KR101681224B1

KR101681224B1 - Multiple coupling structured wiper for automobile

Info

Publication number: KR101681224B1
Application number: KR1020140046383A
Authority: KR
Inventors: 서덕희
Original assignee: 서덕희
Priority date: 2014-04-18
Filing date: 2014-04-18
Publication date: 2016-12-01
Also published as: WO2015160189A1; KR20150120623A

Abstract

An automotive wiper with multiple engagement structure is provided. The wiper includes a wiper blade, a hinge bracket fixed to the wiper blade and having a hinge portion, and a connection bracket coupled to the hinge portion and seesawing and connected to a wiper arm of the vehicle. The connection bracket includes a hinge portion The first and second side wall portions being coupled to each other in the longitudinal direction of the wiper blade and the first fixing protrusions being elastically coupled to the outside of the first side wall portion and the second side wall portion and protruding outwardly, A second engaging portion protruding inwardly from the first side wall portion and the second side wall portion and spaced apart from the hinge bracket, a third engaging portion formed between the first and second side wall portions and spaced apart from the hinge bracket, And a coupling portion.

Description

[0001] The present invention relates to a multiple coupling structured wiper for automobile,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a motor vehicle wiper, and more particularly, to a motor vehicle wiper having a multiple-engagement structure in which different types of engagement structures are applied to a single wiper.

A wiper is a device that wipes a window. The wiper can be mounted on the front or rear of the vehicle and can be moved repeatedly in the mounted position to wipe off any foreign matter or rainwater on the front or rear glass. The wiper includes a wiper blade moving in close contact with the glass.

When the wiper is engaged with a movable arm formed on the vehicle body, the wiper blade is brought into close contact with the front or rear glass of the vehicle. Therefore, the driver can move the arm to change the position of the wiper blade and clean the glass surface cleanly. The wiper is configured to be capable of coupling or uncoupling with the arm so that it can be replaced as needed.

However, there is a problem that the coupling structure in which the arm and the wiper blade are engaged can be formed in different ways depending on the type of vehicle. In other words, vehicles manufactured by different manufacturers can each employ a different type of wiper coupling structure, and for this reason, even in a really necessary situation (for example, when a wiper blade is consumed, The driver may not be able to replace the wiper. Further, there has been an inconvenience that the coupling structure must be checked every time the driver exchanges the wiper.

Korean Utility Model Publication No. 20-1998-035271, (September 15, 1998)

SUMMARY OF THE INVENTION It is an object of the present invention to provide an automotive wiper having a multiple coupling structure in which different types of coupling structures are applied to a single wiper.

The technical problem of the present invention is not limited to the above-mentioned problems, and other technical problems which are not mentioned can be clearly understood by those skilled in the art from the following description.

According to the present invention, a motor vehicle wiper having a multiple-engagement structure includes: a wiper blade; A hinge bracket fixed to the wiper blade and having a hinge portion; And a connection bracket coupled to the hinge and seesawing and connected to a wiper arm of the vehicle, wherein the connection bracket is coupled to the hinge, A side wall portion and a second side wall portion; A first engaging portion elastically coupled to an outer side of the first side wall portion and the second side wall portion and having a first fixing protrusion protruded outward; A second engaging portion protruding inwardly from the first side wall portion and the second side wall portion and spaced apart from the hinge bracket; And a third coupling portion connecting the first sidewall portion and the second sidewall portion and spaced apart from the hinge bracket.

The first engaging portion may further include a first pushing protrusion protruded outward from the first fixing protrusion at one side thereof.

The first coupling part is coupled to a first wiper arm having an inverted 'U' shape opened to the lower side and having an inverted 'U' shape with an inverted U shape and an inner hook formed therein, A second fixing protrusion which is elastically coupled to the first side wall portion and the second side wall portion so as to be adjacent to each other and is protruded to be hooked on the hook and a second hook protruding outwardly from the second fixing protrusion on one side, 1 auxiliary coupling unit.

The wiper may further include a curved surface engaging portion that is recessed forward so that the first side wall portion and the second side wall portion are in contact with the first wiper arm, respectively.

The second coupling portion includes a first protrusion formed of an upper portion and two side portions and protruding from the upper portion in a forward direction so as to form an inverted U shape having an inverted U shape, The first protrusion of the second wiper arm including the second protrusion protruding rearward from the side portion is engaged, the wiper is elastically coupled to the first side wall portion and the second side wall portion, respectively, and the second protrusion And a second auxiliary coupling portion that includes a third fixing protrusion protruded to be engaged with the first fixing protrusion and a third pressing protrusion that is further protruded outward than the third fixing protrusion on a side thereof and located at a lower portion of the third fixing protrusion.

A third wiper arm having a hook shape bent in a backward direction is coupled to the third coupling portion, and the third coupling portion can receive the hinge portion inside.

Wherein the wiper further comprises a cover portion hinged to the connection bracket and covering at least a portion of the connection bracket, wherein the first and second sidewall portions include a first through hole and a second through hole, The cover portion may include a fourth coupling portion including a coupling hole communicating with the first through hole on a side portion thereof.

And a fourth wiper arm coupled to the fourth coupling portion, the fourth wiper arm including a first pin projecting in a lateral direction and a second pin extending in parallel with the first pin and bent downward at an end thereof, The cover may further include an indentation groove for receiving a portion of the second fin and an insertion groove for inserting an end of the second fin.

According to the present invention, a completely different coupling structure can be realized in one wiper. Therefore, one wiper can be easily mounted on different wiper arms formed in different kinds of vehicles, and the driver does not need to check the wiper arm and the wiper in a troublesome manner. In addition, it is possible to easily prepare for an emergency situation in which the wiper is quickly replaced with a prepared wiper.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an automotive wiper of a multiple-coupling structure according to an embodiment of the present invention; FIG.
Fig. 2 is an exploded perspective view of the hinge bracket, the connection bracket, and the cover portion of the wiper of Fig. 1;
3 is an enlarged perspective view of the connection bracket of FIG. 2 in more detail.
4 is a side view of the connection bracket of FIG.
5 is a cross-sectional view taken along line A-A ', B-B', and C-C 'of the connection bracket of FIG.
FIG. 6 is a perspective view illustrating a state in which the connection bracket and the cover portion of FIG. 2 are coupled to each other.
7 is a side view of the connection bracket and the cover of Fig.
8A to 8C are views showing a process of coupling the wiper and the first wiper arm of FIG. 1;
FIGS. 9A to 9C are views showing a process of combining the wiper and the second wiper arm of FIG. 1;
FIGS. 10A to 10C are views showing a process of combining the wiper and the third wiper arm of FIG. 1;
FIGS. 11A to 11C are views showing a process of combining the wiper and the fourth wiper arm of FIG. 1;

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and methods for achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is only defined by the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, a vehicle wiper according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 11C.

FIG. 1 is a perspective view of an automotive wiper according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a hinge bracket, a connection bracket, and a cover portion of the wiper of FIG.

1 and 2, an automotive wiper 1 having a multiple-coupling structure according to an embodiment of the present invention includes a wiper blade 10, a hinge bracket 100 fixed to the wiper blade 10, (See FIGS. 8A to 11C, A, B, C, and D) of the automobile and hinge-coupled with the hinge 100 to cover at least a part of the connecting bracket 200 And a cover portion 300. The hinge bracket 100 is fixed to one side of the wiper blade 10 using the fixing part 120 and the cover part 300 can be rotated and opened outside the connection bracket 200. [

The connection bracket 200 and the cover unit 300 may include a first coupling unit 210, a second coupling unit 220, a third coupling unit 230, a fourth coupling unit 310, The auxiliary coupling portion 240 and the second auxiliary coupling portion 250 are selectively coupled to different wiper arms using different coupling structures. 2, the connection bracket 200 includes a first sidewall 201 and a second sidewall 202, a first sidewall 201 and a second sidewall 202, A first engaging portion 210 elastically coupled to the first side wall portion 201 and having a first fixing protrusion 211 formed thereon, a second engaging portion 220 protruding inward of the first side wall portion 201 and the second side wall portion 202, And a third engaging portion 230 connecting the first side wall portion 201 and the second side wall portion 202. The cover portion 300 includes a coupling hole 311, And a fourth coupling portion 310 composed of an insertion groove 313.

In this manner, one wiper can be easily coupled to the wiper arm of various different shapes by using the coupling structure in which the components are organically combined. Hereinafter, the configuration of the automotive wiper 1 having a multi-coupling structure having such characteristics will be described in more detail.

The wiper blade 10 is elongated to one side as shown in Fig. The wiper blade 10 is at least partially formed of a resilient material, and the resilient portion can be brought into close contact with the automobile glass surface. A hinge bracket 100 is fixed to a portion of the wiper blade 10 that is not in close contact with an automobile glass surface.

The hinge bracket 100 includes a fixing portion 120 and a hinge portion 110 as shown in FIG. The fixing portion 120 of the hinge bracket 100 may be formed in a plate shape and the hinge portion 110 may be formed on the fixing portion 120 in parallel with the fixing portion 120. The hinge part 110 is formed in a cylindrical bar shape and can be easily coupled to the fixing groove 203 of the connection bracket 200 and can be rotated in the fixing groove 203. Accordingly, the connection bracket 200 can be coupled to the hinge 110 to perform a seesaw motion.

However, the fixing portion 120 and the hinge portion 110 need not be limited to such a shape. The fixing portion 120 may be deformed into various shapes that can easily be combined with the wiper blade 10. [ In addition, the hinge unit 110 can be changed in the direction or position of the hinge unit 120 according to the shape of the fixing unit 120. It is also possible that the hinge bracket 100 is formed integrally with the wiper blade 10.

The connection bracket 200 is formed in a complicated shape in which one or more coupling portions (a first coupling portion, a second coupling portion, a third coupling portion, a first auxiliary coupling portion, and a second auxiliary coupling portion) are organically combined. The connection bracket 200 includes a first side wall portion 201 and a second side wall portion 202 formed parallel to each other in the longitudinal direction of the wiper blade 10. [ The first side wall portion 201 and the second side wall portion 202 may be a portion between one end of the hinge shaft 204 and the other end of the third fixing protrusion 251, . The first coupling portion 210, the first auxiliary coupling portion 240, and the second auxiliary coupling portion 250 protrude from the first sidewall portion 201 and the second sidewall portion 202, respectively.

A fixing groove 203 is formed at a central lower portion of the connection bracket 200. The hinge part 110 of the hinge bracket 100 is easily coupled to the connection bracket 200 through the fixing groove 203 and the connection bracket 200 can perform a seesaw movement about the hinge part 110 . The concrete structure of the connection bracket 200 will be described later in more detail.

The cover part 300 covers the entire connection bracket 200 and accommodates the connection bracket 200 therein. In the cover part 300, a coupling hole 311 is penetrated through the side part, and the surface of the cover part 300 is indented into the upper part to form the indentation groove 312. The indentation groove 312 may be extended to one side and the insertion groove 313 may be formed by penetrating the surface of the cover portion 300 at the extended end. The engaging hole 311, the indentation groove 312, and the insertion groove 313 constitute the fourth engaging portion 310 as described above.

The cover part 300 is hinged to the hinge shaft 204 of the connection bracket 200 by using the hinge groove 301 and is fixed to the engagement projection 243 of the connection bracket 200 using the engagement groove 302 It can be fixed by hanging. Accordingly, the cover portion 300 can be easily closed by rotating about the hinge shaft 204 and opening or rotating in the opposite direction. A protruding pattern or the like may be formed on one side of the cover part 300 to increase frictional force so that the cover part 300 can be easily gripped.

The fourth coupling portion 310 mentioned above is engaged with the wiper arm when the cover portion 300 is closed. The cover portion 300 will be described later in more detail.

FIG. 3 is a perspective view showing the connection bracket of FIG. 2 in an enlarged manner, FIG. 4 is a side view of the connection bracket of FIG. 2, Sectional view taken along line C-C 'in Fig.

Hereinafter, the connection bracket will be described in more detail with reference to FIGS. 3 to 5. FIG.

3 to 5, the first side wall portion 201 and the second side wall portion 202 are parallel to each other and extend in the longitudinal direction of the aforementioned wiper blade (see 10 in FIG. 1). The direction in which the first sidewall portion 201 and the second sidewall portion 202 extend may be a direction parallel to the X axis in Fig.

The first sidewall portion 201 and the second sidewall portion 202 include a first through-hole 201a and a second through-hole 202a. The first through hole 201a and the second through hole 202a are formed so that the first through hole 201a and the second through hole 202a extend in the lateral direction of the connection bracket 200 (See Fig. 4). In Fig.

The first coupling portions 210 are elastically coupled to the outer sides of the first side wall portion 201 and the second side wall portion 202, respectively. The first coupling part 210 includes a first fixing protrusion 211 protruding outward and a first pressing protrusion 212 protruding further outward than the first fixing protrusion 211. (The outer side of the first sidewall portion 201 is the direction in which the Y axis in Fig. 3 is oriented and the inner side is in the opposite direction, the outer side of the second sidewall portion 202 is the opposite direction to the Y axis in Fig. 3, Axis direction)

5A, a first fixing protrusion 211 protruding outwardly from the first side wall portion 201 and a second side wall portion 202, a first fixing protrusion 211 protruding outward from the first side wall portion 201 and the second side wall portion 202, The first engaging portion 210 includes a first engaging portion 210a. The first coupling part 210 is formed of a material having elasticity and is connected to the first side wall part 201 and the second side wall part 202 and can be elastically deformed or restored. In particular, when the first pressing projection 212 is pressed, the first coupling portion 210 can be easily deformed. The second coupling portion 220, the first auxiliary coupling portion 240, and the second auxiliary coupling portion 250 may be formed of a material having an elastic force in addition to the first coupling portion 210, 201 and the second side wall 202 are also made of elastic material and can be elastically deformed and restored.

The second engaging portion 220 protrudes inward from the first side wall portion 201 and the second side wall portion 202, respectively. 3) of the first side wall part 201 and the inner side of the second side wall part 202 (Y direction in Fig. 3) Axis direction) and is positioned between the first sidewall portion 201 and the second sidewall portion 202. The pair of second coupling portions 220 may be symmetrically formed, and a portion of the first sidewall portion 201 and a portion of the second sidewall portion 202 may be formed by bending.

The second coupling portion 220 is spaced from the hinge bracket 100 (see FIG. 2). Therefore, the seesaw motion between the hinge bracket 100 and the connection bracket 200 may not be interrupted even in a state where the wiper arm is coupled to the second engagement portion 220. For example, when the hinge bracket 100 is coupled to the lower portion of the connection bracket 200, the second connection portion 220 can be positioned above the connection bracket 200 (see FIG. 2).

The third coupling portion 230 connects between the first sidewall portion 201 and the second sidewall portion 202. The third coupling part 230 may extend in a direction in which the first side wall part 201 and the second side wall part 202 extend and the end part of the third coupling part 230 may be formed in a gently curved shape . 3 and 4, the fixing groove 203 may be formed at a lower portion of the third engaging portion 230. As shown in FIG. 3) of the hinge bracket (see reference numeral 100 in FIG. 2) can be received inward by using the fixing groove 203. The hinge bracket (see FIG.

The third coupling portion 230 is also spaced from the hinge bracket 100. Therefore, even when the wiper arm is coupled to the third coupling portion 230, seesaw motion between the hinge bracket 100 and the connection bracket 200 is not disturbed. For example, when the hinge bracket 100 is coupled to the lower portion of the connection bracket 200, the third coupling portion 230 can be positioned above the connection bracket 200 (see FIG. 2).

A first wiper arm (see FIG. 8A) having an inverted 'U' shape opened to the lower side and having an inverted U-shaped cross section and having a hook (see A3 in FIG. 8A) And the second coupling portion 220 is opened to the lower portion to form an inverted U shape having an inverted U-shaped cross section and a forward (U-shaped) U- The first projection of the second wiper arm (see B in Fig. 9A) including the first projection (see B11 in Fig. 9A) and the second projection (see B21 in Fig. Further, a third wiper arm (refer to C in Fig. 10A) of a hook shape bent in a backward direction (the direction opposite to the X axis in Fig. 3) is engaged with the third coupling portion 230. [ That is, the first coupling part 210, the second coupling part 220, and the third coupling part 230 are formed on the inner side or the outer side of the connection bracket 200 in the above-described organic shape, And can be easily combined with the wiper arm. The joining process of the wiper arm will be described later in more detail.

On the other hand, the first coupling portion 210 can more firmly fix the first wiper arm (see A in FIG. 8A) with the help of the first auxiliary coupling portion 240. The first auxiliary coupling portion 240 is elastically coupled to the first sidewall portion 201 and the second sidewall portion 202 and is fixed to the second fixed portion 240 by being projected to be hooked on the hook of the first wiper arm (see A3 in Fig. And includes a projection 241 and a second pressing protrusion 242 protruding further outward than the second fixing protrusion 241. [ The first auxiliary coupling portion 240 may be integrally formed with the first sidewall portion 201 and the second sidewall portion 202.

The second fixing protrusions 241 protrude outward from the first sidewall portions 201 and the second sidewall portions 202 and the second pressing protrusions 242 also protrude outward as shown in Fig. And protrudes outward from the first side wall portion 201 and the second side wall portion 202, respectively. Since the second pressing protrusion 242 protrudes more than the second fixing protrusion 241, the second pressing protrusion 242 can press the first auxiliary coupling portion 240 easily. Therefore, the first auxiliary coupling portion 240 can be elastically deformed and restored.

The first auxiliary coupling portion 240 may also have a locking protrusion 243 formed therein. The latching protrusion 243 is inserted into the latching groove 302 of the cover unit 300 to securely fix the cover unit 300 when the cover unit 300 is closed. Therefore, the closed state of the cover portion 300 can be easily maintained.

The second coupling portion 220 can more firmly fix the second wiper arm (see B in FIG. 9A) with the help of the second auxiliary coupling portion 250. [ The second auxiliary coupling portion 250 is elastically coupled to the first sidewall portion 201 and the second sidewall portion 202 and is engaged with the second projecting portion (see B21 in Fig. 9A) of the second wiper arm 3 fixing protrusion 251 and a third pressing protrusion 252 protruding further than the third fixing protrusion 251 and located under the third fixing protrusion 251. [ The second auxiliary coupling portion 250 may also be formed integrally with the first sidewall portion 201 and the second sidewall portion 202.

5 (c), the third fixing protrusion 251 protrudes outward from the first side wall portion 201 and the second side wall portion 202, respectively, and the third pressing protrusion 252 Protrudes outward from the first sidewall portion 201 and the second sidewall portion 202 below the third fixing protrusion 251. [ The third pressing protrusion 252 protrudes further than the third fixing protrusion 251 so that the third pressing protrusion 252 can be easily pressed to press the second auxiliary coupling part 250 and the second auxiliary coupling part 250 can be elastically As shown in FIG.

In particular, the third fixing protrusions 251 may be formed in a wedge shape as shown in FIG. That is, the third fixing protrusion 251 may be formed in a shape corresponding to the second protrusion (refer to B21 in FIG. 9A) of the second wiper arm including the inclined portion, and may include a pointed protruding and inclined portion And can be more tightly adhered to the second projection.

However, the shape of the third fixing protrusion 251 need not be limited to such a shape, but may be deformed to a shape suitable for the shape of the wiper arm. When the shape of the protrusion of the second wiper arm changes, the shape of the third fixing protrusion 251 may be correspondingly deformed.

The curved surface engaging portion 260 is formed on the first side wall portion 201 and the second side wall portion 202 and the curved surface engaging portion 260 is in close contact with the first wiper arm The first wiper arm can be more firmly fixed. The curved surface coupling portion 260 may be formed as a curved surface recessed toward the front of the connection bracket 200 (the direction toward the X axis in Fig. 3). The size and degree of refraction of the curved surface coupling portion 260 may be deformed corresponding to the shape of the first wiper arm.

Hereinafter, the cover portion will be described in more detail with reference to Figs. 6 and 7. Fig.

FIG. 6 is a perspective view illustrating a state in which the connection bracket and the cover portion of FIG. 2 are coupled to each other, and FIG. 7 is a side view of the connection bracket and the cover portion of FIG.

6, the cover part 300 rotates about the hinge shaft 204 and closes and completely receives the connection bracket 200 in the closed state. 7, the coupling hole 311 of the cover part 300 is completely overlapped with the first through hole 201a and the second through hole 202a of the connection bracket 200 . Therefore, the coupling hole 311 and the first through hole 201a and the second through hole 202a communicate with each other.

The coupling hole 311 is formed on the side of the cover part 300 and constitutes the fourth coupling part 310 together with the indentation groove 312 and the insertion groove 313 on the cover part 300. A first pin (see D1 in Fig. 11A) protruding in a lateral direction (a direction parallel to the Y axis in Fig. 3) (extending along the first pin) and a second pin (See D in FIG. 11A) including a second pin (refer to D2 in FIG. The second pin is supported inside the indentation groove 312 formed by recessing the surface of the cover part 300 so that the fourth wiper arm is fixedly fixed to the front or rear side (the direction parallel to the X axis of FIG. 3) .

That is, the fourth wiper arm may be formed by using a plurality of grooves or holes (engagement holes, first through holes, second through holes, indentation grooves, and insertion grooves) formed in different directions in a state where the cover portion 300 is closed It is easy to combine. On the other hand, the first wiper arm, the second wiper arm, and the third wiper arm can be completely fixed when the cover part 300 is coupled with the cover part 300 opened, and then the cover part 300 is closed. Hereinafter, the joining process of the wiper arm will be described in detail.

FIGS. 8A to 8C are views showing a process of combining the wiper and the first wiper arm of FIG. 1, and FIGS. 9A to 9C are views showing a process of combining the wiper and the second wiper arm of FIG. FIGS. 10A to 10C are views showing a process of combining the wiper and the third wiper arm of FIG. 1, and FIGS. 11A to 11C are views showing a process of combining the wiper and the fourth wiper arm of FIG.

First, referring to Figs. 8A to 8C, the process of joining the first wiper arm will be described.

Referring to FIG. 8A, the first wiper arm A may include an upper portion A1 and a side portion A2 to form an inverted 'U' shape having an inverted U-shaped cross section. A hook portion A3 protruding inward (in a direction parallel to the Y-axis of Fig. 3) is formed at an end of the side portion A2.

In order for the first wiper arm A to be engaged, the cover part 300 is prepared in an open state. The first side wall part 201, the second side wall part 202, the first coupling part 210 and the first auxiliary coupling part 240 of the connection bracket 200 are exposed to the outside.

Referring to FIG. 8B, the first wiper arm A is inserted into the connection bracket 200 in this state. Particularly, the first wiper arm A can be inserted such that the front curved portion A4 faces the curved coupling portion 260. However, the manner in which the first wiper arm A is engaged does not need to be limited in this way. The first wiper arm A may be inserted in parallel with the connection bracket 200 for convenience.

8C, the first wiper arm A is in close contact with the connection bracket 200 and the first fixing protrusion 211 and the first pressing protrusion 212 of the first coupling portion 210 are engaged with each other, The hook A3 of the first wiper arm A is inserted. In addition, the hook A3 is caught by the second fixing protrusion 241 of the first auxiliary coupling portion 240 and can not retract rearward (in the direction opposite to the X-axis of Fig. 3). Therefore, the first wiper arm A is firmly fixed to the connection bracket 200.

The curved surface portion A4 of the first wiper arm A is brought into close contact with the curved surface engaging portion 260 to minimize the movement of the first wiper arm A. [ Therefore, the fixed state of the first wiper arm A can be further strengthened. When the cover portion 300 is closed after being coupled in this manner, the wiper is mounted on the first wiper arm A.

On the other hand, when the wiper is to be separated from the first wiper arm A, the cover portion 300 may be opened and the first pressing projection 212 and the second pressing projection 242 may be pressed to release the coupling. Also, when the first wiper arm A is engaged, the first pressing protrusion 212 and the second pressing protrusion 242 are pressed to elastically deform the first coupling portion 210 and the first auxiliary coupling portion 240, So that the first wiper arm A can be more easily coupled to the connection bracket 200.

9A to 9C, the process of engaging the second wiper arm will be described.

Referring to FIG. 9A, the second wiper arm B may also be formed of an upper face portion B1 and a side face portion B2 to form an inverted 'U' shape having an inverted U-shaped cross section. However, in the second wiper arm B, the first projection B11 protrudes forward from the upper face B1 toward the X axis in Fig. 3, and the second projection B21 extends from the side face B2 (In the direction opposite to the direction of the X-axis in Fig. 3).

The cover part 300 is also prepared to be opened in order to engage the second wiper arm B and the first and second side wall parts 201 and 202 of the connection bracket 200, And the second coupling portion 220 and the second auxiliary coupling portion 250 are exposed to the outside.

9B and 9C, the second wiper arm B is inserted into the connection bracket 200 in this state. 9B, the first protrusion B11 of the second wiper arm B may be inserted first toward the lower side of the second engaging portion 220. As shown in Fig. 9C, the second projecting portion B11 of the second wiper arm B is rotated as shown in Fig. 9C by supporting the first projecting portion B11 on the second engaging portion 220 and rotating the second wiper arm B, Is brought into close contact with the third fixing protrusion 251 of the second auxiliary coupling portion 250.

The second fixing protrusions 241 are formed in a wedge shape as described above, whereby the inclined portions can be formed on the surface of the second fixing protrusions 241. The second projection B21 of the second wiper arm B can be joined more flexibly by slanting contact with the second fixing protrusion 241 including the inclined portion.

Thus, the second wiper arm B is engaged with the connection bracket 200. Thereafter, as described above, the cover portion 300 is closed and the wiper can be securely mounted on the second wiper arm B. When the wiper is to be separated from the second wiper arm B, the cover portion 300 may be opened and the third pressing protrusion 252 may be pressed to deform the second auxiliary coupling portion 250, The engagement between the third fixing projection 251 and the second projection B21 of the second wiper arm B can be released first and the second wiper arm B can be more easily separated.

10A to 10C, the process of joining the third wiper arm will be described.

Referring to FIG. 10A, the third wiper arm C includes a refracting portion C1 at the front, thereby forming a hook shape that is refracted backward. In order for the third wiper arm C to be engaged, the cover part 300 is also prepared in an open state as before. The first and second sidewall portions 201 and 202 of the connection bracket 200 and the third coupling portion between the first sidewall portion 201 and the second sidewall portion 202 230 are exposed.

10B and 10C, the third wiper arm C is inserted between the first sidewall part 201 and the second sidewall part 202 to form the third engagement part 230). The third wiper arm C may be inserted from the upper side of the connection bracket 200 downward and may be inserted in the direction from the front of the second engagement portion 220 to the second engagement portion 220 The direction parallel to the X axis).

That is, the second coupling portion 220 may be resiliently bent outwardly of the first sidewall portion 201 and the second sidewall portion 202 due to elastic force. Also, the second coupling portion 220 can guide the third wiper arm C to be easily moved using the inclined portion as shown in the drawing. Therefore, the third wiper arm C can be easily inserted in various directions such as above or forward of the connection bracket 200. [

In this state, the third wiper arm C is completely moved rearward (in the direction opposite to the X axis of Fig. 3) of the connection bracket 200. [ Then, as shown in FIG. 10C, the refracting portion C1 of the third wiper arm C engages with the third engaging portion 230 and is firmly fixed.

After the cover unit 300 is closed in this manner, the wiper is mounted on the third wiper arm C when the cover unit 300 is closed. When the wiper is to be separated from the third wiper arm C, the cover part 300 may be opened and the third wiper arm C may be moved to the front of the connection bracket 200 to reverse the coupling process.

11A to 11C, the process of engaging the fourth wiper arm will be described.

Referring to FIG. 11A, the fourth wiper arm D may be formed in a characteristic shape in which the first pin D 1 and the second pin D 2 protrude from each other. The first pin D1 and the second pin D2 are parallel to each other and the first pin D1 is formed in a cylindrical shape and the second pin D2 is formed in a plate shape. The end portion D21 of the second fin can be bent downward (in the direction opposite to the Z axis of Fig. 3) of the connection bracket 200. [

On the other hand, in order for the fourth wiper arm to be engaged, the cover portion 300 is prepared in a closed state. When the cover part 300 is closed, the coupling hole 311 of the cover part 300 communicates with the first through hole 201a and the second through hole 202a of the connection bracket 200.

Referring to Figs. 11B and 11C, in this state, the first pin D1 is inserted as shown in Fig. 11B. The first fin D1 can reach the first through hole 201a and the second through hole 202a through the coupling hole 311. [ Since the coupling hole 311, the first through hole 201a, and the second through hole 202a are all formed in a cylindrical shape, the first pin D1 can be easily rotated from the inside.

When the fourth wiper arm D is rotated around the first pin D 1, the second pin D 2 is brought into close contact with the indentation groove 312 of the cover portion 300 as shown in FIG. 11C. In particular, the end portion D21 of the second fin can pass through the insertion groove 313 and can be completely fixed to the inside of the insertion groove 313.

That is, the first pin D 1 and the second pin D 2 of the fourth wiper arm D are connected to each other by using the coupling hole 311, the indentation groove 312 and the insertion groove 313, Can be firmly fixed. When the wiper is to be separated from the fourth wiper arm D, the fourth wiper arm D is rotated again in the opposite direction about the first pin D 1, Can be released. Then, when the first pin D 1 is removed, the fourth wiper arm D is easily separated.

In this way, one wiper can be easily combined with the wiper arm of different coupling structure.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the embodiments described above are in all respects illustrative and not restrictive.

1: Automotive wiper with multiple coupling structure 10: Wiper blade
100: hinge bracket 110: hinge part
120: Fixing part 200: Connection bracket
201: first side wall portion 201a: first through hole
202: second side wall portion 202a: second through hole
203: fixing groove 204: hinge shaft
210: first coupling portion 211: first fixing projection
212: first pressing projection 220: second coupling portion
230: third coupling portion 240: first auxiliary coupling portion
241: second fixing projection 242: second pressing projection
243: locking protrusion 250: second auxiliary coupling portion
251: third fixing projection 252: third pressing projection
260: Curved surface coupling part 300: Cover part
301: hinge groove 302: latching groove
310: fourth coupling portion 311: coupling hole
312: indentation groove 313: insertion groove
A: first wiper arm B: second wiper arm
C: Third wiper arm D: Fourth wiper arm
A1, B1: upper surface portion A2, B2:
A3: hook A4: curved portion
B11: first protrusion B21: second protrusion
C1: refracting portion D1: first pin
D2: second pin D21: second pin end

Claims

wiper blade;
A hinge bracket fixed to the wiper blade and having a hinge portion;
A connecting bracket coupled to the hinge and seesawing and connected to a wiper arm of the vehicle; And
And a cover portion hinged to the connection bracket and receiving the entire connection bracket therein and fixing the wiper arm connected to the connection bracket,
The connection bracket
A first sidewall portion and a second sidewall portion coupled to the hinge portion and formed parallel to each other in the longitudinal direction of the wiper blade;
A first through hole and a second through hole included in the first side wall portion and the second side wall portion and passing through each other;
A first engaging portion elastically coupled to an outer side of the first side wall portion and the second side wall portion and having a first fixing protrusion protruded outward;
A second engaging portion protruding inwardly from the first side wall portion and the second side wall portion and spaced apart from the hinge bracket;
A third engaging portion connecting the first side wall portion and the second side wall portion and spaced apart from the hinge bracket; And
And a first auxiliary coupling portion elastically coupled to the first side wall portion and the second side wall portion and having a locking protrusion for fixing the cover portion,
The cover portion
And a fourth coupling portion including a coupling hole communicating with the first through hole on a side portion thereof,
Wherein the connection bracket and the cover portion are selectively coupled to different wiper arms using different coupling structures.

The method according to claim 1,
Wherein the first engaging portion further includes a first pushing protrusion protruded outwardly from the first fixing protrusion at one side thereof.

3. The method of claim 2,
The first coupling portion is coupled to a first wiper arm having an inverted 'U' shape opened to the lower side and having an inverted U-shaped cross section and having an inner hook formed therein,
Wherein the first auxiliary coupling portion includes a second fixing projection projected to be hooked on the hook and a second hook protruding outwardly from the second fixing projection on one side.

The method of claim 3,
Further comprising a curved surface engaging portion projected forward so that the first side wall portion and the second side wall portion are in contact with the first wiper arm, respectively.

The method according to claim 1,
The second coupling portion includes a first protrusion formed of an upper portion and two side portions and protruding from the upper portion in a forward direction so as to form an inverted U shape having an inverted U shape, The first protrusion of the second wiper arm including the second protrusion protruding rearward from the side portion is engaged,
A third fixing protrusion elastically coupled to the first side wall portion and the second side wall portion and protruded so as to catch the second protrusion; a second protrusion protruding outwardly from the third fixing protrusion on one side, And a second auxiliary coupling portion including a third pushrod located in the second auxiliary coupling portion.

The method according to claim 1,
A third wiper arm having a hook shape bent in a backward direction is coupled to the third coupling portion,
And the third coupling portion accommodates the hinge portion inside.

delete

The method according to claim 1,
And a fourth wiper arm coupled to the fourth coupling portion, the fourth wiper arm including a first pin protruding in a lateral direction and a second pin extending in parallel with the first pin and bent downward,
And the fourth engaging portion further includes a depression groove in which a part of the second fin is received in the cover portion and an insertion groove into which an end portion of the second fin is inserted.