KR20040037542A - Wiper for vehicle - Google Patents

Abstract

PURPOSE: A wiper for a vehicle is provided to uniformly inject a washer liquid to an entire windshield glass and rapidly secure the driver's front view by minimizing the number of the operation of a blade. CONSTITUTION: A wiper for a vehicle comprises a first press-supplying part(10) which is connected to an end of a front arm and which has a first flow pipe for the flow of a washer liquid; a second press-supplying part(20) which is coupled to a side of the first press-supplying part and which has a second flow pipe for the flow of a washer liquid supplied from the first flow pipe and a connection protrusion communicated with the second flow pipe; a support part(30) composed of a support body(32) coupled with the second press-supplying part with a hinge and support legs(33a,33b) coupled to both ends of the support body; a blade part(40) which is coupled with the support legs and which has blades(41a,41b) at both edges of the lower surface thereof; a water flowing pipe part which is inserted in the center of the blade part and which has an inflow pipe at a side of an upper end and a plurality of discharge pipes at a lower end; a plurality of injection nozzle communicated with the discharge pipes; and a junction pipe(60) a side of which is detachably connected to the connection protrusion of the second press-supplying part and the other side of which is connected to the inflow pipe.

Description

Wiper for vehicle {Wiper for vehicle}

The present invention relates to an automobile wiper, and more particularly, it is possible to spray the washer liquid uniformly over the entire area on the windshield glass of the vehicle on which the blade touches, and to use the washer liquid since the washer liquid can be used until it is exhausted. The present invention relates to a vehicle wiper that can minimize the use and moreover, to secure a driver's front field of sight with a minimum number of blade rotations.

In general, the vehicle is equipped with a wiper that rotates left and right on the windshield glass installed on the front of the vehicle to secure the driver's front vision when moving, and removes foreign substances such as rainwater and dust attached to the windshield glass.

In addition, the washer liquid is injected onto the windshield glass for more effective removal, for this purpose, a washer tank, which is usually located in the engine room of a vehicle, a washer liquid pump for introducing and discharging the washer liquid from the washer tank, and the washer liquid by the washer liquid pump. The spray nozzle for spraying onto the windshield glass of the vehicle is provided with a washer fluid injector formed on one side of the vehicle bonnet to enable effective removal of foreign substances.

However, in the general wiper and washer fluid injector, when the washer fluid is injected from the injection nozzle and cleaned by the rotating wiper blade, the injection nozzle is made at an angle, and the washer fluid is injected only to a certain portion of the windshield glass of the vehicle. The edges of the windshield glass that are not sprayed with the washer fluid cannot be cleaned immediately, and the driver's forward field of vision can be secured only after the wiper blade has rotated several times. There is a problem causing waste of washer liquid by spraying, and as a means for improving the "vehicle window brush washer liquid injection structure (application number; 20-2000-0004282)" has been filed in advance.

1 is a cross-sectional view showing a conventional vehicle window brush washer liquid injection structure, Figure 2 is a bottom view of a blade support which is a component of a conventional vehicle window brush washer liquid injection structure, Figure 3 is a side view of FIG.

As shown in Fig. 1 to Fig. 3, the pre- filed "vehicle window brush washer fluid injection structure" is a wiper arm (A) consisting of the rear arm (1), the middle arm (2) and the front arm (3), and the rear It is installed at one end of the arm (1), is connected to the pump outflow pipe (4), the pump outflow pipe (4) into which the washer fluid (W) flowing out from the washer tank, the rear arm (1), the middle A pressurized tube 5 formed in a tubular shape so that the washer fluid is pumped along the arm 2 and the front arm 3, and a connecting portion 5a is formed at an end thereof, and a connecting portion 5a of the pressure feeding tube 5; A pair of tubular members 6 and a plurality of injection nozzles 7a and 7b for moving the pumped washer fluid such that the washer fluid pumped through the communicating inlet 6a is sprayed over the entire length of the blade 9. The blade support (8) consisting of, 7c, 7d, when the driving of the wiper is controlled by the driver's operation during high-speed driving, washer The washer fluid W filled in the ink is pumped through the pump outlet pipe 4 to the pressure feed pipe 5 located in the wiper arm A, and the pressure washer fluid is formed in the pipe member 6 of the blade support 8. When sprayed through a plurality of spray nozzles 7a, 7b, 7c, and 7d, the blade 8 formed at the center of the bottom surface of the blade support 8 is rotated in close contact with the wind shield glass, thereby over the entire length of the blade 9. A vehicle window brush washer liquid jetting structure has been proposed in which a driver can secure a fast forward field of view by allowing the washer liquid to be injected and by using a smaller amount of washer liquid and by rotating the blade 9 in fewer times.

However, since the blade support used in the conventional vehicle window brush washer liquid spraying structure has a blade formed at the center of the bottom surface of the blade support, the washer liquid is sprayed from the spray nozzles installed at regular intervals on both edges of the formed blade. When the washer liquid is injected from the injection nozzle, the washer liquid is swept to both edges of the wind shield glass by one rotation of the blade, so that the blade is not uniformly sprayed on the entire area of the wind shield glass that the blade touches. Also, if foreign matter (dust) remains on the windshield glass because it is impossible to reuse it, it is possible to further spray the washer fluid or to remove the remaining foreign matter by rotating the blade more than a predetermined number of times. Driver's swift Rooms visibility had not been greatly improved.

The present invention is to solve the problems of the prior art, an object of the present invention is to enable the spraying of the washer liquid uniformly over the entire area on the windshield glass of the vehicle to which the blade touches, to use until the injected washer liquid is exhausted It is possible to minimize the use of the washer fluid, and to provide a car wiper that quickly secures the front field of view of the driving driver with a minimum number of blade rotations.

The present invention for achieving the above object is a wiper arm consisting of a rear arm, an intermediate arm and an anterior arm, a pump outflow pipe installed at one end of the rear arm, the washer fluid flowing out of the washer tank, the rear arm, It is connected to the pump outlet pipe so that the washer fluid is pumped up to the middle arm and the front arm, and is connected to the front arm end on a known wiper made of a pressure pipe installed in the wiper arm, and one side of the pump is connected to the pump. The first pumping part including a first flow pipe and the other side of the first pumping part are inserted and coupled to allow the washer fluid injected into the pipe and flowable, and once the washer fluid is pushed through the first flow pipe to flow. A second pressurizing portion including a second flow tube and a connecting protrusion communicating with the second flow tube, a support body hinged to the second pressurizing portion, and A support part consisting of a support leg coupled to both ends of the support body, and a blade part coupled to the support leg and having dual blades at both edges of the lower surface, interpolated in the center of the blade part, and an inlet pipe at one side of the upper end of the support body; Is formed, the water flow pipe portion formed with a plurality of outflow pipes at the bottom, a plurality of injection nozzles are installed in communication with the plurality of outflow pipes, one side is detachably connected to the connecting projection of the second conveying unit, the other side Is connected to the inlet pipe is configured to include a joint pipe to enable the movement of the washer fluid.

1 is a cross-sectional view showing a conventional vehicle window brush washer liquid injection structure,

2 is a bottom view of a blade support which is a component of a conventional vehicle window brush washer liquid spraying structure,

3 is a side view of FIG.

4 is a perspective view showing a vehicle wiper of the present invention,

FIG. 5 is an exploded cross-sectional view illustrating a first compression unit and a second compression unit that are components of an automobile wiper of the present invention; FIG.

6 is a cross-sectional view taken along line A-A of FIG.

7 is a cross-sectional view showing a blade portion that is a component of an automobile wiper of the present invention;

Figure 8 is a bottom view showing a blade portion that is a component of the automotive wiper of the present invention.

<Code Description of Main Parts of Drawing>

10: first conveying unit 11: the first flow pipe

12: fixed step 20: second conveying unit

21: second flow tube 22: connecting projection

23: fixing groove 30: support portion

31: hinge 32: support body

33a, 33b: Support leg

33aa, 33ab, 33ac, 33ba, 33bb, 33bc: rail

40: blade portion 41a, 41b: blade

42a, 42b: rail groove 50: inlet pipe

52a, 52b, 52c: outlet pipe 53a, 53b, 53c: injection nozzle

60: joint pipe

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the embodiment of the present invention will be described in detail.

Figure 4 is a perspective view showing a vehicle wiper of the present invention, Figure 5 is an exploded cross-sectional view showing a first compression unit and a second compression unit that is a component of the automotive wiper of the present invention, Figure 6 is a cross-sectional view AA of FIG. FIG. 7 is a cross-sectional view illustrating a blade unit that is a component of an automobile wiper of the present invention, and FIG. 8 is a bottom view illustrating a blade unit that is a component of an automobile wiper of the present invention.

As shown, the vehicle wiper of the present invention is a wiper arm consisting of a rear arm, an intermediate arm and a front arm, and a pump outflow pipe installed at one end of the rear arm and into which the washer fluid W flowing out of the washer tank is introduced. And connected to the pump outflow pipe, so that the washer fluid to the rear arm, the middle arm and the front arm, and is connected to the front arm end on a known wiper consisting of a pressure pipe installed in the wiper arm As the one side is inserted into the pressure pipe and the first washer (10) including the first flow pipe (11) and the other side of the first pressure delivery unit (10) so that the washer fluid can be flowed and flowed in and coupled A second pressure sending part including a second flow pipe 21 and a connection protrusion 22 communicating with the second flow pipe 21 at one end thereof so that the washer fluid fed through the first flow pipe 11 may flow; 20) and the second pressure The support part 30 which consists of the support body 32 couple | bonded with the sending part 20 and the hinge 31, and the support legs 33a and 33b couple | bonded with the both ends of the said support body 32, and the said support legs 33a and 33b. Is coupled to the blade, the blade portion 40 having dual blades 41a and 41b formed at both edges of the lower surface, and inserted into the center of the blade portion 40, the inlet pipe 51 is formed on one side of the upper end. And a flow pipe 50 having a plurality of outlet pipes 52a, 52b, and 52c formed at the bottom thereof, and a plurality of injection nozzles 53a, 53b which are installed in communication with the plurality of outlet pipes 52a, 52b, and 52c. 53c), and one side is detachably connected to the connecting protrusion 22 of the second pressure sending unit 20, and the other side is connected to the inlet pipe 51 to allow the washer fluid W to move. It consists of a joint pipe (60).

The coupling between the first compression unit 10 and the second compression unit 20 forms a fixed step 12 at the upper end of the lower inner surface of the first compression unit 10, one end of the lower surface of the second compression unit 20 When the fixing groove 23 is formed in the one side of the first conveying unit 10 into the second conveying unit 20, the fixing step 12 is seated in the fixing groove 23, thereby enabling a fixed coupling. Let's do it.

The coupling between the support legs 33a and 33b and the blade portion 40 forms a plurality of rails 33aa, 33ab, 33ac, 33ba, 33bb, 33bc at the ends of the support legs 33a and 33b, and the blade portion ( The rail grooves 42a and 42b are formed at both ends of the 40 to be coupled to each other.

The plurality of injection nozzles 53a, 53b, and 53c are formed at both side ends and the central end, respectively, along the center surface between the dual blades 41a and 41b formed at the bottom edge of the blade portion 40, When the blades 41a and 41b are rotated, the washer fluid injected through the plurality of injection nozzles 53a, 53b and 53c is trapped in the space formed between the dual blades 41a and 41b in contact with the windshield glass. The remaining amount of is left until it is exhausted or the rotation of the blades 41a and 41b stops.

When the joint pipe 60 is connected to the inlet pipe 51, the diameter of the other end portion of the inlet pipe 51 is made slightly larger than the diameter of the opening hole of the joint pipe 60 to be connected in an interference fit method. . In addition, it is preferable to apply an adhesive to the outer periphery of one end portion of the inlet pipe 51 so as to be firmly coupled.

It demonstrates the effect of the present invention made of the above configuration.

When the driver controls the driving of the wiper while driving, the washer fluid W filled in the washer tank is pumped along the pump pipe located in the wiper arm through the pump outlet pipe 4. The pressurized washer fluid is pumped into the joint pipe 60 through the first flow pipe 11 and the second flow pipe 21.

The washer fluid pumped into the joint pipe 60 is pumped into the water flow pipe part 50 inserted into the blade part 40 through the inlet pipe 51, and the pumped washer fluid is discharged from the respective outlet pipes 52a, 52b, and 52c. When a plurality of injection nozzles (53a, 53b, 53c) formed at the end is sprayed, the double blades (41a, 41b) formed in the blade portion 40 in close contact with the wind shield glass is rotated, so as to adhere to the wind shield glass Remove foreign substances.

At this time, the plurality of injection nozzles (53a, 53b, 53c) are formed at both ends and the center end along the center surface between the double blades (41a, 41b) formed on the bottom edge of the blade portion 40, The washer fluid injected from the injection nozzles 53a, 53b, and 53c of the nozzle is rotated in the state in which the dual blades 41a and 41b are rotated in the state of being trapped in the dual blades 41a and 41b in close contact with the windshield glass. There is no washer fluid flowing down both edges of the windshield glass so that the remaining amount of washer fluid is exhausted or trapped in the double blades 41a and 41b until the rotation of the double blades 41a and 41b stops, thereby reducing the amount of washer fluid. The foreign matter can be removed, and since the dual blades 41a and 41b rotate while the washer fluid remains in the wind shield glass, it is generated between the wind shield glass and the dual blades 41a and 41b. By minimizing the wear of the blade due to low friction, it is possible to use the blade support which is a consumable for a long time.

In addition, when the blade support is to be replaced, the wiper is spaced apart from the windshield glass, and then the second compression unit 20 connected to the first compression unit 10 is raised to the first compression unit 10 to fix the fixing groove 23. The fixed step 12 fixedly connected to the) is separated to facilitate the replacement of the blade support.

In addition, among the plurality of injection nozzles 53a, 53b, and 53c, the washer liquid injected from the injection nozzles 53b and 53c positioned on the upper and middle surfaces of the windshield glass flows down along the windshield glass. When the blades 41a and 41b are rotated, the front surface of the windshield glass that is in close contact with the blade can be cleaned by using the washer liquid.In addition, since the blades are formed in double, fast forward field can be secured with fewer blades. Do.

As described above, the present invention forms a double blade that is in close contact with the windshield glass of the vehicle, and by spraying the washer liquid to the inside of the formed double blade, it is uniform to the entire area on the windshield glass of the vehicle that the blade touches. It makes it possible to spray the washer fluid, and it is possible to use the washer fluid until it is exhausted, thus minimizing the use of the washer fluid. Exhibits the effect of making it possible to secure.

Although the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that modifications and variations can be made within the spirit and scope of the invention, and such modifications and variations will fall within the scope of the appended claims.

Claims (3)

A wiper arm consisting of a rear arm, an intermediate arm and an anterior arm, a pump outflow pipe installed at one end of the rear arm, into which the washer fluid flowing out of the washer tank flows, and the washer fluid is pumped to the rear arm, the intermediate arm and the front arm. In the wiper made of a pressure feed pipe that is connected to the pump outlet pipe, and installed in the wiper arm, As the first arm is connected to the end of the front arm, including a first flow pipe (11) so that one side of the washer fluid is injected into the pressure pipe, the first flow pipe (11), and The other side of the first pumping unit 10 is inserted and coupled, and the second flow tube 21 and the second flow tube 21 at one end so that the washer liquid can be flowed through the first flow tube 11 flows. A second compression unit 20 including a connecting protrusion 22 communicating therewith, A support part 30 formed of a support body 32 coupled to the second compression part 20 and a hinge 31 and support legs 33a and 33b coupled to both ends of the support body 32; The blade portion 40 is coupled to the support legs (33a, 33b), the blades (41a, 41b) is formed on both edges of the lower surface of the double, An inlet pipe 51 is inserted into the center of the blade portion 40, the inlet pipe 51 is formed on one side of the upper end, the flow pipe 50 is formed with a plurality of outlet pipes (52a, 52b, 52c) at the bottom, A plurality of injection nozzles 53a, 53b, and 53c installed in communication with the plurality of outlet pipes 52a, 52b, and 52c; One side is detachably connected to the connection protrusion 22 of the second pressure sending unit 20, and the other side is connected to the inlet pipe 51 includes a joint pipe 60 to enable the movement of the washer fluid. Automotive wiper, characterized in that configured to. The method of claim 1, The coupling between the first compression unit 10 and the second compression unit 20 forms a fixed step 12 at the upper end of the lower inner surface of the first compression unit 10, one end of the lower surface of the second compression unit 20 Forming the fixing groove 23 in the, when one side of the first conveying unit 10 is inserted into the second conveying unit 20, the fixed step 12 is seated in the fixing groove 23 is characterized in that it is coupled Car wipers. The method of claim 1, The plurality of injection nozzles (53a, 53b, 53c) is located on both sides and the center end along the center surface between the double blades (41a, 41b) formed on the bottom edge of the blade portion 40, respectively Car Wiper.