JPS632351Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wiper, and more particularly to a mounting structure between a wiper blade and a wiper arm.

Generally, in the case of a running object such as a vehicle, a wiper is provided on the outside of the windshield in the direction of travel to wipe away rain and snow from the windshield to ensure the driver's visibility. As shown in FIG. 1, this wiper consists of a wiper blade 3 in which a blade 1 is held in contact with a windshield (not shown) by a stay 2, a distal end of the wiper blade 3 is attached to the stay 2, and a proximal end of the wiper blade 3 is attached to the stay 2. The wiper arm 4 is attached to a wiper motor (not shown) to reciprocate the wiper blade 3 along the windshield surface, and the wiper arm 4 is normally located at the lower part of the windshield when stopped. It is set as. By the way, there are various mounting structures for the wiper blade 3 and the wiper arm 4, for example,
11040, and as shown in FIG. 2, an arm attachment part 2a having a substantially U-shaped cross section is provided at the approximate center of the stay 2, and the arm attachment part 2a is pivoted across from the front of this attachment part 2a by a shaft 5. The wiper arm 4 is attached to the stay 2 through a holder 6, which is disclosed in Japanese Patent Publication No. 39-7405, and the upper wall of the arm attachment part 2a is opened as shown in FIG. There is one in which the tip of the wiper arm 4 is inserted into this opening and fixed to the shaft 5', and the wiper arm 4 is directly attached to the stay 2. However, in these conventional mounting structures for the wiper blade 3 and the wiper arm 4, the holder 6 and the wiper arm 4 are located above the stay 2 in the former case, and the wiper arm 4 is located above the stay 2 in the latter case. On the other hand, the rotation axis of the wiper motor is inclined along with the windshield surface, and when the wiper W is located at the stopping position of the wiper W, that is, at the lower part of the windshield, it is necessarily in front of the wiper blade 3. The wiper blade 3 is tilted diagonally upward, and the holder 6 and the wiper arm 4 arranged above the wiper blade 3 obstruct the driver's view. In addition, in order to improve this drawback, the stay 2
There is also one in which the wiper arm 4 is located on the side. However, in this conventional example, a shaft 5'' is provided protruding from the side of the arm attachment portion 2a of the stay 2,
The tip of the wiper arm 4 is pivotally attached to this shaft 5'' via a locking spring 7, so that the load of the wiper arm 4 to attach the wiper blade 3 to the windshield surface does not act on the central axis of the stay 2. ,
Even though the locking spring 7 is provided, the wiper blade 3 becomes oblique and vibrates when it comes into contact with the windshield, causing rain, rain, etc.
There was a problem with uneven wiping of snow, etc. Furthermore, in the conventional wipers shown in Japanese Utility Model Application Publication No. 54-11040 and Japanese Patent Publication No. 39-7405, the wiper arm is attached to the stay through separate holders. It is now being installed. Therefore, the number of parts increases, and the assembly work becomes complicated, leading to an increase in the cost of the product.

In view of these conventional problems, the present invention has been developed by mounting the wiper arm on the central axis of the stay of the wiper blade, and arranging the wiper arm on the side of the wiper blade to prevent uneven wiping and expand the field of view. In addition to this, the number of parts can be reduced to reduce costs.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, in which the same parts as those in the conventional structure are denoted by the same reference numerals.

That is, FIG. 5 is a perspective view of the attachment part between the stay 2 of the wiper blade 3 and the wiper arm 4 of the wiper W of the present invention, and FIG. 6 is a cross-sectional view taken along the line - in FIG. The arm attachment portion 2a of the stay 2 is formed with side walls 10 and 10' arranged opposite to each other in the width direction of the stay 2, and an opening 1 is formed at the upper part over an appropriate length between the side walls 10 and 10'.
1, and a notch 12 is formed in the upper part of the side wall 10 on the side where the wiper arm 4 is attached among the side walls 10 and 10', and is located in the opening 11 and is continuously cut out from the opening 11. . On the other hand, this wiper arm 4 is provided with a step-like bent part 13 so as to pass through the notch 12 from the side of the stay 2 and be disposed between the both side walls 10, 10'. A U-shaped locking part 14 that bends backward is formed at the tip of the wiper arm 4, and the wiper arm 4 is disposed on the side of the stay 2.
A U-shaped locking portion 14 at the tip thereof is positioned on the central axis of the stay 2. The U-shaped locking portion 14 has a shaft 1 between the side walls 10 and 10'.
A substantially U-shaped leaf spring 1 rotatably pivoted via 5.
The locking means includes a claw 16a protruding from the front part of the leaf spring 16, and a claw receiving hole also provided at the rear part of the U-shaped locking part 14. 14a, and this claw receiving hole 14a
The claw 16a is inserted into the hole. Further, both sides of the U-shaped locking portion 14 are provided with arm attachment portions 2a to prevent rattling between the U-shaped locking portion 14 and the stay 2.
slidably abut against the both side walls 10, 10' of
The stay 2 itself controls sliding movement between the stay 2 and the wiper arm 4. Note that when removing the wiper blade 3 from the wiper arm 4, the wiper blade 3 should be removed so that the wiper arm 4
The claw 1 rotates around the shaft 15 in a direction away from the claw 1 and pushes inward the tip 16b of the U-shaped leaf spring 16 that protrudes forward from the opening 11 of the arm attachment part 2a.
6a and the pawl receiving hole 14a, and the leaf spring 1 is removed.
6 to remove the U-shaped locking portion 14.

With the above configuration, by passing the wiper arm through the notch formed in the side wall, the wiper arm 4 can be placed below and to the sides of the wiper blade 3 when the wiper W is stopped, and therefore the wiper arm 4 can be placed below and on the sides of the wiper blade 3 when the wiper W is stopped. When the wiper arm 4 does not protrude above the wiper blade 3, the driver's field of vision can be expanded. In addition, since the wiper arm 4 is attached through the notch 12 with the tip of the wiper arm 4 placed on the central axis of the stay 2, the load pressing the wiper blade 3 is absorbed by the wiper blade 3. Since it acts in a direction perpendicular to the glass surface, the window glass surface can be wiped uniformly. Furthermore, in this invention, when attaching the wiper arm to the stay, the swing between the wiper arm and the wiper arm is directly controlled by the stay itself without using a holder, so in addition to the above-mentioned effects, the number of parts can be reduced. This has an excellent practical effect of reducing product costs by improving assembly workability.

[Brief explanation of the drawing]

Figure 1 is an external view of the wiper, Figures 2 to 4 are partially enlarged perspective views showing the attachment parts of the conventional wiper blade and wiper arm, and Figure 5 is the wiper blade of the wiper of the present invention. FIG. 6 is a partially enlarged perspective view showing the attachment portion to the wiper arm, and FIG. 6 is a sectional view taken along the line -- in FIG. 2... Stay, 2a... Arm mounting part, 3...
Wiper blade, 4...Wiper arm, 1
0, 10'... Side wall, 11... Opening, 12... Notch, 13... Bent part, 14... U-shaped locking part,
W...Wiper.

Claims (1)

[Scope of utility model registration request] A wiper blade having a stay having side walls arranged opposite to each other in the width direction and having an arm attachment part opened at an upper part between the side walls; and a wiper blade that is inserted through the opening of the arm attachment part and installed between the side walls. and a wiper arm that reciprocates the wiper blade by reciprocating the wiper blade, wherein a notch is located in the opening and is continuous from the opening in the side wall on the wiper arm attachment side of both side walls of the arm attachment part. On the other hand, the wiper arm is provided with a bent portion that extends from the outside of the side of the stay through the notch and extends between the both side walls, and the bent portion is formed in the notch. By arranging the wiper arm on the side of the stay of the wiper blade, a U-shaped locking portion is formed at the tip of the wiper arm, and this U-shaped locking portion is connected to the arm. It locks onto a shaft provided between both side walls of the mounting part, and both sides of the U-shaped locking part are slidably abutted on the inside of both side walls of the arm mounting part, and the stay itself is connected to the wiper arm. A wiper characterized by regulating rattling between the wipers.