Importance

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Abstract

A retractable cord take-up reel comprises a drive shaft and a first reel mounted on the drive shaft. The first reel has a central opening and a first side. A drive shaft gear is mounted on the drive shaft, and rotating the drive shaft gear causes the drive shaft to rotate. A first drive gear is mounted on the drive shaft between the first reel and the first drive shaft gear. The first drive gear has a central opening and a first side facing the first reel and a second side facing the drive shaft gear. One of the first side of the first reel and the first side of the first drive gear has an angled surface, and the other of the first side of the first reel and the first side of the first drive gear has a cog facing the one first side. The one first side has two steps for engaging the cog. A first one of the steps is at a low location on the angled surface, and a second one of the steps is at a high location on the angled surface. When the cog is engaged with the first step, the first drive gear is engaged with the drive shaft gear. When the cog is engaged with the second step, the first drive gear is not engaged with the drive shaft gear. A cord is wound on the first reel. When the cord is pulled, the first reel rotates so that the cog engages with the first step, and the drive shaft is driven in a first direction. The retractable cord take-up reel further comprises a second reel and a second drive gear. The second reel and the second drive gear are configured similar to the first reel and the first drive gear and are mounted on the drive shaft on an opposite side from the first reel and the first drive gear. A cord is wound on the second reel so that when the cord on the second reel is pulled, the drive shaft is driven in a second direction that is opposite the first direction.

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First Claim