US 6,275,662 B1 · Film cartridge loader for camera

Abstract

A film cartridge loader for a camera includes a film cartridge chamber having an opening into which a film cartridge can be loaded, a film cartridge chamber lid, a lid locking unit, a lid close detecting unit, an ejecting unit, a film cartridge interceptive door opening/closing unit, a moving unit, a movement detecting unit, a driving source, and a driving control unit. The film cartridge chamber lid is movable for opening or closing the cartridge chamber opening. The lid locking unit locks the film cartridge chamber lid in a closed state. The lid close detecting unit detects that the film cartridge chamber lid is locked by the lid locking unit. The ejecting unit ejects the film cartridge from the film cartridge chamber. The film cartridge interceptive door opening/closing unit opens or closes the interceptive door of the film cartridge. The moving unit moves the ejecting unit responsively to opening actions performed by the film cartridge interceptive door opening/closing unit. The movement detecting unit detects a movement made by the moving unit. The driving source generates driving force by which the film cartridge interceptive door opening/closing unit is driven. The driving control unit controls the driving performed by the driving source in response to an output of the lid close detecting unit and an output of the movement detecting unit.

Claims16

Dependent claims

A film cartridge loader for a camera, comprising:

a film cartridge chamber having an opening through which a film cartridge having an interceptive door is receivable into an interior of said film cartridge chamber;
an interceptive door open/close member drivable to open or close an interceptive door of a film cartridge;
a first member moveable in conjunction with said interceptive door open/close member;
a second member shiftable from a first position where it is not engageable with said first member to a second position where it is engageable with said first member when a film cartridge is received into said film cartridge chamber, said second member being shiftable to a third position from said second position by said first member and also lockable by said first member in said third position when said interceptive door open/close member is driven in a direction to open said interceptive door;
and
a detection switch having a changeable switching state, said changeable switching state changing when said second member shifts to said third position from said second position to indicate that a film cartridge has been received in said film cartridge chamber.

3 more elements

A film cartridge loader for a camera, comprising:

a film cartridge chamber having an opening through which a film cartridge having an interceptive door is received into an interior of said film cartridge chamber;
a film cartridge chamber lid moveable to open or to close said opening;
a chamber lid open/closed state detection member to detect whether said film cartridge chamber lid is open or closed;
an interceptive door open/close member for opening or closing an interceptive door of a film cartridge;
a first member moveable in conjunction with said interceptive door open/close member;
a second member shiftable from a first position where it is not engageable with said first member to a second position where it is engageable with said first member when a film cartridge is received into said film cartridge chamber, said second member being engageable with a film cartridge;
a film cartridge loading detection switch for detecting a film cartridge in said film cartridge chamber, said switch having a changeable switching state;
a driving source for driving said interceptive door open/close member;
and
a driving control unit for controlling said driving of said driving source to drive said interceptive door open/close member in a direction to open said interceptive door of said film cartridge received in said film cartridge chamber when said chamber lid open/close state detection member detects that said film cartridge chamber lid is closed,
wherein said second member is displaced from said second position to a third position by said first member to change said switching state of said film cartridge loading detection switch is changed to confirm that a film cartridge has been received in said film cartridge chamber when driving said interceptive door open/close member in a direction to open an interceptive door of a film cartridge received in said film cartridge chamber.

8 more elements

Dependencies are inferred from the claim text.

Film cartridge loader for camera

Life of this patent

Film cartridge loader for camera

Life of this patent

Abstract

Claims16