JP2002067886A - Wiper with washer nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiper with a washer nozzle capable of improving working property of hose arrangement. SOLUTION: An arm cover 16 is comprised of an arm head main body 22 and a resin head cover 24 and a holder 32 is on a side wall part 24A of the head cover 24 as one body. The holder 32 is rotatable around one end part 32A and clamps a hose 36 at a middle part 32B by elastically engaging an engagement claw 44 formed on another end part 32C with an engagement projection 46. Consequently it is not necessary to put a tip of the hose 36 through a hose arrangement hole as conventional process in arranging the hose 36 and working property of arranging the hose 36 is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a wiper with a washer nozzle for wiping a windshield glass or the like of a vehicle.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a wiper device in which a washer nozzle is attached to a wiper arm or a wiper blade in order to reliably jet a cleaning liquid onto a proper position on a wiping surface (Japanese Utility Model Laid-Open No. Hei 5-16521). And JP-A-10-167018). Hereinafter, the two examples of the wiper with a washer nozzle will be discussed.

In the wiper with a washer nozzle disclosed in the former publication, the tip of the washer nozzle is arranged at the tip of the wiper arm. A hose is connected to the washer nozzle, and the hose is further connected to a washer pump. In the wiper with a washer nozzle, a tunnel portion is provided on one side wall of the arm head to route the hose, and the hose is passed through the tunnel portion and then fixed with a clip.

[0004] The wiper with a washer nozzle disclosed in the latter publication has basically the same structure as the wiper with a washer nozzle disclosed in the former publication, and is arranged on a side wall of the arm head corresponding to a tunnel portion. A cable hole is formed. However, with the latter wiper with washer nozzle,
Not only the routing hole is formed, but also a hose restricting portion that regulates the direction of the hose and the like is formed integrally with the routing hole. Thus, the clip of another part used in the former wiper with a washer nozzle is to be eliminated.

[0005]

However, in any of the wipers with a washer nozzle disclosed in the above two publications, the hose is routed through the tip of the hose to a tunnel portion or a routing hole portion. Will be. Therefore, the work of arranging the hose becomes complicated, and the workability of arranging the hose is reduced.

Further, after the end of the hose is connected to the joint to the washer pump and the washer nozzle first, the hose cannot be inserted into the tunnel or the wiring hole. Accordingly, the hose is first routed through the tunnel portion or the routing hole portion, and then the hose is routed. As a result, the procedure for arranging the hose is regulated, and this also causes a decrease in the operability of the hose.

Further, since the hose is only inserted through a routing hole such as a tunnel portion or a routing hole portion, it is necessary to use another component such as a clip for fixing the hose. Therefore, not only the number of parts is increased, but also the number of assembling steps is increased. In this respect as well, the workability of hose routing is reduced.

In view of the above, an object of the present invention is to provide a wiper with a washer nozzle capable of improving the workability of hose arrangement.

[0009]

According to a first aspect of the present invention, there is provided a wiper with a washer nozzle, an arm head body having one end fixed to a wiper pivot shaft, and an arm head body mounted on the arm head body to cover a surface thereof. A head cover made of a resin constituting the arm head, and a retainer pivotally supported rotatably in the direction of the wiping surface with respect to the arm head, and a wiper blade for wiping the wiping surface is connected to the tip end. A washer nozzle, a washer nozzle provided on the wiper arm or the wiper blade, for injecting a washer liquid onto the wiping surface, a washer arranged along the arm head and the retainer, and connected to the washer nozzle. A hose for supplying a liquid, and a wiper with a washer nozzle, One end part integrally connected to the head cover to form a hinge part, the other end part fixed to the head cover or the arm head body to form a fixed part, and the one end part formed in a belt shape and And a middle part that holds the hose between the other end and the surface of the head cover.

According to the first aspect of the present invention, since the hose holding portion is integrally provided on the resin head cover, the hose can be held by the hose holding portion in the following manner. First, the hose holder is rotated around one end thereof to open the hose holder. At this time, one end of the hose holding portion functions as a hinge. Next, the hose is placed in the hose holding part, and the hose holding part is rotated around one end again to close the hose holding part. When the hose holding part is closed, the fixing part formed at the other end is fixed to the head cover or the arm head main body. Thus, the hose is held between the intermediate portion of the hose holding portion and the surface of the head cover.

As described above, according to the present invention, it is not necessary to pass the end of the hose through a narrow wiring hole such as a tunnel portion or a wiring hole portion as in the related art. As a result, according to the present invention,
The workability of hose arrangement can be improved.

Further, in the case of the present invention, it is not necessary to pass the end of the hose through the narrow wiring hole unlike the conventional case, so that the procedure for laying the hose is not restricted. For example, one end of the hose may be first connected to the washer nozzle, and the other end of the hose may be connected to the washer liquid supply side, and then the intermediate portion of the hose may be held by the hose holding portion. For this reason, the degree of freedom of the hose routing work procedure can be increased. Therefore, the workability of arranging the hose can be further improved.

Further, the hose holding portion is connected by a hinge portion integrally formed with flexibility to the resin head cover, and the hose is held by the hose holding portion. There is no need to separately secure the hose using clips or the like. Therefore, not only can the number of parts be reduced, but also the number of assembly steps can be reduced. As a result, the workability of arranging the hose can be further improved.

According to a second aspect of the present invention, in the wiper with a washer nozzle according to the first aspect, the intermediate portion is formed as a curved portion bulging outward.

According to the second aspect of the present invention, since the intermediate portion of the hose holding portion is formed as a curved portion bulging outward, the hose is held between the intermediate portion and the surface of the head cover. Space is secured. Therefore, even if the other end of the hose holding portion is fixed to the head cover or the arm head main body, the hose is not crushed at the intermediate portion of the hose holding portion and the diameter is not reduced. That is, according to the present invention, it is possible to prevent the hose from being unnecessarily crushed by the intermediate portion of the hose holding portion and becoming a supply resistance of the washer liquid.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] A first embodiment of a wiper with a washer nozzle according to the present invention will be described below with reference to FIGS.

FIG. 2 is a plan view showing the overall configuration of the wiper 10 with a washer nozzle according to the present embodiment. FIG. 1 shows the wiper 1 with the washer nozzle.
0 is shown in a longitudinal sectional view and a side view.

As shown in FIG. 2, the wiper with wiper nozzle 10 includes a wiper arm 12 and a wiper blade 1.
4 is included.

The wiper arm 12 includes an arm head 16,
It is composed of a retainer 18 and an arm piece 20, and is configured to be long as a whole. Also,
As shown in FIG. 1, the arm head 16 of this embodiment
Is composed of an elongated arm head body 22 and a head cover 24 having a U-shaped cross section that covers the surface of the arm head body 22.

The base end of the arm head body 22 is fixed to a pivot shaft 26 (see FIG. 2) provided on the vehicle body, and is always rotated integrally with the pivot shaft 26. A base end of the retainer 18 is connected to a front end of the arm head main body 22 via a support shaft 28. Thus, the retainer 18 is rotatable about the support shaft 28 by a predetermined angle in a direction approaching and separating from the windshield glass (wiping surface).

A tension coil spring 30 (see FIG. 1C) is stretched between the retainer 18 and the arm head 16. When the urging force of the tension coil spring 30 acts, the retainer 18 is urged toward the windshield glass, which is the wiping surface.

A base end of an arm piece 20 that constitutes the wiper arm 12 together with the retainer 18 is fixed to a distal end of the retainer 18. The tip of the arm piece 20 is bent into a substantially U-shape in side view to form a hook, and the wiper blade 14 is connected and held via a clip member (not shown).

Here, as shown in FIG.
The head cover 24 constituting a part of the arm head 16 is made of resin, and one side wall portion 24A has U
A holder 32 as a “hose holding part” functioning as a letter-shaped clamp is integrally formed.

More specifically, the holder 32 is formed in a band shape as a whole, and one end 32A thereof is integrally connected to one side wall 24A. The connection portion of the one end portion 32A to the side wall portion 24A is thinned at the time of resin molding, functions as a hinge portion (integral hinge), and the holder 32 extending in a band shape from the resin head cover 24 is formed by the hinge portion. The other end 32C is connected as an integral member so that it can be opened and closed. In addition, one end 32A
The method of reducing the thickness may be a method using a mold shape, a method of reducing the thickness with a laser beam after molding, and various methods are applicable.

The intermediate portion 32B of the holder 32 has a curved shape bulging outward, whereby the intermediate portion 32B and one side wall portion 24 of the head cover 24 are formed.
A holding space 38 capable of clamping a hose 36 to be described later is formed between the holding space 38 and A. Further, FIG. 1 (A),
As shown in (B), the other end 32C of the holder 32 is formed in a hook shape, and an engaging claw 44 is integrally formed at the inner end thereof. The engaging claw 44 can be elastically engaged (fixed) with an engaging protrusion 46 formed at the lower end of the one side wall 24A of the head cover 24, and is provided on one side wall 24A of the holder 32. Constitutes a fixing part for the

One end of the hose 36 is connected to a washer nozzle 40 (see FIG. 2). The other end of the hose 36 is connected to a hose connection portion 42 provided near the pivot shaft 26. In addition, the hose connection part 42 is connected to a washer tank (not shown) provided in the vehicle body via a washer pump.
Further, the middle part of the hose 36 is connected to the middle part 3 of the holder 32.
After being routed outside the one side wall portion 24A of the head cover 24 while being sandwiched by 2B, the head cover 24 is routed along the retainer 18 through the tension coil spring 30 and then to the washer nozzle 40 as described above. It is connected.

Next, the operation and effect of this embodiment will be described.

The wiper 10 with a washer nozzle having the above-described structure.
Then, the routing work of the hose 36 can be performed as follows.

The hose 36 is pulled and the coil spring 30 is pulled.
If a routing route for passing through the inside is adopted, the hose 36 is inserted into the tension coil spring 30 in advance. Next, one end of the hose 36 is connected to the washer nozzle 40, and the other end of the hose 36 is connected to a hose connection portion 42 provided near the pivot shaft 26. Thereafter, the intermediate portion of the hose 36 is clamped (clamped) using the holder 32 formed integrally with the one side wall portion 24A of the resin head cover 24.

More specifically, first, as shown in FIG. 1A, the holder 32 is opened by rotating it around one end (hinge part) 32A. And in this state, hose 3
The intermediate portion of No. 6 extends along one side wall portion 24A of the head cover 24. Next, the holder 32 is rotated in the direction indicated by the arrow in FIG. 1A, and the engaging claw 44 formed on the other end 32C of the holder 32 is engaged with the one side wall 24A of the head cover 24. The projections 46 are elastically engaged. As a result, as shown in FIG.
2C is fixed to one side wall 24A of the head cover 24. In the state after the fixing, the middle portion of the hose 36 is firmly clamped (held) in the holding space 38 formed between the middle portion 32B of the holder 32 and one side wall portion 24A of the head cover 24. Therefore, after the hose 36 is attached to the holder 32, there is no possibility that the hose 36 will be detached from the head cover 24 due to input of vibration of the vehicle body or external force.

In the case where a wiring route is adopted in which the hose 36 does not pass through the tension coil spring 30, one end of the hose 36 is connected to the washer nozzle 40 after subassembly of the wiper arm 12, and then the hose 36 is connected.
May be held on one side wall portion 24A of the head cover 24 by the holder 32, and finally, the other end of the hose 36 is connected to the hose connection portion 42.

The procedure for assembling the hose 36 in the above two examples is merely an example.
6 can be fixed to the arm head 16.

When the operation of the wiper 10 with a washer nozzle having the above structure is briefly described, when the pivot shaft 26 rotates in a predetermined direction around its axis, the wiper arm 12 and the wiper blade 14 reciprocate with the rotation. . As a result, raindrops and the like on the windshield glass surface are wiped off. Further, in the wiper 10 with a washer nozzle, since the washer nozzle 40 is provided at an intermediate portion of the arm piece 20 constituting a part of the wiper arm 12, even if the wiping range of the wiper blade 14 is large, the washer nozzle 40 The washer liquid ejected from the nozzle can be surely landed on the target point to be wiped by the wiper blade 14.

As described above, in this embodiment, the head cover 24 of the arm head 16 is made of resin, and the openable and closable holder 32 is integrally formed outside the one side wall 24A of the head cover 24. The opening / closing operation of the hose 36 allows the intermediate portion of the hose 36 to be easily clamped (nipped), thereby improving the workability of arranging the hose 36. That is, in the conventional structure, it was necessary to pass one end (tip) of the hose through the wiring hole corresponding to the hose holding portion in advance, but in the wiper 10 with the washer nozzle according to the present embodiment, one end ( Since the work of passing the tip) through the routing hole is eliminated,
The workability of arranging the hose 36 can be improved.

Further, in this embodiment, since the hose 36 can be assembled to the head cover 24 of the arm head 16 by various assembling procedures, the degree of freedom of the assembling procedure of the hose 36 can be increased. In other words, in the conventional structure, it is necessary to pass one end (tip) of the hose through the wiring hole, so that the procedure for assembling the hose is also restricted. However, according to the present embodiment, the hose 36 is attached to the head cover 24. Since the configuration is such that the outer side surface of the one side wall portion 24A is nipped and fixed by the holder 32, the regulation of the hose assembly procedure is eased. Therefore, also from this point, the workability of arranging the hose 36 can be further improved.

In addition, in the present embodiment, the holder 32 for holding and fixing the intermediate portion of the hose 36 is integrally formed with a hinge function by using the head cover 24 made of resin. It is not necessary to fix the hose separately using a clip or the like of a different part as in the above. Therefore, not only the number of parts and the accompanying cost can be reduced, but also the number of assembly steps can be reduced. As a result, the workability of arranging the hose 36 can be further improved.

In this embodiment, since the holder 32 holding the hose 36 is provided on one side wall 24A of the head cover 24, the hose 36 is pivotally moved about the pivot shaft 26.
, The hose 36 is not swung in an unstable state due to the swiveling motion of the wiper arm 12. For this reason, it is possible to prevent the hose 36 from interfering with surrounding components and damaging the hose 36 due to the repeated operation of the wiper arm 12 by wiping.

Further, in the present embodiment, since the intermediate portion 32B of the holder 32 is formed as a curved portion bulging outward, the intermediate portion 32B and the surface of the one side wall portion 24A of the head cover 24 are formed. A space 38 for holding the hose 36 is secured. Therefore, the other end 32 of the holder 32
C, the engaging claw 44 is secured to the engaging protrusion 46 of the head cover 24 and fixed.
Is not crushed and the diameter is not reduced. That is, according to the present embodiment, the hose 36 is connected to the intermediate portion 32 of the holder 32.
B can be prevented from being unnecessarily crushed and becoming a supply resistance of the washer liquid.

[Second Embodiment] Next, a second embodiment of the wiper with a washer nozzle according to the present invention will be described with reference to FIGS. Note that the same components as those in the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.

The second embodiment is positioned as a variation of the first embodiment.

In the embodiment shown in FIGS. 3A and 3B, the one end 50A and the intermediate portion 50B of the holder 50 are constructed in the same manner as in the first embodiment, but the other end 5A is formed.
0C is formed in a flat plate shape.
It is characterized in that OC is bonded or welded to the surface of the lower end of one side wall 24A of the head cover 24. That is, in the embodiment shown in FIG. 2, the engagement claw 44 in the first embodiment is not formed, and therefore, the engagement protrusion is not formed on the lower end of one side wall 24 </ b> A of the head cover 24. Has become.

According to the above configuration, the other end 5 of the holder 50
Since 0C is bonded or welded to one side wall 24A of the head cover 24, the other end 50C is firmly fixed to the side wall 24A. Therefore, there is no possibility that the holder 50 is opened and the middle part of the hose 36 is detached. It should be noted that the effects of the first embodiment can be similarly obtained by the above configuration.

In the embodiment shown in FIGS. 4A and 4B, one end (lower end) 52A of the holder 52 is a hinge, and the other end (upper end) 52C is one side wall of the head cover 24. It is characterized in that it is bonded or welded to the surface of the portion 24C. The intermediate portion 52C of the holder 52 is configured in the same manner as in the first embodiment.

According to the above-described structure, the other end (upper end) 52C of the holder 52 is connected to the one side wall 2 of the head cover 24.
Since it is configured to be adhered or welded to 4C, the same operation and effect (prevention of detachment of the middle portion of the hose 36) can be obtained as in the embodiment shown in FIG. Furthermore, even if the holder 52 is not closed while holding the hose 36 by hand, the holder 36 can be held simply by hooking the hose 36 on the holding space 38 of the intermediate portion 52B, thereby improving workability.

In the embodiment shown in FIGS. 5A and 5B, one end 54A of the holder 54 is a hinge and the intermediate portion 54B is a holder for the hose 36 in FIG.
Is the same as that of the first embodiment shown in FIG. 1, except that a resin clip 56 is formed integrally with the other end 54C, and the resin clip 56 is formed in one side wall 24A of the head cover 24. It is characterized in that the holder 54 is fixed to the side wall 24A of the head cover 24 by utilizing the elastic deformation of the resin clip 56 at that time. Note that the resin clip 56 is formed in a substantially cylindrical shape having a hollow axial center portion so that the distal end portion can be elastically deformed in the radial direction.

According to the above configuration, by pushing the resin clip 56 into the engagement hole 58, the vicinity of the distal end of the resin clip 56 is elastically engaged with the periphery of the engagement hole 58 and fixed. . Therefore, in terms of engagement utilizing elastic deformation, this embodiment can be said to be the same type of structure as the first embodiment, and the same operation and effect as those of the first embodiment can be obtained. Also, in the case of this configuration, the outer peripheral surface of the resin clip 56 is restricted by the inner peripheral surface of the engagement hole 58, unlike the configuration of the first embodiment (a configuration in which the elastic deformation direction of the engaging claw 44 is not restricted). Therefore, there is a merit that the engagement state between the resin clip 56 and the engagement hole 58 is not easily released.

In the embodiment shown in FIGS. 6A and 6B, the one end 60A and the intermediate portion 60B of the holder 60 are configured in the same manner as the embodiment shown in FIG. It is characterized in that an engagement hole 62 is formed on the other end 60C side and a resin clip 64 is formed on one side wall 24A side of the head cover 24.

This structure is similar to the resin clip 5 shown in FIG.
Since the disposition relationship between 6 and the engagement hole 58 is reversed, the same operation and effect as in the embodiment shown in FIG. 5 can be obtained.

In the embodiment shown in FIGS. 7A and 7B, the one end portion 70A and the intermediate portion 70B of the holder 70 are configured similarly to the embodiment shown in FIG. A small projection 72 is formed on the side of the other end 70C of the head cover 24, and a small hole 74 is formed on the side of one side wall 24A of the head cover 24, into which the small projection 72 is inserted. It is characterized in that it is bonded or welded to the inner surface of one side wall 24A.

With the above configuration, the same operation and effect as those of the other adhesive or welding type embodiments (FIGS. 3 and 4) can be obtained. Further, since the bonding or welding portion is located inside one of the side walls 24A of the head cover 24, it is not visible from the outside, so that the appearance quality of the arm head 16 can be improved.

In the above-described embodiments, the washer nozzle 40 is provided on the wiper arm 12 side. However, the present invention is not limited to this.
0 may be provided.

Further, in the first embodiment described above, the mating claw 44 formed on the other end portion 32C of the holder 32 is attached to the lower end portion of one side wall portion 24A of the holder cover 24 and fixed. However, the present invention is not limited to this, and a configuration may be adopted in which a protrusion is formed at the lower end of the side of the arm head main body 22 and the engaging claw 44 is fixed to the protrusion. Regarding this point, for example, the holder 54 of FIG.
Applies similarly.

[Brief description of the drawings]

FIG. 1A shows a state in which a holder which is a main part of a wiper with a washer nozzle according to a first embodiment is opened (C).
(B) is a cross-sectional view taken along the line QQ shown in a state where the holder is closed, and (C) is a side view of the arm head.

FIG. 2 is a side view showing the entire configuration of the wiper with a washer nozzle according to the first embodiment.

FIG. 3 is a diagram showing a first modification of the second embodiment;
It is sectional drawing and side view corresponding to (B) and (C).

FIG. 4 is a diagram showing a second modified example according to the second embodiment;
It is sectional drawing corresponding to (A) and (B).

5A and 5B are diagrams showing a third modification according to the second embodiment, in which FIG. 5A is a cross-sectional view corresponding to FIG. 1B, and FIG.
FIG. 3 is an enlarged sectional view of a main part in an engaged state of a resin clip.

FIG. 6 is a view showing a fourth modification of the second embodiment;
It is sectional drawing corresponding to (A) and (B).

FIG. 7 is a view showing a fifth modification of the second embodiment;
It is sectional drawing corresponding to (B).

[Explanation of symbols]

 Reference Signs List 10 Wiper with washer nozzle 12 Wiper arm 14 Wiper blade 16 Arm head 18 Retainer 22 Arm head body 24 Head cover 26 Pivot shaft (Wiper pivot shaft) 32 Holder (Hose holding part) 32A One end 32B Intermediate part 32C Other end 36 Hose 40 Washer Nozzle 44 Engagement claw 46 Engagement protrusion 50 Holder (hose holding part) 50A One end 50B Middle part 50C Other end 52 Holder (Hose holding part) 52A One end 52B Middle part 52C Other end 54 Holder (Hose holding part) 54A One end 54B Intermediate part 54C Other end 56 Resin clip 58 Engagement hole 60 Holder (Hose holding part) 60A One end 60B Intermediate part 60C Other end 62 Engagement hole 64 Resin clip 70 Holder (Hose holding part) 70A One end 70B intermediate portion 70C and the other end portion 72 small projection 74 small holes

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuhiro Iijima 311 Numato, Shimotakayanagi, Oaza, Kazo City, Saitama Prefecture Inside (72) Inventor Takayuki Suzuki 311 Numato, Shimotakayanagi, Kazo City, Saitama Prefecture Address F-term in Japan Wiper Blade Co., Ltd. (reference) 3D025 AA01 AB01 AC01 AC02 AD01 AD09 AE04 AE05 AE21 AF08

Claims (2)

[Claims] An arm head main body having one end fixed to a wiper pivot shaft; a resin head cover mounted on the arm head main body and covering the surface to form an arm head; and the arm head; A wiper arm having a retainer rotatably supported in the direction of the wiping surface with respect to the wiping surface, a wiper arm having a tip end connected to a wiper blade for wiping the wiping surface, provided on the wiper arm or the wiper blade,
A washer nozzle for injecting a washer liquid onto the wiping surface; and a hose arranged along the arm head and the retainer and connected to the washer nozzle for supplying a washer liquid. In the head cover, one end part integrally connected to the head cover to form a hinge part, the other end part fixed to the head cover or the arm head main body to form a fixed part, and formed in a belt shape A washer nozzle configured to connect the one end with the other end and hold the hose between the surface of the head cover and the intermediate portion. With wiper. 2. The wiper with a washer nozzle according to claim 1, wherein the intermediate portion is configured as a curved portion bulging outward.