KR100965425B1 - A flat wiper blade for vehicle - Google Patents

Abstract

The present invention relates to a vehicle wiper, comprising: a flat frame having an inherent curvature; A blade member having a fastening protrusion formed thereon; Frame receiving slot is formed in the form of only the center portion in the upper portion is opened upward, the frame receiving slot into which the flat frame is inserted, and the protrusion receiving slot is formed in the form of the form partially opened in the lower portion only the lower portion in the lower portion is inserted into the projection for fastening the blade member Auxiliary conjugate having a; It is formed along the longitudinal direction in the form of the sub-combinator receiving slot formed in the form of only the central portion in the lower portion to the lower side is inserted into the upper portion of the sub-combinator receiving slot, A spoiler member having a clearance; And a pair of end caps for closing both ends; and by providing a flat wiper blade for a vehicle, partial replacement of the blade member or the spoiler member enables cost reduction and free production. At the same time, the assembly is easier and the productivity is improved, and the coupling state is improved by the complementary shape restraint, and the effect of significantly reducing the risk of breakage of the parts that may occur during the replacement operation can be obtained.

Flatbed Frame, Hanging Part, Side Fastening Slot, Hanging Projection

Description

Flat wiper blades for cars {A FLAT WIPER BLADE FOR VEHICLE}

1 is an exploded perspective view showing an example of a flat wiper blade for a vehicle according to the prior art,

Figure 2 is an exploded perspective view showing another example of a flat wiper blade for a vehicle according to the prior art,

3 is a cross-sectional view of the vehicle flat wiper blade of FIG.

4 is a partially exploded perspective view showing the end cap coupling structure of the vehicle flat wiper blade of FIG.

Figure 5 is a perspective view of a flat wiper blade for a vehicle according to an embodiment of the present invention,

FIG. 6 is an exploded perspective view of the vehicle flat wiper blade of FIG. 5;

7 is a cross-sectional view illustrating an exploded state of the vehicle flat wiper blade of FIG. 5;

8 is a cross-sectional view showing an assembled state of the vehicle flat wiper blade of FIG.

FIG. 9 is a partially exploded perspective view illustrating an end cap coupling structure of the vehicle flat wiper blade of FIG. 5;

10 is a cross-sectional view taken along the line A-A of FIG.

* Description of the symbols for the main parts of the drawings *

110: flat plate frame 115: engaging portion

120: blade member 125: fastening protrusion

130: spoiler member 133: free space

135: auxiliary assembly receiving slot 139: horizontal extension

140: auxiliary assembly 143: frame receiving slot

145: protrusion receiving slot 147: side extension

149: side fastening slot 150: end cap

151: rear wall 153: horizontal protrusion

155: elastic fastening portion 157: locking projection

159: tool insertion hole 160: bracket

The present invention relates to a vehicle wiper, and more particularly, to configure the frame, the blade member and the spoiler member for the shape-keeping use integrally via the auxiliary coupling to facilitate the assembly during manufacturing. It also relates to a flat wiper blade for a vehicle that also facilitates disassembly, thereby enabling partial replacement of the blade member or spoiler member.

In general, a wiper device is used to remove rain water or other foreign matter falling on the windshield of the vehicle in rainy weather to maintain a good view while driving. The wiper device is largely comprised of a drive motor that provides a driving force, a wiper arm mechanically connected to the drive motor and reciprocating within a predetermined angle range, and a wiper blade detachably coupled to the tip of the wiper arm. Is done. Such a wiper device mechanically transmits the driving force of the drive motor to the wiper arm, if necessary, to allow the wiper blade to reciprocate while keeping the state in close contact with the windshield of the vehicle. Make it possible to remove debris.

On the other hand, the general wiper blade should periodically replace the blade member made of a material such as rubber that wears directly by friction with the windshield of the vehicle. However, the wiper blade according to the prior art, as it is generally provided in the form of the assembly can not be replaced separately only the blade member, thereby not only burden the consumer excessively, there was a problem of wasting resources. Furthermore, due to the complicated structure of the wiper blade itself, there is a problem that productivity is reduced and manufacturing costs are inevitably significant.

1 is an exploded perspective view showing an example of a flat wiper blade for a vehicle according to the prior art.

As designed to solve the problems of the prior art as described above, "vehicle flat wiper blade" of Utility Model Registration No. 2006-0008013 devised by the inventor of the present invention has been provided. Specifically, the wiper blade of the utility model registration application, as shown in Fig. 1, the blade member (2) is fitted to the frame 1 of the leaf spring form with a long hole, and then the frame (1) spoiler member (3) ) Is coupled to the groove in the groove. Such a wiper blade made it possible to partially replace only the blade member, but the replacement method was not easy, and it was a little difficult for a general consumer without expert knowledge or skills to perform the replacement work. As a result, the frame can be easily twisted, leading to a problem that the force transmitted from the wiper arm is not evenly transmitted over the entire length of the blade. In addition, the wiper blade is not easy to partially replace the spoiler member, and until the wiper blade is replaced with a cylindrical body, the spoiler member of a single color cannot be used continuously, and thus, the individuality of the wiper blade is limited. to be.

2 is an exploded perspective view showing another example of a vehicle flat wiper blade according to the prior art, Figure 3 is a cross-sectional view of the vehicle flat wiper blade of Figure 2, Figure 4 is an end cap coupling of the vehicle flat wiper blade of Figure 2 Partial exploded perspective view showing the structure.

As designed to solve the problems of the prior application prior art as described above, the "Flat Vehicle Wiper Blade" of Utility Model Registration No. 2006-0031174 also devised by the inventor of the present invention has been provided. Specifically, the wiper blade of the utility model registration application, as shown in Figure 2, by introducing the auxiliary coupling 10, the frame 30 and the shape of the blade member for use in shape maintenance via the auxiliary coupling 10 The 40 and the spoiler member 20 are configured to be assembled in one piece, which facilitates assembly during manufacture and facilitates disassembly. Therefore, the blade member 40 and the spoiler member ( Partial replacement of 20) was made possible. Furthermore, as such an easy replacement is possible, it is possible to implement the wiper blade to suit the user's taste by replacing the spoiler member 20 of various shapes and colors as desired by the user.

However, as shown in FIGS. 2 and 3, the wiper blade has a through-hole 12 formed in a shape that penetrates over the entire length of the auxiliary assembly 10 in order to insert the frame 30. As it is formed in a closed passage shape opened only at both ends of 10), the operation of inserting the frame 30 into the through hole 12 requires a large force due to friction and surface pressure, which makes the assembly work difficult. Found. And, as shown in Figure 3, the spoiler member 20, depending on the one-sided structure of the fastening groove portion 22 provided only in the spoiler member 20 to surround both sides of the auxiliary coupling unit 10 from the outside, Since the splice member 20 is easily or partially detached from the auxiliary coupling body 10 when exposed to strong external force, it is not desirable to maintain a stable coupling state between the auxiliary coupling body and the auxiliary coupling body 10. A problem was found. In addition, as shown in Figure 4, the coupling of the end cap 60 is provided to close both ends of the wiper blade, the coupling protrusion 62 formed in the end cap 60 and the auxiliary coupling (10) It is maintained by the shape restriction by the engagement of the fastening hole 16 formed on the end side, the blade member 40 and the spoiler member 20 as the auxiliary coupling 10 is made of a material such as plastic, not metal. In the process of disassembling and recombining the end cap 60 for the replacement of), there is a problem that the fastening protrusion 62 or the peripheral portion of the fastening hole 16 can be easily broken.

As invented to solve the problems of the prior art as described above,

The present invention is configured so that the flat frame, the blade member and the spoiler member for the shape-maintaining purpose through the auxiliary coupling body can be assembled integrally, while maintaining the coupling state between the auxiliary coupling body and the flat frame easily The spoiler member and the sub-assembly can be easily assembled, while maintaining the state of engagement stably by complementary shape constraints, and the end cap is directly coupled to the flat frame frame by the easy-detachable coupling structure. It is an object of the present invention to provide a flat wiper blade for a vehicle so that partial breakage does not occur.

The present invention for achieving the above object,

A flat frame having an inherent curvature;

A blade member which is formed at the top in the longitudinal direction for fastening and is in direct contact with the glass of the vehicle;

It is formed along the longitudinal direction in a form in which both ends are closed at the upper part and only the center part is open upward, and has a frame receiving slot into which the flat frame is inserted, and both sides are closed at the lower part and only the center part is opened downward. An auxiliary assembly formed along a longitudinal direction of the furnace and having a protrusion accommodating slot into which the fastening protrusion of the blade member is inserted;

On both sides, the two ends are closed and the central part is partially opened, and is formed along the longitudinal direction, and has an auxiliary assembly receiving slot into which an upper portion of the auxiliary assembly is partially inserted, and upwards from the upper center of the auxiliary assembly receiving slot. Spoiler member having a free space formed in the longitudinal direction in the form indented into; And

It provides a flat wiper blade for a vehicle comprising a; end caps for closing both ends.

The auxiliary assembly further includes side extension portions extending horizontally in the longitudinal direction from the lower ends of both sides of the protrusion accommodating slots, and a pair of side fastening slots opened in the lateral directions on both sides of the protrusion accommodating slots, respectively. Equipped with

The pair of left and right horizontal extensions extending horizontally from the bottom of both sides of the spoiler member toward the center in order to form the auxiliary assembly receiving slot when fastening is characterized in that it is inserted into the side fastening slot.

In addition, the flat plate frame is provided with a pair of engaging portions projecting upward in the form of gradually rising toward the central portion in the longitudinal direction, respectively in the width direction central portion of both ends,

The end caps each include a horizontal protrusion extending horizontally toward the front from the inner rear wall and a locking protrusion protruding downward from the end of the horizontal protrusion, and having an elastic fastening portion engaged with the locking portion when engaged. It is done.

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

5 is a perspective view illustrating a vehicle flat wiper blade according to an exemplary embodiment of the present invention, FIG. 6 is an exploded perspective view illustrating the vehicle flat wiper blade of FIG. 5, and FIG. 7 is an exploded perspective view of the vehicle flat wiper blade of FIG. 5. 8 is a cross-sectional view illustrating an exploded state, and FIG. 8 is a cross-sectional view illustrating an assembled state of the vehicle flat wiper blade of FIG. 5. 9 is a partially exploded perspective view illustrating an end cap coupling structure of the vehicle flat wiper blade of FIG. 5, and FIG. 10 is a cross-sectional view taken along line A-A of FIG. 5.

As shown in FIGS. 5 and 6, the flat wiper blade for a vehicle according to the preferred embodiment of the present invention includes a flat frame 110 having an inherent curvature and a blade member 120 that is in close contact with the glass of the vehicle. ), An upper spoiler member 130, and an auxiliary coupling body 140 to serve as a medium for coupling them integrally, and an end cap 150 closing both ends. Then, the bracket 160 for coupling with the wiper arm (not shown) is coupled to the middle portion of the auxiliary assembly 140, so that the spoiler member 130 is coupled to each side of the bracket 160 one by one do. Here, the bracket 160 can be coupled to be compatible with all types of wiper arms mounted on the vehicle.

As shown in FIG. 7, the flat plate frame 110 is coupled to the frame receiving slot 143 provided on the upper portion of the auxiliary assembly 140 as a whole, and the blade member 120 is the auxiliary assembly 140. It is coupled in a form that is partially inserted into the protrusion receiving slot 145 provided in the lower portion, the spoiler member 130 is coupled so as to surround the upper portion of the auxiliary assembly 140 primarily coupled to the flat frame 110. . The end caps 150 are coupled to both ends of the auxiliary assembly 140 in the coupled state to finish.

The flat plate frame 110 may be made of a metal such as carbon steel so as to have an excellent restoring force for maintaining the shape, and is formed to have an inherent curvature in consideration of the curvature of the window of the vehicle. In addition, the auxiliary coupling body 140 may be made of a plastic material, and has a certain degree of flexibility but preferably has a material characteristic enough to maintain a cross-sectional shape, and thus, a material having elasticity such as rubber It may not be appropriate. In addition, the spoiler member 130 may be made of natural rubber, synthetic rubber, soft plastic, or the like, and it may be desirable to have elasticity and free deformation when bonding.

On the other hand, the blade member 120, like the known blade member, the fastening protrusion 125 is formed along the longitudinal direction in the upper portion, the lower portion is in direct contact with the windshield of the vehicle serves to remove rain water or foreign matter. Will be performed.

Specifically, as shown in FIG. 7 and FIG. 8, the auxiliary assembly 140 has a frame receiving slot 143 for accommodating the flat plate frame 110 on the upper side, and a lower portion of the blade member 120. It is provided with a protrusion receiving slot 145 into which the fastening protrusion 125 is inserted. Referring to the cross-sectional view as shown in Figure 7, the frame receiving slot 143 is formed in a shape corresponding to the cross-sectional shape of the flat plate frame 110, the both ends are closed and only the center portion is partially open upwards Furnace is formed along the longitudinal direction. Therefore, when assembled, the flat plate frame 110 is positioned as a whole inserted into the frame receiving slot 143. And, the protrusion receiving slot 145 is formed in a shape corresponding to the cross-sectional shape of the fastening protrusion 125 for the fastening of the blade member 120, so that both ends are closed and the central portion is partially opened downward in the longitudinal direction. Formed accordingly.

The spoiler member 130 has a subassembly receiving slot 135 into which the upper portion of the subassembly 140 is partially inserted. The auxiliary assembly receiving slot 135 is also formed along the longitudinal direction in a form in which both end portions are closed and only the central portion is partially open downward, so that the lower portion of the blade member 120 is exposed to the outside. And, there is provided a free space portion 133 formed along the longitudinal direction in a form partially indented upward from the upper surface central portion of the auxiliary assembly receiving slot 135. The free space portion 133 does not reduce the shape restraint force between the auxiliary assembly 140 and the spoiler member 130, and frees deformation during assembly, and also provides a material used to manufacture the spoiler member 130. It can be significantly reduced in quantity. Therefore, it will be possible to provide a desirable effect in terms of cost reduction.

On the other hand, as shown in Figure 7, the auxiliary assembly 140 further includes a side extension portion 147 extending in the longitudinal direction horizontally from the lower end of both sides of the protrusion receiving slot 145. Accordingly, a pair of side fastening slots 149 are opened on both sides of the protrusion receiving slot 145 in the lateral direction, respectively. As shown in FIG. 8, the side fastening slots 149 are formed at both sides of the spoiler member 130 to form the auxiliary assembly receiving slot 135 when the spoiler member 130 and the auxiliary assembly 140 are fastened. In order to insert the left and right pairs of horizontal extensions 139 extending horizontally from the bottom to the center, the coupling between the auxiliary assembly 140 and the spoiler member 130 by the side fastening slot 149 is only a spoiler. Rather than relying on unilateral geometrical constraints by the member 130, it is possible to maintain a more stable state of engagement between each other, by virtue of complementary geometrical constraints.

On the other hand, the flat plate frame 110 is directed toward the longitudinal center portion, respectively, in the widthwise center portions at both ends thereof, as shown in FIGS. 9 and 10, for a stable and easily disassembleable coupling with the end cap 150. It has a pair of engaging portions 115 projecting upward in a progressively rising form. Correspondingly, the end cap 150 is composed of a horizontal protrusion 153 extending horizontally forward from the rear wall 151 therein and a locking protrusion 157 projecting downward from an end of the horizontal protrusion. And, when the coupling is provided with an elastic fastening portion 155 is engaged with the locking portion 115 of the flat plate frame 110. In addition, the end cap 150 is formed to penetrate the rear wall 151 at a position directly below the horizontal protrusion 153 so that a tool for releasing the engagement between the engaging portion 115 and the elastic fastening portion 155 may enter. It is provided with a tool insertion hole 159 to be. Therefore, as the end cap 150 enters toward the center at both ends of the auxiliary assembly 140 assembled with the flat frame 110 and the spoiler member 130, the locking protrusion 157 of the elastic fastening portion 155 The end cap 150 is placed in a stable coupling state with the flat plate frame 110, the end cap 150 and the flat plate frame 110 of the flat frame 110, The engagement state can be easily released by inserting a suitable tool into the tool insertion hole 159 of the end cap 150 to elastically deform the elastic fastening portion 155 upwards, so that the blade member 120 or the spoiler member ( Proper response can be made when partial replacement of 130 is required. In addition, since the end cap 150 is not coupled by direct engagement with the auxiliary assembly 140 made of plastic, the risk of breakage occurring during the disassembly of the end cap 150 is greatly reduced. You can do it.

The assembly process of the flat wiper blade for a vehicle according to the present invention as described above is as follows. First, the flat plate frame 110 is inserted into the frame receiving slot 143 of the auxiliary assembly 140 in the longitudinal direction through the auxiliary assembly 140, and the blade member is accommodated in the protrusion of the auxiliary assembly 140. The slot 145 is also fitted in a sliding manner along the longitudinal direction. Subsequently, the auxiliary assembly 140 coupled to the flat frame 110 is slidably inserted into the auxiliary assembly receiving slot 135 of the spoiler member 130 divided into two parts, and then the end caps are coupled to both ends to finish. Assembled in the same order.

By providing a flat wiper blade for a vehicle according to the present invention as described above, partial replacement of the blade member or spoiler member can be easily made with a simple operation, allowing cost reduction compared to the overall replacement and freeing according to the user's taste. It is possible to produce, but it is easy to assemble and the productivity is improved. The complementary shape restraint improves the stability of the joining state, and it greatly reduces the risk of breakage of parts that may occur during the partial replacement work. To achieve a reducing effect.

While the invention has been shown and described in connection with specific embodiments, it is common practice in the art that various design changes and changes are possible without departing from the spirit and scope of the invention as set forth in the appended claims. Anyone who has a can easily know.

Claims (3)

A flat frame having an inherent curvature; A blade member which is formed at the top in the longitudinal direction for fastening and is in direct contact with the glass of the vehicle; It is formed along the longitudinal direction in a form in which both ends are closed at the upper part and only the center part is open upward, and has a frame receiving slot into which the flat frame is inserted, and both sides are closed at the lower part and only the center part is opened downward. An auxiliary assembly formed along a longitudinal direction of the furnace and having a protrusion accommodating slot into which the fastening protrusion of the blade member is inserted; On both sides, the two ends are closed and the central part is partially opened, and is formed along the longitudinal direction, and has an auxiliary assembly receiving slot into which an upper portion of the auxiliary assembly is partially inserted, and upwards from the upper center of the auxiliary assembly receiving slot. Spoiler member having a free space formed in the longitudinal direction in the form indented into; And In the flat wiper blade for a vehicle comprising a pair of end caps closing both ends, The auxiliary assembly further includes a side extension part extending in a longitudinal direction horizontally from the bottom of both outer sides of the protrusion receiving slot, and has a pair of side fastening slots that are laterally opened on both sides of the protrusion receiving slot. , And a pair of left and right horizontal extensions extending horizontally from the bottom of both sides of the spoiler member toward the center to form the auxiliary assembly receiving slot when the flat coupling wiper blade is inserted into the side fastening slot. delete The method of claim 1, The flat plate frame has a pair of engaging portions projecting upward in the form of progressively rising toward the longitudinal center portion, respectively, in the central portion in the width direction of both ends, The end caps each include a horizontal protrusion extending horizontally toward the front from the inner rear wall and a locking protrusion protruding downward from the end of the horizontal protrusion, and having an elastic fastening portion engaged with the locking portion when engaged. Flat wiper blades.

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