TAKE-UP SHAFT, FILM UNIT WITH LENS AND PRODUCTION OF FILM UNIT WITH LENS

PROBLEM TO BE SOLVED: To enable to take up film regardlessly of whether or not a factory is provided with a vacuum pump by making a suction hole communicating with a hollow hole whose one end is opened and the other end is closed on a side wall and further making an engaging pawl project onto the side wall. SOLUTION: The suction hole 3c for attaching film to the side wall 3b is bored, and the hollow hole 3d communicating with the hole 3c is formed in an axial direction on a spool 3 being the take-up shaft. Furthermore, the engaging pawl 3f with which the leading edge of the film is engaged is arranged on the side wall of the spool 3. By bringing a vacuum head into contact with one end of the hole 3d and sucking air by the vacuum pump, the air is sucked from the hole 3c through the vacuum head and the hole 3d, and the leading edge of the film is attracted to the side wall 3b of the spool 3. A means for attracting the leading edge of the film to the side wall 3d of the spool 3 is used in the factory provided with the vacuum pump, and a film engaging means by using the engaging pawl 3f, which does not require the vacuum pump, is used in the factory not provided with the vacuum pump.