JP5108542B2 - Waterproof cap, wiper pivot, and vehicle wiper device - Google Patents

Description

  The present invention relates to a waterproof cap, a wiper pivot, and a vehicle wiper device.

Conventionally, as a waterproof cap used for a wiper device for vehicles, there is the following, for example (refer to patent documents 1). The waterproof cap described in Patent Document 1 has an umbrella portion on the radially outer side of the cylindrical portion into which the pivot holder is inserted, and receives water that has entered from a pivot hole formed in the vehicle body at the umbrella portion. It is set as the structure drained below from the formed drain hole.
Japanese Patent No. 3934509

  However, the umbrella part in the waterproof cap described in Patent Document 1 is configured to spread around the pivot shaft. For this reason, in the waterproof cap described in Patent Document 1, water that has entered through the pivot hole can be received by the umbrella portion. Waterproofing is not taken into consideration for water that has entered through a gap in the vehicle body located on the outer side in the vehicle width direction with respect to the umbrella portion, such as a gap with the umbrella.

  The present invention has been made in view of the above problems, and an object of the present invention is to waterproof not only the pivot hole but also water that has entered from a place other than the pivot hole.

In order to solve the above-mentioned problem, the waterproof cap according to claim 1 is configured such that a pivot lever is fixed to a proximal end side so as to be integrally rotatable and a wiper arm is fixed to a distal end side, and the pivot shaft is rotated. A waterproof cap provided on a wiper pivot having a pivot holder that can be held, and is formed in a concave shape having an opening toward one axial direction of the pivot shaft, and the axial direction of the pivot shaft with respect to the pivot lever A water receiving portion disposed on one side, a mounting portion formed on the bottom of the water receiving portion and attached to the pivot holder, and one side in a direction intersecting the axial direction of the pivot shaft from the water receiving portion includes an extending portion which extends, and a hanging wall portion extending in the axial direction other side of the pivot axis from the opposite side with respect to the water receiving portion in the extending portion to the The installation portion is configured to cover the pivot lever from one side in the axial direction of the pivot shaft when the pivot lever is rotated to a rotational limit on one side in a direction intersecting the axial direction of the pivot shaft, and the hanging wall The portion is disposed on the opposite side to the water receiving portion with respect to the distal end side of the pivot lever when the portion is rotated to a rotation limit on one side in a direction intersecting the axial direction of the pivot shaft. To do.

  According to the waterproof cap of the first aspect, a concave water receiving portion having an opening toward one side in the axial direction of the pivot shaft is formed around the mounting portion. It arrange | positions at the axial direction one side of the pivot axis with respect to a lever. Therefore, even if water enters from a pivot hole formed on one side in the axial direction with respect to the pivot shaft, the water can be received by the water receiving portion. Thereby, it can prevent that the connection part of a pivot lever and a connection rod etc. get wet with the water which permeated from the pivot hole, for example.

  According to the waterproof cap of the first aspect, the extending portion extends from the water receiving portion to at least one side in the direction intersecting the axial direction of the pivot shaft, and the water receiving portion in the extending portion is provided. A hanging wall portion extends from the opposite side to the other portion to the other axial side of the pivot shaft. Therefore, even when water enters from a place other than the pivot hole, that is, from the clearance of the vehicle body located on at least one side in the direction intersecting the axial direction of the pivot shaft with respect to the water receiving portion, this water reaches the pivot lever. This can be prevented by the extending portion and the hanging wall portion.

Thus, according to the waterproof cap of the first aspect, not only the pivot hole but also water that has entered from a place other than the pivot hole can be waterproofed.
Moreover, even when the pivot lever is rotated to the one rotation limit in the direction intersecting the axial direction of the pivot shaft, the pivot lever is covered from the one axial direction side of the pivot shaft by the extending portion. Therefore, even if the pivot lever is positioned at the rotation limit on one side, the extension portion can prevent the pivot lever from getting wet.
In addition, the drooping wall portion is disposed on the opposite side to the water receiving portion with respect to the distal end side of the pivot lever even when the pivot lever is pivoted to the pivot limit on one side in the direction intersecting the axial direction of the pivot shaft. The Accordingly, while preventing the pivot lever from being hindered by the drooping wall portion, the drooping wall portion can also waterproof the pivot lever.

The waterproof cap according to claim 2 is the waterproof cap according to claim 1, wherein the water receiving portion is rotated to the rotation limit on the other side in the direction intersecting the axial direction of the pivot shaft. the are pivot lever is configured to cover from the axial direction one side of the pivot axis, characterized in that.

According to the waterproof cap of the second aspect, even when the pivot lever is rotated to the rotation limit on the other side in the direction intersecting with the axial direction of the pivot shaft, the pivot lever is supported by the water receiving portion . Covered from one axial side. Accordingly, even if the pivot lever is positioned at the other rotation limit , the water receiving portion can prevent the pivot lever from getting wet.

  In order to solve the above-mentioned problem, the wiper pivot according to claim 3 includes a pivot shaft having a pivot lever fixed to the proximal end side so as to be integrally rotatable and a wiper arm fixed to the distal end side, and the pivot shaft. A pivot holder that is rotatably held, and the waterproof cap according to claim 1 or claim 2.

  According to the wiper pivot of the third aspect, the waterproof cap according to the first or second aspect is provided, so that not only the pivot hole but also water that has entered from a place other than the pivot hole is introduced. Can also be waterproof.

  The wiper pivot according to claim 4 is the wiper pivot according to claim 3, wherein the wiper pivot is disposed on one axial side of the pivot shaft with respect to the pivot lever, and is one side in a direction intersecting the axial direction of the pivot shaft. A stay extending to the vehicle body is provided on the distal end side of the stay, and the waterproof cap is provided between the attachment portion in the longitudinal direction of the stay and a middle portion in the longitudinal direction of the stay. A first waterproof wall portion that is disposed and extends from one axial side to the other side of the pivot shaft, and is disposed between a longitudinal middle portion of the stay in the longitudinal direction of the stay and the pivot lever, and the pivot A second waterproofing wall portion extending from the stay side in the axial direction of the shaft to the other axial direction side of the pivot shaft with respect to the pivot lever. The longitudinal direction intermediate portion, the intermediate waterproof wall portion between the first waterproof wall portion in the longitudinal direction of the stay and the second waterproof wall portion is formed, characterized in that.

  According to the wiper pivot of claim 4, even when water enters the attachment portion that cannot be covered with the waterproof cap in order to secure a space for attachment to the vehicle body, the water is removed from the attachment portion to the first waterproof wall portion. Then, it can be discharged to the other axial side of the pivot shaft with respect to the pivot lever via the intermediate waterproof wall portion and the second waterproof wall portion. As a result, for example, water can be prevented from entering the gap between the pivot shaft and the pivot holder, or the connecting portion between the pivot lever and the connecting rod can be prevented from getting wet.

  A wiper pivot according to a fifth aspect is the wiper pivot according to the fourth aspect, wherein the first waterproof wall portion is formed continuously with the extending portion.

  According to the wiper pivot of the fifth aspect, since the first waterproof wall portion is formed continuously with the extended portion, the gap between the first waterproof wall portion and the extended portion can be eliminated. Thereby, waterproof performance can be improved further.

  The wiper pivot according to claim 6 is the wiper pivot according to claim 4 or 5, wherein the drooping wall portion and the second waterproof wall portion are connected by a connecting wall portion. And

  According to the wiper pivot according to claim 6, not only the drooping wall portion and the second waterproof wall portion but also the drooping wall is able to reach the pivot lever even when water has entered the mounting portion. This can also be prevented by the connecting wall portion formed between the portion and the second waterproof wall portion.

  In order to solve the problem, a vehicle wiper device according to claim 7 includes a wiper motor, a wiper pivot according to any one of claims 3 to 6, and the pivot lever. And a link mechanism for transmitting the rotational driving force of the wiper motor to the pivot shaft.

  According to the wiper device for a vehicle according to claim 7, since the wiper pivot according to any one of claims 3 to 6 is provided, not only the pivot hole but also a place other than the pivot hole. Waterproofing can also be achieved for water that has entered.

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

  FIG. 1A shows a vehicle 100 on which a vehicle wiper device 10 according to an embodiment of the present invention is mounted. FIG. 1B shows an enlarged view of a portion A of the vehicle 100 shown in FIG. 1A. Has been. Further, FIG. 2 shows a portion A of the vehicle 100 shown in FIG. 1B with a part of the cowl louver 102 and the engine hood 104 cut out.

  It should be noted that an arrow FR, an arrow UP, and an arrow OUT shown in these drawings and the following drawings respectively indicate the front side in the front-rear direction, the upper side in the vertical direction, and the outer side in the width direction (right side of the vehicle).

  As shown in FIG. 1A to FIG. 2, a vehicle wiper device 10 according to an embodiment of the present invention is closer to the front side in the vehicle front-rear direction with respect to the lower end portion of the front window glass 108 provided in the vehicle 100. It is arranged at the position. The vehicle wiper device 10 reciprocally rotates the pair of wipers 110 and 112 shown in FIG. 1A. As shown in FIG. 2, the pipe frame 12, the wiper motor 14, the wiper pivot 16, and the link And a mechanism 18.

  The other wiper pivot (not shown) having the same configuration as that of the one wiper pivot 16 is disposed on the opposite side (that is, the center side in the vehicle width direction) between the one wiper pivot 16 and the wiper motor 14. The vehicle wiper device 10 is modularized by including the other wiper pivot (not shown) in the above-described components.

  That is, the wiper motor 14 is fixed to an intermediate portion in the longitudinal direction of the pipe frame 12 via a bracket or the like (not shown). One wiper pivot 16 is fixed to one side in the longitudinal direction of the pipe frame 12 via a frame connecting portion 40 which will be described later, and the other side in the longitudinal direction of the pipe frame 12 via a frame connecting portion (not shown). The other wiper pivot described above is fixed.

  The link mechanism 18 includes a crank arm 20, a first connecting rod 22, a second connecting rod 24, and a pivot lever 26. One end in the longitudinal direction of the crank arm 20 is fixed to the output shaft 28 of the wiper motor 14 so as to be integrally rotatable, and the other end in the longitudinal direction of the crank arm 20 is relative to one end in the longitudinal direction of the first connecting rod 22. It is connected so that it can rotate.

  The other end of the first connecting rod 22 in the longitudinal direction is connected to the distal end side of the pivot lever 26 so as to be relatively rotatable, and the base end side of the pivot lever 26 is provided in one wiper pivot 16 described later. The pivot shaft 30 is fixed to the proximal end side of the pivot shaft 30 so as to be integrally rotatable. Further, one end of the second connecting rod 24 in the longitudinal direction is connected to the distal end side of the pivot lever 26 so as to be relatively rotatable.

  A pivot lever similar to the pivot lever 26 is fixed to the pivot end of the other wiper pivot (not shown) on the base end side so as to be integrally rotatable. The second connecting rod 24 is connected to the other side in the longitudinal direction so as to be relatively rotatable.

  The modular vehicle wiper device 10 is connected to a stay 42 provided on one wiper pivot 16 described later, a similar stay provided on the other wiper pivot (not shown), and a wiper motor 14. The formed stay (not shown) is fixed to the vehicle body of the vehicle 100 at three or more locations.

  In the vehicle wiper device 10, when the wiper motor 14 is operated, the rotational driving force of the wiper motor 14 is transmitted to one pivot shaft 30 and the other pivot shaft (not shown) via the link mechanism 18. A pair of wipers 110 and 112 (see FIG. 1) fixed to the respective distal end sides of the pivot shaft 30 and the other pivot shaft (not shown) so as to be integrally rotatable are reciprocally rotated.

  Here, FIGS. 3 to 5 show in detail the wiper pivot 16 to which one of the pair of wipers 110 and 112 is fixed so as to be integrally rotatable. As shown in these drawings, the wiper pivot 16 includes a pivot shaft 30, a pivot holder 32, and a waterproof cap 34.

  The pivot shaft 30 is inserted into a pivot holder 32 formed in a cylindrical shape, and is rotatably held by the pivot holder 32. As shown in FIG. 5, the pivot shaft 30 and the pivot holder 32 are attached to the vehicle 100 in a state where the pivot shaft 30 and the pivot holder 32 are inclined by a predetermined angle θ toward the front side in the vehicle front-rear direction with respect to the virtual axis L1 extending in the vehicle vertical direction.

  FIG. 6 shows the wiper pivot 16 in detail with the waterproof cap 34 removed. As shown in this figure, the pivot shaft 30 has a screw portion 36 formed on the distal end side and a spline shaft portion 38 formed on the proximal end side with respect to the screw portion 36. A fitting hole (not shown) formed on the base end side of the wiper arm 114 constituting the wiper 110 shown in FIG. 1A is fitted into the spline shaft portion 38, and a screw portion 36 is shown through the fitting hole. The wiper arm 114 is fixed to the pivot shaft 30 so as to be integrally rotatable by screwing a nut that is not to be engaged (see FIG. 1A).

  As shown in FIG. 6, the pivot holder 32 is provided with a frame connecting portion 40 and a stay 42 that extend along a direction orthogonal to the axial direction of the pivot shaft 30. The frame connecting portion 40 is directed from the pivot holder 32 toward the pipe frame 12, that is, in other words, as shown in FIG. 2, the wiper motor 14 side from the pivot holder 32 to the pivot shaft 30 (that is, the vehicle width direction center side). At the arrow X2 side).

  On the other hand, the stay 42 is directed from the pivot holder 32 toward the opposite side of the pipe frame 12, that is, as shown in FIG. 2, the opposite side of the wiper motor 14 from the pivot holder 32 to the pivot shaft 30 (that is, the vehicle). It extends toward the arrow X1 side on the outer side in the width direction.

  Further, as shown in FIG. 6, the stay 42 is arranged on one axial side of the pivot shaft 30 with respect to the pivot lever 26 (arrow Z1 side). Further, as shown in FIG. 6, a mounting portion 44 to the vehicle body made of, for example, a bolt, a rubber bush, a washer or the like is provided on the distal end side of the stay 42, and a longitudinal intermediate portion 42 </ b> A of the stay 42. An intermediate waterproof wall 46 is formed.

  The intermediate waterproof wall 46 protrudes from the axially opposite sides of the pivot shaft 30 of the stay 42 toward the axially opposite sides of the pivot shaft 30, and the longitudinal direction (arrow L direction) of the stay 42 and the pivot shaft It extends along a direction (arrow W direction) orthogonal to 30 axial directions (arrow Z direction).

  7 to 9, the waterproof cap 34 provided on the wiper pivot 16 described above is shown in detail. As shown in these drawings and FIGS. 2 to 5, the waterproof cap 34 includes a water receiving portion 48, a mounting portion 50, an extending portion 52, and a hanging wall portion 54, and the entirety is made of resin. Is formed.

  The water receiving portion 48 is configured to have a bottom portion 56 and a pair of side wall portions 58, 60, and is formed in a concave shape having an opening toward one side (arrow Z1 side) in the axial direction of the pivot shaft 30 described above. Has been. The bottom portion 56 is formed in a planar shape orthogonal to the axial direction of the pivot shaft 30 and extends from the pivot shaft 30 side toward the distal end side of the pivot lever 26 as shown in FIGS. 2 to 4. Has been.

  The pair of side wall portions 58, 60 are formed along the extending direction of the bottom portion 56, and have a taper shape in which the interval between the pair of side wall portions 58, 60 decreases from the pivot shaft 30 side toward the distal end side of the pivot lever 26. Further, the distal end side of the pivot lever 26 in the pair of side wall portions 58 and 60 is opened as a drain port 62.

  Further, the water receiving portion 48 having the bottom portion 56 and the pair of side wall portions 58 and 60 is, as shown in FIGS. 2 to 4, one axial direction side of the pivot shaft 30 with respect to the pivot lever 26 ( Arranged on the arrow Z1 side). Further, the water receiving portion 48 rotates to the rotation limit on the wiper motor 14 side with respect to the pivot shaft 30 (that is, the arrow X2 side at the vehicle width direction center side) as shown by an imaginary line (two-dot chain line) in FIG. In this case, the pivot lever 26 is covered from one side in the axial direction of the pivot shaft 30.

  The mounting portion 50 is formed in a cylindrical shape extending from the bottom portion 56 of the water receiving portion 48 described above to one axial direction side (arrow Z1 side) of the pivot shaft 30. The waterproof cap 34 is attached to the pivot holder 32 by fitting the pivot holder 32 into the attachment portion 50 and attaching the attachment portion 50 to the pivot holder 32.

  As shown in FIG. 2, the extending portion 52 extends from the water receiving portion 48 toward the side opposite to the wiper motor 14 with respect to the pivot shaft 30 (that is, toward the arrow X1 side on the outer side in the vehicle width direction) and pivots. It is formed in a planar shape perpendicular to the axial direction of the shaft 30. As shown in FIG. 2, the extending portion 52 moves the pivot lever 26 when the pivot lever 26 is rotated to the rotation limit opposite to the wiper motor 14 with respect to the pivot shaft 30 in one axial direction of the pivot shaft 30 (arrow Z1 side). It is set as the structure covered from.

  As shown in FIG. 3, the drooping wall portion 54 extends from the edge portion 52 </ b> A on the opposite side (arrow X <b> 1 side) to the water receiving portion 48 in the extending portion 52 to the other axial side (arrow Z <b> 2 side) of the pivot shaft 30. It is extended. As shown in FIG. 2, the drooping wall 54 is pivoted to the pivot limit opposite to the wiper motor 14 with respect to the pivot shaft 30 (that is, the arrow X1 side on the outer side in the vehicle width direction). It arrange | positions with respect to the side at the opposite side (arrow X1 side) with the water receiving part 48. FIG.

  Further, as shown in FIG. 9, the waterproof cap 34 is formed with a first waterproof wall portion 64 and a second waterproof wall portion 66. As shown in FIG. 4, the first waterproof wall portion 64 is disposed between the attachment portion 44 in the longitudinal direction (arrow L direction) of the stay 42 and the longitudinal intermediate portion 42 </ b> A of the stay 42, and pivot shaft 30 extends from one side in the axial direction to the other side (from the arrow Z1 side to the arrow Z2 side). Moreover, this 1st waterproof wall part 64 is formed continuously with the above-mentioned extension part 52, as FIG. 9 shows.

  As shown in FIG. 4, the second waterproof wall 66 is disposed between the longitudinal intermediate portion 42 </ b> A and the pivot lever 26 in the longitudinal direction (arrow L direction) of the stay 42. Further, as shown in FIG. 5, the second waterproof wall portion 66 is configured so that the stay 42 side in the axial direction (arrow Z direction) of the pivot shaft 30 and the other axial side of the pivot shaft 30 with respect to the pivot lever 26 (arrow Z2). Side). Further, as shown in FIG. 9, the second waterproof wall portion 66 is connected to the above-described hanging wall portion 54 via a connecting wall portion 68.

  As shown in FIG. 4, the intermediate waterproof wall portion 46 formed in the longitudinal intermediate portion 42 </ b> A of the above-described stay 42 has the first waterproof wall portion 64 and the first waterproof wall portion 64 in the longitudinal direction (arrow L direction) of the stay 42. It is arranged between the two waterproof walls 66.

  In the above embodiment, the side opposite to the pipe frame 12 with respect to the pivot shaft 30 (in other words, the side opposite to the wiper motor 14 (that is, the arrow X1 side outside in the vehicle width direction)) is the “axial direction of the pivot shaft” in the present invention. Corresponds to “one side in the direction intersecting with”. Further, the pipe frame 12 side with respect to the pivot shaft 30 (in other words, the wiper motor 14 side (that is, the arrow X2 side at the center in the vehicle width direction)) is “the other side in the direction intersecting the axial direction of the pivot shaft” in the present invention. It corresponds to.

  And according to the wiper device 10 for vehicles which consists of the said structure, there exist the following peculiar effects.

  That is, according to the vehicle wiper device 10 according to the embodiment of the present invention, as shown in FIG. 2, around the mounting portion 50 in the waterproof cap 34, one axial direction side of the pivot shaft 30 (arrow Z <b> 1). A concave water receiving portion 48 having an opening toward the side) is formed, and the water receiving portion 48 is disposed on one axial side of the pivot shaft 30 with respect to the pivot lever 26.

  Therefore, even if water enters from a pivot hole 116 formed on one axial side (arrow Z1 side) with respect to the pivot shaft 30 as indicated by an arrow W1 in FIG. 1B, as shown in FIG. Can be received by the water receiver 48. Thereby, it is possible to prevent, for example, the connecting portion between the pivot lever 26 and the first connecting rod 22 or the second connecting rod 24 from being wetted by water that has entered from the pivot hole 116.

  Further, according to the vehicle wiper device 10 according to the embodiment of the present invention, the water receiving portion 48 extends toward the opposite side of the wiper motor 14 with respect to the pivot shaft 30 (that is, the arrow X1 side outside the vehicle width direction). An installation portion 52 is extended, and a hanging wall portion 54 extends from the opposite side (arrow X1 side) of the extension portion 52 to the water receiving portion 48 to the other axial direction side (arrow Z2 side) of the pivot shaft 30. It is installed.

  Therefore, as shown by the arrow W2 in FIGS. 1B and 2, a place other than the pivot hole 116, that is, the joint 118 of the cowl louver 102, the gap 120 between the cowl louver 102 and the engine hood 104, the cowl louver 102 and the front side fender 106 Even when water intrudes from the gap of the vehicle body located on the outer side in the vehicle width direction (arrow X1 side) with respect to the water receiving portion 48, such as the gap 122, the extension portion 52 prevents this water from reaching the pivot lever 26. And can be blocked by the drooping wall 54.

  As described above, according to the vehicle wiper device 10 according to the embodiment of the present invention, not only the pivot hole 116 but also water that has entered from a place other than the pivot hole 116 can be waterproofed.

  Further, according to the vehicle wiper device 10 according to an embodiment of the present invention, the pivot limit or pivot of the pivot lever 26 on the side opposite to the wiper motor 14 with respect to the pivot shaft 30 (that is, the arrow X1 side outside the vehicle width direction). Even when the pivot lever 26 is rotated to the limit of rotation on the wiper motor 14 side with respect to the shaft 30 (that is, the arrow X2 side on the center side in the vehicle width direction), the pivot lever 26 is moved by the extending portion 52 or the water receiving portion 48. Covered from one axial side (arrow Z1 side). Therefore, even if the pivot lever 26 is located at any position in the rotatable range, the extension portion 52 or the water receiving portion 48 can prevent the pivot lever 26 from being wetted.

  Moreover, according to the vehicle wiper device 10 according to the embodiment of the present invention, the drooping wall portion 54 has the pivot lever 26 opposite to the wiper motor 14 with respect to the pivot shaft 30 (that is, the vehicle), as shown in FIG. Even when it is rotated to the rotation limit of the outer side in the width direction (arrow X1 side), it is disposed on the opposite side (arrow X1 side) to the water receiving portion 48 with respect to the distal end side of the pivot lever 26. Therefore, the pivot lever 26 can be waterproofed by the drooping wall portion 54 while preventing the pivot lever 26 from being hindered by the drooping wall portion 54.

  Further, according to the vehicle wiper device 10 according to the embodiment of the present invention, as shown by the arrow W3 in FIG. 3, the mounting portion 44 that cannot be covered with the waterproof cap 34 in order to secure a space for mounting to the vehicle body. 4 and 5, even when water has entered the water, the water is guided from the mounting portion 44 to the second waterproof wall portion 66 through the first waterproof wall portion 64 and the intermediate waterproof wall portion 46. it can.

  Then, the water guided to the second waterproof wall 66 can be discharged to the other axial side of the pivot shaft 30 with respect to the pivot lever 26 (arrow Z2 side) via the second waterproof wall 66. As a result, for example, water enters the gap between the pivot shaft 30 and the pivot holder 32, or the connecting portion between the pivot lever 26 and the first connecting rod 22 or the second connecting rod 24 gets wet. Can be prevented.

  Further, according to the vehicle wiper device 10 according to the embodiment of the present invention, as shown in FIG. 9, the first waterproof wall portion 64 is formed continuously with the extending portion 52. A gap between the waterproof wall portion 64 and the extending portion 52 can be eliminated. Thereby, waterproof performance can be improved further.

  In addition, according to the vehicle wiper device 10 according to the embodiment of the present invention, as shown by the arrow W3 in FIGS. 26 is prevented not only by the hanging wall portion 54 and the second waterproof wall portion 66 but also by the connecting wall portion 68 formed between the hanging wall portion 54 and the second waterproof wall portion 66. Can do.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited above, Of course, it can change and implement variously within the range which does not deviate from the main point. .

  For example, in the above-described embodiment, the mating portion 118 of the cowl louver 102, the gap 120 between the cowl louver 102 and the engine hood 104, and the gap 122 between the cowl louver 102 and the front side fender 106 are opposite to the wiper motor 14 with respect to the water receiving portion 48 (that is, Since it is formed on the outer side in the vehicle width direction on the arrow X1 side), the extending portion 52 is extended from the water receiving portion 48 toward the opposite side of the wiper motor 14 with respect to the pivot shaft 30 (arrow X1 side). However, it may be configured as follows.

  That is, for example, when the mating portion 118 of the cowl louver 102 is formed on the wiper motor 14 side with respect to the water receiving portion 48 (that is, the arrow X2 side at the center in the vehicle width direction), the extending portion 52 is arranged accordingly. You may be extended from the water receiving part 48 toward the wiper motor 14 side (arrow X2 side).

  Further, for example, the mating portion 118 of the cowl louver 102 is on the side opposite to the wiper motor 14 with respect to the water receiving portion 48 (that is, the arrow X1 side on the outer side in the vehicle width direction), and on the wiper motor 14 side with respect to the water receiving portion 48 When the extension portion 52 is formed on the side opposite to the wiper motor 14 from the water receiving portion 48 to the pivot shaft 30 (arrow X1 side), the water receiving portion 48 is formed. To the wiper motor 14 side (arrow X2 side).

  When the extending portion 52 is extended from the water receiving portion 48 toward the wiper motor 14 side (arrow X2 side), the hanging wall portion 54 interferes with the first connecting rod 22 and the second connecting rod 24. It is desirable to form a notch or the like for prevention.

It is a figure showing a vehicle carrying a vehicle wiper device concerning one embodiment of the present invention. It is the A section enlarged view of the vehicle shown by FIG. 1A. It is a figure which shows the A section of the vehicle shown by FIG. 1B in the state where a cowl louver and a part of engine hood were notched. It is a figure which shows the wiper pivot which concerns on one Embodiment of this invention. It is a figure which shows the wiper pivot which concerns on one Embodiment of this invention. It is a figure which shows the wiper pivot which concerns on one Embodiment of this invention. It is a figure which shows the wiper pivot which concerns on one Embodiment of this invention. It is a figure which shows the waterproof cap which concerns on one Embodiment of this invention. It is a figure which shows the waterproof cap which concerns on one Embodiment of this invention. It is a figure which shows the waterproof cap which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Wiper apparatus for vehicles, 12 ... Pipe frame, 14 ... Wiper motor, 16 ... Wiper pivot, 18 ... Link mechanism, 20 ... Crank arm, 22 ... First connecting rod, 24 ... Second connecting rod, 26 ... Pivot lever, 28 ... Output shaft, 30 ... Pivot shaft, 32 ... Pivot holder, 34 ... Waterproof cap, 36 ... Screw portion, 38 ... Spline shaft portion, 40 ... Frame connecting portion, 42 ... Stay, 44 ... Mounting portion, 46 ... Intermediate waterproof Wall part 48 ... Water receiving part 50 ... Mounting part 52 ... Extension part 54 ... Drip wall part 56 ... Bottom part 58,60 ... Side wall part 62 ... Drain port 64 ... First waterproofing wall part 66 ... second waterproof wall, 68 ... connecting wall

Claims (7)

A waterproof cap provided on a wiper pivot having a pivot shaft having a pivot lever fixed to the proximal end side so that the pivot lever can be integrally rotated and a wiper arm fixed to the distal end side, and a pivot holder for rotatably holding the pivot shaft. And
A water receiving portion formed in a concave shape having an opening toward one side in the axial direction of the pivot shaft, and disposed on one side in the axial direction of the pivot shaft with respect to the pivot lever;
A mounting portion formed on the bottom of the water receiving portion and mounted on the pivot holder;
An extending portion extending from the water receiving portion to one side in a direction intersecting the axial direction of the pivot shaft;
A hanging wall portion extending from the opposite side of the extending portion to the water receiving portion to the other axial side of the pivot shaft;
Equipped with a,
The extending portion is configured to cover the pivot lever from one side in the axial direction of the pivot shaft when rotated to the rotational limit on one side in a direction intersecting the axial direction of the pivot shaft,
The drooping wall portion is disposed on the opposite side of the water receiving portion with respect to the distal end side of the pivot lever when the drooping wall portion is rotated to one rotation limit in a direction intersecting the axial direction of the pivot shaft.
A waterproof cap characterized by that . The water receiving portion is configured to cover the pivot lever from the one axial direction side of the pivot shaft when the water receiving portion is rotated to the rotation limit on the other side in the direction intersecting the axial direction of the pivot shaft . ,
The waterproof cap according to claim 1. A pivot shaft having a pivot lever fixed to the base end side so as to be integrally rotatable and a wiper arm fixed to the front end side;
A pivot holder that rotatably holds the pivot shaft;
The waterproof cap according to claim 1 or 2,
Wiper pivot characterized by comprising. The pivot holder is provided with a stay disposed on one side of the pivot shaft with respect to the pivot lever and extending to one side in a direction intersecting the axial direction of the pivot shaft,
A mounting portion to the vehicle body is provided on the tip side of the stay,
The waterproof cap is
A first waterproof wall portion disposed between the attachment portion in the longitudinal direction of the stay and a longitudinal intermediate portion of the stay, and extending from one side of the pivot shaft to the other side in the axial direction;
The stay is disposed between a longitudinal middle portion of the stay in the longitudinal direction of the stay and the pivot lever, and extends from the stay side in the axial direction of the pivot shaft to the other axial direction of the pivot shaft with respect to the pivot lever. Two waterproof walls,
Have
An intermediate waterproof wall portion is formed between the first waterproof wall portion and the second waterproof wall portion in the longitudinal direction of the stay at the intermediate portion in the longitudinal direction of the stay.
The wiper pivot according to claim 3. The first waterproof wall portion is formed continuously with the extended portion,
The wiper pivot according to claim 4. The hanging wall part and the second waterproof wall part are connected by a connecting wall part,
The wiper pivot according to claim 4 or 5, wherein the wiper pivot is provided. A wiper motor,
The wiper pivot according to any one of claims 3 to 6,
A link mechanism that includes the pivot lever and transmits the rotational driving force of the wiper motor to the pivot shaft;
A vehicle wiper device comprising:

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