KR20100005707U - Device for coupling a top lock type wiper arm to a wiper blade - Google Patents

Abstract

The present invention relates to a device for removably coupling a toplocked wiper arm to a wiper blade.

The top lock type wiper arm coupling device according to the present invention includes a pair of side plates and a top plate each having a locking portion formed of a concave cutout portion, and a coupling element having a receiving space formed therein and a tongue curved forward at the front end of the coupling element. An apparatus for coupling a top-locked wiper arm having a wiper blade, comprising: a body coupled to the wiper blade, a cover rotatably coupled to the main end portion, and rotatably closed toward the main body to fix the tongue; And a first fastening part for fastening the cover and the main body, and a second fastening part for fastening the locking part and the main body of the top-locked wiper arm.

According to the present invention, the wiper blade and the top lock wiper arm can be easily coupled, and the reliability of the coupling is improved.

Wiper, Blade, Top Lock Arm, Adapter, Tongue, Cover, Tongue Storage

Description

DEVICE FOR COUPLING A TOP LOCK TYPE WIPER ARM TO A WIPER BLADE

The present invention relates to a device provided in the wiper blade to detachably couple the wiper arm to the wiper blade. In particular, the present invention relates to a device for removably coupling a toplocked wiper arm to a wiper blade.

Wipers used in automobiles generally have wiper blades, wiper arms and drive motors. One end of the wiper arm is coupled to the drive motor, and the wiper blade is attached to the free end. The wiper blades have a wiper strip that contacts the windshield of the vehicle. As the drive motor rotates, the wiper arm reciprocates, and the windshield is wiped by a strip of wiper blades attached to the free end of the wiper arm.

The method of coupling the wiper blade and the wiper arm includes a hook type, a top lock type, a side lock type, a bayonet type, and the like. The present invention is a coupling device of the top-locked wiper arm among these arms.

1 to 4, a coupling device of a top lock wiper arm according to the prior art will be described.

1 and 2 illustrate a coupling device of a top-locked wiper arm and a wiper blade according to the prior art disclosed in Korean Patent Publication No. 10-2005-85129.

As shown in Fig. 1, the wiper arm 20a has a coupling element 40a having a U-shaped cross section at its free end, and a curved tongue 44a is formed at the tip of the coupling element 40a. . Wedge shaped locking portions 43a are formed at the rear ends of the left and right legs 41a and 42a of the coupling element 40a, respectively.

As shown in FIG. 2, a support element 13a is attached to the middle of the frame 12 of the wiper blade 10. On the support element 13a is mounted an adapter 30a to which the coupling element 40a is coupled. The adapter 30a is pivotally mounted on the support element 13a by fitting the pin 14a into a bearing hole 32a formed in the side wall portion 31a. The rear end of the adapter 30a is provided with an actuating portion 33a that is elastically displaceable inward and has a wedge shape. In front of the operating portion 33a is formed a locking edge portion 34a that engages with the locking portion 43a of the coupling element 40a. At the front end of the adapter 30a, an opening 35a into which the tongue 44a is inserted is formed.

1 and 2, the tongue 44a is inserted into the opening 35a to support the tongue 44a with respect to the inner wall of the opening 35a, and the wiper blade 10 is rotated so that the coupling element ( The wiper blade 10 and the wiper arm 20a are mutually snapped by snap-locking the locking portion 43a of the 40a and the locking edge portion 34a of the operating portion 33a in an interlocking manner.

3 and 4 illustrate a coupling device of another top-locked wiper arm and a wiper blade according to the prior art disclosed in Korean Patent Publication No. 10-2005-7446.

Referring to FIG. 3, the wiper arm 20b has a coupling element 40b having a U-shaped cross section at its free end, and the coupling element 40b has a locking portion at the rear end of its left and right side plates 41b and 42b. 43b is provided, respectively. A first tongue 44b is formed at the tip of the coupling element 40b, and a second tongue 45b protruding forward is formed at the edge of the opening 46b.

Referring to FIG. 4, an adapter 30b is installed on a support element 13b disposed in the middle of the frame 12. At the rear end of each side wall portion of the adapter 30b, an actuating portion 33b formed in a wedge shape and elastically displaceable inward is formed, and a locking edge portion 34b is formed in front of the actuating portion 33b. The first tongue storage part 35b is opened in front of the adapter 30b, and an empty space is formed between the operation part 33b at the rear, and the second tongue storage part 36b is formed.

In the coupling device shown in FIGS. 3 and 4, the wiper blade 10 is inserted such that the first tongue 44b is inserted into the first tongue storage portion 35b and the second tongue 45b is inserted into the second tongue storage portion 36b. ) Is inserted into the coupling element 40b. When the insertion is completed, the locking edge portion 34b of the operating portion 33b and the locking portion 43b of the coupling element 40b are engaged with each other and snapped to engage each other, so that the engagement of the wiper blade 10 and the wiper arm 20b is achieved. Is done.

However, the above-described top lock type coupling device according to the prior art pushes the operating portions 33a and 33b from behind to engage the locking portions 43a and 43b with the locking edge portions 34a and 34b formed on the wiper arm. Or, because it must be elastically deformed by pressing from the top, when the wiper arm and the wiper blade is coupled or disengaged, there is a problem that the user has to deform the operating unit (33a, 33b) by giving a lot of force.

In addition, the load after the coupling is concentrated a lot in the operating portion (33a, 33b), there is another problem that the durability is low because it can not be sufficiently reinforced for elastic deformation.

The present invention is to solve the above problems, do not put a lot of force when the wiper blade and the wiper arm is combined, the operation part is unnecessary, high reliability and durable wiper blade and top lock wiper arm coupling The object is to provide a device.

In order to solve the above object, the top-lock wiper arm coupling device according to the present invention is provided with a pair of side plate and the top plate each formed with a locking portion consisting of a concave notched portion and the coupling element is formed in the receiving space inside A device for engaging a top lock wiper arm having a tongue curved forward at a distal end of a coupling element to a wiper blade, comprising: a main body coupled to the wiper blade, and rotatably coupled to the main body end and rotatable toward the main body. The cover includes a cover for fixing the tongue, a first fastening portion for fastening the cover and a main body, and a second fastening portion for fastening the locking portion and the main body of the top-locked wiper arm.

The first fastening part may include a first fastening protrusion extending inwardly from both sides of the cover, and the side wall of the main body may extend outwardly from upper end portions of both side walls of the main body, and may be bent in parallel with the side wall at a predetermined distance from the side wall. A cover fastening portion capable of elastic deformation in a direction, and a second fastening protrusion which protrudes outward in the width direction of the main body to the cover fastening portion and engages with the first fastening protrusion of the cover member in a state where the cover member is closed. It may include. An end portion of the cover fastening portion may have a pressing portion protruding outward in the width direction of the main body.

The second fastening portion protrudes from both sides of the rear end of the main body, and preferably has a locking edge corresponding to the recessed portion of the locking portion on the front surface.

An opening may be formed at the rear of the main body, and a hook may be formed upward.

Preferably, the main body further includes support plates protruding to both sides of the main body so as to correspond to the side wall of the front end of the coupling element.

It is preferable that the front side of the main body is provided with a tungsten storage portion opened upwards. In this case, the cover opens and closes the tongue storage portion, and an inner side of the cover is formed with an upper support protrusion protruding downward to prevent the tongue from swinging from the upper portion of the tongue, and the tongue storage portion has a tongue at the bottom of the tongue. In order to prevent rocking, it is preferable that a lower support protrusion protruding upward is formed.

According to the present invention, it is possible to cover the tongue housing with the rotatable cover so that the locking protrusion of the wiper blade and the locking portion of the wiper arm can be engaged with each other, and the tongue can be placed on the tongue housing, and then the cover can be coupled to close the coupling work. no need.

In addition, according to the present invention, the locking projection and the locking portion does not need an elastically deformed operation part to engage with each other, so the coupling reliability of the locking protrusion and the locking portion is high and durability is improved.

Hereinafter, the top lock wiper arm coupling device according to the present invention will be described in detail with reference to FIGS. 5 to 10.

In this embodiment, the same arm as the top-locked arm shown in FIG. 1 is used. That is, referring to FIG. 1, the wiper arm 20a has a coupling element 40a having a U-shaped cross section at its free end, and the coupling element 40a is located at the rear ends of the left and right side plates 41a and 42a. Each locking part 43a is provided. Tongue 44a is formed at the tip of the coupling element 40a.

Figure 5 is an exploded perspective view showing the adapter of the wiper blade and the top-lock wiper arm coupling device according to the present invention, Figure 6 is a perspective view of the cover of Figure 5, Figure 7 is a part of the adapter body of Figure 5 It is a perspective view shown. Although the blade is omitted in the figure, the adapter is rotatably coupled to the blade.

As shown in FIGS. 5-7, the adapter 100 includes a body 130 and a cover 138 rotatably coupled to the body 130.

The cover 138 and the main body 130 are formed with a first fastening portion for fastening therebetween, and the configuration thereof is as follows.

The front end portion of the cover 138 is provided with a rotating shaft (1381) protruding toward the center portion from both sides in the width direction, the first fastening projection (1384) protruding toward the inner side on both sides of the cover 138 is provided.

The rotary shaft 1361 of the cover 138 is inserted into the front end of the main body 130 and the rotary shaft coupling portion 131 is rotatably coupled. A cover fastening portion 132 is formed on the side wall of the adapter body 130 and extends in the width direction from the upper end portions of both side walls of the body 130 and is bent at a predetermined distance. The cover fastening part 132 may elastically deform in the width direction of the main body 130. The cover fastening portion 132 is formed with a second fastening protrusion 1322, which can be engaged with the first fastening protrusion 1384 of the cover. Lower ends of both cover fastening portions 132 are formed with pressing portions 1321 protruding outward in the width direction of the main body 130 so that the user can elastically deform the cover fastening portions 132.

The rotating shaft 1341 of the cover 138 is coupled to the rotating shaft coupling portion 131 of the main body 130. The cover 138 rotates in front of the main body 130 to close the upper surface of the main body 130 and opens away from the upper surface of the main body 130. When the cover 138 in the open state rotates toward the main body 130 and the first fastening protrusion 1338 and the second fastening protrusion 1322 are in contact with each other, the cover fastening portion 132 is pushed and deformed inward so that the first fastening protrusion ( 1384 may rotate past the second fastening protrusion 1322. When the cover 138 continues to rotate and the contact between the first fastening protrusion 1384 and the second fastening protrusion 1322 ends, the cover fastening portion 132 elastically deforms to its original position so that the first fastening protrusion 1384 and the second fastening protrusion 1342 and the second fastening protrusion 1342 are closed. The fastening protrusions 1322 are engaged with each other. The cover 138 is not opened by the engagement of the first fastening protrusion 1344 and the second fastening protrusion 1322. When the user presses the pressing part 1321 to elastically deform the cover fastening part 132, the engagement between the first fastening protrusion 1338 and the second fastening protrusion 1322 may be released and the cover 138 may be opened.

The locking protrusion 133 protrudes from both sides of the rear end of the main body 130 as a second fastening portion that couples the adapter body 130 and the side wall of the arm. On the front surface of the locking projection 133, a locking edge portion 134 corresponding to the locking portion 43a of the arm is formed.

In front of the main body 130, the tongue storage part 135 is opened upward. The tongue storage portion 135 is provided with a lower support protrusion 1351 for preventing the swing of the lower surface of the tongue 44a of the arm.

The cover 138 covers the tongue storage unit 135 in the closed state. An upper support protrusion 1385 is formed inside the cover to prevent rocking of the upper surface of the tongue 44a. Therefore, when the tongue 44a is inserted into the tongue storage unit 135, the cover 138 may be closed to support the tongue 44a between the upper support protrusion 1385 and the lower support protrusion 1351. The cover 138 is provided with a tongue storage groove 1382 having a distance equal to the thickness of the tongue so as not to interfere with the tongue 44a.

Both sides of the main body 130 are formed by protruding the support plate 139 for supporting the arm so as not to move forward after the arm is coupled.

The rear end of the main body 130 is formed with a hook 137 facing upwards, the rear of the main body 130 is opened to form an open hole 136. They are not used to engage the engagement element 40a of the arm of FIG. 1, but are used to join the engagement element 40b of the arm of FIG. That is, in the arm of FIG. 3, the first tongue 44b is inserted into the tongue storage part 135, and the locking part 43b is fixed in contact with the locking protrusion 133. The second tongue 45b is inserted into the opening 136, and the hook 137 is inserted into the opening 46b in front of the second tongue 45b to further strengthen the engagement of the arm.

Hereinafter, a process and a fastening state in which the top lock arm 40b is fastened to the adapter 100 will be described with reference to FIGS. 8 to 10.

FIG. 8 is a side view illustrating a process of fastening the top lock arm to the adapter coupled to the wiper blade, FIG. 9 is a perspective view showing a state in which the adapter and the top lock arm are fastened, and FIG. 10 is a view of the adapter and the top lock. It is a side sectional view which shows the state in which a formula arm was engaged.

As shown in FIG. 8, when the top lock arm is rotated while the locking portion 43b of the coupling element 40a of the arm is seated on the locking protrusion 133, the tongue 44a is attached to the tongue storage portion 135. Is inserted. Closing the cover 138 in the state where the tongue 44a is inserted into the tongue storage part 135 completes the fastening of the adapter and the arm. Therefore, the wiper blade and the wiper arm can be fastened easily.

As shown in FIG. 9, the locking protrusion 133 meshes with the locking portion 43a while the adapter 100 and the top lock arm of FIG. 1 are engaged, and the tongue 44a is the tongue storage portion 135. Is inserted into The cover 138 covers the upper portion of the tongue 44a, and the upper support protrusion 1385 of the cover 138 and the lower support protrusion 1351 of the tongue storage portion 135 support the tongue 44a up and down. The first fastening protrusion 1342 of the cover 138 and the second fastening protrusion 1322 of the cover fastening portion 132 of the adapter body 130 are engaged with each other. The tip end of the leg 41a faces the support plate 139. Since the opening of the arm of FIG. 1 is not formed upward in a position corresponding to the hook 137, the hook 137 is pushed against the upper surface of the coupling element 40a to elastically deform into the body 130.

As shown in FIG. 10, in the state where the adapter 100 and the top-locked arm of FIG. 3 are engaged, the locking protrusion 133 meshes with the locking portion 43b of the arm, and the first tongue 44b of the arm. Is inserted into the tongue storage part 135, and the second tongue 45b of the arm is inserted into the rear opening hole 136. The hook 137 protrudes outward from the opening 46b formed above the coupling element 40b. The cover 138 covers the upper portion of the first tongue 44b, and the upper support protrusion 1385 of the cover 138 and the lower support protrusion 1351 of the first tongue storage portion 135 may cover the first tongue 44b. Support up and down. The first fastening protrusion 1342 of the cover 138 and the second fastening protrusion 1322 of the cover fastening portion 132 of the adapter body 130 are engaged with each other. The tip end of the leg 41b faces the support plate 139.

In the above state, the arm is constrained by the forward and backward movement by the locking protrusion 133 and the support plate 139. In addition, the tongue 44a (or the first tongue 44b) is supported in the cover 138 to constrain the vertical movement of the arm. On the other hand, in the case of the arm with the second tongue 45b, the up and down movement of the arm in the opening hole 136 is constrained. In addition, in the case of the arm with the opening part 46b, the movement of the front-back direction is restrained by the hook 137. FIG.

Therefore, it is easy to couple an arm to the adapter 100, and the engagement state becomes firm.

The present invention as described above is not limited to the above-described embodiment and the accompanying drawings, it is common in the field of the present invention that various substitutions, modifications and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 and 2 are a perspective view showing a coupling device of the top-locked wiper arm and the wiper blade according to the prior art,

3 and 4 are a perspective view showing a coupling device of the top-locked wiper arm and the wiper blade according to another prior art,

5 is an exploded perspective view showing the adapter of the wiper blade and the top-lock wiper arm coupling device according to the present invention,

6 is a perspective view of the cover of FIG. 5, FIG.

7 is a perspective view showing a part of the adapter body of FIG. 5;

8 is a side view illustrating a process of fastening the top-locked arm to the adapter coupled to the wiper blade;

9 is a perspective view showing a state where the adapter and the top-locked arm are engaged;

10 is a side cross-sectional view showing a state where the adapter and the top lock arm are engaged.

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

100: adapter 130: cover

131: rotating shaft coupling portion 132: cover fastening portion

1321: pressing part 1322: second fastening protrusion

133: locking projection 134: locking edge

135: tongue storage unit 1351: lower support projection

136: opening hole 137: hook

138: cover 1381: axis of rotation

1382: tongue storage groove 1384: first fastening protrusion

1385: upper support protrusion 139: support plate

Claims (9)

A top lock wiper arm having a coupling element having a receiving space formed therein and a tongue curved forward at the front end of the coupling element, having a pair of side plates and a top plate each formed with a concave cutout portion, coupled to the wiper blade. In the device, A main body coupled to the wiper blade, A cover rotatably coupled to the main body end and fixed to the tongue by being rotated and closed toward the main body, A first fastening part for fastening the cover to the main body; And a second fastening portion for fastening the locking portion and the main body of the top-locked wiper arm. Top-lock wiper arm combiner. The method of claim 1, The first fastening portion, First fastening protrusions extending inwardly from both sides of the cover; A cover fastening portion extending outwardly from the upper end portions of both side walls of the main body, spaced apart from the side wall, bent in parallel with the side wall, and elastically deformed in the side wall direction; The cover fastening portion is formed to protrude outward in the width direction of the main body and includes a second fastening protrusion engaged with the first fastening protrusion of the cover member in a state in which the cover member is closed. Top-lock wiper arm combiner. The method of claim 2, Top-lock wiper arm engaging device formed with a pressing portion protruding outward in the width direction of the main body at the end of the cover fastening portion. The method of claim 1, And a second locking portion protruding from both sides of the rear end portion of the main body, and a locking protrusion having a locking edge corresponding to the recessed portion of the locking portion on a front surface thereof. The method of claim 1, Top lock type wiper arm coupling device formed in the back of the main body opening hole. The method of claim 1, Top lock wiper arm coupling device is formed in the main body upward hook. The method of claim 1, The main body further comprises a support plate protruding to both sides of the main body corresponding to the side wall of the front end of the coupling element. The method according to any one of claims 1 to 7, Top lock type wiper arm coupling device which is provided in the front of the main body is opened to the upper side. The method of claim 8, The cover opens and closes the tongue storage unit, An upper support protrusion protruding downward is formed inside the cover to prevent rocking of the tongue from the top of the tongue. The tongue storage portion is provided with a lower support protrusion protruding upwards to prevent rocking of the tongue at the bottom of the tongue. Top-lock wiper arm combiner.

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