US 12,290,863 B2
Coupling arrangement for tool, and tool comprising coupling arrangement
Patrik Andersson, Skogås (SE); and Daniel Hallberg, Sundbyberg (SE)
Assigned to ATLAS COPCO INDUSTRIAL TECHNIQUE AB, Stockholm (SE)
Appl. No. 18/567,079
Filed by ATLAS COPCO INDUSTRIAL TECHNIQUE AB, Stockholm (SE)
PCT Filed May 25, 2022, PCT No. PCT/EP2022/064166
§ 371(c)(1), (2) Date Dec. 5, 2023,
PCT Pub. No. WO2023/280461, PCT Pub. Date Jan. 12, 2023.
Claims priority of application No. 2130190-8 (SE), filed on Jul. 7, 2021.
Prior Publication US 2024/0261872 A1, Aug. 8, 2024
Int. Cl. B23B 31/00 (2006.01); B23B 31/22 (2006.01)
CPC B23B 31/008 (2013.01) [B23B 31/22 (2013.01); B23B 2231/58 (2021.01); B23B 2265/32 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A coupling arrangement for a tool, the coupling arrangement comprising:
a drive part rotatable about a rotation axis, the drive part comprising a drive profile;
a driven part rotatable about the rotation axis, the driven part comprising a driven profile complementary to the drive profile, the driven profile being arranged to mate with the drive profile in a coupled position for torque transfer between the drive part and the driven part; and
an aligning arrangement arranged to force a relative rotation between the drive part and the driven part about the rotation axis during relative movement of the drive part and the driven part along the rotation axis, from a nonaligned state of the coupling arrangement, where the drive profile is not rotationally aligned with the driven profile, towards an aligned state of the coupling arrangement, where the drive profile is rotationally aligned with the driven profile, wherein the aligning arrangement comprises one or more protruding elements, each arranged to exert a torque on the drive profile or on the driven profile in the nonaligned state, wherein the aligning arrangement comprises a spring, wherein the one or more protruding elements are arranged to be moved against the deformation of the spring, and wherein the spring is arranged to force the one or more protruding elements in a radial direction with respect to the rotation axis.