A crack resistant member including a member body, a first region (33) that is a hollow space provided in the member body to open to a surface of the member body and is configured to dispose a driving part that outputs a pressing force in an extension direction of the space, and a coupling portion that is configured to mechanically couple to the driving part and is formed on an inner wall surface of the first region (33), in which at least the coupling portion is formed from a resin material having a flexural modulus of 2600 MPa or greater as measured in accordance with ISO 178.
一种抗裂构件,包括构件本体、第一区域(33),第一区域是构件本体内设置的中空空间,开口于构件本体的表面,并被配置为放置一个驱动部件,该驱动部件在空间的延伸方向上输出压紧力;以及耦合部分,耦合部分被配置为与驱动部件机械耦合,并形成于第一区域(33)的内壁表面上,其中至少耦合部分是由一种
树脂材料形成的,根据 ISO 178 测量,该
树脂材料的弯曲模量大于等于 2600 兆帕。