WINDSHIELD WIPER STRUCTURE FOR VEHICLES
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.
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.
BACKGROUND OF THE INVENTION Referring to
When said strip scraper 8 of both aforementioned conventional windshield wiper sweeps back and forth on the windshield G, a gap is created in said articulations 3, which being the joint of said master wiper arm 2 and said both first holding arms 4, and said articulations 5, which being the joint of each inwards end of said both first holding arms 4 and said both second holding arms 6. And, the more frequency by the wiper sweeps, the more gradually enlarged the gap will be. Hence, the linearity among said master wiper arm 2, said first holding arms 4 and said second holding arms 6 eventually loses alignment (as shown in
Therefore, the businessmen bring the third kind of conventional windshield wiper (also called no-holding-arm wiper) into the market recently. As shown in
Referring to
Besides, 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. When said wiper sweeps back and forth, 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
Accordingly, some other businessmen introduces the fourth kind of no-holding-arm wiper as shown in
a truss saddle 30;
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;
two stripe main body 50, which being unitary-molded made of flexible elastic material, is securely caught on said bow elastic stripe 40 at both sides of said truss saddle 30; At two sides of its bottom, a indented grapple stripe 51 is created correspondingly; At the internal top center of said indented grapple stripe 51, a cone-shaped suspending bracket stripe 52 is built
some detachable clamping devices 60 are securely buckled in each said square hole 41 respectively on said bow elastic stripe 40; On its upper section, a pair of protruding lugs 61 are created in cross sectional shape of trapezoid; On the center in each of said both protruding lug 61, a elastic 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-on hole 42 on both ends of said bow elastic 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-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
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. 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
2. Referring to
a. One by one, insert and buckle said protruding lug 61 of said detachable clamping device 60 into said square bole 41 of said bow elastic stripe 40 (as shown in the section A of the
b. Push said detachable clamping device 60 from the bottom of said jaw-like paw 63 such that said elastic barb 62 being pressed and bent inwards (as shown in the section B of the
c. Guide and sleeve said two stripe main bodies 50 into bow elastic stripe 40. During this process, careful to keep said indented grapple stripes 51 and suspending bracket stripe 52 dovetail with both side of said bow elastic stripe 40. And, to slide and sleeve then into said protruding lugs 61 of said detachable clamping device 60 (as shown in the section D of the
d. After said two stripe main bodies 50 have been wholly sleeved with said bow elastic stripe 40, put and buckle said end ferrule cap 70 at both ends of said bow elastic stripe 40. So that said snap-on lugs 72 at the bottom side of said end ferrule cap 70 are completely inserted and buckled into said snap-on holes 42 of said bow elastic stripe 40 (as shown in the section E of the
e. Finally, put and insert said strip scraper 80 into said jaw-like paw 63, which being the lower section of said detachable clamping device 60. And, put and insert said two elastic splint rods 84 into said strip scraper X0. All assembly process finishes here (as shown in the section F of the
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 the main bodies 50 is much more due to directionality in step c.
3. Referring to the section E of the
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.
SUMMARY OF THE PRESENT INVENTIONThe 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.
BRIEF DESCRIPTION OF THE DRAWINGS
Referring to
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a. Insert said polygon lug 401 of each said detachable clamping device 400 into each corresponding said polygon hole 201 on said bow elastic stripe 200 and securely rivet them respectively. Then, solder the bottom side of said truss saddle 100 with central top side of said bow elastic stripe 200.
b. Take any end of said cover body 300 to sleeve into any end of said bow elastic stripe 200. By means of opening up said weather-stripping fascia 303 at the bottom portion of said cover body 300, it can be push inward inch by inch up to completely sheath on said bow elastic stripe 200 (as shown in
c. Insert said strip scraper 500 into said jaw-like paw 402 at the lower portion of each said detachable clamping device 400 progressively. Then, pass said frame cover 600 through truss saddle 100 until said snap-on nose 602 snap-on and being buckled at the bottom of both sides in said bow elastic stripe 200. Thus, the assembly process of the present invention is finished here (as shown in
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
Claims
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.
Type: Application
Filed: Jun 15, 2005
Publication Date: Dec 21, 2006
Inventor: Shih Huang (Kaohsiung City)
Application Number: 11/152,166
International Classification: B60S 1/38 (20060101);