Gripping device
AssigneeF.Lli Righini S.R.L.
InventorsFranco Argelli, Renzo Righini
Life of this patent
Estimating the term…
Abstract
A clamp (1000) designed to axially block an axisymmetric body (CA) by applying radial actions (forces) and provided with a plurality of gripping devices (1) distributed concentrically around an axis (AX) and developed along a given direction (D) to apply radial actions (forces) centered on said central axis (AX); each device (1) comprising a support assembly (10) and a gripping assembly (20) coupled by means of a plate (22) that supports at least one holding unit (200) at the front; each holding unit (200) comprising at least one toothed sliding block (202) carried in a freely rotatable and axially fixed way and axial-hinge coupling members (30) arranged between the plate (22) and each sliding block (202) and distributed along the direction (D).
Claims10
A gripping device for a clamp having a central axis (AX) and extending in a direction (D) parallel to the central axis (AX), the gripping device being designed to axially block an axisymmetric body by applying radial actions centered on the central axis (AX), the gripping device comprising:
- a support assembly and a gripping assembly coupled together by a plate that delimits the gripping assembly at a rear thereof, the gripping assembly including at a front, at least one holding unit, each holding unit including:
- i) at least one toothed sliding block carried so as to be freely rotatable while axially fixed with respect to said direction (D), ii) hinge coupling elements axially distributed along said direction (D) and arranged between the plate and each said sliding block, wherein the hinge coupling elements include tabs carried by the plate and abutment elements carried at the rear of the sliding block and shape-fitted to the tabs;
- wherein each tab has at a front a concave seat with a cylindrical shape, and the abutment elements are axially distributed and delimit longitudinally, two-by-two, a second compartment, which is in turn transversally delimited by a partially cylindrical sheath concentric with a fulcrum axis and has an angular extension that approximates the concave seat.
Dependencies are inferred from the claim text.