Patent ID: 6112755
Filing Date: 2000-09-05
Classification: A45B

Abstract:
A penta-fold automatic umbrella comprising:a central shaft (1) including: a lower tube (11) having a grip (12) secured therewith, a first middle tube (13) slidably held on said lower tube (11), a second middle tube (13a) slidably held on said first middle tube (13), a third middle tube (13b) slidably held on said second middle tube (13a), an upper tube (14) slidably held on the third middle tube (13b) having an upper notch (15) fixed on a top of the upper tube (14), and a central sleeve (17) fixed in the shaft (1);a rib assembly (2) including at least a top rib (21) pivotally secured to the upper notch (15), a stretcher rib (22) pivotally connected to the top rib (21) and a lower runner (23) slidably held on the upper tube, an intermediate rib (24) inwardly pivotally connected to said top rib (21), an inner connecting rib (25) pivotally connected to the stretcher rib (22), and said intermediate rib (24) outwardly pivotally connected to a middle connecting rib (28a) and a middle spring rib (27a), a tail rib (26) connected to an outer spring rib (27) and an outer connecting rib (28) with said outer spring rib (27) connected to the middle connecting rib (28a) and with said outer connecting rib (28) connected to the middle spring rib (27a), and an inner spring rib (27b) juxtapositioned to said intermediate rib (24) and connected between the top rib (21) and the middle connecting rib (28a);an opening spring (3) resiliently retained in said central shaft (1) for opening the umbrella;a plurality of closing springs (4) resiliently retained on said rib assembly (2) for closing the umbrella; anda control means (5) including a push button (51) resiliently held in the grip (12), an upper latch (52a) normally locking the rib assembly (2) and the central shaft (1) at a closed state and operatively actuated for extending the rib assembly (2) and the shaft (1) for opening the umbrella, a closing controller (53) having a lower latch (54) formed on an anti-false operation safety means (57) resiliently held in the grip and the lower latch (54) operatively depressible by the push button (51) for unlocking a locking head (551) for closing the umbrella from an opened umbrella, said locking head (551) secured to a lower rope (56a) deflectively wound on a sliding pulley (P2) slidably held in said central sleeve (17) and said lower rope (56a) forming two folds of the penta-fold umbrella, and an upper rope (56b) having an inner rope end connected to said sliding pulley (P2), with said upper rope (56b) deflectively wound on an upper guiding roller (563) rotatably mounted on an upper portion of the upper tube (14), then downwardly directed from said upper guiding roller (563) to be wound on a lower guiding roller (564) rotatably mounted on said lower runner (23) and then deflected upwardly to be wound on an uppermost guiding means rotatably mounted on a top of said upper tube (14) above said upper guiding roller (563) and finally deflected downwardly to have an outer rope end of said upper rope (56b) fixed on said lower runner (23), with said upper rope (56b) forming triple folds of the penta-fold umbrella; thereby forming an umbrella with total penta folds by said lower rope (56a) and said upper rope (56b).