Patent ID: 7946520
Filing Date: 2011-05-24
Classification: B65H,Y10T

Abstract:
1. Hose reel comprising a support casing, a drum rotatably fitted inside said casing and connected to the casing by a rewind spring, a flange integral with the drum and couplable in rotation with a locking disc equipped with teeth and said locking disc being movable between a first position axially distanced from said flange and a second position axially near said flange in which said teeth of the locking disc engage with opposed teeth on the casing capable of arresting rotation of the drum, a separating spring interposed between said flange and said locking disc to maintain the latter in said first position, at least one tooth and at least one counter-tooth respectively integral with said flange and said locking disc which are mutually engaged so as to allow said flange to integrally rotate with said locking disc and said drum, and a cam and counter-cam respectively integral with said flange and said locking disc which in the event of a predetermined threshold speed being exceeded by said flange cause a brake shoe rotating with said locking disc to engage the casing and thereby cause axial displacement of said locking disc into said second position to produce consequent stopping of the rotation of the drum, said opposed teeth being integral with a stopping disc which is axially held against said casing with interposition of a friction ring capable of allowing a limited rotation of said stopping disc with respect to said casing in the event that rotation speed of said locking disc exceeds said predetermined threshold by a pre-established value, said friction ring being made of rubbery material.