This linear actuator structural body (2) is provided with: a casing (60), and a linear actuator (1) which is at least partially disposed in the casing (60). The linear actuator (1) is provided with: a stator (10) a mover (20) disposed so that a first spacing (d1) is present with respect to the stator and an output shaft (30) linked via a connection member (31) to the mover (20). The output shaft (30) and/or the connection member (31) is formed so as to be capable of elastic deformation. The casing has a buffering member (64) provided so as to be capable of being brought into contact with the output shaft (30) and so that a second spacing (d2) is present with respect to the output shaft (30). The second spacing (d2) is greater than or equal to the first spacing (d1).
