JP2013193531A - Wiper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiper device of which the frictional resistance during operation can be suppressed by preventing water, dust or the like from being stagnant within a holding hole of a pivot holder.SOLUTION: A pivot shaft 24 is inserted into a holding hole 33 of a pivot holder 26, a pair of tubular bearings 50, 51 are provided between an inner peripheral surface of the pivot holder 26 and an outer peripheral surface of the pivot shaft 24, and both bearings 50, 51 are opposite to each other while being separated in an axial center direction A of the pivot shaft 24. Between both the bearings 50, 51 within the holding hole 33, a grease reservoir 52 is formed and in the pivot holder 26, a first grease supply means 54 is provided which supplies grease from the outside into the grease reservoir 52.

Description

  The present invention relates to a wiper device provided in, for example, a cargo handling vehicle.

  Conventionally, as a wiper device, for example, as shown in FIG. 13, a pivot shaft 101, a cylindrical pivot holder 103 that is attached to a part 102 of a vehicle body and rotatably holds the pivot shaft 101, and a pivot shaft 101 A wiper device having a wiper arm 104 provided on the motor, a motor (not shown) for reciprocatingly rotating the pivot shaft 101, and a link mechanism 105 for interlockingly connecting the motor and the pivot shaft 101 is described.

  The pivot holder 103 has a holding hole 106, the pivot shaft 101 is inserted into the holding hole 106, and a pair of cylindrical bearings 107 are provided between the inner peripheral surface of the pivot holder 103 and the outer peripheral surface of the pivot shaft 101. The two bearings 107 are spaced apart from each other in the axial direction A of the pivot shaft 101.

  Further, the pivot shaft 101 is provided with a push nut 108 that rotates together with the pivot shaft 101 and restricts the movement of the pivot shaft 101 in the axial direction A. A washer 109 is provided between the push nut 108 and one end of the pivot holder 103.

  According to this, when the motor is driven, the pivot shaft 101 reciprocates through the link mechanism 105, and the wiper arm 104 reciprocally swings around the pivot shaft 101. Wiped out.

  When the pivot shaft 101 reciprocates, the outer peripheral surface of the pivot shaft 101 comes into sliding contact with the inner peripheral surface of the bearing 107, and the push nut 108 reciprocates together with the pivot shaft 101, so that the push nut 108 is a washer 109. Or a washer 109 slidably contacts one end of the pivot holder 103.

  A wiper device having the above-described configuration is described in, for example, Patent Document 1 below.

JP2011-105099A

  However, in the above-described conventional type, a space 110 is formed between the bearings 107 in the holding hole 106 of the pivot holder 103, and there is a problem that water, dust, and the like enter and stay in the space 110 from the outside. .

  Further, when the pivot shaft 101 reciprocates, the outer peripheral surface of the pivot shaft 101 is in sliding contact with the inner peripheral surface of the bearing 107, and the push nut 108 is in sliding contact with the washer 109 or the washer 109 is in contact with the pivot holder 103. There is a problem that the frictional resistance is increased by these sliding contact portions because they are in sliding contact with the one end portion.

  An object of the present invention is to provide a wiper device capable of preventing water, dust, and the like from staying in a holding hole of a pivot holder and suppressing frictional resistance during operation.

To achieve the above object, according to the first aspect of the present invention, there is provided a pivot shaft, a pivot holder attached to an attachment member and rotatably holding the pivot shaft, a wiper arm provided on the pivot shaft, and a pivot shaft. A wiper device having a drive device for reciprocating rotation, and an interlocking mechanism for interlockingly connecting the drive device and the pivot shaft,
The pivot holder has a holding hole,
The pivot shaft is inserted into the holding hole,
A pair of cylindrical bearings are provided between the inner peripheral surface of the pivot holder and the outer peripheral surface of the pivot shaft,
Both bearings are spaced apart and opposed in the axial direction of the pivot shaft,
An oil reservoir is formed between both bearings in the holding hole,
The pivot holder is provided with a first grease supplying means for supplying oil to the oil reservoir from the outside.

  According to this, when the drive device is driven, the pivot shaft reciprocates via the interlocking mechanism, and the wiper arm reciprocally swings around the pivot shaft, thereby wiping rainwater or the like attached to the window or the like. When the pivot shaft reciprocates, the outer peripheral surface of the pivot shaft is in sliding contact with the inner peripheral surfaces of both bearings.

  By supplying the oil and fat from the outside to the oil and fat reservoir by the first greasing means, the oil and fat is filled in the oil and fat reservoir. Thereby, since the space of the oil reservoir is filled with oil, it is possible to prevent water, dust and the like from staying in the holding hole of the pivot holder. Furthermore, when the oil and fat enters between the outer peripheral surface of the pivot shaft and the inner peripheral surface of the bearing from the oil reservoir, the frictional resistance of the sliding contact portion between the pivot shaft and the bearing is suppressed.

In the wiper device according to the second invention, the pivot shaft is provided with a pair of movement restricting portions for restricting movement of the pivot shaft in the axial direction,
Each of the movement restricting portions protrudes radially outward of the pivot shaft outside the holding hole and faces the end of the pivot holder in the axial direction.
The pivot holder is provided between both movement restricting parts,
A groove is formed on the outer peripheral surface of the bearing to guide the oil in the oil reservoir between the movement restricting portion and the end of the pivot holder.

  According to this, the movement restricting portion reciprocates together with the pivot shaft to restrict movement of the pivot shaft in the axial direction. Since the grease filled in the oil reservoir is supplied between the movement restricting portion and the end of the pivot holder through the groove of the bearing, the frictional resistance of the sliding contact portion between the movement restricting portion and the end of the pivot holder Is suppressed.

In the wiper device according to the third invention, one end of the pivot shaft protrudes outward of the mounting member and the other end protrudes inward.
The wiper arm and the interlocking mechanism are connected to one end of the pivot shaft,
The pivot holder has a first holder portion protruding outward from the mounting member,
The first holder part is located between both the wiper arm and the interlocking mechanism and the mounting member in the axial direction of the pivot shaft,
The first holder part has an inclined surface inclined with respect to the axis of the pivot shaft,
The inclined surface is inclined so that one end side of the pivot shaft approaches the pivot shaft,
The first greasing means has a grease nipple and a greasing hole,
The grease nipple is attached to the inclined surface of the pivot holder,
The greasing hole is formed between the grease nipple and the oil reservoir.

  According to this, since the inclined surface is formed in the pivot holder and the grease nipple is attached to the inclined surface, the amount of the protruding grease nipple from the end of the pivot holder in the axial direction of the pivot shaft is reduced, and The amount of protrusion from the mounting member to the end of the pivot holder is reduced. Thereby, the grease nipple does not interfere with the interlocking mechanism and the wiper arm, and the distance from the attachment member to the interlocking mechanism and the distance from the attachment member to the wiper arm in the axial direction of the pivot shaft can be shortened.

In the wiper device according to the fourth aspect of the invention, the interlocking mechanism comprises a link mechanism having a swinging member,
The swing member has a shaft hole,
When the support shaft attached to the attachment member is inserted into the shaft hole, the swing member is supported swingably on the support shaft,
The supporting shaft is provided with a second grease supplying means for supplying the oil between the inner peripheral surface of the shaft hole and the outer peripheral surface of the supporting shaft from the outside.

  According to this, the link mechanism is actuated by driving the driving device, and the swinging member swings with respect to the support shaft. By supplying oil and fat between the inner peripheral surface of the shaft hole and the outer peripheral surface of the support shaft from the outside by the second greasing means, the frictional resistance of the sliding contact portion between the swing member and the support shaft is suppressed. .

  As described above, according to the present invention, water, dust and the like can be prevented from staying in the holding hole of the pivot holder, and the frictional resistance during operation can be suppressed.

It is a perspective view of the straddle carrier provided with the wiper device in an embodiment of the invention. It is a front view of the operation room of the straddle carrier provided with the wiper device. FIG. 2 is a front view of the entire wiper device. It is sectional drawing of the attaching part of the pivot holder of a wiper apparatus similarly. It is sectional drawing to which a part of FIG. 4 was expanded. It is a front view of the pivot holder of the wiper device. It is a perspective view of the bearing of a wiper apparatus similarly. It is a side view of the attachment part of the rocking | swiveling member of the link mechanism of a wiper apparatus similarly. It is sectional drawing of the attachment part of the rocking | swiveling member of the link mechanism of a wiper apparatus similarly. FIG. 3 is a front view of the swing member of the link mechanism of the wiper device. It is sectional drawing of the attaching part of the pivot holder of the wiper apparatus which showed the comparative example with respect to the wiper apparatus in embodiment of this invention. It is sectional drawing of the attaching part of the pivot holder of the wiper apparatus which showed the comparative example with respect to the wiper apparatus in embodiment of this invention. It is sectional drawing of the attaching part of the conventional wiper apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
As shown in FIG. 1, reference numeral 1 denotes a straddle carrier (an example of a cargo handling vehicle) that can perform a cargo handling operation such as loading and unloading and transporting a container 10 (an example of a load) in a container yard or the like.

  The straddle carrier 1 has a main body portion 2 and bogies 3 provided at a plurality of positions in the front, rear, left and right of the lower portion of the main body portion 2. The main body 2 includes a pair of left and right sill beams 4, a column 5 erected on each end of the sill beam 4, and a plurality of girders 6 provided between the upper ends of the columns 5.

The girder 6 is provided with a spreader device 9 that holds the container 10 via a suspension device 8 so as to be movable up and down. Each bogie 3 has a plurality of traveling wheels 11.
The main body 2 is provided with an operation chamber 14 for operating the straddle carrier 1 and operating the suspension device 8 and the spreader device 9. As shown in FIGS. 1 and 2, the operation chamber 14 includes a pair of front and rear standing wall members 15 (an example of a mounting member), a pair of left and right side wall members 16, a ceiling member 17, and a floor member (not shown). It is a box-like structure having.

  The front standing wall member 15 is provided with a door 19 that can be freely opened and closed. A glass window 20 and rainwater attached to the outer surface of the window 20 are wiped on an outer plate 19a (an example of a mounting member) of the door 19. A wiper device 21 is provided.

The left and right side wall members 16 are provided with glass windows 22.
As shown in FIGS. 3 and 4, the wiper device 21 includes a pair of upper and lower pivot shafts 24 and 25, and a pair of upper and lower pivot shafts 24 and 25 that are attached to the outer plate 19 a of the door 19 and hold the pivot shafts 24 and 25 rotatably. Pivot holders 26, 27, a pair of upper and lower wiper arms 28, 29 provided on each pivot shaft 24, 25, and an electric motor 30 that reciprocally pivots both pivot shafts 24, 25 in the same direction (an example of a driving device). And a link mechanism 31 (an example of an interlocking mechanism) that interlocks and connects the electric motor 30 and the pivot shafts 24 and 25.

First, the configuration of the upper wiper mounting portion 32 will be described below.
As shown in FIGS. 4 to 6, the upper pivot holder 26 includes a holding hole 33 that penetrates into and out of the outer plate 19 a of the door 19, and a first holder portion 34 that protrudes outward (one side) of the outer plate 19 a. And a second holder part 35 projecting inward (the other side) of the outer plate 19a. The first holder portion 34 includes a main body portion 34 a having a truncated cone shape, and a flange portion 34 b that is applied to the outer surface of the outer plate 19 a of the door 19 and is fixed by a plurality of screws and nuts 36. The main body 34 a has an inclined surface 38 that is inclined with respect to the axis 37 of the pivot shaft 24 on the outer peripheral portion. The inclined surface 38 is inclined so that one end side of the pivot shaft 24 approaches the pivot shaft 24. The second holder part 35 has a cylindrical shape and is inserted into an attachment hole formed in the outer plate 19 a of the door 19.

  The pivot shaft 24 is inserted into the holding hole 33 of the pivot holder 26, and one end projects from the holding hole 33 to the outside of the outer plate 19 a of the door 19, and the other end from the holding hole 33 to the inside of the outer plate 19 a. Protruding. One screw part 39 is formed at one end of the pivot shaft 24, and a wiper arm 28 is attached to one end of the pivot shaft 24 by screwing a nut 40 into the one screw part 39. A wiper blade 41 is provided at the tip of the wiper arm 28. The other threaded portion 43 is formed at the other end of the pivot shaft 24.

  The pivot shaft 24 is provided with a pair of movement restricting portions 44 and 45 that rotate together with the pivot shaft 24 and restrict the movement of the pivot shaft 24 in the axial direction A. One movement restricting portion 44 is formed of a disc-shaped flange protruding outward in the radial direction of the pivot shaft 24 outside the holding hole 33, and faces the outer end portion of the pivot holder 26 in the axial direction A. doing.

  The other movement restricting portion 45 has a presser washer 47 fitted on the other screw portion 43 of the pivot shaft 24 and a nut 48 screwed on the other screw portion 43. The presser washer 47 is attached to the pivot shaft 24 by a nut 48, protrudes radially outward of the pivot shaft 24 outside the holding hole 33, and faces the inner end of the pivot holder 26 in the axial direction A. Yes.

  The pivot holder 26 is provided between the movement restricting portions 44 and 45, and a thrust washer 49 is provided between the press washer 47 of the other movement restricting portion 45 and the inner end portion of the pivot holder 26.

  A pair of cylindrical bearings 50 and 51 are provided between the inner peripheral surface of the pivot holder 26 and the outer peripheral surface of the pivot shaft 24. Both bearings 50 and 51 are ferrules (bushes), and are opposed to each other in the axial direction A. Between the bearings 50 and 51 in the holding hole 33, an oil reservoir 52 is formed over the entire circumference. Note that the diameter of the holding hole 33 in the oil reservoir 52 is set to be slightly smaller than the diameter of the holding hole 33 in the portion where the bearings 50 and 51 are inserted.

  The pivot holder 26 is provided with a first greasing means 54 for supplying grease (an example of oil) to the oil reservoir 52 from the outside. The first greasing means 54 has a first grease nipple 55 and a first greasing hole 56. The first grease nipple 55 is attached to the inclined surface 38 of the pivot holder 26 and is positioned below the pivot shafts 24 and 25. The first greasing hole 56 is formed in a straight line in the pivot holder 26 and communicates with the oil reservoir 52 and the first grease nipple 55.

  As shown in FIG. 5 and FIG. 7, one groove for guiding the grease in the oil reservoir 52 between the one movement restricting portion 44 and the outer end portion of the pivot holder 26 is formed on the outer peripheral surface of one bearing 50. 57 is formed. Further, the other groove 58 is formed on the outer peripheral surface of the other bearing 51 to guide the grease in the oil reservoir 52 between the press washer 47 of the other movement restricting portion 45 and the inner end portion of the pivot holder 26. ing.

  The above is the description of the configuration of the upper wiper mounting portion 32, and the configuration of the lower wiper mounting portion 61 shown in FIGS. 2 and 3 is the same as the configuration of the upper wiper mounting portion 32 described above, and thus the description thereof is omitted. To do.

  As shown in FIGS. 2 to 4, the link mechanism 31 includes a crank disk 63 that is rotated in one direction by the electric motor 30, a swing arm 64 and a swing member 65 provided outside the outer plate 19 a of the door 19. An upper swing arm 66 provided at one end of the upper pivot shaft 24, a lower swing arm 67 provided at one end of the lower pivot shaft 25, a crank disc 63, and a swing arm 64 A lateral first coupling rod 69 coupled between the pivoting arm 64 and the pivoting member 65, a lateral second coupling rod 70 coupled between the pivoting arm 64 and the pivoting member 65; A vertical third connection rod 71 connected between the upper swing arm 66 and the lower swing arm 67 and a fourth vertical connection connected between the upper swing arm 66 and the lower swing arm 67. And a ridge 72.

  The first holder portion 34 of the upper pivot holder 26 is located between both the upper wiper arm 28 and the swing arm 66 and the outer plate 19 a of the door 19 in the axial direction A of the upper pivot shaft 24. positioned. Similarly, the first holder portion 34 of the lower pivot holder 26 is located between the lower wiper arm 29 and the swing arm 67 and the outer plate 19 a of the door 19 in the axial direction A of the lower pivot shaft 25. Is located.

The electric motor 30, the crank disk 63, the swing arm 64, and the first connection rod 69 are accommodated in the cover 73.
Next, the mounting structure of the swing member 65 will be described.

  As shown in FIGS. 3 and 8 to 10, the swing member 65 is swingably supported by a support shaft 75 attached and fixed to the outer plate 19 a of the door 19. The swing member 65 has a cylindrical boss portion 77 having a shaft hole 76 and a triangular plate portion 78 provided on the boss portion 77. The end portions of the second and third connecting rods 70 and 71 are connected to the plate portion 78.

  The support shaft 75 has a flange portion 80 at the proximal end portion, a screw portion 81 at the distal end portion, and an insertion portion 82 between the flange portion 80 and the screw portion 81. The insertion portion 82 is inserted into the shaft hole 76 of the swing member 65, the flange portion 80 has a larger diameter than the insertion portion 82, and the screw portion 81 has a smaller diameter than the insertion portion 82.

  The swing member 65 is provided between the flange portion 80 of the support shaft 75 and the nut 83 screwed into the screw portion 81. An annular thrust washer 84 is provided between the flange 80 and the boss 77 and between the nut 83 and the boss 77, respectively.

  A cylindrical bearing 85 is provided between the outer peripheral surface of the insertion portion 82 of the support shaft 75 and the inner peripheral surface of the boss portion 77 of the swing member 65. The bearing 85 is a ferrule (bush), and the insertion portion 82 is in sliding contact with the bearing 85 when the swinging member 65 swings with respect to the support shaft 75.

  A second grease (an example of oil) is supplied from the outside between the inner peripheral surface of the bearing 85 and the outer peripheral surface of the insertion portion 82 (an example between the inner peripheral surface of the shaft hole and the outer peripheral surface of the support shaft). A greasing means 86 is provided on the support shaft 75. The second greasing means 86 has a second grease nipple 87 and a second greasing hole 88. The second grease nipple 87 is attached to the tip of the support shaft 75. The second greasing hole 88 is formed in the support shaft 75, one end communicates with the second grease nipple 87, and the other end is between the outer peripheral surface of the insertion portion 82 and the inner peripheral surface of the bearing 85. Communicate.

Hereinafter, the operation of the above configuration will be described.
As shown in FIG. 1, the container 10 is gripped by the spreader device 9 and lifted by the suspension device 8, and the traveling wheel 11 is rotated to travel the straddle carrier 1 along the traveling path 12, thereby loading and unloading the container 10. And cargo handling work such as transportation.

  As shown in FIG. 2, in the case of rain or the like, by operating the wiper device 21, the pair of upper and lower wiper blades 41 swings back and forth to wipe away rainwater and the like attached to the outer surface of the window 20. That is, as shown in FIG. 3, when the crank disk 63 is rotated in one direction by the electric motor 30, the swing arm 64 and the swing member 65 reciprocally swing, and the first and second connecting rods 69 and 70 swing back and forth in the horizontal direction, and the third and fourth connecting rods 71 and 72 and the upper and lower swing arms 66 and 67 swing back and forth in the vertical direction. 25 reciprocates in the same direction, and the upper and lower wiper arms 28 and 29 swing back and forth around the pivot shafts 24 and 25.

  When the pivot shafts 24 and 25 are reciprocally rotated as described above, the outer peripheral surfaces of the pivot shafts 24 and 25 are in sliding contact with the inner peripheral surfaces of the bearings 50 and 51, as shown in FIGS. The movement washer 44 and the presser washer 47 of the other movement restriction unit 45 reciprocate together with the pivot shafts 24 and 25 to restrict movement of the pivot shafts 24 and 25 in the axial direction A. To do.

  By connecting the grease gun nozzle to the first grease nipple 55 of the first greasing means 54 and supplying the grease to the oil reservoir 52, the grease is filled in the oil reservoir 52. Thereby, since the space of the oil reservoir 52 is filled with grease, it is possible to prevent water and dust from staying in the holding holes 33 of the pivot holders 26 and 27.

  Further, when the grease enters between the outer peripheral surface of each of the pivot shafts 24 and 25 and the inner peripheral surface of the bearings 50 and 51 from the oil reservoir 52, sliding between the respective pivot shafts 24 and 25 and the bearings 50 and 51 occurs. The frictional resistance at the contact portion is suppressed.

  As shown in FIGS. 5 and 7, the grease filled in the oil reservoir 52 passes through one groove 57 of one bearing 50, and the outer end of one movement restricting portion 44 and each pivot holder 26, 27. Therefore, the frictional resistance of the sliding contact portion between one movement restricting portion 44 and the outer end portion of each pivot holder 26, 27 is suppressed.

  Similarly, the grease filled in the oil reservoir 52 passes through the other groove 58 of the other bearing 51 between the press washer 47 of the other movement restricting portion 45 and the inner end of each pivot holder 26, 27. Therefore, the frictional resistance of the sliding contact portion between the presser washer 47 and the inner end portion of each pivot holder 26, 27 is suppressed. Thereby, power loss due to frictional resistance is reduced, and the electric motor 30 can be reduced in size and weight.

  In addition, as shown in FIG. 5, the inclined surfaces 38 are formed on the respective pivot holders 26, 27, and the first grease nipple 55 is attached to the inclined surfaces 38, so that each pivot holder 26, The amount of protrusion B of each first grease nipple 55 from the outer end portion 27 is reduced. Further, the first grease nipple 55 can be prevented from interfering with the flange portions 34b of the pivot holders 26 and 27, and the pivot holders 26 and 27 in the axial direction A from the outer plate 19a of the door 19 can be prevented. The amount of protrusion C to the outer end can be reduced.

  As a result, as shown in FIG. 4, the first grease nipple 55 does not interfere with the wiper arms 28 and 29 and the swinging arms 66 and 67 of the link mechanism 31, and the outer plate of the door 19 in the axial direction A. The distance D1 from 19a to the swing arms 66 and 67 and the distance D2 from the outer plate 19a to the wiper arms 28 and 29 can be shortened.

  As a comparative example, as shown in FIG. 11, when the first grease nipple 55 is attached to the outer end of each pivot holder 26, 27 without forming the inclined surface 38 on each pivot holder 26, 27, There arises a problem that the protruding amount B of each first grease nipple 55 from the outer end of each pivot holder 26, 27 increases. Further, as shown in FIG. 12, when the first grease nipple 55 is attached to the outer peripheral surface of each pivot holder 26, 27 without forming the inclined surface 38 on each pivot holder 26, 27, the first grease nipple. In order to avoid 55 from interfering with the flange portion 34b, there arises a problem that the projection amount C from the outer plate 19a of the door 19 to the outer end portion of each pivot holder 26, 27 in the axial direction A increases.

  Moreover, as shown in FIG. 4, since the load concerning each pivot shaft 24 and 25 is each received by the two bearings 50 and 51, the load load of each bearing 50 and 51 can be reduced.

  Also, as shown in FIGS. 8 and 9, the grease gun nozzle is connected to the second grease nipple 87 of the second greasing means 86, and the grease is inserted into the outer peripheral surface of the insertion portion 82 of the support shaft 75 and the bearing 85. When the swinging member 65 swings with respect to the support shaft 75, the frictional resistance of the sliding contact portion between the bearing 85 and the support shaft 75 is suppressed. As a result, power loss due to frictional resistance is further reduced, and the electric motor 30 can be reduced in size and weight.

  In the above embodiment, as shown in FIGS. 2 and 3, the upper and lower two-stage wiper device 21 is shown, but it may be a three-stage or more multi-stage type or a single-stage type. Further, the wiper device is not limited to a plurality of upper and lower stages, and may be a left and right multiple stages.

  In the above embodiment, the wiper device 21 is provided on the door 19 of the operation chamber 14 of the straddle carrier 1 as shown in FIG. 2, but the present invention is not limited to this. For example, the operation chamber shown in FIG. You may provide in 14 side wall members 16 grade | etc.,. Moreover, you may provide in cargo handling vehicles other than the straddle carrier 1, for example, a transfer crane.

19a Door outer plate (mounting member)
21 Wiper device 24, 25 Pivot shaft 26, 27 Pivot holder 28, 29 Wiper arm 30 Electric motor (drive device)
31 Link mechanism (interlocking mechanism)
33 Holding hole 34 First holder portion 37 Axis center 38 Inclined surfaces 44 and 45 Movement restricting portions 50 and 51 Bearing 52 Oil and fat reservoir portion 54 First greasing means 55 First grease nipple 56 First greasing hole 57 and 58 Groove 65 Oscillating member 75 Support shaft 76 Shaft hole 86 Second greasing means A Axial direction

Claims (4)

A pivot shaft, a pivot holder attached to the mounting member and rotatably holding the pivot shaft, a wiper arm provided on the pivot shaft, a driving device for reciprocatingly rotating the pivot shaft, a driving device, and a pivot shaft A wiper device having an interlocking mechanism for interlockingly connecting the two,
The pivot holder has a holding hole,
The pivot shaft is inserted into the holding hole,
A pair of cylindrical bearings are provided between the inner peripheral surface of the pivot holder and the outer peripheral surface of the pivot shaft,
Both bearings are spaced apart and opposed in the axial direction of the pivot shaft,
An oil reservoir is formed between both bearings in the holding hole,
A wiper device characterized in that the pivot holder is provided with first grease supplying means for supplying oil to the oil reservoir from the outside. The pivot shaft is provided with a pair of movement restricting portions for restricting movement of the pivot shaft in the axial direction,
Each of the movement restricting portions protrudes radially outward of the pivot shaft outside the holding hole and faces the end of the pivot holder in the axial direction.
The pivot holder is provided between both movement restricting parts,
2. The wiper device according to claim 1, wherein a groove is formed on the outer peripheral surface of the bearing to guide the oil in the oil reservoir between the movement restricting portion and the end of the pivot holder. One end of the pivot shaft protrudes outward of the mounting member and the other end protrudes inward,
The wiper arm and the interlocking mechanism are connected to one end of the pivot shaft,
The pivot holder has a first holder portion protruding outward from the mounting member,
The first holder part is located between both the wiper arm and the interlocking mechanism and the mounting member in the axial direction of the pivot shaft,
The first holder part has an inclined surface inclined with respect to the axis of the pivot shaft,
The inclined surface is inclined so that one end side of the pivot shaft approaches the pivot shaft,
The first greasing means has a grease nipple and a greasing hole,
The grease nipple is attached to the inclined surface of the pivot holder,
The wiper device according to claim 1 or 2, wherein the greasing hole is formed between the grease nipple and the oil reservoir. The interlocking mechanism consists of a link mechanism having a swinging member,
The swing member has a shaft hole,
When the support shaft attached to the attachment member is inserted into the shaft hole, the swing member is supported swingably on the support shaft,
A wiper device characterized in that a second grease supplying means for supplying oil and fat between the inner peripheral surface of the shaft hole and the outer peripheral surface of the support shaft is provided on the support shaft.

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