| 摘要 |
PROBLEM TO BE SOLVED: To provide an engagement structure hardly generating un-engagement and capable of reducing loads necessary for engagement.SOLUTION: An engagement projection section 53 is formed on a cantilevered elastic piece portion 51 of an engagement unit 50. An engaged section 93 rotates the cantilevered elastic piece portion 51 around a fixed end center from a neutral position by sliding the engagement projection section 53, and when the cantilevered elastic piece portion 51 is elastically restored to the neutral position, is engaged with the engagement projection section 53. The engagement projection section 53 and the engaged section 93 are formed so as not to be brought into contact with each other when the cantilevered elastic piece portion 51 is elastically restored to the neutral position. Further the engagement projection section 53 and the engaged section 93 are formed orthogonally to each other in a moving direction of the engagement unit 50, and when engagement is completed, facing surfaces 54 facing each other are formed so as to be divided into a plurality of stair surfaces continued like up stairs from the side where the engagement projection section 53 and the engaged section 93 approach each other to the separating side in a direction orthogonal to the moving direction of the engagement unit 50.SELECTED DRAWING: Figure 5 |
