Device for detecting remaining quantity of rolled papers
AssigneeJapan CBM Corporation
InventorHitoshi Sato
Life of this patent
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Abstract
A device for detecting remaining quantity of rolled papers has housing having a bottom for supporting a rolled paper. Optical detectors are provided for detecting a peripheral position of the rolled paper supported on the bottom when the peripheral position approaches an inner end of the paper and for generating an output signal. A positioning lever is provided for positioning the detectors at a position dependent on a radius of a core of the rolled paper. A control circuit responds to the output signal for informing that the rolled paper reaches the inner end.
Claims3
A device for detecting a remaining quantity of rolled papers which are classified according to the diameter of a core of the rolled paper, the device comprising:
- a housing having a bottom for supporting a rolled paper;
- optical detector means provided to be moved along a line so that the position of the optical detector means changes in a radial direction of the rolled paper supported on the bottom when the optical detector means is moved;
- the optical detector means being provided for generating an output signal dependent on existence of an axial side face of the rolled paper;
- positioning means for positioning the optical detector means at a position dependent on the diameter of the core of the roller paper;
- and
- a control circuit for informing the end of the rolled paper in accordance with disappearance of the output signal dependent on nonexistence of the side face.
Dependencies are inferred from the claim text.