Device for detecting whether or not one end of a belt-shaped sheet is locked
AssigneeFuji Photo Film Co., Ltd.
InventorsMikio Kogane, Seiichi Yamazaki
Life of this patent
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Abstract
A device for detecting whether or not one end of a belt-shaped sheet is locked having a depressing bar for depressing one end of a belt-shaped sheet perpendicular to the surface of an end thereof when the end is at a locking position where to be locked by an end locking member. A detector is operated when the depressing bar is moved a predetermined distance to produce a signal representative of whether the end of the belt-shaped sheet is satisfactorily locked. The depressing bar is operated in response to a signal representing when the end of the belt-shaped sheet comes to the locking position.
Claims9
A device for detecting whether or not an end of a sheet is locked for conveyance comprising:
- means for engaging and locking said end of said sheet to convey it from one position to another under tension;
- reciprocating means moving orthogonal to said sheet for depressing one end of said sheet in a direction generally perpendicular the surface of said sheet when said sheet is moved into a locking position;
- and
- detector means responsive to movement of said reciprocating means for depressing to produce an output signal representative of whether said sheet is engaged and locked to said engaging means.
Dependencies are inferred from the claim text.