| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in which: as to a roller and its pressure member, when the pressure member has no engaged part in a rotation direction, assembly workability with the roller attached is poor, and when a rotary shaft of the roller is arranged in a direction reverse to a rotary shaft of a member having the rotary shaft, it is difficult to assemble.SOLUTION: A focal plane shutter comprises: at least one blade driving member that operates a shutter blade; at least one setting member that operates the blade driving member to a setting position; a roller that is rotatably provided for facilitating a setting operation between the blade driving member and the setting member; and the pressure member of the roller that has an engaged part with the blade driving member. In addition to an attached shaft of the roller, the focal plane shutter has an engagement part with the pressure member, and the pressure member is rotated around the engagement part to thereby engage with the engagement part in the rotation direction. |
