US 4,055,846 AGranted

Film cartridge anti-tilting arrangement

AssigneeMinolta Camera Kabushiki Kaisha

InventorsAkira Yamanaka, Toshiaki Matsumoto

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Abstract

A camera has a cover member for opening and closing a film cartridge-retaining chamber, and a detecting member movable to effect automatic setting of the film sensitivity or automatic change-over of a filter. The film cartridge has a signal element on its side wall of a predetermined size which may be engaged by the detecting member when the film cartridge is charged into the camera for effecting the automatic setting of the film sensitivity or of the automatic change-over of a filter. After the detecting member has engaged the signal element, and thus tends to tilt the film cartridge, the detecting member is moved in a direction away from the signal element due to a closing operation of the cover member, or the detecting member is released from a force which urges the detecting member toward the signal element, thereby eliminating the influence of the force acting to tilt the film cartridge.

Claims9

Dependent claims

A camera having a chamber open at one end for the reception of a film cartridge, a cover mounted on the camera for closing said open end of said chamber, an arrangement on said camera operable upon the closing of said cover for avoiding any tilting of the cartridge upon insertion thereof into said chamber and for controlling an exposure condition of the camera depending on the species of the film such as the film sensitivity contained within the cartridge which has on a side wall thereof a signal element of a selected size corresponding with the species of the film, said arrangement comprising:

a movable detecting member extending toward said open end;
spring means on the camera urging said detecting member for movement toward said open end;
an adjusting member mounted for movement together with said detecting member for controlling an exposure condition of the camera;
and
release means for actuating said detecting member for movement thereof against the force of said spring means away from said open end upon the closing of said cover, said release means including a release lever extending partly outwardly of said open end and being mounted for movement away from said open end upon the closing of said cover;
whereby any tilting of the cartridge inserted within said chamber is avoided by the release of the force of said spring means acting against the signal element having a predetermined size causing it to bear againt said detecting member.

3 more elements

Dependencies are inferred from the claim text.