ES447879A1 - Perfections in piezo-electric ignition devices. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in piezoelectric ignition devices, especially for gas lighters, with a parallelepiped box in which, in coaxial arrangement, a piezo element, a cap-shaped pushbutton and a recovery spring for this and, on the pushbutton, are located a cylindrical hammer and a compression spring as an energy accumulator for this, and in which the firing pin presents a crutch located transversely to the direction of impact, which fits through a window, at least, of the push button, provided of pilot edges located transversely to the direction of impact, and in an L-shaped guide of the box, whose shorter branch, located in the plane of the crutch, forms the locking seat for the crutch, of which it can be raised by rising on a pilot edge at the end of a relative movement between the push button and the box after tensioning the compression spring n, with firing of the hammer around an axis lying in the direction of impact, and whose longer branch, located in the direction of impact, forms the guide for the crutch during the hammer jump, characterized in that the box (6) ) and the push button (1) are injected castings, that the box (6) has a substantially square contour on the outside in the cross section and, in the interior, with a contour or discrepant profile thereof, circular in the limit case, it forms a guide (6.2, 9) for the pushbutton (1), which in its outline fits in that one, and that the longest branch (6.3) of the guide for the tagline (4) is cut in the area of greater wall thickness of the box. (Machine-translation by Google Translate, not legally binding)