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Publication numberUS3405721 A
Publication typeGrant
Publication dateOct 15, 1968
Filing dateSep 26, 1966
Priority dateSep 26, 1966
Publication numberUS 3405721 A, US 3405721A, US-A-3405721, US3405721 A, US3405721A
InventorsJames E Crosier, Jon A Blanchette, Robert F Romanowski
Original AssigneeSporting Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Collapsible and portable cabana
US 3405721 A
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Description  (OCR text may contain errors)

Oct. 15, 1968 .1. E. CROSIER ET AL 3,405,721


and Robert F. Romanowski, Rochester, N.Y., assignors,

by mesne assignments, to R. J. Sporting Inc., Rochester,

N.Y., a corporation of New York Filed Sept. 26, 1966, Ser. No. 582,043 6 Claims. (Cl. 135-7.1)

ABSTRACT OF THE DISCLOSURE The cabana comprises U-shaped frame members whose legs are connected at their extremities to pivot about a common axis between a collapsed position, and an erected position in which the two outer members are angularly spaced about said axis slightly greater than 90 from one another. The two legs of each frame member are foldable about spaced axes that extend at right angles to the firstnamed axis; and two collapsible links extend between the legs of adjacent frame members rigidly to hold the members in their erected positions.

This invention relates to portable shelters and more particularly to a portable cabana or beach shelter.

Heretofore efforts have been made to provide a portable, collapsible beach cabana which could serve as a satisfactory shelter from the sun, wind and rain. A major disadvantage of prior, collapsible cabanas of the type described, is that each usually includes a cumbersome frame for supporting the cabana in its erected position. Moreover, even when collapsed, such a cabana has an overall bulk so great that it cannot be conveniently transported or stored.

One object of this invention is to provide a lightweight, portable shelter, which is relatively inexpensive, and substantially easier to manufacture than prior, like shelters.

A further object of this invention is to provide an improved portable cabana having a collapsible frame, which is extremely simple and easy to manipulate in order either to erect or collapse the cabana.

An additional object of this invention is to provide an improved cabana which can be collapsed into a relatively small, compact form, and which can be easily carried about or stored.

Another object of this invention is to provide a collapsible cabana, and a flexible container therefor in which the cabana may be stored when not in use, and which may be used to help anchor the cabana when the latter is erected.

Other objects of the invention will be apparent hereinafter from the specification and from the recital of the appended claims, particularly when read in conjunction with the accompanying drawings.

In the drawings:

FIG. 1 is a perspective View of a collapsible cabana made in accordance with one embodiment of this inven tion, the cabana being illustrated in its erected position;

FIG. 2 is a side elevational View of the collapsible frame, which forms part of the cabana, the frame being illustrated in its erected position;

FIG. 3 is a slightly enlarged side elevational view similar to FIG. 2, but showing the frame partially collapsed;

FIG. 4 is a slightly enlarged plan view of this frame showing it in its completely collapsed position; and

FIG. 5 is a greatly enlarged, fragmentary sectional view taken along the line 55 in FIG. 3 looking in the direction of the arrows.

The shelter or cabana disclosed herein comprises a flexible, waterproof cover, which is secured to a collapsi- "ice ble frame constructed of light-weight, tubular aluminum. Three, similar, generally U-shaped frame members are pivotally connected to one another at their free ends for movement about a common horizontal axis between collapsed positions in which they are disposed in registry with one another, and erected position in which collapsible links between the members hold the latter releasably in equi-angularly spaced positions about the common horizontal axis. When the cabana is erected, one of the outer frame members is disposed horizontally on the ground, and the other outer member is inclined diagonally upwardly and forwardly at an obtuse angle to the horizontal member. The flexible cover is stretched tautly at this time over the erected frame members; and the entrance to the cabana is framed by the outer member that extends diagonally upwardly.

When the cabana is collapsed, the legs of its U-shaped members fold inwardly toward one another about a further pair of spaced, parallel axes, which extend at right angles to the horizontal pivotal axis of the members, so that the folded legs overlap one another and the central, transverse sections of each frame member.

Referring now to the drawings by numerals of reference, the frame 10 of the cabana comprises three, generally U-shaped members 12, 13 and 14. Each member 12, 13, and 14 comprises a tubular cross bar 16, 17 and 18, respectively, and a pair of spaced, parallel tubular legs 20, 21 and 22, respectively, which are pivotally connected to opposite ends of their respective cross bars by pins or rivets 24. Opposite ends of each cross bar 16, 17 and 18 are stamped or pressed closed as at 26 (FIG. 5) to form thereon semi-circular projections, which, when the cabana is erected, are disposed in shaped relation to like projections 27 formed on the adjacent, inner ends of the associated legs 20, 21 and 22. Secured by each pin 24 in the confronting, semi-circular recesses formed between each pair of projections 26 and 27, are two, semi-cylindrical, plastic plugs or bearings 28 and 29, which have sliding contact with one another when the legs 20, 21 and 22 are pivoted relative to their cross bars 16, 17 and 18.

The frame members 12, 13 and 14 are mounted for pi'votal movement relative to one another about rivets or pins 31, which pivotally connect together the free or outer ends of the legs 20, 21 and 22 at opposite sides, respectively, of the frame 10. These pins 31 are disposed in laterally spaced, coaxial relation with one another when the frame 10 is erected as illustrated in FIGS. 1 and 2. The intermediate frame member 13 is collapsibly supported in a diagonal plane, which is equiangularly spaced between the outer frame members 12 and 14, by a pair of tubular, collapsible links 33 a pair of tubular collapsible links 34, each of which is connected at one end to a bracket 36 that is secured to each leg 21 of member 13 adjacent opposite ends of the cross bar 17. The opposite ends of the links 33 and 34 are pivotally connected to brackets 37 and 38, respectively, which are secured on the frame legs 20 and 22, respectively, adjacent opposite ends of the cross bars 16 and 18. The two tubular sections of each collapsible link 33 and 34 are pivotally connected at their inner ends to opposite ends of U-shaped hinge plates 39 and 40, respectively.

Each of two, conventional, collapsible braces 42 is pivotally connected at one end to one end of the cross bar 16 of frame 12, and at its opposite end to one of the legs 20 adjacent the associated bracket 37. Each of two further collapsible braces 44, which are similar to braces 42, is pivotally connected at one end thereof to one end of the cross bar 18 of the frame member 14, and at its opposite end to one of the legs 22 adjacent the associated braoket 38. Each of these braces 42 and 44 is similar to those employed on certain conventional cardtables of the type having foldable legs, and comprises two separate sections having overlapping inner ends that are pivotally connected to one another so as releasa-bly to hold the legs 20 and 22 of the associated frame members 12 and 14 in spaced, parallel relation to one another, when the cabana is erected as illustrated in FIGS. 1 and 2.

Secured at opposite ends thereof to the cross bars 16 and 18 to extend tautly between these bars, and over the bar 17, when the cabana is erected as illustrated in FIG. 1, is a flexible, waterproof, plastic cover 46 such as nylon, or the like. Conventional male snaps 48 are secured to opposite ends of the cross bar sections 16, 17 and 18, and to the outside of each leg 27 adjacent the associated pivot pin 31, so that flexible side flaps or covers (not illustrated) may be removably secured to opposite sides of the frame by means of cooperating female snaps.

To collapse the cabana, the U-shaped plates 3? and 40, the open sides of which face upwardly as shown in FIG. 2, are pulled manually downwardly so that the frame members 12 and 13 pivot about the pins 31 (counterclockwise in FIG. 2) downwardly into the collapsed positions illustrated in FIG. 3. Each leg 20 and 22 is curved as at 50 (FIGS. 2 and 3) adjacent the associated pivot pin 31 so that when the members 12, 13 and 14 are collapsed, they are supported in spaced, parallel registering relation with one another. Also at this time, the nowcollapsed links 33 and 34, and the associated plates 39 and 40, respectively, fold into the spaces provided therefor at opposite sides of the frame between the now-parallel legs 20, 21 and 22 of the collapsed frame members. The braces 42 and 44 are then collapsed manually, and the superposed legs 20, 21 and 22 at opposite sides of the frame are pivoted about the pins 24 inwardly toward the undersides of the cross bars 16, 17 and 18 and into overlapping, folded relation to one another as illustrated in FIG. 4.

At this time the flexible cover 46, and the side flaps if used, are collapsed, and together with the now-folded frame 10, may be enclosed or wrapped in a relatively small, rectangular canvas jacket 52 (FIG. 1). Jacket 52 has a length slightly less than the overall width of the frame 10, when the latter is erected as illustrated in FIG. 1, so that conventional lacings or ropes 53, which extend from the corners of the jacket 52, may be releasably tied to the legs 22 of the frame, when the latter is erected as illustrated in FIG. 1. This stretches the jacket 52 rather tautly between opposite sides of the frame, so that the person using the erected cabana may sit upon the jacket 52, or pile sand or the like on the jacket, so as to anchor the cabana to the ground.

From the foregoing it will be apparent that the collapsible cabana or shelter disclosed herein is relatively simple, and inexpensive to manufacture; is very easy to erect or collapse; and is extremely compact when folded. Preferably the frame members 12, 13 and 14, and the links 33 and 34, are made from tubular aluminum so that the complete cabana will weigh less than five pounds. The outer frame members 12 and 14 are positioned, when the cabana is erected, concentrically with respect to the intermediate frame member 13 so that the cabana may be positioned with either the legs 20 or 22 of the frame members 12 and 14, respectively, disposed horizontally along the ground. In either of these positions, the center of gravity of the cabana is positioned rearwardly of the axial centerline of the pins 31 so that the cabana will tend to remain in either of such positions, and will not roll forwardly on the curved ends 50 of the then horizontally disposed legs 20 or 22, except as the result, perhaps, of a heavy gust of wind. To prevent the cabana from accidentally pitching forward, however, the jacket 52 may be employed to anchor the cabana as above described. The plastic inserts 2 8 and 29, which surround each pin 24, pivot with the respective projections 26 or 27 in which they are seated, and provide excellent bearing surfaces which contribute to the useful life of the frame.

While the invention has been described in connection with a specific embodiment thereof, it will be understood that it is capable of further modification, and this application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains and as may the applied to the essential features hereinbefore set forth, and as fall within the scope of the invention or the limits of the appended claims.

Having thus described our invention, what we claim is:

1. A portable shelter, comprising:

(a) a plurality of generally similar U-shaped members, each comprising a cross bar and a pair of spaced legs, each cross bar having its opposite ends disposed at right angles to the remainder of the cross bar, and each leg being pivotally connected at one end to one end of the associated cross bar to be swung from a collapsed position parallel to its cross bar to an extended position at right angles thereto and vice versa,

(b) pivots connecting the corresponding opposite ends of all said legs together, for movement about an axis at right angles to the axis about which each leg is pivoted to its cross bar,

(c) said pivots being axially aligned whereby said members are connected together for pivotal movement about a common axis between a collapsed position and an erected position,

(d) a pair of collapsible links pivotally connected at opposite ends to each pair of adjacent legs adjacent the points of pivotal connection of said legs to their respective cross bars and operable releasably to hold said members in erected position, and

(e) a flexible cover removably securable to said members to extend tautly therebetween and thereover when said members are in their erected position.

2. A portable shelter as defined in claim 1, having collapsible braces interposed between each of the legs and the cross bars of certain of said members, and movable manually to operative position releasably to hold said legs substantially at right angles to the cross bars of said members.

3. A portable shelter as defined in claim 2, wherein:

(a) in their erected positions the outermost members are disposed at equal acute angles relative to the intermediate member about the first-named axis, and

(b) the center of gravity of the shelter is radially offset from said first-named axis so that either of said outermost members may be disposed horizontally when the shelter is in use.

4. A portable shelter as defined in claim 2, wherein:

(a) the collapsible links are substantially longer than said braces, and

(b) said links are operative, when said braces are in said operative positions, releasably to hold the two outermost of said members at an obtuse angle relative to one another, said angle being slightly greater than and substantially less than 5. A portable shelter as defined in claim 1, wherein:

(a) there are three said members, and

(b) the legs of the outermost members are curved slightly adjacent said pivots to support said outermost members in spaced parallelism with the intermediate member, when said members are collapsed.

6. A portable shelter as defined in claim 5, having:

(a) releasable snap means on said cover, and

(b) cooperating snap means secured to opposite ends of said cross bars, and to the said opposite ends of the legs of at least one of said members, and adapted to register with the snap means on said cover, when 5 6 said members are in their erected positions, releasa- 2,832,361 4/1958 Smith 1377.1 bly to secure said cover to said members. 2,910,078 10/ 1959 Schunck 1357.1

2,960,993 11/1960 Holmstrom 1357.1


1,819,490 8/1931 Weiss 135-71 1,845,814 2/1932 ReiS et a1. 135-5 REINALDO P. MACHADO, Primary Examiner.

References Cited

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1819490 *Mar 14, 1930Aug 18, 1931Max WeissCanopy
US1845814 *Dec 2, 1931Feb 16, 1932Mabel Smith WasserPortable shelter
US2832361 *Mar 18, 1955Apr 29, 1958Smith Stanley EdwardCanopy frame
US2910078 *May 27, 1955Oct 27, 1959Kortenbach & Rauk KommanditgesLawn umbrella
US2960993 *Jan 16, 1958Nov 22, 1960Muskegon Awning And Mfg CompanFolding shelter
CA706186A *Mar 23, 1965Harry D MacyPortable shelter
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3642282 *Apr 28, 1970Feb 15, 1972Frischman ArnoldFoldable goal structure
US4748995 *Jul 12, 1985Jun 7, 1988Cornel Paul NemethTent frame
US5121765 *Jul 6, 1990Jun 16, 1992Macmorris Jr CliffordPortable collapsible enclosure
US5823217 *Apr 10, 1996Oct 20, 1998Greenbest, Inc.Collapsible shelter
US6209558May 14, 1997Apr 3, 2001Guiseppe ViglioneFoldable tent
US7377714 *Apr 3, 2003May 27, 2008Reeves Francis JMechanical joint for collapsible structures
US7703416Jul 25, 2007Apr 27, 2010United Pet Group, Inc.Pet enclosure
US7753003Dec 31, 2008Jul 13, 2010United Pet Group, Inc.Pet enclosure
US7938134 *Mar 28, 2008May 10, 2011Paul AdamsProtective shelter
US8117993Mar 17, 2010Feb 21, 2012United Pet Group, Inc.Pet enclosure
US8657521Jan 13, 2011Feb 25, 2014First Goal LlcCollapsible structures and joints for collapsible structures
US8746179Jan 3, 2013Jun 10, 2014United Pet Group, Inc.Pet enclosure
US8757095Jan 12, 2012Jun 24, 2014United Pet Group, Inc.Pet enclosure
US8826928 *Jul 8, 2011Sep 9, 2014Q-Yield Outdoor Gear Ltd.Foldable tent frame
US20110192437 *Apr 14, 2011Aug 11, 2011Paul AdamsProtective shelter
US20140109946 *Jul 8, 2011Apr 24, 2014Nanqing ZHOUFoldable tent frame
EP0173438A2 *Jul 11, 1985Mar 5, 1986Guiseppe ViglioneA tent frame
WO1997043509A1May 14, 1997Nov 20, 1997Viglione GiuseppeA foldable tent
U.S. Classification135/130, D25/56, 135/906
International ClassificationE04H15/00
Cooperative ClassificationE04H15/003, Y10S135/906
European ClassificationE04H15/00B