JP2519985Y2 - Vehicle wiper structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a wiper structure of a vehicle for wiping a windshield, for example.

(Prior Art) Conventionally, as a wiper structure of the vehicle of the above-mentioned example, for example,
There is a structure described in Japanese Utility Model Publication No. 1-85159.

That is, as shown in FIG. 8, a wiper arm 84 including a retainer 82 and an arm piece 83 is attached to the arm head 81, and the wiper blade is attached to the tip of the arm piece 83.
It is a structure in which a blade rubber 86 is attached via 85.

Here, the arm head 81 and the retainer 82 described above are
A spring 88 that presses the blade rubber 86 toward the front window glass surface is stretched between the two 81 and 82 while being connected via 87.

The wiper blade 85 described above includes a pair of secondary levers 90, 90 that support the blade rubber 86 described above via a rubber holder 89, and a primary lever 91 that supports both of these secondary levers 90, 90. Pin 92 between the center of lever 91 and the tip of arm piece 83 described above.
Are combined using.

However, in such a conventional one-point coupling structure,
When the wiper blade 85 described above is formed to be long due to the increase in size of the windshield glass, there is a problem in that sufficient support rigidity of the wiper blade 85 cannot be ensured.

(Object of the Invention) An object of the present invention is to provide a wiper structure for a vehicle that can achieve an increase in the size of the wiper blade corresponding to an increase in the size of the windshield glass by improving the support rigidity of the wiper blade.

(Structure of the Invention) The present invention includes a pair of secondary levers for supporting the blade rubber and a primary lever for supporting both the secondary levers, and extends the wiper arm side end portion of the primary lever to form an extension portion. The wiper structure of the vehicle is characterized in that the extension is connected to a wiper arm.

(Effect of the Invention) According to this invention, since the extension portion of the primary lever is directly connected to the wiper arm, it is possible to improve the support rigidity of the wiper blade. There is an effect that the wiper blade can be made larger (longer).

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawing shows a wiper structure of a vehicle. In FIG. 1, this wiper has a wiper blade 1 attached to the tip of a wiper arm 1.

The wiper blade 2 described above includes a pair of cubic levers 3,3 and one end of each of the cubic levers 3,4 via pins 4,4.
At the center of 3, a pair of secondary levers 6 and 6 having the other end attached to the rubber holder 5 and a primary lever 7 supporting these secondary levers 6 and 6 are provided, and both ends of each of the above cubic levers 3 and 3 are provided. The blade rubber 8 is supported via the rubber holder 5 at a total of 6 points on the other end of each of the above-mentioned secondary levers 6,6.

In addition, the wiper arm 1 of the above-mentioned primary lever 7
The side end is extended to integrally form the extension 7a.
7a is directly connected to the wiper arm 1 described above.

Further, a secondary lever holding portion 7b is integrally formed at a portion near the above-mentioned extension portion 7a and corresponding to the center of the secondary lever 6 on the wiper arm 1 side. 6 is supported with the primary lever 7 biased downward.

That is, as shown in FIG. 2, the secondary lever 6
A slider 9 is provided to cover the central portion of the slider from above in a substantially gate shape, and the guide pins 10, 10 on the outside of the slider 9 are attached to the holding portion 7.
While slidably inserting into the long holes 7c, 7c formed in b,
A pressing spring 11 is provided between the holding portion 7b and the slider 9 described above.
By interposing, the secondary lever 6 on the wiper arm 1 side is urged downward to improve the followability to the curved window glass.

A holding portion 7d for holding the secondary lever 6 on the other side is integrally formed at the tip of the above-mentioned primary lever 7, and the secondary lever 6 on the side opposite to the wiper arm is supported by the holding portion 7d via a pin 12.

The coupling structure between the extension 7a and the wiper arm 1 of the above-mentioned primary lever 7 is as shown in FIGS. 3 and 4.

That is, while the resin holder 14 is previously provided inside the tip of the wiper arm 1 by using the crimping pin 13,
U-shaped grooves 7e, 7e are formed above and below the end of the extension 7a, and a locking hole 7f is formed in the vicinity of the position where the lower groove 7e is formed. When inserted in the extension holding space inside the holder 14, the locking tongue piece 14a of the holder 14 engages with the above-mentioned locking hole 7f to prevent the extension 7a from coming off and the pressing tongue of the holder 14 is pressed. The piece 14b presses the upper surface of the extension 7a,
Connect the extension 7a of the primary lever 7 described above to the wiper arm 1
It is configured to be joined with one touch to the tip.

In this way, since the extension portion 7a of the primary lever 7 is directly connected to the wiper arm 1, the wiper blade 2
The support rigidity can be improved, and as a result, there is an effect that the above-mentioned increase in size of the wiper blade 2 can be achieved corresponding to the increase in size of the windshield.

The base end of the wiper arm 1 is similar to the conventional structure.
The wiper arm 1 and the wiper blade 2 are connected to the arm head via a pin, and the wiper driving device drives the wiper arm 1 and the wiper blade 2 with the wiper shaft (wiper pivot) at the base of the arm head as a fulcrum to wipe the windshield with the blade rubber 8. .

FIG. 5 shows another embodiment of the connecting structure of the extension portion 7a of the primary lever 7 and the wiper arm 1. As shown in this embodiment, the screw insertion holes 15 and 16 are formed in the wiper arm 1 while being separated from each other. Screw holes 17 and 18 are formed in the extension portion 7a of the screw hole corresponding to these screw insertion holes 15 and 16, and screws 19 and 19 are
Both of these 1,7a may be bound and fixed using.

FIG. 6 shows another embodiment of the wiper structure of the vehicle. In this embodiment, the wiper arm 1 of the primary lever 7 is used.
The holding part at the part corresponding to the center of the cubic lever 3 on the side
7g is integrally formed, and a stay 20g
21 is connected and the center of the secondary lever 6 on the wiper arm 1 side is supported by the free end of this stay 21 via a pin 22.

That is, as shown in the disassembled state in FIG. 7, one end of the coil spring 23 wound around the pin 20 is pivotally attached to the pin 20 which is caulked to the holding portion 7g,
23a is pressed against the base end lower surface 21a as the spring seat of the stay 21,
Connect the other end 23b of the coil spring 23 to the cutout portion 21b of the stay 21.
Then, the other end 23b is pressed into contact with the lower surface of the primary lever 7 after being led out upwards, and the spring force of the coil spring 23 causes the stay 21 and the secondary lever 6 on the wiper arm 1 side to move in the direction of the arrow in FIG. That is, it is configured to urge downward.

Even in the case of such a configuration, since the extension portion 7a of the primary lever 7 described above is directly coupled to the wiper arm 1 as in the previous embodiment, the support rigidity of the wiper blade 2 can be improved, and the window can be improved. There is an effect that the above-mentioned enlargement of the wiper blade 2 can be achieved corresponding to the enlargement of the glass.

In FIGS. 6 and 7, the same parts as those in the previous embodiment are designated by the same reference numerals and symbols, and detailed description thereof will be omitted.

Further, in the above-described embodiment, the end portion of the primary lever 7 on the wiper arm 1 side is extended to form the extension portion 7a, but the holding portion as shown in FIG.
7b or holding portions 7g as shown in FIG. 6 may be integrally formed, and the holding portions 7b or 7b may be configured to support the center of the secondary lever 6 on the wiper arm 1 side.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a side view showing a wiper structure of a vehicle, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is B of FIG. FIG. 4 is a perspective view showing a coupling structure of a wiper arm and a blade extension portion, FIG. 5 is a perspective view showing another embodiment of the coupling structure, and FIG. 6 is another wiper structure of a vehicle. FIG. 7 is a side view showing an embodiment, FIG. 7 is an exploded perspective view of a portion C in FIG. 6, and FIG. 8 is an explanatory view showing a conventional vehicle wiper structure. 1 ... Wiper arm 2 ... Wiper blade 6 ... Secondary lever 7 ... Primary lever 7a ... Extension 8 ... Blade rubber

Claims (1)

(57) [Scope of utility model registration request] 1. A pair of secondary levers for supporting a blade rubber, and a primary lever for supporting both of the secondary levers, wherein an end portion of the primary lever on the wiper arm side is extended to form an extension portion. A vehicle wiper structure in which the part is connected to a wiper arm.