KR100840000B1 - Assembly for wiper blade for cleaning windows of motor vehicles - Google Patents

Abstract

An assembly for a wiper blade for cleaning a windshield of a vehicle is provided to more firmly couple a connection unit and a strip assembly using a part like a clip member. An assembly for a wiper blade for cleaning a windshield of a vehicle includes a strip assembly(20) and a connection unit(30). The strip assembly is arranged facing the windshield of the vehicle for removing foreign substances on the windshield and includes a wiper strip and a supporting member(27). The wiper strip includes a wiper rib(24) and a groove. The wiper rib contacts the windshield. The supporting member gives strength and elastic force to the wiper strip for closely contacting the wiper strip with the windshield. The connection unit is fixed on the center of the strip assembly and connects the strip assembly detachably to a wiper arm.

Description

Assembly for wiper blade for cleaning windows of motor vehicles

1 is a view showing a schematic configuration of a blade assembly for cleaning a conventional vehicle glass.

FIG. 2 is a schematic cross-sectional view taken along the line II-II of FIG. 1.

3 is a schematic perspective view of a blade assembly for automobile glass cleaning according to a preferred embodiment of the present invention.

FIG. 4 is a schematic perspective view of the portion “A” shown in FIG. 3.

5 is a schematic exploded perspective view of FIG. 4.

FIG. 6 is a schematic exploded perspective view from another direction of FIG. 5. FIG.

FIG. 7 is a schematic plan view of the blade assembly for automobile glass cleaning shown in FIG. 3. FIG.

FIG. 8 is a schematic cross-sectional view taken along the line VII-VII of FIG. 7.

9 is a view for explaining the processing method of FIG.

FIG. 10 is a cross-sectional view taken along line VII-VII of FIG. 7.

FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG. 9.

FIG. 12 is an enlarged view of the coupling hole site shown in FIG. 10.

13 to 15 are views showing another embodiment of the site shown in FIG.

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

10 ... blade assembly for car glass cleaning

20 ... strip assembly

22 ... wiper strip 24 ... wiper lip

25 Groove 27 Support member

28 ... Mating hole 30 ... Connectors

32 Projection 34

40 ... clip member 45 ... jamming jaw

100 ... wiper arm X ... longitudinal direction of wiper lip (support member)

Y ... width of supporting member

The present invention relates to a blade assembly for automobile glass cleaning, and more particularly, to the assembly of the strip assembly and the connection portion of the wiper arm of the blade assembly for automobile glass cleaning, to which a flat blade is applied, in which a retainer and a blade are integrally coupled. A blade assembly for automobile glass cleaning, the structure of which is improved to improve quality.

The blade assembly for car glass cleaning is a vehicle's convenience and active safety device, which is generally installed to remove foreign objects or rainwater from the windshield surface of the car to secure the driver's view. One.

In general, a blade assembly for cleaning a glass of a car is a wiper strip having rubber elasticity in sliding contact with a glass of a vehicle, a support member for elastically supporting the strip, and a connection for firmly fixing the wiper strip to a wiper arm. The assembly includes a retainer and a connecting device. In general, the retainer has a tournament structure in order to accommodate the contact error between the wiper strip and the glass of the vehicle due to the difference in curvature of the glass of the automobile between the wiper strip and the retainer. This tournament structure has a space between the wiper strip and the retainer. Recently, road conditions have been improved to enable high-speed driving, and as the performance of automobiles has been advanced, problems of the conventional blade assembly for cleaning glass for automobiles have been pointed out. That is, when the wiper is operated during a high-speed driving of more than 160km, the lifting force acts on the blade assembly for cleaning the glass of the car, so that the contact with the glass of the car is not made properly, thereby preventing the wiping role from being performed properly. In order to solve this problem, research has been conducted on a new concept of a vehicle glass cleaning blade assembly called a flat blade without a retainer structure. Prior arts related to the blade assembly for automobile glass cleaning of such a concept include US Patent No. 6,295,690, US Patent No. 6,516,491, and the like.

1 is a view showing a schematic configuration of a blade assembly for cleaning a vehicle glass in the form of such a flat blade. FIG. 2 is a schematic cross-sectional view taken along the line II-II of FIG. 1. 1 and 2, a blade assembly 1 for cleaning a vehicle glass in the form of a conventional flat blade includes a strip assembly 2 and a connecting device 3.

The strip assembly 2 comprises a wiper strip 4 and a support member 5. The wiper strip 4 comprises a wiper lip 6 and a groove 7. The wiper lip 6 is a part which is installed in sliding contact with the glass of the vehicle. The groove 7 is formed on the side of the body part integrally extending from the wiper lip 6. The groove 7 is usually provided with a pair. The grooves 7 are formed on the side of the body of the wiper strip 4 and extend in the longitudinal direction of the wiper strip 4. The support member 5 is made of a metal material having a spring elasticity. The support member 5 generally has a strip shape. A part of the supporting member 5 is accommodated in the groove 7. The other part of the support member 5 is exposed out of the groove 7. The support member 5 supports the wiper strip 4 to be in good contact with the glass of the vehicle and at the same time serves to give stiffness to the wiper strip 4.

The connecting device 3 is installed in the center of the blade assembly 2. The connecting device is provided to detachably connect the wiper arm 100 and the strip assembly 2. The connecting device 3 is coupled to the support member 5. More specifically, the connecting device 3 is fixed to the outer edge of the support member 5 which is not accommodated in the groove 7 of the wiper strip 4 but exposed outside the groove 7.

The blade assembly 1 for cleaning a vehicle glass having such a structure has some problems. That is, the problem is as follows. First, since the connection device 3 is fixed to the outer edge of the support member 5, there is a problem that it is difficult to properly maintain the gap between the support members 5. Second, there is a problem in that the connection device 3 can not restrict the flow when the support member (5) flows in the longitudinal direction. The connecting device 3 must be fixed in a fixed position to securely connect the strip assembly 2 to the wiper arm 100. By the way, the blade assembly (1) for the vehicle glass cleaning in the prior art has a problem that the assembly quality of the connection device 3 is bad because the reference position for the assembly of the connection device 3 is not provided.

The present invention has been made in order to solve the above problems, the blade assembly for automobile glass cleaning, the structure is improved to significantly improve the assembly quality of the connection device by changing the coupling structure of the connection device fixed relative to the strip assembly. The purpose is to provide.

In order to achieve the object as described above, the blade assembly for automobile glass cleaning according to the present invention comprises: a strip assembly disposed to face the glass of the vehicle to remove foreign substances on the glass surface; And

A blade assembly for cleaning a glass of a vehicle comprising: a connecting device fixed to a center portion of the strip assembly and detachably connected to a wiper arm,

The strip assembly,

A wiper strip having a wiper lip disposed in sliding contact with the glass of the vehicle and a plurality of grooves integrally extending from the wiper lip and extending side by side in the longitudinal direction of the wiper lip on both sides; And

And a plurality of support members, each of which is accommodated in each of the groove parts, the other part of which is installed to be exposed to the outside of the groove part, is disposed in the longitudinal direction of the wiper strip, and has a spring elasticity.

Each support member has a plurality of coupling holes,

The connecting device is characterized in that it is relatively fixed to the support member having a plurality of protrusions inserted into the coupling holes so as to couple the support members at a constant interval.

In addition, in order to achieve the object as described above, the blade assembly for automobile glass cleaning according to the present invention, the strip assembly disposed to face the glass of the vehicle to remove foreign matter on the glass surface; And

A blade assembly for cleaning a glass of a vehicle comprising: a connecting device fixed to a center portion of the strip assembly and detachably connected to a wiper arm,

The strip assembly,

A wiper strip having a wiper lip disposed in sliding contact with the glass of the vehicle and a plurality of grooves integrally extending from the wiper lip and extending side by side in the longitudinal direction of the wiper lip on both sides; And

And a plurality of support members, each of which is accommodated in each of the groove parts, the other part of which is installed to be exposed to the outside of the groove part, is disposed in the longitudinal direction of the wiper strip, and has a spring elasticity.

The connection device is characterized in that it is relatively fixed to the support members by a plurality of clip members having elasticity.

The support member is provided with a pair so that the wiper strip is disposed therebetween one by one on both sides,

Preferably, two coupling holes provided in the support members are spaced apart in the longitudinal direction of the support member.

Each of the protrusions is inserted into the coupling hole such that the connecting device is prevented from moving relative to the width direction of the support member, and at least some of the protrusions are both sides of the inner peripheral surface of the coupling member in the width direction side of the inner peripheral surface of the coupling hole. It is preferable that it is supported by contact with.

At least one of the coupling holes provided in each of the support members is preferably a long hole in the longitudinal direction of the support member.

Preferably, each of the protrusions is in contact with a portion of the inner peripheral surface of the longitudinal direction of the support member among the inner peripheral surfaces of the coupling hole to which the protrusion is coupled, so that the connection device is prevented from moving relative to the longitudinal direction of the support member.

The protrusions are preferably caulked to prevent deviation from the coupling holes in the state inserted into the coupling holes.

Preferably, the connection device is relatively fixed to the support members by a plurality of clip members having elasticity.

The clip member is preferably provided with a pair to be arranged one on each side with the wiper strip in between.

The clip member may be assembled to or detachable from the connecting device in a state in which the elastic member is elastically deformed by an external force, and the fixing member may be relatively fixed to the connecting member and the supporting member by an elastic restoring force.

The clip member is provided with a locking jaw,

Preferably, the connection device includes a locking part corresponding to the locking part such that the clip member is not separated from the connection device by mutual coupling of the locking step and the locking part.

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

3 is a schematic perspective view of a blade assembly for automobile glass cleaning according to a preferred embodiment of the present invention. FIG. 4 is a schematic perspective view of the portion “A” shown in FIG. 3. 5 is a schematic exploded perspective view of FIG. 4. FIG. 6 is a schematic exploded perspective view from another direction of FIG. 5. FIG. FIG. 7 is a schematic plan view of the blade assembly for automobile glass cleaning shown in FIG. 3. FIG. FIG. 8 is a schematic cross-sectional view taken along the line VII-VII of FIG. 7. 9 is a view for explaining the processing method of FIG. FIG. 10 is a cross-sectional view taken along line VII-VII of FIG. 7. FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG. 9. FIG. 12 is an enlarged view of the coupling hole site shown in FIG. 10.

3 to 12, the blade assembly 10 for automobile glass washing according to an exemplary embodiment of the present invention includes a strip assembly 20 and a connection device 30.

The strip assembly 20 is arranged to face the glass of the vehicle and is provided to remove foreign substances on the glass surface. The strip assembly 20 includes a wiper strip 22 and a support member 27.

The wiper strip 22 includes a wiper lip 24 and a groove 25.

The wiper lip 24 is a part which is installed in sliding contact with the glass of the vehicle. The wiper lip 24 serves to directly remove foreign substances on the glass of the vehicle. The grooves 25 are provided on both sides of the body portion integrally extending from the wiper lip 24. The grooves 25 are formed concave in the width direction Y of the wiper strip 22. The grooves 25 extend in parallel to each other in the longitudinal direction X of the wiper lip 24.

The support member 27 is provided to provide rigidity to the wiper strip 22 and to impart spring elasticity so that the wiper strip 22 can be in good contact with the glass of the vehicle. The support member 27 is made of a metal material having a spring elasticity. The support member 27 is generally strip-shaped. The support member 27 is provided with a pair in this embodiment. The support members 27 are disposed one at each side with the wiper strip 22 therebetween. Each of the supporting members 27 is partially accommodated in each of the grooves 25. The other part of the support member 27 is exposed from each of the grooves 25. The support members 27 are long in the longitudinal direction X of the wiper strip 22. Each support member 27 has a plurality of coupling holes 28. In the present embodiment, two coupling holes 28 are provided. At least one of the coupling holes 28 is preferably a long elongated hole in the longitudinal direction X of the support member 27. In the present embodiment, the two coupling holes 28 are both formed as long holes in the longitudinal direction of the support member 27. The coupling holes 28 are spaced apart from each other in the longitudinal direction X of the support member 27.

The connecting device 30 is fixed to the central portion of the strip assembly 20. The connecting device 30 is provided to enable the strip assembly 20 to be detachably connected to the wiper arm 100. The wiper arm 100 may be detachably coupled to the connection device 30. The connection device 30 is provided with a protrusion 32 and a locking jaw 45. A plurality of protrusions 32 are provided, and four protrusions 32 are provided in this embodiment. The protrusions 32 are provided to allow the support members 27 to be coupled at a constant interval. The protrusions 32 are inserted into the coupling holes 28. As shown in FIG. 12, each of the protrusions 32 is inserted into the coupling hole 28, and at least a portion of the protrusions 32 is the support member 27 of the inner circumferential surface of the coupling hole 28. It is contacted and supported by the both sides of the inner peripheral surface of the width direction (Y) side. The reason for this is to allow the connecting device 30 to prevent relative movement of the support member 27 in the width direction Y.

Each of the protrusions 32 is in contact with and supported by a part of the inner circumferential surface of the longitudinal direction (X) side of the support member 27 among the inner circumferential surfaces of the coupling hole 28 to which the protrusions 32 are coupled. The relative movement of the support member 27 in the longitudinal direction X is prevented.

Therefore, the connection device 30 is effectively limited in the width direction (Y) and the longitudinal direction (X) of the support member 27 with respect to the support member 27.

The protrusions 32 are caulked as shown in FIG. 8 so that the protrusions 32 are prevented from being separated from the coupling holes 28 while being inserted into the coupling holes 28. Since the caulking method employs a known caulking method, a detailed description of the caulking process will be omitted.

In addition, the connection device 30 is relatively fixed to the support members 27 by a plurality of clip members 40 having elasticity. The clip member 40 is provided with a pair. The clip members 40 are disposed one at each side with the wiper strip 22 therebetween. Each of the clip members 40 is installed to apply pressure in the direction in which the connecting device 30 and the supporting members 27 are coupled to each other. The clip member 40 is assembled to the connecting device 30 or detachable from the connecting device 30 in a state that is elastically deformed by an external force. The clip member 40 is configured to relatively fix the connecting device 30 and the support member 27 by elastic restoring force. That is, when assembling the clip member 40, the clip member 40 is elastically deformed using an appropriate tool, and then the clip member (in the state in which the strip assembly 20 and the connecting device 30 are coupled to each other). When the external force is removed after the assembly 40, the pressure is applied to the coupling device 30 and the strip assembly 20 by the elastic restoring force of the clip member 40. A locking jaw 45 is provided at the clip member 40. The locking jaw 45 is coupled to the locking portion 34 provided in the connecting device 30 to prevent the clip member 40 from being separated from the connecting device 30. As such, the clip member 40 serves to fix the connection device 30 and the strip assembly 20 more firmly. In this embodiment, the clip member 40 is used as an auxiliary means for coupling the connecting device 30 and the strip assembly 20, but the protrusion 32 and the coupling hole 28 are not provided. If so, it may be used as the primary coupling means rather than as an auxiliary means.

The operation of the present invention will be described in detail along the assembly process of the blade assembly for automobile glass cleaning including the above components.

First, it is assumed that the wiper strip 22 is prepared. The support members 27 are respectively inserted into the groove portions of the wiper strip 22 so that some of the support members 27 are accommodated in the groove portions 25. In this state, the protrusions 32 provided in the connection device 30 are disposed to correspond to the coupling holes 28 provided in the support members 27. The protrusions 32 are inserted into the coupling holes 28. Then, a suitable device such as a jig is used to permanently deform the portion of the protrusion 32 penetrating the coupling hole 28. That is, caulking is performed. Then, the protrusions 32 are not separated from the coupling holes 28. In this process, at least a part of the protrusions 32 is supported on the inner circumferential surfaces of the coupling holes 28 in the width direction Y and the length direction X of the support member 27. Therefore, the connecting device 30 has an effect of preventing the support member 27 from flowing in the width direction Y and the length direction X of the support member 27. In addition, the coupling of the engaging holes 28 and the protrusions 32 results in the mounting position of the connecting device 30 is automatically mounted at a predetermined position. Therefore, the auxiliary work for setting the position of the connection device 30 is not necessary. That is, there is an effect that the assembly of the connecting device 30 is remarkably improved. As a result, since the assembly position is determined by the combination of the protrusions 32 and the coupling holes 28, the assembly quality is improved.

In order to prevent the flow of the connecting device 30 when the protrusions 32 and the coupling hole 28 are coupled, in this embodiment, as shown in FIG. 11, the shape of the protrusions 32 and the coupling hole are shown in FIG. 11. The shapes of 28 were configured to correspond to each other. However, FIGS. 13 to 15 illustrate a case in which the shapes of the protrusions 32 and the shapes of the coupling holes 28 do not coincide with each other. In this case, at least a part of each of the protrusions 32 is in contact with a part of the inner peripheral surface of the longitudinal direction X and the width direction Y of the support member 27 among the inner peripheral surfaces of the coupling holes 28. The connecting device 30 may be configured to be relatively fixed to the support member 27.

In addition, the pair of clip members 40 are assembled to more firmly couple the connecting device 30 and the strip assembly 20 to each other. Each clip member 40 may be assembled to surround the connecting device 30 and the strip assembly 20 by elastically deforming using an appropriate tool. The clip member 40 is coupled to the connecting device 30 and the support member 27 by an elastic restoring force when the external force is removed in a state in which the connecting device 30 and the strip assembly 20 are assembled. Pressure is applied in the direction. In addition, the locking jaw 45 provided in the clip member 40 is caught by the locking portion 34 provided in the connection device 30, so that the clip member 40 and the connection device 30 are more firmly connected to each other. To be combined.

In an embodiment of the present invention, the support member is provided with a pair to be arranged on each side, one by one between the wiper strips, the coupling holes provided in each of the support members are provided with two spaced apart in the longitudinal direction of the support member As described above, even when two or more of the coupling holes are provided, the object of the present invention can be achieved.

In an embodiment of the present invention, each of the protrusions is inserted into the coupling hole so that the connecting device prevents relative movement in the width direction of the support member, and at least some of the protrusions are supported by the inner peripheral surface of the coupling hole. Although described as being in contact with both sides of the inner circumferential surface in the width direction side of the member, the object of the present invention can be achieved if the protrusions can be firmly supported in the coupling hole using, for example, an additional member.

In the embodiment of the present invention, at least one of the coupling holes provided in each of the support members is described as long holes in the longitudinal direction of the support member, even if the coupling holes are not long holes to achieve the object of the present invention Can be.

In an embodiment of the present invention, each of the protrusions is supported by contact with a portion of the inner peripheral surface of the longitudinal direction of the support member of the inner peripheral surface of the coupling hole to which the protrusion is coupled, so that the connection device has a relative movement in the longitudinal direction of the support member. Although described as being prevented, it is possible to achieve the object of the present invention if, for example, the protrusions can be firmly supported in the coupling hole by using an additional member.

In the embodiment of the present invention, the protrusions are described as caulking to prevent the departure from the coupling hole in the state inserted into the coupling hole, but if the protrusion is prevented from the coupling hole is the caulking processing is Even if it is not done, the objective of this invention can be achieved.

In the embodiment of the present invention, the connection device is described as being relatively fixed to the support members by a plurality of clip members having elasticity, even if the clip member is not provided can achieve the object of the present invention.

In the embodiment of the present invention, the clip member has been described as being provided with a pair so that the wiper strips are arranged one by one on both sides, the two or more clip members can achieve the object of the present invention.

In the embodiment of the present invention, the clip member is assembled to the connecting device in a state that is elastically deformed by an external force or detachable from the connecting device, and described as relatively fixing the connecting member and the support member by the elastic restoring force. However, even if the clip member is not fixed by the elastic restoring force, for example by a separate fixing device can achieve the object of the present invention.

In an embodiment of the present invention, the clip member is provided with a locking step, and the connection device is provided with a locking part corresponding to the locking part so that the clip member is not separated from the connection device by mutual coupling of the locking step and the locking part. Although not described, the object of the present invention can be achieved even when the locking step and the locking part are not provided.

The present invention has been described above with reference to preferred embodiments, but the present invention is not limited to the examples, and various forms of embodiments may be embodied without departing from the technical spirit of the present invention.

As described above, the blade assembly for automobile glass washing according to the present invention is assembled by the coupling unit and the coupling assembly provided in the support member and the coupling hole provided in the support member, so that the assembly is improved and the quality after assembly is improved. This effect is remarkably improved.

In addition, the use of the clip member as in the embodiment of the present invention has the effect that can be more firmly coupled to the connecting device and the strip assembly.

Claims (14)

A strip assembly disposed to face the glass of the vehicle to remove debris from the glass surface; And A blade assembly for cleaning a glass of a vehicle comprising: a connecting device fixed to a center portion of the strip assembly and detachably connected to a wiper arm, The strip assembly, A wiper strip having a wiper lip disposed in sliding contact with the glass of the vehicle and a plurality of grooves integrally extending from the wiper lip and extending side by side in the longitudinal direction of the wiper lip on both sides; And And a plurality of support members, each of which is accommodated in each of the groove parts, the other part of which is installed to be exposed to the outside of the groove part, is disposed in the longitudinal direction of the wiper strip, and has a spring elasticity. Each support member has a plurality of coupling holes, The connecting device has a plurality of protrusions inserted into the coupling holes so as to couple the support members at a constant interval relative to the support member, characterized in that the vehicle glass washing blade assembly. The method of claim 1, The support member is provided with a pair to be arranged one on each side with the wiper strip in between, The coupling holes provided in each of the support members are separated in the longitudinal direction of the support member, the blade assembly for automobile glass cleaning, characterized in that provided with two. The method of claim 1, Each of the protrusions is inserted into the coupling hole such that the connecting device is prevented from moving relative to the width direction of the support member. Blade assembly for cleaning a glass of automobile, characterized in that the support is in contact with. The method of claim 1, At least one of the coupling holes provided in each of the support members is a blade assembly for cleaning a vehicle glass, characterized in that the long hole in the longitudinal direction of the support member. The method of claim 1,  Each of the protrusions is supported by contact with a portion of the inner peripheral surface of the longitudinal direction of the support member of the inner peripheral surface of the coupling hole coupled to the projection is characterized in that the connection device is prevented relative movement in the longitudinal direction of the support member Blade assembly for car glass cleaning. The method of claim 1, And the protrusions are caulked to prevent deviation from the coupling holes while inserted into the coupling holes. The method of claim 1, The connecting device is a blade assembly for automobile glass cleaning, characterized in that the relatively fixed to the support members by a plurality of clip members having elasticity. The method of claim 7, wherein The clip member is a blade assembly for automobile glass cleaning, characterized in that a pair is provided so as to be disposed on each side with the wiper strip between. The method of claim 7, wherein The clip member may be assembled to or detached from the connecting device in a state in which the elastic member is elastically deformed by an external force, and the blade for cleaning the vehicle glass may be relatively fixed to the connecting member and the support member by an elastic restoring force. Assembly. The method of claim 7, wherein The clip member is provided with a locking jaw, The connecting device is provided with a locking portion corresponding to the locking portion is the blade assembly for automobile glass cleaning, characterized in that the clip member is not separated from the connecting device by the coupling of the locking step and the locking portion. A strip assembly disposed to face the glass of the vehicle to remove debris from the glass surface; And A blade assembly for cleaning a glass of a vehicle comprising: a connecting device fixed to a center portion of the strip assembly and detachably connected to a wiper arm, The strip assembly, A wiper strip having a wiper lip disposed in sliding contact with the glass of the vehicle and a plurality of grooves integrally extending from the wiper lip and extending side by side in the longitudinal direction of the wiper lip on both sides; And And a plurality of support members, each of which is accommodated in each of the groove parts, the other part of which is installed to be exposed to the outside of the groove part, is disposed in the longitudinal direction of the wiper strip, and has a spring elasticity. The connecting device is a blade assembly for automobile glass cleaning, characterized in that the relatively fixed to the support members by a plurality of clip members having elasticity. The method of claim 11, The clip member is a blade assembly for automobile glass cleaning, characterized in that a pair is provided so as to be disposed on each side with the wiper strip between. The method of claim 11, The clip member may be assembled to or detached from the connecting device in a state in which the elastic member is elastically deformed by an external force, and the blade for cleaning the vehicle glass may be relatively fixed to the connecting member and the support member by an elastic restoring force. Assembly. The method of claim 11, The clip member is provided with a locking jaw, The connecting device is provided with a locking portion corresponding to the locking portion is the blade assembly for automobile glass cleaning, characterized in that the clip member is not separated from the connecting device by the coupling of the locking step and the locking portion.

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