Forward acting, staple machine with passive release

A fastening device comprising:

• a housing having a front end with finger openings, a bottom, and an internal wall;
• a vertical track having a base coextensive with the housing bottom, and located at the front end of the housing;
• a plunger slidably disposed within the vertical track;
• an ejection opening in the housing bottom at the base of the vertical track;
• a wobble lever having a front end and a back end, hingeably attached to the internal wall at a first pin, wherein the back end includes an open slot;
• a roller linkage disposed within the open slot;
• a handle lever having a distal end and a proximal end, wherein the proximal end is hingeably attached to the internal wall, and includes a bearing surface engaging the roller linkage;
• a lateral pressure spring attached to the internal wall and the back end of the wobble lever, biasing the front end of the wobble lever in a first vertical direction;
• a flat spring pivoting on the internal wall linked to the front end of the wobble lever through an angled tab to bias the front end in a first lateral direction, and biasing the front end of the wobble lever in the first vertical direction, and wherein the front end of the flat spring engages the plunger;
• a release ledge disposed on the internal wall near the front end of the wobble lever, laterally positioning the front end of the wobble lever in a second lateral direction that has an opposite sense to the first lateral direction;
• a means for feeding fasteners, disposed in the housing placing a fastener at the base of the vertical track;
• wherein depressing the distal end of the handle lever displaces the back end of the wobble lever in the first vertical direction by transfer of force through the roller linkage;
• wherein the displacement of the wobble lever pivots the front end thereof in a second vertical direction having an opposite sense to the first vertical direction, and simultaneously displacing the plunger in the second vertical direction;
• wherein continuous displacement of the front end of the wobble lever slides the front end thereof out of engagement with the release ledge and the angled tab forces the front end of the wobble lever in the first lateral direction disengaging the front end of the wobble lever from the flat spring;
• wherein the released flat spring moves in the first vertical direction and simultaneously moves the plunger in the first vertical direction, and the plunger striking a fastener in the vertical track and ejecting the fastener out of the housing through the ejection opening;
• wherein the lateral pressure spring biases the back end of the wobble lever in the first lateral direction and pivoting the front end of the wobble lever in the second lateral direction;
• and
• wherein the lateral pressure spring biases the front end of the wobble lever in the first vertical direction, pivoting the back end of the wobble lever in the second vertical direction and the wobble lever slidably and resiliently engaging a return cam thereby displacing the front end of the wobble lever in the first lateral direction, positioning the front end of the wobble lever in engagement with the front end of the flat spring.