US20060282972A1 - Windshield wiper structure for vehicles - Google Patents
Windshield wiper structure for vehicles Download PDFInfo
- Publication number
- US20060282972A1 US20060282972A1 US11/152,166 US15216605A US2006282972A1 US 20060282972 A1 US20060282972 A1 US 20060282972A1 US 15216605 A US15216605 A US 15216605A US 2006282972 A1 US2006282972 A1 US 2006282972A1
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- US
- United States
- Prior art keywords
- stripe
- strip
- bow
- scraper
- elastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S1/3806—Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
- B60S1/381—Spoilers mounted on the squeegee or on the vertebra
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S1/3848—Flat-type wiper blade, i.e. without harness
- B60S1/3886—End caps
- B60S1/3887—Mounting of end caps
- B60S1/3889—Mounting of end caps cooperating with holes in the vertebra
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S1/3806—Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
- B60S1/3808—Spoiler integral with the squeegee
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S1/3848—Flat-type wiper blade, i.e. without harness
- B60S1/3874—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra
- B60S1/3875—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra rectangular section
- B60S1/3881—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra rectangular section in additional element, e.g. spoiler
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
- B60S2001/3817—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support
- B60S2001/382—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support the backing strip being an essentially planar reinforcing strip, e.g. vertebra
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
- B60S2001/3822—Means of supporting or holding the squeegee or blade rubber characterised by additional means to prevent longitudinal sliding of squeegee in support, e.g. clips
Definitions
- the present invention relates to a windshield wiper structure for vehicles, More particularly the contact between the scraper of windshield wiper and the windshield glass is holistically even tight uniformly and hermetic closely to enhance the scraping effect of windshield wiper as well as the effect of no noise in scraping action. And it can simplify the assembly process and reduce the process time in production due to simple structure and fewer parts so that decreasing the waste in wearing and damage of trivial parts. Hence, it has much more effects in economy and environment protection.
- the structure of the conventional first kind and second kind of windshield wiper comprises a master wiper 2 , in which having a first holding arm 4 being jointed with each articulation 3 on both ends respectively. And, a second holding arm 6 is jointed on the articulation 5 of each inwards end of said both first holding a 4 respectively.
- a clamping device 7 is disposed on each outwards end of said both first holding arm 4 and both ends of said both second holding arm 6 respectively.
- a strip scraper 8 being made of flexible elastic material is clipped by means of these said clamping devices 7 .
- a metal elastic stripe 801 (as shown in FIG.
- the wiper comprises a truss saddle 10 , a stripe main body 20 , a pair of bow elastic stripes 22 , and two end ferrule caps 23 .
- said stripe main body 20 is firmly clipped by said truss saddle 10 and is unitary-molded made of flexible elastic material.
- There are multiple strip fluted grooves 21 being formed on both sides of said stripe main body 20 with a unitary-molded (scraper edge 24 at its undermost side).
- said pair of bow elastic stripes 22 are made of metal and will be inserted into the uppermost pair of said strip fluted grooves 21 to serve as splint. Furthermore, on the joint of both ends of said stripe main body 20 and the both ends of said both pair of bow elastic stripes 22 is securely sleeved by an end ferrule caps 23 respectively.
- said scraper edge 24 which being unitary-molded made of flexible elastic material is splinted with said metal bow elastic stripes 22 on its both sides to bend itself.
- said both bow elastic stripes 22 bear different push and pull forces everywhere due to exchange of along or against motion direction. So that said whole wiper is tilted and bent distorted in consequence of action of squeeze and extract on said strip fluted groove 21 (as shown in FIG. 9 ). Contrarily, it decreases the lifetime of said stripe main body 20 without practicality.
- said end ferrule caps 23 is to sleeve and buckle the snap-on notch 221 on both ends of said both bow elastic stripes 22 . It can be easily fallen off unexpectedly in consequence of being deformed in aforementioned motion. Consequently, the separation of said bow elastic stripes 22 from said stripe main body 20 will happen to disable said wiper function in uselessness.
- a bow elastic stripe 40 which being made by metal bow stripe, is securely jointed with the base side of said truss saddle 30 at its central upper side; On its surface, some square holes 41 are evenly punched; Near its both ends, a snap-on bole 42 is created respectively;
- some detachable clamping devices 60 are securely buckled in each said square hole 41 respectively on said bow elastic stripe 40 ;
- a pair of protruding lugs 61 are created in cross sectional shape of trapezoid;
- a elastic barb 62 is created;
- a pair of jaw-like paws 63 is built;
- a spline buckle plate 71 is built internally; At each free end of said spline buckle plate 71 , a snap-on lug 72 is created to be buckled in said snap-on bole 42 (as shown in the sectional view taken along the direction indicated by a line B-B as shown in FIG. 10 .); And
- a strip scraper 80 is unitary-molded made of flexible elastic material; On its upper section, a pair of strip fluted grooves 81 are created at its both sides in order to be securely caught and inserted by said jaw-like paw 63 of said detachable clamping device 60 ; Between said strip fluted groove 81 and its top side, a pair of metal elastic stripes 82 is mounted at both sides; A pair of elastic splint rods 84 are inserted into said strip fluted grooves 81 respectively; On its lower section, a scraper edge 83 .
- Said fourth kind of conventional windshield wiper is contrived by combining said conventional first kind, second kind and third kind of windshield wipers. Its advantage in replacing wiper is need to replace worn strip scraper 80 only instead of replacing whole integral wiper while said conventional first kind, second kind and third kind of windshield wipers have to replace whole integral wiper if any part being worn.
- said fourth kind of conventional windshield wiper possesses advantages in expanses of environmental protection and replacing new product by consumers. It is also better in serving lifetime and scraping effect. However, it still exists some drawbacks as below.
- said truss saddle 30 serves as force-acting point in the pressing contact of bow elastic stripe 40 with windshield G. So that the pressure in both end points of said strip scraper 80 , which being at the bottom side of said bow elastic stripe 40 , is strongest comparing with every other points. Thus, neither the scraping effect can be maintained nor the internal car tranquility can be sustained due to noise of friction with windshield G in consequence of every points do not own even pressure distribution and closed tight contact with surface of said windshield G.
- said suspending bracket stripe 52 which being downwards formed in the internal top center of said stripe main bodies 50 , is to serve as stopper. Its function is to block said elastic barb 62 , which being in said protruding lug 61 of said detachable clamping device 60 , from bending inwards. Thus, it prevents said stripe main bodies 50 from dropping off from said square hole 41 of said bow elastic stripe 40 .
- its material should be non-elastic hard material instead of same flexible elastic material as that used by said stripe main bodies 50 . Therefore, it not only causes extra expense in extruding process of mold but also increases the difficulty in production process, which also relatively resulting in elevation of production cost.
- the windshield wiper in the market should be passed by erosion-resistant weather test to make sure it can stand being battered by the wind and the rain in practical car-driving usage.
- All said detachable clamping devices 60 in said fourth kind of conventional windshield wiper are directly exposed without any weather-stripping protective design such that being easily beaten by different degree of the wind and the rain during practical car-driving usage.
- it causes the increase of damage rate in consequence of bad erosion-resistant capability.
- its service lifetime is indirectly decreased and resulting in drawback of need to replace it early.
- the primary objective of the present invention is to provide a windshield wiper structure for vehicles, which comprises a truss saddle, a bow elastic stripe, a cover body, some detachable clamping devices, a strip scraper and a frame cover; wherein, some hollow pressure adjusting vents are created on said bow elastic stripe in order to keep nearly same elasticity at every sections of said bow elastic stripe. Hence, it can equilibrate force in every portions of whole wiper such that achieving in adjust-effect of even pressure distribution.
- the contact between said strip scraper and the windshield glass is holistically even tight uniformly and hermetic closely to enhance the scraping effect of windshield wiper as well as the effect of prolonging service-lifetime with reducing expense in association with decreasing of replacing new product frequency in consequence of such even pressure distribution.
- Another object of the present invention is to provide a windshield wiper structure for vehicles, wherein, said cover body is unitary-molded such that freeing from directionality as sleeve it with said bow elastic stripe up to completely matched. Hence, it substantially simplifies assembly process and decreases man-hour in production. Moreover, a pair of weather-stripping fasciae are contrived at bottom section of said cover body to prevent all detachable clamping devices from being battered by the wind and the rain as well as weathering such that prolonging its service-lifetime in consequence of promoting erosion-resistant capability.
- the other object of the present invention is to provide a windshield wiper structure for vehicles, wherein, all said detachable clamping devices are directly riveted on said bow elastic stripe without any extra bracing design such that simplifying the structure of said cover body.
- total production cost can be substantially decreased in consequence of simplifying the production process.
- FIG. 1 shows a schematic view of the first kind of conventional windshield wiper.
- FIG. 2 shows a schematic view of the second kind of conventional windshield wiper.
- FIG. 3 is a exploded view of the FIG. 2 in partially.
- FIG. 4 is a top view of the second kind of conventional windshield wiper.
- FIG. 5 is an exploded perspective view of the third kind of conventional windshield wiper.
- FIG. 6 is a perspective view of the third kind of conventional windshield wiper.
- FIG. 7 is a schematic view of the third kind of conventional windshield wiper.
- FIG. 8 is the functional view of the third kind of conventional windshield wiper in acting.
- FIG. 9 shows a sectional view taken along the direction indicated by a line A-A as shown in FIG. 8 .
- FIG. 10 is an exploded perspective view of the fourth kind of conventional windshield wiper.
- FIG. 11 is the functional view of the fourth kind of conventional windshield wiper in acting.
- FIG. 12 shows an enlarged sectional schematic view of the fourth kind of conventional windshield wiper in assembly process.
- FIG. 13 is an exploded perspective view according to the preferred embodiment of the present invention.
- FIG. 14 is a perspective view according to the preferred embodiment of the present invention in assembly.
- FIG. 15 is a perspective view according to the preferred embodiment of the present invention.
- FIG. 16 shows a sectional view taken along the direction indicated by a line F-F as shown in FIG. 15 .
- FIG. 17 is the functional view according to the preferred embodiment of the present invention in acting.
- FIG. 18 shows a sectional view taken along the direction indicated by a line H-H as shown in FIG. 17 .
- a windshield wiper structure for vehicles comprises a truss saddle 100 , a bow elastic stripe 200 , a cover body 300 , a plurality of detachable clamping devices 400 , a strip scraper 500 and a frame cover 600 ; wherein the truss saddle 100 is fixed on one end of the wiper arm (not shown in the figures) by means of wiper connector 700 ; the bow elastic stripe 200 , which being made of metal in stripe of bow-shaped bending downward, and tightly affixed on the bottom side of the truss saddle 100 with a bottom surface of the truss saddle 100 abutting to a central top surface of the bow elastic stripe 200 .
- the bow elastic stripe 200 has a plurality of polygon holes 201 by punched on its body with equidistantly, and has a plurality of hollow pressure adjusting vents 202 between in said polygon holes 201 which having a aperture size being determined in coordination with even pressure distribution;
- the cover body 300 is unitary-molded made of flexible elastic material, and is provided at the center with a hollow opening 301 which has a aperture size bigger than the truss saddle 100 but smaller than the frame cover 600 .
- the upper portion of said cover body 300 is formed of an upward tapered shape, and middle portion has a pair of strip fluted grooves 302 with a dovetail shape which is holding both sides of said bow elastic stripe 200 , wherein said bottom portion has a pair of weather-stripping fasciae 303 are downward contrived at both sides in connection with said strip fluted grooves 302 ;
- the detachable clamping device 400 has a polygon protruding ring 401 protruded at a top end thereof for fitting into the polygon hole 201 of the bow elastic stripe 200 , and has a pair of jaw-like paw 402 protruded at a bottom end thereof for claiming the strip scraper 500 .
- the strip scraper 500 is unitary-molded made of flexible elastic material, and has a pair of strip fluted grooves 501 which is concaved at its both sides of the upper portion for insert into the jaw-like paw 402 of the detachable clamping device 400 , wherein said strip fluted groove 501 further provided with two metal elastic splint rods 502 and a scraper edge 503 in connection with said both sides and lower portion of the strip scraper 500 respectively.
- the frame cover 600 serves as sheath to accommodate said truss saddle 100 and is provided at the center with a rectangular hole 601 , and built at the central bottom of both sides with two snap-on nose 602 thereof respectively.
- the assembly process of the present invention is as below.
Abstract
A windshield wiper structure for vehicles, comprises a truss saddle, a bow elastic stripe, a cover body, some detachable clamping devices, a strip scraper and a frame cover; wherein, some hollow pressure adjusting vents are created on said bow elastic stripe in order to keep nearly same elasticity at every sections of said bow elastic stripe. Hence, it can equilibrate force in every portions of whole wiper such that achieving in adjust-effect of even pressure distribution. Then, the contact between said strip scraper and the windshield glass is holistically even tight uniformly and hermetic closely to enhance the scraping effect of windshield wiper as well as the effect of prolonging service-lifetime with reducing expense in association with decreasing of replacing new product frequency in consequence of such even pressure distribution. Thus, it has more effect in economy and environmental protection.
Description
- The present invention relates to a windshield wiper structure for vehicles, More particularly the contact between the scraper of windshield wiper and the windshield glass is holistically even tight uniformly and hermetic closely to enhance the scraping effect of windshield wiper as well as the effect of no noise in scraping action. And it can simplify the assembly process and reduce the process time in production due to simple structure and fewer parts so that decreasing the waste in wearing and damage of trivial parts. Hence, it has much more effects in economy and environment protection.
- Referring to
FIG. 1 toFIG. 3 , the structure of the conventional first kind and second kind of windshield wiper comprises amaster wiper 2, in which having afirst holding arm 4 being jointed with eacharticulation 3 on both ends respectively. And, asecond holding arm 6 is jointed on thearticulation 5 of each inwards end of said both first holding a 4 respectively. Aclamping device 7 is disposed on each outwards end of said bothfirst holding arm 4 and both ends of said bothsecond holding arm 6 respectively. Astrip scraper 8 being made of flexible elastic material is clipped by means of these saidclamping devices 7. And, a metal elastic stripe 801 (as shown inFIG. 3 ) is imbedded in order to brace the holding uphold on both sides of saidstrip scraper 8. Furthermore, on the joint of both ends of saidstrip scraper 8 and the outwards end of said bothfirst holding arm 4 is securely sleeved by anend ferrule cap 9 respectively as shown inFIG. 1 . - When said
strip scraper 8 of both aforementioned conventional windshield wiper sweeps back and forth on the windshield G, a gap is created in saidarticulations 3, which being the joint of saidmaster wiper arm 2 and said both first holdingarms 4, and saidarticulations 5, which being the joint of each inwards end of said both first holdingarms 4 and said both second holdingarms 6. And, the more frequency by the wiper sweeps, the more gradually enlarged the gap will be. Hence, the linearity among saidmaster wiper arm 2, said first holdingarms 4 and said second holdingarms 6 eventually loses alignment (as shown inFIG. 4 ). Consequently, saidstrip scraper 8 being bent indirectly is disabled to synchronously sweep in linear alignment and losing the effect of clearing off the extraneous impurities or dust Thus, the turnover of replacing new product is increased. Furthermore, the way of replacement must be whole integral wiper instead of part by part individually. And, the discarded old products become garbage and pollute the environment. - Therefore, the businessmen bring the third kind of conventional windshield wiper (also called no-holding-arm wiper) into the market recently. As shown in
FIG. 5 toFIG. 9 , the wiper comprises atruss saddle 10, a stripemain body 20, a pair of bowelastic stripes 22, and twoend ferrule caps 23. Wherein said stripemain body 20 is firmly clipped by saidtruss saddle 10 and is unitary-molded made of flexible elastic material. There are multiple strip flutedgrooves 21 being formed on both sides of said stripemain body 20 with a unitary-molded (scraper edge 24 at its undermost side). And, said pair of bowelastic stripes 22 are made of metal and will be inserted into the uppermost pair of said strip flutedgrooves 21 to serve as splint. Furthermore, on the joint of both ends of said stripemain body 20 and the both ends of said both pair of bowelastic stripes 22 is securely sleeved by anend ferrule caps 23 respectively. - Referring to
FIG. 7 toFIG. 9 , when said third conventional windshield wiper sweeps back and forth on the windshield G in tight pressure contact, saidtruss saddle 10 becomes the prime force-acting point (as shown inFIG. 8 ). Thus, the scraping pressure of the said wiper on said windshield G gradually increases lengthwise from saidcentral truss saddle 10 toward both ends (as shown of black arrow inFIG. 8 ). Hence, the pressure of every contact point in saidscraper edge 24 is not even distributed uniformly and not tightly contact with said windshield G. Consequently, the scraping effect of said wiper is diminished. Either, the noise due to the friction with said windshield G increases to affect the internal tranquility in the car contrarily. - Besides, said
scraper edge 24, which being unitary-molded made of flexible elastic material is splinted with said metal bowelastic stripes 22 on its both sides to bend itself. When said wiper sweeps back and forth, said both bowelastic stripes 22 bear different push and pull forces everywhere due to exchange of along or against motion direction. So that said whole wiper is tilted and bent distorted in consequence of action of squeeze and extract on said strip fluted groove 21 (as shown inFIG. 9 ). Contrarily, it decreases the lifetime of said stripemain body 20 without practicality. Moreover, saidend ferrule caps 23 is to sleeve and buckle the snap-onnotch 221 on both ends of said both bowelastic stripes 22. It can be easily fallen off unexpectedly in consequence of being deformed in aforementioned motion. Consequently, the separation of said bowelastic stripes 22 from said stripemain body 20 will happen to disable said wiper function in uselessness. - Accordingly, some other businessmen introduces the fourth kind of no-holding-arm wiper as shown in
FIG. 10 toFIG. 12 , which comprises: - a
truss saddle 30; - a bow
elastic stripe 40, which being made by metal bow stripe, is securely jointed with the base side of saidtruss saddle 30 at its central upper side; On its surface, somesquare holes 41 are evenly punched; Near its both ends, a snap-onbole 42 is created respectively; - two stripe
main body 50, which being unitary-molded made of flexible elastic material, is securely caught on said bowelastic stripe 40 at both sides of saidtruss saddle 30; At two sides of its bottom, aindented grapple stripe 51 is created correspondingly; At the internal top center of said indentedgrapple stripe 51, a cone-shaped suspendingbracket stripe 52 is built - some
detachable clamping devices 60 are securely buckled in each saidsquare hole 41 respectively on said bowelastic stripe 40; On its upper section, a pair of protrudinglugs 61 are created in cross sectional shape of trapezoid; On the center in each of said both protrudinglug 61, aelastic barb 62 is created; On its lower section, a pair of jaw-like paws 63 is built; - two
end ferrule caps 70 securely sleeves and buckles in each said snap-onhole 42 on both ends of said bowelastic stripe 40; On the center of its bottom, a spline buckle plate 71 is built internally; At each free end of said spline buckle plate 71, a snap-onlug 72 is created to be buckled in said snap-on bole 42 (as shown in the sectional view taken along the direction indicated by a line B-B as shown inFIG. 10 .); And - a
strip scraper 80 is unitary-molded made of flexible elastic material; On its upper section, a pair of strip flutedgrooves 81 are created at its both sides in order to be securely caught and inserted by said jaw-like paw 63 of saiddetachable clamping device 60; Between said strip flutedgroove 81 and its top side, a pair of metalelastic stripes 82 is mounted at both sides; A pair ofelastic splint rods 84 are inserted into said strip flutedgrooves 81 respectively; On its lower section, ascraper edge 83. - Said fourth kind of conventional windshield wiper is contrived by combining said conventional first kind, second kind and third kind of windshield wipers. Its advantage in replacing wiper is need to replace
worn strip scraper 80 only instead of replacing whole integral wiper while said conventional first kind, second kind and third kind of windshield wipers have to replace whole integral wiper if any part being worn. In comparing one another, said fourth kind of conventional windshield wiper possesses advantages in expanses of environmental protection and replacing new product by consumers. It is also better in serving lifetime and scraping effect. However, it still exists some drawbacks as below. - 1. Referring to
FIG. 11 , just like said third conventional windshield wiper, saidtruss saddle 30 serves as force-acting point in the pressing contact of bowelastic stripe 40 with windshield G. So that the pressure in both end points of saidstrip scraper 80, which being at the bottom side of said bowelastic stripe 40, is strongest comparing with every other points. Thus, neither the scraping effect can be maintained nor the internal car tranquility can be sustained due to noise of friction with windshield G in consequence of every points do not own even pressure distribution and closed tight contact with surface of said windshield G. - 2. Referring to
FIG. 12 andFIG. 10 , the process steps of assembly are illustrated as below: - a. One by one, insert and buckle said protruding
lug 61 of saiddetachable clamping device 60 into saidsquare bole 41 of said bow elastic stripe 40 (as shown in the section A of theFIG. 12 ). - b. Push said
detachable clamping device 60 from the bottom of said jaw-like paw 63 such that saidelastic barb 62 being pressed and bent inwards (as shown in the section B of theFIG. 12 ). Continue to push it up to saidelastic barb 62 passing through saidsquare bole 41 and bouncing to its original status as well as being buckled in said square hole 41 (as shown in the section C of theFIG. 12 ). - c. Guide and sleeve said two stripe
main bodies 50 into bowelastic stripe 40. During this process, careful to keep said indentedgrapple stripes 51 and suspendingbracket stripe 52 dovetail with both side of said bowelastic stripe 40. And, to slide and sleeve then into said protrudinglugs 61 of said detachable clamping device 60 (as shown in the section D of theFIG. 12 ). - d. After said two stripe
main bodies 50 have been wholly sleeved with said bowelastic stripe 40, put and buckle saidend ferrule cap 70 at both ends of said bowelastic stripe 40. So that said snap-onlugs 72 at the bottom side of saidend ferrule cap 70 are completely inserted and buckled into said snap-onholes 42 of said bow elastic stripe 40 (as shown in the section E of theFIG. 12 ). - e. Finally, put and insert said
strip scraper 80 into said jaw-like paw 63, which being the lower section of saiddetachable clamping device 60. And, put and insert said twoelastic splint rods 84 into said strip scraper X0. All assembly process finishes here (as shown in the section F of theFIG. 12 ). - It is learnt from the above assembly process that the two stripe
main bodies 50 must carefully with directionality in assembly and avoid to caused an error place by an incorrect direction. Therefore, the man-hour in assembly of themain bodies 50 is much more due to directionality in step c. - 3. Referring to the section E of the
FIG. 12 and the sectional view taken along a line C-C of theFIG. 10 , said suspendingbracket stripe 52, which being downwards formed in the internal top center of said stripemain bodies 50, is to serve as stopper. Its function is to block saidelastic barb 62, which being in said protrudinglug 61 of saiddetachable clamping device 60, from bending inwards. Thus, it prevents said stripemain bodies 50 from dropping off from saidsquare hole 41 of said bowelastic stripe 40. Hence, its material should be non-elastic hard material instead of same flexible elastic material as that used by said stripemain bodies 50. Therefore, it not only causes extra expense in extruding process of mold but also increases the difficulty in production process, which also relatively resulting in elevation of production cost. - 4. Usually, the windshield wiper in the market should be passed by erosion-resistant weather test to make sure it can stand being battered by the wind and the rain in practical car-driving usage. All said
detachable clamping devices 60 in said fourth kind of conventional windshield wiper are directly exposed without any weather-stripping protective design such that being easily beaten by different degree of the wind and the rain during practical car-driving usage. Hence, it causes the increase of damage rate in consequence of bad erosion-resistant capability. Thus, its service lifetime is indirectly decreased and resulting in drawback of need to replace it early. - The primary objective of the present invention is to provide a windshield wiper structure for vehicles, which comprises a truss saddle, a bow elastic stripe, a cover body, some detachable clamping devices, a strip scraper and a frame cover; wherein, some hollow pressure adjusting vents are created on said bow elastic stripe in order to keep nearly same elasticity at every sections of said bow elastic stripe. Hence, it can equilibrate force in every portions of whole wiper such that achieving in adjust-effect of even pressure distribution. Thus, the contact between said strip scraper and the windshield glass is holistically even tight uniformly and hermetic closely to enhance the scraping effect of windshield wiper as well as the effect of prolonging service-lifetime with reducing expense in association with decreasing of replacing new product frequency in consequence of such even pressure distribution.
- Another object of the present invention is to provide a windshield wiper structure for vehicles, wherein, said cover body is unitary-molded such that freeing from directionality as sleeve it with said bow elastic stripe up to completely matched. Hence, it substantially simplifies assembly process and decreases man-hour in production. Moreover, a pair of weather-stripping fasciae are contrived at bottom section of said cover body to prevent all detachable clamping devices from being battered by the wind and the rain as well as weathering such that prolonging its service-lifetime in consequence of promoting erosion-resistant capability.
- The other object of the present invention is to provide a windshield wiper structure for vehicles, wherein, all said detachable clamping devices are directly riveted on said bow elastic stripe without any extra bracing design such that simplifying the structure of said cover body. Thus, total production cost can be substantially decreased in consequence of simplifying the production process.
- The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of the present invention with reference to the accompanying drawings.
-
FIG. 1 shows a schematic view of the first kind of conventional windshield wiper. -
FIG. 2 shows a schematic view of the second kind of conventional windshield wiper. -
FIG. 3 is a exploded view of theFIG. 2 in partially. -
FIG. 4 is a top view of the second kind of conventional windshield wiper. -
FIG. 5 is an exploded perspective view of the third kind of conventional windshield wiper. -
FIG. 6 is a perspective view of the third kind of conventional windshield wiper. -
FIG. 7 is a schematic view of the third kind of conventional windshield wiper. -
FIG. 8 is the functional view of the third kind of conventional windshield wiper in acting. -
FIG. 9 shows a sectional view taken along the direction indicated by a line A-A as shown inFIG. 8 . -
FIG. 10 is an exploded perspective view of the fourth kind of conventional windshield wiper. -
FIG. 11 is the functional view of the fourth kind of conventional windshield wiper in acting. -
FIG. 12 shows an enlarged sectional schematic view of the fourth kind of conventional windshield wiper in assembly process. -
FIG. 13 is an exploded perspective view according to the preferred embodiment of the present invention. -
FIG. 14 is a perspective view according to the preferred embodiment of the present invention in assembly. -
FIG. 15 is a perspective view according to the preferred embodiment of the present invention. -
FIG. 16 shows a sectional view taken along the direction indicated by a line F-F as shown inFIG. 15 . -
FIG. 17 is the functional view according to the preferred embodiment of the present invention in acting. -
FIG. 18 shows a sectional view taken along the direction indicated by a line H-H as shown inFIG. 17 . - Referring to
FIGS. 13, 14 , 15, 16 and 17, a windshield wiper structure for vehicles according to a preferred embodiment of the present invention comprises atruss saddle 100, a bowelastic stripe 200, acover body 300, a plurality ofdetachable clamping devices 400, astrip scraper 500 and aframe cover 600; wherein thetruss saddle 100 is fixed on one end of the wiper arm (not shown in the figures) by means ofwiper connector 700; the bowelastic stripe 200, which being made of metal in stripe of bow-shaped bending downward, and tightly affixed on the bottom side of thetruss saddle 100 with a bottom surface of thetruss saddle 100 abutting to a central top surface of the bowelastic stripe 200. Referring toFIG. 13 , the bowelastic stripe 200 has a plurality ofpolygon holes 201 by punched on its body with equidistantly, and has a plurality of hollowpressure adjusting vents 202 between in said polygon holes 201 which having a aperture size being determined in coordination with even pressure distribution; - Referring to
FIGS. 13 and 14 , thecover body 300 is unitary-molded made of flexible elastic material, and is provided at the center with ahollow opening 301 which has a aperture size bigger than thetruss saddle 100 but smaller than theframe cover 600. As shown in an enlarged sectional view taken along the direction indicated by a line E-E ofFIG. 13 , the upper portion of saidcover body 300 is formed of an upward tapered shape, and middle portion has a pair of strip flutedgrooves 302 with a dovetail shape which is holding both sides of said bowelastic stripe 200, wherein said bottom portion has a pair of weather-strippingfasciae 303 are downward contrived at both sides in connection with said strip flutedgrooves 302; - Referring to
FIG. 13 , thedetachable clamping device 400 has apolygon protruding ring 401 protruded at a top end thereof for fitting into thepolygon hole 201 of the bowelastic stripe 200, and has a pair of jaw-like paw 402 protruded at a bottom end thereof for claiming thestrip scraper 500. - Referring to
FIGS. 13 and 14 , thestrip scraper 500 is unitary-molded made of flexible elastic material, and has a pair of strip flutedgrooves 501 which is concaved at its both sides of the upper portion for insert into the jaw-like paw 402 of thedetachable clamping device 400, wherein said strip flutedgroove 501 further provided with two metalelastic splint rods 502 and ascraper edge 503 in connection with said both sides and lower portion of thestrip scraper 500 respectively. - Referring to
FIGS. 13 and 14 , theframe cover 600 serves as sheath to accommodate saidtruss saddle 100 and is provided at the center with arectangular hole 601, and built at the central bottom of both sides with two snap-onnose 602 thereof respectively. - Referring to
FIG. 14 toFIG. 18 , the assembly process of the present invention is as below. - a. Insert said
polygon lug 401 of each saiddetachable clamping device 400 into each corresponding saidpolygon hole 201 on said bowelastic stripe 200 and securely rivet them respectively. Then, solder the bottom side of saidtruss saddle 100 with central top side of said bowelastic stripe 200. - b. Take any end of said
cover body 300 to sleeve into any end of said bowelastic stripe 200. By means of opening up said weather-strippingfascia 303 at the bottom portion of saidcover body 300, it can be push inward inch by inch up to completely sheath on said bow elastic stripe 200 (as shown inFIG. 14 ). - c. Insert said
strip scraper 500 into said jaw-like paw 402 at the lower portion of each saiddetachable clamping device 400 progressively. Then, pass saidframe cover 600 throughtruss saddle 100 until said snap-onnose 602 snap-on and being buckled at the bottom of both sides in said bowelastic stripe 200. Thus, the assembly process of the present invention is finished here (as shown inFIG. 15 andFIG. 16 ). - It is learnt from above assembly process that the man-hour in assembly of the present invention is very few due to non-directionality of
cover body 300 in step b. - Moreover, referring to
FIG. 17 andFIG. 18 , under the action of said hollowpressure adjusting vent 202 punched on said bowelastic stripe 200, the pressure in every section of saidstrip scraper 500 is even distributed in equal pressure after it contacts with said windshield G. (as shown of black arrow inFIG. 17 ). Thus, it not only allow saidstrip scraper 500 holistically even tight contact uniformly with the bow surface of said windshield G (as shown inFIG. 18 ), but also enhance the scraping effect as well as reducing friction noise with said windshield G without affecting internal tranquility of driving car.
Claims (1)
1. A windshield wiper structure for vehicles, comprising a truss saddle, a bow elastic stripe, a cover body, a plurality of detachable clamping devices, a strip scraper, and a frame cover;
wherein said truss saddle is fixed on one end of the wiper arm by means of a wiper connector;
wherein the bow elastic stripe is made of metal, has a bow shape, bends downward, and is tightly affixed to a bottom surface on a bottom side of said truss saddle and abutting a central tope surface of said bow elastic stripe;
wherein said bow elastic stripe has a plurality of polygon holes punched into its body equidistantly, and has a plurality of hollow pressure adjusting vents between said polygon holes which have an aperture size determined in coordination with even pressure distribution;
wherein said cover body is unitarily-molded of a flexible elastic material, and Is provided at the center with a hollow opening which has an aperture size bigger than said truss saddle but smaller than said frame cover;
wherein the upper portion of said cover body is formed of an upward tapered shape, a middle portion of said cover body has a pair of strip fluted grooves with a dovetail shape which holds both sides of said blow elastic stripe, and a bottom portion of said cover body has a pari of weather-stripping fasciae downwardly extending at both sides in connection with said strip fluted grooves;
wherein each of said plurality of detachable clamping devices has a polygonal protruding ring protruded at a top end of the respective clamping device for fitting into the polygon hole of said bow elastic stripe, and has a pair of jaw-like paws protruded at a bottom end thereof for clamping said strip scraper;
wherein said strip scraper is made unitarily-molded of flexible plastic material, and has a pair of strip fluted grooves which are concave at both sides of an upper portion of the strip scraper for insertion into the jaw-like paws of the detachable clamping device, said strip fluted groove further provided with two metal elastic splint rods and a scraper edge in connection with said both sides and a lower portion of said strip scraper respectively; and
wherein said frame cover serves as sheath to accommodate said truss saddle and is provided at the center with a rectangular hole, and at a central bottom of both sides of the frame cover with two respective snap-on noses.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/152,166 US7150066B1 (en) | 2005-06-15 | 2005-06-15 | Windshield wiper structure for vehicles |
EP05025707A EP1733939A3 (en) | 2005-06-15 | 2005-11-24 | Windshield wiper structure for vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/152,166 US7150066B1 (en) | 2005-06-15 | 2005-06-15 | Windshield wiper structure for vehicles |
Publications (2)
Publication Number | Publication Date |
---|---|
US7150066B1 US7150066B1 (en) | 2006-12-19 |
US20060282972A1 true US20060282972A1 (en) | 2006-12-21 |
Family
ID=36975248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/152,166 Expired - Fee Related US7150066B1 (en) | 2005-06-15 | 2005-06-15 | Windshield wiper structure for vehicles |
Country Status (2)
Country | Link |
---|---|
US (1) | US7150066B1 (en) |
EP (1) | EP1733939A3 (en) |
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Also Published As
Publication number | Publication date |
---|---|
US7150066B1 (en) | 2006-12-19 |
EP1733939A3 (en) | 2009-07-15 |
EP1733939A2 (en) | 2006-12-20 |
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