Abstract: There is provided a jaw crusher capable of making unnecessary repair of abrasion or settling of a contact surface between a side frame receiving plate provided on a side frame receiving a crushing reaction caused by crushing of rock or the like, and a toggle block wedge supporting the side frame receiving plate through a toggle block. A liner mounting groove 12a is provided in a lower surface of a side frame receiving plate 12, and a liner 15 comprising a pressure receiving plate 15a fitted in the liner mounting groove 12a and a vertical plate 15b in contact with a surface on the swing jaw side of the side frame receiving plate 12 is mounted on the side frame receiving plate 12 by use of a liner latch 16 having a portion in contact with the upper surface of the side frame receiving plate 12 and the surface on the counter swing jaw side so as to replace only the liner 15.

Abstract: A jaw crusher in which in adjusting an outlet gap, manual releasing and applying operations for a tension force of a tension rod are not necessary, and repair of rough of a contact surface between a toggle block and a wedge and frequency of replacement thereof can be reduced. An outlet gap adjusting apparatus for automatically adjusting an outlet gap, the apparatus capable of securing a space required for maintenance on the back frame side of a swing jaw. A tension spring 21 for applying a tension force to a tension rod is compressed on the counter swing jaw 6 side of a back frame 4 of the jaw crusher 1, and a tendon spring compression cylinder 23 for releasing a compression force is provided.