KR100813644B1 - Wiper blade - Google Patents

Abstract

The present invention relates to a wiper blade that is coupled to the wiper frame and folded to form a windproof rib, which can more easily form a windproof rib of the wiper blade, reduce the manufacturing cost, the windproof rib is made of an elastic material It is an object of the present invention to provide a wiper blade that allows the inside to be hollow so that the wiper frame can be more easily bent to improve adhesion to the glass surface. The wiper blade according to the present invention for achieving the above object is a wiper frame having a wiper strip, and a pair of opening grooves formed in the longitudinal direction and extending opening grooves formed at its ends, and supporting the wiper strip elastically; And windproof ribs inserted into the opening grooves by hooks formed at both ends thereof and slidingly coupled to the opening grooves, and having a central portion folded to form an inclined surface for windbreak.

Wiper blades, strips, rails, frames, windproof ribs, slopes, bends, hooks

Description

WIPER BLADE {WIPER BLADE}

1 is a perspective view of a vehicle equipped with a general wiper blade.

2 is a front view of a typical wiper blade.

Figure 3 is a perspective view of the wiper blade according to the present invention.

4 is an exploded perspective view of the wiper blade according to the present invention.

5 is a plan view showing a wiper frame of the wiper blade according to the present invention.

6 is a cross-sectional view of the wiper blade according to the present invention.

Figure 7 is a perspective view of a portion of the side of the wiper blade according to the present invention.

<Explanation of symbols for the main parts of the drawings>

50: wiper blade 60: wiper strip

62: rail groove 64: blade

70: wiper frame 72: rail

74: expansion groove 76: opening groove

78: expansion opening groove 79: protrusion

80: windproof rib 82: inclined surface

84: curved surface 86: hook

88: side guide 89: groove

90: joint

The present invention relates to a wiper blade mounted on a wiper device of an automobile to wipe a glass surface, and more particularly, to a wiper blade which is coupled to a wiper frame and folded to form a windbreak rib.

In general, a vehicle is provided with a wiper blade for wiping the glass surface in order to prevent blurred vision due to contamination of the glass surface due to air dust or weather conditions. The wiper blade rotates at a predetermined angle while being in close contact with the glass surface and cleans the glass surface to secure a driver's watch for safe driving.

1 is a perspective view of a vehicle equipped with a general wiper blade, and FIG. 2 is a front view of a general wiper blade.

1 and 2, a conventional wiper device is provided on one side of the vehicle body 10 and is rotated left and right by a wiper motor (not shown), and the wiper arm. And a wiper blade 20 equipped with a wiper strip 30 mounted on the 15 to move in close contact with the glass surface 12 and to wipe the glass surface 12.

The wiper blade 20 is coupled to the wiper arm 15 and pivoted at a predetermined angle according to the driving of the wiper motor. To this end, the wiper blade 20 includes a main link 22 coupled to the wiper arm 15, and the main link 22 has a plurality of main links 22 for uniformly transferring the pressure of the wiper arm 15. The middle link 24 is coupled to the pin 25, and the middle link 24 is coupled to the pin 27 by a plurality of sublinks 26 for connecting with the wiper strip 30. In addition, a clip 28 is formed at both ends of the sublink 26 to be coupled to the rail 32 formed on the wiper strip 30.

In addition, the wiper blade 20 is a connector 35 is formed on the main link 22 for coupling with the wiper arm (15).

The above-described conventional wiper blades not only have a complicated structure for fixing the wiper strip, but also a complicated assembly process, thereby increasing the assembly process time, thereby lowering the productivity of the product, and having a high windproof structure. There is a problem that the wiper blade is floating by the wind during driving, which is a factor that inhibits the safe driving because the glass surface is not cleaned.

In order to solve this problem, a blade having a separate windproof member coupled to the upper portion of the wiper frame has been proposed, but there is still room for further improvement.

An object of the present invention is to solve the above-mentioned problems of the prior art, it is possible to more easily form the windshield rib of the wiper blade, to reduce the manufacturing cost, the windshield rib is made of an elastic material and the inside of the wiper frame to be hollow This can be more easily bent to provide a wiper blade that improves adhesion to the glass surface.

The wiper blade according to the present invention for achieving the above object is a wiper frame having a wiper strip, and a pair of opening grooves formed in the longitudinal direction and extending opening grooves formed at its ends, and supporting the wiper strip elastically; And windproof ribs inserted into the opening grooves by hooks formed at both ends thereof and slidingly coupled to the opening grooves, and having a central portion folded to form an inclined surface for windbreak.

Here, the windbreak ribs may include side guides formed at both ends of the longitudinal direction to surround and fix both ends of the wiper frame. In addition, protrusions may be formed at both ends of the wiper frame, and grooves may be formed in the side guides to which the protrusions are inserted. Here, the side guide may be formed to be separated from the wind rib. In addition, the windbreak rib may be formed of a plurality of members separated along the longitudinal direction.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a perspective view of the wiper blade according to the present invention, Figure 4 is an exploded perspective view of the wiper blade according to the present invention.

3 and 4, the wiper blade 50 according to the present invention is in close contact with the glass surface (12 of FIG. 1) and wiper strip 60 for wiping the dirt on the glass surface to the wiper frame 70. Combined.

The wiper strip 60 has rail grooves 62 formed at both sides of an upper portion thereof, and a blade portion 64 directly contacting the glass surface is integrally formed at the lower portion thereof. At this time, the glass surface is formed of a predetermined curved surface, the blade portion 64 is in close contact with the glass surface as the wiper strip 60 elastically pressurizes the wiper strip 60.

In addition, a joint 90 for coupling with the wiper arm of the vehicle (15 of FIG. 1 and FIG. 2) is coupled to the center upper portion of the wiper frame 70.

5 is a plan view illustrating a wiper frame of a wiper blade according to the present invention, wherein the wiper frame 70 has a rail 72 formed in a central portion thereof in a longitudinal direction thereof, and one end of the rail 72 has the wiper strip ( The expansion groove 74 is formed by increasing the size of the rail 72 to a predetermined size so that the rail groove 62 of the 60 can be inserted.

In addition, the wiper frame 70 has a pair of opening grooves 76 formed at both sides of the rail 72.

On the other hand, the opening groove 76 is coupled to the wind-proof ribs 80 to form an inclined surface 82 for wind-proof.

6 is a cross-sectional view of the wiper blade according to the present invention.

The windbreak rib 80, as shown in Figure 6, is formed of an elastic member, is provided in the form of a flat plate, both ends are coupled to the pair of opening grooves 76, respectively, as the intermediate portion is folded in front An inclined surface 82 is formed, and a rear surface forms a curved surface 84. In this case, the inclined angle of the inclined surface 82 is set in the windbreak rib 80 according to the distance between the pair of opening grooves 76.

In addition, the windbreak rib 80 has a hook 86 is formed at both ends, the separation is prevented as the hook 86 is caught in the opening groove (76). In addition, one end of the opening groove 76 is formed with an expansion opening groove 78 having an enlarged opening size for easily coupling the hook 86.

In addition, the windbreak rib 80, in order to preset the folded form, it is preferable to fold and fix the portion to be folded before the windbreak rib 80 is coupled to the wiper frame 70, the windbreak rib ( It is also possible to mold so that the folded state is maintained during molding of 80).

The windproof ribs 80 formed as described above are formed in an empty form, and side guides 88 for closing the inside of the windproof ribs 80 are formed at both ends in the longitudinal direction of the windproof ribs 80.

7 is a perspective view showing a part of the side of the wiper blade according to the present invention.

In addition, as shown in FIG. 7, the side guides 88 surround and fix both ends of the wiper frame 70 so that both ends of the windbreak rib 80 are separated from both ends of the wiper frame 70. Do not do it.

To this end, the wiper frame 70 has protrusions 79 formed at both ends thereof, and the side guides 88 have grooves 89 formed at positions corresponding to the protrusions 79. In addition, when the side guide 88 wraps and fixes both ends of the wiper frame 70, the groove portion 89 is inserted into the groove portion 89 so that the side guide 88 is inserted into the groove portion 89. ) Do not fall out easily.

In the embodiment of the present invention, the side guide 88 has been described for the embodiment formed integrally with the windbreak rib 80, the side guide 88 is a member separate from the windbreak rib 80 It can be formed as. In addition, the side guide 88 formed as a separate member is coupled to both ends of the wiper frame 70 and the windbreak rib 80, it can be fixed to each other.

In addition, the windbreak rib 80 may be formed of a single member or a plurality of members. For example, the windbreak rib 80 may be formed of two members separated along the longitudinal direction with respect to the central portion.

Looking at the action of the wiper blade of the present invention configured as described above are as follows.

First, the windbreak rib 80 is coupled to the opening groove 76 of the wiper frame 70. The windproof ribs 80 are provided in an unfolded state, and both ends of the windproof ribs 80 are inserted into and coupled to the opening grooves 76. At this time, the hook 86 formed at both ends of the wind-proof rib 80 is inserted into the expansion opening groove 78 of the opening groove 76, and then the hook 86 is formed along the opening groove 76. The windbreak rib 80 is moved to slide.

Next, the side guides 88 formed at both ends of the windbreak rib 80 are coupled to surround both ends of the wiper frame 70. In this case, the protrusions 79 formed at both ends of the wiper frame 70 are inserted into the recesses 89 of the side guide 88.

On the other hand, the wiper frame 70 is coupled to the wiper strip 60 in close contact with the glass surface and wiping the glass surface. The wiper strip 60 is inserted into the expansion groove 74 formed at the end of the rail 72 of the wiper frame 70 after the upper rail groove 62, the sliding wiper frame 70 and the Combined.

As such, the windbreak rib 80 is folded as both ends are coupled to the wiper frame 70, and the front surface forms an inclined surface 82, and the rear surface forms a curved surface 84. In addition, the inclined surface 82 is formed in the advancing direction of the wiper blade 50. Therefore, the wind hits the inclined surface 82 of the wiper blade 50 when the vehicle is driven, and the wiper blade 50 is in close contact with the glass surface.

As described above, the wiper blade according to the present invention has been described with reference to the illustrated drawings, but the present invention is not limited to the embodiments and drawings described above, and the present invention is within the scope of the appended claims. Of course, various modifications and variations can be made by those skilled in the art.

The wiper blade according to the present invention configured as described above can more easily form the windproof rib of the wiper blade, the assembly is simple, the productivity can be improved to reduce the manufacturing cost, the windproof rib is made of an elastic material and the inside is As it is hollow, the wiper frame can be bent more easily, thereby improving adhesion to the glass surface. Accordingly, the dirt on the glass surface can be cleaned more cleanly, which can help to improve safe driving.

Claims (6)

With wiper strips, A wiper frame which elastically pressurizes and supports the wiper strip and has a pair of opening grooves formed in a longitudinal direction and an expansion opening groove formed at an end thereof; The windshield wiper blade, characterized in that the hook is formed at both ends is inserted through the expansion opening groove slidingly coupled to the opening groove, the center portion is folded and forming an inclined surface for the wind. delete The method according to claim 1, The windshield ribs are formed at both ends in the longitudinal direction of the wiper blade comprising a side guide for wrapping and fixing both ends of the wiper frame. The method according to claim 3, Protruding portions are formed at both ends of the wiper frame, The side guide has a wiper blade, characterized in that the groove is formed by the projection is inserted. The method according to claim 4, The side guide is detachable from the windshield rib, characterized in that the wiper blade. The method according to any one of claims 1, 3, 4 and 5, The windshield rib is a wiper blade, characterized in that consisting of a plurality of members separated along the longitudinal direction.

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