TWI439383B - Wiper connector and manufacturing method thereof, and wiper connector assembly - Google Patents

Description

Wiper connector and manufacturing method thereof, and wiper connector combination

The present invention relates to a wiper connector and a method of manufacturing the same, and a wiper connector assembly, and more particularly to a wiper connector that is attached to a wiper blade for attachment to a wiper arm, and a method of manufacturing the wiper connector, and A wiper connector assembly includes a wiper connector and an adapter, wherein the adapter connects the wiper connector to the wiper arm.

Referring to FIGS. 1 and 2 , the prior art wiper structure includes a wiper connector 8 and a wiper blade 9 . The periphery of the wiper blade 9 is covered with a metal sheet (not shown) with a plastic sheet and a blade is attached to the bottom thereof. The wiper connector 8 includes a base 82 and a pair of fixing pieces 81a and 81b. The base 82 is bridged between the wiper blades 9 and screwed to the screw holes 90 of the wiper blade by screws 822. The pair of fixing pieces 81a and 81b are a pair of symmetrical metal plates. The prior art utilizes a rivet 83 through the pair of fixed pieces 81a and 81b, the base 82, and the wiper blade 9. In addition, a pivoting rod 812 is passed through the pair of fixing pieces 81a and 81b to be pivotally connected to the wiper arm (not shown).

The wiper connector of the prior art connected to the wiper blade 9 includes a base 82 and a pair of fixing pieces 81a and 81b for connection to the wiper blade 9. The wiper connector requires at least three components, which not only has high component cost, but also is cumbersome to assemble, thereby increasing assembly costs.

The reason is that the present inventors have felt that the above problems can be improved, and that the present invention has been deliberately studied and used in conjunction with the theory, and a present invention which is reasonable in design and effective in improving the above problems has been proposed.

The technical problem to be solved by the present invention is to provide a wiper connector and a method of manufacturing the same, and a wiper connector assembly, which reduces the number of components of the wiper connector and reduces the step of assembling the wiper blade.

In order to solve the above technical problem, according to one aspect of the present invention, a wiper connector is attached to a wiper blade and coupled to a wiper arm, which includes a mounting portion, a pair of flat portions, and a pair of vertical plates. The mounting portion has a pair of long sides and a pair of screw holes at the two ends thereof; the pair of flat portions are each bent outwardly from the pair of long sides of the mounting portion and are flattened to the mounting portion, wherein the mounting portion The width of the flattening portion is equal to half the width of the mounting portion; the pair of vertical plates are each extended by the pair of flattening portions and perpendicular to the mounting portion, wherein each of the vertical plates is outwardly formed with a shaft-shaped tube.

In order to solve the above technical problem, according to one aspect of the present invention, a method of manufacturing a wiper connector is provided, comprising the steps of: providing a metal plate; stamping the metal plate to form a blank plate, the blank plate including an installation And a pair of wings extending outwardly from both sides of the mounting portion; drilling a pair of screw holes at both ends of the mounting portion; drawing the pair of wings to form a shaft tube; and along the mounting portion The pair of wings are bent at both sides, such that each of the wings is bent flat against the flat portion of the mounting portion, and a vertical plate perpendicular to the mounting portion, wherein the pair of vertical plates are relatively vertical In the middle of the mounting portion, the shaft tube is located on the vertical plate and protrudes outward.

In order to solve the above problems, according to one aspect of the present invention, a wiper connector assembly is provided, which is fixed to a wiper blade and is coupled to a wiper arm, and includes a wiper connector fixed to the wiper blade and an adapter member. The wiper connector is rotatably coupled to one end of the wiper arm. The wiper connector includes a mounting portion having a pair of long sides and a pair of screw holes at opposite ends thereof; each of the pair of flat portions is bent outwardly from the pair of long sides of the mounting portion and pasted Flat with the mounting portion, wherein the flat portion has a width equal to half the width of the mounting portion; and a pair of vertical plate portions each extending from the pair of flat portions and perpendicular to the mounting portion, wherein each of the vertical plates A shaft tube is formed outward. The adapter includes a pair of pivoting pieces, each of which forms a pivoting hole, and the pair of shaft-shaped tubes of the wiper connector are correspondingly sleeved in the pair of pivoting holes.

The invention has the following beneficial effects: the wiper connector of the invention is a one-piece metal plate, which reduces the number of components and simplifies the step of assembling the wiper blade, thereby not only reducing the manufacturing cost but also reducing the assembly cost.

In order to further understand the technology, method and effect of the present invention in order to achieve the intended purpose, reference should be made to the detailed description and drawings of the present invention. The drawings and the annexed drawings are intended to be illustrative and not to limit the invention.

Please refer to FIG. 3 and FIG. 4 , which are a developed view of the wiper connector of the present invention and a perspective view of the wiper blade. The structure of the wiper connector 2 of the present invention, in conjunction with its method of manufacture, is described below. First, the preparation of the metal plate 1 is provided. The metal plate 1 is preferably a plate body having a certain thickness, for example, about 1 mm, which can be shaped after being bent and is not easily deformed by an external force. Then, the metal plate 1 is punched to form a blank plate, that is, a wiper connector 2 having a flattened shape. Then, a one-piece wiper connector 2 is completed by a metal working method such as bending, drawing, and the like through a folding bed. Next, the details are described below.

The blank plate includes a mounting portion 22 and a pair of wings W extending outwardly from both sides of the mounting portion 22. The mounting portion 22 has a substantially rectangular shape with two long sides, and a screw hole 220 is drilled at each end thereof to be screwed to the screw hole 90 of the wiper blade 9, as shown in FIG. The flap W is partially extended to both sides by the two long sides of the mounting portion 22, and the flap W and the mounting portion 22 have a slightly cross shape.

One of the features of the present invention is that the pair of wings W are each formed into a shaft-like tube 262 by means of drawing, forming an axis for pivoting. The wiper connector 2 is integrally formed with a pair of shaft-shaped tubes 262 to be pivotally connected to the wiper arm by a metal drawing process. Metal extraction processing is a stamping processing method that utilizes the ductility of metal to draw a flat sheet blank into a solid hollow member. Usually, the flat sheet blank is placed in a drawing die, and the sheet is punched by a drawing punch. The blank enters the drawing die.

The present invention also utilizes a metal bending method to bend the pair of wings W along both sides of the mounting portion 22, such that each of the wings W is bent to form a flat portion 24a and 24b, and a vertical portion Straight plates 26a and 26b, wherein the pair of flat portions 24a and 24b are flat on the top surface of the mounting portion 22, and the pair of vertical plates 26a and 26b are perpendicular to the mounting portion 22. After being bent, as shown in FIG. 4, the pair of flat portions 24a and 24b of the wiper connector 2 of the present invention are each bent outwardly from the long side of the mounting portion 22 and are flattened to the mounting portion 22. . The width of the flattening portions 24a and 24b is substantially equal to half the width of the mounting portion 22. The pair of vertical plates 26a and 26b each extend from the pair of flat portions 24a and 24b and are perpendicular to the mounting portion 22, wherein the shaft tube 262 is located at the vertical plates 26a and 26b and protrudes outward.

In order to facilitate the bending of the pair of wings W, a pair of notches 221 are formed in each of the long sides of the mounting portion 22 adjacent to the flat portion 22, and the mounting portion 22 has four notches 221 through the notches 221 The outer edges of the flat portions 24a and 24b may be aligned with the long sides of the mounting portion 22.

In order to strengthen the connection of the pair of vertical plates 26a and 26b to avoid outward folding, the pair of vertical plates 26a and 26b may further comprise at least one fixing structure, such as a screw or rivet passing through to securely connect the pair of vertical plates 26a and 26b. Together. In the embodiment of the present invention, as shown in FIG. 3, the fixing structure includes an engaging hole 264 located in one of the pair of vertical plates 26b, and a fitting protrusion 266 located on the other of the vertical plates 26a. The tight fitting protrusion 266 is engaged with the engaging hole 264.

In the method of manufacturing the wiper connector, the present invention further includes the steps of forming a pair of engaging holes 264 in one of the pair of vertical plates 26b and drawing to form at least one of the mating protrusions 266 to the other of the vertical members. The straight plate 26a, wherein the tight fitting protrusion 266 is engaged in the engaging hole 264. In the order of manufacture, the engagement holes 264 may be drilled into the vertical plate 26b when the blank plate is completed, and the tight projections 266 may be formed in the other vertical plate 26b by drawing. When the pair of vertical plates 26a, 26b are bent, the fitting projections 266 are tightly fitted into the engaging holes 264 to form a fixed structure on the pair of vertical plates 26a, 26b.

Referring to FIG. 4 and FIG. 5 , the present invention simplifies the step of fixing the wiper connector 2 to the wiper blade 9 , and the screw of the top surface of the wiper blade 9 is locked only by the two screws passing through the screw holes 220 at the two ends of the wiper connector 2 . The hole 90 is completed, which significantly simplifies the assembly steps and reduces labor assembly costs compared to the prior art. However, the present invention is not limited thereto, and the wiper connector 2 may be fixed to the wiper blade 9 by caulking.

Please refer to FIG. 6 , which is a schematic diagram of a wiper connector and an adapter, and a wiper arm according to another embodiment of the present invention. The wiper connector 2' of this embodiment differs from the above in that the pair of vertical plates 26a, 26b have no engaging holes 264 and tight fitting projections 266. When the metal sheet to which the present invention is applied has a suitable strength, the engaging hole 264 and the fitting projection 266 may be omitted because the strength of the sheet itself is sufficient for the pair of vertical plates 26a, 26b to abut.

The wiper connector 2' of the present invention can be coupled to the wiper arm 7 by an adapter 3. The wiper arm 7 has a grip portion 72, and the wiper connector 2' is fixed to the grip portion 72 of the wiper arm 7 by an adapter 3. The adapter 3 has a top wall 32 and a pair of side walls 34, each side wall 34 having an opening 340.

Please refer to FIG. 6A, which is a partial enlarged view of the adapter of the present invention. The adapter 3 of the present invention is characterized in that a pair of pivoting pieces 36 are located between the pair of side walls 34, and each of the pivoting pieces 36 forms a pivot hole 360. The pair of shaft-like tubes 262 of the wiper connector 2' (or 2) are correspondingly sleeved in the pair of pivot holes 360, whereby the wiper connector 2' is rotatably coupled to the adapter 3. The present invention is easier for the wiper connector 2' to be disposed within the adapter member 3, wherein the outer ends of the pair of pivot tabs 36 each define an inwardly facing ramp surface 362, i.e., the pair of pivotal tabs 36. The bevel 362 is opposite. The guiding surface 362 allows the shaft tube 262 to slide into the pivot hole 360.

The outer diameter of the shaft tube 262 of the wiper connector 2 (or 2') of the present invention is substantially equal to the inner diameter of the pivot hole 360. The adapter 3 is inserted into the nip portion 72 by the front end opening of the wiper arm 7, whereby the wiper blade 9 is rotatably coupled to the wiper arm 7 by the adapter 3.

Please refer to FIG. 7, which is a side view of a second embodiment of the adapter of the present invention. In view of the current variety of wiper arms and their adapters, the wiper connector 2 (or 2') of the present invention can be coupled to different wiper arms in conjunction with different adapters. The adapter 3a in the figure is fitted and fixed to the nip portion 72a of the other wiper arm 7a. Such an adapter 3a has a narrow width. Referring to FIG. 7A, the pivoting piece 36a of this embodiment is directly exposed, and no side wall is required. The pivoting piece 36a defines a pivot hole 360 and a guiding slope 362.

8 to 10 are side views of the third to fifth embodiments of the adapter of the present invention. The invention can also be applied to wiper arms of different specifications of various brands and their associated adapters. The third embodiment shown in Fig. 8 can be applied to the adapter 3b, and only a pair of pivoting pieces 36b are provided in the adapter 3b. The appearance of the adapter 3b can be applied to the associated wiper arm 7b and its clamping portion 72b without any change.

The fourth embodiment shown in Fig. 9 can also be applied to the adapter 3c, and only a pair of pivoting pieces 36c are provided in the adapter 3c. The appearance of the adapter 3c can be applied to the associated wiper arm 7c and its holding portion 72c without any change.

The fifth embodiment shown in FIG. 10 can also be applied to the adapter 3d, and only a pair of pivoting pieces 36d are disposed in the adapter 3d. The appearance of the adapter 3d can be applied to the associated wiper arm 7d and its holding portion 72d without change.

Please refer to FIG. 11 and FIG. 11A, which are perspective exploded views of a sixth embodiment of the adapter of the present invention. The adapter 3e includes an adapter inner member 3e' and an adapter outer member 3e". The adapter outer member 3e" has an outer casing 38, a through slot 382 extending through the outer casing 38, and a pair of The outer pivoting holes 380 of the two sides are fixed in the through slots 382. The two side walls of the inner connecting member 3e' respectively form a pivoting piece 36e, and each pivoting piece 36e A pivot hole 360 is formed, and the bottoms of the pair of pivoting pieces 36e each form an inward guiding slope 362.

Please refer to FIG. 12, which is a side view of a sixth embodiment of the adapter of the present invention and its associated wiper arm. The figure shows a side view of the combination of the adapters 3e, and can also be associated with the associated wiper arm 7e. The wiper arm 7e has a clamping portion 72e that protrudes through the adapter. The outer pivot hole 380 of the piece 3e" and the pivot hole 360 of the inner transfer piece 3e'.

The above is merely illustrative of the wiper connector of the present invention with an improved adapter, which can be applied to wiper arms of various brands, and does not limit the scope of application of the present invention. The wiper connector can be connected by simply providing a pivot piece on the associated adapter and forming a pivot hole.

Therefore, through the wiper connector of the present invention, it has the following features and functions:

1. The wiper connector 8 is integrally formed by a metal plate to simplify the number of components. The present invention only needs to be fixed to the wiper blade 9 by a pair of screws, which simplifies the assembly step.

Second, the wiper connector 8 itself can eliminate the need for screws or rivets, in line with the trend of environmental protection, using the metal's own extension characteristics, with bending, drawing processing, and form a strong structure.

3. The present invention is applicable to various types of wiper arms, and only needs to provide a pair of pivoting pieces and pivot holes in the relevant adapters. The invention does not require a pivot rod, reduces the number of parts, and reduces the cost.

However, the above description is only a preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, and the equivalent technical changes of the present specification and the contents of the drawings are all included in the present invention. Within the scope of the agreement, Chen Ming.

[Prior technology]

8. . . Wiper connector

81a, 81b. . . Fixed piece

812. . . Pivot rod

82. . . Base

822. . . Screw

83. . . rivet

9. . . Wiper blade

90. . . Screw hole

[this invention]

1. . . Metal plate

2, 2'‧‧‧ wiper connector

22‧‧‧Installation Department

220‧‧‧ screw hole

221‧‧ ‧ gap

24a, 24b‧‧‧ affixed

26a, 26b‧‧‧ vertical board

262‧‧‧ shaft tube

264‧‧‧Snap hole

266‧‧‧Fixed protrusions

W‧‧‧ wing

7, 7a, 7b, 7c, 7d, 7e‧‧‧ wiper arm

72, 72a, 72b, 72c, 72d, 72e‧‧ ‧ gripping section

3, 3a, 3b, 3c, 3d, 3e‧‧‧ adapters

3e’‧‧‧Transfer internals

3e”‧‧‧Transfer external parts

32‧‧‧ top wall

34‧‧‧ side wall

340‧‧‧Opening

36, 36a, 36b, 36c, 36d, 36e‧‧‧ pivoting piece

360‧‧‧Pivot hole

362‧‧‧Bevel

38‧‧‧Outer casing

382‧‧‧through slot

380‧‧‧ external pivot hole

Figure 1 is an exploded perspective view of a prior art wiper structure.

2 is a perspective assembled view of a prior art wiper structure.

Fig. 3 is a perspective view showing the unfolded wiper connector of the present invention.

4 is an exploded perspective view of the wiper connector and the wiper blade of the present invention.

Figure 5 is a perspective assembled view of the wiper connector and the wiper blade of the present invention.

Figure 6 is a perspective view of a wiper connector and adapter, and a wiper arm according to another embodiment of the present invention.

Figure 6A is a partial enlarged view of the adapter of Figure 6 of the present invention.

Figure 7 is a side elevational view of the second embodiment of the adapter of the present invention and its associated wiper arm.

Figure 7A is a partial enlarged view of a second embodiment of the adapter of the present invention.

Figure 8 is a side elevational view of a third embodiment of the adapter of the present invention and its associated wiper arm.

Figure 9 is a side elevational view of a fourth embodiment of the adapter of the present invention and its associated wiper arm.

Figure 10 is a side elevational view of the fifth embodiment of the adapter of the present invention and its associated wiper arm.

Figure 11 is a perspective exploded view of a sixth embodiment of the adapter of the present invention.

Figure 11A is another perspective exploded view of the sixth embodiment of the adapter of the present invention.

Figure 12 is a side elevational view of a sixth embodiment of the adapter of the present invention and its associated wiper arm.

2. . . Wiper connector

twenty two. . . Installation department

220. . . Screw hole

24a, 24b. . . Flattening

26a, 26b. . . Vertical board

262. . . Shaft tube

264. . . Engagement hole

266. . . Tight fit

9. . . Wiper blade

90. . . Screw hole

Claims (11)

A wiper connector, fixed to a wiper blade and coupled to a wiper arm, comprising: a mounting portion having a pair of long sides and a pair of screw holes at both ends thereof; a pair of flat portions, each of which is mounted by the mounting portion The pair of long sides are bent and extended to the mounting portion, wherein the flat portion has a width equal to half the width of the mounting portion; and a pair of vertical plates each extending from the pair of flat portions and perpendicular In the mounting portion, each of the vertical plates is outwardly formed with a shaft tube. The wiper connector of claim 1, wherein each of the long sides of the mounting portion forms a pair of notches adjacent to the flattening portion. The wiper connector of claim 1, wherein the pair of vertical plates have at least one fixed structure. The wiper connector of claim 3, wherein the fixing structure comprises an engaging hole in one of the pair of vertical plates, and a fitting protrusion on the other of the vertical plates, wherein the tight The engaging protrusion is engaged in the engaging hole. A method of manufacturing a wiper connector, comprising the steps of: providing a metal plate; stamping the metal plate to form a blank plate, the blank plate comprising a mounting portion and a pair of wings extending outwardly from opposite sides of the mounting portion a pair of screw holes are formed at two ends of the mounting portion; the pair of flaps are drawn to form a shaft tube; and the pair of flaps are bent along both sides of the mounting portion, so that each The flap is bent flattened to the flat portion of the mounting portion, and a perpendicular to the mounting a vertical plate of the portion, wherein the pair of vertical plates are relatively perpendicular to the middle of the mounting portion, wherein the shaft tube is located on the vertical plate and protrudes outward. The method of manufacturing a wiper connector according to claim 5, further comprising the step of forming a pair of notches adjacent to the flap on each side of the mounting portion. The method of manufacturing a wiper connector according to claim 5, further comprising the steps of: forming an engaging hole in one of the pair of vertical plates and forming a fitting protrusion on the other of the pair of vertical plates, wherein The tight fitting protrusion is engaged in the engaging hole. A wiper connector assembly, fixed to a wiper blade and coupled to a wiper arm, includes: a wiper connector attached to the wiper blade, the wiper connector comprising: a mounting portion having a pair of long sides and a pair a screw hole at both ends thereof; a pair of flat portions each extending from the pair of long sides of the mounting portion and being flattened to the mounting portion, wherein the width of the flat portion is equal to the width of the mounting portion And a pair of vertical plates each extending from the pair of flat portions and perpendicular to the mounting portion, wherein each of the vertical plates is outwardly formed with a shaft tube; and an adapter member is rotatably coupled to the wiper The connecting member is fixed to one end of the wiper arm, and the adapter comprises: a pair of pivoting pieces, each pivoting piece forms a pivoting hole, and the pair of shaft-shaped tubes of the wiper connecting piece are correspondingly sleeved on the Inside the pivot hole. The wiper connector assembly of claim 8, wherein the outer ends of the pair of pivoting sheets each form a guiding slope. The wiper connector assembly of claim 8, wherein the adapter has a top wall and a pair of side walls connected to the top wall, wherein the pair of pivoting sheets are disposed between the pair of side walls. The wiper connector assembly of claim 8, wherein the adapter comprises an adapter inner member and an adapter outer member, the adapter outer member having a through slot and a pair of sides thereof The outer connecting hole is fixed in the through slot, wherein the two side walls of the inner connecting member form a pivoting piece.