Patent ID: 8869912
Filing Date: 2014-10-28
Classification: A01G,B25F,H01M,Y02E

Abstract:
1. An electric power tool comprising: a device housing comprising a front end where a tool member is disposed and comprising a rear grip opposite the front end, wherein a longitudinal axis of the device housing extends from the front end to the rear grip and the rear grip extends in a direction of said longitudinal axis of said device housing, said device housing further comprising first and second opposed lateral sides and a housing top side and a housing bottom; an electric drive motor arranged in said device housing; an electronic control arranged in said device housing and connected to said electric drive motor for operating said electric drive motor; a battery pack compartment arranged inside said device housing; a battery pack arranged in said battery pack compartment, wherein said battery pack has a battery pack housing of an approximately parallelepipedal shape and said battery pack housing extends in all three orthogonal spatial directions in a direction of a height axis of said battery pack housing, in a direction of a width axis of said battery pack housing, and in a direction of a depth axis of said battery pack housing; wherein said battery pack has a height measured in said direction of said height axis, a width measured in said direction of said width axis, and a depth measured in said direction of said depth axis, wherein said height of said battery pack is 1.2 times to 2.5 times greater than said width and wherein said width of said battery pack is 1.2 times to 2.5 times greater than said depth; wherein said battery pack housing has two opposed narrow sides, a first wide side connecting first ends of the narrow sides and a second wide side connecting second ends of the narrows sides, and opposed end faces connected to said narrow sides and said wide sides, respectively; wherein, in said direction of said longitudinal axis of said device housing, said battery pack compartment is positioned between said rear grip and said electric drive motor such that said first wide side faces said electric drive motor and faces away from said rear grip and said second wide side faces away from said electric drive motor and faces said rear grip; said battery pack housing received in said battery pack compartment such that said width axis extends transversely to said longitudinal axis of said device housing and said depth axis extends in said direction of said longitudinal axis of said device housing; wherein said narrow sides extend approximately parallel to said lateral sides, wherein said narrow sides are positioned at a minimal spacing relative to said lateral sides of said device housing, respectively, wherein said minimal spacing is in a range of 2 mm to 15 mm; wherein said opposed end faces are positioned so as to neighbor said housing top side and said housing bottom, respectively; wherein said device housing has a device housing height measured at said battery pack compartment from said housing bottom to a highest point of said housing top side; wherein said device housing has a device housing width measured at said battery pack compartment from said first opposed lateral side to said second opposed lateral side; wherein said device housing height and said device housing width of the electric power tool are utilized to accommodate said battery pack.