Method and a device for the operation of a machine for binding sets of pages by gluing

Claim 3

The method as claimed in claim 1 characterized by automatically controlling the power supply to the motor means in response to a signal provided by the sensor.

Claim 4

The method as claimed in claim 1 characterized in that a linear potentiometer sensor is used to provide a signal by having a sliding contact thereof connected with said moving jaw.

Claim 5

The method as claimed in claim 1 characterized in that the supply of the motor means is controlled in response to a signal from the sensor only during motion of the carriage when moving in a direction away from the loading station towards the encasing station.

Claim 6

The method as claimed in claim 1 characterized in that the speed of the motor is so controlled that the motor means is operated at a maximum speed during return motion from the encasing station to the loading station.

Claim 7

The method as claimed in claim 1 characterized in that the supply to the motor means is controlled in such a manner that the motor means is run at a reduced speed when approaching either end of the guide path.

Claim 8

The method as claimed in claim 1 characterized in that the time of pressing a cover on the set of pages in the encasing station is controlled in a manner in accordance with the detected thickness of the set of pages.

Claim 11

The device as claimed in claim 8 characterized in that the sensor includes a potentiometer with a sliding contact joined to the moving jaw of the carriage.

Claim 12

The device as claimed in claim 9 comprising a three way switch and a selection circuit adapted to operate such switch which is connected with terminals of such potentiometer in order to transmit a signal dependent on the position of the sliding contact or one of said terminals to the control unit.

Claim 13

The device as claimed in claim 9 characterized by a second manually adjustable potentiometer connected in series with the said potentiometer.

Claim 14

The device as claimed in claim 8 characterized in that it comprises a timer responding to a signal from the sensor and intended to set the time of gripping to press such cover onto the set of pages by a second motor means.

Claim 15

The device as claimed in claim 8 characterized in that the regulating unit is adapted to modify the voltage of power supplied to the motor means, which is in the form of a DC motor, such unit including a speed of rotation regulator receiving information from the switch, an amperage regulator and a circuit adapted to control the triggers of thyristors of a rectifier for the supply of the motor means.

Claim 16

The device as claimed in claim 8 characterized in that the regulating unit is adapted to modify the frequency of electrical power supplied to the motor means, which includes an AC motor, such unit comprising a rectifier, a filter, an inverter to feed the motor means and a controller responding to information from the switch.

Claim 17

A binding machine for the adhesive binding of sets of pages including a device for operating said binding machine adapted to adhesively bind sets of pages, said binding machine comprising a carriage having a gripper formed by a moving and a stationary jaw, a motor means adapted to reciprocate the carriage along a guide path extending in a first direction from cooperating relationship with a loading station for charging the carriage with a set of pages, to a routing station for routing a back face of such set of pages, then to a gluing station for the application of adhesive to the said back face and then to an encasing station for the application of a cover to the set of pages and pressing such cover onto the back of the set for bonding the cover thereto, characterized in that the device comprises: a sensor to sense the thickness of the set of pages placed on the carriage and held gripped between the jaws thereof, said sensor being arranged to provide a signal representative of the thickness of the set of pages which is so gripped, and a regulating unit for modifying the speed of the motor means in response to an output signal from the sensor.

Claim 18

A binding machine for the adhesive binding of sets of pages including a device for operating said binding machine adapted to adhesively bind sets of pages, said binding machine comprising a carriage having a gripper formed by a moving and a stationary jaw, a motor means adapted to reciprocate the carriage along a guide path extending in a first direction from cooperating relationship with a loading station for charging the carriage with a set of pages, to a routing station for routing a back face of such set of pages, then to a gluing station for the application of adhesive to the said back face and then to an encasing station for the application of a cover to the set of pages and pressing such cover onto the back of the set for bonding the cover thereto, characterized in that the device comprises: a sensor to sense the thickness of the set of pages placed on the carriage and held gripped between the jaws thereof, said sensor being arranged to provide a signal representative of the thickness of the set of pages which is so gripped, and a regulating unit for modifying the speed of the motor means in response to an output signal from the sensor.