| 摘要 |
A reel comprises a drum assembly enclosed within a shell comprising upper and lower shell portions. The drum assembly is secured to the lower shell portion. The drum assembly comprises a motor-driven rotating drum rigidly secured between two discs, and a frame subassembly. The drum is adapted to received a linear material spooled thereon. A first of the discs has a spiral groove on an outer surface thereof. The spiral groove has a first end near the center of the first disc and a second end near an outer edge thereof. The second end is tapered to lesser depth. The frame subassembly comprises side plates enclosing the drum and discs. A first side plate has a track assembly attached to its inner surface, and a translating plate adapted to translate horizontally within the track assembly. The translating plate has a horizontal pin at each of its ends, which pins are adapted to be received within the spiral groove of the first disc. As the drum and discs rotate, the horizontal pins alternatingly engage the spiral groove, causing the translating plate to translate linearly within the track assembly. The translating plate is connected to the upper shell portion, causing the upper shell portion to reciprocatingly rotate about a vertical axis with respect to the lower shell portion and drum assembly. A guide aperture is provided in the upper shell portion, through which linear material is drawn onto the rotating drum. Advantageously, the aperture translates through an arc in front of the drum, so that the linear material is distributed across the drum surface as it is wound.
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