US20070163631A1 - Shade, more particularly an umbrella and/or sunshade - Google Patents

Shade, more particularly an umbrella and/or sunshade Download PDF

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Publication number
US20070163631A1
US20070163631A1 US11/587,640 US58764006A US2007163631A1 US 20070163631 A1 US20070163631 A1 US 20070163631A1 US 58764006 A US58764006 A US 58764006A US 2007163631 A1 US2007163631 A1 US 2007163631A1
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US
United States
Prior art keywords
arms
canvas
mentioned
bar
bush
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.)
Abandoned
Application number
US11/587,640
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English (en)
Inventor
Amand Vanquaille
Sem Schanzer
Kris Henkens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Individual filed Critical Individual
Publication of US20070163631A1 publication Critical patent/US20070163631A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B19/00—Special folding or telescoping of umbrellas
    • A45B19/02—Inflatable umbrellas; Umbrellas without ribs
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B11/00—Umbrellas characterised by their shape or attachment
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B25/00—Details of umbrellas
    • A45B25/06—Umbrella runners
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B19/00—Special folding or telescoping of umbrellas
    • A45B19/02—Inflatable umbrellas; Umbrellas without ribs
    • A45B2019/023—Umbrellas with stretchers only
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B23/00—Other umbrellas
    • A45B2023/0012—Ground supported umbrellas or sunshades on a single post, e.g. resting in or on a surface there below

Definitions

  • the present invention concerns an improved shade, more particularly an umbrella and/or sunshade.
  • the invention concerns an improved shade which mainly consists of a bar, of a canvas fixed to this bar on one far end, arms for stretching the canvas and a bush which can be shifted over the bar in order to open and close the canvas by means of the arms.
  • the above-mentioned bush In order to open the shade, the above-mentioned bush is moved upward over the bar, as a result of which the above-mentioned auxiliary bars push the arms outward and thus stretch the canvas in the opened position, whereby the above-mentioned bush is locked in the opened position of the shade by means of a locking mechanism.
  • the above-mentioned arms may have the shape of flexible laths as well as of hinge-mounted arms.
  • a disadvantage of such known shades is that, for the operation, more specifically for the opening and closing, arms as well as auxiliary bars are required.
  • An additional disadvantage consists in that the above-mentioned bar must extent under the shade over a sufficient length in order to be able to lower the bush sufficiently so as to close the shade entirely, as a result of which the above-mentioned bar can be an obstacle in case the shade is suspended or the like, for example.
  • the above-mentioned bar extends from the middle of such a known shade, perpendicular to the surface formed by the far ends of the above-mentioned arms which are connected to the canvas, such that the possibilities for positioning such a shade are limited, and the open passage under such a shade is obstructed, and whereby also additional slantingly directed supports are often required for the anchoring.
  • the present invention aims to remedy one or several of the above-mentioned and other disadvantages.
  • the invention concerns an improved shade, more particularly an umbrella and/or sunshade, which mainly consists of a bar, a canvas fixed to one far end of this bar, arms for stretching the canvas and a bush which can be moved over the bar to open and close the canvas by means of the arms, whereby the above-mentioned arms are fixed with one far end to the above-mentioned canvas, near the edge of the canvas, and whereby they are hinge-mounted with their other far end to the above-mentioned bush, and whereby the above-mentioned canvas is provided with cut-outs on the edge between two adjacent arms, which make sure that forces which are transmitted to the above-mentioned arms by the above-mentioned canvas converge in one point, more particularly in the centre point of the bush.
  • an umbrella and/or sunshade which mainly consists of a bar, a canvas fixed to one far end of this bar, arms for stretching the canvas and a bush which can be moved over the bar to open and close the canvas by means of the arms,
  • An advantage of such a shade according to the invention is that, for the operation, more specifically the opening and closing of the shade, no auxiliary bars are required, so that the construction of a shade according to the invention is relatively simple, such that it can be mounted faster and easier.
  • Another advantage of such an improved shade according to the invention is that, by omitting the above-mentioned auxiliary bars, no moments of force are exerted on the above-mentioned arms during the operation and in the opened position, but they are only strained by mere pressure forces. As a result, the diameter of the arms can be limited as there is a better utilization of materials in case of a buckling load than in case of a flexural strain.
  • An additional advantage consists in that the above-mentioned bar may have a restricted length, since the above-mentioned bush can only be moved over the part of the bar which is situated between the surface formed by the free ends of the above-mentioned arms and the top of the bar during the operation, as a result of which such a shade according to the invention can be suspended or the like for example, such that the above-mentioned bar does not extend under the shade and forms an obstacle by doing so.
  • Another additional advantage is that the mode of construction of such a shade makes it possible to manufacture an asymmetric shade with arms of different lengths. As a result, the possibilities as far as shape is concerned are practically unlimited.
  • the above-mentioned bar can be positioned slantingly in relation to the surface formed by the free ends of the above-mentioned arms which are connected to the canvas, resulting in more possibilities to position such a shade according to the invention.
  • Another advantage of such an improved shade according to the invention is that, thanks to the presence of the above-mentioned cut-outs, forces which are transmitted by the above-mentioned canvas to the above-mentioned arms converge in one point, more particularly in the centre point of the bush, such that there are no heavy moments on the far ends of the arms, and the bush can be easily moved over the bar.
  • the above-mentioned canvas in the opened position, is stretched in a self-supporting manner in a convex shape, whereby the canvas is merely under strain of tension.
  • the far ends of the arms which are connected to the canvas are situated in a single surface and the above-mentioned bar forms an acute angle with said surface.
  • means are provided to provide for an initial rotational movement to the arms when opening.
  • FIG. 1 schematically represents an improved shade according to the invention in perspective
  • FIG. 2 is a section according to line II-II in FIG. 1 ;
  • FIG. 3 represents the part indicated in FIG. 2 by F 3 to a larger scale
  • FIGS. 4 and 5 represent a section as in FIG. 2 , but in another position;
  • FIGS. 6 and 7 schematically represent a vector of the forces acting on a shade according to the invention while the shade is in use;
  • FIG. 8 represents a variant of a shade according to the invention, as represented in FIG. 2 ;
  • FIG. 9 represents another variant according to FIG. 3 .
  • FIGS. 1 and 2 represent an improved shade 1 according to the invention which mainly consists of a bar 2 , a canvas 3 fixed to one far end of this bar 2 , arms 4 to stretch the canvas 3 and a bush 5 or ring for opening and closing the canvas 3 by means of the arms 4 which can be moved over the bar 2 .
  • the above-mentioned arms 4 are fixed to the above-mentioned canvas 3 with one far end 6 , in this case near the edge 7 of the canvas 3 , and they are hinge-mounted to the above-mentioned bush 5 with their other far end 8 .
  • the above-mentioned arms 4 have different lengths, as a result of which the shade 1 according to the invention is asymmetric.
  • the above-mentioned edge 7 of the canvas 3 is also provided with cut-outs 9 between two adjacent arms 4 , which in this case have different dimensions, but which can also be equally large.
  • the improved shade 1 according to the invention is additionally provided with means 10 to provide for an initial rotational movement to the arms 4 when opening the shade 1 as of an entirely closed position, which means 10 in this case have the form of draw springs 11 which are each fixed to the top of a respective arm 4 on the one hand and to the above-mentioned bush 5 on the other hand.
  • FIGS. 2 to 5 The use of such a shade according to the invention is represented in the FIGS. 2 to 5 and is very simple and as follows.
  • the above-mentioned bush 5 can be moved down over the bar 2 , for example manually, such that the arms 4 are turned further up and the canvas 3 is put under strain.
  • the arms 4 are already turned somewhat open, such that the tensile force in the canvas is no longer parallel to the bar 2 and a torque is created, as a result of which the arms 4 turn open.
  • FIG. 2 represents an improved shade according to the invention, in the opened position, whereby the bush 5 is moved down and as a result of which the arms 4 stretch the edge 7 of the canvas 3 outward in a convex manner.
  • the arms 4 extend at an angle in relation to the surface 12 through the free ends 6 of the arms 4 , such that the above-mentioned bush 5 is situated higher than this above-mentioned surface 12 .
  • the arms 4 tend to turn further up around their respective hinge attachments to the above-mentioned bush 5 .
  • the bush 5 In order to close the improved shade 1 according to the invention, the bush 5 must be moved to the top of the shade, as represented in FIGS. 4 and 5 . In this manner, the arms 4 hinge around the suspension points on the bush 5 and the canvas 3 , partly under the influence of the canvas' own weight, such that the above-mentioned arms 4 fold down.
  • FIG. 6 shows how the above-mentioned arms 4 taper according to the direction of forces 13 which are exerted by the above-mentioned canvas 3 on the far ends 6 of the respective arms 4 , in case of a mere pre-stress, more particularly without any external strain and in an entirely opened position.
  • the aim thereof is to merely pressure-load the arms 4 and to not put them under any flexural strain, such that the diameter of the above-mentioned arms 4 can be restricted and which makes the construction lighter and cheaper.
  • the above-mentioned different cut-outs 9 make sure that forces 13 , which are transmitted by the above-mentioned canvas 3 to the above-mentioned arms 4 , converge in one point 14 , more particularly in the centre point of the bush 5 .
  • FIG. 7 shows how the above-mentioned bar 2 is placed slantingly, more specifically in the direction of the resultant force at the top of the shade 1 .
  • the above-mentioned bar 2 can be provided with a locking mechanism which is not represented in the figures, in order to lock the above-mentioned bush 5 against moving to the top of the above-mentioned shade 1 , and it can be provided with a stop for the bush 5 in its bottommost position.
  • the direction of the resultant force 14 of the canvas 3 forms an acute angle ⁇ with the above-mentioned surface 12 , as a result of the asymmetric form of the shade 1 according to the invention.
  • the above-mentioned bar 2 also encloses an acute angle a with the above-mentioned surface 12 through the far ends 6 of the arms 4 on the edge 7 of the canvas 3 in an opened position, such that the direction of the above-mentioned bar 2 coincides with the direction of the above-mentioned resultant force 14 .
  • FIG. 8 represents a variant of a shade 1 according to the invention, whereby the shade 1 is suspended by means of suspension means 14 .
  • the above-mentioned bush 5 is provided such that it can be moved according to the invention between the surface 12 formed by the free ends 6 of the above-mentioned arms 4 on the one hand and the top of the bar 2 on the other hand.
  • This variant is advantageous in that, when in use, the bar 2 does not extend far under the above-mentioned canvas 3 , such that a free passage is created under the shade 1 , which is not possible with a conventional shade, since the bar has to be much longer there in order to be able to move the bush over a sufficiently large distance in order to operate the shade.
  • a shade 1 according to the invention can be realised in a shape which deviates from the usual round shape of conventional shades, such that with a single shade 1 according to the invention a relatively complex surface can be covered.
  • FIG. 9 represents a variant of an improved shade 1 according to the invention, whereby the above-mentioned means 10 for providing an initial rotational movement to the arms 4 are formed of compression springs 15 which are each provided under a respective arm 4 on the one hand and on the above-mentioned bush 5 on the other hand.
  • the above-mentioned bush 5 in this case moreover has a collar 16 which forms a stop for the above-mentioned arms 4 , such that it is avoided that these arms 4 might fold up for example under the influence of wind or the like.
  • drawing elements may also be provided to the above-mentioned arms 4 , for example in the form of cables or the like, which are fixed to a respective arm 4 on the one hand, and to the above-mentioned bar 2 or to the ground on the other hand.

Landscapes

  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Building Awnings And Sunshades (AREA)
US11/587,640 2004-04-27 2005-04-27 Shade, more particularly an umbrella and/or sunshade Abandoned US20070163631A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE2004/0210A BE1015996A3 (nl) 2004-04-27 2004-04-27 Verbeterd scherm, meer speciaal een regen- en/of zonnescherm.
BE2004/0210 2004-04-27
PCT/BE2005/000060 WO2005102098A1 (en) 2004-04-27 2005-04-27 Improved shade, more particularly an umbrella and/or sunshade

Publications (1)

Publication Number Publication Date
US20070163631A1 true US20070163631A1 (en) 2007-07-19

Family

ID=34965966

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/587,640 Abandoned US20070163631A1 (en) 2004-04-27 2005-04-27 Shade, more particularly an umbrella and/or sunshade

Country Status (4)

Country Link
US (1) US20070163631A1 (nl)
EP (1) EP1740069B1 (nl)
BE (1) BE1015996A3 (nl)
WO (1) WO2005102098A1 (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9326573B1 (en) 2012-11-16 2016-05-03 Norman Harris Portable shade assembly with clamping system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1029225C2 (nl) 2005-06-09 2006-12-12 Senz Technologies B V Scherminrichting.
AT502471B1 (de) * 2006-01-11 2007-04-15 Walter Spatzek Schirm

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US604275A (en) * 1898-05-17 Self-closing umbrella
US2114598A (en) * 1935-06-19 1938-04-19 Susan A Grissel Umbrella
US2160231A (en) * 1935-11-08 1939-05-30 Schaefer Gerhart Umbrella frame
US2707476A (en) * 1954-05-06 1955-05-03 John E Clemens Umbrella
US3217723A (en) * 1963-03-25 1965-11-16 Adalbert W Suchy Umbrella
US5640984A (en) * 1995-09-12 1997-06-24 Dubunsky; Emanuel Special fold-up umbrella having rib and frame design for easier opening and closing of umbrella, and two canopies designed to stabilize the ribs and vent the air
US5826604A (en) * 1996-02-08 1998-10-27 Hartmann; Hans-Jorg Standing umbrella
US5941261A (en) * 1994-10-31 1999-08-24 Shade Structures Pacific Pty Ltd Et Cetera Conical tension membrane structure
US6725870B1 (en) * 2002-09-24 2004-04-27 Albert Chong-Jen Lo Simple hanging parasol
USD503036S1 (en) * 2003-10-10 2005-03-22 John David Di Cesare Umbrella

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU572753B2 (en) * 1984-03-01 1988-05-12 Kamols, P.M. Umbrella structure
FR2598895A1 (fr) * 1986-05-26 1987-11-27 Julian Yvon Perfectionnement aux parapluies
GB2197672A (en) * 1986-11-19 1988-05-25 Christopher Brian Heyring Collapsible structure
DE3708921A1 (de) * 1987-03-19 1988-09-29 Hubert Lennarz Grossschirm
NL1004026C2 (nl) * 1996-09-13 1998-03-20 Werner B V Schermconstructie.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US604275A (en) * 1898-05-17 Self-closing umbrella
US2114598A (en) * 1935-06-19 1938-04-19 Susan A Grissel Umbrella
US2160231A (en) * 1935-11-08 1939-05-30 Schaefer Gerhart Umbrella frame
US2707476A (en) * 1954-05-06 1955-05-03 John E Clemens Umbrella
US3217723A (en) * 1963-03-25 1965-11-16 Adalbert W Suchy Umbrella
US5941261A (en) * 1994-10-31 1999-08-24 Shade Structures Pacific Pty Ltd Et Cetera Conical tension membrane structure
US5640984A (en) * 1995-09-12 1997-06-24 Dubunsky; Emanuel Special fold-up umbrella having rib and frame design for easier opening and closing of umbrella, and two canopies designed to stabilize the ribs and vent the air
US5826604A (en) * 1996-02-08 1998-10-27 Hartmann; Hans-Jorg Standing umbrella
US6725870B1 (en) * 2002-09-24 2004-04-27 Albert Chong-Jen Lo Simple hanging parasol
USD503036S1 (en) * 2003-10-10 2005-03-22 John David Di Cesare Umbrella

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9326573B1 (en) 2012-11-16 2016-05-03 Norman Harris Portable shade assembly with clamping system

Also Published As

Publication number Publication date
WO2005102098A1 (en) 2005-11-03
WO2005102098B1 (en) 2005-12-01
BE1015996A3 (nl) 2006-01-10
EP1740069A1 (en) 2007-01-10
EP1740069B1 (en) 2014-01-08

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION