JPH0565710U - Wind wiper - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is intended to prevent the accumulation of snow on the lower side of the wind and to secure the visibility when the wind wiper is used during snow running. A motor 11 is attached to the wiper arm 1 so as to be rotatable in association with the swiveling motion of the wiper arm 1. The motor 11 is rotated by the motor 11 and comes into contact with the surface of the windshield 2 to raise the wiper arm 1 above. The wiper arm 1 is brought close to the surface of the windshield 2 so that the wiper blade 3 comes into contact with the surface of the windshield 2 on the outward path of the turning, and the wiper arm 3 is separated from the surface of the windshield 2 on the returning path of the downward turning. 1 is provided with an eccentric cam 12 having a cam profile for lifting 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wind wiper for wiping a window of an automobile or the like.

[0002]

[Prior Art]

 As is well known, windshield wipers for automobiles are equipped with wiper blades that come into contact with the windshield and are attached to a wiper arm that is constantly urged in the direction of the windshield surface by a spring to reciprocate at a required turning angle. To wipe off rainwater and snow.

[0003]

[Problems to be solved by the device]

 However, when traveling in the snow, if the wiper arm makes a forward turn, the snow adhering to the windshield surface is scraped up by the wiper blade, and the wind pressure is applied to the snow to make it fly to the side from the vehicle body. Although the snow accumulation phenomenon does not occur, when the wiper arm makes a backward turn, the snow adhering to the windshield is scraped off by the wiper blade, so the snow gradually accumulates on the lower side of the wind and the visibility becomes narrow. is there.

An object of the present invention is to provide a wind wiper that solves the above conventional problems.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is characterized in that, in a wiper that reciprocates and swivels to wipe a window of a vehicle, a motor that is attached to a wiper arm and is rotatable in association with the swivel motion of the wiper arm. When the wiper arm is rotated upward by the motor, the wiper blade is brought into contact with the windshield surface so that the wiper blade comes into contact with the windshield surface. The eccentric cam has a cam profile that lifts the wiper arm so that the wiper blade is separated from the windshield surface.

[0006]

[Action]

 With the above configuration, during snow running, the motor is activated to bring the wiper blade into contact with the windshield surface only on the outward path of the upward turn to perform a wiping action, and on the return path of the downward turn, the wiper blade is lifted above the windshield surface. The snow scraping action to prevent snow accumulation under the wind.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 10 is a wind wiper, and a wiper arm 1 is constantly urged in the plane direction of the windshield 2 by a spring (not shown) on a rotary shaft 8 that reciprocally rotates at a predetermined rotation angle, and the surface of the windshield 2 is also shown. It is pivotally attached so as to be separated from and accessible to. A wiper blade 3 that comes into contact with the surface of the windshield 2 is attached to the wiper arm 1. Reference numeral 5 denotes a body outer plate, to which the wind glass 3 is attached via a rubber sash 4. Reference numeral 6 is a cowl outer plate, and 7 is a retainer for the wiper arm 1.

According to the present invention, in the wind wiper 10 having the above-described structure, the bracket 9 coupled to the retainer 7 of the wiper arm 1 is reciprocally rotated by the rotary shaft 8 and separated from the surface of the windshield 2. , It is possible to move with the approach.

Further, the bracket 9 has a structure in which a small motor 11 controlled by a switch from the driver's seat is installed, and an eccentric cam 12 is fixedly mounted on a rotary shaft of the motor 11.

As shown in FIGS. 2 and 3, the eccentric cam 12 makes the wiper arm 1 contact the surface of the windshield 2 so that the wiper blade 3 contacts the surface of the windshield 2 in the outward path A of the upward rotation of the wiper arm 1. The cam profile has a cam surface A1 for approaching and a cam surface B1 for lifting the wiper arm 1 so that the wiper blade 1 is separated from the surface of the windshield 2 on the return path B of the downward rotation of the wiper arm 1.

Since the structure of the present invention is as described above, the wind wiper 10 is operated during snow running and, if necessary, the switch is operated from the driver's seat to operate the motor 11. As a result, the wiper arm 1 is positioned in the normal state in which it is close to the windshield 2 surface by the eccentric cam 12 cam surface A1 in the outward path A of the upward turning shown in FIG. 2, and the wiper blade 3 comes into contact with the windshield 2 surface. Then, the snow adhering to the surface of the windshield 2 is scooped up, and the wind pressure is applied to the snow to bounce it to the side from the vehicle body.

On the return path B from the upper turning end to the lower turning, the wiper blade 1 is lifted by the eccentric cam 12 cam surface B 1 so as to be separated from the surface of the windshield 2. As a result, the wiper blade 1 floats above the surface of the windshield 2 and is so-called idle-operated to swivel to the lower end, so that snow is not scraped down. Therefore, the accumulation of snow on the lower side of the window due to snow scraping is prevented.

The wiping operation by the wiper blade 3 is performed only on the outward path of the upward turning, but by setting the control circuit so as to increase the reciprocating turning speed of the wiper arm 1 when the motor 11 is operated, , One-way wiping will ensure sufficient visibility.

[0014]

[Effect of the device]

 As described above, according to the present invention, the wiper arm is provided with a motor that can rotate in association with the swiveling motion of the wiper arm, and the motor rotates by this motor and contacts the wind glass surface to rotate the wiper arm upward. An eccentric cam with a cam profile is provided to bring the wiper blade closer to the windshield surface on the outward path of the vehicle and to lift the wiper arm away from the windshield surface on the backward turning path. Because of the configuration, when using the wind wiper during snowfall, it is possible to prevent snow accumulation under the wind and ensure visibility.

[Brief description of drawings]

FIG. 1 is a side view of the present invention.

FIG. 2 is an explanatory diagram of a reciprocating path turning operation of a wiper arm.

FIG. 3 is a diagram showing a cam profile of an eccentric cam.

[Explanation of symbols]

 1 Wiper arm 2 Wind glass 3 Wiper blade hub 8 Rotating shaft 9 Bracket 10 Wind wiper 11 Motor 12 Eccentric cam

Claims (1)

[Scope of utility model registration request] 1. A wiper for reciprocatingly turning to wipe a window of a vehicle, the motor being attached to a wiper arm and rotatable in association with the turning movement of the wiper arm.
The wiper arm is brought into contact with the windshield surface and is rotated by the motor so that the wiper blade is brought close to the windshield surface so that the wiper blade comes into contact with the windshield surface on the outward path of the upward swing of the wiper arm, and the windshield wiper blade is moved on the return path of the downward swing. A wind wiper comprising an eccentric cam having a cam profile that lifts the wiper arm so as to be separated from the glass surface.