See Through Umbrella "STU"

Description

FIELD OF THE INVENTION

The present invention relates to a “See Through Umbrella”, which is a garden and beach umbrella with a new designed surface consists of several concentric polygons of fabric stripes of well designed width (vertical depth) and fixed distance separating each adjacent two stripes to allow wind currents to pass through the umbrella's surface easily leading to high degree of stability against blowing wind.

SUMMARY OF THE INVENTION

The present invention is an umbrella provided with several concentric polygons of fabric stripes with a well designed width and a predetermined distance separating each two adjacent stripes (as in FIGS. 1 & 2a, 2b and 2c) to allow wind currents to pass through the surface easily leading to high degree of stability against blowing wind.

The fabric stripes are fixed to a number of ribs by means of fixing and tensioning units, as in FIG. (4).

The fabric stripes cover of the umbrella is capable to obstruct the direct sun ray wherever and whenever the sun is slightly inclined of the summit.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view showing the “See Through Umbrella” which consists of ribs, cover (Polygons of fabric stripes), the main post, the open/close mechanism, fixing/tensioning unit and the base.

FIGS. 2a, 2b and 2c shows a front view, perspective and top view of a “See Through Umbrella” totally covered with a See Through cover.

FIGS. 3a and 3b show a perspective and a top view of to patterns of “See Through Umbrella” with partial see through cover.

FIG. 4a shows the fixing and tensioning unit connected to a rib in close mode. This unit consists of a spring with its upper end connected to the rib while the other end (the lower one) connected to the stripe holder which holds the fabric stripe.

FIG. 4b shows the fixing and tensioning unit connected to a rib in open mode.

FIG. 4c shows a section in the stripe holder and the direction of the force applied by the spring on fabric stripe.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Garden and beach umbrella, usually used for protection from sun, as we need to cover a large area to be used by several persons the umbrella should be large enough to achieve its task. Therefore, the intensive wind currents usually have bad effects on the stability of this kind of umbrellas due to its relatively large covering area.

The expected bad effects of the wind currents can cause either unstable status or a serious damage for umbrella's components

In order to overcome of the bad wind effects against the umbrella, it has been provided with a new designed surface which consists of several concentric polygons of fabric stripes of well designed width (vertical depth) and fixed distance separating each adjacent two stripes to allow wind currents to pass through the surface easily leading to high degree of stability against blowing wind which means reducing or minimizing the bad effects of the wind against the umbrella while it still capable to protect things against direct sun ray.

The “See Through Umbrella” provided with several concentric polygons of fabric stripes as in FIG. 1 all these stripes have a pre-designed width (or vertical depth) and they are parted from each other by a designed distance.

The fabric stripe polygons are mounted to a number of ribs as in FIGS. 1 and 2, by means of a number of “fixing and tensioning units” as in FIGS. 4a, 4b, and 4c, each unit mounting one corner of a polygon to one of the ribs. The fixing and tensioning unit consists of two main parts:

• • The spring: with its upper end connected to the rib while the other end (lower end) is connected to the stripe holder as in FIGS. 4a and 4b. All springs apply a radial push away from the main post of the umbrella to ensure straight tensioned sides of the fabric polygons as in FIG. (4c).
  • The stripe holder which is responsible upon holding the fabric stripe as in FIG. 4c.

The fabric stripes cover of the umbrella is capable to obstruct the direct sun ray wherever and whenever the sun is slightly inclined of the summit.

The “See Through Umbrella” can be either totally covered with a see through cover as in FIGS. 1 and 2 or it can be covered with a partial see through cover as in FIGS. 3a and 3b.