KR200159911Y1 - Wiper for a car - Google Patents

Abstract

The present invention provides a vehicle wiper device for storing the wiper blades (61, 62) to the engine hood so that the wiper blades (61, 62) are not exposed to the outside by only changing the flow length of the link (31) without changing the rotational direction of the wiper motor (1). have.

To this end, the present invention supports a rotary plate 2 having a curved long hole 5 formed on one side so as to slip on the output shaft 1a of the wiper motor 1, and onto the output shaft 1a on which the rotary plate 2 is fitted. The crank arm 3 is fitted to rotate under the drive of the wiper motor 1. Then, a ball pin 6 eccentrically moved in the curved slot 5 of the rotating plate 2 is inserted, and the ball pin 6 and the crank arm 3 are connected by the linkage arm 4 so that the crank arm (3) and the rotating plate (2) is rotated together, while a spring (7) for providing elasticity between the crank arm (3) and the linkage arm (4) is provided to restore the restoring force when storing the wiper blades (61, 62) Will be provided. In addition, a stopper 8 hinged at one end is fixed to the bottom of the rotating plate 2 to fix the ball pin 6, and the stopper 8 is freely attached to the lower body frame (not shown) of the stopper 8. A stopper release pin 9 is mounted to pull the end downward to release the fixing.

Description

Car Wiper Device

In general, a vehicle is equipped with a wiper device in front of the wand, which secures the driver's driving clock and helps to drive safely. This wiper device is used when rain or snow hits the wand while driving. Wiper blades are used to wipe the rain or snow to keep the driver's watch visible.

On the other hand, since the wiper blade is usually exposed to the upper portion of the windshield lower engine hood, the wiper blade has a problem in that the appearance may be degraded and may cover the driving field of the driver.

In recent years, high-end models have been proposed and equipped with a wiper device that prevents the wiper blade from being immersed into the engine hood and exposed to the outside by using the reverse rotation of the wiper motor and the change in the flow length of the link. Shown schematically in 3 degrees.

That is, if the wiper motor (l) rotates forward. The links 31 and 32 sequentially connected to the motor driving arm 21 are cranked, so that the pair of Pivot levers 41 and 42 connected to the above-mentioned two links 31 and 32 are the wiper arms 51. 52, the wiper blades 61 and 62 reciprocate between the upper inversion position "A" and the lower inversion position "B" of the windshield 71.

Thereafter, when the wiper is stopped, the wiper motor 1 rotates in reverse, and the wiper blade is operated by the rotation control unit 11 interposed between the motor driving arm 21 and the first link 31. 61 and 62 are stored in the answer position "C" on the engine hood side.

Here, the rotation control unit 11 for allowing the wiper blades 61 and 62 to be received at a lower position than the lower inverted position “B”, the motor driving arm 21 having one end connected to the output shaft of the wiper motor 1. Is installed at the other end of

As shown in FIG. 4, the known conventional rotation control unit 11 will be described in more detail, with two cams 13 and 14 supported to be rotatable by a connecting pin 12 inwardly. The outer circumferential surfaces of the two cams 13 and 14 are engaged with the stopper member 15, and the eccentric methyl 16 eccentrically held on the edge pin 12 is covered with a retainer l7. The link 31 is integrally connected to the retainer 17.

In addition, between the singular eccentric metal 16 and the first cam 13 is connected to the stopper pin 18 so as to always rotate together, the friction spring 19 is wound around the outer circumference of the eccentric metal 16 The free end, which is the end, is in contact with the inner circumferential surface of the retainer 17.

According to this configuration, when the wiper motor 1 rotates forward, the first cam 13 fixed by the stopper member 15 and the eccentric metal 16 connected by the stopper pin 18 are fixedly integrated and rotated. Instead, only the retainer 17 is rotatable to interlock the link 31, so that the center of the eccentric metal 16 is centered on the output shaft of the wiper motor 1, and thus the connecting pin 12. Located on the outer side of the wiper blades, the reciprocating motion of the wiper blades 61 and 62 is made between the upper reverse denture “A” and the lower reverse position “B” of the windshield 71.

On the other hand, when the wiper motor 1 reversely reverses, the free end of the friction spring 19 is engaged with the inner circumferential surface of the retainer 17, and thus the first cam 13, the eccentric metal 16, and the retainer 17 ), The first cam 13 is released from the stopper member 15 from being fixed, and as a result, the eccentric metal 16 rotates the connecting pin 12 about its axis to further link (31). The wiper blades 61 and 62 are returned to the storage position " C "

However, the above-mentioned conventional wiper device must be designed so that the wiper motor 1 rotates in reverse, and of course, when the wiper motor 1 rotates to receive the wiper blades 61 and 62 toward the engine hood. Since one end of the wiper motor 1 rotates in reverse, the free end of the friction spring 19 is not immediately engaged with a specific part of the inner circumference of the retainer 17. Therefore, the wiper blades 61 and 62 are turned off while the wiper blades 61 and 62 are raised. When the stop signal is applied and the stop signal is applied, the wiper blades 61 and 62 move from the upper side of the windshield 7l to the upper reverse position "A"-the lower reverse position "B"-the upper reverse position "A"-the lower reverse position. "B"-Storage position "C" in order, stop once the operation stops, and if the wiper blades 61 and 62 turn off the operation switch during lowering, the lower reverse position "B"-the upper reverse position "A" -Lower reverse position "B"-Storage position "C" By stopping, there is a problem that the response to the operation switch-off operation is delayed.

An object of the present invention is to solve the conventional problems as described above, the vehicle wiper device to be stored toward the engine hood so that the wiper blade is not exposed to the outside using only the change in the flow length of the link without changing the rotation direction of the wiper motor. In providing.

In order to achieve the above object, the present invention has a rotary plate fitted to slip on an output shaft of a wiper motor, and a crank arm driven by the wiper motor to be inserted above the rotary plate. And, on one side of the rotating plate is formed a curved hole eccentrically to the output shaft is inserted into the ball pin is connected to the link in the curved hole, the ball pin and the crank arm is connected to the linkage arm, the rotating plate and the crank arm is interlocked, the crank A spring is provided between the arm and the interlocking arm, and a stopper is attached to the bottom surface of the rotating plate so that only one end is fixed to be pivoted up and down, and a stripper hedge pin is mounted on the lower body body frame of the stopper. It becomes the structure that becomes.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail the configuration and the effect.

1 is a schematic configuration diagram of a crank arm and a rotating plate according to the present invention

2 is an exemplary view of a rotating plate formed with a curved hole according to the present invention

3 is a schematic configuration diagram of a conventional wiper device

4 is a cross-sectional view of a conventional rotation control device.

* Explanation of symbols for main parts of the drawings

1: wiper motor 1a: output shaft

2: rotating plate 3: crank arm

4: interlocking arm 5: curved long hole

6: ball pin 7: spring

8: stopper 9: stopper release pin

11: rotation control unit 12: connection pin

13, 14: first cam and second cam 15: spur member

16: Eccentric Metal 17: Retainer

18: stopper pin 19: friction spring

21: motor drive arm 31, 32: link

41, 42: Pivotor 51, 52: Wiper arm

61, 62: wiper blade 71: windshield

a, b: outside and inside of the curved hole

1 is a schematic configuration diagram of a crank arm and a rotating plate according to the present invention, and FIG. 2 is an exemplary view of a talker plate having a curved hole according to the present invention, the same site referred to in the prior art drawings for explaining the present invention. For reference, reference numerals will be described according to the conventional drawings, and detailed description thereof will be omitted.

A rotating plate 2 having a curved long hole 5 formed on one side is slip-fitted to the output shaft 1a of the wiper motor 1, and the rotating plate 2 is inserted into the crank arm 3 above the output shaft 1a. It is inserted and rotated under the drive of the wiper motor 1. Then, a ball pin (6) moving eccentrically in the curved slot (5) of the rotating plate (2) is inserted, the ball pin (6) and the crank arm (3) by the linkage arm (4). The crank arm 3 and the rotating plate 2 rotate together by being connected to each other, while a sprun 7 is provided to provide elasticity between the crank arm 3 and the linkage arm 4. In addition, the stopper 8 is attached to the bottom surface of the rotating plate 2 so that only one end is fixed and fixed, and the stopper release pin 9 is mounted on the lower cock body frame (not shown) of the stopper 8. have

In the above configuration, the curved hole 5 formed on one side of the rotating plate 2 is an eccentric curve having an inclination eccentric to the rotation axis, and the eccentric curve length accommodates the wiper blades 61 and 62 toward the engine hood. Provide a foundation to do so.

That is, the ball 31 of the link 31 is moved along the curved hole 5 so that the length of the link 31 is changed. In the initial state in which the wiper blades 61 and 6 are housed, (6) is located on the outer side (a) of the curved hole (5), and the wiper blades 61 and 62 reciprocate from the lower reverse position "B" to the upper reverse position "A" of the windshield 71. When the ball pin 6 is located on the inner side (b) of the curved hole (5).

In addition, the crank arm (3) receiving the driving torque when the wiper motor (1) is driven when the elastic force of the spring (7) provided between the crank arm (3) and the linking arm (4) is smaller than the driving torque of the wiper motor (1) The ball pin 6 moves (inwardly) in the curved slot 5 while being pushed between the linkage arms 4 by the spring, and the crank arm 3 and the spring 7 elastic force when the wiper motor 1 is stopped. As the linkage arm 4 is unfolded, the ball pin 6 moves to the outside of the curved slot 5 to accommodate the wiper blades 61 and 62.

At this time, the fixed limit of the movement of the ball pin (6) is a stopper (8), the stopper (8) is a hinge fixed only one side so as to rotate only in the downward direction from the bottom of the rotating plate (2) to the horizontal When the other free end is pulled downward, the ball pin 6 moving passage (curve hole) of the curved hole 5 is opened.

In addition, the stopper release pin 9, which is a device for canceling the stopper 8, moves up and down and is capable of holding the free end of the stopper 8 so that the end is bent, and the stopper 8 is automatically controlled. It is connected to an electronic controller (not shown) so that it can operate under the control of the electronic controller as necessary.

On the other hand, the ball pin 6 inserted into the curved hole 5 of the rotating plate 2 is connected to the link 31 for interlocking the Pivot lever 4l as in the prior art, so that the crank arm 3 and the rotating plate 2 As the link 31 performs the crank movement along the rotation, the wiper blades 61 and 62 may reciprocate by interlocking the pivot pivot 41.

Referring to the operation of the present invention configured as described above are as follows.

If the wiper blade 61.62 is stored in the storage position "C" and the operation signal is applied, the drive torque of the wiper motor 1 is rotated as the wiper motor 1 rotates the operation crank arm 3. By the ball pin 6 is moved from the outer (a) to the inner (b) of the curved hole 5, the wiper blades (61, 62) is moved to the position in the lower reverse position "B", Then, the bluff 6 is rotated along the crank arm 3 while being fixed by the stopper 8, and the link 31, the pivot beams 41 and 42, and the wiper arms 51 and 52 interlock with each other. The wiper blades 61 and 62 are then reciprocated at the usual wiping angle.

When the driver turns off the operation switch and a regular signal is applied, the wiper motor 1 is fixed so that the stopper 8 attached to the bottom of the rotating plate 2 is positioned directly above the stopper release pin 9. After turning to the point (stop position), the motor stops. At this time, the wiper blades 61 and 62 are positioned at the lower reverse position "B".

When the wiper motor 1 stops at the stop position as described above, the stopper release pin 9 under the control of the electronic controller moves upward to pull the free end of the stopper 8 downward, As the stopper 8 fixed to the ball pin 6 is removed and the ball pin 6 is released, the crank arm 3 is released by the spring force 7 between the crank arm 3 and the linkage arm 4. ) And the linkage arm 4 are unfolded so that the ball pin 6 moves from the inner side b of the curved slot 5 to the outer side a so that the wiper blades 61 and 62 are returned to the initial storage position "C". do.

As described above, according to the present invention, a curved hole is formed in the rotating plate to allow the ball pin to flow, and the crank arm driven by the wiper motor and the rotating plate can be rotated together so that the link of the wiper motor does not change the rotation direction. By changing the flow length of the wiper blade so that the wiper blade is not exposed to the outside, the responsiveness to the operation switch-off operation is always maintained, as well as its simple structure and easy assembly and low production cost. It can be applied to general Höhing vehicles.

The present invention relates to a vehicle wiper device, and in particular, by using only the change in the flow length of the link without changing the rotational direction of the wiper motor is to be stored toward the engine hood so that the wiper blade is not exposed to the outside.

Claims (3)

In the wiper device configured to receive the wiper blades 61 and 62 toward the engine hood so that the wiper blades 61 and 62 are not exposed to the outside by changing the flow length of the link 31 without changing the rotational direction of the wiper motor 1, the wiper motor ( The rotating plate 2 formed with the curved slot 5 is slipped on the output shaft 1a of 1), and the crank arm 3 driven by the wiper motor 1 is inserted above the rotating plate 2, The ball pin 6 is connected to the link 31 in the curved slot 5 of the rotating plate 2, and the ball pin 6 and the crank arm 3 are connected to the linkage arm 4. A spring 7 is provided between the crank arm 3 and the linkage arm 4 to provide elasticity, and the stopper 8 is hinged to one side only so that it can be rotated up and down on the bottom surface of the rotating plate 2. Is attached, the stopper release pin (9) is mounted on the lower body frame of the stopper (8) Vehicle wiper apparatus as The method of claim 1, wherein the elastic force of the spring (7) is less than the drive torque of the wiper motor (1) is compressed at the time of driving the wiper motor (1), by the restoring force of the spring (7) when the wiper motor (1) is stopped A wiper device for a vehicle, wherein the wiper blades 61 and 62 are accommodated therein. 2. A vehicle wiper device according to claim 1, characterized in that the operation of said stopper release pin (9) is controlled by an electronic control device.