公开(公告)号：US20230415218A1

公开(公告)日：2023-12-28

申请号：US18037255

申请日：2021-11-10

Applicant: Hilti Aktiengesellschaft

Inventor： Maximilian KNYRIM ,  Michael HINTERSTOISSER ,  Florian SCHMID

IPC: B21D39/04

CPC classification number: B21D39/048 ,  B21D39/046

Abstract: Power tool, in particular a pipe press, including a drive, an output shaft, a threaded spindle drive and a linear actuator, wherein a torque generated by the drive is transmissible via the output shaft, and the threaded spindle drive connected to the output shaft, to the linear actuator. The power tool includes an eccentric transmission device for a torque adaptation between the drive and the threaded spindle drive, wherein the eccentric transmission device includes a drive eccentric, which is drivable by the drive, an eccentric gear, which is drivable by the drive eccentric, and a compensating coupling, which is drivable by the eccentric gear and which serves for transmitting torque from the eccentric gear to the output shaft.

公开(公告)号：US20210402585A1

公开(公告)日：2021-12-30

申请号：US17281319

申请日：2019-10-29

Applicant: Hilti Aktiengesellschaft

Inventor： Michael HINTERSTOISSER ,  Jochen ERHARDT

IPC: B25F5/00 ,  F16H57/04

Abstract: A portable power tool 1 has a tool holder 2 for retaining a tool 3, a handle 7, an electric motor 4, and a drive train 10. The drive train couples the electric motor 4 to the tool holder 2. The drive train 10 contains a planetary transmission 11 with a planet carrier 13 and a plurality of planet gears 14. At least one of the planet gears 14 has a cylindrical cutout 30 and the planet carrier 13 has a collar 24 in the form of a circular arc that protrudes into the cutout 30.