| 摘要 |
<p>The invention relates to an improved gun for forcibly inserting fixing elements, such as nails, comprising an operating piston (25) carrying an arm (33) destined to fire the fixing elements, which slides in a cylinder (18) open at one extremity (18a) towards the compressed air tank (7) provided in the stock (1) of the gun.
<??>The displacements of the operating piston (25) are imposed by a control piston (57) situated above the said open extremity (18a), while the said operating piston (25) takes its movement from a valve (68), operated by the trigger (72) of the gun, movable between two extreme configurations.
<??>With the gun, the following is involved: limited travel of the valve (68) between its extreme configurations; a control piston (57) conformation such as to limit its inertia and pressure losses between the cylinder (18) and the tank (7); an operating piston (25) conformation such as to render it impact resistant and anchored firmly to the corresponding ejector arm (33). </p> |
