Methods and systems for a bind free pivoting trigger mechanism

A mobile electronic device comprising:

• a trigger assembly comprising:
• a cylindrical pivot shaft having a pivot-shaft longitudinal axis,
• a trigger key having a front face, a back face opposite the front face, an actuator extending from the back face, a first end, and a trigger-key longitudinal axis, wherein the first end has a plurality of through holes arranged to receive the cylindrical pivot shaft such that the pivot-shaft longitudinal axis is perpendicular to the trigger-key longitudinal axis,
• a trigger-key support having an aperture for the actuator to pass through, the trigger-key support further having a plurality of pivot-shaft supports, wherein each pivot-shaft support includes a concave surface configured to receive the cylindrical pivot shaft, and
• a trigger bezel having a plurality of substantially flat surfaces positioned to constrain the pivot shaft;
• a circuit-board assembly comprising an electrical connector and a switch, the switch configured to be depressed by the actuator;
• and
• a housing configured to:
• mechanically receive the circuit-board assembly,
• electrically connect to the electrical connector, and
• removably attach to the trigger assembly.

A mobile electronic device comprising:

• a trigger assembly comprising:
• a cylindrical pivot shaft having a pivot-shaft longitudinal axis,
• a trigger key having a front face, a back face opposite the front face, an actuator extending from the back face, a first end, and a trigger-key longitudinal axis, wherein the first end has a plurality of through holes arranged to receive the cylindrical pivot shaft such that the pivot-shaft longitudinal axis is perpendicular to the trigger-key longitudinal axis,
• a trigger-key support having an aperture for the actuator to pass through, the trigger-key support further having a plurality of pivot-shaft supports, wherein each pivot-shaft support includes a concave surface configured to receive the cylindrical pivot shaft, and
• a trigger bezel having a plurality of substantially flat surfaces positioned to constrain the pivot shaft;
• a switch configured to be depressed by the actuator;
• and
• a data-acquisition device configured to actuate in response to the switch being depressed.