Patent ID: 6189845
Filing Date: 2001-02-20
Classification: F16M,Y10T

Abstract:
A tripod, comprising:a platform of a determined shape and having an upper side forming a contact surface, said contact surface being provided with a platform pad and a securing screw for mounting lockably a photographic apparatus, said platform further having a lower side;a base being connected to said lower side of said platform and having joints connecting both lateral sides with said platform such that said platform can, using the joints as pivots, deviate within a limited distance so as to allow angle and position adjustments of said photographic apparatus on said platform, said base having a bottom side; anda plurality of legs being assembled to said bottom side of said base, said legs being telescopic to allow length adjustment and being provided to support said tripod in a firm and stable manner, whereina through hole goes from one lateral side of said base to the other lateral side, an axial block being fitted into one end of said through hole for abutting a corresponding surface of said platform, the other end of said through hole being provided with a nut receiving recess and a left clutch receiving recess receiving a nut and a left clutch, respectively, a right clutch being provided on a corresponding side of said platform, a rotary knob having a screw rod passing through said platform to screwably join said right clutch, said left clutch, and said nut, said rotary knob being turnable to drive said screw rod thereof into said base so that teeth of said left and right clutches inter-engage to achieve firm positioning of said platform, said rotary knob being turnable in a reverse direction to cause said screw rod to withdraw so that said teeth of said left and right clutches disengage, whereby said platform is unconstrained and can deviate for adjustment purposes.