US 12,071,981 B2
Pivot cradle bearing and method for producing a synchronization device of a pivot cradle bearing
Vasyl Kramar, Grettstadt (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/636,393
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Jul. 27, 2020, PCT No. PCT/DE2020/100668
§ 371(c)(1), (2) Date Feb. 18, 2022,
PCT Pub. No. WO2021/032243, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 102019122435.7 (DE), filed on Aug. 21, 2019.
Prior Publication US 2022/0282756 A1, Sep. 8, 2022
Int. Cl. F16C 33/30 (2006.01); F16C 19/50 (2006.01); F16C 33/46 (2006.01)
CPC F16C 33/306 (2013.01) [F16C 19/502 (2013.01); F16C 33/4605 (2013.01); F16C 33/4635 (2013.01); F16C 2360/42 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A pivot cradle bearing, comprising:
two bearing parts which are pivotable with respect to one another;
a bent cage segment, in which rolling bodies are guided, which roll between the two bearing parts which are pivotable with respect to one another;
a synchronization device configured to synchronize a relative movement of the bearing parts with a displacement of the cage segment comprises a pivoting lever mounted in the cage segment;
an articulated bearing configured for mounting the pivoting lever in the cage segment, said articulated bearing being asymmetrical with respect to a tangential plane lying centrally between an inner circumferential surface and an outer circumferential surface of the cage segment, and said articulated bearing including a cylindrical portion and a tapering portion adjoining the cylindrical portion, the cylindrical portion conforming to at least a portion of the pivoting lever;
an inner sliding bearing piece formed by the pivoting lever that is symmetrical, and an outer sliding bearing piece formed by the cage segment which is asymmetrical; and
an annular recess surrounding the articulated bearing formed on an outer circumferential surface of the cage segment and is arranged outside an annular securing collar which is formed directly by the cage segment and, together with a spherical sliding bearing surface provided by the cage segment, captively holds the pivoting lever in the cage segment.
 
6. A method for producing a synchronization device of a pivot cradle bearing, the method comprising:
providing a cage segment blank in which a through-opening with a cylindrical portion and a tapering portion adjoining the cylindrical portion is arranged,
providing a pivoting lever which has a spherical portion as an inner sliding bearing piece spaced from the ends thereof,
inserting the pivoting lever into the through-opening of the cage segment blank, such that the spherical portion comes to rest on the tapering portion of the through-opening, and
narrowing of the cylindrical portion of the through-opening, by heating and deforming the cage segment blank, by which the pivoting lever is secured against being pulled out of the through-opening.
 
9. A pivot cradle bearing, comprising:
two bearing parts which are pivotable with respect to one another;
a bent cage segment, in which rolling bodies are guided, which roll between the two bearing parts which are movable relative to one another;
a synchronization device configured to synchronize a relative movement of the bearing parts with a displacement of the cage segment, the synchronization device comprising a pivoting lever mounted in the cage segment;
an articulated bearing configured for mounting the pivoting lever in the cage segment, said articulated bearing being asymmetrical with respect to a tangential plane lying centrally between an inner circumferential surface and an outer circumferential surface of the cage segment; and
a retainer that holds a portion of the pivoting lever in the cage segment, the retainer comprises a deformation formed in the cage segment.