Patent ID: 6851652
Filing Date: 2005-02-08
Classification: E04G

Abstract:
1. A telescopic support including a tube, an elongated element inserted in the tube and formed with a series of ratchets, and a driving and locking device including: a locking element including a jaw formed with at least one ratchet and being pivotally installed on the tube; a spring provided between the tube and the locking element for biasing the ratchet of the locking element into engagement with the ratchets of the elongated element; and a driving element including a jaw formed with at least one ratchet, wherein the driving element can be pivoted on the tube in a direction so as to engage the ratchet thereof with the ratchets of the elongated element and in an opposite direction so as to disengage the ratchet thereof from the ratchets of the elongated element and pivot the locking element for disengaging the ratchet of the locking element from the ratchets of the elongated element.