Delta-shaped umbrella having a spring-loaded hub

A delta-shaped umbrella apparatus for sun-shading or shielding a user from the rain, the apparatus comprising:

• a hub configured for receiving a handle, the hub further configured to have a first spring receptacle and a second spring receptacle;
• a first spring having a first coiled portion, a first lower anchoring portion, and a first upper anchoring portion;
• a second spring having a second coiled portion, a second lower anchoring portion, and a second upper anchoring portion;
• the first spring receptacle having a first spring chamber configured to hold the first coiled portion, a first anchoring hole configured for the first lower anchoring portion to be inserted therethrough, and a first slot;
• the second spring receptacle having a second spring chamber configured to hold the second coiled portion, a second anchoring hole configured for the second lower anchoring portion to be inserted therethrough, and a second slot;
• a first rib anchored to the first upper anchoring portion of the first spring;
• a second rib anchored to the second upper anchoring portion of the second spring;
• wherein the first slot is configured to allow the first rib to swing through a first predetermined range of motion relative to the hub, and the second slot is configured to allow the second rib to swing through a second predetermined range of motion;
• and
• wherein the first predetermined range of motion and the second predetermined range of motion define substantially similar arcs.

A delta-shaped umbrella apparatus for sun-shading or shielding a user from the rain, the apparatus comprising:

• a hub configured for receiving a handle, the hub further configured to have a plurality of spring receptacles;
• a plurality of springs, each spring having a coiled portion, a lower anchoring portion, and an upper anchoring portion;
• each spring receptacle having a spring chamber configured to hold the coiled portion, at least one anchoring hole configured for the lower anchoring portion to be inserted therethrough, and a slot;
• a plurality of ribs anchored to the upper anchoring portion of the plurality of springs;
• wherein the slots are configured to allow the at least one rib to swing through a predetermined range of motion relative to the hub;
• and
• wherein the predetermined range of motion defines an arc extending from a position substantially parallel to the handle to a position substantially perpendicular to the handle.