Extension arm for a free arm parasol, pivotably arranged on...

A - Human Necessities – 45 – B

Patent

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Details

A45B 23/00 (2006.01) F16C 11/10 (2006.01)

Patent

CA 2533091

The invention relates to an extension arm (6) that is arranged on a carrier (4) in such a way that it can pivot about the axis (18) thereof by means of a steering rod (20), and can be blocked in the pivoted position. Said steering rod (20) is arranged on a sleeve (44) that can be pivoted about the extension arm (6), can engage with the extension arm in different rotational angle positions, and can be directly or indirectly blocked on the carrier. According to the invention, a first coupling part (40) fixed to the extension arm (6) co- operates with a second coupling part (42) arranged on the sleeve (44) and acting in the axial direction. Furthermore, the steering rod (20) comprises a supporting element (56) that co-operates with a counterpart (58) arranged on the extension arm (6), in order to displace the second coupling part (42) in the axial direction by means of the steering rod (20). In this way, the extension arm can be pivoted and blocked in a simple manner with one hand.

L'invention concerne un bras (6) fixé à un mât (4) de façon à pouvoir pivoter autour de son axe (18), lequel bras peut être pivoté au moyen d'une bielle (20) et bloqué dans la position de pivotement, ladite bielle (20) étant fixée à un manchon (44), pouvant pivoter autour du bras (6), et pouvant être, d'une part, enclenchée dans différentes positions angulaires par rapport au bras et, d'autre part, bloquée directement ou indirectement sur le mât. Selon la présente invention, une première pièce d'accouplement (10), solidaire du bras (6), coopère avec une seconde pièce d'accouplement (42), formée sur le manchon (44) et agissant dans le sens axial. De plus, la bielle (20) présente un élément d'appui (56), qui coopère avec une contrepièce (58), fixée au bras (6), pour déplacer la seconde pièce d'accouplement (42) dans le sens axial au moyen de ladite bielle (20). Ainsi, ce bras peut être pivoté et bloqué d'une seule main en toute simplicité.

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