US2018290284A1PendingUtilityA1

Electric power tool

52
Assignee: ATLAS COPCO IND TECHNIQUE ABPriority: Jun 30, 2015Filed: Jun 13, 2016Published: Oct 11, 2018
Est. expiryJun 30, 2035(~8.9 yrs left)· nominal 20-yr term from priority
Inventors:Karl Göran Johansson
B25B 23/0007B25F 5/001B25B 21/00B25B 23/147F16D 3/185F16D 3/72
52
PatentIndex Score
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References
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Claims

Abstract

An electric power tool includes an electric motor with a motor gear, an output shaft with an input gear, a coupling that connects the motor gear to the input gear, and a housing that houses the motor, the motor gear, the coupling and the input gear. The coupling includes a shaft portion and two connective portions arranged at opposite ends of the shaft portion for connection to the motor gear and input gear, respectively. The motor gear and the input gear, each, have a cambered profile allowing a tilting movement of the coupling with respect to an axial position of one of the motor gear and the input gear that has a cambered profile.

Claims

exact text as granted — not AI-modified
1 - 7 . (canceled) 
     
     
         8 . An electric power tool comprising:
 an electric motor with a motor gear;   an output shaft with an input gear;   a coupling that connects the motor gear to the input gear; and   a housing that houses the motor, the motor gear, the coupling and the input gear,   wherein the coupling includes a shaft portion and two connective portions arranged at opposite ends of the shaft portion for connection to the motor gear and input gear, respectively, wherein the motor gear and the input gear, each, have a cambered profile allowing a tilting movement of the coupling with respect to an axial position of one of the motor gear and the input gear that has a cambered profile.   
     
     
         9 . The electric power tool according to  claim 8 , wherein both the connective portions include splines for meshing connection to the motor gear and input gear, respectively. 
     
     
         10 . The electric power tool according to  claim 9 , wherein the two connective portions of the coupling are plastic parts that are fitted inside the shaft portion. 
     
     
         11 . The electric power tool according to  claim 10 , wherein the shaft portion is tube shaped. 
     
     
         12 . The electric power tool according to  claim 11 , wherein the connective portions are press fitted inside the shaft portion. 
     
     
         13 . The electric power tool according to  claim 12 , wherein the connective portions, each, comprise recesses, in which guides of the shaft portion fit so as to lock the connective portions and the shaft portion from mutual rotation.

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