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Publication numberUS20070144571 A1
Publication typeApplication
Application numberUS 11/313,918
Publication dateJun 28, 2007
Filing dateDec 22, 2005
Priority dateDec 22, 2005
Publication number11313918, 313918, US 2007/0144571 A1, US 2007/144571 A1, US 20070144571 A1, US 20070144571A1, US 2007144571 A1, US 2007144571A1, US-A1-20070144571, US-A1-2007144571, US2007/0144571A1, US2007/144571A1, US20070144571 A1, US20070144571A1, US2007144571 A1, US2007144571A1
InventorsJan-In Wu, Vasko Gospodinov
Original AssigneeWu Jan-In J, Gospodinov Vasko M
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Selferecting structure
US 20070144571 A1
Abstract
A structure includes a frame formed of one, two, three or more resilient endless forms of rod material in the shape of figure eight or connected on their longitudinal axis one after another such figures of eight or part of it, connected directly together or additionally connected firmly enough together or with other contours to form one rigid structure, covered with sheet material, extending over loops and sewed to the rod material. The places of the crossings of the rod material are accumulating the energy, when folded, which is needed for the unfolding of the structure. In the places of the crossings of the rod material are placed bushes, having the role to define the rate of the unfolding speed.
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Claims(5)
1. A selferectring structure comprising a frame formed of two resilient endless forms of rod material in the shape of connected on longitudinal axis one after another figure type contours of eight or part thereof, which are connected directly together or are additionally connected firmly enough together to form one rigid structure, the structure covered with sheet material, extending over loops and sewed to the rod material, wherein places of crossings of the rod material are accumulating energy, when folded, which is needed for unfolding the structure, and in the places of the crossings of the rod material are placed bushes, having a role to define rate of unfolding speed.
2. The selferecting structure of claim 1, further comprising a hose like appendage expanded additionally in a rear side.
3. A selferecting structure comprising a frame formed of one resilient endless form of rod material in the shape of a figure eight type contour, connected firmly to other side contours which are containing sand pockets to improve stability, the structure covered with sheet material, extending over loops and sewed to the rod material, wherein a place of crossing of the rod material is accumulating energy, when folded, which is needed for unfolding the structure, and in the place of the crossing of the rod material is placed bushes, having a role to define rate of unfolding speed.
4. The selferecting structure of claim 1, wherein a figure of letter T is formed with the contours connected directly together in one common contour.
5. A selferecting structure comprising a frame formed of three resilient endless forms of rod material in the shape of the figure eight contours), connected directly or additionally cross type between each other, the structure covered by sheet material, extending over loops and sewed to the rod material, wherein places of crossings of the rod material are accumulating energy, when folded, which is needed for the unfolding of the structure, and in the places of the crossings of the rod material are placed bushes, having a role to define rate of unfolding speed.
Description
    FIELD OF THE INVENTION
  • [0001]
    The present invention relates to a selferecting structure and, more particular, to a multi-purpose structure made of flexible frame elements and sheet material to form different shade providing devices or antimosquito net frames.
  • BACKGROUND OF THE INVENTION
  • [0002]
    Structures, which are composed of one or more continuous flexible figure eight loops with fabric extending over and between sections of the loops to define a partial or full enclosure, have been developed, which can be quickly erected or collapsed. Such devices are illustrated in U.S. Pat. No. 3,990,463; U.S. Pat. No. 6,302,127, the disclosure of which are incorporated herein by reference.
  • [0003]
    The simplest of the structures disclosed in the aforementioned patents is formed by a single figure eight frame made of endless band. Structures using this frame construction are not stable in the erected position and especially when placed on steep slopes, because are having only two support points to ground. There is a structure, that is constructed by two figure eight frames, placed at a distance from each other, but the separate frames are not connected steady and firmly between them in one rigid frame and so need additional strengthening, tightening and fastening elements like pegs, ropes and fabric as a linking element to keep the structure upright. Unfolding of those structures is not fully independent.
  • SUMMARY OF THE INVENTION
  • [0004]
    The present invention is directed to a structure including a frame, formed of one, two, three or more resilient endless forms of rod material in the shape of figure eight or connected on their longitudinal axis one after another such figures of eight or part of it (hereafter referred as figure eight type contours), connected directly or additionally firmly enough together or with other contours to form one rigid structure, covered by sheet material, extending over loops and sewed to the rod material. The places of the crossings of the rod material are accumulating the energy, when folded, that is needed for the unfolding of the structure. In the places of the crossings of the rod material are placed bushes, having the role to define the rate of the unfolding speed.
  • [0005]
    The advantages of thus presented invention are because of the use of one, two, three or more contours in the form of figure eight formations of flexible rod material, connected together or with other contours and with the help of the sheet material on them, form a rigid and stable construction with at least three, four, five or more support points to ground. The inner useful space is enlarged and the space,needed when in folded position, is low to a level, that they can be placed in a personal bag.
  • [0006]
    Accordingly, the present invention is to provide an improved structure, defined by a frame of one, two, three or more selfconnected endless contours, composed of crossed rod material and additional contours and sheet material, extending over the loops. Other and further objects and advantages will appear hereinafter.
  • [0007]
    It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the invention as claimed.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0008]
    These, as well as other features of the present invention, will become apparent upon reference to the drawings wherein:
  • [0009]
    FIG. 1 is a side view showing a selferecting structure consisting of two figure eight type contours.
  • [0010]
    FIG. 2 is a top view showing a selferecting structure consisting of two figure eight type contours.
  • [0011]
    FIG. 3 is a perspective view showing a selferecting structure consisting of two figure eight type contours.
  • [0012]
    FIG. 4 is a side view showing a selferecting structure consisting of two figure eight type contours expanded additionally.
  • [0013]
    FIG. 5 is a top view showing a selferecting structure consisting of two figure eight type contours expanded additionally.
  • [0014]
    FIG. 6 is a side view showing a selferecting structure consisting of one figure eight type contour with two side contours.
  • [0015]
    FIG. 7 is a front view showing a selferecting structure consisting of one figure eight type contour with two side contours.
  • [0016]
    FIG. 8 is a side view showing a selferecting structure consisting of one figure eight type contour with T-figure connection among the loops.
  • [0017]
    FIG. 9 is a front view showing a selferecting structure consisting of one figure eight type contour with T-figure connection among the loops.
  • [0018]
    FIG. 10 is a top view showing a selferecting structure consisting of one figure eight type contour with T-figure connection among the loops.
  • [0019]
    FIG. 11 is a side view showing a selferecting structure consisting of three figure eight type contours with cross type connections between contours.
  • [0020]
    FIG. 12 is a front view showing a selferecting structure consisting of three figure eight type contours with cross type connections between contours.
  • [0021]
    FIG. 13 is a top view showing a selferecting structure consisting of three figure eight type contours with cross type connections between contours.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • [0022]
    Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
  • [0023]
    Turning in detail to the Figures, FIG. 1, FIG. 2 and FIG. 3 are showing selferecting structure 1 with two figure eight type contours 3 made of elastic rods, connected together, sheet material 2 such as fabric material, sewed on the contours and bushes 4 placed on the crossings, to define the rate of unfolding speed. On FIG. 3 is shown door opening 15 and the straps 18 for tightening to the soldier's bed, if the sheet material 2 is a mosquito net. The structure is folded by folding the first, nearest to the door opening 15 contour, then folding it on to the second contour and then folding the thus formed two loops one over the other to form one ring. Then the one end of the thus formed ring is twisted 180 degrees relative to the other and the two new formed loops are folded one over the other. Thus folded structure is placed in a bag possessing similar dimensions. The structure unfolds automatically when pulled out of the containing bag.
  • [0024]
    On FIG. 4 and FIG. 5 is shown the same selferecting structure expanded additionally in the rear side by a hose like appendage 7. The structure is folded by folding the first nearest to the door opening 15 contour, then folding it on to the second contour and then folding the thus formed two loops one over the other to form one ring. Then the one end of the thus formed ring is twisted 180 degrees relative to the other and the two new formed loops are folded one over the other. Then the hose like appendage 7 is rolled over them. Thus folded structure is placed in a bag possessing similar dimensions. The structure unfolds automatically when pulled out of the containing bag.
  • [0025]
    FIG. 6 and FIG. 7 show selferecting structure 1 with one figure eight type contour 3 and two additional side contours 5, connected to the lower loop of figure eight type contour 3, sheet material 2, sewed on the contours, and bush 4 placed on the crossing. There are sand pockets 17 for better stability. On FIG. 7 is shown rope 16 which fixes the upper loop of the figure eight type contour 3 to its place when unfolded. The structure is folded by folding the upper loop of the figure eight type contour to the lower one. Then over them are folded the two side contours. Then the one end of the thus formed ring is twisted 180 degrees relative to the other and the two new formed loops are folded one over the other. Thus folded structure is placed in a bag possessing similar dimensions. The structure unfolds automatically when pulled out of the containing bag.
  • [0026]
    FIG. 8, FIG. 9 and FIG. 10 show selferecting structure 1 with one figure eight type contour 3 having a T-figure connection between the loops, sheet material 2, sewed on the contours, and bushes 4 and 14 on the crossings. There is a floor fabric 25. The structure is folded by folding the two smaller loops in the rear part onto the central upper loop and then the two side loops over them. Then the one end of the thus formed ring is twisted 180 degrees relative to the other and the two new formed loops are folded one over the other. Thus folded structure is placed in a bag possessing similar dimensions. The structure unfolds automatically when pulled out of the containing bag.
  • [0027]
    On FIG. 11, FIG. 12 and FIG. 13 show selferecting structure 1 with two figure eight type contours 3 and one figure eight type contour 13, having cross type connection between them, sheet material 2, sewed on the contours, and bushes 4 on the crossings. On FIG. 12 shows the door opening 10 and floor fabric 8. The structure is folded by folding the front aside loops over the central, then the front upper loop over them,then over them are folded the middle loops, then the two back, aside of the central, loops are folded over the central loop and all of them are folded over the folded so far loops. Thus folded structure is placed in a bag possessing similar dimensions. The structure unfolds automatically when pulled out of the containing bag.
  • [0028]
    The structures of this invention are useful as tents, shelters, sunshade covers, sunshade covers on chairs.
  • [0029]
    Thus, improved selferecting structures with greater stability and improved form are disclosed. While embodiments and applications of this invention have been disclosed, it would be apparent to those, skilled in the art, that many more modifications are possible without departing from the inventive concepts herein. The invention, therefore is not to be restricted, except in the spirit of the appended claims.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3990463 *Oct 17, 1975Nov 9, 1976Lowell Robert NormanPortable structure
US5163461 *Oct 17, 1991Nov 17, 1992Ivanovich Michael KSelf-erecting shelter
US5396917 *Feb 3, 1994Mar 14, 1995Hazinski; Daniel P.Self erecting high top tent
US5452934 *Jan 19, 1995Sep 26, 1995Zheng; YuAutomobile sunshield having figure-8 support loop
US5845697 *Sep 15, 1997Dec 8, 1998Patent Category Corp.Spring loop with protective covering
US6216716 *May 14, 1997Apr 17, 2001Eberhard Gobel Gmbh & Co.Mosquito net
US6302127 *Oct 28, 1999Oct 16, 2001Charles F. GaytonPortable structure
US6311709 *Dec 23, 1999Nov 6, 2001Billwin Auto Accessories, Ltd.Self-erecting, collapsible and foldable dome structure
US6502596 *Jun 28, 2001Jan 7, 2003Thomas C. DanaherPortable fabric structure
US6694994 *Mar 28, 2000Feb 24, 2004Patent Category Corp.Collapsible structures
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7648421Jan 19, 2010William Young YoonChipping net
US7931039 *Apr 26, 2011Wei Hen YangFoldable frame structure
US20080169015 *Apr 25, 2007Jul 17, 2008Wei Hen YangFoldable frame structure
US20080194350 *Feb 13, 2008Aug 14, 2008William Young YoonChipping net
US20100089429 *Sep 29, 2009Apr 15, 2010Wei Hen YangFoldable Frame Structure
Classifications
U.S. Classification135/126
International ClassificationE04H15/40
Cooperative ClassificationE04H15/40
European ClassificationE04H15/40