| 摘要 |
PROBLEM TO BE SOLVED: To provide a spring element receiving force accurately from a trigger body and capable of keeping sufficient spring force. SOLUTION: The spring element 3 made of a polyolefinic resin is incorporated in a trigger spray A to apply resilient force to the trigger body. The spring element 3 consists of a pair of arcuate bridge parts 31 and the connection part 32 for joining the terminals of the bridge parts and the front ends of the bridge parts 31 can be fitted to the trigger body 2. When compression force acts on the bridge parts 31, resilient force is obtained because arcuate curvature becomes large and the bridge parts 31 are twisted at the same time. Since the trigger body and the spring element are joined by fitting, wasteful backlash is eliminated between both of them and movement or force can be certainly transmitted to each other. Further, the efficient spring force caused by compression and twist can be developed. |
