when the center pin is collapsed by the external force, corner parts (33) at intersections between the slit (31) and the first cutout parts (32) are projected to securely produce a short-circuit.
当因外力变平时,割线(31)与第一切口(32)的交叉点 处的边角(33)突出,并且安全地产生短路。
the center pin (30) comprises a slit (31) in the longitudinal direction, and first cutout parts (32) crossing perpendicularly to the slit (31).
中心引脚 (30)具有在纵向上提供的割线(31)以及垂直横穿割线(31)的第一切口(32)。
the center pin (30) is inserted into the center of a roll manufactured by laminating a positive pole and a negative pole on each other through a separator and spirally winding the laminated poles.