Wiper rubber performance holding tool

Abstract

To provide a wiper rubber performance holding tool that solves such the problem that a wiper of a vehicle is dusted and is likely to collect sand and has troublesome of checking and cleaning the sand because it tends to be neglected by reducing a burden on drivers of such the vehicles and obtaining a long-term clear visual field at the time of rain.SOLUTION: A wiper rubber performance holding tool includes: a body 1 including a front surface wall 11, an upper surface wall 12, and both side surface walls 13, 13 and provided with openings 13a, 13b in a lower part and a rear part; an L-shaped metal fitting 2 inserted into a slit 8 formed in the front surface wall 11 of the body 1 to tightly hold a blade B; a lift leg 3 provided with a shaft through-hole 3f, a magnet 4, and a non-slip part 20 in necessary positions and pivotally fitted into the body 1; a plate 5 brought into close contact with an inner surface 11d; a double-sided tape 6 affixed while facing holding parts 2a, 11a; and a lock screw 7 being screwed into the screw hole 9 of the front surface wall 11 to fix the L-shaped metal fitting 2.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a wiper rubber performance retainer that lifts an automobile wiper from a windshield surface to retain the wiping performance of the wiper rubber that is constantly in a pressure-contact state. [Background technology]

[0002] In dusty construction sites and vehicles used in agriculture and forestry in rural areas, sand and dust easily accumulate between the wiper and the windshield, and if inspection and cleaning of the sand and dust is neglected, the wiper rubber will have to be replaced early, and if replacement of worn wiper rubber is postponed, there are concerns about the safety of driving in the rain. Under such circumstances, drivers who want to ensure a clear view when it rains take measures such as replacing wiper rubber with reduced wiping performance early and raising the wiper when getting out of the car.

[0003] In order to solve such problems, Patent Document 1 discloses a wiper pause device in which devices are attached to the wiper arm and the lower part of the windshield surface, and these devices engage with each other to raise the wiper above the windshield surface, thereby preventing deterioration of the wiper rubber. Patent Document 2 also discloses a wiper lifter that is similarly attached to the wiper arm to lift the wiper when not in use and has a mechanism for returning the wiper to the windshield surface using the repulsive force of a magnet, thereby extending the wiping life of the wiper. Currently, a wiper stand (product name) that is sold online is known as a wiper lifting device, although it is only a few in number. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2010-64659 [Patent Document 2] Real No. 3128823 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the devices for lifting the wipers disclosed in Patent Document 1 and Patent Document 2 are both attached to the arm of the wiper, and since the shape of the arm varies depending on the manufacturer and the model, there are problems such as limitations on the way they can be attached to the arm. On the other hand, ideas for lifting the wipers using an electric system have also been proposed, but since the electric system requires wiring and is troublesome and costly to install, even if it becomes practical, it is considered to be unrealistic and cost-effective to retrofit the wipers of existing vehicles, and has not yet become widespread in existing wiper stands.

[0006] Currently, it is estimated that approximately 70% of wipers installed on domestically manufactured vehicles are tournament-type blades, and these tournament-type blades are mainly installed on trucks, work vehicles, commercial vehicles, light trucks, etc. However, tournament-type blades have many joints, making it difficult to install a lifting device, so installation on the arm was chosen.

[0007] The present invention aims to provide a wiper rubber performance retaining device that can be attached directly to the tournament-type blade described above and that can raise the blade off the windshield surface with a manual operation of 1 to 2 seconds when not in use, thereby freeing the driver from the hassle of checking and cleaning off sand and dust when starting to drive, while also maintaining the wiping performance of the wiper rubber, thereby ensuring clear visibility for a long period of time every time it rains. [Means for solving the problem]

[0008] The main body has a front wall, a top wall, and both side walls, a clamping portion is provided in the upper half of the front wall, a straight slit is provided from the center to the inside, and a plate is attached to the inner surface of the front wall, and a screw hole is provided from the lower part of the front wall to between the slits. The main body has a rectangular shape in plan view, and an L-shaped metal fitting that is inserted into the slit with the short side direction of a belt-shaped iron plate bent into an L shape as a clamping portion and the long side direction as a straight insertion portion. The front and rear ends of the rectangular thick plate are inserted into the slit as viewed from the side. The lift legs are formed in a semicircular shape, have an axle hole passing through the center of the semicircle at the tip end, a magnet is fitted into a stepped hole adjacent to the axle hole, and an anti-slip pad is fitted into a U-shaped groove at the rear end, and are axially attached so as to be freely rotatable within the main body.The lift legs also include double-sided tape attached opposite the clamping portion of the L-shaped metal fitting and the clamping portion of the front wall, and a locking screw that screws into the screw hole to secure the L-shaped metal fitting, and are attached to the wiper blade. Effect of the Invention

[0009] The present invention is attached to the wiper blade of an automobile and lifts the blade, allowing sand and dust that accumulates between the windshield and the wiper rubber to pass through, freeing the driver from the burden of troublesome inspection and cleaning of sand and dust, etc. In addition, the wiping performance of the wiper rubber is maintained, and the windshield surface is wiped clean every time it rains, ensuring clear visibility during rainy days and reducing some of the maintenance required, allowing for more comfortable driving than before. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is an enlarged perspective view showing the entirety of the present invention. [Diagram 2] FIG. 1 is a perspective view showing an entire tournament-style blade to which the present invention is attached. [Diagram 3] FIG. 2 is an enlarged cross-sectional view showing the lift legs of the present invention in an upright position. [Figure 4] This is an HH cross-sectional view of a clamped tournament-style blade and a side view of the present invention showing the tournament-style blade in a raised state. [Diagram 5]FIG. 4 is an enlarged cross-sectional view of a main portion showing a lift leg flip-up means and a lift leg locking means of the present invention. [Figure 6] FIG. 2 is an enlarged rear view showing the main body of the present invention. [Figure 7] FIG. 2 is an enlarged rear view showing the lift leg of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This wiper rubber performance retainer A is intended to be attached to a tournament-type blade B (hereinafter referred to as blade B), and is composed of the following main elements as shown in Figures I and 3: a main body 1, an L-shaped bracket 2, a lift leg 3, a magnet 4, a plate 5, double-sided tape 6, and a locking screw 7.

[0012] As shown in Figures 1, 3 and 6, the main body 1 is made up of a front wall 11, a top wall 12 and side walls 13, 13 each having a required thickness, and is formed into a rectangle in a plan view with a size suitable for the blade B, which is about 23 mm high (at the longest part), 18 mm wide and 18 mm deep. A clamping portion 11a is provided in the upper half of the front wall 11, and a U-shaped recessed portion 11b with a depth of about 1 mm is formed downward from the center of the upper end. In addition, a curved downward slope is provided from the tip to the rear end of the outer surface of the top wall 12 from a design perspective, and openings 13a, 13b (see Figure 4) are provided at the lower and rear parts of the side walls 13, 13 as rotation spaces for the lift legs 3 described later.

[0013] Furthermore, the main body 1 is provided with a linear slit 8 that penetrates the center of the front wall 11 and communicates with the inner surface 12a and the inner surfaces 13c, 13c (see FIG. 6), and a screw hole 9 is threaded from the center of the bottom 11c to between the slits 8, perpendicular to the slit 8. In addition, a plate 5, which occupies about 70% of the area of ​​the inner surface 11d, is inserted from the corner of the bottom 11c toward the back of the inner surface 11d and is provided so as to be in close contact with the inner surface 11d and engage with the magnet 4.

[0014] Furthermore, as shown in Fig. 5, the inner surface 11d has an inclination angle of 100° with the inner surface 12a being 0°, and this inner surface 11d (including the plate 5) serves as a stopper when the lift legs 3 pivotally attached to the main body 1 are raised. However, the closer the inclination angle of the inner surface 11d is to 90°, the more unstable the raised state of the lift legs 3 becomes, and the deeper the inclination angle of the inner surface 11d is beyond 100°, the more difficult it becomes to release the raised state of the lift legs 3 (to separate from the plate 5). Therefore, the raised angle of the lift legs 3 is set to about 100° to 103°. The main body 1 is molded from resin that is not affected by magnetic force, but non-magnetic metal material may also be used.

[0015] As shown in Fig. 1, the L-shaped metal fitting 2 is formed by bending a strip of steel plate about 1 mm thick into an L shape to form a clamping portion 2a that matches the contour of the clamping portion 11a in the short direction, and a U-shaped notch 2b is provided downward from the center of the upper end. In the long direction, the width gradually narrows from the bent portion to provide an insertion portion 2c with a straight width that accounts for about 2 / 3 of the total length, so that it can be slidably inserted into the slit 8. When clamping the blade B with this L-shaped metal fitting 2, the clamping portion 2a is pressed against the side portion 101 while pressing the insertion portion 2c against the lower portions of the side portions 101 and 102, and then the insertion portion 2c protruding from the lower portion of the side portion 102 is inserted into the slit 8, and the clamping portion 11a of the main body 1 is pressed against the side portion 102.

[0016] 4, the heads of the rivet shaft 104 that supports the clip 103 and the crimping rivet 105 protrude from the outside of the side portions 101 and 102 of the blade B. Therefore, the U-shaped cutout 2b is provided to prevent the tip of the head of the rivet shaft 104 from hitting against the blade B, and the U-shaped recessed portion 11b is provided to prevent the tip of the head of the crimping rivet 105 from hitting against the blade B. The U-shaped cutout 2b and the U-shaped recessed portion 11b are cut out to such an extent that the periphery of the heads of the rivet shaft 104 and the crimping rivet 105 do not come into contact with each other.

[0017] As shown in Fig. 3, the lifting legs 3 are made of thick rectangular resin plates that are not affected by magnetic force because magnets 4 are disposed thereon. The front end 3a and rear end 3b of the lifting legs 3 are formed in a semicircular shape in cross section, and a shaft through hole 3f (see Fig. 7) is provided in the center of the semicircle of the front end 3a, penetrating the side faces 3c, 3c. A stepped hole 3g is provided adjacent to the shaft through hole 3f, penetrating from the back face 3e to the front face 3d, and a magnet 4 is fitted into the stepped hole 3g, so that the attraction surface on one side and the back face 3e are provided to be approximately flat.

[0018] 7, the tip 3a of the lift leg 3 is flat, the rear end 3b is gently curved, and an elastic round bar-shaped anti-slip 20 is fitted into a U-shaped groove 3h cut into the rear end 3b, protruding about 1 / 3 downward. This anti-slip 20 is provided to prevent the lift leg 3 from sliding up the windshield surface Z while in an upright position when the wiper is started, and to prevent damage to the windshield surface Z due to strong shocks or long-term micro-vibrations. There are no limitations on the shape or mounting method of the anti-slip 20 as long as the material used for the anti-slip 20 has friction resistance and elasticity.

[0019] The side surfaces 3c, 3c of the lift leg 3 are formed so as not to rub against the inner surfaces 13c, 13c (see FIG. 6), and the core rod 22 is inserted through the bearing hole 21, the shaft through hole 3f, and the bearing hole 21 in this order, and is rotatably attached to the main body 1. At this time, when the lift leg 3 is rotated to a lying state (see FIG. 1), the back surface 3e contacts the insertion part 2c in parallel, and when the lift leg 3 is raised, the front surface 3d contacts the plate 5 in parallel. By arranging in this way, the attraction force of the magnet 4 can be effectively used. The lift leg 3 may be made of a non-magnetic metal material, and a thickness of about 5 mm is suitable. The length varies depending on the size of each member, so it is determined at the time of demonstration. The diameter of the core rod 22 is preferably about 1 mm to 1.5 mm, the length is matched to the width dimension of the main body 1, and the material is preferably stainless steel, which is resistant to rust.

[0020] The magnet 4 is a short cylindrical neodymium magnet with a diameter of about 6 mm and a thickness of about 4 / 5 of the lift leg 3. As shown in FIG. 3, the magnet 4 is fitted into the step hole 3g adjacent to the shaft through hole 3f (see FIG. 7) so that it quickly responds to the insertion part 2c. Therefore, as shown in FIG. 4, when the arm 106 moves in the direction of the arrow E at the start of the wiper, the lift leg 3 in the upright state rotates around the anti-slip 20 as a fulcrum and tilts about 45°, and the magnet 4 responds to the insertion part 2c and instantly adheres to the insertion part 2c, causing the lift leg 3 to lie down (see FIG. 1). When the lift leg 3 is in the lying down state, the blade B, which is no longer supported, is automatically returned to the windshield surface Z, and the wiper rubber X starts wiping. In this way, a lift leg flip-up means C (see FIG. 5) is provided that utilizes the attraction force of the magnet 4.

[0021] 3, the attractive surface of the magnet 4 on the front 3d side serves to attract the lift legs 3 to the plate 5 to keep the lift legs 3 in an upright position when the lift legs 3 become unstable due to shocks or slight vibrations of the vehicle. However, if the entire attractive surface on the front 3d side is attracted to the plate 5, the magnetic force will be too strong and the lift legs 3 will not easily separate from the plate 5, so the hole diameter of the step hole 3g on the front 3d side is narrowed to weaken the attractive force to the plate 5. In this way, by changing the hole diameter, the magnetic force can be adjusted appropriately to keep the lift legs 3 in an upright position and to separate them, making it possible to use the attractive surface of the magnet 4 on the front 3d side as a lift leg locking means D.

[0022] The plate 5 is a magnetic metal plate, and as shown in Fig. 6, the plate 5 is inserted into grooves 11e, 11e (dashed line portions) cut into both sides of the inner surface 11d from the corners of the bottom surface 11c toward the back of the inner surface 11d so as to be in close contact with the inner surface 11d. The plate 5 is provided so as to be engageable with the magnet 4, has an area larger than the attraction surface of the magnet 4, and is suitably about 0.3 mm to 0.5 mm thick. The plate 5 may be integrated into the main body 1.

[0023] As shown in FIG. 1, the double-sided tapes 6, 6 are cut to the same shape as the contour of the clamping portion 2a, and are attached to the clamping portion 2a and the clamping portion 11a so that they face each other, and are in close contact with the side portions 101, 102 of the blade B. The reason for using these double-sided tapes 6, 6 is that when the side portions 101, 102 of the blade B are strongly clamped, the rotation of the clip 103 is locked, and it is considered impossible to fix the main body 1 to the blade B with a strong clamping force. Therefore, when the side portions 101, 102 are clamped, the clip 103 is clamped with an appropriate pressure by the clamping portion 2a and the clamping portion 11a via the double-sided tapes 6, 6, so that the clip 103 can rotate freely and the main body 1 can be fixed, albeit temporarily. The double-sided tapes 6, 6 are suitable for having a thickness of about 0.5 mm to 1.0 mm and have cushioning properties.

[0024] As shown in Fig. 3, the set screw 7 is a hexagonal socket head screw threaded into the threaded hole 9, which appropriately clamps the blade B and presses the insertion portion 2c of the L-shaped metal fitting 2 inserted into the slit 8 against the inner surface 12a to secure it. By fixing this L-shaped metal fitting 2, the pressure contact with the double-sided tapes 6, 6 is maintained, and the main body 1 can be fixed for a long period of time. However, if the L-shaped metal fitting 2 is not fixed, the double-sided tapes 6, 6 will shift or peel off after a certain period of time, so fixing the L-shaped metal fitting 2 to the main body 1 is considered essential.

[0025] Since the blade B is a standard product, it is possible to lift the blade B within a certain range even if the lift leg 3 does not have a height adjustment function, and as shown in Figure 4, an upper limit lift position Y is set for the blade B and a demonstration is performed with the blade B of each pre-fabricated vehicle. As a result, more than 90% of the tip of the wiper rubber X is located between the upper limit lift position Y and the windshield surface Z (about 10 mm), and some of the blades B deteriorated with age have insufficient lift (less than 1 mm), but to address this, a wiper rubber performance retainer A for the lift leg 3 that is slightly longer is prepared. Therefore, even if the tip of the wiper rubber W is lifted only about 2 mm, sand and dust can pass through, and the wiping performance of the wiper rubber X can be maintained, so the object of the present invention is almost achieved.

[0026] When using the present invention configured as described above, the main body 1 is attached to the blade B, and the lift legs 3 are manually raised (for just 1 to 2 seconds) to lift the blade B. When the wiper starts, the lifted blade B is automatically returned to the windshield surface Z, and the windshield surface Z is wiped by the wiper rubber X. After that, when the driver gets off the vehicle, he or she only needs to reset (lift) the blade B that has already been wiped. [Industrial Applicability]

[0027] The present invention is suitable for trucks and work vehicles that are easily covered in dust and are not intended for high-speed travel, and for light vehicles (such as light trucks) that are used in rural areas as transportation for citizens, farmers, and forestry workers, and it can be mass-produced at low cost, making it highly applicable. [Explanation of symbols]

[0028] A Wiper rubber performance retainer 1 Main unit 11 Front wall 11a Clamping part 11b U-shaped depression 12 Top wall 13,13 Side wall 13a,13b opening 2 L-shaped bracket 2a Clamping part 2b U-shaped notch 2c Insertion section 3 Lift legs 3a Tip 3b Rear end 3c,3c side 3d front 3e back 3f shaft through hole 4. Magnets 5 Plate 6 Double-sided tape 7 Setscrew 8 Slit 9 Screw hole 20 Anti-slip 21,21 Bearing hole 22 core rod B-Blade 101 Side part 102 Side part 103 clips 104 Ripet shaft 105 Rivet 106 Arm (U-hook)

Claims

1. a main body having a front wall, a top wall, and both side walls, a clamping portion provided in an upper half of the front wall, a straight slit penetrating from a center portion to the inside, a plate being tightly attached to an inner surface of the front wall, and a screw hole provided from a lower portion of the front wall to between the slits; An L-shaped metal fitting is inserted into the slit with the short side of the belt-shaped steel plate bent into an L-shape as a clamping portion and the long side as a straight insertion portion; a lift leg that is rotatably mounted within the body, the lift leg having a front end and a rear end that are semicircular in side view, the front end having a shaft through hole that passes through the center of the semicircular front end, a magnet that is fitted into a stepped hole that is adjacent to the shaft through hole, and a non-slip mat that is fitted into a U-shaped groove that is provided at the rear end; a double-sided tape attached to face the clamping portion of the L-shaped metal fitting and the clamping portion of the front wall; A set screw that is screwed into the screw hole to fix the L-shaped metal fitting; A wiper rubber performance retainer comprising:

2. 2. The wiper rubber performance retainer according to claim 1, further comprising: a lift leg lifting means for engaging the L-shaped metal fitting with the magnet; and a lift leg locking means for engaging the magnet with the plate.

3. 3. The wiper rubber performance retainer according to claim 2, characterized in that the blade is clamped via the clamping portion of the L-shaped metal fitting and the clamping portion of the front wall via the double-sided tape as a means for fixing the main body to the blade.

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