Paper web feeder in rotary press

Abstract

A paper web feeder is provided, which allows easy operations of maintenance and replacement to be achieved on occurrence of a malfunction. In addition, even if the number of wires is increased and connection means is up-sized due to expanded functions of support arms, no influence is given to bearings in support frames for a rotary shaft. A paper web feeder (A) for a rotary press comprises a pair of support frames ( ) opposing to each other. A rotary shaft ( ) is rotatably supported by the pair of support frames ( ). Support arms ( ) are provided in plural and radial about the rotary shaft ( ) for supporting a paper web (Q Q Q ) rotatably at each arm tip and configured to rotate integrally with the rotary shaft ( ). Rotary conduction means (B) is located at a displaceable angle associated with rotation of the rotary shaft ( ) for conducting to an electric device. The electric device displaces in angle associated with rotation of the rotary shaft ( ). Stationary conduction means (C) is secured on either of the pair of support frames ( ) and conductive to the rotary conduction means (B). Connection means (D) is provided for electrically connecting the rotary conduction means (B) to the stationary conduction means (C). The rotary shaft ( ) has axial ends, at least one of the axial ends protruded outside from the pair of support frames ( ). The rotary shaft ( ) also has a hollow portion ( ) formed therein extending from a mid-portion between the pair of support frames ( ) to the portion protruded outside from the pair of support frames ( ). The stationary conduction means (C) and the connection means (D) are provided outside the pair of support frames ( ). The rotary conduction means (B) has a portion extended through the hollow portion ( ) to outside the pair of support frames ( ) and electrically connected to the connection means (D).