Abstract:
PROBLEM TO BE SOLVED: To provide a holder for a roll of web-form material such as paper, non-woven fabric or foil, in which the rotation of the roll on the shaft of the holder is restrained. SOLUTION: This holder includes a shaft 7 intended to be inserted in a center hole of a roll, so that the roll can be rotated round the shaft to unwind a web-form material. To provide braking of rotation of the roll, the shaft 7 includes at least one elastic member formed in the shape of a plate spring 10, which has one end fitted to the shaft and the free end projected from the shaft in the radial direction at a no-load position to increase the radial dimension, and the elastic member causes the spring action toward the shaft. The end of the plate spring 10 connected to the shaft 1 is intended to be inserted in a passage of the shaft inside the peripheral surface of the shaft and received therein. A lock means intended to co-operate with a corresponding lock means on the shaft is provided so that the plate spring 10 is locked in the axial direction on the shaft 7.
Abstract:
The invention relates to an end plug (5) for a roll of material to be inserted into a retention mechanism (1), the end plug comprising: a receiving portion (60) for being inserted in the roll of material, an end face (680) for contacting the retention mechanism and a bearing member (70) for being inserted into the retention mechanism. The bearing member comprises a bearing pin (80) comprising a counter surface (82) facing the end face and at least one locking portion (950) for locking the end plug in an end position (250) in the retention mechanism, the locking portion being positioned within a zone (900) defined by a first surface (90') extending towards the end face from an intersection position (910) with the bearing pin, the first surface being inclined with respect to the longitudinal axis of the bearing pin by an angle of 117 and a second surface (90'') extending towards the end face from the intersection position, the second surface being inclined with respect to the longitudinal axis of the bearing pin by an angle of 141.
Abstract:
The invention relates to an end plug (5) for a roll of material to be inserted into a retention mechanism (1), the end plug comprising: a receiving portion (60) for being inserted in the roll of material, an end face (680) for contacting the retention mechanism and a bearing member (70) for being inserted into the retention mechanism. The bearing member comprises a bearing pin (80) comprising a counter surface (82) facing the end face and at least one locking portion (950) for locking the end plug in an end position (250) in the retention mechanism, the locking portion being positioned within a zone (900) defined by a first surface (90') extending towards the end face from an intersection position (910) with the bearing pin, the first surface being inclined with respect to the longitudinal axis of the bearing pin by an angle of 117 and a second surface (90'') extending towards the end face from the intersection position, the second surface being inclined with respect to the longitudinal axis of the bearing pin by an angle of 141.