US 12,466,038 B2
Socket for a tightening tool
Johan Rönblom, Saltsjö-Boo (SE); and Adam Klotblixt, Stockholm (SE)
Assigned to ATLAS COPCO INDUSTRIAL TECHNIQUE AB, Stockholm (SE)
Appl. No. 17/766,642
Filed by ATLAS COPCO INDUSTRIAL TECHNIQUE AB, Stockholm (SE)
PCT Filed Oct. 15, 2020, PCT No. PCT/EP2020/079082
§ 371(c)(1), (2) Date Apr. 5, 2022,
PCT Pub. No. WO2021/083679, PCT Pub. Date May 6, 2021.
Claims priority of application No. 1930350-2 (SE), filed on Oct. 29, 2019.
Prior Publication US 2023/0048818 A1, Feb. 16, 2023
Int. Cl. B25B 21/02 (2006.01); B25B 23/00 (2006.01)
CPC B25B 21/02 (2013.01) [B25B 23/0035 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A socket unit for a direct driven electric power tool adapted to perform a pulsed tightening operation, comprising:
a first body portion comprising a first rear end portion for connection to an output shaft of the direct driven power tool or a first front-end portion adapted for engagement with a screw joint; and
a second body portion, comprising a second rear end portion for connection to the output shaft of the direct driven power tool or a second front end portion adapted for engagement with the screw joint;
wherein said second body portion is at least partly arranged in said first body portion,
wherein said first body portion is tubular in shape and comprises an open cavity that is cylindrical in shape and arranged at a first end of said first body portion, and wherein said second body portion is arranged at least partly in said open cavity,
wherein said first body portion comprises a first radial protrusion projecting radially inward forming a first shoulder,
wherein said second body portion comprises a substantially cylindrical first end section having two second radial protrusions projecting radially outwards and wherein said two second radial protrusions form a second shoulder projecting radially outwards in a radial direction, such that said first shoulder and said second shoulder are configured to engage each other to stop a relative rotation between said first body portion and said second body portion,
wherein said second body portion comprises a substantially cylindrical second end section with diameter substantially equal to the diameter of said first body portion and wherein the radial extension of said two second radial protrusions projects radially outwards,
wherein the second end section of said second body portion is located in the open cavity of the first body portion and the diameter of the second end section is substantially equal to the inner diameter of the open cavity of the first body portion, and
wherein the relative rotation between said first body portion and said second body portion is allowed, such that one of said first body portion and said second body portion are configured to rotate over a predetermined allowable angular range when the other of said first body portion and said second body portion is in engagement with said screw joint.