The Sausage U Clips provides a convenient, quick and economical method of assembly of the product, because the combined part of the buckle is molded at the same time when the finished product is produced. It is not necessary to match other locking components such as screws and mesons, as long as the two sides of the combination are required. The buckles can be interlocked with each other. Although the design of the buckle can have a variety of geometric shapes, the principle of operation is roughly the same: when two parts are buckled, the hook-shaped extension of one of the parts is pushed away by the flange portion of the connected part. Until the flange part is completed; and then, by the elasticity of the plastic, the hook-shaped extension is immediately reset, and the groove behind it is immediately embedded by the flange portion of the connected part, and the reverse position is formed immediately. The state of interlocking, such as function, can be divided into two types: permanent and detachable.
The design of the permanent Hog Ring Fastener Clips is easy to install but not easy to remove. The design of the detachable buckle is easy to install and remove. The principle is that the hook-shaped extension of the detachable buckle is provided with an appropriate lead-in angle and a lead-out angle to facilitate the buckle-up and separation. The lead-in and lead-out angles directly affect the force required for the buckle and the separation. The permanent type of buckle has only the introduction angle and no design of the lead angle. Therefore, once buckled, the connected part forms a self-locking state and is not easy to remove.
