Cassettee rewinding apparatus
OwnerMario Campioninventor
Life of this patent
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Abstract
A manual cassette rewinding apparatus for allowing the user to rewind a cassette using an ergonomical pulling action on a string. The rewinding apparatus has a pulley rotatably mounted inside a housing. A string is winded around the pulley. A driving pin linked to the pulley is adapted to rotate jointly with the latter only when the string is being unwinded from the pulley. A spring is used to rewind the string around the pulley. The driving pin is adapted to be inserted into the hub of a cassette and the sting to be alternatively pulled and allowed to rewind by the user. When the string is pulled it rotates the driving pin thus rewinding the cassette.
Claims6
An apparatus for manually rewinding a tape wound around at least one hub in cassette, said apparatus comprising:
- a pulley rotatably mounted inside a housing,
- a string adapted to be wound around said pulley,
- a winding key adapted to be inserted in said cassette hub,
- a ratchet means rotating jointly with said winding key for selectively allowing and preventing rotation of said pulley relative to said winding key, said ratchet means being adapted to rotate jointly with said pulley when said string is being unwound and to be still when said string is being wound around said pulley,
- a resilient biasing means for winding said string around said pulley, whereby, in use, said winding key is adapted to be inserted into said hub of said cassette and said string to be pulled by a user, when said sting is pulled, it unwinds from said pulley, rotating said pulley, said ratchet means and said winding key, thus rewinding said cassette.
Dependencies are inferred from the claim text.