Springs
Umbrella springs are a crucial component of umbrella hardware. Their properties enhance the umbrella's mechanical integrity; the spring's elasticity, torsion, pressure, and tension rebound make it more robust and practical. Common umbrella springs include center support springs, Z-shaped positioning springs, umbrella frame pressure springs, and automatic opening and closing tension springs.
Frame
The number of folds in an umbrella refers to the number of times its frame (frame) can be folded. Generally, based on the number of folds, the umbrella market is mainly divided into four categories: straight umbrellas (one fold), two-fold umbrellas, three-fold umbrellas, and five-fold umbrellas. For example, a two-fold umbrella means the frame can be folded twice. The number of folds varies greatly depending on the umbrella's functional design.
First, straight umbrellas, also called one-fold umbrellas, are mainly used for rain or shine, but some are also suitable for both sunny and rainy days. Most umbrella manufacturers produce this type of straight umbrella. Their advantages are that the frame is usually made of steel, making it sturdy and durable; it can even be used as a walking stick by the elderly.
Next, let's introduce two-fold umbrellas. Two-fold umbrellas are generally found in high-end sun umbrellas and parasols. Those familiar with parasols may know that two-fold umbrellas are usually more expensive. This is because they typically have a sturdy frame, use embroidered or imported colored fabrics, and feature exquisite design and good workmanship, thus positioning them in the mid-to-high-end price range. Their main advantages are: excellent quality, beautiful design, easy portability, and excellent wind and sun protection.
Next, let's talk about three-fold umbrellas. These are widely available, and most rain umbrellas and parasols are designed this way. It's a relatively moderate design, understated and unassuming. In terms of material and usability, it's a well-balanced design. It's of good quality, has a long lifespan, provides good sun and wind protection, and is of moderate weight and length. Overall, it's a well-rounded and practical design.
Finally, let's talk about five-fold umbrellas. These umbrellas are known for their compact size and portability. They address the problem of long and heavy rain umbrellas by using resin frames and high-grade aluminum alloy frames. Many parasols are designed to fold in half, just like that.