JP2002370624A - Vehicular wiper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular wiper capable of simplifying a structure of an arm head, easily holding a hose, and even corresponding to an existing arm head. SOLUTION: A though-hole 13b for passing through a screw part 12a of a tip of a wiper pivot shaft 12 is formed in a base end part 13a of the arm head 13, a nut attaching recessed part 13d for positioning a nut 17 with a washer fixing the arm head 13 to the wiper pivot shaft 12 by engaging with the screw part 12a is formed around the through-hole 13b, and a ring member 16 integrally provided with a holding part 16d holding the hose 15 near an base part is fixed to an annular recessed groove 13e of the nut attaching recessed part 13d.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle for holding a washer hose pulled out from a vehicle body near a base end thereof to prevent the hose from jumping up when the wiper body is started up from a wiping state. Regarding the wiper.

[0002]

2. Description of the Related Art Conventionally, for example, a wiper for wiping the surface of a front window is rotatably mounted in front of a vehicle, and a washer liquid (cleaning liquid) is blown from the wiper at the time of rotation. There is known a so-called built-in wiper nozzle wiper in which a washer liquid is evenly distributed over the wiping surface (see, for example, JP-A-10-167018).

FIG. 7 shows an example of such a wiper nozzle built-in wiper (the overall view of the wiper is omitted). Reference numeral 1 denotes an arm head that covers the wiper pivot shaft 2. A retainer 3 (wiper arm) that supports a wiper blade (not shown) is attached to the tip of the arm head 1.

The retainer 3 is provided with a washer nozzle (not shown) for injecting a washer liquid, and a hose 4 connected to the washer nozzle is provided along the arm head 1 and the retainer 3. .

[0005] On the side surface of the arm head 1, a wiring hole 6 formed integrally with the arm head 1 in a direction parallel to the direction in which the arm head 1 extends and having a wiring hole 5 through which a part of the base 4 a of the hose 4 penetrates is formed. Are formed integrally with the arm head 1.

[0006] The hose 4 has a tip on the side of the washer nozzle inserted into the wiring hole 5 from the inlet side hole 5a, and extends from the outlet hole 5b toward the retainer 3 so as to be parallel to the extending direction of the arm head 1. Will be retained.

The arm head 1 is provided with a hose 4 at a position closer to the wiper pivot shaft 2 than the entrance hole 5a of the wiring hole 6.
A hose restricting portion 8 having a restricting hole 7 for penetrating the base side further than the wiring hole 5 and restricting the direction of the hose 4 is provided integrally.

The base 4b of the hose 4 is connected to a nozzle 10a of a joint member 10 provided on the vehicle body 9.

[0009]

By the way, in the vehicle wiper configured as described above, the arm head 1 is provided.
Since the wiring hole 6 is formed integrally with the hose 4, the structure is complicated, the molding die and the like are complicated, the cost rises, and the hose 4 is formed.
However, there is a problem that it takes time and effort to penetrate the wiring hole 5 of the cable.

According to the present invention, in order to solve the above-mentioned problems, the structure of the arm head can be simplified, the hose can be easily held, and it is possible to cope with the existing arm head. It is an object of the present invention to provide a vehicle wiper that can perform the operation.

[0011]

According to one aspect of the present invention, there is provided a vehicle wiper having a through hole formed at a base end of a wiper arm head and through which a distal end thread portion of a wiper pivot shaft passes. And a recess formed around the through hole and in which a nut for fixing the wiper arm head to the wiper pivot shaft by screwing with the tip screw portion is located, and the recess is fixed to a seating surface of the recess. The invention further comprises a ring member integrally provided with a holding portion for holding the base of the washer hose near the base outside the concave portion.

A vehicle wiper according to a second aspect of the invention is characterized in that the ring member is integrally formed with a play preventing claw that engages with the nut.

According to a third aspect of the present invention, there is provided a wiper for a vehicle, wherein a fixed claw that bites into an inner wall surface of the concave portion is formed integrally with the ring member.

According to a fourth aspect of the present invention, in the vehicle wiper, a plurality of positioning claws are formed integrally with the ring member, and a plurality of engaging claws can be engaged with the engaging claws at a base end of the arm head. The gist is that the positioning concave portion is formed.

A wiper for a vehicle according to a fifth aspect of the present invention has a through hole formed at a base end of a wiper arm head and through which a tip screw portion of a wiper pivot shaft passes, and the tip formed around the through hole. A recess in which a nut for fixing the wiper arm head to the wiper pivot shaft by being screwed with a screw portion is engaged with the recess so as to cover the nut, and the base of the washer hose is located outside the recess near the recess; And a cap member integrally provided with a holding portion for holding the holding member.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a vehicle wiper according to the present invention will be described with reference to the drawings.

(First Embodiment) FIGS. 1 to 4 show a vehicle wiper according to a first embodiment of the present invention. In FIG. 1, a vehicle wiper 11 (an overall view is omitted) includes an arm head 13 pivotally supported by a wiper pivot shaft 12, and a retainer 14 attached to a tip of the arm head 13 and supporting a wiper blade (not shown). Wiper arm)
And a hose 1 for supplying a washer liquid to be sprayed from a washer nozzle (not shown) provided in the retainer 14.
5, a ring member 16 fixed coaxially to the base end 13a of the arm head 13 and the wiper pivot shaft 12, and threadedly engaged with the screw portion 12a of the wiper pivot shaft 12 while penetrating the base end 13a. A nut 17 with a washer for fixing the arm head 13 (vehicle wiper 11) to the wiper pivot shaft 12 is provided.

The wiper pivot shaft 12 is linked to an output shaft protruding from a motor body (both not shown) fixed to the vehicle body via a link mechanism (both not shown). Is formed, and a screw portion 12a is formed at the tip of the engaging tooth portion 12b. Also,
The base (not shown) of the wiper pivot shaft 12 allows the vehicle wiper 11 to rotate by a known configuration.

As shown in FIG. 2, the base end 13a of the arm head 13 has a through hole 13b through which the screw portion 12a passes.
Are formed. Further, on the lower side in the drawing of the through hole 13b, the wiper pivot shaft 12 is engaged with the engagement tooth portion 12b.
An umbrella tooth-shaped hole 13c that meshes with each other is formed so that the arm head 13 cannot rotate relative to the arm head. Further, a nut mounting recess 13d is formed on the upper side of the through hole 13b in the figure (on the front side of the vehicle body). An annular groove 13e coaxial with the through hole 13b is formed on the bottom surface of the nut mounting recess 13b. Also, nut mounting recess 1
A plurality of engagement recesses 13f are formed around the open end of 3b. The engagement recess 13f has a certain width and is formed substantially radially with reference to the through hole 13b.

As shown in FIG. 3, the ring member 16 has a ring portion 16a formed in a substantially annular shape and installed in the annular groove 13e, and a plurality of ring members 16 raised from the inner edge of the ring portion 16a. In this case, the rattle preventing claw 16b, the positioning engagement claw 16c raised from the outer edge of the ring portion 16a, and the holding portion 16d protruding from the outer edge of the ring portion 16a are provided. Are integrally formed.

The nut 17 with a washer includes a nut portion 17a and a washer portion 17b. The diameter of the washer 17b is set smaller than the opening diameter of the nut mounting recess 13b and larger than the inner diameter of the ring 16a.

In the above configuration, the ring member 16 is
As shown in FIG. 4, the ring portion 16a is inserted from the open end of the nut mounting concave portion 13b, the ring portion 16a is located in the annular concave groove 13e, and the engaging claw 16c is optional (depending on the vehicle type, the extending direction of the hose 15, and the like). The ring portion 16a is fixed by an adhesive (not shown) provided in the annular groove 13e in a state where the ring portion 16a is engaged with the engaging concave portion 13f (selection).

From this state, after the screw portion 12a and the engagement tooth portion 12b of the wiper pivot shaft 12 are inserted into the through hole 13b and the engagement position between the engagement tooth portion 12b and the beveled hole 13c is adjusted, Nut part 17 of nut 17 with washer
a is screwed into the screw portion 12a.

At this time, as shown in FIG.
The nut 17 with the washer is tightened in a state where the nut comes into contact with the tip of the play preventing claw 16b. Therefore, the ring member 16 is fixed without play in the annular concave groove 13e. Since the ring member 16 can be fixed by the nut 17 with the washer, the above-mentioned adhesive does not have to be used.

However, the vehicle wiper 11 is used alone (the wiper pivot shaft 12, the hose 15, and the nut 17 with washer).
(In a state where there is no), when the vehicle is carried into a vehicle body assembly line or the like, the ease of carrying the vehicle or assembling the vehicle body on the vehicle assembly line is improved.
Is preferably fixed.

On the other hand, if the arm head 13 is fixed to the wiper pivot shaft 12 by the nut 17 with the washer, both ends of the hose 15 are connected to the washer tank on the vehicle body side (for example, a member corresponding to the nozzle 10a shown in the prior art).
And a washer nozzle provided in the retainer 14 (both or one of them may be connected in advance), and the tip of the hose 15 is held by the holding portion 16d (FIG. 3B). This prevents the hose 15 from rising and deforming when the vehicle wiper 11 is started up.

(Embodiment 2) FIG. 5 shows a vehicle wiper 21 according to Embodiment 2 of the present invention. In addition, the ring member 2
Configurations other than 6 are the same as those in the first embodiment, and thus are denoted by the same reference numerals and description thereof will be omitted.

The ring member 26 is formed in a substantially annular shape and is provided in the annular groove 13e. A prevention claw 26b, a positioning engagement claw 26c raised from an outer edge of the ring portion 26a,
The holding portion 2 protruding from the outer edge of the ring portion 26a
6d and a fixed claw 26e whose tip protrudes radially from the outer edge of the ring portion 26a (in the illustrated example, at a trisecting point shifted from the anti-rattle claw 26b) and has a sharp (tapered) tip are integrally formed. .

In such a configuration, the ring member 2
6 is inserted from the open end of the nut mounting recess 13b,
The ring 26a is located in the annular groove 13e while the fixing claw 26e bites into the inner wall surface of the nut mounting recess 13b, and the engaging claw 26c is optional (selected according to the type of vehicle and the extension direction of the hose 15). The ring portion 26a is fixed while being engaged with the engagement recess 13f.

Therefore, the ring member 26 can be attached to the nut mounting recess 1 without using the adhesive described in the first embodiment.
3b, the vehicle wiper 21 is easily carried into a vehicle body assembly line or the like by itself (without the wiper pivot shaft 12, the hose 15, and the nut 17 with the washer), or is easily assembled to the vehicle body on the assembly line. Is improved.

From this state, after the screw portion 12a and the engagement tooth portion 12b of the wiper pivot shaft 12 are inserted into the through hole 13b and the engagement position between the engagement tooth portion 12b and the beveled tooth hole 13c is adjusted, Nut part 17 of nut 17 with washer
a is screwed into the screw portion 12a, and the washer nut 17 is tightened in a state where the washer portion 17b is in contact with the tip of the play preventing claw 26b.

On the other hand, if the arm head 13 is fixed to the wiper pivot shaft 12 by the nut 17 with the washer, both ends of the hose 15 are connected to the washer tank on the vehicle body side (for example, a member corresponding to the nozzle 10a shown in the prior art).
And the washer nozzle provided on the retainer 14 (both or either of them may be connected first in advance), and the tip of the hose 15 is held by the holding portion 26d to thereby control the wiper 21 for the vehicle. The rising and deformation of the hose 15 when the hose is started is prevented.

(Embodiment 3) FIG. 6 shows a vehicle wiper 31 according to Embodiment 3 of the present invention. It is to be noted that the same components as those of the above-described embodiments are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 6, a vehicle wiper 31 (not shown) supports an arm head 33 supported by the wiper pivot shaft 12 and a wiper blade (not shown) attached to the tip of the arm head 33. Retainer 1
4 (wiper arm); a hose 15 for supplying a washer liquid to be sprayed from a washer nozzle (not shown) provided on the retainer 14; a cap 36 fixed to a base end 33a of the arm head 33; The arm head 33 is screwed with the screw portion 12a of the wiper pivot shaft 12 while passing through the portion 33a.
(Vehicle wiper 31).

The base end 33a of the arm head 33 is formed with a through hole 33b through which the screw portion 12a passes.
On the upper side of the through hole 33b in the figure (on the front side of the vehicle body),
A nut mounting recess 33d is formed. An annular concave groove 33e coaxial with the through hole 33b is formed on the bottom surface of the nut mounting concave portion 33b.

The cap 36 is formed by engaging a dome-shaped cap portion 36a that covers the nut portion 17a of the nut 17 with washer and a washer portion 17b protruding from the opening edge of the cap portion 36a. An engaging claw 36b for holding the cap 36 on the washered nut 17, and a holding portion 3 protruding and extending from the outer peripheral wall surface of the cap portion 36a
6c are integrally formed.

In the above configuration, the screw portion 12a and the engagement tooth portion 12b of the wiper pivot shaft 12 are
3b, and at the same time, the engagement tooth portion 12b and the beveled tooth hole 33 are inserted.
After adjusting the position of engagement with c, the nut portion 17a of the nut 17 with washer is screwed into the screw portion 12a to fix the arm head 33 to the wiper pivot shaft 12.

Next, the cap 36 is connected to the nut mounting recess 3.
3b from the open end, and engage the engaging claw 36b with the washer 17
b, the cap 36 is held by the nut 17 with washer. At this time, the tip of the engagement claw 36b is formed in the annular groove 33e.
Face to.

From this state, both ends of the hose 15 are connected to the washer tank side of the vehicle body (for example, a member corresponding to the nozzle 10a shown in the prior art) and the washer nozzle provided in the retainer 14 (both or both are connected in advance). After either of them may be connected first), lifting and deformation of the hose 15 when the vehicle wiper 31 is started up is prevented by holding the tip of the hose 15 on the holding portion 36d.

[0040]

As described above, in the vehicle wiper according to the first aspect, a through-hole formed at the base end of the wiper arm head and through which the tip screw portion of the wiper pivot shaft penetrates is provided. A recess formed around the through hole and in which a nut for fixing the wiper arm head to the wiper pivot shaft by screwing with the tip screw portion is located;
A ring member fixed to the seat surface of the concave portion and integrally provided with a holding portion for holding the base of the washer hose outside the concave portion, whereby the structure of the arm head can be simplified, and Not only can be easily held, but also can be applied to an existing arm head.

In the vehicle wiper according to the second aspect, the ring member is formed integrally with the rattle preventing claw which engages with the nut, so that the ring member can be fixed only by the operation of fixing the wiper with the existing nut. Can be simultaneously fixed to the arm head.

In the vehicle wiper according to the third aspect of the present invention, the fixed claw that bites into the inner wall surface of the concave portion is formed integrally with the ring member, so that a separate fixing means such as an adhesive is not used. The ring member can be fixed to the arm head before fixing the nut.

According to a fourth aspect of the present invention, in the vehicle wiper, a positioning engaging claw is integrally formed on the ring member, and a plurality of positioning recesses engageable with the engaging claw are provided at a base end of the arm head. Is formed, the hose can be held at an angle corresponding to the vehicle type and the hose extending direction.

According to a fifth aspect of the present invention, there is provided a vehicle wiper having a through hole formed at a base end portion of a wiper arm head and through which a tip screw portion of a wiper pivot shaft passes, and a tip screw portion formed around the through hole. The nut that secures the wiper arm head to the wiper pivot shaft by screwing with the nut, and the holding part that engages with the depression so as to cover the nut and that holds the base of the washer hose near the outside of the depression. With the provision of the cap member provided in the above, the structure of the arm head can be simplified, and the hose can not only be easily held, but also compatible with the existing arm head. be able to.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part of a vehicle wiper according to a first embodiment of the present invention before the vehicle wiper is assembled to a vehicle body.

FIG. 2 is an enlarged cross-sectional view of a main part.

FIG. 3A is a plan view of a ring member, and FIG.
Is a front view of the ring member, (C) is a bottom view of the ring member,
(D) is a side view of the ring member.

FIG. 4 is an exploded perspective view of a main part of the vehicle wiper before the vehicle body is assembled, with the ring member mounted on the arm head.

FIG. 5 is an exploded perspective view of a vehicle wiper according to a second embodiment of the present invention, showing a main part of the vehicle wiper.

FIG. 6 is an exploded perspective view of a main part of a vehicle wiper according to a third embodiment of the present invention.

7A and 7B show a conventional vehicle wiper, in which FIG. 7A is a perspective view of a main part of the vehicle wiper in a state where the vehicle wiper is assembled, and FIG. 7B is a cross-sectional view of the main part taken along line AA in FIG. FIG. 7C is a cross-sectional view of a main part taken along line BB of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Wiper for vehicles 12 ... Wiper pivot shaft 12a ... Thread part (tip screw part) 13 ... Arm head (wiper arm head) 13a ... Base end part 13b ... Through-hole 13d ... Nut mounting concave part (recess part) 13e ... annular concave part Groove (seat surface) 13f ... engagement recess 15 ... hose (washer hose) 16 ... ring member 16b ... rattle prevention claw 16c ... engagement claw 16d ... holding part 17 ... nut with washer (nut)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hirofumi Kondo 2nd Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa F-term in Nissan Motor Co., Ltd. (reference) 3D025 AA01 AF23

Claims (5)

[Claims] 1. A through hole formed at a base end of a wiper arm head and through which a tip screw portion of a wiper pivot shaft penetrates, and formed around the through hole and screwed with the tip screw portion. A ring member integrally provided with a concave portion in which a nut for fixing the wiper arm head is fixed to a wiper pivot shaft, and a holding portion fixed to a seating surface of the concave portion and holding a base of the washer hose outside the concave portion, A vehicle wiper comprising: 2. The vehicle wiper according to claim 1, wherein a play preventing claw engaging with the nut is integrally formed with the ring member. 3. The wiper for a vehicle according to claim 1, wherein a fixed claw that bites into an inner wall surface of the recess is formed integrally with the ring member. 4. A positioning claw for positioning is integrally formed on said ring member, and a plurality of positioning recesses which can be engaged with said claw are formed at a base end of said arm head. The vehicle wiper according to any one of claims 1 to 3, wherein: 5. A through hole formed at a base end portion of a wiper arm head and through which a tip screw portion of a wiper pivot shaft penetrates, and formed around said through hole and screwed with said tip screw portion. A concave portion in which a nut for fixing the wiper arm head is located on the wiper pivot shaft, and a holding portion that engages with the concave portion so as to cover the nut and that holds the base of the washer hose outside the concave portion are integrally provided. A vehicle wiper comprising: a cap member;