Tent – canopy – umbrella – or cane – Portable shelter
Patent
1982-12-06
1985-08-27
Apley, Richard J.
Tent, canopy, umbrella, or cane
Portable shelter
135115, A45F 100, E04B 1347
Patent
active
045372101
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to an improved shelter.
BRIEF SUMMARY OF THE INVENTION
The general object of the invention is to provide a shelter such as a shade to give protection from the sun's heat, or a shelter of the nature of a tent, the shelter being particularly simple and economical to manufacture and capable of being quickly and easily erected, or taken down and folded for transport or storage.
Woven fabrics under load behave in different ways depending on their inherent characteristics, and they may be grouped as being either stable or unstable on the bias. Those fabrics which are unstable on the bias are capable of being readily stretched or extended in a direction diagonal with respect to the weave of the fabric, those that are stable on the bias resisting such stretching or extension.
The present invention resides broadly in a shelter including a cover having substantially rectangular corner sections of fabric which is unstable on the bias, means for supporting the cover at the innermost corners of the corner sections, tensioning means, and means for attaching the tensioning means to the outermost corners of the corner sections to stretch such corner sections on the bias in a downward direction relative to the point or points at which the shelter cover is supported.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
In order that preferred embodiments of the invention may be readily understood and carried into practical effect, reference is now made to the accompanying drawings wherein:
FIG. 1 is a perspective view of a shelter according to the invention and erected for use,
FIG. 2 is a plan view of the shelter shown in FIG. 1,
FIG. 3 is a perspective view of a shelter according to another embodiment of the invention,
FIG. 4 is a perspective view of a further embodiment of the invention,
FIG. 5 is a broken-away perspective detail drawing showing the central part of the shelter shown in FIG. 4, and
FIG. 6 is a perspective detail drawing showing, from inside, a corner of the shelter illustrated in FIGS. 4 and 5.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring initially to FIGS. 1 and 2 of the drawings, a shelter cover is made of four equal square sections 10, cut from a fabric which is unstable on the bias. The shelter may be for affording shade protection, the fabric employed being of the open-wave type commonly known as "shade cloth", woven of flat filaments of a plastics material. The four square sections, which constitute corner sections, are sewn together to form the four corners of a square cover the joins being reinforced by narrow strips 11 of non-stretching material sewn in place. The fabric cover is bordered by an edging 12 of any suitable flexible material which is resistant to stretching, such as a plasticised fabric which is stable on the bias. A grommet with an eye, indicated at 13, is provided at each of the four corners of the shelter cover, and a central reinforced grommet and eye 14 is provided in the cover at the junction of the four fabric corner sections 10.
The shelter cover is supported by a primary support pole 15, which may consist of coaxially interfitted metal tubular sections of which the uppermost has a reduced-diameter upwardly extending pin 16 engaging closely in the central eye 14 of the shelter. Guy ropes 17 are secured to the four corner eyes at 12 and are tensioned and made fast to pegs 18 driven into the ground.
The tension of the guy ropes 17 on the corner sections 10, which are unstable on the bias, results in these four corner sections being stretched or extended diagonally so that the shelter cover which originally was of flat square shape assumes a somewhat pyramidal shape.
Instead of using a primary support pole 15, the shelter cover may be centrally suspended by a rope from a tree branch or overhead structure.
In the embodiment of the invention shown in FIG. 3, the shelter cover includes a rectangular central transverse section 20 of a fabric or other pliable material which is stable on the bias, and to eac
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patent: 1449689 (1923-03-01), Muehleisen et al.
patent: 2051643 (1936-08-01), Morrison
patent: 2251624 (1941-08-01), Foree et al.
patent: 2497596 (1950-02-01), Frieder et al.
patent: 2848233 (1958-08-01), Wynn
patent: 3060949 (1962-10-01), Moss
patent: 3202193 (1965-08-01), Ware
patent: 4075723 (1978-02-01), Bareis et al.
Apley Richard J.
Crow S. R.
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