Personal lift device

A - Human Necessities – 61 – G

Patent

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Details

A61G 7/10 (2006.01) B66D 1/14 (2006.01)

Patent

CA 2417506

A personal lift device is disclosed having a motor having an output shaft. A gearing system is operatively connected to the output shaft for increasing torque. A strap for suspending a weight is wound onto a spool and rotating the spool extends and retracts the strap. A drive connection is made between the gearing system and the spool to permit said motor to drive said spool. A brake is associated with said spool to prevent unwanted extension of said strap from said spool, when a weight is suspended by said strap. In a preferred embodiment a clutch is provided between the brake and the drive train, and the greater the weight supported by the spool the greater the braking force. An emergency lift and lower device is also provided in the event of a failure of the motor.

L'invention concerne un lève-personne ayant un moteur doté d'un arbre de sortie. Un système d'engrenage est relié de manière efficace à l'arbre de sortie afin d'augmenter le couple. Une courroie pour suspendre un poids est enroulée sur une bobine et le fait de tourner la bobine allonge et rentre la courroie. Une liaison de commande est faite entre le système d'engrenage et la bobine afin de permettre au moteur d'actionner la bobine. Un frein est associé à la bobine afin de prévenir l'allongement indésiré de la courroie de la bobine lorsqu'un poids est suspendu par cette courroie. Dans un mode de réalisation préféré, un embrayage est fourni entre le frein et le groupe motopropulseur, plus il y a de poids soutenu par la bobine, plus la force de freinage est élevée. Un appareil d'urgence pour lever et abaisser est également fourni en cas de panne du moteur.

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