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AssigneeBindomatic AB
InventorsSture H. Wiholm, Jan Tholerus, Jan Leczinsky
Estimating the term…
In an apparatus for binding loose sheets in one or more folders there is utilized a regulating circuit means where an inserted folder (F) interrupts a light beam to a photodiode (16) which simultaneously starts a time counter (18) and closes the power supply (via 31) to the heating plate (2), wherewith the binding operation is carried out. The time interval of the timing counter is determined in response to the actual values of the width of the folders and the starting temperature of the heating plate. These values are obtained from a width detector (34, 7, 35) and a temperature detector (28), said values being fed into a microcomputer (19) controlling the timer. When the timer has counted down the time interval to zero, it interrupts the power supply to the heating plate (via 31).
A method of binding sheets in a folder provided with a binding agent with the aid of a thermal binding apparatus comprising the steps of:
Apparatus for binding sheets in a folder (F) provided with binding agent comprising a casing (1) enclosing a heating plate (2), said casing having an opening (4) above the heating plate for insertion of one or more folders with sheets which are to be bound, rear support means (5) and forward support means (6) restricting said opening, the heating plate including an electrical heating element (20) connected to an electrical control circuit for the supply of power thereto, and a starting circuit (15,16) operationally connected to the heating element, said starting circuit being activated by the insertion of the folder or folders into the opening whereby the timer keeps the heating element supplied with power from the insertion instant and during a predetermined time interval which is responsive to the width of the opening and/or the starting temperature of the heating element.
Dependencies are inferred from the claim text.