ES1017650U - Device for extraction-retraction of extendible furniture boards. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Device for extraction-retraction of extensible boards of furniture, that comprises a mechanism of sliding, sliding sustained by supports-guide between a position of retraction, in which the extensible board (5a) is hidden inside the frame of the table o furniture (5) and another extension in which the extensible board (5a) occupies operational position and element elevation extensible board, that speaks, powered to spring, between a descended position, corresponding to the retraction of the sliding, and another ascended, corresponding to that of extension of the slider, characterized by what the sliding mechanism is determined by a profile in "U" (2), sustained by supports-previous guide (3) and subsequent (4) solidarity of the frame of the furniture (5), and with a limiter of advance based on a speed (6) transversely determined in a suitable point of its length and whereas the element of elevation of said extensible board (5a) is a per fil in "L" (7) inverted, to which such extensible board (5a) is fixed, which takes its highest position, once the slider (2) is extended and the extensible board (5a) has been extracted from the frame of the furniture (5), driven by the force of recovery of a helical spring (8), whose extremes are fixed, respectively to the profile in "U" (2) and to the profile in "L" (7), which are articularly coupled through another and subsequent cams or levers (7a), whose bottom lower and upper limits, respectively, joins these profiles (2-7) through axles of turn (7b), which is limited to the ascending route of the said profile in "L" (7) also by action of the transversal speed (6) of the profile or sliding (2) against the one who tops the previous of such cams (7b). (Machine-translation by Google Translate, not legally binding)