Patent ID: 8067860

Claim:
An electrical device, in particular an electrical hand-held power tool, with a removable power supply unit ( 18 , 70 , 104 ), a receiving region ( 16 , 102 , 132 , 144 , 156 ) for accommodating the power supply unit ( 18 , 70 , 104 ), and a locking device ( 20 , 76 , 114 , 134 , 146 , 154 ) configured for locking the power supply unit ( 18 , 70 , 104 ) to the receiving region ( 16 , 102 , 132 , 144 , 156 ) by application of an upward pushing force applied directly by a grasping hand, and for unlocking and releasing the power supply unit ( 18 , 70 , 104 ) from the receiving region ( 16 , 102 , 132 , 144 , 156 ) by application of a downward pulling force applied directly by a grasping hand, which pushing and pulling forces move the entire power supply unit ( 18 , 70 , 104 ) relative to the receiving region ( 16 , 102 , 132 , 144 , 156 ), wherein the locking device ( 20 , 76 , 114 , 134 , 146 , 154 ) includes a locking element, which is designed as a spring-loaded element ( 34 , 72 , 118 , 138 , 148 , 152 ) that is elastically deformed by the pulling force when unlocked into a state that releases the power supply unit ( 18 , 70 , 104 ) and by the pushing force applied to lock the power supply unit ( 18 , 70 , 104 ); and wherein the receiving region ( 16 ) comprises a wall, an arresting means ( 46 ) with which spring-loaded element ( 34 , 72 , 118 , 138 , 148 , 152 ) is engaged when the power supply unit ( 18 , 70 , 104 ) is locked in the receiving region ( 16 , 102 , 133 , 144 , 156 ) and a recess ( 60 ) in which the spring-loaded element ( 34 ) is received when the power supply unit ( 18 , 70 , 104 ) is unlocked, wherein the arresting means ( 46 ) and the recess ( 60 ) are provided in the receiving region wall in a spaced arrangement with respect to a removing direction and wherein the recess ( 60 ) is arranged downstream relative to the arresting means ( 46 ) as seen in the removing direction ( 22 ).