KR100732691B1 - A wipe blade for the vehicle - Google Patents

Abstract

A wiper blade for a vehicle is provided to improve adhesion with a front glass to enable more clear wiping by having uniform power over a whole section of the wiper blade. A wiper blade(100) for a vehicle includes a protector(20), a cleansing rubber(10), a vertebras assembly(30), and a base(40). The protector has a pair of side walls(22a,22b) of which upper and lower end parts are bent inward, and is divided into an upper inserting part and a lower inserting part by a partition(24) between the side walls. The cleansing rubber has grooves(12) facing each other in a lengthwise direction. The grooves are inserted into the lower inserting part of the protector. The vertebra assembly is inserted into the upper inserting unit of the protector. The base is coupled at a center of the protector. The vertebra assembly has an original curvature, consists of a first vertebra(30a) having a first coupling hole(32a) in a center, and a second vertebra(30b) having length and curvature smaller than the length and curvature of the first vertebra and having a second coupling hole(32b) in a center, arranges the second vertebra at one side of the first vertebra to make the first coupling hole and the second coupling hole face each other, and couples a coupling member(34) by penetrating the first coupling hole and the second coupling hole.

Description

Automotive wiper blades {A WIPE BLADE FOR THE VEHICLE}

1 is a perspective view of a wiper blade according to an embodiment of the present invention.

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

3 is a perspective view showing the protector of the wiper blade according to the embodiment of the present invention.

4 is an enlarged cross-sectional view seen in the direction of an arrow from the line A-A of FIG.

FIG. 5 is an enlarged cross-sectional view seen in the direction of the arrow in the B-B line of FIG.

6 and 7 are reference diagrams showing a conventional flat wiper blade.

8 is a graph showing experimental results for a conventional flat wiper blade.

The present invention relates to a vehicle wiper blade, and more particularly, by partitioning the structure of the protector so as to form an upper inserting portion and a lower inserting portion, while fitting the cleaning rubber to the lower inserting portion of the protector, the upper inserting By stacking and fitting a plurality of vivelas having different curvatures to the part, the force transmitted to the wiper blades by the plurality of vivera assemblies fitted to the upper insertion part of the protector is uniformly distributed throughout the blades. The present invention relates to a vehicle wiper blade in which the adhesion of the wiper blade is greatly improved.

In general, a wiper device for washing down rainwater flowing on the windshield of a vehicle or removing other foreign matter transmits the driving force of the wiper motor installed in the vehicle to the wiper arm via a link mechanism, and the wiper arm is at a predetermined angle. It is configured to reciprocate. In particular, the wiper blade is detachably installed at the tip of the wiper arm to remove rainwater or other foreign matter that flows to the front glass of the vehicle while reciprocating left and right while the cleaning rubber is in close contact with the front glass of the vehicle. It is.

However, in the conventional wiper blade, the lifting speed of the vehicle increases due to the increase in the air flow rate, so that a floating phenomenon occurs from the windshield. In this manner, when the floating phenomenon occurs, the wiper blade is spaced apart from the vehicle windshield so that the wiping performance is deteriorated. Recently, in order to solve such a problem, a number of flat blades equipped with a spoiler having a predetermined curvature and inclined in the driving direction have been disclosed. As described above, while the flat blade disclosed in the related art has relatively good adhesion to the vehicle windshield, it is also excellent in preventing injuries (or lifting) while driving. Applicants have studied the flat blades for a long time according to the current trend as described above, and as a result, as shown in Figs. ) And developed a flat blade that can combine the spoiler (10) by a simple operation. The developed flat wiper blade is filed with the Republic of Korea Patent Application 10-2004-0090171 and registered on July 12, 2000 Is in the state. On the other hand, the Applicant, when testing or carrying out the patented invention, has a relatively large wiper blade length, the force transmitted from the wiper arm to the wiper blade is not uniform over the entire wiper length, in particular 1/6 of the wiper blade. Adhesion to the vehicle glass is significantly reduced at the points and 5/6 points, and as a result, it has been found that the wiping performance of the 1/6 and 5/6 points is lowered as compared to the center and end portions of the wiper blades. In this regard, Figure 8 shows the experimental results for a flat blade 12 inches long, which shows the pressure distribution over the entire wiper when a certain load is applied to the center of the wiper blade. Referring to FIG. 8, it can be seen that the pressure distribution characteristics are high at the center and the distal end of the wiper blade, but very low at the 1/6 and 5/6 points of the wiper. Applicant has conducted various experiments to solve the problems of the conventional flat blade, and as a result, instead of using the conventional wide and one-layer structure of the vivela, instead of using the stacked vivera in multiple layers, The 1/6 and 5/6 points of the wiper blades were complemented by a double stacked additional vivela to realize a significant improvement in adhesion. For example, in FIG. 8, 1/6, which was weak in the conventional pressure distribution characteristics by configuring the bibtra in a double layer so that the distal end portions of the vitra were further positioned at the 1/6 and 5/6 points having a low pressure distribution. The 5/6 point can be complemented. On the other hand, if the conventional wiper blade is no longer used due to worn out rubber, the replacement of the rubber was not easy to replace the entire wiper blade, as a result the operator had to bear a considerable cost due to regular replacement of the wiper. This is due to the problem that the end cap is firmly fixed in the case of the conventional wiper blade, so that the end cap is not easily disassembled.

Accordingly, the present applicant supplements the point showing the weak pressure distribution characteristics by using a plurality of vestra to uniformly transmit the force throughout the blade, and at the same time, a simple that can accommodate the cleaning rubber and a plurality of vestra. They have developed a protector for the structure, and have also developed a wiper blade that allows the user to easily replace the cleaning rubber by improving the structure of the end cap.

The present invention has been made in order to solve the above problems, by stacking and combining a plurality of different vtivera with different lengths and curvatures to ensure a uniform force is transmitted over the entire section of the wiper blade, adhesion to the vehicle windshield To improve the purpose.

An object of the present invention is to improve the structure of the protector to be partitioned into an upper insertion portion and a lower insertion portion, while fitting the cleaning rubber to the lower insertion portion of the protector, and at the same time a plurality of vti different curvature in the upper insertion portion It is to be able to easily fit by stacking the bra.

The present invention has a cap cover that can be opened and closed on the outside of the end cap, so that the operator can easily replace the cleaning rubber by opening and closing the cap cover without removing the end cap itself when the cleaning rubber needs to be replaced. The purpose.

In order to achieve the above object, the embodiment of the present invention, in the vehicle wiper blade, the upper insertion portion by a pair of side walls disposed to face each other and the upper and lower end portions are bent inward and formed in the middle of the side wall And a protector partitioned into a lower insert; Grooving rubber is formed to face each other in the longitudinal direction of both sides and the groove is fitted to contact the bent portion of the lower insertion portion of the protector; Vivera assembly is fitted to the upper insert portion of the protector; And the base is fastened to the middle portion of the protector; discloses a vehicle wiper blade comprising a.

Preferably, the protector side wall is continuously formed such that the groove has a predetermined depth in the longitudinal direction thereof.

More preferably, the vivela assembly has an inherent curvature and has a length and curvature less than the length and curvature of the first vivera and the first vivela having a first fastening hole in the middle thereof and a second fastening in the middle thereof. A ball having a second vivela formed thereon, and arranging the second vivera on one side of the first vivela such that the first fastening hole and the second fastening hole correspond to each other; 2 is assembled by penetrating through the fastening ball.

Most preferably, the vivera assembly is composed of a plurality of vivelas whose length and curvature gradually decrease in the order of stacking in the upward direction.

According to an embodiment of the present invention, the lower end of the protector side wall is further provided with a fastening protrusion to protrude outwards, and the base is divided up and down by a pair of side walls facing each other and the partition wall formed in the middle of the side wall A fitting groove is formed in the lower portion of the pair of side walls, and the fastening protrusion of the protector is fitted to the fitting groove of the base.

Preferably, a fastening groove is formed in the center lower surface of the partition wall, and a fastening groove is formed in a position corresponding to the fastening groove of the base on the upper surface of the partition wall of the protector. The fastening groove of the protector is accommodated in the fastening groove of the protector.

More preferably, there is further provided a bracket comprising a pair of side walls each having a rivet fastening hole formed at a position facing each other and corresponding to each other, and a connecting portion vertically connected to the pair of side walls on an upper surface of one end of the side wall. And covering the bracket on the base so that the side wall of the base is accommodated in the receiving portion between the pair of side walls, and then fitting the fastening member through the rivet fastening hole of the bracket and the fastening hole formed on the side wall of the base. Secure the bracket to the base by the combination.

Most preferably, a center cover fastening hole and a center cover fastening groove are formed at positions corresponding to each other on sidewalls of the bracket, and one protruding hinge of the center cover is rotatably coupled to the center cover fastening hole, and the protruding hinge The center cover is rotated inward of the receiving portion of the bracket on the basis of the portion so that the other protrusion of the center cover is fitted into the center cover fastening groove.

According to a preferred embodiment of the present invention, the protector fitting groove further comprises a spoiler formed on the lower side in the longitudinal direction, and attaches the spoiler to the protector so that the sidewall of the protector is received in the protector fitting groove of the spoiler.

Preferably, further comprising an end cap formed with a receiving groove for accommodating the protector and the spoiler at the same time, the end cap is fitted from both ends with the spoiler attached to the protector.

More preferably, a fastening protrusion is further provided inside the receiving groove of the end cap, and the fastening protrusion is fixed to the recess of the protector in fitting the end cap.

Most preferably, the outer side of the end cap is further provided with an openable cap cover.

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

1 is a perspective view of a wiper blade according to an embodiment of the present invention, Figure 2 is an exploded perspective view of a wiper blade according to an embodiment of the present invention. 3 is a perspective view showing the protector of the wiper blade according to the embodiment of the present invention. 4 is an enlarged cross-sectional view viewed from the arrow line A-A of FIG. FIG. 5 is an enlarged cross-sectional view seen in the direction of the arrow in the B-B line of FIG.

1 to 3, the wiper blades 100 according to the embodiment of the present invention are disposed to face each other, and the pair of sidewalls 22a and 22b having the upper and lower end portions bent inward and the sidewalls 22a, The protector 20 partitioned into the upper insertion part and the lower insertion part by the partition 24 formed in the middle of 22b), the grooves 12 facing each other in both longitudinal directions are formed and the grooves 12 are the protector 20 Washing rubber 10 is fitted to contact the bent portion (25a, 25b) of the lower insertion portion of the), Vivera assembly 30 and the protector 20 is fitted to the upper insertion portion of the protector 20 The base 40 is fastened to the middle portion of the. Hereinafter, each structure will be described in detail.

Structure of the protector 20

3 is a perspective view showing the protector of the wiper blade according to the embodiment of the present invention. As shown in Fig. 3, the protectors 20 are arranged so as to face each other and the pair of side walls 22a and 22b each having upper and lower ends bent inward and partition walls formed in the middle of the side walls 22a and 22b. 24) it is partitioned into an upper insert and a lower insert. That is, the upper insertion portion is formed by the upper side of the pair of side walls 22a and 22b, the partition wall 24, and the upper bent portions 23a and 23b, and the lower side of the pair of side walls 22a and 22b, the partition wall 24, The lower insert portion is formed by the lower bent portions 25a and 25b. As shown in Figure 2, the upper insertion portion of the protector 20 is fitted with the Vivera assembly 30, the lower insertion portion is fitted with the cleaning rubber 10 is fitted. The cleaning rubber 10 is fitted to the lower insertion portion as shown in FIG. 4, in which case the grooves 12 are formed to face each other in the longitudinal direction of both sides of the cleaning rubber 10. It is in contact with the bent portions 25a, 25b of the lower insertion portion.

Referring to FIG. 3, grooves 28 are continuously formed on both sidewalls 22a and 22b of the protector 20 in the longitudinal direction thereof. The groove 28 has a protector 20 according to the curvature of the vivera assembly 30 when the vivera assembly 30 designed to have a predetermined curvature is fitted to the upper insertion portion of the protector 20. To bend easily. That is, when the vertibular assembly 30 is fitted to the protector 20, the grooves 28 continuously formed on the sidewalls 22a and 22b of the protector 20 are opened, and the protector 20 itself is the curvature of the vertebra. Will bend easily according to.

Vivela  Structure of Assembly 30

Referring to FIG. 2, the vivera assembly 30 has an inherent curvature and a length and curvature of the first vivera 30a and the first vivera 30a having a first fastening hole 32a formed therebetween. It is composed of a second vivera 30b having a smaller length and curvature and a second fastening hole 32b formed therebetween, so that the first fastening hole 32a and the second fastening hole 32b correspond to each other. The second vivera 30b is disposed on one side of the first vivera 30a, and then the fastening member 34 passes through the first fastening hole 32a and the second fastening hole 32b. It is assembled by fastening. Preferably, the vivera assembly 20 may be composed of a plurality of vivelas whose length and curvature gradually decrease in the order of stacking from the upper direction. Thus, by constructing a plurality of vivelas having different curvatures and lengths to construct the vivera assembly, the end portions of the sequentially stacked vivelas complement the 1/6 and 5/6 areas where the adhesion to the vehicle windshield is relatively weak. In addition, the force transmitted from the wiper arm is uniformly transmitted to the entire wiper to increase the adhesion of the wiper blade, and to prevent the wiper blade from injuring even when the vehicle is traveling at high speed.

Structure of the base 40

Referring to FIG. 2, the base 40 is fastened to an intermediate portion of the protector 20. The base 40 is vertically divided by a pair of side walls 42a and 42b facing each other and a partition 44 formed in the middle of the side walls 42a and 42b, and is disposed below the pair of side walls 42a and 42b. The fitting groove 47 is formed. A protector fastening portion 46 is formed on the lower portion of the base 40 by the lower portion of the pair of side walls 42a 42b and the partition wall 44. Accordingly, in fastening the protector 20 to the protector fastening portion 46 of the base 40, the fastening protrusions 26a and 26b formed to protrude outward at the lower end portions of the protector sidewalls 22a and 22b are provided at the base 40. Fasten so as to fit into the fitting groove (47).

Vivela  Assembly 20 is on top of protector 20 Insertion part  Inserted and fixed way

Referring to FIG. 5, a fastening recess 41 formed in a recess is formed in the center lower surface of the partition wall 44 of the base 40, and a fastening recess of the base 40 is formed on the upper surface of the partition wall 24 of the protector 20. A fastening recess 29 is formed at a position corresponding to 41. Therefore, in fitting the vertebra assembly 20 to the upper insertion part of the protector 20 to which the base 40 is fastened, as shown in FIG. The upper and lower protrusions are fixed to the fastening groove 41 of the base 40 and the fastening groove 29 of the protector 20 so as not to be easily released. That is, when the assembly is slowly inserted into the upper insertion portion of the protector 20 during assembly, the upper and lower protrusions of the fastening member 34 are accommodated in the fastening recesses 41 and 29 to be fastened. .

Bracket (50)  rescue

Referring to FIG. 2, the bracket 50 has a pair of sidewalls 52a and 52b formed with rivet fastening holes 58 at positions facing each other and corresponding to each other, and on one end portion of the side walls 52a and 52b. It consists of a connecting portion 54 connected to the side of the pair of the side wall (52a, 52b) perpendicularly to the side. Therefore, it has a structure open to penetrate up and down by the pair of side walls 52a and 52b and the connecting portion 54, and forms a receiving portion between the pair of side walls 52a and 52b. The bracket 50 is placed on the base 40 so that the side wall of the base 40 is received in the receiving portion of the bracket 50, and then the fastening member 53 is attached to the rivet fastening hole 58 and the base of the bracket 50. The bracket 50 is fixed to the base 40 by fitting to penetrate the fastening hole 48 formed on the upper sidewall of the 40. In general, the fastening member 53 is a rivet. A known center clip (not shown) is coupled to this rivet. The wiper arm having an end portion annular to the center clip is fitted to mount the wiper blade to the wiper arm.

As shown in FIG. 2, the center cover fastening holes 56 and the center cover fastening grooves 57 are formed in the sidewalls 52a and 52b of the bracket 50 at positions corresponding to each other. One side protruding hinge 62 of the center cover 60 is rotatably coupled to the center 56 so that the center cover 60 is inward of the receiving portion of the bracket 50 about the protruding hinge 62. Is rotated to the other projection 64 of the center cover 60 is fitted to the center cover fastening groove 57. Therefore, after attaching the wiper arm to the center clip coupled in the bracket 50, by covering the opening exposed to the upper side of the bracket using the center cover 60, the phenomenon in which the wiper arm connection part freezes especially by winter snow. It can prevent it beforehand. In addition, the foreign matter may accumulate on the wiper arm connection portion to eliminate the fear of causing a failure or malfunction.

Spoiler  rescue

1 and 2, the spoilers 70a and 70b are formed with protector fitting grooves 72a and 72b in the lower side thereof in the longitudinal direction. The spoilers 70a and 70b are attached to the protector 20 so that the sidewalls 22a and 22b of the protector 20 are received in the protector fitting grooves 72a and 72b of the spoilers 70a and 70b. In this case, the adhesive may be applied to the protector fitting grooves 72a and 72b of the spoilers 70a and 70b for more firm attachment, and then attached to the protector 20. Preferably, the outer circumferential surfaces of the spoilers 70a and 70b have a streamlined structure inclined in a direction in which the driving wind blows. When the vehicle is driven after the wiper blade having the spoiler attached thereto is mounted on the vehicle, the driving wind blowing from the front part of the vehicle flows through the inclined surface of the spoiler attached to the wiper blade to the rear of the vehicle. The running wind flowing along the inclined surface of the vehicle eventually presses the wiper blades toward the vehicle windshield surface. As a result, the wiper blades remain in close contact with the front windshield of the vehicle, which prevents the wiper blades from swinging or floating during high-speed driving, and effectively prevents rain or other debris from flowing down the windshield of the vehicle. It can be removed.

End cap  rescue

1 and 2, the end caps (80a, 80b) is formed on one side of the receiving groove (not shown) for accommodating the protector 20 and the spoilers (70a, 70b) at the same time. Therefore, the spoilers 70a and 70b are attached to the protector 20 to engage the end caps 80a and 80b from both ends. Fastening protrusions 84 are further provided inside the receiving grooves of the end caps 80a and 80b, and the fastening protrusions 84 are formed at both end portions of the protectors 20 when fitting the end caps 80a and 80b. It is fastened to the groove 28 and fixed. As shown in Figure 1, the outer side of the end cap (80a) is further provided with an openable cap cover (82a). Therefore, in replacing the cleaning rubber 10, it is possible to replace only by opening the cap cover 82a without disassembling the end cap (80a). That is, as shown in Fig. 1, the cap cover 82a is opened, the cleaning rubber 10 is pulled out to the distal end side, and then the new cleaning rubber 10 is inserted into the lower insertion part of the protector 20 and replaced. can do.

Although the present invention has been illustrated and described with reference to certain preferred embodiments, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments. Various changes and modifications will be possible to those skilled in the art. Thus, for example, it will be apparent to one skilled in the art that the configuration of the wiper blade shown in the drawings may be modified or modified without departing from the spirit and scope of the invention, and the invention is limited only by the claims that follow.

According to the wiper blade according to the present invention, the following effects can be obtained.

First, by stacking a plurality of vivelas having different lengths and curvatures, the uniform force is transmitted over the entire section of the wiper blades, thereby improving adhesion to the vehicle windshield, thereby enabling cleaner wiping.

Secondly, by improving the structure of the protector so as to be partitioned into an upper insertion part and a lower insertion part, the washing rubber is fitted to the lower insertion part of the protector, and a plurality of vivelas having different curvatures are stacked on the upper insertion part. Easily fitted to be able to combine.

Third, by providing an open and close cap cover on the outside of the end cap, when the operator needs to replace the cleaning rubber to open and close the cap cover without removing the end cap itself to be able to easily replace the cleaning rubber.

Claims (12)

In the vehicle wiper blade, A protector partitioned into an upper insertion portion and a lower insertion portion by a pair of side walls arranged to face each other and having a top and bottom ends bent inward and a partition wall formed in the middle of the side walls; Grooving rubber is formed to face each other in the longitudinal direction of both sides and the groove is fitted to contact the bent portion of the lower insertion portion of the protector; Vivera assembly is fitted to the upper insert portion of the protector; And And a base fastened to an intermediate portion of the protector. The vivera assembly has an inherent curvature and a first vivera having a first fastening hole in the middle thereof, and a length and curvature smaller than the length and curvature of the first vivela and having a second fastening hole in the middle thereof. The braid is disposed, and the second vivela is disposed on one side of the first vivela so that the first fastening hole and the second fastening hole correspond to each other, and then the fastening member passes through the first fastening hole and the second fastening hole. Vehicle wiper blades, characterized in that assembled by tightening. The wiper blade for a vehicle according to claim 1, wherein grooves are continuously formed on the sidewalls of the protector such that grooves have a predetermined depth in a longitudinal direction thereof. delete 2. The vehicle wiper blade according to claim 1, wherein the vivela assembly is composed of a plurality of vivelas whose length and curvature gradually decrease in the order of stacking from the upper direction. According to claim 1, wherein the lower end of the protector side wall is further provided with a fastening protrusion to protrude outwards, the base is divided up and down by a pair of side walls facing each other and the partition wall formed in the middle of the side wall The fitting groove is formed in the lower portion of the side wall of the pair, the vehicle wiper blade, characterized in that the fastening projection of the protector is fitted to the fitting groove of the base. The fastening groove of claim 5, wherein a fastening groove is formed in a center lower surface of the partition wall, and a fastening groove groove is formed in a position corresponding to the fastening groove of the base on the upper surface of the partition wall of the protector. Vehicle wiper blades are accommodated in the fastening groove of the base and the fastening groove of the protector. 6. The bracket of claim 5, wherein the bracket comprises a pair of sidewalls each having a rivet fastening hole formed at a position facing each other and corresponding to each other, and a connecting portion vertically connected to the pair of sidewalls on an upper surface of one end portion of the sidewall. The bracket further includes the bracket on the base such that the side wall of the base is received in the receiving portion between the pair of side walls, and then the fastening member passes through the rivet fastening hole of the bracket and the fastening hole formed on the side wall of the base. Vehicle wiper blade, characterized in that for fixing the bracket to the base by fitting. The method of claim 7, wherein the side wall of the bracket is formed with a center cover fastening hole and a center cover fastening groove are formed in a position corresponding to each other, the one side projecting hinge of the center cover is rotatably coupled to the center cover fastening hole, the protrusion Vehicle center wiper blade, characterized in that the center cover is rotated in the direction of the receiving portion of the bracket on the basis of the hinge portion to the other projection of the center cover is fitted into the center cover fastening groove. The vehicle according to claim 1, further comprising a spoiler formed at a lower side of the protector fitting groove in the longitudinal direction, wherein the spoiler is attached to the protector so that the sidewall of the protector is received in the protector fitting groove of the spoiler. wiper blade. 10. The vehicle according to claim 9, further comprising an end cap having an accommodating groove for accommodating the protector and the spoiler, wherein the end cap is fitted from both ends with the spoiler attached to the protector. wiper blade. 11. The vehicle wiper blade according to claim 10, wherein a fastening protrusion is further provided inside the receiving groove of the end cap, and the fastening protrusion is fixed to the recess of the protector when fitting the end cap. 12. The vehicle wiper blade according to claim 10 or 11, further comprising an openable cap cover on an outer side of the end cap.

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