Tightening device with swivelling handling arm and appliance including such a device
AssigneePELLENC (Societe Anonyme)
InventorRoger Pellenc
Life of this patent
Estimating the term…
Abstract
Tightening device of the screw-nut type includes a tightening member, which can be rotated, and a rotary wrench for this tightening member, equipped with a handling arm. The wrench and the tightening member are joined by a connecting device in such a way that the wrench can swivel in relation to the tightening member around a swivel axis substantially perpendicular to the screwing axis of the tightening member. Thus, it can be placed in a rest position substantially perpendicular to the screwing axis and can rotate the tightening member around the screwing axis or rotated freely in relation to the tightening member around the screwing axis, over a range of angular clearance (a) of at least 170°.
Claims15
Tightening device of the screw-nut type, comprising:
- a tightening member being rotatable;
- and
- a wrench rotating said tightening member and being equipped with a handling arm, said wrench and the tightening member being joined by a connecting device such that the wrench swivels in relation to the tightening member around a swivel axis perpendicular to a screwing axis of said tightening member and such that the tightening member rotates around said screwing axis, in the direction of tightening or rotates freely in relation to the tightening member around said screwing axis, over a range of angular clearance (α) of at least 170° and 240°, in an opposite direction to a tightening direction after immobilization of said tightening member, in an immobilization position, said wrench being at an end of a tightening operation, being placed in a rest position substantially perpendicular to said screwing axis.
Dependencies are inferred from the claim text.