Battery connecting assembly

Claim 1

In combination, an electrical device, a supporting plate having a large opening therein and a pair of smaller notches at opposite sides of said large opening, said plate being mounted across a recess in the body of said device located along a first wall thereof, a first electrically conductive contactor extending into said recess and centered with respect to said large opening and coupled to circuitry within said electrical device, a battery case adapted to hold at least one battery therein, said case including at one end a protruding member extending from one wall of said battery case and having a pair of radially extending lugs, said protruding member having an aperture in the center thereof, a second electrically conductive contactor extending in insulative manner from a terminal of said battery into said aperture in said protruding member, said proTruding member and said lugs being adapted to be inserted into said large opening in said plate by passing the pair of lugs through said pair of notches in said plate whereby to dispose said lugs at the side of said plate opposite the plate side adjacent said one wall of said battery case, said lugs including a generally symmetrically shaped camming portion having a peak extending toward said one wall of said battery case with the peak of the camming portion arranged such that after the protruding member is given a partial rotation in either direction from the position thereof in which said lugs are in said notches said plate is clamped between the peak of the camming portions and said one wall of the battery case and said first and second contactors make electrical contact, and means for releasably latching said battery case from rotation when clamped to said plate.