Positioning device of a nail driver

A positioning device of a nail driver comprising:

• a tool body;
• a positioning unit in a front end of the tool body;
• the positioning unit having a nail output frame and a guide block formed by two sliding blocks;
• a nail output opening at a front end of the nail output frame;
• the nail output opening being between two sliding recesses;
• the two sliding blocks being movable installed into the sliding recesses;
• a guide opening formed between the two sliding blocks;
• when the two sliding blocks are separated, the guide opening expands;
• two positioning plates;
• each of two sides of the nail output frame having a respective one of the two positioning plates;
• two spring elements each spring element being confined by a respective one of the two positioning plates and a respective one of the two sliding blocks so that when no external force applies to the sliding blocks;
• the two sliding blocks move closer to one another by elastic forces of the spring elements;
• wherein an inner side of the guide block is an inclined arc surface with a large rear end and a small front end;
• the guide opening will enlarge with the separation of the two sliding blocks;
• and each of the upper side and the lower side of the sliding block has a rib;
• by the two ribs, the guide block is slidable along sliding recesses of the nail output opening;
• and a rear side of the sliding block has a resisting portion for resisting against the spring element.

A positioning device of a driver comprising:

• a tool body;
• a positioning unit in a front end of the tool body;
• the positioning unit having a nail output frame and a guide block formed by two sliding blocks;
• a nail output opening at a front end of the nail output frame;
• the nail output opening being between two sliding recesses;
• the two sliding blocks being movable installed into the sliding recesses;
• a guide opening formed between the two sliding blocks;
• when the two sliding blocks are separated, the guide opening expands;
• two positioning plates;
• each of two sides of the nail output frame having a respective one of the two positioning plates;
• two spring elements, each spring element being confined by a respective one of the two positioning plates and a respective one of the two sliding blocks so that when no external force applies to the sliding blocks;
• the two sliding blocks move closer to one another by elastic forces of the spring elements;
• wherein each of the positioning plate has an L shape;
• one end of the positioning plate has a retaining hole for being screwed by a screw so that the positioning plate is screwed into the screw holes of the nail output frame;
• another end of the positioning plate is formed with a resisting unit;
• by the resisting unit of the positioning plate and the resisting portions of the sliding blocks, the spring element is confined therein.