| 摘要 |
PROBLEM TO BE SOLVED: To provide a binding component capable of preventing damage to hinge parts.SOLUTION: A binding component 1A includes engagement parts 22R and 22L to be engaged with each other by an operation to open and close a first ring arm part 20R and a second ring arm part 20L, which are disposed at a location at which the first arm part 20R and a ring back part 20 each constituting a ring part 2A are coupled to each other, and at a location at which the second ring arm part 20L and the ring back part 20 are coupled to each other. An engagement owing to concave and convex shapes in the engagement parts 22R and 22L is to receive load, for example, upon application of an external force, thereby reducing damage to hinge parts 21R and 21L. |
