JPS6332534Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wiper lift-up device.

A vehicle wiper generally wipes by sliding its rubber blade in pressure contact with the glass surface, and therefore the blade rubber is always in pressure contact with the glass surface. The blade rubber is constantly under stress when the wiper is not in use, which shortens its lifespan.

The present invention particularly relates to a lift-up device that extends the life of the blade rubber by lifting and holding the blade rubber from the glass surface when the wiper is not in use.

The wiper lift-up device according to the present invention is
A main body attached to an intermediate position of the length of the wiper arm bead, a leg rotationally connected to the main body via a pin extending substantially in the length direction of the arm piece, and rotation of the leg with respect to the main body is restricted. first and second stoppers extending between the legs and the body, a first rotational position defined by the first stopper and a second rotational position defined by the second stopper. and a pad attached to the lower end of the leg so that the wiper blade rubber is spaced apart from the glass surface when the leg is in the first rotation position. It is characterized by being able to be lifted to the position where it is placed.

Preferably, when the wiper is activated when the leg is in the first rotational position and the wiper is in its normal inoperative position, the leg is moved to the second rotational position due to frictional contact between the pad and the glass surface. movement relative to the body in the opposite direction and, under the action of the spring, the legs snap into a second position so that the blade rubber contacts the glass surface.

If the legs are made of two adjustable parts, the lifting height position can be adjusted.

The present invention will be further described below with reference to the accompanying drawings, which illustrate embodiments of the invention.

FIG. 1 is a schematic diagram showing a wiper 1 equipped with a lift-up device 5 according to the invention in an inoperative position, the blade rubber 3 of which is lifted a predetermined distance h away from the glass 4 as shown in FIG. There is. The lift-up device 5 includes a main body 6 attached to the intermediate position of the length of the arm piece 2 of the wiper 1, a leg 7 rotatably attached to the main body 6 via a pin 8, and a rotation of the leg 7 with respect to the main body 6. A first stopper 9 and a second stopper 10 that limit movement, and a pad 14 attached to the lower end of the leg 7
and a tension spring 11 whose ends are attached to the main body 6 and the leg 7 by pins 12 and 13, respectively, the pins 8, 12 and 13 extending substantially in the longitudinal direction of the arm piece 2, i.e. It extends in a direction perpendicular to the paper plane of FIGS. 2 and 3. In addition, stoppers 9 and 10
are shown as protrusions provided on the leg 7 and the main body 6, respectively, but both stoppers may be attached to either the main body or the leg. The position of the leg 7 defined by the first stop 9 (FIG. 2) is the first rotational position, and the position of the leg 7 relative to the body 6 defined by the stop 10 (FIG. 3) ) is named the second rotation position. The spring 11 has a leg 11a that straddles the pin 8 as shown in the figure, and the relationship between the pins 12 and 13 and the pin 8 is such that the pin 8 connects the pins 12 and 13 in the first rotating position as shown in the figure. To the right of the line
The leg 7 moves in a snap-like manner between two stable positions defined as a first and a second pivot position. In this case, the purpose of bending the leg 11a is to bring the intermediate transition point between both stable positions closer to the first rotating position.
If the position shown as 2' is used, even if a spring is used to linearly connect the pins 12' and 13, if the leg 7 is slightly rotated in the direction of arrow B, the leg 7 will be moved by the spring force. It is rotated to the second rotation position.

When the wiper is operated in the position shown in FIGS. 1 and 2, the arm piece 2 moves in the direction of arrow A in FIG. The blade rubber 3 then rotates in the direction of arrow B, and then reaches the position shown in FIG. 3 by the action of the spring 11, where the blade rubber 3 comes into contact with the glass 4 and a normal wiper operation is performed.

In FIGS. 4 and 5, in order to make the distance h between the blade rubber 3 and the glass 4 variable during lift-up, the legs are composed of two parts 17 and 19, and the pin 13 supporting the spring 11 is used as a screw 18 to make the legs 17 and 19 variable. The figure shows the one that has been tightened and fixed.

Figures 6 and 7 show a system in which the adjustable height is not continuous but stepwise, so that unintentional changes in the adjustable height do not occur even if the tightening force of the tightening screw is not excessive. .

[Brief explanation of drawings]

FIG. 1 is a perspective view of a wiper equipped with a lift-up device according to the present invention. Figure 2 shows the arrow in Figure 1 -
A first pivoted position is shown in an end view looking in the direction. FIG. 3 is an end view similar to FIG. 2 showing a second rotational position. FIG. 4 is a partial end view showing another embodiment of the present invention. FIG. 5 is a side view of FIG. 4. FIG. 6 is a parts diagram showing another modification of FIG. 5. FIG. 7 is a partial assembly diagram using the parts shown in FIG. 6. 1: Wiper, 2: Arm piece, 3: Blade rubber, 4: Glass, 6: Main body, 7: Legs, 8:
pin, 9: first stopper, 10: second stopper, 11: spring, 14: pad.

Claims (1)

[Scope of utility model registration request] A main body attached to an intermediate position of the length of the wiper arm bead, a leg rotationally connected to the main body via a pin extending substantially in the length direction of the arm piece, and rotation of the leg with respect to the main body is restricted. First thing to do
and a second stop, a first stop extending between the leg and the body and defined by the first stop.
a spring for snapping the leg between a pivot position and a second pivot position defined by a second stop; and a pad attached to the lower end of the leg, 1. A lift-up device for a wiper, characterized in that when the wiper is in one rotational position, the blade rubber of the wiper is lifted to a position spaced apart from the glass surface.