Dual-screen movement converter
AssigneeRobert Bosch GmbH
InventorsRaynald SPROCQ, Chris ANDERSON
Life of this patent
Estimating the term…
Abstract
A dual-screw movement converter, in which a movement converter between a drive organ includes a screw fixed in translation and driven in rotation, having threads, a nut connected in translation to the receptor organ, having first threads engaging with the threads of the screw and second threads. A sleeve coaxially surrounds the nut, fixed in rotation and translation with respect to the screw and having threads with which the second threads of the nut engage. To the nut, slaved by its second threads to the threads of the sleeve, screw communicates a combined movement of rotation and translation whose translation component along an axis is transmitted to the receptor organ.
Claims8
A screw-operated movement converter between a drive organ and a receptor organ, comprising:
- a screw having an axis of rotation, fixed in translation and driven in rotation, and having threads;
- a nut connected in translation to the receptor organ and having first threads engaging with the threads of the screw and second threads;
- and
- a sleeve coaxially surrounding the nut and fixed in rotation and in translation with respect to the screw and having threads with which the second threads of the nut engage;
- wherein the screw, driven in rotation, communicates to the nut, slaved by the second threads to the threads of the sleeve, a combined movement of rotation and translation whose translation component along the axis of rotation is transmitted to the receptor organ.
A pressure generator, comprising:
- a screw-operated movement converter between a drive organ and a receptor organ, including:
- a screw having an axis of rotation, fixed in translation and driven in rotation, and having threads;
- a nut connected in translation to the receptor organ and having first threads engaging with the threads of the screw and second threads;
- and
- a sleeve coaxially surrounding the nut and fixed in rotation and in translation with respect to the screw and having threads with which the second threads of the nut engage;
- wherein the screw, driven in rotation, communicates to the nut, slaved by the second threads to the threads of the sleeve, a combined movement of rotation and translation whose translation component along the axis of rotation is transmitted to the receptor organ;
- and
- a cylinder housing at least one piston displaced in translation by the nut of the converter, including a center screw and a sleeve cooperating with the nut by thread pairs.
A pressure sensitive module, comprising:
- a screw-operated movement converter between a drive organ and a receptor organ, including:
- a screw having an axis of rotation, fixed in translation and driven in rotation, and having threads;
- a nut connected in translation to the receptor organ and having first threads engaging with the threads of the screw and second threads;
- and
- a sleeve coaxially surrounding the nut and fixed in rotation and in translation with respect to the screw and having threads with which the second threads of the nut engage;
- wherein the screw, driven in rotation, communicates to the nut, slaved by the second threads to the threads of the sleeve, a combined movement of rotation and translation whose translation component along the axis of rotation is transmitted to the receptor organ, receiving the pressure found in a circuit;
- and
- a housing with a cylinder forming a chamber connected to a pressure circuit and closed by a piston screwed to a threaded cylinder and a pushrod, the piston being fixed in rotation but free in translation and the pushrod being equipped with exterior threads cooperating with the interior threads of the cylinder, the pushrod resting against a compression spring receiving the compressive energy transmitted by the pushrod displaced by the piston through the effect of the pressure found in the chamber.
Dependencies are inferred from the claim text.