Question

if you had to design an umbrella what would be the materials you will use and why

Answer 1

First, the shaft—whether wood, metal, or fiberglass—is made, and then the ribs and stretchers are assembled. Next, the nylon canopy is hand-sewn in sections (a typical umbrella has 8 sections). were bulky and awkward. Rounded ribs and stretchers are frequently seen today only on parasols and patio umbrellas. I would use this process to make a umbrell

Answer 2

The shaft ⇒ The stick umbrella will usually begin its life as a shaft of either wood, steel, or aluminum, approximately 3/8 inch (.95 centimeter) thick. Fiberglass and other plastics are occasionally used, and in fact they are common in the larger golf umbrella.

Ribs and stretchers ⇒ The ribs and stretchers are assembled first, usually from "U" shaped or channeled steel or other metal. Ribs run underneath the top or canopy of the umbrella; stretchers connect the ribs with the shaft of the umbrella. The ribs are attached to the shaft of the umbrella by fitting into a top notch—a thin, round nylon or plastic piece with teeth around the edges, and then held with thin wire. The stretchers are connected to the shaft of the umbrella with a plastic or metal runner, the piece that moves along the shaft of the umbrella when it is opened or closed.
Next, the ribs and stretchers are connected to each other with a joiner, which is usually a small jointed metal hinge; as the umbrella is opened or closed, the joiner opens or closes through an angle of more than 90 degrees.
There are two catch springs in the shaft of each umbrella; these are small pieces of metal that need to be pressed when the umbrella is slid up the shaft to open, and again when the umbrella is slid down the shaft for closing. Metal shafts are usually hollow, and the catch spring can be inserted, while a wood shaft requires that a space for the catch spring be hollowed out. A pin or other blocking device is usually placed into the shaft a few inches above the upper catch spring to prevent the canopy from sliding past the top of umbrella, when the runner goes beyond the upper catch spring.

Canopy ⇒ The cover or canopy of the umbrella is hand sewn in individual panels to the ribs. Because each panel has to be shaped to the curve of the canopy, the cover cannot be cut in one piece.
The tip of the umbrella that passes through the canopy can be covered with metal (a ferrule) that has been forced over and perhaps glued to the tip, or left bare, depending on the desire of the manufacturer. The handle is connected to the shaft at the end of the process, and can be wood, plastic, metal, or any combination of desired ingredients. Though handles can be screwed on, better-quality umbrellas use glue to secure the handle more tightly.

The end tips of the umbrella, where the ribs reach past the canopy, can be left bare or covered with small plastic or wood end caps that are either pushed or screwed on, or glued, and then sewn to the ends of the ribs through small holes in the end caps.

Finally, the umbrella is packaged accordingly and sent to customers.