KR20180109784A - A Wiper Blade Assembly - Google Patents

Abstract

The present invention relates to a wiper blade assembly including: a close contact member; and an elastic member supporting the close contact member. The elastic member includes a body portion and a central portion positioned in the central region of the body portion. The body portion includes a first body portion extending in a first direction from the central portion; a first end portion positioned at an end of the first body portion; a second body portion extending in a second direction from the central portion; and a second end portion positioned at an end of the second body portion. Included are a first point positioned between the central portion and the first end portion and a second point positioned between the central portion and the second end portion. A first pressing pressure has a uniform distribution from the first point to the second point. The pressing pressure from the first point to the first end portion increases as compared with the first pressing pressure. The pressing pressure from the second point to the second end portion increases as compared with the first pressing pressure. The wiper blade assembly can be provided that is capable of controlling elastic member pressing pressure and close contact member close contact force distributions.

Description

A Wiper Blade Assembly < RTI ID = 0.0 >

The present invention relates to a wiper blade assembly, and more particularly, to a wiper blade assembly capable of controlling distribution of an elastic member pressing pressure and distribution of an urging force of an urging member.

A windshield of the vehicle is provided with a wiper blade assembly for wiping off rainwater or removing foreign matter during a rainy period to secure a driver's view. The wiper blade assembly is connected to and driven by a wiper arm connected to a drive shaft connected to a vehicle-side wiper drive motor.

At this time, the wiper arm and the wiper blade assembly are coupled through a wiper connector. Generally, a wiper blade assembly is provided with a member called a clamp, a connector member is fastened to the clamp, and in a state where the connector member is fastened to the clamp, And is fastened to the connector member.

Meanwhile, the type of the wiper blade assembly can be classified into a conventional type and a flat type according to the structure of the blade.

A general wiper blade assembly includes a contact member for removing foreign matter adhered to a window, an elastic member for supporting the contact member, and a cover member for covering the elastic member and extending in the longitudinal direction of the elastic member.

Further, a general wiper blade assembly includes a coupling cover that engages with the elastic member, and the coupling cover can include a structure that can be fastened to the adapter.

At this time, as described above, in the case of a general wiper blade assembly, the wiper arm is fastened to the connector member of the wiper blade assembly, and the wiper blade assembly can perform the wiping action by the driving force of the wiper arm.

In this case, the wiper arm presses the wiper blade assembly with a predetermined pressing force, and the wiper blade assembly is brought into close contact with the windshield of the vehicle by the pressing force.

That is, in order to improve the wiping characteristics of the wiper blade assembly, the adhesion characteristics between the wiper blade assembly and the windshield of the vehicle must be excellent. For this purpose, the distribution of the pressing pressure applied to the elastic member of the wiper blade assembly It is important to control.

Korea Patent No. 1201547

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wiper blade assembly capable of controlling distribution of an elastic member pressing pressure and distribution of a contact force of a contact member.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to solve the above-mentioned problems, the present invention provides a pressure- And an elastic member for supporting the contact member, wherein the elastic member includes a body portion and a central portion positioned in a central region of the body portion, the body portion having a first body portion extending from the center portion in a first direction; A first end located at an end of the first body part; A second body extending from the center in a second direction; And a second end located at an end of the second body portion, the first end located between the central portion and the first end and the second end located between the central portion and the second end Wherein a first pressing pressure is uniformly distributed from the first point to the second point and a pressing pressure from the first point to the first end is higher than the first pressing pressure, And the pressing pressure to the second end portion is higher than the first pressing pressure.

Further, the present invention is characterized in that the first point is any one of 1/3 point to 3/4 point of the first body part with respect to the center part, and the second point is a point, Wherein the first and second body portions are located at any one of a 1/3 to a 3/4 point of the second body portion.

The present invention also provides a wiper blade assembly wherein the first point and the second point are mutually symmetrical with respect to the center.

The present invention also provides a wiper blade assembly in which the first pressing pressure is uniformly distributed, wherein a change in pressing pressure occurs within an error range of 占 .5 gf / cm from the constant constant.

Further, the present invention is characterized in that the pressing pressure from the first point to the first end is higher than the first pressing pressure, and that the pressing pressure from the second point to the second end is higher than the first pressing pressure The maximum value of the pressing pressure from the first point to the first end and the pressing pressure from the second point to the second end is in the range of +4 to +6 gf / cm The wiper blade assembly comprising: a wiper blade assembly;

According to the present invention as described above, it is possible to provide a wiper blade assembly capable of controlling the distribution of the pressing force of the elastic member and the distribution of the contact force of the contact member.

Further, in the present invention, by controlling the distribution of the pushing pressure applied to the elastic member and controlling the contact force of the close contact member which is in close contact with the wind of the vehicle through the distribution control of the pushing pressure of the elastic member, The wiping characteristic of the wiper blade assembly can be improved.

FIG. 1 is an assembled perspective view illustrating a wiper blade assembly according to the present invention, and FIG. 2 is an exploded perspective view illustrating a wiper blade assembly according to the present invention.
FIG. 3A is a perspective view showing an elastic member according to the present invention, and FIG. 3B is a plan view showing an elastic member according to the present invention.
4A is a perspective view showing a contact member according to the present invention, and FIG. 4B is a plan view showing a contact member according to the present invention.
Fig. 5 is a schematic view for explaining the curvature of a general elastic member, and Fig. 6 is a diagram showing a change in curvature along the length of the elastic member.
FIG. 7 is a view for explaining the distribution of the pressing pressure of the elastic member according to the first embodiment of the present invention, and FIG. 8 is a view for explaining the distribution of the pressing pressure of the elastic member according to the second embodiment of the present invention FIG. 9 is a view for explaining the distribution of the pressing pressure of the elastic member according to the third embodiment of the present invention, and FIG. 10 is a view for explaining the distribution of the pressing pressure of the elastic member according to the fourth embodiment of the present invention Figs. 7 to 10 illustrate the distribution of the pressing pressure of the theoretical elastic member. Fig.
FIG. 11 is a view for explaining the distribution of the pressing pressure of the elastic member according to the first embodiment of the present invention, and FIG. 12 is a view for explaining the distribution of the pressing pressure of the elastic member according to the second embodiment of the present invention FIG. 13 is a view for explaining the distribution of the pressing pressure of the elastic member according to the third embodiment of the present invention, and FIG. 14 is a view for explaining the distribution of the pressing pressure of the elastic member according to the fourth embodiment of the present invention And Figs. 11 to 14 illustrate the distribution of the pressing pressure of the actually measured elastic member.
Fig. 15 is a view for explaining the distribution of the pressing pressure of the elastic member according to the fifth embodiment of the present invention, and Fig. 15 explains the distribution of the pressing pressure of the theoretical elastic member.
FIG. 16 is a view for explaining the distribution of the pressing pressure of the elastic member according to the fifth embodiment of the present invention, and FIG. 16 illustrates the distribution of the pressing pressure of the actually measured elastic member.
Fig. 17 is a view for explaining the distribution of the pressing pressure of the elastic member according to the sixth embodiment of the present invention. Fig. 17 illustrates the distribution of the pressing pressure of the theoretical elastic member.
Fig. 18 is a view for explaining the distribution of the pressing pressure of the elastic member according to the sixth embodiment of the present invention, and Fig. 18 explains the distribution of the pressing pressure of the actually measured elastic member.
Fig. 19 is a view for explaining the distribution of the pressing pressure of the elastic member according to the seventh embodiment of the present invention, and Fig. 19 explains the distribution of the pressing pressure of the theoretical elastic member.
Fig. 20 is a view for explaining the distribution of the pressing pressure of the elastic member according to the seventh embodiment of the present invention, and Fig. 20 explains the distribution of the pressing pressure of the actually measured elastic member.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. &Quot; and / or "include each and every combination of one or more of the mentioned items. ≪ RTI ID = 0.0 >

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" And can be used to easily describe a correlation between an element and other elements. Spatially relative terms should be understood in terms of the directions shown in the drawings, including the different directions of components at the time of use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

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

FIG. 1 is an assembled perspective view illustrating a wiper blade assembly according to the present invention, and FIG. 2 is an exploded perspective view illustrating a wiper blade assembly according to the present invention.

1 and 2, a wiper blade assembly 100 according to the present invention includes a rubber contact member 600 abutting against a vehicle windshield, an elastic member 700 supporting the contact member, And a wiper arm fastening part 400 which is located in a predetermined region in the longitudinal direction of the wiper arm 700 and fastened to the wiper arm.

In this case, the door lock coupling part 400 is located at a predetermined position in the longitudinal direction of the elastic member 700 and includes a coupling cover 200 including a receiving part and an adapter (not shown) 300).

Although not shown in the drawing, the adapter 300 may be fastened to various types of connectors (not shown). At this time, the wiper arm is fastened to the adapter 300, or the connector (not shown) Which are obvious to those skilled in the art, and a detailed description thereof will be omitted below.

As described above, the wiper arm may be fastened to the adapter 300 or may be fastened to the connector (not shown), and the wiper arm may be fastened to the wiper arm The assembly can be wiped.

As shown in the drawing, the wiper arm fastening part 400 may be located in the central region of the elastic member in the longitudinal direction, and therefore, when the coupling cover 200 is positioned in the longitudinal direction of the elastic member And the adapter 300 attached to and detached from the receiving portion of the coupling cover 200 may be located in the center region of the elastic member in the longitudinal direction.

Further, since the wiper arm fastening part 400 fastened to the wiper arm is located in the central region in the longitudinal direction of the elastic member, the wiper arm is positioned at the center region in the longitudinal direction of the elastic member, And pressurized.

In the present invention, the pressing force of the wiper arm against the elastic member is defined as pressing force.

At this time, the wiper arm presses the elastic member by a pressing force, so that a certain pressure is generated in the elastic member.

In the present invention, the pressure generated in the elastic member by the pressing force of the wiper arm is defined as pressing pressure.

Meanwhile, the pressing force generated in the elastic member is transmitted to the contact member 600, and a certain pressure is generated in the contact member 600, thereby pressing the vehicle windshield surface.

In the present invention, a force for pressing the tight fitting member against the vehicle windshield surface is defined as an adhesion force.

That is, in the present invention, a pressing force is generated on the elastic member by the pressing force of the wiper arm pressing the elastic member, and the pressing force of the elastic member pushes the vehicle windshield surface by the pressing member .

In the present invention, it is desired to achieve better wiping characteristics by controlling the distribution of the pressing force and the adhesion force.

Although not shown in the drawing, the wiper blade assembly according to the present invention may further include a pair of cover members (not shown in the drawing, which may be generally referred to as a spoiler) into which the elastic member 700 is inserted, However, the present invention does not limit the presence or absence of the cover member.

FIG. 3A is a perspective view showing an elastic member according to the present invention, and FIG. 3B is a plan view showing an elastic member according to the present invention.

Hereinafter, the region of the elastic member according to the present invention will be defined through FIGS. 3A and 3B.

3A and 3B, the elastic member 700 according to the present invention includes a body portion and includes a central portion 710 located in a central region of the body portion.

The body portion includes a first body portion extending from the center portion 710 in a first direction and a first end portion 720a positioned at an end of the first body portion.

The body portion includes a second body portion extending in the second direction from the center portion 710 and a second end portion 720b positioned at an end of the second body portion.

That is, the elastic member 700 according to the present invention includes a center portion 710, end portions 720a and 720b positioned at both ends with respect to the center portion 710, and elastic members 720a and 720b disposed between the center portion and the end portions, Can be defined as a body part.

Based on this definition, as shown in FIG. 3B, the elastic member 700 includes an elastic member region A, and the elastic member region includes a first elastic member region A1 and a second elastic member A1, A region extending from the center portion 710 to the first end portion 720a may be defined as a first elastic member region A1 and the center portion 710 may be defined as a first elastic member region A1. An area from the beginning to the second end 720b can be defined as a second elastic member area A2.

3B, the first elastic member region A1 is formed to have a length from the center portion 710 to the first end portion 720a, that is, a half of the length of the first body portion, 1 body center point 730a, the first elastic member area A1 is divided into a half area C1 of the first body part from the center part 710 to the first body part center point 730a ).

The second elastic member region A2 has a length from the center portion 710 to the second end portion 720b, that is, a half of the length of the second body portion, The second elastic member area A2 includes a half area C2 of the second body part which is a region from the center part 710 to the second body part center point 730b.

In this case, when the elastic member area A is used as a reference, the half area C1 of the first body part and the half area C2 of the second body part are defined as a half area C of the body part can do.

That is, the half area C of the body part can be defined as the area from the first body part center point 730a to the center point 730b of the second body part via the center part 710. [

3B, the first elastic member region A1 has a length from the center portion 710 to the first end portion 720a, that is, 2/3 of the length of the first body portion, 1 body part 2/3 point 740a, the first elastic member area A1 is a portion of the first body part 740 which is a region from the center part 710 to the first body part 2/3 point 740a 2/3 region B1.

The second elastic member region A2 has a length from the central portion 710 to the second end portion 720b, that is, 2/3 of the length of the second body portion, (B2) of the second body portion, which is a region from the center portion 710 to the second body portion 2/3 point 740b, is defined as the second elastic member region 740b, .

In this case, when the elastic member area A is used as a reference, the 2/3 area B1 of the first body part and the 2/3 area B2 of the second body part are defined as the 2/3 area B of the body part can do.

That is, the 2/3 region B of the body portion is defined as the area from the first body portion 2/3 point 740a to the second body portion 2/3 point 740b via the center portion 710 can do.

Referring to FIG. 3B, the first elastic member region A1 is formed to have a length from the center portion 710 to the first end portion 720a, that is, a 1/3 point of the length of the first body portion, The first elastic member region A1 is defined by a first body portion 750a extending from the center portion 710 to the first body portion 1/3 point 750a, And a 1/3 area D1.

The second elastic member region A2 has a length from the center portion 710 to the second end portion 720b, that is, a 1/3 point of the length of the second body portion, (D2) of the second body part, which is a region from the center part 710 to the second body part 1/3 point (750b), is defined as the second elastic member area (750b) .

In this case, when the elastic member area A is used as a reference, the 1/3 area D1 of the first body part and the 1/3 area D2 of the second body part are defined as a 1/3 area D of the body part can do.

That is, the 1/3 area D of the body is defined as the area from the first body part 1/3 point 750a to the second body part 1/3 point 750b via the center part 710 can do.

3B, the first resilient member region A1 has a length from the center portion 710 to the first end portion 720a, that is, 3/4 point of the length of the first body portion, 1 body portion 3/4 point 760a, the first elastic member region A1 is a portion of the first body portion 760 which is a region from the center portion 710 to the first body portion 3/4 point 760a And a 3/4 area E1.

In addition, the second elastic member region A2 may have a length from the center portion 710 to the second end portion 720b, that is, 3/4 of the length of the second body portion, Fourth region E2 of the second body portion, which is a region from the center portion 710 to the second body portion 3/4 point 760b, is defined as the second elastic member region 760b, .

In this case, when the elastic member area A is used as a reference, the 3/4 area E1 of the first body part and the 3/4 area E2 of the second body part are defined as the 3/4 area E of the body part can do.

That is, the 3/4 region E of the body portion is defined as an area from the first body portion 3/4 point 760a to the second body portion 3/4 point 760b via the center portion 710 can do.

The pressing pressure of the elastic member according to the present invention will be described based on the definition of the area of the elastic member.

As described above, since the wiper arm presses the elastic member by the pressing force, the elastic member generates a constant pressure. In the present invention, the pressure generated in the elastic member by the pressing force of the wiper arm is a pressing force .

The distribution of the pressing pressure of the elastic member in the present invention is as follows.

For example, in the present invention, the pressing pressure of the half region C of the elastic member is constant and the pressing force of the elastic member in the region other than the half region C is increased .

In this case, the half area C of the body part can be defined as the area from the first body part center point 730a to the center point 730b of the second body part via the center part 710, A region other than the half region C of the negative second half 720b extends from the first body portion central point 730a to the first end portion 720a and from the second body portion central point 730b to the second end portion 720b. As shown in FIG.

Alternatively, in the present invention, the pressing pressure of the 2/3 area (B) of the body part of the elastic member is constant and the pressing pressure in the area other than the 2/3 area (B) of the body part is increased .

That is, the 2/3 region B of the body portion is defined as the area from the first body portion 2/3 point 740a to the second body portion 2/3 point 740b via the center portion 710 The area other than the 2/3 area B of the body part is divided into the area of the first end part 720a from the first body part 2/3 point 740a and the area of the second body part 2/3 And may be defined as the area of the second end 720b from the point 740b.

With the same logic, in the present invention, the pressing pressure of the 1/3 region D of the body portion of the elastic member is constant, and the pressing pressure in the region other than the 1/3 region D of the body portion is .

Further, in the present invention, in the present invention, the pressing pressure of the 3/4 region (E) of the body portion of the elastic member is constant and the pressing pressure in the region other than the 3/4 region (E) of the body portion is increased .

The following is a summary of this.

That is, the wiper blade assembly according to the present invention includes the contact member; And an elastic member for supporting the contact member, wherein the elastic member includes a body portion and a central portion located in a central region of the body portion.

The body portion may include a first body portion extending from the center portion in a first direction; A first end located at an end of the first body part; A second body extending from the center in a second direction; And a second end located at an end of the second body portion, the first end located between the central portion and the first end and the second end located between the central portion and the second end do.

In this case, in the present invention, the first pressing pressure is uniformly distributed from the first point to the second point, the pressing pressure from the first point to the first end is higher than the first pressing pressure, And the pressing pressure from the second point to the second end is higher than the first pressing pressure.

At this time, the first pressing pressure may be any constant of 9 to 14 gf / cm.

That is, when designing the pressing pressure of the elastic member of the wiper blade, it is possible to design the pressing pressure of the section in which the pressing pressure is uniformly distributed to a value of 9 to 14 gf / cm.

On the other hand, as described above, for example, the first point is a half point of the first body part with respect to the center part, and the second point is with respect to the center part, / 2 < / RTI >

Further, the first point may be 2/3 of the first body part with respect to the center part, and the second point may be 2/3 of the second sea part with respect to the center part.

In addition, the first point may be one-third of the first body part with respect to the center part, and the second point may be one-third of the second sea part with respect to the center part.

Further, the first point may be a point 3/4 of the first body portion with respect to the center portion, and the second point may be a point 3/4 of the second sea portion with respect to the center portion.

Therefore, in the present invention, the first point is any one of 1/3 point to 3/4 point of the first body part with respect to the center part, and the second point is a point on the basis of the center part , And may be any one of 1/3 to 3/4 of the second body part.

As a result, in the present invention, the first pressing pressure is uniformly distributed from the first point to the second point, and the pressing pressure from the first point to the first end and the second pressing point from the second point The pressing pressure from the second pressing portion to the second pressing portion is higher than the first pressing pressure.

The increase of the pressing pressure will be described later.

On the other hand, the region of the contact member of the present invention can also be defined in the same manner as the above-described manner of defining the region of the elastic member.

4A is a perspective view showing a contact member according to the present invention, and FIG. 4B is a plan view showing a contact member according to the present invention. More specifically, referring to FIGS. 4A and 4B, And a center portion (610) located at a center region of the body portion, the body portion including a first body portion extending in the first direction from the center portion, and a second body portion extending from the center portion in the first direction, And one end 620a.

In addition, the body portion includes a second body portion extending in the second direction from the center portion and a second end portion 620b located at the end of the second body portion.

That is, the contact member 600 according to the present invention includes a center portion 610, end portions 620a and 620b positioned at both ends with respect to the center portion, and a body portion positioned between the center portion and the end portion .

Hereinafter, for convenience of explanation, '' is attached to a region of each constitution of the contact member corresponding to the region of each constitution of the elastic member.

That is, the region A in the elastic member corresponds to the region A 'in the contact member.

At this time, the contact member 600 according to the present invention includes the contact member region A ', and the contact member region includes the first contact member region A1' and the second contact member region A2 ' A region extending from the central portion to the first end portion is defined as a first contact member region A1 'and an area extending from the center portion to the second end portion is defined as a first contact member region A1' Can be defined as a region A2 '.

The first contact member region A1 'has a length from the center portion 610 to the first end portion 620a, that is, a half of the length of the first body portion, to the first body part central point 630a , The first contact member area A1 'includes a half area C1' of the first body part that is the area from the center part 610 to the first body part center point 630a .

The second contact member region A2 'has a length from the center portion 610 to the second end portion 620b, that is, a half of the length of the second body portion, to the second body part center point 630b , The second contact member area A2 'includes a half area C2' of the second body part which is a region from the center part 600 to the second body part center point 630b .

In this case, when the tight contact member area A 'is taken as a reference, the half area C1' of the first body part and the half area C2 'of the second body part are located in the half area C ').

That is, the half area C 'of the body part can be defined as an area from the first body part center point 630a to the center point 630b of the second body part 610 via the center part 610.

The first contact member region A1 'has a length 620a from the center portion 610 to the first end portion, that is, 2/3 of the length of the first body portion, The first contact member area A1 'is defined as a region 640a of the first body part 640a that is the area from the center part 610 to the first body part 2/3 point 640a B1 ').

The second contact member region A2 'has a length from the center portion 610 to the second end portion 620b, that is, 2/3 of the length of the second body portion, to the second body portion 2/3 The second contact member region A2 'is defined as a region 640b of the second body portion that is the region from the center portion 610 to the second body portion 2/3 point 640b B2 ').

In this case, when the tight contact member area A 'is taken as a reference, the 2/3 area B1' of the first body part and the 2/3 area B2 'of the second body part are positioned in the 2/3 area B ').

That is, the 2/3 area B 'of the body part is divided into the area from the first body part 2/3 point 640a to the second body part 2/3 point 640b via the center part 610 Can be defined.

The first contact member region A1 'has a length from the center portion 610 to the first end portion 620a, that is, a 1/3 point of the length of the first body portion, The first contact member area A1 'is defined as a point 650a. The first contact member area A1' is a 1/3 area of the first body part, which is an area from the center part 610 to the first body part 1/3 point 650a D1 ').

The second contact member region A2 'has a length from the center portion 610 to the second end portion 620b, that is, a 1/3 point of the length of the second body portion, The second contact member area A2 'is defined as a third portion of the second body portion that is a region from the center portion 610 to the second body portion 1/3 point 650b D2 ').

In this case, the 1/3 area D1 'of the first body part and the 1/3 area D2' of the second body part are located in the 1/3 area D of the body part, ').

That is, the 1/3 area D 'of the body part is divided into the area from the first body part 1/3 point 650a to the second body part 1/3 point 650a via the center part 610 Can be defined.

The first contact member region A1 'has a length from the center portion 610 to the first end portion 620a, that is, a 3/4 point 660a of the first body portion length, The first contact member area A1 'is defined as a third quarter region of the first body portion, which is a region from the center portion 610 to the first body portion 3/4 point 660a E1 ').

The second contact member region A2 'has a length from the center portion 610 to the second end portion 620b, that is, a 3/4 point 660b of the second body portion length, The second contact member area A2 'is defined as a 3/4 point of the second body part, which is the area from the center part 610 to the second body part 3/4 point 660b E2 ').

In this case, when the contact member region A 'is taken as a reference, the 3/4 region E1' of the first body portion and the 3/4 region E2 'of the second body portion correspond to the 3/4 region E ').

That is, the 3/4 area E 'of the body part is divided into the area from the first body part 3/4 point 660a to the second body part 3/4 point 660b via the center part 610 Can be defined.

The adhesion of the contact member according to the present invention will be described based on the definition of the area of the contact member.

As described above, the pressing force generated in the elastic member is transmitted to the contact member 600, and a certain pressure is generated in the contact member 600 to press the vehicle windshield surface. In the present invention, And the pressing force of the tightening member against the vehicle windshield surface is defined as an adhesion force.

That is, in the present invention, a pressing force is generated on the elastic member by the pressing force of the wiper arm pressing the elastic member, and the pressing force of the elastic member pushes the vehicle windshield surface by the pressing member .

At this time, the distribution of the contact force of the contact member in the present invention is as follows.

That is, the wiper blade assembly according to the present invention includes the contact member; And an elastic member for supporting the contact member, wherein the contact member includes a body portion and a central portion located in a central region of the body portion.

The body portion may include a first body portion extending from the center portion in a first direction; A first end located at an end of the first body part; A second body extending from the center in a second direction; And a second end located at an end of the second body portion, the first end located between the central portion and the first end and the second end located between the central portion and the second end do.

In this case, in the present invention, the first adhesion force is uniformly distributed from the first point to the second point, the adhesion force from the first point to the first end increases from the first adhesion force, And the adhesion force to the second end portion is higher than the first adhesion force.

As described above, for example, the first point is 1/2 point of the first body portion with respect to the center portion, the second point is 1/2 of the second sea portion with respect to the center portion, Lt; / RTI >

Further, the first point may be 2/3 of the first body part with respect to the center part, and the second point may be 2/3 of the second sea part with respect to the center part.

In addition, the first point may be one-third of the first body part with respect to the center part, and the second point may be one-third of the second sea part with respect to the center part.

Further, the first point may be a point 3/4 of the first body portion with respect to the center portion, and the second point may be a point 3/4 of the second sea portion with respect to the center portion.

Therefore, in the present invention, the first point is any one of 1/3 point to 3/4 point of the first body part with respect to the center part, and the second point is a point on the basis of the center part , And may be any one of 1/3 to 3/4 of the second body part.

As a result, in the contact member of the present invention, the first adhesion force is uniformly distributed from the first point to the second point, and the adhesion force from the first point to the first end, FIG. 5 is a schematic view for explaining the curvature of a general elastic member, and FIG. 6 is a cross-sectional view of the elastic member according to the length of the elastic member. Fig. 8 is a view showing a change in curvature.

As shown in Fig. 5, in the case of the elastic member, there is no curvature as in X, but each includes different curvatures as in the case of Y and Z. [

The type of the wiper blade assembly can be classified into a conventional type and a flat type depending on the structure of the blade. In the case of a flat type wiper blade, the elastic member generally includes a curvature .

Including the curvature in the elastic member of the flat type wiper blade assembly is for controlling the distribution of pressing pressure applied by the wiper arm, and it is general to give different curvatures depending on the length of the elastic member.

Fig. 6 shows a change in the curvature applied to the elastic member according to the length of the elastic member.

Table 1 below shows k values for each inch, where k = 1 / R, where R is the curvature of the center portion of the elastic member.

Inch k inch k 14 0.00201 20 0.00382 15 0.00227 21 0.00418 16 0.00254 22 0.00456 17 0.00284 24 0.00537 18 0.00315 26 0.00626 19 0.00347 28 0.00721

That is, according to the present invention, k values can be obtained for each inch, as described above. However, the k values for each inch are exemplary. An experimental example according to the present invention will be described below. The present invention is not limited to the following experimental examples.

FIG. 7 is a view for explaining the distribution of the pressing pressure of the elastic member according to the first embodiment of the present invention, and FIG. 8 is a view for explaining the distribution of the pressing pressure of the elastic member according to the second embodiment of the present invention FIG. 9 is a view for explaining the distribution of the pressing pressure of the elastic member according to the third embodiment of the present invention, and FIG. 10 is a view for explaining the distribution of the pressing pressure of the elastic member according to the fourth embodiment of the present invention Figs. 7 to 10 illustrate the distribution of the pressing pressure of the theoretical elastic member. Fig.

In this case, the elastic member in FIG. 7 corresponds to a length of 16 inches (400 mm), and a k value for calculating the curvature R at the center of the elastic member at this time corresponds to 0.00254.

The elastic member in Fig. 8 corresponds to a length of 20 inches (500 mm), and the k value for calculating the curvature R at the center of the elastic member at this time corresponds to 0.00382.

The elastic member in Fig. 9 corresponds to a length of 24 inches (600 mm), and the k value for calculating the curvature R at the center of the elastic member at this time corresponds to 0.00537.

The elastic member in Fig. 10 corresponds to a length of 28 inches (700 mm), and the k value for calculating the curvature R at the center of the elastic member at this time corresponds to 0.00721.

As described above, for example, in the present invention, the pushing pressure of the 2/3 area (B) of the body part of the elastic member is constant and the pushing force in the area other than the 2/3 area (B) The pressure is increased.

7 to 10 show elastic members having lengths of 16, 20, 24 and 28 inches, respectively. The pressing pressure of the 2/3 region B of the body portion of each elastic member is constant, And the pressing pressure in the region other than the 2/3 region B of the body portion increases.

3B, the 2/3 region B of the body portion is located at the second body portion 2/3 from the first body portion 2/3 point 740a through the center portion 710 The area other than the 2/3 area B of the body part can be defined as the area from the first body part 2/3 point 740a to the area of the first end part 720a, May be defined as the area of the second end 720b from the second body portion 2/3 point 740b.

In this case, the pressing pressure of the 2/3 area (B) of the body portion of the elastic member is constant. The same pressing pressure, for example, a constant constant of 11.5 gf / cm. However, even if the design is designed with the same pressing pressure, since a certain error may be included in the manufacturing process, the change of the pressing pressure within the error range of ± 1.5 gf / cm from the constant constant May occur. ≪ / RTI >

That is, the pressing pressure of the 2/3 region (B) of the body portion of the elastic member is constant. It is preferable that the pressing pressure is ± 1.5 gf / cm at a constant constant over the entire 2/3 region (B) It means that it is maintained.

The increase in the pressing pressure in the region other than the 2/3 region (B) of the body portion can be defined as the maximum value of the pressing pressure in the region other than the 2/3 region (B) of the body portion .

That is, the increase in the pressing pressure in the region other than the 2/3 region (B) of the body portion increases the pressing force more than the 2/3 region (B) of the body portion, The pressing pressure increases in the range of +4 to +6 gf / cm from the pressing pressure across the entire region of the 2/3 region (B) of the body portion .

For example, assuming that the design is designed to have the same pressing pressure, for example 11.5 gf / cm, over the entire 2/3 area B of the body part, the pressing pressure of the 2/3 area B of the body part is The pressing pressure in the region other than the 2/3 region (B) of the body portion is 11.5 gf / cm, the pressing pressure is 11.5 gf / cm, The maximum value of the pressing pressure in the area other than the 2/3 area (B) of the body part means that the pressing pressure is set within the range of 15.5 to 17.5 gf / cm.

FIG. 11 is a view for explaining the distribution of the pressing pressure of the elastic member according to the first embodiment of the present invention, and FIG. 12 is a view for explaining the distribution of the pressing pressure of the elastic member according to the second embodiment of the present invention FIG. 13 is a view for explaining the distribution of the pressing pressure of the elastic member according to the third embodiment of the present invention, and FIG. 14 is a view for explaining the distribution of the pressing pressure of the elastic member according to the fourth embodiment of the present invention And Figs. 11 to 14 illustrate the distribution of the pressing pressure of the actually measured elastic member.

In this case, the elastic member in FIG. 11 corresponds to a length of 16 inches (400 mm), and the k value for calculating the curvature R at the center of the elastic member at this time corresponds to 0.00254.

In addition, the elastic member in Fig. 12 corresponds to a length of 20 inches (500 mm), and the k value for calculating the curvature R at the center of the elastic member at this time corresponds to 0.00382.

The elastic member in Fig. 13 corresponds to a length of 24 inches (600 mm), and the k value for calculating the curvature R at the center of the elastic member at this time corresponds to 0.00537.

In addition, the elastic member in Fig. 14 corresponds to a length of 28 inches (700 mm), and a k value for calculating the curvature R at the center of the elastic member at this time corresponds to 0.00721.

As described above, in the present invention, the pressing pressure of the 2/3 area (B) of the body part of the elastic member is constant and the pressing pressure in the area other than the 2/3 area (B) of the body part is increased .

That is, the pressing pressure of the 2/3 area (B) of the body part of the elastic member is constant. The same pressing pressure, for example, a constant constant of 11.5 gf / cm. However, even if the design is designed with the same pressing pressure, a constant error may be included in the manufacturing process, so that a change in the pressing pressure may occur within an error range of ± 1.5 gf / cm .

11 to 14, it is confirmed that the pressing pressure is maintained at a constant constant of ± 1.5 gf / cm over the entire 2/3 region (B) of the body portion.

As described above, the increase in the pressing pressure in the area other than the 2/3 area (B) of the body part means that the pressing pressure is higher than the 2/3 area (B) of the body part, The maximum value of the pressing pressure in the region other than the 2/3 region B is within the range of +4 to +6 gf / cm over the entire 2/3 region B of the body portion, .

11 to 14, a region other than the 2/3 region (B) of the body portion has an increased pressing pressure than a 2/3 region (B) of the body portion, and a 2/3 region (The constant value 11.5 +/- 1.5 gf / cm) over the whole of the 2/3 region B of the body portion in the region other than the region B of the body portion is +4 to +6 gf / cm And the pressing force is increased within the range of.

Fig. 15 is a view for explaining the distribution of the pressing pressure of the elastic member according to the fifth embodiment of the present invention, and Fig. 15 explains the distribution of the pressing pressure of the theoretical elastic member.

In this case, the elastic member in FIG. 15 corresponds to a length of 20 inches (500 mm), and the k value for calculating the curvature R of the center portion of the elastic member at this time corresponds to 0.00382.

As described above, in the present invention, the pressing pressure of the half area C of the body part of the elastic member is constant, and the pressing pressure in the area other than the half area C of the body part is increased .

15 is a view showing an elastic member having a length of 20 inches in which the pressing pressure of the half region C of the elastic member is constant and the pressing force of the half region C of the elastic member is constant, And the pressing pressure in the region increases.

3B, a half area C of the body part is an area from the first body part center point 730a to the center point 730b of the second body part via the center part 710 An area other than the half area C of the body part can be defined from the first body part center point 730a to the area of the first end part 720a and the area from the second body part center point 730b May be defined as the area of the second end 720b.

In this case, the pressing pressure of the half area C of the elastic part of the elastic member is constant. The same pressing pressure, for example, a constant constant of 11.5 gf / cm. However, even if the design is designed with the same pressing pressure, a constant error may be included in the manufacturing process, so that a change in the pressing pressure may occur within an error range of ± 1.5 gf / cm .

That is, the pressing pressure of the half area C of the elastic part of the elastic member is constant. The pressing pressure of the half area C of the body part is ± 1.5 gf / It means that it is maintained.

The increase of the pressing pressure in the area other than the half area C of the body part means that the pressing pressure is higher than the half area C of the body part but the half area of the body part C, the pressing pressure increases in the range of +4 to +6 gf / cm over the entire pressing area of the half area (C) of the body part do.

For example, assuming that the design is designed to have the same pressing pressure, for example, 11.5 gf / cm, throughout the half area C of the body part, the pressing pressure of the half area C of the body part is The pressing pressure in the region other than the half region C of the body portion may be higher than the pressing pressure of 11.5 gf / cm, The maximum value of the pressing pressure in an area other than the half area C of the body part means that the pressing pressure is set within the range of 15.5 to 17.5 gf / cm.

FIG. 16 is a view for explaining the distribution of the pressing pressure of the elastic member according to the fifth embodiment of the present invention, and FIG. 16 illustrates the distribution of the pressing pressure of the actually measured elastic member.

As described above, in the present invention, the pressing pressure of the half area C of the body part of the elastic member is constant, and the pressing pressure in the area other than the half area C of the body part is increased .

That is, the pressing pressure of the half area C of the elastic part of the elastic member is constant. The same pressing pressure, for example, a constant constant of 11.5 gf / cm. However, even if the design is designed with the same pressing pressure, a constant error may be included in the manufacturing process, so that a change in the pressing pressure may occur within an error range of ± 1.5 gf / cm .

Referring to FIG. 16, pressing force is maintained at a constant constant of ± 1.5 gf / cm over the half region C of the body portion.

As described above, the increase of the pressing pressure in the region other than the half region C of the body portion is caused by the fact that the pressing force is larger than the half region C of the body portion, The maximum value of the pressing pressure in the region other than the half region C is set to be in the range of +4 to +0.5 times the pressing pressure (constant constant 11.5 + 1.5 gf / cm) across the half region C of the body portion. Which means that the pressing pressure increases within the range of 6 gf / cm.

16, an area other than the half area C of the body part has a pressing pressure that is larger than a half area C of the body part, but a half area C of the body part, It can be confirmed that the pressing pressure increases within the range of +4 to +6 gf / cm compared with the pressing pressure (constant constant 11.5 ± 1.5 gf / cm)

Fig. 17 is a view for explaining the distribution of the pressing pressure of the elastic member according to the sixth embodiment of the present invention. Fig. 17 illustrates the distribution of the pressing pressure of the theoretical elastic member.

17 corresponds to a length of 20 inches (500 mm), and a k value for calculating the curvature R of the center portion of the elastic member at this time corresponds to 0.00382.

In the present invention, the pressing pressure of the 1/3 region (D) of the body portion of the elastic member is constant, and the pressing pressure in the region other than the 1/3 region (D) of the body portion is increased.

17 is a view showing an elastic member having a length of 20 inches, in which the pressing pressure of the 1/3 region D of the body portion of the elastic member is constant and the pressing pressure of the 1/3 region D of the body portion And the pressing pressure in the region increases.

3B, a 1/3 area D of the body part is divided into a first body part 1/3 point 750a, a center part 710, a second body part 1/3 point The area other than the 1/3 area D of the body part can be defined as the area from the first body part 1/3 point 750a to the area of the first end part 720a, And may be defined as the area of the second end 720b from the second body portion 1/3 point 750b.

In this case, the pressing pressure of the 1/3 region D of the body portion of the elastic member is constant. The same pressing pressure, for example, a constant constant of 11.5 gf / cm. However, even if the design is designed with the same pressing pressure, a constant error may be included in the manufacturing process, so that a change in the pressing pressure may occur within an error range of ± 1.5 gf / cm .

That is, the pressing pressure of the 1/3 region D of the body portion of the elastic member is constant. It is preferable that the pressing pressure is ± 1.5 gf / cm over the entire 1/3 region D of the body portion It means that it is maintained.

The increase in the pressing pressure in the area other than the 1/3 area D of the body part means that the pressing pressure is higher than 1/3 area D of the body part but the 1/3 area of the body part D, the pressing pressure increases in the range of +4 to +6 gf / cm from the pressing pressure over the entire one-third region (D) of the body portion do.

For example, assuming that the pressure is designed to be the same pressing pressure (for example, 11.5 gf / cm) throughout the 1/3 area D of the body part, the pressing pressure of the 1/3 area D of the body part The pressing pressure in the region other than the 1/3 region D of the body portion is 11.5 gf / cm, the pressing pressure is 11.5 gf / cm, The maximum value of the pressing pressure in the area other than the 1/3 area D of the body part means that the pressing pressure is set within the range of 15.5 to 17.5 gf / cm.

Fig. 18 is a view for explaining the distribution of the pressing pressure of the elastic member according to the sixth embodiment of the present invention, and Fig. 18 explains the distribution of the pressing pressure of the actually measured elastic member.

As described above, in the present invention, the pressing pressure of the 1/3 region D of the body portion of the elastic member is constant, and the pressing pressure in the region other than the 1/3 region D of the body portion is increased .

As described above, the pressing pressure of the 1/3 region D of the body portion of the elastic member is constant. The same pressing pressure, for example, a constant pressure over the entire 1/3 region D of the body portion, However, even if the design is designed with the same pressing pressure, a certain error may be included in the manufacturing process. Therefore, a change in the pressing pressure within an error range of ± 1.5 gf / cm And the like.

Referring to FIG. 18, it can be seen that the pushing pressure is maintained at a constant constant of ± 1.5 gf / cm over the entire 1/3 region D of the body portion.

As described above, the increase in the pressing pressure in the area other than the 1/3 area D of the body part means that the pressing pressure is larger than 1/3 area D of the body part, The maximum value of the pressing pressure in the area other than the 1/3 area D is set to be in the range of +4 to +0.5 times the pressing pressure (constant constant 11.5 + 1.5 gf / cm) Which means that the pressing pressure increases within the range of 6 gf / cm.

18, the area other than the 1/3 area D of the body part has an increased pressing pressure as compared with the 1/3 area D of the body part, but the 1/3 area D of the body part is increased, It can be confirmed that the pressing pressure increases within a range of +4 to +6 gf / cm compared with the pressing pressure (constant constant 11.5 ± 1.5 gf / cm)

Fig. 19 is a view for explaining the distribution of the pressing pressure of the elastic member according to the seventh embodiment of the present invention, and Fig. 19 explains the distribution of the pressing pressure of the theoretical elastic member.

19 corresponds to a length of 20 inches (500 mm), and the k value for calculating the curvature R at the center of the elastic member at this time corresponds to 0.00382.

In the present invention, the pressing pressure of the 3/4 region (E) of the body portion of the elastic member is constant and the pressing pressure in the region other than the 3/4 region (E) of the body portion is increased.

19 is an elastic member having a length of 20 inches, the pressing pressure of the 3/4 area E of the body part of the elastic member is constant, and the pressing pressure of 3/4 area E of the body part And the pressing pressure in the region increases.

3B, the 3/4 area E of the body part is located at the second body part 3/4 point from the first body part 3/4 point 760a through the center part 710 The area other than the 3/4 area E of the body part can be defined as the area from the first body part 3/4 point 760a to the area of the first end part 720a, And may be defined as the area of the second end 720b from the second body portion 3/4 point 760b.

In this case, the pressing pressure of the 3/4 region E of the body portion of the elastic member is constant. The same pressing pressure, for example, a constant constant of 11.5 gf / cm. However, even if the design is designed with the same pressing pressure, a constant error may be included in the manufacturing process, so that a change in the pressing pressure may occur within an error range of ± 1.5 gf / cm .

That is, the pressing pressure of the 3/4 region (E) of the body portion of the elastic member is constant. It is preferable that the pressing pressure is ± 1.5 gf / cm with a constant constant over the entire 3/4 region (E) It means that it is maintained.

The increase of the pressing pressure in the region other than the 3/4 region E of the body portion is caused by the fact that the pushing pressure is higher than the 3/4 region E of the body portion but the 3/4 region of the body portion E means that the pressing pressure increases in the range of +4 to +6 gf / cm than the pressing pressure applied to the entire 3/4 region E of the body portion do.

For example, assuming that the same pressing pressure, for example, 11.5 gf / cm, is applied over the entire 3/4 area E of the body part, the pressing pressure of the 3/4 area E of the body part 11.5 ± 1.5 gf / cm. The pressing pressure in the region other than the 3/4 region (E) of the body portion is higher than the pressing pressure of 11.5 gf / cm, The maximum value of the pressing pressure in the area other than the 3/4 area (E) of the body part means that the pressing pressure is set within the range of 15.5 to 17.5 gf / cm.

Fig. 20 is a view for explaining the distribution of the pressing pressure of the elastic member according to the seventh embodiment of the present invention, and Fig. 20 explains the distribution of the pressing pressure of the actually measured elastic member.

As described above, in the present invention, the pressing pressure of the 3/4 region (E) of the body portion of the elastic member is constant and the pressing pressure in the region other than the 3/4 region (E) of the body portion is increased .

As described above, the pressing pressure of the 3/4 area E of the elastic part of the elastic member is constant. The same pressing pressure, for example, constant pressure However, even if the design is designed with the same pressing pressure, a certain error may be included in the manufacturing process. Therefore, a change in the pressing pressure within an error range of ± 1.5 gf / cm And the like.

Referring to FIG. 20, it can be seen that the pushing pressure is maintained at a constant constant of ± 1.5 gf / cm over the entire third region E of the body portion.

As described above, the increase in the pressing pressure in the region other than the 3/4 region E of the body portion is caused by the fact that the pushing pressure is higher than the 3/4 region E of the body portion, The maximum value of the pressing pressure in the area other than the 3/4 area E is set to be in the range of +4 to +4 times the pressing pressure (constant constant 11.5 + 1.5 gf / cm) Which means that the pressing pressure increases within the range of 6 gf / cm.

20, the area other than the 3/4 area E of the body part has an increased pressing pressure as compared with the 3/4 area E of the body part, but the 3/4 area E of the body part has an increased pressing pressure, It can be confirmed that the pressing pressure increases within a range of +4 to +6 gf / cm compared with the pressing pressure (constant constant 11.5 ± 1.5 gf / cm)

 As described above, the wiper blade assembly according to the present invention includes the contact member; And an elastic member for supporting the contact member, wherein the elastic member includes a body portion and a central portion located in a central region of the body portion.

The body portion may include a first body portion extending from the center portion in a first direction; A first end located at an end of the first body part; A second body extending from the center in a second direction; And a second end located at an end of the second body portion, the first end located between the central portion and the first end and the second end located between the central portion and the second end do.

In this case, in the present invention, the first pressing pressure is uniformly distributed from the first point to the second point, the pressing pressure from the first point to the first end is higher than the first pressing pressure, And the pressing pressure from the second point to the second end is higher than the first pressing pressure.

At this time, in the present invention, the first point is any one of 1/3 point to 3/4 point of the first body part with respect to the center part, and the second point is a point with respect to the center part , And may be any one of 1/3 to 3/4 of the second body part.

As a result, in the present invention, the first pressing pressure is uniformly distributed from the first point to the second point, and the pressing pressure from the first point to the first end and the second pressing point from the second point The pressing pressure from the second pressing portion to the second pressing portion is higher than the first pressing pressure.

Further, in the present invention, the tightening force of the urging member can be controlled through the distribution control of the pressing pressure of the elastic member as described above.

That is, as described above, the wiper blade assembly according to the present invention includes the contact member; And an elastic member for supporting the contact member, wherein the contact member includes a body portion and a central portion located in a central region of the body portion.

The body portion may include a first body portion extending from the center portion in a first direction; A first end located at an end of the first body part; A second body extending from the center in a second direction; And a second end located at an end of the second body portion, the first end located between the central portion and the first end and the second end located between the central portion and the second end do.

In this case, in the present invention, the first adhesion force is uniformly distributed from the first point to the second point, the adhesion force from the first point to the first end increases from the first adhesion force, And the adhesion force to the second end portion is higher than the first adhesion force.

As a result, in the contact member of the present invention, the first adhesion force is uniformly distributed from the first point to the second point, and the adhesion force from the first point to the first end, And the adhesion force from the second point to the second end is higher than the first adhesion force.

On the other hand, in the present invention, the first adhesive force is uniformly distributed from the first point to the second point of the contact member includes maintaining the same adhesion force from the first point to the second point, However, this may include a constant error, which means that a change in adhesion may occur within an error range of ± 1.5 gf / cm.

The adhesion between the first end of the contact member and the first end and the adhesion between the second end and the second end of the contact member are greater than the first adhesion force, , The maximum value of the adhesion force increases in the range of +4 to +6 gf / cm from the first adhesion force.

Since this is the same as the above-described elastic member, a detailed description will be omitted below.

Consequently, the wiper blade assembly according to the present invention can control the distribution of the pressing pressure of the elastic member and the distribution of the adhesion force of the contact member.

Further, in the present invention, it is possible to improve the followability of the contact member of the wiper blade assembly to the windshield of the vehicle.

That is, generally, the wiper arm presses the wiper blade assembly with a predetermined pressing force, and the wiper blade assembly is brought into close contact with the windshield of the vehicle by the pressing force.

In order to improve the wiping characteristics of the wiper blade assembly, the wiper blade assembly and the windshield of the vehicle must have good contact characteristics. To this end, the distribution of the pressing pressure applied to the elastic member of the wiper blade assembly It is important to control.

In the present invention, by controlling the distribution of the pushing pressure applied to the elastic member and controlling the contact force of the close contact member which is brought into close contact with the wind of the vehicle through the distribution control of the pushing pressure of the elastic member, The followability to the shield can be improved, and the wiping characteristic of the wiper blade assembly can be improved.

Means that the contact member is brought into close contact with the glass even at the portion where the curvature of the glass end of the vehicle is severely curved.

More specifically, it is general that the pressing pressure of the elastic member is designed to be distributed uniformly throughout the elastic member.

Therefore, when the pressing pressure of a general elastic member, that is, the pressing force is uniformly distributed over the entire elastic member, the contact member is not in close contact with the glass surface of the vehicle in a portion where the curvature of the glass end of the vehicle is heavily bent .

However, in the present invention, the pushing pressure in a certain section is designed to be distributed uniformly, and the pressing pressure is increased in a section other than a predetermined section.

Therefore, according to the present invention, in designing the pressing pressure of the elastic member, by designing the pressing pressure to increase in a section other than a predetermined section, the pressing member is brought into close contact with the glass even at the portion where the curvature of the glass end of the vehicle is severely curved, The followability of the contact member with respect to the windshield of the vehicle can be improved.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

Claims (5)

A contact member; And
And an elastic member for supporting the contact member,
Wherein the elastic member is formed as a single unitary structure including a body portion and a central portion located in a central region of the body portion,
The body portion includes a first body portion extending from the center portion in a first direction; A first end located at an end of the first body part; A second body extending from the center in a second direction; And a second end located at an end of the second body portion,
A first point located between said central portion and said first end and a second point located between said central portion and said second end,
The first pressing pressure is uniformly distributed from the first point to the second point,
Wherein a pressing pressure from the first point to the first end is higher than the first pressing pressure and a pressing pressure from the second point to the second end is higher than the first pressing pressure. Blade assembly. The method according to claim 1,
The first point is any one of 1/3 to 3/4 of the first body part with respect to the center part,
Wherein the second point is one of a third point to a third point of the second body portion with respect to the center portion. 3. The method of claim 2,
Wherein the first point and the second point are mutually symmetric with respect to the center portion. The method of claim 3,
The reason why the first pressing pressure is uniformly distributed is that,
Wherein a change in pressing pressure occurs within an error range of 占 .5 gf / cm based on a constant constant. The method of claim 3,
Wherein a pressing pressure from the first point to the first end portion is higher than the first pressing pressure and that a pressing pressure from the second point to the second end portion is higher than the first pressing pressure,
The maximum value of the pressing pressure from the first point to the first end and the pressing pressure from the second point to the second end is increased within the range of +4 to +6 gf / cm from the first pressing pressure And the wiper blade assembly.

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