Select techniques for direct observation
1. Umbrella radian according to individual demand, some umbrella surface radian is large, like mushroom shape, suitable for single use, this kind of umbrella is more popular in Europe and the United States, the wind resistance is better, and can block the sand;Some umbrellas face small radian, rain range is larger, suitable for many people to support together, but the wind resistance is poor.
2. The umbrella bone is more solid, the quality of the umbrella bone, determines the quality of an umbrella 70%.With the umbrella on the market, the umbrella bone for 6 to 16, the more the umbrella bone, the higher the wind resistance.The umbrella will be more stable if there is a thin elastic thread between the ribs.
3. Vertical umbrella is more durable, folding umbrella is more receptive and portable than vertical umbrella, but if you consider the rigidity, even if there are the same number of umbrella branches, the same material of the vertical umbrella and folding umbrella, the durability of the vertical umbrella will be higher than folding umbrella, because folding umbrella needs folding, the gap between the umbrella and umbrella fabric will be larger, more easily due to the wind and damage.
4. The thread is thick and has many loops. The umbrella interior needs to be sewn with thread to fix the fixed part. If the thread made of fiber is used, such as floss, the effect will be stronger than the general thread.
5. The wire on the beehive is better covered, the hub of the umbrella bone inside the umbrella is called the beehive, the knot of the wire on the beehive is often rusted because of water or moisture, and easy to scratch the user's hand, if there is a plastic sheath protection, can avoid the above situation.
6. Bead tail had better add seam bead tail to be located at the place of umbrella bottom place, if the left picture bead tail is to glue plastic cover directly on the umbrella, set again into the umbrella bone, very easy to fall off and lose, had better choose to have the bead tail that adds seam to be stronger.