KR20060121464A - Automotive wiper blade tip clearance measuring device - Google Patents

Abstract

The present invention relates to a wiper blade tip clearance measurement device for automobiles, and in particular, a measurement device for measuring the tip clearance amount of a wiper blade, comprising: a base frame; An LM guide formed on an upper surface of the base frame such that the LM block is slidably moved in the Y axis according to the rotation of the first ball screw having a handle; A sliding plate formed to slide along the first guide rod along the X axis; An arm fixing jig formed to be rotatable in the sliding block of the sliding plate and configured to fix the wiper arm to which the wiper blade is fixed; And a measuring jig configured to be spaced apart from a side of the LM guide at an upper surface of the base frame by applying pressure thereto when the tip of the wiper blade is inserted.

According to the present invention as described above it is possible to accurately measure the tip clearance amount of the wiper blade irrespective of the length of the wiper blade to improve the wiping performance by limiting the tip clearance amount.

Description

Rolling angle measuring apparatus of wiper blade for car}

1 is a perspective view showing the configuration of a windscreen wiper blade tip clearance measurement apparatus according to the present invention;

Figure 2 is a front view showing the configuration of the arm fixing jig of the wiper blade tip clearance measuring apparatus for automobiles according to the present invention,

3 is a plan view showing the configuration of a measuring jig of the windscreen wiper blade tip clearance measuring apparatus according to the present invention;

Figure 4 is a side view showing the configuration of the measuring jig of the windscreen wiper blade tip clearance measuring apparatus according to the present invention,

5 is a perspective view showing a state of use of the wiper blade tip clearance measurement device for a vehicle according to the present invention.

<Explanation of symbols on main parts of the drawings>

1: wiper arm 3: wiper blade

100: tip clearance measurement device 200: base frame

300: LM guide 400: sliding plate

500: arm fixing jig 600: measuring jig

641: pressure gauge 651: indicator

The present invention relates to a wiper blade tip clearance measurement device for an automobile, and more particularly, to a wiper blade tip clearance measurement device for an automobile that can accurately measure the clearance of the tip of the wiper blade without being affected by the length of the wiper blade. will be.

In general, a wiper blade for washing down rainwater from the windshield of a vehicle or removing other debris transmits the driving force of the wiper motor installed in the vehicle to the wiper arm via a link mechanism, and such a wiper arm It is comprised so that it may reciprocate by this predetermined angle. In particular, the wiper blade is detachably installed at the tip of the wiper arm to remove rainwater or other debris that flows to the front windshield while the blade is in close contact with the windshield. .

On the other hand, such a wiper blade acts as a factor that lowers the wiping performance when the tip clearance amount, that is, the amount of the clearance amount that adds the values at the forward and backward directions when the wiper blade is fastened to the wiper arm, acts as a factor that lowers the wiping performance. It is necessary to limit the amount. The tip clearance amount is also referred to as a rolling angle.

However, since a separate device for measuring the tip clearance of the wiper blade is not developed at present, there is a problem in that it is not possible to measure the actual tip clearance, and thus there is no problem without limitation of the tip clearance.

The present invention is to solve the above problems, so that it is possible to accurately measure the tip clearance amount of the wiper blade irrespective of the length of the wiper blade to limit the tip clearance amount to improve the wiping performance The purpose of the present invention is to provide a wiper blade tip clearance measurement device for an automobile.

Features of the present invention for achieving the above object,

A measuring device for measuring the tip clearance of a wiper blade, comprising: a base frame; An LM guide formed on an upper surface of the base frame such that the LM block is slidably moved in the Y axis according to the rotation of the first ball screw having a handle; A sliding plate formed to slide along the first guide rod along the X axis; An arm fixing jig formed to be rotatable in the sliding block of the sliding plate and configured to fix the wiper arm to which the wiper blade is fixed; And a measuring jig configured to be spaced apart from a side of the LM guide at an upper surface of the base frame by applying pressure thereto when the tip of the wiper blade is inserted.

Here, the LM guide is further provided with a guide rail at the top to guide the movement of the LM block, the sliding plate is formed on the bottom guide rail groove for seating the guide rail of the LM guide.

Here, the arm fixing jig is fixed to the rotating shaft formed to vertically penetrate the sliding block of the sliding plate so as to be rotatable on the sliding block.

Here, the sliding block of the sliding plate is formed with a first screw hole on one side, the first fixing handle is coupled to the first screw hole, the first fixing handle is in contact with the first guide rod and the sliding The block is fixed to the first guide rod, and a second screw hole is formed at the other side, and a second fixing handle is coupled to the second screw hole so that the second fixing handle is in contact with the rotating shaft to fix the female fixing jig. Is fixed at the rotary shaft.

Here, the arm fixing jig and a body having a space in the form of a depression at the bottom; A seating plate that is bent into a needle shape so that the wiper arm is seated and coupled to an upper end of the space part; A fixing block fixing the wiper arm on an upper surface of the seating plate; A first guide block attached to a side of the body to guide the fixing block; A shaft for elevating the fixed block; And attached to the upper side of the body, and includes a lever for moving the shaft up and down.

Here, the measuring jig and the support is formed perpendicular to the base frame; A fixing plate coupled to the support and having a second guide rod; A second ball screw having a screw handle to raise and lower the fixing plate from the support; A second guide block attached to a pressure gauge to apply pressure to an upper surface thereof, the second guide block being slidable in the X-axis at the second guide rod of the fixed plate; A third guide block on which an indicator for measuring a clearance distance is mounted on an upper surface thereof and fixed to a second guide rod of the fixing plate; One side is interviewed with the pressure rod of the pressure gauge, the measurement rod of the indicator is interviewed on the other side, the two bearings and the stopper is coupled to the upper surface of the wiper blade is coupled between the second guide block and the third guide block Jig plate located in; And a fourth guide block which is slid from the second guide rod and has a seating groove formed thereon on the top surface thereof so that the jig plate is seated and fixed to the seating groove.

Here, the fixing plate is further provided with a pressure adjusting screw on the side to move the second guide block to apply pressure, the second guide block is further provided with a coupling hole coupled to the pressure adjusting screw on the side. do.

Hereinafter, with reference to the accompanying drawings, the configuration of the vehicle wiper blade tip clearance measuring apparatus according to the present invention will be described in detail.

1 is a perspective view showing the configuration of the windshield wiper blade tip clearance measuring apparatus for an automobile according to the present invention, Figure 2 is a front view showing the configuration of the arm fixing jig of the windshield wiper blade tip clearance measurement apparatus for cars according to the present invention, Figure 3 Figure 4 is a plan view showing the configuration of the measuring jig of the windscreen wiper blade tip clearance measurement apparatus according to the present invention, Figure 4 is a measurement jig of the windscreen wiper blade tip clearance measurement apparatus according to the present invention It is a side view which showed a structure.

1 to 4, the vehicle wiper blade tip clearance measuring apparatus 100 according to the present invention includes a base frame 200, an LM guide 300, a sliding plate 400, and an arm fixing jig. 500 and the measuring jig 600.

First, the base frame 200 is formed in a table form.

In addition, the LM guide 300 is formed on the upper surface of the base frame 200 so that the LM block 320 is slidably moved in the Y axis according to the rotation of the first ball screw 310 having the handle 311 at one end thereof. . Here, the LM guide 300 has a guide rail 330 is attached to the top to guide the movement of the LM block 320.

In addition, the sliding plate 400 is formed in a depression shape, two first guide rods 410 are fixed in the longitudinal direction inside both ends, and the sliding block 420 along the first guide rod 410 is X-axis. It is formed to be slidable. Here, the sliding plate 400 has a guide rail groove 430 in which the guide rail 330 of the LM guide 300 is seated on the bottom surface. Here, the sliding block 420 has a first screw hole 421 is formed on one side, the first fixing handle 423 is coupled to the first screw hole 421, the first fixing handle 423 is The sliding block 420 is fixed in the first guide rod 410 in contact with the first guide rod 410, and a second screw hole 425 is formed at the other side thereof, and the second screw hole 425 is formed in the second guide hole 425. 2, the fixing handle 427 is coupled to the shaft hole 429 is inserted into the upper surface of the rotating shaft 570 to be described later, the second fixing handle 427 is in contact with the rotating shaft 570, the female fixing jig 500 The body 510 of the) is fixed to the rotation shaft 570.

On the other hand, the arm fixing jig 500 is formed in a rectangular shape, the lower portion is bent in the form of a needle-shaped so that the body 510 and the wiper arm (1) is provided with a space 511 in the form of a depression (Space) ( The mounting plate 520 coupled to the upper end of the 511, the fixing block 530 fixing the wiper arm 1 on the upper surface of the mounting plate 520, and the body 510 of the body 510 to guide the fixing block 530. A first guide block 540 attached to the side, a shaft 550 for raising and lowering the fixed block 530, a lever attached to the upper side of the side of the body 510, and moves the shaft 550 up and down ( 560 and a rotating shaft 570 coupled to the bottom surface of the body 510 to rotate the body 510 on the sliding block 420 and coupled to the shaft hole 429 of the sliding block 420 of the sliding plate 400. It is composed of

In addition, the measuring jig 600 may include two support members 610 vertically formed on the base frame 200, a fixing plate 620 coupled to the support members 610, and having a second guide rod 621. , And a screw handle 631 to raise and lower the fixing plate 620 in the support 610, the second ball screw 630 positioned between the support 610, and a pressure gauge for applying pressure to the upper surface ( 641 is attached to the second guide block 640 is formed so as to slide on the X-axis from the second guide rod 621 of the fixing plate 620, and the indicator 651 for measuring the clearance distance on the upper surface is mounted The third guide block 650 fixed to the second guide rod 621 of the fixing plate 620, and one side is interviewed with the pressure rod 642 of the pressure gauge 641, the other side of the measurement of the indicator 651 Two bearings 661 with the rod 652 interviewed and into which the wiper blade 3 is inserted at the top; The stopper 663, which is supported by the end of the fur blade 3, is coupled to each other so that the jig plate 660 is positioned between the second guide block 640 and the third guide block 650, and the second guide rod 621. A sliding groove 671 is formed on the upper surface of the jig plate 660, and the fourth guide block 670 is fixed to the jig plate 660. Here, the fixing plate 620 is further provided with a pressure adjusting screw 623 on the side to move the second guide block 640 to apply pressure, the second guide block 640 is a pressure adjusting screw ( A coupling hole (not shown) to which the 623 is coupled is further provided.

Hereinafter, with reference to the accompanying drawings, the operation of the wiper blade tip clearance measurement device for a vehicle according to the present invention will be described in detail.

5 is a perspective view showing the state of use of the wiper blade tip clearance measurement device for a vehicle according to the present invention.

First, the measurer rotates the second fixing handle 427 in a state in which the arm fixing jig 500 is rotated according to the shape of the wiper arm 1, that is, bent to the left and right, and thus the body 510 of the arm fixing jig 500. ) Is fixed at the rotation shaft 570.

Then, the wiper arm 1 is coupled to the wiper blade 3, and the measurer operates the lever 560 in a state where the wiper arm 1 is seated on the seating plate 520 of the arm fixing jig 500. Lower the 550 to fix the wiper arm 1 with the fixing block 530.

In this state, when the measurer rotates the handle 311, the first ball screw 310 is rotated to move the LM block 320 of the LM guide 300. Then, the sliding plate 400 fixed to the LM block 320 slides on the X axis, and the arm fixing jig 500 fixed to the sliding block 420 of the sliding plate 400 is moved to the left side.

On the other hand, the measurer inserts the tip of the wiper blade 3 between the bearing 661 of the measuring jig 600, wherein the sliding block 420 of the sliding plate 400 in the first guide rod 410 Y Sliding to the side to hold the position and then rotating the first fixing handle 423 to fix the sliding block 420 in the first guide rod 410. Then, the fourth guide block 670 of the measuring jig 600 is moved from the second guide rod 621 to the Y axis to insert the tip of the wiper blade 3 between the bearings 661 of the jig plate 660. And fixed by the stopper 663.

Then, the measurer rotates the second ball screw 630 using the screw handle 631 of the measuring jig 600 to adjust the height of the fixing plate 620 to match the wiper blade (3) horizontally.

When the device is ready for measurement, the measurer turns on the pressure gauge 641 and indicator 651 and then sets a zero using each of the zero point switches.

Then, the measurer rotates the pressure adjusting screw 623 of the fixing plate 620, the pressure adjusting screw 623 pushes the second guide block 640, the pressure rod 642 of the pressure gauge 641 is jig The plate 660 is pushed to apply pressure to the tip of the wiper blade 3.

At this time, the measurer presses 30g (0.030Kg) through the pressure gauge 641 while rotating the pressure adjusting screw 623, and the measurement rod 652 of the indicator 651 is pushed to measure the clearance distance based on the zero point. Then, press the -30g (-0.030Kg) through the pressure gauge 641 to measure the clearance distance measured by the indicator 651, and then the two values are added to measure the tip clearance.

When the measurement is completed, the lever 560 is operated to raise the shaft 550 to release the fixing block 530 to remove the wiper arm 1 from the seating plate 520 to remove the wiper blade 3.

Therefore, it is possible to move to the X and Y axes so that the wiper blade can be mounted regardless of the length, and the axis can be rotated so that the wiper blade can be mounted regardless of the type of the wiper blade, and it is a digital pressure gauge and indicator. The tip clearance can be measured accurately.

According to the present invention, the wiper blade tip clearance measuring device for automobiles configured as described above, by allowing the tip clearance amount of the wiper blade to be accurately measured regardless of the length of the wiper blade, the wiping performance can be limited. There is an advantage to improve.

Claims (7)

In the measuring device for measuring the end clearance of the wiper blade, A base frame; An LM guide formed on an upper surface of the base frame such that the LM block is slidably moved in the Y axis according to the rotation of the first ball screw having a handle; A sliding plate formed to slide along the first guide rod along the X axis; An arm fixing jig formed to be rotatable in the sliding block of the sliding plate and configured to fix the wiper arm to which the wiper blade is fixed; And It is formed on the upper surface of the base frame is spaced apart from the side of the LM guide by a predetermined distance, the front end of the wiper blade is characterized in that it comprises a measuring jig for measuring the clearance distance by applying pressure thereto the tip of the wiper blade Clearance measuring device. The method of claim 1, The LM guide, Further provided with a guide rail on the top to guide the movement of the LM block, The sliding plate, The windshield wiper blade tip clearance measurement device, characterized in that the guide rail groove is formed on the bottom surface of the guide rail of the LM guide. The method of claim 1, The arm fixing jig, Vehicle wiper blade tip clearance measurement device, characterized in that fixed to the rotating shaft formed to vertically penetrate the sliding block of the sliding plate to be rotatable on the sliding block. The method of claim 3, wherein The sliding block of the sliding plate, A first screw hole is formed at one side, and a first fixing handle is coupled to the first screw hole, so that the first fixing handle contacts the first guide rod to fix the sliding block at the first guide rod. A second screw hole is formed on the other side, and the second fixing handle is coupled to the second screw hole, the second fixing handle is in contact with the rotating shaft to fix the female fixing jig on the rotating shaft Wiper blade tip clearance measurement device. The method of claim 1, The arm fixing jig, A body having a space portion in the form of a depression; A seating plate that is bent into a needle shape so that the wiper arm is seated and coupled to an upper end of the space part; A fixing block fixing the wiper arm on an upper surface of the seating plate; A first guide block attached to a side of the body to guide the fixing block; A shaft for elevating the fixed block; And Attached to the top of the side of the body, the vehicle wiper blade tip clearance measurement device comprising a lever for moving the shaft up and down. The method of claim 1, The measuring jig, A support vertically formed in the base frame; A fixing plate coupled to the support and having a second guide rod; A second ball screw having a screw handle to raise and lower the fixing plate from the support; A second guide block attached to a pressure gauge to apply pressure to an upper surface thereof, the second guide block being slidable in the X-axis at the second guide rod of the fixed plate; A third guide block on which an indicator for measuring a clearance distance is mounted on an upper surface thereof and fixed to a second guide rod of the fixing plate; One side is interviewed with the pressure rod of the pressure gauge, the measurement rod of the indicator is interviewed on the other side, the two rollers are inserted into the wiper blade on the upper surface, the stopper is coupled to the second guide block and the third guide Jig plate located between the blocks; And A wiper blade tip for automobiles, comprising: a fourth guide block slid from the second guide rod, and a seating groove in which the jig plate is seated on an upper surface thereof is seated and fixed to the seating groove; Clearance measuring device. The method of claim 6, The fixing plate, A pressure adjusting screw is further provided on the side to move the second guide block to apply pressure. The second guide block, Vehicle wiper blade tip clearance measurement device further comprises a coupling hole coupled to the pressure adjustment screw on the side.

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