US20010034970A1 - Sunshade for agricultural use - Google Patents
Sunshade for agricultural use Download PDFInfo
- Publication number
- US20010034970A1 US20010034970A1 US09/866,303 US86630301A US2001034970A1 US 20010034970 A1 US20010034970 A1 US 20010034970A1 US 86630301 A US86630301 A US 86630301A US 2001034970 A1 US2001034970 A1 US 2001034970A1
- Authority
- US
- United States
- Prior art keywords
- weft
- portions
- stringing
- warp yarns
- sections
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/22—Shades or blinds for greenhouses, or the like
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0206—Canopies, i.e. devices providing a roof above the plants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Definitions
- This invention relates to a sunshade, more particularly to a sunshade for intercepting sun rays above plants in a field.
- FIG. 1 illustrates a conventional sunshade for intercepting sun rays above plants in a field.
- the sunshade includes a pair of opposing strings 4 , and a plurality of spaced apart net portions 6 attached to said strings 4 .
- the net portions 6 are aligned parallel along the length of and extend downwardly from the strings 4 .
- Each net portion 6 has intersecting warp and weft filaments 1 , 2 .
- the warp filaments 1 extend transversely to the strings 4
- the weft filaments 2 extend downwardly from each net portion 6 .
- Each weft filament 2 has an interlaced portion 3 interlaced with the warp filament 1 , and a free portion 5 extending downwardly from the interlaced portion 3 .
- the free portions 5 of the weft filaments 2 can be swung by the wind, thereby providing a dynamic shade for the plants.
- the above described sunshade has a disadvantage in that the weft filaments 2 near the strings 4 can be easily wound up around the strings 4 when the wind blows (see FIG. 2), thereby losing its ability to provide shade.
- a sunshade for intercepting sun rays above plants in a field of this invention is characterized by: an intermediate net portion which includes a plurality of flat warp yarns and a plurality of first monofilament circular weft yarns interlaced with the flat warp yarns; two stringing sections formed on two sides of the intermediate net portion, the flat warp yarns extending into the two stringing sections from the net portion, each of the stringing sections having two spaced-apart first weft-free portions and a limit portion interposed between the first weft-free portions, the limit portion having a plurality of second monofilament circular weft yarns interlaced with the flat warp yarns, the limit portion be folded to lay the first weft-free portions one over the other; two opposite drape portions extending from the stringing sections, respectively, opposite to the net portion, the flat warp yarns extending into the two drape portions from the stringing sections, each of the drape portions having a plurality of third monofilament circular
- FIG. 1 is a schematic perspective view of a conventional sunshade installed on a field
- FIG. 2 is a fragmentary side view of the sunshade of FIG. 1 with filaments wound around strings due to blowing of the wind;
- FIG. 3 is a fragmentary plan view of a sunshade embodying this invention.
- FIG. 4 is a perspective view of the sunshade of FIG. 3.
- FIG. 5 is a schematic side view of the sunshade of FIG. 3 with filaments swung to lay on a net portion due to blowing of the wind.
- FIGS. 3 and 4 illustrate a sunshade 10 embodying this invention.
- the sunshade 10 has an intermediate net portion 13 which includes a plurality of flat warp yarns 11 and a plurality of first monofilament circular weft yarns 12 interlaced with the flat warp yarns 11 .
- Two stringing sections 14 are formed on two sides of the intermediate net portion 13 , respectively.
- the flat warp yarns 11 of the net portion 13 extend into the two stringing sections 14 from the two sides of the net portion 13 .
- Each of the stringing sections 14 has two spaced-apart first weft-free portions 141 and a limit portion 142 interposed between the first weft-free portions 141 .
- Each limit portion 142 has a plurality of second monofilament circular weft yarns 121 interlaced with the flat warp yarns 11 .
- Each limit portion 142 is folded to lay the first weft-free portions 141 one over the other.
- Two opposite drape portions 16 extend from the stringing sections 14 , respectively, opposite to the net portion 13 .
- the flat warp yarns 11 of the net portion 13 extend into the two drape portions 16 from the stringing sections 14 .
- Each of the drape portions 16 includes a positioning portion 15 that has a plurality of third monofilament circular weft yarns 122 interlaced with the warp yarns 11 adjacent to a corresponding one of the stringing sections 14 , and a second weft-free portion 161 that extends away from the positioning portion 15 .
- a pair of strings 20 thread through and fasten together the first weft-free portions 141 of the stringing sections 14 , wherein the two drape portions 16 extend downward from the stringing sections 14 , respectively, when the net portion 13 is placed substantially horizontally, and wherein the distance between the strings 20 is greater than half the distance between each of the strings 20 and the bottommost end of the corresponding one of the drape portions 16 .
- the arrangement of the limit portions 142 of the stringing sections 14 permit the strings 20 to be well positioned within the stringing sections 14 , respectively, and the arrangement of the positioning portions 15 of the drape portions 16 can prevent the second weft-free portions 161 of the drape portions 16 from becoming entangled when blown by the wind.
- the sunshade 10 of this invention not only provides static shade by virtue of the net portion 13 , but also dynamic shade by virtue of the two opposite drape portions 16 .
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Building Awnings And Sunshades (AREA)
Abstract
A sunshade includes an intermediate net portion having monofilament circular weft yarns interlaced with flat warp yarns, two stringing sections which are formed on two sides of the intermediate net portion and each of which has a limit portion which is interposed between two weft-free portions and which is folded to lay the weft-free portions one over the other, two opposite drape portions extending from the stringing sections, respectively, and a pair of strings threading through and fastening together the weft-free portions.
Description
- This application is a continuation-in-part (CIP) of co-pending U.S. patent application Ser. No. 09/412,155, filed by the applicant on Oct. 5, 2000, the entire disclosure of which is incorporated herein by reference.
- 1. Field of the Invention
- This invention relates to a sunshade, more particularly to a sunshade for intercepting sun rays above plants in a field.
- 2. Description of the Related Art
- FIG. 1 illustrates a conventional sunshade for intercepting sun rays above plants in a field. The sunshade includes a pair of opposing strings4, and a plurality of spaced apart net portions 6 attached to said strings 4. The net portions 6 are aligned parallel along the length of and extend downwardly from the strings 4. Each net portion 6 has intersecting warp and
weft filaments warp filaments 1 extend transversely to the strings 4, and theweft filaments 2 extend downwardly from each net portion 6. Eachweft filament 2 has an interlaced portion 3 interlaced with thewarp filament 1, and afree portion 5 extending downwardly from the interlaced portion 3. Thefree portions 5 of theweft filaments 2 can be swung by the wind, thereby providing a dynamic shade for the plants. However, the above described sunshade has a disadvantage in that theweft filaments 2 near the strings 4 can be easily wound up around the strings 4 when the wind blows (see FIG. 2), thereby losing its ability to provide shade. Moreover, it is laborious to restore thefilaments 2 to their original places. - Therefore, it is an object of the present invention to provide a sunshade that is capable of overcoming the aforementioned disadvantage.
- Accordingly, a sunshade for intercepting sun rays above plants in a field of this invention is characterized by: an intermediate net portion which includes a plurality of flat warp yarns and a plurality of first monofilament circular weft yarns interlaced with the flat warp yarns; two stringing sections formed on two sides of the intermediate net portion, the flat warp yarns extending into the two stringing sections from the net portion, each of the stringing sections having two spaced-apart first weft-free portions and a limit portion interposed between the first weft-free portions, the limit portion having a plurality of second monofilament circular weft yarns interlaced with the flat warp yarns, the limit portion be folded to lay the first weft-free portions one over the other; two opposite drape portions extending from the stringing sections, respectively, opposite to the net portion, the flat warp yarns extending into the two drape portions from the stringing sections, each of the drape portions having a plurality of third monofilament circular weft yarns interlaced with the warp yarns adjacent to a corresponding one of the stringing sections, and a second weft-free portion extending away from the third monofilament circular weft yarns; and a pair of strings threading through and fastening together the first weft-free portions of the stringing sections, wherein the two drape portions extend downward from the stringing sections, respectively, when the net portion is placed substantially horizontally, and wherein the distance between the strings is greater than half the distance between each of the strings and the bottommost end of the corresponding one of the drape portions.
- In drawings which illustrate an embodiment of the invention,
- FIG. 1 is a schematic perspective view of a conventional sunshade installed on a field;
- FIG. 2 is a fragmentary side view of the sunshade of FIG. 1 with filaments wound around strings due to blowing of the wind;
- FIG. 3 is a fragmentary plan view of a sunshade embodying this invention;
- FIG. 4 is a perspective view of the sunshade of FIG. 3; and
- FIG. 5 is a schematic side view of the sunshade of FIG. 3 with filaments swung to lay on a net portion due to blowing of the wind.
- FIGS. 3 and 4 illustrate a
sunshade 10 embodying this invention. Thesunshade 10 has anintermediate net portion 13 which includes a plurality offlat warp yarns 11 and a plurality of first monofilamentcircular weft yarns 12 interlaced with theflat warp yarns 11. - Two
stringing sections 14 are formed on two sides of theintermediate net portion 13, respectively. Theflat warp yarns 11 of thenet portion 13 extend into the two stringingsections 14 from the two sides of thenet portion 13. Each of the stringingsections 14 has two spaced-apart first weft-free portions 141 and alimit portion 142 interposed between the first weft-free portions 141. Eachlimit portion 142 has a plurality of second monofilamentcircular weft yarns 121 interlaced with theflat warp yarns 11. Eachlimit portion 142 is folded to lay the first weft-free portions 141 one over the other. - Two
opposite drape portions 16 extend from thestringing sections 14, respectively, opposite to thenet portion 13. Theflat warp yarns 11 of thenet portion 13 extend into the twodrape portions 16 from thestringing sections 14. Each of thedrape portions 16 includes apositioning portion 15 that has a plurality of third monofilamentcircular weft yarns 122 interlaced with thewarp yarns 11 adjacent to a corresponding one of thestringing sections 14, and a second weft-free portion 161 that extends away from thepositioning portion 15. - A pair of
strings 20 thread through and fasten together the first weft-free portions 141 of thestringing sections 14, wherein the twodrape portions 16 extend downward from thestringing sections 14, respectively, when thenet portion 13 is placed substantially horizontally, and wherein the distance between thestrings 20 is greater than half the distance between each of thestrings 20 and the bottommost end of the corresponding one of thedrape portions 16. - Referring now to FIG. 5 in combination with FIGS. 3 and 4, in contrast with the aforementioned winding problem that occurs in the conventional sunshade of FIG. 1, the weft-
free portions 161 of thedrape portions 16 of thesunshade 10 of this invention are swung to lay only on thenet portion 13 when blown by the wind. However, these weft-free portions 161 of thedrape portions 16 can be easily restored to their original places by another gust of wind or by hand. - The arrangement of the
limit portions 142 of the stringingsections 14 permit thestrings 20 to be well positioned within thestringing sections 14, respectively, and the arrangement of the positioningportions 15 of thedrape portions 16 can prevent the second weft-free portions 161 of thedrape portions 16 from becoming entangled when blown by the wind. - The
sunshade 10 of this invention not only provides static shade by virtue of thenet portion 13, but also dynamic shade by virtue of the twoopposite drape portions 16. - With the invention thus explained, it is apparent that various modifications and variations can be made without departing from the spirit of the present invention.
Claims (1)
1. A sunshade for intercepting sun rays above plants in a field, comprising:
an intermediate net portion which includes a plurality of flat warp yarns and a plurality of first monofilament circular weft yarns interlaced with said flat warp yarns;
two stringing sections formed on two sides of said intermediate net portion, said flat warp yarns extending into said two stringing sections from said net portion, each of said stringing sections having two spaced-apart first weft-free portions and a limit portion interposed between said first weft-free portions, said limit portion having a plurality of second monofilament circular weft yarns interlaced with said flat warp yarns, said limit portion be folded to lay said first weft-free portions one over the other;
two opposite drape portions extending from said stringing sections, respectively, opposite to said net portion, said flat warp yarns extending into said two drape portions from said stringing sections, each of said drape portions having a plurality of third monofilament circular weft yarns interlaced with said warp yarns adjacent to a corresponding one of said stringing sections, and a second weft-free portion extending away from said third monofilament circular weft yarns; and
a pair of strings threading through and fastening together said first weft-free portions of said stringing sections, wherein said two drape portions extend downward from said stringing sections, respectively, when said net portion is placed substantially horizontally, and wherein the distance between said strings is greater than half the distance between each of said strings and the bottommost end of the corresponding one of said drape portions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/866,303 US6421954B2 (en) | 1999-10-05 | 2001-05-25 | Sunshade for agricultural use |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41215599A | 1999-10-05 | 1999-10-05 | |
US09/866,303 US6421954B2 (en) | 1999-10-05 | 2001-05-25 | Sunshade for agricultural use |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US41215599A Continuation-In-Part | 1999-10-05 | 1999-10-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010034970A1 true US20010034970A1 (en) | 2001-11-01 |
US6421954B2 US6421954B2 (en) | 2002-07-23 |
Family
ID=23631818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/866,303 Expired - Fee Related US6421954B2 (en) | 1999-10-05 | 2001-05-25 | Sunshade for agricultural use |
Country Status (1)
Country | Link |
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US (1) | US6421954B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050144836A1 (en) * | 2003-12-30 | 2005-07-07 | Ming-Hsien Ko | Sunshade having more than two heat-dissipating portions formed from weft yarns |
NL1035819C2 (en) * | 2008-08-13 | 2010-02-16 | Oerlemans Plastics B V | Insulation screen for e.g. warehouse, has openings formed in screen material, and sidewalls formed for supporting roof of warehouse or greenhouse having foundation |
CN103168651A (en) * | 2013-03-06 | 2013-06-26 | 唐剑 | Sunshade net and weaving method thereof |
US10849281B2 (en) * | 2014-06-16 | 2020-12-01 | Nine Ip Limited | Netting material |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7243459B2 (en) * | 2004-12-20 | 2007-07-17 | Fw Enviro, Llc | Method of cultivation and components for use therewith |
US7809475B2 (en) * | 2004-12-20 | 2010-10-05 | Fw Enviro, Llc | Computer controlled fertigation system and method |
US20060150497A1 (en) * | 2004-12-20 | 2006-07-13 | Kaprielian Craig L | Method of hydroponic cultivation and components for use therewith |
US20080172935A1 (en) * | 2007-01-22 | 2008-07-24 | Chiang-Kuei Feng | Conservatory apparatus |
US20120090229A1 (en) * | 2009-04-16 | 2012-04-19 | Jonathan Dallas Toye | Reflective netting material |
Family Cites Families (15)
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US1106624A (en) * | 1913-03-10 | 1914-08-11 | Lewis T Cadwallader | Protective covering for orchards. |
US2051643A (en) * | 1936-04-14 | 1936-08-18 | Southern Brighton Mills | Cloth house |
US2143659A (en) * | 1936-11-21 | 1939-01-10 | Julian K Morrison | Cloth house |
US2931373A (en) * | 1958-05-19 | 1960-04-05 | Dean W Larson | Shelter |
US2974442A (en) * | 1959-01-13 | 1961-03-14 | Whitfield Spinning Company | Shade cloth |
US2967533A (en) * | 1959-11-18 | 1961-01-10 | Virgil R Ballinger | Collapsible portable enclosure and sun shield apparatus |
US3162920A (en) * | 1963-08-30 | 1964-12-29 | Charles Schwartz & Company | Removable grommet attachment structure for sheet covers |
US3581436A (en) * | 1968-09-25 | 1971-06-01 | James D Basiger | Plant shield |
US3593997A (en) * | 1969-04-04 | 1971-07-20 | Port O Net Inc | Baseball-batting cage |
US5489136A (en) * | 1988-05-09 | 1996-02-06 | Pank; Michael J. | Method for providing an eternal, rain-tolerant sun screen for convex rear window of automobile |
US5451445A (en) * | 1993-11-16 | 1995-09-19 | Wang; Tsu J. | Foldable net assembly |
US5437298A (en) * | 1993-11-24 | 1995-08-01 | Lin; Chen Y. | Sunshade arrangement |
KR950025264A (en) * | 1994-02-03 | 1995-09-15 | 이헌조 | Axial Compliance Device of Scroll Compressor |
SE503105C2 (en) * | 1994-07-18 | 1996-03-25 | Svensson Ludvig Int | Plant protection device with foldable, waterproof plant protection curtain |
US5975613A (en) * | 1998-07-10 | 1999-11-02 | Sippel; Melanie A. | Stroller shading device |
-
2001
- 2001-05-25 US US09/866,303 patent/US6421954B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050144836A1 (en) * | 2003-12-30 | 2005-07-07 | Ming-Hsien Ko | Sunshade having more than two heat-dissipating portions formed from weft yarns |
NL1035819C2 (en) * | 2008-08-13 | 2010-02-16 | Oerlemans Plastics B V | Insulation screen for e.g. warehouse, has openings formed in screen material, and sidewalls formed for supporting roof of warehouse or greenhouse having foundation |
CN103168651A (en) * | 2013-03-06 | 2013-06-26 | 唐剑 | Sunshade net and weaving method thereof |
US10849281B2 (en) * | 2014-06-16 | 2020-12-01 | Nine Ip Limited | Netting material |
Also Published As
Publication number | Publication date |
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US6421954B2 (en) | 2002-07-23 |
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