KR101766019B1 - Single wiper apparatus for vehicle - Google Patents

Abstract

The present invention is characterized in that a first arm connected to the driving means and rotating is connected to the first arm so as to transmit the power of the driving means and is provided with a blade for washing the windshield of the vehicle, A second arm which is hinged to the first arm so that the movement locus can be changed, and a second arm which is installed at a guide point of the second arm which is set apart from the engagement position of the first arm and the second arm, And a guide portion that is coupled to the roller portion by a rail and guides the rotation path of the guide point to set a cleaning range of the blade.

Description

[0001] The present invention relates to a single wiper apparatus for vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a single wiper apparatus for a vehicle, and more particularly, to a single wiper apparatus for a vehicle which can achieve weight reduction and cost reduction.

Generally, the windshield of the vehicle is equipped with a wiper to ensure visibility on rainy days or to remove foreign matter accumulated on the windshield.

Further, in the case of wiping the surface of the glass by operating the wiper, the washer liquid stored in the washer tank is sprayed to smooth the movement of the wiper blade, and thus the contaminants on the front glass can be cleanly removed.

In recent years, due to global oil price and carbon dioxide regulations, fuel efficiency improvement and eco-friendliness have become key items for vehicle development, and advanced car makers are concentrating on developing technologies for fuel reduction to achieve these goals.

For this purpose, it is essential for the vehicle wiper to reduce the weight by improving the structure in order to improve the fuel efficiency of the vehicle, and at the same time, the driver's view must be effectively secured.

Korean Registered Patent No. 10-0783579 (Dec. 3, 2007)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a single wiper device for a vehicle which can reduce the number of blades and reduce the weight of the wiper, and reduce the number of components required for manufacturing the wiper, thereby achieving cost reduction.

A single sweep wiper apparatus for a vehicle according to an embodiment of the present invention includes a first arm connected to a driving means and rotated and connected to the first arm so as to transmit power of the driving means, A second arm which is hinged to the first arm so that a movement locus of the first arm can be changed according to the rotation of the first arm and a second arm which is hinged to the first arm by being hinged to the first arm, And a guide unit installed at a guide point of the guide point and configured to rotate about the guide point and a guide unit that is coupled to the roller unit by a rail and guides a rotation path of the guide point to set a cleaning range of the blade .

Here, the roller portion may include a rotation protrusion provided on the guide point and a rotation protrusion, a receiving space formed therein, a protrusion protruded from the guide portion through the accommodation space, And has a roller body that moves along.

The guide portion is disposed opposite to the protruding member and disposed opposite to the protruding member. The protruding member is inserted into the accommodating space together with the protruding member to support both end portions of the roller body and guide the rotation path of the guide point do.

The roller unit may include a rotation protrusion provided on the guide point and a roller body coupled to the rotation protrusion and having a receiving space formed therein and a protruding member protruding from the guide unit being engaged in the receiving space do.

The roller body has an engaging member protruding from the upper and lower portions toward the protruding member, and the engaging member is bent in a '?' Shape so as to confine the protruding member so that one end faces each other.

At this time, the roller body further includes a ball bearing installed in the receiving space and reducing friction with the protruding member when moving along the longitudinal direction of the guide part.

The roller unit may include a rotation protrusion installed at the guide point and a first roller coupled to the rotation protrusion and surrounding the one side of the guide unit and rotating and moving away from the first roller, And a second roller rotating together with rotation of the first roller.

The driving means is installed at a lower side of the front glass of the vehicle.

The single wiper device for a vehicle according to another embodiment of the present invention may further include a first arm coupled to the driving means and coupled to the first arm for transmitting the power of the driving means, A second arm having a coupling protrusion protruding from a guide point spaced apart from a coupling position with the first arm and an insertion hole formed along the longitudinal direction to insert the coupling protrusion, And a guide portion for guiding the pivoting path of the guide point by causing the second arm to move along the longitudinal direction in a state where the projection is inserted.

The present invention has the effect of reducing the number of major components (link, motor, arm, blade) compared to the conventional one, reducing the number of parts required for manufacturing the wiper, and thus achieving cost reduction.

Further, the present invention can reduce the weight through simplification of the wiper structure, and as a result, it is possible to improve the fuel efficiency of the vehicle through weight reduction of the wiper.

1 is a schematic view showing a single wiper device for a vehicle according to a first embodiment of the present invention.
2 is an enlarged view of a guide part of a single wiper device for a vehicle according to a first embodiment of the present invention.
3 is a view showing the operation of the single wiper device for a vehicle according to the first embodiment of the present invention.
4 is a view showing a guide part of a single wiper device for a vehicle according to a second embodiment of the present invention.
5 is a view showing a guide part of a single wiper device for a vehicle according to a third embodiment of the present invention.
6 is a schematic view showing a single wiper device for a vehicle according to a fourth embodiment of the present invention.
7 is a view showing a combination of a second arm and a guide portion in a single wiper device for a vehicle according to a fifth embodiment of the present invention.

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

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving it will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

It should be understood, however, that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a schematic view showing a single wiper apparatus for a vehicle according to a first embodiment of the present invention. FIG. 2 is an enlarged view of a guide unit of a single wiper apparatus for a vehicle according to a first embodiment of the present invention. 1 is a view showing the operation of a single wiper device for a vehicle according to a first embodiment of the present invention.

1 and 2, a single wiper apparatus for a vehicle includes a first arm 10, a second arm 20, a roller portion 30, and a guide portion 40. The first arm 10, the second arm 20,

The first arm 10 is connected to the driving means 1 and rotates.

The first arm 10 and the drive means 1 are generally connected and are tightly coupled so that the torque of the motor provided on the drive means 1 can be transmitted to the first arm 10. [

It is preferable that the driving means 1 is installed on the lower side of the front glass 3 of the vehicle and is connected to the first arm 10, This is because, if it is located at the center, it may cause a sense of rejection to a cosmetic user.

The second arm 20 is connected to the first arm 10 so that the power of the driving means 1 is transmitted and a blade 2 for washing the windshield 3 of the vehicle is installed.

The second arm 20 and the blade 2 are connected to each other through a spring. Here, since the blade 2 is a general wiper structure capable of transmitting a force to a curved surface by a spring, a detailed description thereof will be omitted.

The second arm 20 is hinged to the first arm 10 so that the movement locus of the second arm 20 can be varied on the windshield 3 according to the rotation of the first arm 10. As a result, And a common joint structure.

The roller unit 30 is installed at a guide point P of the second arm 20 which is set apart from the engagement position of the first arm 10 and the second arm 20, .

This guide point P is a guide point P in which the sum of the lengths of the first arm 10 and the second arm 20 is on the farthest trajectory and the difference in length between the first arm 10 and the second arm 20 is The length of the first arm 10 and the length of the second arm 20 are set by measuring the distance between the first arm 10 and the second arm 20, As a result, the shape of the guide portion 40, which will be described later, can be formed through the locus line of the guide point P as a result.

The guide portion 40 is coupled to the roller portion 30 by a rail so as to guide the rotation path of the guide point P so that the cleaning range of the blade 2 is set.

3, the first arm 10 and the second arm 20 are formed so as to have a predetermined curvature in the same manner as the rotation path of the predetermined guide point P, The rotation of the roller portion 30 is supported so as to be able to rotate along the predetermined rotation path so that the rotation path of the guide point P formed on the second arm 20 can be maintained constant .

Therefore, in the present embodiment, a guide point P for setting the entirety of the front glass 3 of the vehicle in a state where the first arm 10 and the second arm 20 are jointly connected is set beforehand, The first arm 10 and the second arm 20 forming one wiper are rotated along the same locus by supporting the rotation path of the guide point P through the window 40 so that the windshield 3 ) To be cleaned.

Accordingly, the single wiper device for a vehicle according to the present embodiment can reduce the number of components (links, motors, arms, blades) compared to the conventional one, thereby reducing the number of components required for manufacturing a wiper.

In addition, the single wiper apparatus for a vehicle according to the present embodiment can reduce the weight by simplifying the wiper structure, and consequently, the fuel consumption of the vehicle can be improved by reducing the weight of the wiper.

Meanwhile, the roller unit 30 according to the present embodiment includes a rotation projection 32 and a roller body 34. [

The rotation projection 32 is provided at the lower portion of the guide point P as a rotation axis.

The roller body 34 is coupled to the rotation protrusion 32 and has a receiving space (not shown) formed therein. The roller body 34 surrounds the protruding member 40a protruded from the guide portion 40 through a receiving space (not shown) And moves along the longitudinal direction of the guide portion 40.

That is, the roller body 34 is inserted into the protruding member 40a in a state of being coupled to the rotation protrusion 32 and is rail-coupled with the guide unit 40. When the driving unit 1 is driven, The second arm 20 moves along the longitudinal direction of the guide portion 40 by the rotation of the second arm 20. [

4 is a view showing a guide unit of a single wiper apparatus for a vehicle according to a second embodiment of the present invention.

As shown in Fig. 4, the single wiper apparatus for a vehicle includes a guide portion 40 that is rail-coupled with the roller portion 30. As shown in Fig.

The guide portion 40 is provided with a departure prevention guide 42.

The departure prevention guide 42 is spaced apart from the protruding member 40a protruding from the guide portion 40 and disposed facing each other.

The departure prevention guide 42 is inserted into a receiving space A formed inside the roller body 34 and supports both ends of the roller body 34 together with the protruding member 40a.

As a result, the departure-avoiding guide 42 guides the rotation path of the guide point P, thereby preventing the roller body 34 from being separated from the guide portion 40 in advance.

In other words, the vehicle single wiper according to the present embodiment allows the roller body 34 to move along the pivoting path in a state where the roller body 34 is engaged with the projecting member 40a and the departure-avoiding guide 42, It is possible to prevent the guide part 40 from being separated from the guide part 40 and to keep the rotation path of the guide point P constant.

5 is a view showing a guide unit of a single wiper apparatus for a vehicle according to a third embodiment of the present invention.

As shown in FIG. 5, the single wiper apparatus for a vehicle includes a roller portion 30 which is provided so as to rotate axially at a guide point P of the second arm 20. As shown in FIG.

The roller portion 30 includes a rotation protrusion 32 and a roller body 34.

The rotation projection 32 is provided at the guide point P as a rotation axis.

The roller body 34 is coupled to the rotation protrusion 32 so that the receiving space A is formed therein and the protruding member 40a protruded from the guide portion 40 is latched in the receiving space A do.

That is, the roller body 34 has an engaging member 34a protruding from the upper and lower portions toward the protruding member 40a. The engaging member 34a has a bent one end portion in an ' So as to restrain the projecting member 40a.

In other words, the roller body 34 restrains the upper and lower portions of the projecting member 40a of the "ㅓ" shape located in the receiving space A through the pair of the engaging members 34a, So that the guide member 40 can be moved along the pivot path in a state where the guide member 40 is coupled to the rail.

Here, the roller body 34 may further include a ball bearing 36.

The ball bearing 36 is installed inside the accommodation space A and can reduce the friction of the projecting member 40a when the roller body 34 along the longitudinal direction of the guide portion 40 moves.

More specifically, a plurality of ball bearings 36 are disposed on one side of the accommodating space A facing the protruding member 40a. In a state where the engaging member 34a is engaged with the protruding member 40a When the roller body 34 moves along the longitudinal direction of the guide portion 40, the friction is minimized by the rotation so that the roller body 34 can be easily moved.

6 is a schematic view illustrating a single wiper device for a vehicle according to a fourth embodiment of the present invention.

6, the single wiper device for a vehicle is provided with a roller portion (not shown) provided at a guide point P of the second arm 20 which is set apart from the engagement position of the first arm 10 and the second arm 20, (30).

Here, the roller portion 30 has a rotation projection 32, a first roller 37, and a second roller 38. [

The rotation projection 32 is provided at the guide point P as a rotation axis.

The first roller 37 is engaged with the rotation protrusion 37 and rotatably moves around one side of the guide portion 40.

The second roller 38 is spaced apart from the first roller 37 by the thickness of the guide portion 40 and rotatably moves around the other side surface of the guide portion 40.

The second roller 38 rotates together with the rotation of the first roller 37 and is formed integrally with the first roller 37 by a separate frame 39.

As a result, in this embodiment, since the guide point P can move along the pivotal path while the first roller 37 and the second roller 38 are wrapping one side surface and the other side surface of the guide portion 40 , It is possible to prevent the roller portion (30) from being detached from the guide portion (40), and to easily guide the rotation path of the guide point (P).

FIG. 7 is a view showing the combination of the second arm and the guide portion in the single wiper device for a vehicle according to the fifth embodiment of the present invention.

7, the single wiper apparatus for a vehicle includes a first arm 100, a second arm 200, and a guide unit 300. As shown in FIG.

The detailed description of the coupling relationship between the first arm 100 and the second arm 200 and the setting of the guide point P of the second arm 200 has been described in detail with reference to FIGS. 1 to 3. Therefore, .

The coupling protrusion 200a protrudes from the second arm 200 at a guide point P spaced apart from the coupling position with the first arm 100.

Here, the guide part 300 is formed with an insertion hole H along the longitudinal direction so that the coupling protrusion 200a is inserted, and the coupling protrusion 200a is inserted into the insertion hole H, To move along the longitudinal direction to guide the rotation path of the guide point (P).

As a result, the single wiper device for a vehicle according to the present embodiment is configured such that the insertion hole H is inserted into the second arm 200 (not shown) without a separate roller portion (not shown) for keeping the rotation path of the guide point P constant, The pivoting path of the guide point P can be maintained at a constant level by effectively acting as a rail with respect to the engaging projection 200a.

In the present embodiment, the coupling protrusion 200a protrudes downward from the second arm 200. However, the coupling protrusion 200a may protrude upward according to the position of the guide portion 300, for example.

Although the second arm 200 of the present embodiment is illustrated as having the coupling protrusion 200a protruded, a coupling hole (not shown) may be provided at the position of the guide point P, (Not shown) may be moved along the pivoting path while being placed on the upper portion of the guide portion 300. [

The present invention has the effect of reducing the number of major components (link, motor, arm, blade) compared to the conventional one, reducing the number of parts required for manufacturing the wiper, and thus achieving cost reduction.

Further, the present invention can reduce the weight through simplification of the wiper structure, and as a result, it is possible to improve the fuel efficiency of the vehicle through weight reduction of the wiper.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many modifications may be made thereto, It will be understood that all or some of the elements (s) may be optionally constructed in combination. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: drive means 2: blade
3: windshield 10, 100: first arm
20, 200: second arm 30: roller portion
32: rotation projection 34: roller body
34a: engaging member 36: ball bearing
37: first roller 38: second roller
39: frame 40, 300:
40a: projecting member 42: departure-avoiding guide
200a: coupling projection A: accommodation space
H: Insertion hole P: Guide point

Claims (9)

A first arm connected to the driving means installed at one side of the lower portion of the windshield of the vehicle and rotating;
The first arm is connected to the first arm so as to transmit the power of the driving unit. A blade for washing the front glass is installed. The first arm is hinge-coupled to the first arm so that the movement locus can be changed according to the rotation of the first arm. The second arm being the second arm;
And a roller unit installed at a guide point of the second arm that is spaced apart from a coupling position of the first arm and the second arm and adapted to rotate on the guide point to provide a supporting force corresponding to the movement of the second arm, ; And
And a guide unit coupled to the roller unit at a lower side of the front glass and guiding a rotation path of the guide point to set a cleaning range of the blade.
The method according to claim 1,
The roller unit
A rotation protrusion installed at the guide point; And
And a roller body coupled to the rotation protrusion and having a receiving space formed therein and surrounding the protruding member protruding from the guide portion through the receiving space and moving along the longitudinal direction of the guide portion. Single wiper device.
The method of claim 2,
The guide portion
And a separation preventing guide which is disposed to face each other and is spaced apart from the protruding member and which is inserted into the receiving space together with the protruding member to support both end portions of the roller body and guide the rotating path of the guide point Single wiper device for vehicles.
The method according to claim 1,
The roller unit
A rotation protrusion installed at the guide point; And
And a roller body coupled to the rotation protrusion and having a receiving space formed therein, the protruding member protruding from the guide portion being engaged in the receiving space.
The method of claim 4,
The roller body includes:
And an engaging member protruding from the upper and lower portions toward the protruding member,
Wherein the latching member is bent in an " a " shape so that one end thereof faces each other, thereby restraining the projecting member.
The method of claim 4,
The roller body includes:
Further comprising a ball bearing installed in the accommodating space and reducing friction with the protruding member when the guide unit is moved along the longitudinal direction of the guide unit.
The method according to claim 1,
The roller unit
A rotation protrusion installed at the guide point; And
A first roller coupled to the rotation protrusion and rotating and moving around one side of the guide portion; And
And a second roller which is spaced apart from the first roller and rotates while wrapping around the other side surface of the guide portion and rotates together with the rotation of the first roller.
delete A first arm connected to the driving means installed at one side of the lower portion of the windshield of the vehicle and rotating;
A coupling protrusion protruding from a guide point spaced apart from a coupling position of the first arm and protruding from the first protrusion, the first protrusion being connected to the first arm to transmit power of the driving unit, A second arm for providing a bearing force according to the second arm; And
An insertion hole is formed along the longitudinal direction so that the coupling protrusion is inserted from a lower side of the front glass and the second arm is moved along the longitudinal direction in a state where the coupling protrusion is inserted into the insertion hole, And a guiding portion for guiding a turning path of the wiper device.

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