Patent ID: 8164887

Claim:
A keypad mechanism for portable electronic device comprising: a housing defining a plurality of through holes and a plurality of ribs formed between adjacent through holes of the plurality of through holes, a plurality of posts projecting from each rib of the plurality of ribs; a button assembly comprising a plurality of buttons arranged in button rows, each button row of the button rows being received in one of the plurality of through holes; two separate positioning elements, each positioning element of the two separate positioning elements positioned at an opposing side of the housing, a plurality of projections projecting from each of the two separate positioning elements, a plurality of receiving spaces defined between the plurality of projections of the each of the two separate positioning elements, a first end of the each button row received in a respective one of the plurality of receiving spaces of a first one of the two separate positioning elements and a second end of the each button row received in a respective one of the plurality of receiving spaces of a second one of the two separate positioning elements; and a resisting plate defining a plurality of connecting holes, the plurality of posts received in the plurality of connecting holes to latch the resisting plate and the button assembly to the housing.