JP2008279871A - Automobile windshield wiper both for rain and snow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a windshield wiper both for rain and snow capable of preventing snow from entering and fixing in a structure. <P>SOLUTION: This wiper consists of a flexibly bent vertebra 100, several holders 200, a blade rail 300, a covering member 400 with a hollow structure, a blade rubber 500, two caps 600 for sealing both ends of the covering member, and a clip base 700 connected to a wiper arm. The blade rail fixed in the vertebra by the holders is inserted and fixed in the hollow structure of the covering member, and the blade rubber is inserted and fixed inside the hollow and the slit 301 of the blade rail in the covering member, and both ends thereof are sealed by the caps. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a rain / snow car wiper, and is an automobile windshield wiper that is applied integrally during a snowfall in winter or in general, and it is troublesome and inconvenient to replace a snow wiper or a rain wiper during a snowy or non-snowy season. In particular, the area that receives wind is reduced by at least half compared to the operation of a known snow wiper, and the motor output power of the wiper arm is reduced accordingly, which in turn reduces fuel consumption and protects the environment. And for rain and snow car wiper that can achieve double effect of saving.

  Most commercially available windshield windscreen wipers have a structure in which the main body of a conventional lever yoke type wiper is covered with a covering member and a blade rubber is inserted and installed at the bottom. As shown in FIGS. 1 to 4, the structure of the known lever yoke snow wiper 1 is such that the secondary lever 4 is fixed on the shaft retaining portions 3 at both ends of the primary lever 2, and each end portion of the secondary lever 4 is fixed. The yokes 6 are respectively fixed to the portions of the shaft retaining portions 5, the holding portions 7 are respectively provided below the secondary levers 4 and the respective end portions of the yokes 6, and the holding portions 7 have flexibility. After sandwiching the thin blade rail 8, a hollow pipe-shaped covering member 9 having a rectangular cross section is covered from the end of the secondary lever 4 to cover the end of the other secondary lever 4. Furthermore, using two rivets 11, the clip base 10 is brought into contact with the center of the upper surface of the covering member 9 and then fixed on the primary lever 2. Finally, the blade rubber 12 is inserted into the blade rail 8 and installed. Two caps 13 are fitted into the end portions on both sides of the covering member 9 to complete (as shown in FIGS. 2 and 3).

  In the winter, before the snow season, the known lever yoke type rain wiper W must be replaced with the known lever yoke type snow wiper 1, and when the vehicle is snowed by the isolation action of the covering member 9. The snow wiper hardens and cannot adhere to the windshield so that snow particles do not get caught and accumulate in the space between the primary lever 2 and the secondary lever 4 or the yoke 6 (shown in FIG. 3) during traveling. Prevents snow from being lost. If the known rain wiper W is used without replacing with the known snow wiper 1 in the snow season, snow particles adhere to the space between the primary lever 2, the secondary lever 4 and the yoke 6. The entire wiper will harden and lose its elasticity, and it will not be possible to remove the snow on the windshield, which will have a significant impact on driving safety. For this reason, in consideration of the safety of driving in different weather during the snowy season and the non-snowy season, the driver in the snowy area will purchase a snow wiper at a separate cost and replace it with a rain wiper.

Other known lever yoke-type snow wipers, as listed in Patent Documents 1 to 6 below, are all known structures except for US Pat. No. 5,578,451 which is not a conventional frame-type snow wiper. This is a yoke-type snow wiper, which isolates ice and snow with a structure that uses a covering method. Among them, the structure shown in US Pat. Nos. 5,421,177, 5,603,856, 60,939, and 5,784,751 is different from the above-described method of isolating ice and snow by the coating, and melts the ice and snow on the wiper with a design including various heating devices. Therefore, the consumption of automobile fuel is increased by various heating devices, resulting in an increase in fuel expenditure. Furthermore, in order to place the heating device in the space of the automobile engine room, it cannot be applied without remodeling work. Not only will costs increase, but future repair costs will increase indirectly, and the overall cost will not decrease, so it will not be welcomed by consumers and will not become a mainstream product in the market.
US patent US54212177 US5603856 US60499939 US6108857 US6598258 US5787481

The various known lever yoke snow wipers described above have different drawbacks and the following common drawbacks.
1. As shown in FIGS. 3 and 5, the known lever yoke type snow wiper 1 covered with the covering member 9 can isolate the ingress of ice and snow, but the long side surface of the covering member 9 simultaneously winds during running of the vehicle. In response, the output power of the arm R of the known lever yoke type snow wiper 1 and the motor M of the link motion S receives a large resistance force due to wind pressure, which causes an increase in the power output value of the motor M and indirectly. Fuel consumption and costs increase. On the other hand, as shown in FIGS. 4 and 5, when the known lever yoke rain wiper W is used in the non-snow season, the outer periphery is not covered with the covering member 9, so that the airflow can pass between the lever yokes. The resistance force due to the wind pressure is small, the output power of the motor M is accordingly small, and fuel can be saved. That is, when the known lever yoke type snow wiper 1 is used, fuel is consumed more than the known rain wiper W, and it is more remarkable when it is used throughout the snowy season.
2. For safe driving, drivers in snowy areas have to buy snow wipes of known type every year, and there are no better alternatives, so various inconveniences derived from rain wipes and snow wiper replacement I have no choice but to put up with inconvenience.

The rain yoke not using the lever yoke by the present inventor has already obtained a patent as shown in Patent Documents 7 to 9 below, and the structure thereof is shown in FIGS. A clip base 10 is provided and fixed to the end of the wiper arm R by a clip 70. The flexible curved vertebra 20 is a long plate-shaped body made of a metal material and curved downward. The center of the upper surface is fixed to the bottom surface of the clip base 10, and several polygons are equally spaced on the plate surface. The holes 21 are provided, and several additional cavity pressure adjusting holes 22 are provided between the polygonal holes 21. The diameter of the cavity pressure adjusting holes 22 is determined so as to achieve an even distribution of pressure intensity. . The covering member 30 is a longitudinal body manufactured by integral molding with a flexible elastic material, provided with a rectangular hole 31 in the center, through which the clip base 10 passes, and as a protruding sealing end that contracts upward in the upper stage portion, The part is hollow and provided with a longitudinal groove 32 facing each other so that the longitudinal both sides of the flexible curved vertebra 20 can be fitted and installed, and stoppers 33 are respectively extended downward on both sides of the bottom surface of the lower step part. 32 (shown in the bb diagram in FIG. 6).
A plurality of holders 40 each having a polygonal convex ring 41 having the same shape as that of the polygonal hole 21 of the flexible curved vertebra 20 and having a slightly smaller hole diameter are provided at the upper stage, and two opposing clamping parts 42 are provided at the lower part thereof. Is provided to protrude. The blade rubber 50 is integrally formed of a flexible elastic material. The blade rubber 50 is provided with the longitudinal grooves 51 on both side surfaces of the upper stage portion so that the clamping portion 42 of the holder 40 is fitted and fixed. Further, a vertical bra 52 is fitted on both side surfaces between the two, and a blade portion 53 is provided on the lower stage. The cover 60 is put on the frame on the bottom side surface of the clip base 10, a rectangular hole 61 is provided in the center, and the engagement hooks 62 are provided protruding from the center of the long side bottoms on both sides.
Since the structure of the rain wiper described above does not have a lever yoke, the volume is smaller and lighter than the known lever yoke type rain wiper.
US Patent US7150066 Japanese registered utility model 3115053 Taiwan Patent M27955

  An object of the present invention is to provide a rain / snow car wiper.

  The rain / snow car wiper includes a flexible curved vertebra, several holders, a blade rail, a covering member, a blade rubber, side caps, and a clip base. Curved vertebra replaces the lever yoke member of the known lever yoke type wiper, and the cover member and two caps completely cover the flexible curved vertebra, holder and blade rail, and ice and snow are flexible curved vertebra, holder and blade rail It has a double function of snow wiper and rain wiper so that it can not infiltrate and accumulate.

  The present invention also provides a rain / snow car wiper, and a lever yoke-free design reduces the overall weight of a known lever yoke type snow wiper by not including a lever yoke in the structural parts, and allows wind pressure during vehicle travel. By reducing the receiving area, the output of the motor power that moves the arm and link motion can be saved, saving the vehicle fuel consumption and fuel expenditure, and extending the service life of the motor.

  The present invention further provides rain-and-snow car wipes, and windshield snow wipers are consumables for industrial mass products, so that producers must meet the demand of more than millions of vehicles worldwide every year. By adjusting the current molds of the existing and known lever yoke type snow wiper and lever yoke non-use rain wiper, the production cost can be greatly reduced, and the reduced production cost can be reflected in the product shipping price. Producers and consumers can benefit.

There is no need to replace rain and snow wipers. In addition, by not using the lever yoke, the overall weight is reduced as compared with the known technology, and the area receiving the wind pressure is reduced. Therefore, the power output of the wiper motor is saved, and the vehicle fuel consumption and fuel expenditure can be reduced. Waste from replacement is eliminated, contributing to environmental protection. Consumers can reduce spending, and producers can operate using conventional molds, thus reducing shipping prices.

  As shown in FIGS. 9 to 11, the rain / snow car wiper of the present invention includes a flexible curved vertebra 100 made of a metal material, has a long flat plate-like body curved downward, and a pair of plates at the center of the plate surface. Caulking holes 101 are provided, several equally spaced circular holes 102 are provided on the plate surfaces from the pair of caulking holes 101 toward both ends, and several hollow pressures are provided on the plate surface between the circular holes 102. An adjustment hole 103 is provided.

  Several holders 200 that protrude from the center of the upper surface 201 and have a hollow convex ring 202 having an outer diameter slightly smaller than the inner diameter of the circular hole 102 are fixed to the circular holes 102 of the flexible curved vertebra 100, respectively. A pair of side portions are curved downward to form a pair of opposing sandwiching portions 203.

  It is provided with a flexible flat hollow long blade rail 300 integrally injection-molded with a plastic material. A slit 301 is provided at the center of the bottom along the length direction to the hollow interior, and both side edges of the slit 301 are formed. A pair of parallel extending edges 302 is formed, and an engagement hole 303 is provided at the center of the upper surface near the end.

  The covering member 400 is a tubular hollow long body integrally formed of a flexible elastic material. The upper surface portion is a flat flat surface, and a flat connecting portion 401 having a flat surface is provided at the center of the outer peripheral edge surface. A short flat connecting portion 402 having a flat surface is provided on the outer peripheral surface close to each other, a pair of long grooves 403 along the horizontal direction are provided on both sides of the hollow inner side wall, and both side edges of the flexible curved vertebra 100 can be fitted and installed. Like that. Further, a long groove 404 that is recessed inwardly in the middle of the bottom surface of the lower step portion is formed along the length direction (shown in the dd diagram of FIG. 9).

  The blade rubber 500 is a long body integrally formed of a flexible elastic material. The blade rubber 500 is provided with a pair of parallel long grooves 501 on both side surfaces of the upper step portion, and the pair of edges 302 of the blade rail 300 are fitted therein. The long groove 501 and both sides of the upper surface continuously form a pair of parallel edges 502, and the lower step portion forms an upstanding blade 503 that gradually converges downward.

  The cap 600 is a hollow cube having an opening end 601 on the front surface and a sealing end 602 on the rear side, and the cross-sectional shape of the opening end 601 is the same as the cross-sectional shape of both ends of the covering member 400. Is slightly larger than the outer dimensions of the cross-sections at both ends of the covering member 400, and extends from the inner wall surface of the sealing end 602 toward the opening end 601 to extend the engaging hook 603 that is elastic in the horizontal direction (in FIG. 9). (shown in the ee diagram).

  The clip base 700 is installed in contact with the oblong connecting portion 401 of the covering member 400, passes through the two rivets 11 through the flat connecting portion 401, and is further inserted into the two caulking holes 101 of the flexible curved vertebra 100. Then, the flexible curved vertebra 100 is connected and fixed by caulking. The clip base 700 is fixed to the end of the wiper arm R by a clip 800 (shown in FIG. 11).

As shown in FIGS. 9 to 12, the assembly steps of the present invention are as follows.
a. The hollow convex ring 202 of each holder 200 is inserted into each circular hole 102 of the flexible curved vertebra 100 and fixed by caulking (shown in FIG. 12B).
b. The slits 301 of the blade rail 300 are directed downward, and the blade rails 300 are sequentially inserted into the holding portions 203 of the holders 200 from one end (shown in FIG. 12C).
c. First, the both edges of the flexible curved vertebra 100 are fitted into the long grooves 403 on both sides of the hollow inner surface of the covering member 400, and at the same time, the long groove 404 on the bottom surface of the lower step part is abutted with the slit 301 of the blade rail 300, When the flexible curved vertebra 100, the holder 200, and the blade rail 300 assembled in the above are covered and completely covered, the long groove 404 of the covering member 400 is bent and deformed, and the bottom of the long groove 404 is completely in the slit of the blade rail 300. The original groove is constrained by the slit 301 of the blade rail 300 and becomes smaller (shown in FIG. 12D).
d. The clip base 700 is placed on the oblong connecting portion 401 of the covering member 400, penetrates the oblong connecting portion 401 of the covering member 400 with two rivets 11, and is further inserted into the two caulking holes 101 of the flexible curved vertebra 100. Then, it is connected to the flexible curved vertebra 100 and fixed by caulking (shown in FIG. 12E).
e. Edges 502 and long grooves 501 on both sides of one end side of blade rubber 500 are butted against holding part 203 of holder 200 and deformed long groove 404, respectively, and force is applied to upright blade 503 of blade rubber 500, so that blade rubber 500 is The edge 502 is pulled so as to be inserted into the deformed long groove 404 so that the blade rubber 500 is entirely inserted into the blade rail 300 and joined (shown in FIG. 12 F and FIG. 10).
f. Finally, the open ends 601 of the two caps 600 are respectively butted against the end portions of the both end connection portions 402 of the covering member 400 and pressed toward the short connection portion 402 by applying a force to the engagement hooks on the inner wall surfaces of the two caps 600 If 603 is pushed into the engagement hole 303 of the blade rail 300 until it makes a sound, the assembly operation is completed. (Shown in FIG. 12 and FIG. 10).

  As shown in FIGS. 13 and 14, the present invention has a function of wiping rainwater, and when used during winter snowfall, the covering member 400 and the two caps 600 are completely covered and isolated from the outside. Since the snow and snow granules cannot enter and adhere anywhere between the flexible curved vertebra 100, the holder 200, and the blade rail 300, the flexible curved vertebra 100 does not harden and affects the original elastic pressure. It can be completely adhered to the automobile windshield G, and the normal function of snow removal is exhibited. According to rigorous measurement results obtained by simulating the conditions of snowfall or rainy weather when the actual object of the present invention is mounted on a vehicle, it can be applied to snowy or rainy weather by itself, and it is surely wiped off ice and snow. Or it can meet the demands of rainwater wiping. Therefore, it is not necessary for the driver in the snowy area to replace the rain wiper and the snow wiper.

  Further, as shown in FIGS. 15 and 16, the present invention uses a flat flexible curved vertebra 100 as a support bone of the wiper. However, in the known lever yoke type snow wiper 1, the primary lever 2, the secondary lever 4 and the yoke are used. 6 and so on, and the difference between the volume and weight is very large when compared with the two, and the pressure receiving area formed by the wind pressure while the vehicle is running is at least half the difference. Assuming that the pressure receiving area of the snow wiper 1 is A, the pressure receiving area of the present invention is ½ A. When calculated by the pressure formula P = F / A, the acting force received by the known lever yoke snow wiper 1 is Fg = P × Akg (shown in the gg diagram of FIG. 16), and the acting force received by the present invention is Fh = P × 1/2 Akg (shown in the hh diagram of FIG. 15). As can be seen from the calculation result, the acting force Fg> the acting force Fh. In addition, the frequency of a general rain wiper reciprocating on the windshield G is 40-50 times / minute. If it is operated for 1 hour, the total number of reciprocating operations is about 2400-3000 times / hour. When the applied force Fg or Fh is multiplied by 2400 to 3000 times / hour, the power output value necessary for the motor to use the known lever yoke type snow wiper 1 for 1 hour is known, and the power necessary for the motor of the present invention Much larger than the output value. If the traveling time is longer, the difference between the accumulated power consumption of both is further increased, which greatly reflects the fuel consumption. Furthermore, the total amount of fuel energy consumed by operating vehicles of the world's known lever yoke type snow wiper every time it snows is greater than the total amount of fuel energy consumed by the present invention. Therefore, from the above-mentioned rough estimate, the present invention contributes significantly in comparison with the known lever yoke type snow wiper 1 in terms of economy and environmental protection.

  As shown in FIGS. 17 and 18, an arc-shaped protrusion 405 that gradually converges upward on the outer peripheral surface from the oblong connecting portion 401 toward both side edges on the upper portion of the covering member 400 of the present invention. May be provided, and the airflow can be guided.

  As shown in FIGS. 19 and 20, an arc-shaped protrusion that gradually converges upward on the outer peripheral surface of the covering member 400 of the present invention from the oblong connecting portion 401 toward the one side edge. 406 may be provided to provide an airflow guiding action.

2 is an exploded schematic view of a known lever yoke snow wiper. 1 is an assembly schematic diagram of a known lever yoke snow wiper. It is aa sectional drawing of FIG. It is a three-dimensional schematic diagram of a known lever yoke rain wiper. 1 is a schematic view of using a known lever yoke rain wiper for an automobile windshield. It is a three-dimensional exploded schematic diagram of a rain wiper that does not use a lever yoke. It is a three-dimensional assembly schematic of a lever yoke non-use rain wiper. It is cc sectional drawing of FIG. 1 is a schematic diagram of a three-dimensional decomposition of the present invention. It is the solid assembly schematic of this invention. It is the solid schematic which combined this invention and the wiper arm. 2 is a schematic flow diagram of an assembly step of the present invention. 1 is a schematic cross-sectional view of the present invention elastically contacting an automobile windshield. 1 is a schematic cross-sectional view of the present invention elastically operated on an automobile windshield. 1 is a schematic view of the present invention elastically contacting an automobile windshield. 1 is a schematic view of a known lever yoke snow wiper elastically contacted with an automobile windshield. It is a three-dimensional schematic diagram of the second embodiment of the covering member of the present invention. It is a three-dimensional schematic diagram of the second embodiment of the present invention. It is a three-dimensional schematic diagram of the third embodiment of the covering member of the present invention. It is a three-dimensional schematic diagram of the third embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Well-known lever arm-type snow wiper 2 Primary lever 3 Shaft stop part 4 Secondary lever 5 Shaft stop part 6 Yoke 7 Clamping part 8 Blade rail 9 Cover member 10 Clip base 11 Rivet 12 Blade rubber 13 Cap 20 Flexible curved vertebra 21 Side hole 22 Hollow pressure adjusting hole 30 Cover member 31 Rectangular hole 32 Long groove 33 Stopper 40 Holder 41 Polygonal convex ring 42 Holding part 50 Blade rubber 51 Long groove 52 Vertibra 53 Blade part 60 Cover 61 Rectangular hole 62 Engagement hook 70 Clip DESCRIPTION OF SYMBOLS 100 Flexible curved vertebra 101 Crimp hole 102 Circular hole 103 Hollow pressure adjustment hole 201 Upper surface 202 Hollow convex ring 203 Clamping part 300 Blade rail 301 Slit 302 Edge 303 Engagement hole 400 Cover member 401 Long flat connection part 402 Short flat connection part 4 3 long groove 404 long groove 405 arc-shaped protrusion 406 arc-shaped protrusion 500 blade rubber 501 long groove 502 edge 503 upright blade 600 cap 601 opening end 602 sealing end 603 engaging hook 700 clip base 800 clip G automobile windshield M motor R arm S Link motion W Known lever yoke rain wiper

Claims (3)

Flexible curved vertebra, several holders, blade rail, covering member, blade rubber,
It consists of two caps and a clip base,
The flexible curved vertebra is a long flat plate body made of a metal material and curved downward, and a pair of caulking holes are provided at the center of the plate surface, and the plate surfaces from the pair of caulking holes toward both ends are equally spaced from each other. Provided with several circular holes, several hollow pressure adjusting holes penetrating the plate surface between the circular holes,
The holder is in contact with each circular hole of the flexible curved vertebra so that it protrudes from the center of the upper surface and is provided with a hollow convex ring whose outer diameter is slightly smaller than the inner diameter of the circular hole. Bend downward to form a pair of opposing clamping parts,
The blade rail is a flexible flat hollow long body made of plastic and integrally injection-molded, and is provided with a slit along the length direction leading to the hollow interior at the center of the bottom surface, and a pair of edges on both side edges of the slit. Forming parallel edges, and providing an engagement hole at the center of the upper surface of the end close to both ends,
The covering member is a tubular hollow long body manufactured by integral molding with a flexible elastic material, the upper portion is a flat flat surface, a long flat connecting portion having a flat surface is provided at the center of the outer peripheral edge, and the outer peripheral edge close to both ends. A flat short connecting part is provided on the surface, and a long groove is provided in the horizontal direction so as to face the upper part of the hollow internal measurement surface so that both side edges of the flexible curved vertebra can be fitted and installed. The part is recessed inward to form a long groove along the length direction,
The blade rubber is a long body integrally molded with a flexible elastic material, provided with parallel long grooves facing each other on both sides of the upper step portion so that the pair of edges of the blade rail can be fitted and sandwiched, and The pair of long grooves and both side surfaces of the upper surface continuously form a pair of parallel edges on the outside, and the lower step portion forms an upright blade having a shape gradually converged downward,
The two caps are hollow cubes having an open end on the front surface and a sealed end on the back side, and the cross-sectional shape of the open end is the same as the cross-sectional shape of both ends of the covering member, and the inner dimension is the covering member Slightly larger than the outer dimensions of the cross-section of both ends, provided with an engagement hook that extends horizontally from the inner wall surface of the inner sealing end toward the opening end and has elasticity,
The clip base is installed in contact with the oblong connecting portion of the covering member, and is connected to the flexible curved vertebra with two rivets and fixed by caulking, and the clip base is fixed to the end of the wiper arm with the clip. A rain / snow car wiper characterized by comprising:   The rain / snow automobile wiper according to claim 1, wherein arc-shaped protrusions that gradually converge upward are provided on outer peripheral surfaces on both sides of the oblong connecting portion located in the upper step portion of the covering member.   2. The rain / snow car wiper according to claim 1, wherein an arc-shaped protrusion that gradually converges upward is provided on one outer peripheral surface of the oblong connecting portion located in the upper step of the covering member.

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