To secure the length of each leg part, even if the size of a pressure plate in the traveling direction of a film is small and to press the pressure plate with a fixed stroke and specific elasticity by arranging spring legs for energizing the pressure plate in a direction away from a rear cover, in directions perpendicular to adjacent spring legs on both sides.

When the rear cover for a camera is closed, the pressure plate for pressing the film on a film guard rail is supported by a pressure plate spring 1. The pressure plate spring 1 is constituted in such a manner that four spring legs 14-17 for energizing the pressure plate in the direction away from the rear cover are integrally molded. Each of the spring legs 14-17 is arranged to face into the direction perpendicular to the adjacent spring legs on both sides. When such a constitution is adopted, even if the respective spring legs 14-17 are made long to sufficiently secure a stroke and elasticity, interference with the other spring legs is prevented. Further, it is preferable that out of four spring legs 14-17, two spring legs facing each other are arranged in parallel with each other and two spring legs of the rest are arranged in the directions perpendicular to the above-mentioned two spring legs.