Patent ID: 7267150

Claim:
An apparatus for manufacturing instant photographic film units each including a mask sheet having an image frame and two sheets, one of which has a photosensitive layer, laminated and bonded together, and a developing liquid container disposed in a predetermined position for supplying a developing liquid between the two sheets to produce an image, comprising: member supply stations for supplying said mask sheet and said two sheets; bonding stations for bonding said mask sheet and said two sheets together in a predetermined laminated state, wherein said mask sheet and said two sheets are bonded together to form a continuous web; a cutting station for cutting off said continuous web into self-developed instant photographic film units of a predetermined length, such that said mask sheet and said two sheets are cut at said cutting station; a stacking station for automatically stacking a predetermined number of instant photographic film units; and a packing station for automatically placing the stacked instant photographic film units in a film pack, and wherein said film pack has a pack casing storing the instant photographic film units therein, a light shielding plate placed in said pack casing in facing relation to exposure surfaces of the instant photographic film units in said pack casing, and a lid fused to said pack casing, further comprising, light shielding plate holding means for holding said light shielding plate in said pack casing in spaced relation thereto when said lid is ultrasonically fused to said pack casing.