KR100777608B1 - Wiper - Google Patents

Abstract

The present invention relates to a wiper blade of a vehicle for securing the driver's view by removing rain and snow and other dirt on the windshield of the vehicle.

More specifically, the opening and closing tension bridge 5 and the insertion guide protrusion 8 are punched by punching the long hole 3 closed in the longitudinal center portion of the thin spring band and connected to one end of the long hole 3 to punch the cutting gap 4. ) Is to be molded.

Lifting the open / close tension bridge 5 opens the opening 9 and inserts the blade rubber 16 through the open opening 9 and releases the open / close tension bridge 5 to release the open / close tension bridge 5. In this way, the opening 9 is blocked, and as a result, the bridge cross-section 6 of the opening / closing tension bridge 5 prevents the detachment of the blade rubber 16. Worn blade rubber (16) can be replaced easily, the user can provide an easy, economical automotive wiper blade.

Wiper, wiper blade.

Description

Automotive Wiper Blades {WIPER}

1 is a perspective view of a wiper blade according to the present invention

2 is a perspective view of a rail spring according to the present invention

Figure 3 is a perspective view of a state in which the tension bridge socket is inserted into the open and close tension bridge, one side end of the rail spring in the present invention

Figure 4 is a perspective view showing a state in which the open and close tension bridge in the present invention Figure 3

5 is a perspective view showing a bottom portion of the tension bridge socket according to the present invention and at the same time a partial cutaway view

6 is a perspective view showing a state in which the open and close tension bridge is lifted in the present invention, before the tension bridge socket is inserted.

Fig. 7 is a side view showing the state in which the open / closed tension bridge is lifted to insert the blade rubber into the rail spring as an operation state diagram of the present invention.

<Explanation of symbols for main parts of drawing>

2.Rail spring 3.Long hole 4.Cutting clearance

5. Opening and closing tension bridge 6. Bridge cross section 7. Opening groove

8. Insertion guide protrusion 9. Opening 10. Clogging connection 11. Clogging recess

12.Tension bridge socket 13.Space 14.Socket protrusion

15. Slope stopper 16. Blade rubber 17. Clogged connection socket

18. Bridge joint

The present invention relates to a wiper blade of a vehicle for securing the driver's vision by removing rain, snow and other dirt on the windshield of the vehicle.

According to the present invention, the opening and closing type tension bridge 5 and the insertion guide protrusion 8 are punched by punching the long hole 3 closed in the longitudinal center portion of the thin spring band and connected to one end of the long hole 3 to punch the cutting gap 4. ) Is to be molded.

Lifting the open / close tension bridge 5 opens the opening 9 and inserts the blade rubber 16 through the open opening 9 and releases the open / close tension bridge 5 to release the open / close tension bridge 5. And the wiper blade for the vehicle, which is closed by the opening 9 and consequently the bridge cross section 6 of the open / close tension bridge 5 to prevent the blade rubber 16 from detaching.

The wiper blade using the conventional rail spring is a method of bending two rail springs separately and inserting them into the side grooves of the blade rubber 16, thereby increasing the number of assembly parts and precisely assembling and fixing the two rail spring intervals. As it is very difficult, it requires not only skilled workers and sophisticated dedicated equipment, but also a lot of assembly time and labor, and as a result, the cost of working process is very high.

Recently, wiper blades have been developed using rail springs, which are remarkably improved in existing wiper blades connected by a number of arched arms, but there are still many areas to improve work maneuver and function.

Integral rail springs, which complement the shortcomings of the detachable rail springs, have been recently developed. However, can the wiper blade be constructed with a simple structure? To maximize functionality in the structure and to make it easy for the user?

Therefore, the present invention is to solve the above problems, the object of the present invention is to punch the spring steel band in the primary press to the state of Figure 2 but the state of the rail spring (2) in a continuous process without cutting the band as a whole After the bending bend automatically cut the rail spring (2) is completed can be easily processed by an efficient two-step one-time continuous method.

Therefore, the purpose is to provide a wiper blade with cost competitiveness by simplifying the process and increasing productivity.

In addition, the separation of the blade rubber 16 inserted into the rail spring (2) is not fixed by the conventional socket, as shown in Figure 7 bridge cross-section of the open and close tension bridge (5) which is part of the rail spring (2) By fixing by (6), there is basically no need for a separate fixing socket and there is no fear of detachment of the blade rubber (16).

In addition, the completed rail spring (2) is integrally formed, and at the same time, the overall side view of the rail spring (2) is planar, and the rigid structure is very resistant to rotational and torsional moments, thereby enhancing the function of the wiper. There is this.

In addition, the opening of the opening (9) by the light lifting of the opening and closing tension bridge (5) and the worn rubber blade 16 is removable through the open opening (9) to provide a wiper blade that is economical and very easy to replace There is this.

In order to achieve the above object, the present invention is connected to one side of the long hole (3) and the long hole (3) of the longitudinal spring portion of a thin spring band of a predetermined length when punching the c-shaped cutting gap (4) long hole (3 ) And the cutting gap 4 are connected in a closed state in the spring band to form a coplanar space, and the above punching process results in the left and right rail springs 2 being formed by punching the long holes 3 and The insertion guide protrusion 8 and the opening / closing tension bridge 5 are formed by punching the cutting gap 4 of the cutting hole 4, and the long hole 3 is a groove into which the blade rubber 16 is inserted and seated, and the insertion guide protrusion 8 is Guides the insertion of the blade rubber 16 and the cutting gap 4 maintains a sufficient width between the opening and closing tension bridge 5 and the insertion guide projection 8 to prevent interference with the vertical movement of the opening and closing tension bridge 5. Do not.

delete

delete

In addition, by forming the opening groove 7 in the outer side of the opening 9 side to be coupled with the socket projection 14 in the tension bridge socket 12 to prevent the separation of the tension bridge socket 12 and the clogging connection 10 side The blockage recessed groove 11 formed on the outer side also prevents the blockage of the plugged connection socket 17 by combining with the socket protrusion 14 in the plugged connection socket 17.

Figure 2 is a planar state without irregularities on the side view in a state of punching a thin board-like spring band.

In this state, the rail spring 2 is completed by bending the whole rail spring 2 to the required curved surface in accordance with the curved surface of the automobile windshield.

On the other hand, the tension bridge socket 12 of the two sockets 12 and 17 inserted into both ends of the rail spring 2 is formed in the opening groove 7 formed at both ends of the opening and closing tension bridge 5 as shown in FIG. The socket protrusion 14 coupled to the protrusion protrudes on both sides so that the tension bridge socket 12 inserted into the opening / closing tension bridge 5 is not separated.

In addition, the upper portion of the tension bridge socket 12 has a lid, but the space 13 is formed so that the upper support portion of the blade rubber 16 can pass through, and the lower side of the socket 12 is a blade of the blade rubber 16 This part is left open to the width where it can pass.

Both bridge coupling portions 18 inside the tension bridge socket 12 are portions to which the open / close tension bridge 5 is inserted and coupled, and the width thereof is the same as the width of the open / close tension bridge 5, as shown in FIGS. 3 and 4. As described above, the cutting gap 4 is maintained as it is, so that the tension bridge socket 12 and the open / close tension bridge 5 do not come into contact with the insertion guide protrusion 8.

In addition, as shown in FIG. 5, an inclined surface having a predetermined angle is formed at one end of both bridge coupling portions 18 to form a slope-type stopper 15 to open / close the tension bridge 5 as shown in FIG. 7. Do not hear.

The plugged connection socket 17 is the same as the tension bridge socket 12 in its configuration but is fixed because there is no open / close tension bridge 5.

1 is a perspective view of a wiper blade according to the present invention, Figure 2 is a perspective view of a rail spring according to the present invention.

Figure 3 is a perspective view of a state in which the tension bridge socket is inserted into the opening and closing tension bridge that is one side end of the rail spring in the present invention, Figure 4 is a perspective view showing a state of lifting the opening and closing tension bridge in Figure 3 of the present invention and Figure 5 is the present invention Is a perspective view and a partial cutaway view showing the bottom of the tension bridge socket.

Figure 6 is a perspective view showing a state of lifting the open-type tension bridge in the present invention before the insertion of the tension bridge socket Figure 7 shows a state of lifting the open-type tension bridge in order to insert the blade rubber into the rail spring in the present invention Side cross section view.

Referring to the operation of the present invention as described above in detail.

As shown in FIG. 2, the rail springs 2 are formed, and then the curved springs are bent to fix the clip 1 at the center portion.

This clip can be combined with a U-shaped hook formed on the end of a conventional wiper arm.

Next, when the plugged connection socket 17 is inserted into the plugged connection 10, the socket projection 14 in the plugged connection socket 17 and the plugged groove 11 of the rail spring 2 are coupled to each other so that the plugged connection socket 17 ) Is fixed to the rail spring (2).

Then, when the tension bridge socket 12 is inserted into the open / close type tension bridge 5, the tension bridge socket 12 is fixedly coupled to the open / close type tension bridge 5 by the above principle.

Even after the tension bridge socket 12 is coupled to the open / close tension bridge 5, the cutting gap 4 is still maintained so that it does not come into contact with the insertion guide projection 8.

In the above configuration, the method of inserting the blade rubber 16 is as follows.

First, the tension bridge socket 12 and the open and close tension bridge (5) combination lightly lifted by the finger.

At this time, if the lift-type tension bridge 5 is excessively lifted and the deformation occurs beyond the yield point, the lifting angle is limited by the slope-type stopper 15 within the yield point as shown in FIG.

That is, as shown in FIG. 7, when the tension bridge socket 12 is lifted up to a certain angle, the four-sided topper 15 comes into contact with the rail spring 2 and is no longer lifted, and at the same time, the tension bridge socket 12 Since the tension bridge socket 12 is not pushed out by the locking action between the socket protrusion 14 and the opening recess 7, the angle is securely maintained.

The state in which the tension bridge socket 12 is lifted is illustrated in FIG. 4.

In the above state, the opening 9 is fully opened and the blade rubber 16 is inserted through the opening 9.

Inserted blade rubber 16 is inserted into the long hole (3) and continue inserting to reach the plugged connection 10, the other end of the blade rubber 16 stops at the end of the insertion guide projection (8).

When the tension bridge socket 12 is released in this state, the open / close tension bridge 5 is returned to its original position by elasticity.

Of course, at this time, as described above, the cutting gap 4 is still maintained, so that the opening / closing tension bridge 5 is returned to its original position by the elastic force and receives no resistance.

When the open / close tension bridge 5 is returned to its original position as shown in FIG. 7, the blade rubber 16 is prevented from being separated by the bridge cross section 6 of the open / close tension bridge 5 and the blade rubber 16 is removed. Insertion is complete.

On the other hand, the rail spring 2 configuration of FIG. 2 without both sockets 12 and 17 performs 100% of the functions.

That is, the tension bridge socket 12 serves as a stopper function and a finishing material to prevent the opening and closing tension bridge 5 from being excessively heard, and the plugging connection socket 17 functions only as a finishing material.

The worn blade rubber 16 can be replaced in the reverse order of fitting the blade rubber 16.

That is, lift the tension bridge socket (12) lightly until the slope-type stopper (15) touches the rail spring (2) to stop, remove the worn blade rubber (16), insert a new one, and then insert the tension bridge socket (12). When it is released, the tension bridge socket 12 is automatically restored by preventing the detachment of the blade rubber 16 while returning to its original shape.

In the present invention as described above, the rail spring (2) is a rigid structure very strong from deformation due to wiper vibration, torsion moment, rotation moment when using the wiper in one-piece relationship.

In addition, due to the one-piece manufacturing process is significantly reduced and easy handling during manufacturing, high productivity and low defect rate is economical.

The user can easily and easily replace the worn blade rubber 16 by simply lifting and placing the tension bridge socket 12 with a finger.

Since the blade rubber 16 inserted into the long hole 3 is prevented from being separated by the bridge cross section 6 integral with the rail spring 2, the blade rubber 16 is securely fixed and the sockets 12 and 17 are secured. Even if the departure of the blade rubber 16 is not released can be provided in any case the wiper blade for the vehicle does not occur emergency situation due to the departure of the blade rubber (16).

Claims (1)

A thin spring band of constant length is connected to one side of the long hole (3) and the long hole (3) in the longitudinal center portion to punch a c-shaped cutting gap (4). The long hole (3) and the cutting gap (4) are spring bands. It is connected in a closed state to form a coplanar space, and the above punching process is consequently formed by punching the long hole 3 to form the left and right rail springs 2 and punching the c-shaped cutting gap 4. The insertion guide protrusion 8 and the opening / closing tension bridge 5 are molded, and the long hole 3 is a groove into which the blade rubber 16 is inserted and seated, and the insertion guide protrusion 8 guides the insertion of the blade rubber 16. And the cutting gap 4 maintains a sufficient width between the opening / closing tension bridge 5 and the insertion guide projection 8 so that there is no interference in the vertical movement of the opening and closing tension bridge 5 and the opening and closing tension bridge 5. When the opening 9 is opened and released by lifting Automobile wiper blade, characterized in that the retractable tension bridge (5) to close the opening again to return to the elastic force.

Images