Abstract:
A one-way clutch device for the starter drive of an internal combustion engine. The one-way clutch comprise a driving ring and a driven ring concentrically arranged. The driven ring is provided with axial grooves, and the driving ring includes a substantially radial pawl retractably received in the grooves. The pawl is a strip-like element inserted in the driving ring and located between two abutments of elastomeric material, one abutment being substantially not deformable to hold the pawl in a substantially radial position within one groove, and the other abutment being resiliently deformable, enabling the pawl to move out of the groove, and returning said pawl to a radial position into cooperation with the groove when at rest.
Abstract:
A starter drive for an internal combustion engine, in which an overrunning clutch comprises an annular driving member capable of being driven by a starting motor, this member being concentric with and around a driven member attached to a pinion capable of drivingly engaging an engine which is to be started, the clutch further comprising a series of rollers housed in recesses formed in the driven member, each roller bearing both on a cylindrical surface of the driven member and on a cam surface in the bottom of one of said recesses, and each roller being biased by a spring wedging mechanism. In this starter, the wedging mechanism comprises two or more springs arranged in parallel between the roller and one wall of the recess, these springs being coil springs having circular turns and forming a group of thrust members substantially equispaced over the length of the roller. The thrust thus exerted on the roller is more evenly distributed than by means of known wedging mechanisms which include a single spring having a rectangular cross-section.