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US 5,474,436 AGranted
Apparatus for shaping the center space of toilet rolls
OwnerTokuhichi Yamazakiinventor
Life of this patent
Estimating the term…
Abstract
A method and apparatus for shaping the center space of toilet rolls by inserting a shaping core into each end of the center space, and then withdrawing the cores. The diameter of each shaping core decreases toward the front end of the core.
Claims5
An apparatus for shaping a center space of a toilet roll, comprising:
- transport means whereby toilet rolls, each having a center space, are conveyed at set intervals with said center space oriented in a direction of travel;
- means of moving each toilet roll thus transported to a dampening position and a shaping position;
- a dampening nozzle for dampening the toilet roll center space at the dampening position;
- a shaping core that has a smaller diameter toward a front end and a rear end diameter substantially the same as an inside diameter of the toilet roll center space and is located at the shaping position at an opening to the toilet roll center space;
- and
- drive means for inserting the shaping core from the front end thereof into the toilet roll center space from an opening and retracting the shaping core that has been inserted into the center space.
3 more elements
Dependencies are inferred from the claim text.