Apparatus, such as a ladder, comprising extendable legs

Details Apparatus, such as a ladder, comprising extendable legs Apparatus, such as a ladder, comprising extendable legs

E - Fixed Constructions

06

C

E06C 7/44 (2006.01) F16B 2/24 (2006.01)

Patent

CA 2752066

The invention relates to a supporting element for an object. The supporting element comprises a first leg member and a second leg member. The first leg member is axially movable relative to the second leg member for axially extending the support member. The first leg member comprises a house that is arranged for slidably receiving the second leg member. The house comprises a locking element having a locking position for locking the relative axial movement of the first leg member with respect to the second leg member, and having an open position for enabling relative axial movement of the two members. A catch may be provided in the locking element. The catch may be tiltably movable within the house for alternately acquiring the locking position and the open position of the locking element. The catch may comprise a cavity receiving the second leg, wherein the cavity has a stopping surface engaging at least opposed perimeter parts of the second leg member in a locking position of the locking element.

La présente invention concerne un élément de support (2) pour un objet. L'élément de support comprend un premier élément pied (22) et un second élément pied (20). Le premier élément pied est mobile de façon axiale par rapport au second élément pied pour étendre l'élément de support de façon axiale. Le premier élément pied comprend un logement (32) qui est agencé pour recevoir le second élément pied de façon coulissante. Le logement comprend un élément de verrouillage (30) qui comporte une position de verrouillage pour verrouiller le mouvement axial relatif du premier élément pied par rapport au second élément pied, et qui comporte une position ouverte pour permettre le mouvement axial relatif des deux éléments. Un loquet (34) peut être prévu dans l'élément de verrouillage. Le loquet peut être mobile de façon inclinable à l'intérieur du logement pour adopter en alternance la position de verrouillage et la position ouverte de l'élément de verrouillage. Le loquet peut comprendre une cavité (40) qui reçoit le second pied, la cavité comporte une surface d'arrêt (47) qui entre en prise avec au moins des parties de périmètre opposées du second élément pied dans une position de verrouillage de l'élément de verrouillage.

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