JPS6024670Y2 - Vehicle wiper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a vehicle wiper with a rise-up mechanism in which the wiper stop position is located below the glass surface from the reverse position during wiper operation.

A pressing force necessary to obtain wiping performance is applied to the wiper blade, which is one component of the wiper, and the ribbon attached to the wiper blade is pressed against the glass surface by this pressing force.

In conventional wipers, the above-mentioned pressing force is always applied even when the wiper is stopped, so the ribbon buckles, and if the wiper is stopped for a long time, the ribbon becomes permanently deformed.

Permanent deformation of the ribbon is a major cause of deterioration in wiping performance and occurrence of shudder.

The present invention has been developed to solve the above-mentioned conventional problems, and is intended for use in vehicles to reduce the pressing force applied to the wiper blade when the wiper is stopped, and to prevent the ribbon attached to the wiper blade from deteriorating over time. The purpose is to provide wipers.

To this end, the present invention provides a vehicle wiper in which the base end of a slide piece is fixedly installed near the wiper blade attachment part of the wiper arm, the tip of the slide piece faces obliquely forward and downward from the wiper arm, and the wiper arm The tip of the slide piece has a gap with the glass surface when the wiper is in operation, and a slide slope is fixed on the vehicle body side at a position opposite to the slide piece when the wiper is stopped. , the slide slope is formed with an inclined surface whose tip substantially coincides with the glass surface, whose base is higher than the glass surface, and on which the tip of the slide piece rides from the tip of the slide slope toward the base when the wiper is stopped; The surface has a length that approximately matches the dimension between the tip of the slide piece and the tip of the ribbon so that the ribbon provided on the wiper blade to wipe away raindrops does not ride on the slide slope when the wiper stops. In addition, the base of the slide slope is provided with a stopper that protrudes from the slope and comes into contact with the tip of the slide heath to stop the movement of the slide piece. The purpose was to be a distant relative.

The present invention will be described below with reference to illustrative embodiments.

A is a wiper with a rise-up mechanism, which is composed of a wiper arm 11, a wiper blade 12, and a ribbon 14 attached to the wiper blade 12 to wipe away raindrops on the glass surface 13 of the front window b. It is made to go back and forth.

A base end 15a of a slide piece 15 is fixed near the wiper blade 12 mounting portion 19 of the wiper arm 11, and a tip 15b of the slide piece 15 faces obliquely forward and downward from the wiper arm 11.
1, and has a gap between the tip 15b and the glass surface 13 so as not to contact the glass surface 13 when the wiper is operated, as shown by the chain line in FIG. .

A slide slope 16 is fixed to a lower molding 18a of a molding 18 fixed to the mounting opening of the front window b of the vehicle body 17 at a position opposite to the slide piece 15 when the wiper is stopped.

The slide slope 16 has a tip 20a that is connected to the glass surface 1.
3, an inclined surface 20 is formed which serves as a guide surface for the slide piece 15, and the base 20b is made higher than the glass surface 13. the tip 2
It is designed to ride up from 0a toward the base 20b.

The inclined surface 20 of the slide slope 16 is connected to the ribbon 14 provided on the wiper blade 12 when the wiper is stopped.
The tip 15b of the slide piece 15 and the tip 14 of the ribbon 14 are
It is provided on the glass surface 13 with a length that substantially matches the dimension between a.

A stopper 21 that protrudes upward from the inclined surface 20 is provided at the base 20b of the inclined surface 2o of the slide slope 16.
5b comes into contact with the slide piece 15, and the movement of the slide piece 15 is stopped.

Note that the slide slope 16 can also be formed integrally with the lower molding 18a.

As described above, according to the present invention, in a vehicle wiper with a rise-up mechanism, the base end of the slide piece is fixedly installed near the wiper blade attachment part of the wiper arm, and when the wiper is stopped, the slide piece is installed on the vehicle body side. This reduces the pressing force applied to the ribbon, preventing permanent deformation of the ribbon, thereby preventing deterioration of wiping performance and the occurrence of shudder, and further improving the durability of the ribbon. can improve sex.

Furthermore, according to the present invention, by preventing the ribbon from deteriorating over time, it is possible to increase the pressing force to compensate for the improved durability, thereby improving high-speed wiping performance.

In addition, since the slide piece is installed on the wiper with a rise-up mechanism, the reversal position during wiper operation and the wiper stop position are different, and when the wiper is reversed during operation, the wiper does not lift up from the glass surface, resulting in areas that are not wiped. can be prevented.

Moreover, when the wiper is operated, the slide piece and the slide slope do not interfere with each other, and the wiper operation can be performed smoothly as before.

In addition, since the slide piece is provided at the tip of the wiper arm (near the wiper blade attachment part), there is no need to extend the slide slope long into the car body, and the seal between the glass and the car body, such as weather stripping, can be removed. There's no need to get over it.

Also, a spring that presses the wiper against the glass surface is generally installed between the arm's pivot shaft attachment part (not shown) and the arm, but it is better to install the slide piece closer to the pivot shaft. It is better to provide the wiper blade near the attachment part because the force of riding up on the slide slope against the spring force is smaller.

In addition, the sloped surface formed on the slide slope has a length that approximately matches the length between the tip of the ribbon provided on the wiper blade to wipe away raindrops from the glass surface and the tip of the slide piece, and furthermore, the length of the inclined surface formed on the slide slope is approximately the same as the length between the tip of the ribbon provided on the wiper blade to wipe away raindrops from the glass surface and the tip of the slide piece. Since a stopper is provided, the ribbon does not ride on the slide slope, and is positioned on the glass surface to reliably prevent deformation of the ribbon.

When a slide piece is installed near the wiper blade attachment part of the wiper arm, the distance between the ribbon and the slide piece is short and the slope of the slide slope must be strong in order to float the ribbon.However, in this invention, the slide piece Since the wiper arm is directed obliquely forward and downward from the arm and extends forward from the wiper arm, the ribbon can be floated even on a gentle slope and the operation can be performed smoothly.

[Brief explanation of the drawing]

FIG. 1 is a front view of a front window equipped with a wiper according to the present invention, and FIG. 2 is an enlarged sectional view taken along line A--A in FIG. 1. a is a wiper, 11 is a wiper arm, 12 is a wiper blade, 14 is a ribbon, 15 is a slide piece, 16
is a slide slope.

Claims (1)

[Scope of utility model registration request] In a vehicle wiper with a rise-up mechanism in which the wiper stop position is located below the windshield surface from the inverted position during wiper operation, the base end of a slide piece is fixed near the wiper blade attachment part of the wiper arm, and the slide piece The tip extends obliquely forward and downward from the wiper arm and projects forward from the wiper arm,
The tip of the slide piece has a gap with the glass surface when the wiper is activated, and a slide slope is fixedly installed on the vehicle body side at a position opposite to the slide piece when the wiper is stopped. An inclined surface is formed, which is substantially coincident with the glass surface, the base of which is higher than the glass surface, and on which the tip of the slide piece rides from the tip of the slide slope toward the base when the wiper stops; In order to prevent the ribbon provided on the blade for wiping raindrops from the glass surface from riding up the slide slope, the ribbon is provided on the glass surface with a length that substantially matches the dimension between the tip of the slide piece and the ribbon tip,
Furthermore, the vehicle wiper is characterized in that the base of the slide slope is provided with a stopper that protrudes from the slope and comes into contact with the tip of the slide piece to stop the movement of the slide piece.