JPH09328057A - Adhering ice remover for vehicle wiper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device which can remove ice adhering to a wiper blade by switch operation without going out of a vehicle. SOLUTION: A device is constituted by a cam unit 8 rotatable around rotary shaft line 9 almost in parallel to a glass surface 1 and a rotation control means 7 rotating this cam unit 8. The cam unit 8 has a cam surface comprising a large diametric cam surface part 10 most distant from the rotary shaft line 9, small diametric cam surface part 11 nearest to the rotary shaft line 9 in a side opposed almost in a diameter direction to this large diametric cam surface part 10 and a transfer cam surface part 12 between the large/small cam surface parts 10, 11. In this constitution, in the case of rotating the cam unit 8, it is brought into contact with a wiper intermediate part 5 only in a very narrow range of the large diametric cam surface part and its before and after, the wiper intermediate part 5 is brought up from the glass surface 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wiper, and more particularly to a device for removing ice adhering to a wiper.

[0002]

2. Description of the Related Art For example, when moisture adhering to a windshield wiper of an automobile freezes, even if the wiper is operated, the ice adhering to the wiper causes unwiping to be left behind, which hinders visibility and prevents safe driving. Conventionally, when ice has adhered to such a wiper, the driver or passenger goes out of the parked vehicle, lifts the wiper, and then releases the hand repeatedly, hitting the wiper on the glass surface and attaching it. It will be necessary to knock off the ice that has fallen.

[0003]

However, it is troublesome to stop on a snowy road or on a road at the time of snowfall, as it may cause a traffic jam or get out of a cold vehicle.

Therefore, an object of the present invention is to obtain an apparatus capable of removing the ice adhered to the wiper blade by a switch operation without going out of the vehicle.

[0005]

In order to achieve this object, an adhering ice removing device for a vehicle wiper according to the present invention comprises a wiper base which is connected to a motor output shaft and is rotatable about an axis intersecting a glass surface. , The wiper base is rotatably connected about an axis substantially parallel to the glass surface, and the wiper intermediate portion is spring-loaded toward the glass surface and the glass surface relative to the wiper intermediate portion. A device for attaching to a vehicle body at a position corresponding to an intermediate portion of a wiper of a vehicle wiper constituted by a wiper blade portion rotatably connected about an axis line substantially parallel to With a freely rotatable cam body,
And a rotation control means for rotating the cam body,
The cam body has a large-diameter cam surface portion that is farthest from the rotation axis and a small-diameter cam surface portion that is closest to the rotation axis on the side that is substantially diametrically opposed to the large-diameter cam surface portion. And a cam surface composed of a transition cam surface portion between the large diameter cam portion and the small diameter cam surface portion, and when the cam body rotates, the large diameter cam surface portion and the front and rear thereof only in an extremely narrow range. The cam body comes into contact with the wiper intermediate portion and lifts the wiper intermediate portion from the glass surface.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In carrying out the present invention, the cam body may have a wedge shape or a lever shape.

[0007]

The preferred embodiments of the present invention will now be described with reference to the drawings.

A wiper base 3 integrally fixed to a drive shaft 2 projecting so as to intersect the windshield 1 in a vehicle body portion near the windshield 1 of a vehicle, for example, an automobile.
And a wiper intermediate portion 5 that is rotatably connected to the wiper base 3 about a pivot 4 that is substantially parallel to the plane of the windshield 1, and is spring-loaded toward the glass surface, and this wiper. A wiper is constituted by a wiper blade portion 6 rotatably connected to an intermediate portion 5 about an axis substantially parallel to the plane of the windshield 1.

As shown in FIGS. 1 and 3, the vehicle wiper ice removing device according to the present invention includes a base portion 7 attached to a vehicle body at a position corresponding to a wiper intermediate portion 5 of the vehicle wiper, and a windshield 1. It is constituted by a cam body 8 which is rotatable about a rotation axis which is substantially parallel to the longitudinal direction on a plane, and rotation control means which is provided in the base portion 7 and includes a motor (not shown) for rotating the cam body 8. .

As shown in FIG. 2, the cam body has a rotation axis 9
From the large-diameter cam surface portion 10, the large-diameter cam surface portion 10 and the small-diameter cam surface portion 11 which is the closest to the rotation axis 9 on the diametrically opposite side. It has a cam surface comprising a transition cam surface portion 12 between the portion 10 and the small diameter cam surface portion 11.

The cam body is preferably wedge-shaped as shown in FIG. 2 or lever-shaped as shown in FIG.

When the cam body 8 rotates, the large-diameter cam surface portion 1
The cam body 8 comes into contact with the wiper middle portion 5 only in the extremely narrow range of 0 and before and after 0, and lifts the wiper middle portion 5 from the windshield surface (see FIG. 1B).

After passing through the large-diameter cam surface portion 10 and the extremely narrow area in front of and behind it, the wiper middle portion 5 is elastically and vigorously returned toward the windshield by the force of the spring load, whereby the wiper blade portion. The ice attached to 6 breaks down. This operation is repeated several times by the continuous rotation of the cam body, and the ice adhering to the wiper blade portion 6 is completely removed.

FIG. 4 shows another embodiment of the vehicle ice wiper ice removing device according to the present invention. In this embodiment, the cam body 8A is substantially parallel to the plane of the windshield 1 in the lateral direction. The lever-shaped cam body 8 has a lever shape rotatable about a rotation axis, and a tip of the lever-shaped cam body 8 has a wiper intermediate portion
The tongue portion 14 of the cam contact member 13 attached to the above is contacted for an extremely short period of time.

Whether to use the embodiment of FIG. 3 or the embodiment of FIG. 4 depends on the structure of the vehicle body, and the one which is convenient for mounting is selected. When the device for removing ice adhered to the vehicle wiper is not used, as shown in FIG. 1A, the rotation control means controls the cam body to stop without coming into contact with the wiper intermediate portion.

[0016]

According to the vehicle ice wiper ice removing device of the present invention, the ice attached to the wiper blade can be removed by rotating the cam body by a switch operation inside the vehicle without going out of the vehicle.

Further, according to the vehicle ice wiper ice removing device of the present invention, since the rotating cam body acts on the intermediate portion of the wiper, it operates with a small amount of power and the structure is simple, the cost is low and the operation is reliable. The advantage is that

[Brief description of drawings]

FIG. 1 is a diagrammatic explanatory view of a preferred embodiment of an ice removing device for a vehicle wiper according to the present invention, in which (a) shows a stopped state in which a cam body does not contact an intermediate portion of a wiper, and (b) shows
Shows a state in which the cam body lifts the middle portion of the wiper.

FIG. 2 is a perspective view of an adhered ice removing device of the vehicle wiper of FIG.

3 is a diagrammatic perspective view of a windshield portion of a vehicle to which the vehicle ice wiper adhesion ice removing device of FIG. 1 is attached.

FIG. 4 is a schematic perspective view of a windshield portion of a vehicle equipped with another preferred embodiment of the vehicle ice wiper ice removing device according to the present invention.

5 is an explanatory view of the vehicle ice wiper adhesion ice removing device of FIG. 4, (a) is a side view with a partial cross section, (b)
FIG. 6 is a perspective view of a cam contact member attached to a middle portion of a wiper.

[Explanation of symbols]

 1 Windshield 2 Drive shaft 3 Wiper base 4 Axis 5 Wiper middle part 6 Wiper blade part 7 Base part 8 Cam body 9 Rotation axis 10 Large diameter cam face part 11 Small diameter cam face part 12 Transition cam face part 13 Cam contact member 14 Tongue One part

Claims (3)

[Claims] 1. A wiper base which is connected to a motor output shaft and is rotatable about an axis intersecting the glass surface, and a wiper base which is rotatable about an axis substantially parallel to the glass surface with respect to the wiper base. A vehicle constituted by a wiper intermediate portion that is spring-loaded toward the glass surface and a wiper blade portion that is rotatably connected to the wiper intermediate portion about an axis substantially parallel to the glass surface. A device attached to a vehicle body at a position corresponding to a wiper middle portion of a wiper, comprising a cam body rotatable around a rotation axis substantially parallel to a glass surface, and rotation control means for rotating the cam body, The cam body has a large-diameter cam surface portion farthest from the rotation axis and a distance closest to the rotation axis on the side where the large-diameter cam surface portion is substantially diametrically opposed. The cam surface has a small-diameter cam surface portion and a transition cam surface portion between the large-diameter cam portion and the small-diameter cam surface portion, and when the cam body rotates, the large-diameter cam surface portion and the front and rear thereof are extremely narrow. An adhering ice removing device for a vehicle wiper, wherein the cam body comes into contact with the wiper intermediate portion only within a range to lift the wiper intermediate portion from a glass surface. 2. The ice removing device for vehicle wiper according to claim 1, wherein the cam body has a wedge shape. 3. The adhering ice removing device for a vehicle wiper according to claim 1, wherein the cam body has a lever shape.