Abstract:
A semimanufactured product of a stopper includes: a plate-shaped bridging portion; a first curved portion extending from one end portion of the bridging portion integrally; and a second curved portion extending from the other end portion of the bridging portion integrally, and an entirety of the semimanufactured product is formed in a C-shape. The first curved portion includes a first locking part at the end portion. The second curved portion includes a second locking part that engages with the first locking part at the end portion. The first locking part includes a convex-shaped convex portion and a pair of receiving portions positioned so as to sandwich the convex portion. The second locking part includes: a concave-shaped concave portion which can accommodate the convex portion; and a pair of projecting portions positioned so as to sandwich the concave portion.
Abstract:
A semimanufactured product of a stopper includes: a plate-shaped bridging portion; a first curved portion extending from one end portion of the bridging portion integrally; and a second curved portion extending from the other end portion of the bridging portion integrally, and an entirety of the semimanufactured product is formed in a C-shape. The first curved portion includes a first locking part at the end portion. The second curved portion includes a second locking part that engages with the first locking part at the end portion. The first locking part includes a convex-shaped convex portion and a pair of receiving portions positioned so as to sandwich the convex portion. The second locking part includes: a concave-shaped concave portion which can accommodate the convex portion; and a pair of projecting portions positioned so as to sandwich the concave portion.