Handle, lifting spindle arrangement, and method for the...

A - Human Necessities – 01 – B

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A01B 59/00 (2006.01)

Patent

CA 2572648

The invention relates to a handle (10) for twisting a rod-shaped or tubular rotary body (54), a lifting spindle arrangement (52), and a method for producing such a handle (10). The inventive handle (10) comprises bulges (26, 28, 30) which extend parallel to an axis (12) while at least partially forming a hollow space (42, 44, 46) around said axis (12). The hollow spaces (42, 44, 46) are used for accommodating the handle on the rotary body (54). A torsion- proof connection between the handle (10) and the rotary body (54) is created via a recess (48) on the handle (10) and a protrusion (62) that is embodied on the rotary body (54) and can be made to engage with said recess (48). According to the invention, the bulges (26, 28, 30) are disposed one behind another along the axis (12), at least one bulge (26, 28, 30) being molded in the opposite radial direction relative to an adjoining bulge (26, 28, 30). Such a handle (10) is used for adjusting a lifting spindle arrangement (52), e.g. on trailed agricultural implements.

L'invention concerne une poignée (10) pour faire pivoter un élément pivotant (54) en forme de tige tubulaire, ainsi qu'un ensemble vis de montée (52) et un procédé pour fabriquer une telle poignée (10). Cette poignée (10) comporte des courbures (26,28,30) s'étendant parallèlement à un axe (12) et formant au moins partiellement une cavité (42, 44, 46) autour de l'axe (12). Ces cavités (42, 44, 46) servent au logement de l'élément pivotant (54). Un évidement (48) disposé sur la poignée (10) et une saillie (62) formée sur l'élément pivotant (54), l'évidement et la saillie étant mutuellement en prise, permettent une liaison solidaire en rotation entre la poignée (10) et l'élément pivotant (54). L'invention est caractérisée en ce que les courbures (26,28,30) sont disposées l'une derrière l'autre sur l'axe (10), au moins une courbure (26,28,30) étant formée radialement à l'opposé d'une courbure (26,28,30) voisine. La poignée (10) de l'invention sert à déplacer un ensemble vis de montée (52), par exemple sur des dispositifs de remorques agricoles.

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