JPH05229405A - Protective cover of wiper - Google Patents

Abstract

PURPOSE:Not to damage rubber member of a protective cover and to use desir able substance as blade rubber material. CONSTITUTION:The protective cover 5 of a wiper is provided with a first groove 6a formed thereon into which wiper blade metal fittings 2 are inserted, a second groove 6b formed below the first groove 6a and into which edge nails 2a, 2b of the wiper blade metal fittings 2 and a plate ribbon 7 are inserted being stacked, and the third groove 6c formed below the second groove 6b and into which base part 4a of the blade rubber 4 is inserted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiper protective cover for protecting a wiper blade for a vehicle from snow and freezing in a cold region and preventing its function from being deteriorated.

[0002]

2. Description of the Related Art In a region with a lot of snow in winter, snow or ice easily enters the operating portion of a wiper attached to a vehicle and freezes, resulting in inoperability. Therefore, in order to protect the wiper blade from snow and freezing, the entire wiper blade fitting is covered with a tubular protective cover. Conventionally, when attaching the protective cover to the wiper blade,
The claws of the wiper blade metal fittings (lever) were U-shaped, and both ends of the plate-shaped ribbon (vertebral) were held and slid into the protective cover. Further, the protective cover and the blade rubber were integrally molded.

[0003]

In the above prior art, since the claws of the wiper blade fitting (lever) are U-shaped and both ends of the plate-shaped ribbon are held, the C-shaped claws at both ends are convex. Then, there is a problem that the rubber member of the outer protective cover is damaged due to the protrusion to the outside.
Further, in the prior art, the protective cover and the blade rubber are integrally molded with the same quality of rubber, so that the material of the blade rubber is the same as the material of the protective cover, which is not suitable as the material of the portion in contact with the glass. There was a problem.

Therefore, the present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to prevent the rubber member of the protective cover from being damaged and to use the material of the blade rubber. It is an object of the present invention to provide a protective cover for a wiper which can be preferably used as a material for a portion in contact with glass.

[0005]

To achieve the above object, in the present invention, a rubber protective cover for protecting a wiper blade fitting is formed on the upper portion of the protective cover,
A first groove into which the wiper blade fitting is inserted, and a claw portion formed under the first groove and below the first groove, and a tabular ribbon is inserted under the claw portion in a stacked manner. It has a second groove and a third groove formed below the second groove and into which the base of the blade rubber is inserted. further,
Forming the protective cover and the blade rubber separately,
Make the density of the blade rubber denser than that of the protective cover.

[0006]

In the present invention, three grooves are formed inside the protective cover, and the claw portion of the wiper blade fitting (lever) and the plate-shaped ribbon are inserted in the second groove so that they are inserted.
There are no convex parts on both ends of the plate ribbon (vertebral),
It does not damage the rubber member of the outer protective cover. Further, since the protective cover and the blade rubber are formed separately and the blade rubber is inserted into the third groove, the density of the blade rubber can be made higher than that of the protective cover. As a result, it is possible to attach the blade rubber, which is preferable as the material of the portion in contact with the glass, to the protective cover.

[0007]

Embodiments of the present invention will be described with reference to the drawings. First, the structure of the wiper blade will be described with reference to FIGS. 3 and 4. A lever (wiper blade fitting) 2 is attached to the wiper arm 1 by a fitting 3, and the blade rubber 4 attached to the lever 2 is swung by the swing of the wiper arm 1 to wipe the glass surface of the vehicle. Since the lever 2 is fixed to the coupling fitting 3 in the central portion, the lever 2 does not shift in the longitudinal direction.

The lever 2 is covered with a long cylindrical protective cover (boot) 5. Lids (stoppers) 6 are provided at the openings at both ends of the protective cover 5 to prevent water or snow from entering and freezing the lever 2 to cause a malfunction.
Further, the blade rubber 4 is prevented from slipping out of the protective cover 5.

Next, details of the protective cover 5 will be described with reference to FIGS.
Will be explained. The protective cover 5 is made of rubber and is formed into a tubular shape by extrusion molding. in this way,
Since the protective cover 5 is made by extrusion molding,
A large number of protective covers 5 can be manufactured continuously, which is efficient. The protective cover 5 is, as shown in FIG.
It has three grooves 6a, 6b, 6c.

As shown in FIG. 1 (b), the lever 2 is inserted into the upper first groove 6a. Into the second groove 6b formed under the first groove 6a, the claw portions 2a, 2b at the end portion of the lever 2 and the plate-shaped ribbon (vertebral) 7 are inserted in a stacked manner. At this time, the plate-shaped ribbon 7 is placed under the claw portions 2a and 2b of the lever 2. The base portion 4a of the blade rubber 4 is inserted into the third groove 6c below the second groove 6b.

Next, a method of inserting the lever 2, the plate-shaped ribbon 7 and the blade rubber 4 into the protective cover 5 will be described. First, the claw portions 2a and 2b at both ends of the lever 2 are connected to the second groove 6b.
Slide it into. As a result, the body of the lever 2 is
Claws 2a, 2b at both ends of the lever 2 inserted in the groove 6a
Is sandwiched in the second groove 6b as shown in FIG. 1 (c). Next, the plate ribbon 7 is slid under the claws 2a and 2b so as to overlap the claws 2a and 2b at both ends of the lever 2 (see FIG. 1C). Next, the base 4 of the blade rubber 4
Slide a into the third groove 6c. As a result, the tip portion 4b of the blade rubber 4 is attached immediately below the protective cover 5.

FIG. 2 shows a state after the lever 2, the plate-shaped ribbon 7 and the blade rubber 4 are respectively inserted in this way. As shown in FIG. 2, the lever 2 is inserted into the second groove 6b.
Since the claw portions 2a, 2b and the plate-shaped ribbon 7 are inserted so as to overlap each other, both ends of the plate-shaped ribbon 7 are flat and there is no convex portion, and the rubber members 5a, 5b of the outer protective cover 5 are not present. There is no such thing as hurt.

Further, the protective cover 5 and the blade rubber 4 are formed separately, and the blade rubber 4 is attached to the protective cover 5 by inserting the base portion 4a of the blade rubber 4 into the third groove 6c. At this time, it is preferable that the rubber portion of the protective cover 5 is formed of a material having a low density and the blade rubber 4 is a portion that comes into contact with the glass, so that the blade rubber 4 is formed of a material having a high density. The present invention can be applied not only to snow blades but also to other blades.

[0014]

According to the present invention, three grooves are formed inside the protective cover, and the claw portion of the wiper blade fitting (lever) and the plate-shaped ribbon are inserted in the second groove in an overlapping manner. Since there are no convex portions at both ends of the plate ribbon (vertebral), it is possible to prevent the rubber member of the outer protective cover from being damaged. Furthermore, since the protective cover and the blade rubber are separately formed, and the density of the blade rubber is made higher than the density of the rubber of the protective cover, it is possible to attach the blade rubber preferable as the material of the portion in contact with the glass to the protective cover. .

[Brief description of drawings]

1A is a cross-sectional view showing a configuration of a protective cover, FIG. 1B is a diagram showing an object to be inserted into the protective cover, and FIG. 1C is a diagram showing a procedure for inserting the protective cover. Is.

FIG. 2 is a sectional view showing a protective cover after insertion.

FIG. 3 is an external view showing the overall configuration of a protective cover.

FIG. 4 is a diagram showing an internal configuration of a protective cover.

[Explanation of symbols]

 1 Wiper arm 2 Lever 4 Blade rubber 6 Groove 7 Plate ribbon

Claims (2)

[Claims] 1. A rubber protective cover for protecting a wiper blade fitting, a first groove formed in an upper portion of the protective cover, into which the wiper blade fitting is inserted, and the first groove.
Formed under the groove of the wiper blade metal fitting, a second groove into which the tabular ribbon at the end of the wiper blade fitting and the tabular ribbon are inserted under the claw, and formed under the second groove. , A third groove into which the base of the blade rubber is inserted, and a protective cover for the wiper. 2. The protective cover for the wiper according to claim 1, wherein the protective cover and the blade rubber are formed separately, and the density of the blade rubber is made higher than that of the rubber of the protective cover.