GB1569825A

GB1569825A - Aerodynamic wind and rain screen

Info

Publication number: GB1569825A
Application number: GB113777A
Authority: GB
Original assignee: KARNAUCH W
Current assignee: KARNAUCH W
Priority date: 1978-01-11
Filing date: 1978-01-11
Publication date: 1980-06-18

Description

(54) THE AERO-DYNAMIC WIND AND RAIN SCREEN (71) 1 WOLODYMYR KARNAUCH (British) 52 1 Mount Pleasant London, W.C.1. do hereby declare the invention, for which I pray that a patent may be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement: This outdoor equipment is designed to function on aero dynamic principle for an efficient protection from wind and rain when on holidays, fishing, picnicing or sunbathing.

The object of this invention is to provide a wind and rain screen which can be easily erected by one person (even in a strong wind) on any suitable surface in less than five minutes.

This invention relates to a wind and rain screen incorporating a sheet of flexible material the fiat shape of which is such that it has an iscoseles triangular centre portion with each of the equal sides thereof common with and connected to a side of a respective one of two triangular wing portions wherein the length of each of the respective sides of the triangular wing portion, which meet at the vertex of the iscoseles centre portion is greater than that of one of the equal sides of the said iscoseles triangular centre portion and wherein at least one anchoring means is provided on each of the edge portions of the triangular wing portions which meet at the said vertex.

Such wind and rain screen can be made from a flexible, woven or non woven material with wind breaking and/or water resisting properties, the flat shape of which incorporates three panels (I.II.III Fig. 1) each having the shape of an acute angled iscoseles triangle, joined together with their equal sides, side by side, to meet at a common vertex, and two panels (A and B Fig. 1) each forming an obtuse angled triangle, one of which is joined to the base of each outer acute angled triangle.

The necessary shape of this obtuse angled triangle is achieved by extending the straight line, running from the common vertex along the pariphery, by such an amount as to give the main tension line (2,4,5,6, Fig. 2) a balance overlap of about 30 in which case the length of the wing side from point 3 to point 2 may amount to about 2/3rds. of the height of the supporting poles or frame.

A practical embodiment of the invention is illustrated in the accompanying drawings as follows: Fig. 1 illustrates a flexible sheet laid out on the ground ready for erection.

Fig. 2 shows the device in perspective when it is erected and ready for use and Fig. 3 shows the angle of elevation of any side of this windscreen, which (depending on size) can be between 40 and 70" to the horizontal.

Loops or the equivalent (for pegs and poles) are attached to the three corners of the sheet (1,2,6. Fig. 1) and at the seam ends (4,5, as Fig. 1), and preferably at the seam ends 3,7.

Loops 3 and 7 additionally induce that special ability ob stronger adhesion to the ground, the stronger the wind blows thus eliminating unwanted draughts.

Preferably, the triangular portions I.II.III are congruent iscoseles triangles and the angles 6.5.7. and 3A2. of wings A and B respectively are equal to 30". Preferably also the angle of elevation of the centre portion of the erected screen is between 40 and 70" to the horizontal.

For the erecting of this wind and rain screen, two poles are needed to support it and five pegs to anchor it to the ground, i.e. the screen is laid out flat on the ground as Fig. 1 with the loop 1 directed against the wind and fixed by a peg to the ground. Getting hold of loop 2 and stretching it even, one anchors this to the ground. Now a peg is inserted into loop 3. To continue, take one pole, hook it into loop 4 and put it upright, still holding on to the edge of the screen, proceed to loop 6, stretch it equally from 1 and from loop 5 and then pin it down to the ground. Now put a peg into loop 7. Adjust the poles if necessary and the structure is ready for use, providing often desirable shelter from wind and rain alike. A frame may be used to hold the shelter erect as an alternative to the poles.

Claims

WHAT I CLAIM IS:

1. A wind and rain screen incorporating a sheet of flexible material, the flat shape of which is such that is has an iscoseles triangular centre portion with each of the equal sides thereof common with and connected to a side of a respective one of two triangular wing portions wherein the length of each of the respective sides of the triangular wing por -tions which meet at the vertex of the iscoseles centre portion is greater than that of one of the equal sides of the said iscoseles triangular centre portion and wherein at least one anchoring means is provided on each of the edge portions of the triangular wing portions which meet at the said vertex.

2. A wind and rain screen as claimed in claim 1 wherein the flexible material has wind and/or water resisting properties.

3. A wind and rain screen as claimed in any of the preceding claims wherein the anchoring means comprises loops or the equivalent positioned at said vertex, at the corners of the wing portions opposite the respective said equal sides, and at a further position on each wing intermediate the vertex and said corners.

4. A wind and rain screen as claimed in any of the preceding claims wherein the angle of each of the wing portions adjacent the base angles of the centre portion exceeds the base angle by 30

5. A wind and rain screen as claimed in any of the preceding claims, which when erected on supports, holding the base of the centre portion above the ground, and with the sides of the wing portion, which meet at the vertex of the centre portion, laying on the ground, the bisector of the centre portion vertex angle is inclined to the horizontal at an angle between 40 and 70".

6. A wind and rain screen as claimed in any of the preceding claims, in which each of the wing portions are formed by a portion of congruent triangular shape to that of the centre portion and, which are joined along one of their equal sides to a respective one of the equal sides of the centre portion and wherein a further obtuse angle triangular portion is joined by a seam to the base side of each of the congruent side portions so that a side of the obtuse angled triangular portion is in line with the outer sides of the congruent side portions and forms the respective sides of the wing portions meeting at the vertex.

7. A wind and rain screen as claimed in any of the preceding claims and supported in its erected condition by poles or a frame.

8. A wind and rain screen as claimed in claims 6 and 7 wherein the said sides of the obtuse angled triangular portion forming the sides of the wing portions meeting at the vertex, are two thirds of the height of the supporting poles or frame.

9. A wind and rain screen substantially as herein before described and illustrated in the accompanying drawings.