| 摘要 |
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 (16, 17) opposing to each other. A rotary shaft (1) is rotatably supported by the pair of support frames (16, 17). Support arms (3, 4) are provided in plural and radial about the rotary shaft (1) for supporting a paper web (Q1, Q2, Q3) rotatably at each arm tip and configured to rotate integrally with the rotary shaft (1). Rotary conduction means (B) is located at a displaceable angle associated with rotation of the rotary shaft (1) for conducting to an electric device. The electric device displaces in angle associated with rotation of the rotary shaft (1). Stationary conduction means (C) is secured on either of the pair of support frames (16, 17) 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 (1) has axial ends, at least one of the axial ends protruded outside from the pair of support frames (16, 17). The rotary shaft (1) also has a hollow portion (1a, 2a) formed therein extending from a mid-portion between the pair of support frames (16, 17) to the portion protruded outside from the pair of support frames (16, 17). The stationary conduction means (C) and the connection means (D) are provided outside the pair of support frames (16, 17). The rotary conduction means (B) has a portion extended through the hollow portion (1a, 2a) to outside the pair of support frames (16, 17) and electrically connected to the connection means (D).
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