side wiper arm 22 By switching the rotation direction of the DR-side wiper motor 21, that is, forward / reverse rotation at a predetermined timing, the DR-side wiper arm 22 (see FIG. 1) is driven to swing within a predetermined wiping range on the windshield 11.
- the DR-side wiper motor 21 includes a motor main body 40 and a speed reduction mechanism main body 50.
- the motor body 40 includes a motor case (housing) 41 formed into a bottomed cylindrical shape by pressing (deep drawing) a magnetic material such as a steel plate.
- a stator 42 formed in a substantially cylindrical shape is fixed inside the motor case 41, and each stator has a three-phase coil (not shown) composed of a U phase, a V phase, and a W phase. ) Is wound in a predetermined winding manner.
- a rotor 43 having a plurality of magnets (not shown) around it is rotatably provided through a predetermined gap.
- a rotation shaft 44 penetrates and is fixed to the rotation center of the rotor 43, and the rotation shaft 44 rotates together with the rotor 43.
- the motor body 40 according to the present embodiment employs a brushless motor.
- the motor unit according to the present invention includes a stator 42, a rotor 43, and a rotating shaft 44 housed in the motor case 41.
- the front end side (lower side in FIG. 2) of the rotating shaft 44 protrudes from the inside of the motor case 41 and extends to the inside of the speed reduction mechanism main body 50.
- a worm 44a forming the speed reduction mechanism 51 is integrally provided on the distal end side of the rotating shaft 44, and the worm 44a is integrally formed on the outer periphery of the rotating shaft 44 by rolling or the like.
- the reduction mechanism main body 50 includes a reduction gear case (housing) 52 that accommodates the reduction mechanism 51 therein.
- the speed reducer case 52 is formed in a case main body 53 formed into a bottomed shape by casting a molten aluminum material, and has an outer shape substantially similar to the opening portion of the case main body 53.
- a resin cover 54 that closes the opening.
- the case main body 53 and the cover 54 are in close contact with each other via a seal member (not shown), and are integrated by three fastening screws S (see FIG. 3) under this state. This prevents rainwater or the like from entering the reducer case 52.
- a worm wheel 55 that forms a speed reduction mechanism 51 is rotatably accommodated inside the case body 53.
- the worm wheel 55 is formed in a substantially disk shape from a resin material such as plastic, and gear teeth 55a (not shown in detail) that mesh with the worm 44a are integrally provided on the outer periphery thereof. Thereby, the worm wheel 55 rotates with the rotation of the rotating shaft 44.
- a base end portion of an output shaft 56 made of a steel rod is fixed so as to be integrally rotatable by serration fitting (not shown), and the output shaft 56 is fixed by a speed reduction mechanism portion 51. It is designed to rotate.
- the rotation of the rotation shaft 44 is decelerated by the worm 44a and the worm wheel 55 (deceleration mechanism unit 51) and transmitted to the output shaft 56 with a high torque.
- the output shaft 56 is rotatably supported by the bottom wall portion 53a of the case main body 53, and the distal end portion of the output shaft 56 is extended to the outside through the bottom wall portion 53a. That is, the base end portion of the output shaft 56 is accommodated in the reduction gear case 52.
- the output shaft 56 is provided with a rocking member 63 (described later) that also functions as a push nut. This prevents the output shaft 56 from rattling in the axial direction with respect to the bottom wall portion 53a.
- a serration portion and a male screw portion are integrally provided at the distal end portion of the output shaft 56. And the base end part of DR side wiper arm 22 (refer FIG. 1) is attached to a serration part so that relative rotation is impossible. Further, a fastening nut (not shown) is screwed to the male screw portion with the DR-side wiper arm 22 attached to the serration portion, thereby preventing the DR-side wiper arm 22 from coming off from the serration portion. Done.
- the cover 54 is integrally provided with a connector connecting portion 54a to which an external connector (not shown) provided on the vehicle body 10 side is connected.
- a plurality of terminals (not shown) are insert-molded in the connector connecting portion 54a, and the plurality of terminals include terminals for driving current and rotation detection / position detection sensors.
- One end of each terminal is electrically connected to a terminal (not shown) of an external connector, and the other end of each terminal is connected to a controller 54b (not shown in detail) fixed inside the cover 54.
- Each is electrically connected. That is, the controller 54b is also housed in the reducer case 52.
- the controller 54b controls forward / reverse rotation of the output shaft 56 by controlling forward / reverse rotation of the rotation shaft 44.
- the insertion direction of the external connector with respect to the connector connecting portion 54a is directed to the side opposite to the mounting portion b side, that is, the lower side in the drawing.
- the DR-side wiper motor 21 and the AS-side wiper motor 31 are mounted on the vehicle body 10 as shown in FIG.
- the connector connecting portion 54a is directed toward the space with a relatively large margin. Accordingly, it is possible for the body maker or the like to easily insert the external connector. This point also leads to an improvement in maintainability of the DR side wiper motor 21.
- a regulating member 60 is provided on the bottom wall 53a and the output shaft 56 of the case main body 53. As shown in FIG. This restricting member 60 exhibits a fail-safe function when the output shaft 56 swings at a large swing angle for some reason, and prevents the wiper blade (not shown) from overrunning. It has become. In FIG. 1, the regulating member 60 is not shown for easy understanding.
- the regulating member 60 is formed of a first regulating projection 61 and a second regulating projection 62 integrally formed on the bottom wall portion 53a, and a swinging member 63 provided on the output shaft 56 so as to be integrally rotatable.
- the pair of first and second restricting protrusions 61 and 62 and the swing member 63 are shaded in order to clarify the configuration of the restricting member 60.
- first and second restricting protrusions (swing restricting portions) 61 and 62 are formed integrally with the case body 53 when the case body 53 is cast-molded, and project in the axial direction of the output shaft 56. It is formed in a rod shape that extends straight. These first and second restricting projections 61 and 62 are provided around the output shaft 56 so as to sandwich the output shaft 56, the first restricting projection 61 is disposed on the mounting portion a side, and the second restricting projection 62 is attached. It is arranged on the part c side.
- the first contact surface S1 of the swing member 63 comes into contact with the first restricting protrusion 61 when a problem occurs in which the DR-side wiper motor 21 overruns counterclockwise in the drawing. It is like that.
- the second contact surface S2 of the swing member 63 is reversed. Are in contact.
- the cross-sectional shape of the pair of first and second restricting protrusions 61 and 62 is not limited to a substantially rectangular shape as shown in the figure, and may be formed in a circular shape or the like.
- the first and second contact surfaces S1 and S2 side of the first and second restriction projections 61 and 62 are connected to the first and second contact surfaces S1 and S2. It is desirable that the first and second contact surfaces S1 and S2 have a planar shape so as to make surface contact.
- the interval provided around the output shaft 56 of the pair of first and second restricting projections 61 and 62 is such that the swing angle of the wiper blade is the wiping allowable limit angle (b °).
- the interval is set. That is, the wiping allowable limit angle (b °) is a limit angle at which the wiper blade can be moved to the upper reversal position URP side and the lower reversal position LRP side, respectively.
- the limit swing angle of the swing member 63 (the limit swing angle of the wiper blade) is set as the wiping allowable limit angle (b °), and this wiping allowable limit angle (b °) is the predetermined angle in the present invention. It has become.
- the swing member 63 (wiper blade) is driven to swing within a normal wiping angle (a °) range.
- These normal wiping angle (a °) and wiping allowable limit angle (b °) are set according to the specifications of the vehicle body 10, that is, the size and shape of the windshield 11 (see FIG. 1), respectively.
- the rocking member 63 is formed into a plate shape by pressing a steel plate or the like, and includes a fixing portion 63a formed in a semicircular shape and a main body portion 63b formed in a quadrangular shape.
- the swing member 63 is driven to swing by the output shaft 56 outside the speed reducer case 52.
- An attachment hole 63c is integrally provided in the fixed portion 63a, and the inner diameter dimension of the attachment hole 63c is set to be smaller than the outer diameter dimension of the output shaft 56. That is, the fixing portion 63a functions as a push nut and is firmly fixed by press-fitting from the tip portion of the output shaft 56.
- a first contact surface S1 and a second contact surface S2 are disposed on a body portion 63b provided integrally with the fixing portion 63a so as to face the swing direction (left and right sides in FIG. 4) of the swing member 63. Are provided.
- the wiper blade reaches the wiping allowance limit toward the upper reversal position URP, the first contact surface S1 comes into contact with the first restriction protrusion 61 provided on the case body 53, and the second contact surface S2
- the wiper blade comes into contact with the second restricting protrusion 62 provided on the case main body 53.
- the pair of first and second restricting protrusions 61 and 62 are configured to restrict the swing of the swing member 63 by a predetermined angle or more (b ° or more).
- the output shaft 56 is integrally provided with the swing member 63 that is driven to swing outside the speed reducer case 52, and the speed reducer case. 52 is provided with a pair of first and second restricting projections 61 and 62 that come into contact with the swinging member 63 and restrict swinging of the swinging member 63 beyond the wiping allowable limit angle (b °).
- the regulating member 60 can be formed by the member 63 and the pair of first and second regulating projections 61 and 62.
- Embodiment 2 of the present invention will be described in detail with reference to the drawings. Note that portions having the same functions as those in the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.
- FIG. 5 shows a view corresponding to FIG. 4 showing the swing member of the second embodiment.
- the DR-side wiper motor 70 according to the second embodiment is different only in the shape of the swing member 71 that constitutes the regulating member 60. Specifically, the width dimension T1 along the swinging direction of the main body 71a of the swinging member 71 is set to a smaller dimension (narrower) than that of the first embodiment (see FIG. 4). Thereby, the wiping allowable limit angle (d °) of the wiper blade can be increased as compared to the first embodiment (d °> b °).
- the wiping allowable limit angle (d °) can be increased, and accordingly, the normal wiping angle (c °) is also made larger than that in the first embodiment (c) (c). °> a °).
- the normal wiping angle (c °) is set by tuning (adjusting) the controller 54b (see FIG. 3).
- FIG. 6 shows a view corresponding to FIG. 4 showing the swing member of the third embodiment.
- the DR-side wiper motor 80 according to the third embodiment is different only in the shape of the swing member 81 that constitutes the regulating member 60. Specifically, the width dimension T2 along the swinging direction of the main body 81a of the swinging member 81 is set to a larger dimension (wider) than that in the first embodiment (see FIG. 4). Thereby, the wiping allowable limit angle (e °) of the wiper blade can be reduced as compared with the first embodiment (e ° ⁇ b °).
- the normal wiping angle (a °) in the third embodiment is set to the same angle as in the first embodiment.
- FIG. 7 is a diagram showing the swing member of the fourth embodiment alone.
- the swing member 90 includes a first swing body 91 and a second swing body 92. These first and second oscillating bodies 91 and 92 are both formed in the same shape as the oscillating member 63 (see FIG. 4) of the first embodiment.
- the first and second oscillating bodies 91 and 92 include first and second fixing portions 91a and 92a and first and second main body portions 91b and 92b, respectively.
- a common mounting hole 93 is formed in each of the first and second fixing portions 91a and 92a, and the first and second oscillating bodies 91 and 92 are connected around the mounting hole 93.
- the first and second oscillating bodies 91 and 92 are connected by caulking and fixing rivets or the like (not shown), and the first and second oscillating bodies 91 and 92 are indicated by arrows M.
- it is rotatable around the mounting hole 93.
- a first contact surface S1 is formed on the first swing body 91 side
- a second contact surface S2 is formed on the second swing body 92 side.
- the same operational effects as in the first embodiment can be obtained.
- the first and second oscillating bodies 91 and 92 are pivotally connected to each other via the first and second fixing portions 91a and 92a, so that the oscillating member is obtained.
- the width dimension T3 of 90 can be adjusted. Therefore, the “wiping allowable limit angle” shown in FIG. 4 can be adjusted to correspond to the vehicle bodies having different specifications.
- the mounting hole 93 is press-fitted into the output shaft 56 (see FIG. 4) as in the first embodiment, the width dimension T3 of the swinging member 90 after being fixed to the output shaft 56 changes. There is nothing.
- FIG. 8 (a) and 8 (b) show enlarged views corresponding to the broken-line circle A in FIG. 4 showing the fifth and sixth embodiments.
- the fifth embodiment is different only in that an elastic rubber G as an elastic member is provided around the first and second restricting protrusions 61 and 62, respectively.
- This elastic rubber G alleviates the impact at the time of collision between the swing member 63 and the first and second restricting projections 61 and 62.
- the elastic rubber G on the second regulating projection 62 side is shown enlarged.
- elastic rubber G as an elastic member is provided on each of the first and second regulating projections 61 and 62 side of the swing member 63. Only is different.
- the elastic rubber G forms first and second contact surfaces S1 and S2, and relieves an impact at the time of collision between the swing member 63 and the first and second restricting protrusions 61 and 62. ing.
- the elastic rubber G forming the second contact surface S2 is shown in an enlarged manner.
- the elastic rubber G may be provided on both the swing member 63 and the first and second restricting protrusions 61 and 62.
- the elastic rubber G can mitigate the impact at the time of collision between the swing member 63 and the first and second restricting protrusions 61 and 62. Therefore, in the case where a problem such as overrun occurs in the DR-side wiper motor 21, it is possible to suppress the generation of abnormal noise while suppressing the breakage of the swing member 63 and the first and second restricting protrusions 61 and 62. it can.
- FIG. 9 is a perspective view of the wiper motor according to the seventh embodiment when viewed from the output shaft side
- FIG. 10 is a perspective view showing the swing member of FIG. 9 alone
- FIG. 11 is the first and second restricting protrusions of FIG.
- FIG. 12 is a plan view illustrating the swing range of the swing member of FIG. 10, and
- FIG. 13 is a cross-sectional view illustrating the inside of the wiper motor of the seventh embodiment.
- the DR-side wiper motor 100 is different in the structure of the regulating member 110. Moreover, as shown by the arrow m in the figure, the point that the cap member 120 is mounted on the output shaft 56 so as to cover the regulating member 110 is different. Further, in the DR-side wiper motor 100, one of the three attachment portions a, b, c is inserted into an insertion hole (not shown) provided in the vehicle body 10 (see FIG. 1). It is a mounting part. In this way, by making the structure of one of the three attachment portions a, b, and c different, the erroneous assembly of the DR-side wiper motor 100 to the vehicle body 10 is prevented. Further, since only two fixing bolts are required, the number of parts can be reduced and the workability can be improved.
- the cap member 120 is formed in a stepped cylindrical shape by an elastic material such as rubber.
- the cap member 120 includes a large-diameter covering main body 121 that covers the regulating member 110 and a small-diameter press-fitting portion 122 that is fixed to the output shaft 56 by press-fitting.
- the regulating member 110 is completely hidden by the covering body 121. It becomes a state. Therefore, the cap member 120 reliably prevents the regulating member 110 from getting wet. Since the cap member 120 is fixed to the output shaft 56, the cap member 120 rotates together with the output shaft 56.
- the regulating member 110 includes a swinging member 111 formed into a predetermined shape by pressing a steel plate or the like. As shown in FIG. 10, the swing member 111 includes a fixed cylinder portion 112 fixed to the output shaft 56 and a pair of main body portions 113.
- the fixed cylinder portion 112 is fixed to the first serration portion 56a provided on the output shaft 56 by caulking or the like.
- the swing member 111 is firmly fixed to the output shaft 56 so as not to rotate relative to the output shaft 56.
- the first serration portion 56 a extends straight in the axial direction of the output shaft 56.
- a second serration portion 56b is provided on the tip side (upper side in the drawing) of the output shaft 56 from the first serration portion 56a, and the DR-side wiper arm 22 (see FIG. 1) is provided in the second serration portion 56b. ) Is fixed to be relatively non-rotatable.
- the second serration portion 56b extends so as to taper in the axial direction of the output shaft 56 so that the DR-side wiper arm 22 can be easily attached.
- one end (see FIG. 14) of a crank arm 131a according to an eighth embodiment to be described later can be fixed to the second serration portion 56b.
- the pair of main body parts 113 are provided integrally with the fixed cylinder part 112 so as to face each other with the axis of the fixed cylinder part 112 interposed therebetween.
- Each main body 113 is provided with a pair of first swing walls 113a arranged to be point-symmetric with respect to the axis CE of the output shaft 56.
- each main body 113 is provided with a pair of second swing walls 113b arranged to be point-symmetric with respect to the axis CE of the output shaft 56.
- the second rocking wall 113b is opposed to the first rocking wall 113a with the main body 113 interposed therebetween in the circumferential direction of the fixed cylinder part 112. That is, the pair of second rocking walls 113b are provided at a predetermined angle from the pair of first rocking walls 113a in the circumferential direction of the output shaft 56.
- the angle formed by the first rocking wall 113a and the second rocking wall 113b sandwiching the main body 113 around the axis CE is approximately 80 °.
- the restriction member 110 includes a first restriction protrusion (swing restriction part) 114 and a second restriction protrusion (swing restriction part) 115 provided integrally with the case main body 53.
- these first and second restricting projections 114 and 115 are formed by a part of a reinforcing rib 53 c that reinforces a boss portion 53 b provided integrally with the bottom wall portion 53 a of the case main body 53. ing.
- the boss portion 53b supports the output shaft 56 in a freely rotatable manner, and a large reaction force from the output shaft 56 is applied to the boss portion 53b.
- a plurality of reinforcing ribs 53c protruding radially around the output shaft 56 are provided around the boss portion 53b. More specifically, eight reinforcing ribs 53c are provided at equal intervals (45 ° intervals) on the outer peripheral portion of the boss portion 53b.
- the output shaft 56 is supported by a tea washer 56c press-fitted and fixed to the output shaft 56 so as to be rotatable with respect to the boss portion 53b without shaking in the axial direction.
- the first and second restricting protrusions 114 and 115 are the reinforcing ribs 53c facing each other across the output shaft 56 among the eight reinforcing ribs 53c, and the reinforcing ribs 53c near the mounting portion a and the mounting portion c. (See FIG. 9).
- each of the first and second restricting protrusions 114 and 115 protrudes from the reinforcing rib 53c toward the tip end in the axial direction of the output shaft 56 (upper side in the drawing).
- the first and second restricting protrusions 114 and 115 overlap the swinging member 111 when the DR-side wiper motor 100 is viewed from the direction orthogonal to the axial direction of the output shaft 56 (FIG. 9). reference).
- the first restricting protrusion 114 includes a first fixed wall 114a and a second fixed wall 114b that face each other in the circumferential direction of the output shaft 56.
- the second restricting projection 115 includes a first fixed wall 115 a and a second fixed wall 115 b that face each other in the circumferential direction of the output shaft 56.
- the first fixed wall 114a of the first restricting protrusion 114 and the first fixed wall 115a of the second restricting protrusion 115 are arranged so as to be point symmetric with respect to the axis CE of the output shaft 56.
- the second fixed wall 114b of the first restricting protrusion 114 and the second fixed wall 115b of the second restricting protrusion 115 are also arranged so as to be point symmetric with respect to the axis CE of the output shaft 56. .
- the first swing walls 113a of the swing member 111 are arranged so as to be point-symmetric with respect to the axis CE of the output shaft 56, and each first Since the first fixed walls 114a and 115a of the second restricting projections 114 and 115 are disposed, the first swing walls 113a can be brought into contact with the first fixed walls 114a and 115a substantially simultaneously.
- the second rocking walls 113b of the rocking member 111 are arranged so as to be point symmetric with respect to the axis CE of the output shaft 56, and the first and second restricting protrusions 114 and 115 are arranged. Since the second fixed walls 114b and 115b are disposed, the second swing walls 113b can also be brought into contact with the second fixed walls 114b and 115b substantially simultaneously.
- the output shaft 56 can be prevented from being bent with respect to the boss portion 53b, and the bending deformation and partial wear of the output shaft 56 can be reliably suppressed. Therefore, the life of the DR-side wiper motor 100 can be extended and the maintenance cycle can be extended.
- a substrate 54c constituting a controller 54b is accommodated in the DR-side wiper motor 100.
- the substrate 54c has a rotation detection sensor SE and an FET for driving the motor body 40.
- Electronic components such as a module FM are mounted.
- the rotation detection sensor SE an MR sensor that is switched by magnetism is used.
- first restricting protrusion 114 and the second restricting protrusion 115 are formed by a part of the reinforcing rib 53c that reinforces the boss portion 53b, the first restricting protrusion 114 and the second restricting protrusion 115 are separately provided on the case body 53.
- the case main body 53 can be easily molded and the appearance of the case 53 can be improved.
- the regulating member 110 including the swinging member 111, the first regulating projection 114, and the second regulating projection 115 is covered with the cap member 120 attached to the output shaft 56, the regulating member 110 is reliably protected from rust and the like. And the appearance of the case 53 can be improved.
- FIG. 14 is an explanatory diagram for explaining the wiper device of the eighth embodiment.
- FIG. 14 only one wiper motor 100 having the same structure as the DR-side wiper motor 100 of the seventh embodiment is provided.
- the cap member 120 (see FIG. 9) is not shown in order to illustrate the regulating member 110.
- the wiper device 130 is a so-called tandem type wiper device in which the DR-side wiper arm 22 and the AS-side wiper arm 32 are interlocked with one wiper motor 100.
- a link mechanism 131 for transmitting the power of the wiper motor 100 to the wiper arms 22 and 32 is provided between the wiper motor 100 and the wiper arms 22 and 32.
- the link mechanism 131 constitutes a wiper member in the present invention.
- the link mechanism 131 is fixed to the crank arm 131a as a wiper member having one end fixed to the output shaft 56, a drive rod 131b having one end fixed to the other end of the crank arm 131a, and the other end of the drive rod 131b. It includes a DR drive lever 131c and a connecting rod 131e provided between the DR drive lever 131c and the AS drive lever 131d. In addition, ball joints (not shown) are provided at connecting portions of these components. As a result, the power of the wiper motor 100 is smoothly transmitted to the wiper arms 22 and 32, and the wiper arms 22 and 32 are driven to swing in conjunction with each other.
- the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the scope of the invention.
- the circular mounting holes 63c and 93 and the fixed cylinder portion 112 are fixed to the output shaft 56 having a circular cross section by press-fitting.
- the cross-sectional shape of the output shaft 56 may be a non-circular shape (for example, a D-cut shape), and the mounting holes 63c and 93 and the fixed cylindrical portion 112 may be non-circular. In this case, it is possible to reliably prevent rattling between the two after the press-fitting, and thus it is possible to reliably prevent the generation of noise during normal operation of the DR-side wiper motors 21 and 100.
- the elastic rubber G is used as the elastic member.
- the present invention is not limited to this, and a coil spring that functions as an elastic member can also be used.
- at least one of the swing member 63 and the first and second restricting protrusions 61 and 62 is provided with a coil spring so that the expansion / contraction direction of the coil spring matches the swing direction of the swing member 63.
- the elastic rubber G of the fifth and sixth embodiments and the above-described coil spring which is a modified example thereof can be employed in the seventh and eighth embodiments.
- the motor main body 40 is a brushless motor.
- the present invention is not limited to this, and a brushed motor can also be used.
- the wiper device is mounted on a vehicle such as an automobile, and is used for wiping off deposits such as rainwater adhering to the windshield to ensure good visibility.
Abstract
Description
Claims (6)
- ワイパ部材を揺動駆動するワイパ装置であって、
回転軸を有するモータ部と、
出力軸を有し、前記回転軸の回転を減速する減速機構部と、
前記出力軸の回転を制御するコントローラと、
前記モータ部、前記減速機構部および前記コントローラを収容するハウジングと、
前記出力軸の先端部に取り付けられるワイパ部材と、
前記ハウジングの外部において前記出力軸に設けられ、前記出力軸とともに揺動駆動される揺動部材と、
前記ハウジングに一体に設けられ、前記揺動部材と接触して前記揺動部材の所定角度以上の揺動を規制する一対の揺動規制部と、
を備える、ワイパ装置。 - 請求項1記載のワイパ装置において、
前記揺動部材は、
前記出力軸の軸心を対称点として点対称に設けられた一対の第1揺動壁と、
前記一対の第1揺動壁から前記出力軸の周方向に所定角度離間して設けられ、前記出力軸の軸心を対称点として点対称に設けられた一対の第2揺動壁と、
を有する、ワイパ装置。 - 請求項2記載のワイパ装置において、
前記一対の揺動規制部は、前記出力軸の周方向に互いに対向する第1固定壁および第2固定壁をそれぞれ備え、
前記揺動部材が所定角度以上揺動しようとするときに、前記第1揺動壁が前記第1固定壁に接触され、前記第2揺動壁が前記第2固定壁に接触される、ワイパ装置。 - 請求項1記載のワイパ装置において、
前記出力軸にキャップ部材が装着され、前記キャップ部材は前記揺動部材を覆う、ワイパ装置。 - 請求項1記載のワイパ装置において、
前記ワイパ部材は、先端部にワイパブレードが設けられるワイパアームである、ワイパ装置。 - 請求項1記載のワイパ装置において、
前記ワイパ部材は、一対のワイパアームを連動させるリンク機構である、ワイパ装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015554981A JP6441814B2 (ja) | 2013-12-25 | 2014-12-25 | ワイパ装置 |
US15/107,617 US10071710B2 (en) | 2013-12-25 | 2014-12-25 | Wiper apparatus |
EP14874948.4A EP3093202B1 (en) | 2013-12-25 | 2014-12-25 | Wiper device |
CN201480065568.XA CN105793127B (zh) | 2013-12-25 | 2014-12-25 | 雨刮装置 |
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JP2013267086 | 2013-12-25 | ||
JP2013-267086 | 2013-12-25 | ||
JP2014256085 | 2014-12-18 | ||
JP2014-256085 | 2014-12-18 |
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Publication Number | Publication Date |
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WO2015099003A1 true WO2015099003A1 (ja) | 2015-07-02 |
Family
ID=53478850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2014/084224 WO2015099003A1 (ja) | 2013-12-25 | 2014-12-25 | ワイパ装置 |
Country Status (5)
Country | Link |
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US (1) | US10071710B2 (ja) |
EP (1) | EP3093202B1 (ja) |
JP (1) | JP6441814B2 (ja) |
CN (1) | CN105793127B (ja) |
WO (1) | WO2015099003A1 (ja) |
Cited By (1)
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WO2016199619A1 (ja) * | 2015-06-09 | 2016-12-15 | 株式会社ミツバ | ワイパ装置 |
Families Citing this family (3)
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US10442402B2 (en) * | 2017-02-27 | 2019-10-15 | Ford Global Technologies, Llc | Sensor and cleaning apparatus |
CN108216126A (zh) * | 2017-12-13 | 2018-06-29 | 苏州长风航空电子有限公司 | 一种双电机雨刷系统及其控制方法 |
EP3628550A1 (en) * | 2018-09-28 | 2020-04-01 | Valeo Autosystemy SP. Z.O.O. | Brushless wiper motor |
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Also Published As
Publication number | Publication date |
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JPWO2015099003A1 (ja) | 2017-03-23 |
EP3093202A1 (en) | 2016-11-16 |
CN105793127B (zh) | 2018-02-09 |
EP3093202B1 (en) | 2019-09-18 |
EP3093202A4 (en) | 2017-10-18 |
US20160318484A1 (en) | 2016-11-03 |
CN105793127A (zh) | 2016-07-20 |
US10071710B2 (en) | 2018-09-11 |
JP6441814B2 (ja) | 2018-12-19 |
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