WO2012097490A1

WO2012097490A1 - Wiper arm joint of wiper

Info

Publication number: WO2012097490A1
Application number: PCT/CN2011/001633
Authority: WO
Inventors: 程宝来
Original assignee: Cheng Baolai
Priority date: 2011-01-20
Filing date: 2011-09-28
Publication date: 2012-07-26
Also published as: CN102114827B; CN102114827A

Abstract

Disclosed in the present invention is a wiper arm joint of a wiper, which comprises a wiper arm connection seat (1), a wiper connection seat (2), a latch (3) and a connection plug (4). The bottom of the wiper connection seat (2) is provided with a connection surface (21) for connecting a wiper (5), and the top of the wiper connection seat (2) is provided with a pivot (22). The wiper arm connection seat (1) has a centrally hollow frame structure. Two ends of the pivot (22) on the wiper connection seat (2) are inserted into shaft holes (12) on a side wall (11) in the wiper arm connection seat (1) individually, and the pivot (22) is inset into an embedded hole (31) of the latch (3). Compared with the prior art, the invention combines structural characteristics of wiper arms in various automobiles, so that the wiper arms in various automobiles can be matched with the joint. The invention has high universality, reduces the manufacturing complexity of the wiper and the whole manufacturing cost of automobile accessories.

Description

Wiper arm joint in wiper

Technical field

The present invention relates to the technical field of a wiper in an automobile, and more particularly to a wiper arm joint in a wiper for connecting a wiper arm and a wiper. Background technique

At present, the general-purpose wiper for automobiles includes a wiper arm, a wiper capable of scraping the windshield, and a wiper arm joint connecting the two. The wiper arm is generally made of a hard metal material, and the wiper generally includes a connection together. For the brackets and strips, the strips are generally made of soft materials such as rubber. However, the structure of the wiper arm used in each car is different from that of the installation. For example, the wiper arm of the GM has a long strip shape and has a barb at the end. When installed, the hook is hooked into the wiper arm joint. Limits, which can drive the wiper arm joint and the wiper under the joint; while Benz, Ford and Porsche use a generally L-shaped wiper arm. When installed, the transverse part is inserted. The wiper arm joints are snapped together in the corresponding mating positions; for example, the sagitar and sagitar wiper arms are different from the above, and the wiper arms of the BMW 5 Series and the wiper arms of the logo 307 are different. Therefore, the specific wiper arm needs to be equipped with a matching wiper arm joint to connect with it. The existing wiper arm joints are very weak in versatility, and the auto parts factory needs to separately create special wiper arm joints for various kinds. For specific car use, this will undoubtedly increase the processing complexity of the wiper and increase the manufacturing cost of the overall steam-car accessories. Currently, there is no universal wiper arm connector on the market. Summary of the invention

The technical problem to be solved by the present invention is to provide a wiper arm joint in a wiper according to the current state of the art, which is very versatile and can be applied to the wiper arm of most automobiles at present, and can reduce the manufacture of the wiper. Complexity.

The technical solution adopted by the present invention to solve the above technical problem is: a wiper arm joint in the wiper, characterized in that: a wiper arm connecting seat, a wiper connecting seat, a buckle and a front end fixed on the front end of the wiper arm connecting seat Connecting plugs, all of which have a bilaterally symmetrical structure;

Wherein, the bottom of the wiper connector has a connecting surface for connecting the wiper, and the top has a pivot;

The wiper arm connecting seat has a central hollow frame structure, and each of the left and right sides has a side wall, and a shaft hole is disposed in a middle portion of each side wall, and two ends of the pivot shaft of the wiper connecting seat are respectively inserted into the side walls In the shaft hole, each side wall is disposed at a front side of the shaft hole, and a first insertion hole is provided for the wiper arm, and a top surface of each side wall is provided with a groove for the wiper arm to be engaged, and each side wall The outer side is provided with a rib, the length direction of the rib and the length of the entire wiper arm connecting seat The direction of 2011/001633 is the same, and a bump is further disposed on the rear side of the rib, and the front side of the bump has an inclined surface;

The buckle is disposed at the center of the wiper arm connecting seat and has a rounded outer contour, and the front portion of the buckle has an Ω-shaped through hole with a transverse cross section, and the pivot of the wiper connector is embedded in the through hole Among

The front side of the connecting plug has a housing that can cover the end of the wiper arm, and the rear side has a connecting portion for connecting the wiper arm connecting seat.

As a further improvement, the rear side of the sidewall of the wiper arm connecting seat may further be provided with a second insertion hole for inserting the wiper arm, and the rear portion of the buckle corresponds to the second The position of the jack has a semi-circular hole with a transverse cross section, so that the wiper arm joint is suitable for other models of the car, and the scope of application is expanded.

In order to enhance the reliability of the connection between the side wall of the wiper arm connecting seat and the wiper arm, the wiper arm can more effectively move the wiper arm joint, and each side wall of the wiper arm connecting seat can include an inner side wall and The outer side wall, wherein the first insertion hole is disposed on the outer side wall, the shaft hole, the second insertion hole and the rib are disposed on the inner side wall, and the front end of the inner side wall is provided with a half hole adapted to the first insertion hole. In this way, the connecting shaft in the wiper arm can simultaneously pass through the half hole of the inner side wall and the first insertion hole on the outer side wall, thereby enhancing the connection fastness of the wiper arm and the wiper arm connecting seat.

Similarly, for the purpose of enhancing the reliability of the connection between the side wall and the wiper arm, a support wall may be disposed on the outer side of each side wall of the wiper arm connecting seat, and the top of each support wall has a semi-circular notch. The connecting shaft in the wiper arm passes through to strengthen the connection of the wiper arm to the wiper arm connecting seat.

The protrusions may be integrally formed on the side wall, but preferably, the rear side of each side wall of the wiper arm connecting seat has an extension portion, and the protrusion may be formed by the extension portion. The front side end portion is formed so that the lug has a certain room for internal and external movement, and is more suitable for the installation of the wiper arm of each model vehicle. As a further improvement, the center of the wiper arm connecting seat may be provided with an internally threaded peg for fixing the sagitar and sagitar wiper arm.

As a further improvement, the rear portion of the wiper arm connecting seat may further be provided with a fixing hole for fixing the wiper arm of the Renault automobile.

As a further improvement, the rear portion of the wiper arm connecting seat may be provided with an elastic buckle formed by the rear central portion of the wiper arm connecting seat extending upward and forward, and the end of the elastic buckle Slightly higher than the top of the side wall of the wiper arm connector, the elastic snap can be opposed to the inner side of the wiper arm, which makes the removal of the wiper arm more convenient.

Compared with the prior art, the invention combines the structural features of the wiper arm of each automobile, and the wiper arm of each automobile is designed by the structural design of the wiper arm connecting seat, the buckle and the connection part. It can be adapted to it, and the versatility is very strong. Thus, a wiper arm joint of the present invention can be applied to the wiper arm of most automobiles currently on the market, which reduces the complexity of the wiper manufacturing industry and reduces the accessories of the automobile. Overall manufacturing costs. DRAWINGS

FIG. 1 is a schematic structural view of a first embodiment of the present invention applied to a general-purpose vehicle.

Fig. 2 is a cross-sectional view of Fig. 1 (the wiper portion is omitted). Fig. 3 is an exploded perspective view showing a first embodiment of the present invention.

4 is a schematic structural view of a wiper arm connecting seat according to Embodiment 1 of the present invention.

FIG. 5 is a schematic structural view of a wiper arm applied to a magotan and a sagitar automobile according to an embodiment of the present invention.

Figure 6 is a cross-sectional view of Figure 5.

FIG. 7 is a schematic structural view of a wiper arm of a BMW 5 Series automobile according to an embodiment of the present invention.

Fig. 8 is a structural schematic view showing the application of the wiper arm of the 307 automobile of the embodiment of the present invention.

FIG. 9 is a schematic structural view of the embodiment of the present invention applied to a wiper arm of a Renault automobile.

FIG. 10 is a schematic structural view of a second embodiment of the present invention applied to a wiper arm of a Mercedes-Benz, Ford, and the like automobile.

FIG. 11 is a schematic structural view of a wiper arm connecting seat according to Embodiment 2 of the present invention. detailed description

The present invention will be further described in detail below with reference to the accompanying drawings.

Embodiment 1:

As shown in FIG. 1 to FIG. 4, the wiper arm joint of the present embodiment is a preferred embodiment of the present invention, which includes a wiper arm connector 1, a wiper connector 2, a latch 3 and a connector plug 4. The components of the wiper connector 2 have a connecting surface 21 for connecting the wiper 5 and a pivot 22 at the top. In actual installation, the connecting surface 21 of the wiper connector 2 can pass. The welding method is connected with the wiper 5;

The wiper arm connecting seat 1 has a central hollow frame structure, and the left and right sides respectively have side walls 11 , and each side wall 11 includes an inner side wall 11 a and an outer side wall lib which are staggered in front and rear positions, wherein each inner side wall 11 a is middle a shaft hole 12 is provided, and two ends of the upper pivot shaft 22 of the wiper connector 2 are respectively inserted into the shaft holes 12 of the side walls 11 so that the two are coupled to each other in a relatively rotatable manner;

A first insertion hole 13 for inserting the wiper arm is disposed on the front side of the shaft hole 12 on each of the outer side walls lib, and a second side for inserting the wiper arm is disposed on the rear side of the shaft hole 12 on the inner side wall 11a. The socket 14 and the second end of the inner side wall 11a are provided with a semi-hole 13a adapted to the first insertion hole 13;

At the same time, the top of each inner side wall 11a is provided with a groove 15 for the wiper arm to be engaged;

A convex strip 16 is disposed on the outer side of each inner side wall 11a under the second insertion hole 14, and the length direction of the convex strip 16 is consistent with the longitudinal direction of the entire wiper arm connecting seat 1;

The rear side of each of the inner side walls 11a of the wiper arm connecting seat 1 has an extending portion 17, and the front end portion of the extending portion 17 is formed with a convex portion 17a which is convex with respect to the inner side wall 11a, and the bump 17a The front side has an inclined surface 17b;

The rear portion of the wiper arm connecting seat 1 is further provided with a fixing hole 17c;

The center of the wiper arm connecting seat 1 is provided with a threaded post 18 with an internal thread, and a snap portion 19 extending toward the rear side is further disposed at the top of the core post 18;

The buckle 3 is disposed at the center of the wiper arm connecting seat 1 and has a rounded outer contour, and the front portion of the buckle 3 has a front portion The through hole 31 having an Ω-shaped cross section is transversely inserted, and the pivot 22 of the wiper connector 2 is embedded in the insertion hole 31 so that the buckle 3 can swing back and forth relative to the wiper connector 2 about the pivot 22 Restricted on the wiper connector 2, and the rear portion of the buckle 3 and the position corresponding to the second insertion hole 14 have a semi-circular hole 32 having a transverse cross section and can be inserted into the wiper. a wiper arm in the second insertion hole 14 of the arm connector 2;

The front side of the connecting plug 4 has a housing 41 that can cover the end of the wiper arm, and the rear side has a connecting portion 42 for connecting the wiper arm connecting seat 1, and the connecting plug 4 passes through the connecting portion through the screw 43. 42 is fastened to the front end of the wiper arm connector 1. As shown in FIG. 1 to FIG. 4, the structure of the embodiment is applied to a general-purpose vehicle, wherein the wiper arm 6 in the GM has an elongated shape, and the end has an undercut 61, and the size of the buckle 3 is The barbs 61 of the wiper arm 6 are matched. In actual assembly, the barbs 61 of the wiper arm 6 are hooked on the buckles 3 and the pivots 22 of the wiper connector 2, thereby realizing the wiper arm 6 and the wiper. Reliable connection of the arm joints. As shown in FIG. 5 and FIG. 6 , the structure of the wiper arm of the magotan and the sagitar automobile of the magotan and the sagitar automobile is shown in FIG. 5 and FIG. 6 , wherein the wiper arm 7 of the magotan and the sagitar automobile has a covered connection end and a wiper. The connecting end of the arm 7 is integrally covered by the inner side wall 11a of the wiper arm connecting seat 1, and the connecting end of the wiper arm 7 is provided with a fastening hole 71 which is fastened to the wiper arm connecting seat 1 by a screw 72. The corrugated arm 7 and the wiper arm joint are reliably connected to each other in the centering post 18 and in conjunction with a countersunk sleeve 73. As shown in FIG. 7 and FIG. 8 , the structure of the BMW 5 Series and the 307 automobile wiper arm is respectively applied to the embodiment, wherein the series and the connecting end of the wiper arm 8 of the Volvo model are respectively shown. The front end has a first insertion portion 81 protruding outwardly, and the bottom edge 83 of the wiper arm 8 further has a downward extending fin 84, and the middle portion of the connecting end of the wiper arm 8 of the BMW 5 series also has a downward extension. And flattening and bending the second insertion portion 82;

In actual installation, the connecting end of the wiper arm 8 is wrapped around the inner side wall 11a of the wiper arm connecting seat 1, and the first inserting portion 81 is inserted into the connecting plug 4 to be wrapped in the casing 41, rain The bottom edge 83 on both sides of the wiper arm 8 just abuts against the rib 16 of the wiper arm connecting seat 1, and the extending fins 84 on both sides of the wiper arm 8 are exactly limited to the inclined surface 17b of the bump 17a. Previously, the wiper arm 7 can drive the wiper arm joint to move reliably. The second insertion portion 82 of the wiper arm 8 of the BMW 5 Series extends below the buckle portion 19 at the center of the wiper arm connecting base 1 to snap the two together. As shown in FIG. 9, the structure of the embodiment is applied to a wiper arm of a Renault automobile, wherein the wiper arm 10 of the Renault automobile has an elongated shape, passes through a through hole of the wiper arm 10 through a screw, and The wiper arm connects the fixing hole 17c at the rear of the seat 1 to achieve a reliable connection of the wiper arm 10 to the wiper arm joint. Embodiment 2 - As shown in FIG. 10 and FIG. 11 , the difference between the second embodiment and the first embodiment is that: a support wall 11c is further disposed on the outer side of each side wall 11 of the wiper arm connecting base 1 . The top of the wall 11c has a semi-circular notch 11. The rear portion of the wiper arm connecting seat 1 is provided with an elastic buckle 17d which is extended upward and forward by the rear center of the wiper arm connecting seat 1. And formed, and the end of the elastic snap 17d is slightly higher than the top of the side wall 11 of the wiper arm connector 1.

The second embodiment of the present invention is most suitable for use in Mercedes-Benz, Ford, and Porsche cars. The connecting ends of the automobile wiper arms 9 have a snap portion 91 and a connecting shaft 92. When actually installed, the connecting shaft 92 passes through the rain. The first insertion hole 13 of the arm connecting bracket 1 is disposed within the semicircular notch l id of the support wall 11c, and the engaging portion 91 is directly engaged with the concave portion at the top of the side wall 11 of the wiper arm connecting seat 1. Within the slot 15.

Claims

Rights request

A wiper arm joint in a wiper, comprising: a wiper arm joint (1), a wiper joint (2), a lock (3) and a front end fixed to the wiper arm joint (1) The upper connecting plug (4), these four components have a bilaterally symmetrical structure;

Wherein, the bottom of the wiper connector (2) has a connecting surface (21) for connecting the wiper (5), and the top has a pivot

(twenty two);

The wiper arm connecting seat (1) has a central hollow frame structure, and has left side walls (11) on each of the left and right sides, and a shaft hole (12) is arranged in a middle portion of each side wall (11), and the wiper connecting seat ( 2) Both ends of the upper pivot (22) are respectively inserted into the shaft holes (12) on the side walls (11), and the side walls (11) are provided on the front side of the shaft holes (12) with the wiper arm a first insertion hole (13), a top surface of each side wall (11) is provided with a groove (15) for the wiper arm to be engaged, and a convex strip is arranged on the outer side of each side wall (11). The longitudinal direction of the rib (16) coincides with the length direction of the entire wiper arm connecting seat (1), and a bump (17a) is further disposed on the rear side of the rib (16), the bump (17a) The front side has an inclined surface (17b);

The buckle (3) is disposed at the center of the wiper arm connecting seat (1) and has a rounded outer contour, and the front portion of the buckle (3) has a through hole (31) having an Ω-shaped cross section through the transverse direction. a pivot (22) of the wiper connector (2) is embedded in the insertion hole (31);

The front side of the connecting plug (4) has a housing (41) capable of covering the end of the wiper arm, and the rear side has a connecting portion (42) for connecting the wiper arm connecting seat (1).

2. A wiper arm joint in a wiper according to claim 1, wherein: a side wall (11) of the wiper arm connecting seat (1) is disposed on a rear side of the shaft hole (12). a second insertion hole (14) for the wiper arm, and a rear portion of the lock (3) and a position corresponding to the second insertion hole (14) have a semi-circular hole with a transverse cross section (32).

3. Wiper arm joint in a wiper according to claim 2, characterized in that each side wall (11) of the wiper arm connecting seat (1) comprises an inner side wall (11a) and an outer side wall ( Lib), wherein the first jack (13) is disposed on the outer side wall (lib), the shaft hole (12), the second jack (14), and the rib (16) are disposed on the inner side wall (11a), and The front end of the inner side wall (11a) is provided with a half hole (13a) adapted to the first insertion hole (13).

4. A wiper arm joint in a wiper according to claim 2, wherein: a support wall (llc) is further disposed on an outer portion of each side wall (11) of the wiper arm connecting seat (1), The top of the support wall (11c) has a semi-circular notch

The wiper arm joint in the wiper according to claim 1, characterized in that: the rear side of each side wall (11) of the wiper arm connecting seat (1) has an extension (17) The bump (17a) is formed by the front end of the extension (17).

6. A wiper arm joint in a wiper according to claim 1, characterized in that: the center of the wiper arm connecting seat (1) is provided with a threaded post (18).

A wiper arm joint in a wiper according to claim 1, characterized in that: the rear portion of the wiper arm connecting seat (1) is further provided with a fixing hole (17c).

The wiper arm joint in the wiper according to any one of claims 1 to 7, characterized in that: the rear part of the wiper arm connecting seat (1) is provided with an elastic buckle (17d), The elastic buckle (17d) is formed by extending the center of the rear portion of the wiper arm connecting seat (1) upward and forward, and the end of the elastic snap (17d) is slightly higher than the wiper arm connecting seat (1) The top of the side wall (11).