Retaining device for a threaded member, in particular for a nut
AssigneeJPB Systeme
InventorsJonathan Beaumel, Denis Messager, Damien Marc
Life of this patent
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Abstract
A nut is prevented from turning during screwing by a body attached to one of the parts to be tightened by rivets. The body prevents the nut from rotating via a ring coupled without clearance with the nut and coupled with radial clearance to the body, in order to allow the nut to self-position itself along the axis imposed on the screw by the bores traversed by the screw. The nut can thus be a standard nut or a floating cage nut. Application to the retaining of nuts that are inaccessible and/or require a high level of security against unintentional unscrewing.
Claims19
A retaining device for a threaded member, in particular for a nut, for retaining said threaded member while it undergoes an operation of screwing or unscrewing along a screw axis, or while it is in the screwed condition, the threaded member having a linking shape with respect to the rotations about the axis and bearing at least indirectly on a part to be tightened by screwing action, the device comprising:
- a body intended to be fastened to the part and equipped with an anti-rotation shape capable of preventing rotation of the threaded member with respect to the part while allowing a radial clearance between the threaded member and the body, said retaining device moreover comprising an intermediate element provided with:
- a shape complementary to the linking shape, capable of producing a coupling opposing a relative rotation between the threaded member and the intermediate element;
- and
- coupling means capable of producing, with the anti-rotation shape of the body a coupling with a radial clearance between the intermediate element and the body, the coupling means also configured for opposing a relative rotation between the intermediate element and the body.
Dependencies are inferred from the claim text.