Casing reinforced with ribs for food applications

Patent metadata

Field	Value
Publication number	US-2022268317-A1
Application number	US-202217672289-A
Country	US
Kind code	A1
Filing date	Feb 15, 2022
Priority date	Feb 19, 2021
Publication date	Aug 25, 2022
Grant date	—

Abstract

A casing of a bearing unit for food applications may include a base having at least one hole for housing at least one fixing bolts, a spherical seat for housing the bearing unit, and at least one reinforcement rib located between the hole and the spherical seat.

First claim

1 . A casing of a bearing unit comprising:
a base, the base comprising at least one hole for receiving at least one fixing bolt, a spherical seat for housing the bearing unit, and at least one reinforcing rib located between the hole and the spherical seat.

2 . The casing according to claim 1 , wherein the casing has a pair of holes and the at least one reinforcing rib comprises two pairs of ribs, each pair of ribs located between a respective hole of the pair of holes and the spherical seat,

3 . The casing according to claim 2 , wherein a distance between an axis of symmetry (X) of each of the pair of ribs and a wall of the base is equal to half a width (A) of the base.

4 . The casing according to claim 3 , wherein a minimum spacing (J min ) between a center of symmetry of each pair of ribs is:
J min >J− 2 mm
wherein J is a distance between an axis of symmetry of a first hole of the pair of holes and an axis of symmetry of a second hole of the pair of holes.

5 . The casing according to claim 4 , wherein a minimum radius (R min ) measured from a center of symmetry of each of the pair of ribs is defined as:
R min >Φ+0.8 mm

wherein Φ is a diameter of at least one fixing bolt.

6 . The casing according to claim 1 , wherein an angle (α), measured on a plane orthogonal to the base, defines an average angle of inclination of the at least one reinforcing rib with respect to the base and ranges between 120° and 140°.

7 . The casing according to any of claim 3 , wherein an angle (β), measured on a plane parallel to the base, defines an average angle of inclination of each of the pair of ribs with respect to the axis of symmetry (X) and ranges between 400 and 50°.

8 . The casing according to any of claim 3 , wherein a width (C) of a lower base portion of a rib of the pair of ribs is:
C>B/ 2−0.8 mm

wherein B is a distance between a wall of the holes and the wall of the base.

9 . The casing according to claim 1 , wherein the at least one rib comprises rounded surfaces with a radius of curvature between 0.8 mm and 2 mm.

10 . The casing according to claim 1 , wherein the casing is made of a composite polymeric material.

11 . A casing of a bearing unit comprising:
a base, the base comprising at least one hole for receiving at least one fixing bolt, a spherical seat for housing the bearing unit, and at least one reinforcing rib located between the hole and the spherical seat, wherein the casing has a pair of holes and the at least one reinforcing rib comprises two pairs of ribs, each pair of ribs located between a respective hole of the pair of holes and the spherical seat, wherein a distance between an axis of symmetry (X) of each of the pair of ribs and a wall of the base is equal to half a width (A) of the base, wherein 1 a minimum spacing (Jmin) between a center of symmetry of each pair of ribs is:
J min> J− 2 mm
wherein J is a distance between an axis of symmetry of a first hole of the pair of holes, wherein a minimum radius (R min ) measured from a center of symmetry of each of the pair of ribs is defined as:
R min >Φ+0.8 mm

wherein Φ is a diameter of at least one fixing bolt, wherein an angle (α), measured on a plane orthogonal to the base, defines an average angle of inclination of the at least one reinforcing rib with respect to the base and ranges between 120° and 140°, wherein an angle (β), measured on a plane parallel to the base, defines an average angle of inclination of each of the pair of ribs with respect to the axis of symmetry (X) and ranges between 40° and 50°, wherein a width (C) of a lower base portion of a rib of the pair of ribs is:
C>B/ 2−0.8 mm

wherein B is a distance between a wall of the holes and the wall of the base, and wherein the at least one rib comprises rounded surfaces with a radius of curvature between 0.8 mm and 2 mm.

Assignees

• Skf Ab

Inventors

• Bertelloni Ettore
• Bertolini Andrea A
• Frezza Pasquale

Classifications

• F16C35/047

  with a base plate substantially parallel to the axis of rotation, e.g. horizontally mounted pillow blocks · CPC title

• F16C35/00 Primary

  Rigid support of bearing units; Housings, e.g. caps, covers (F16C23/00 takes precedence) · CPC title

• F16C2202/06

  Strength or rigidity · CPC title

• F16C2208/00

  Plastics; Synthetic resins, e.g. rubbers · CPC title

• F16C23/084

  sliding on a complementary spherical surface · CPC title