To provide an outer frame that allows a front frame open switch to operate even if the front frame open switch in a Pachinko machine is mounted in a different position.

A contact fixture 50 to be brought into contact with the distal end of a rod 61 of the front opening switch 60 (Figure 6) is mounted on a right side panel 21. The contact fixture 50 includes a base 51 and a contact part 52 projecting to the left from the front end of the base 21. A slit 21e is formed in the vertical direction on a panel surface 21a of the right side panel 21. Bolts 53 are inserted into bolt insertion holes 54 on the base 21. Each bolt 53 projects through the slit 21e from a panel surface 21q on the inner side. A nut (not shown) is screwed with each of the projecting bolts 53.