Patent ID: 11859735
Assignee: F.LLI RIGHINI S.R.L.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  E | IPC E  F

Claim 0:
1. Device (1) designed for axially blocking an axial-symmetrical body (CA) through the application of a radial force; said device (1) comprising:
a support (10) of given angular extension, provided with a plurality of laminar bodies (20) extending longitudinally in a given direction (D);
at least one elongated member (30)(30′) housed at least partially in a seat (32)(32′) of said support (10) that extends along an axis (A)(A′) parallel to said given direction (D); each said elongated member (30)(30′) being housed in said respective seat (32, 32′) rotatably around said axis (A)(A′);
wherein each said elongated member (30)(30′) includes a first curved end portion (44) at a first end and a second curved end portion (44) at an opposite second end;
wherein each said elongated member (30)(30′) is rotoidally coupled to said support (10) through a respective head (45), wherein the head (45) is disposed along a top surface of the first curved end portion (44); and
a centring unit (34) that is configured to allow each said elongated member (30)(30′) to couple by friction in an angularly fixed manner to the corresponding said seat (32)(32′) under the thrust of a radial force exceeding a minimum threshold value, the centring unit (34) including a first pin (35) that passes through the head (45) and is coupled to said elongated member (30)(30′) to rotoidally couple said elongated member (30)(30′) to said head (45), the centring unit (34) further including an elastic toroidal interface (36) that surrounds the first pin (35) and engages a hole (450) formed in the first curved end portion (44);, wherein the head (45) is disposed within the respective seat (32, 32′) and includes a toroidal projection (45′) that is configured to allow said head (45) to resist against axial forces acting on the respective elongated member (30)(30′).