Patent ID: 6854474

Claim:
An openable and obliquely rotatable umbrella comprising: a rod body comprising an upper shaft and a lower shaft; an upper cell set firmly secured to a top of the upper shaft; a lower cell set slidably installed to the upper shaft and the lower shaft; two pulleys installed on the upper shaft; the two pulleys being an upper pulley and a lower pulley arranged in parallel; a rotatable tilting means installed between the upper shaft and the lower shaft; an umbrella surface installed on an surface expanded by a plurality of umbrella ribs fixing to the upper cell set; a spring installed at a lower end of an interior of the lower shaft; a pull line, a lower end of the pull line being connected to the spring; and an upper end thereof winding through the lower pulley and then being connected to the lower cell set; and a control switch installed to a distal end of an umbrella rib at an outer edge of the umbrella surface; a button being arranged within the control switch; the button controlling two pull lines; one of the pull lines serving for pulling two first studs in the rotatable tilting means; and another pull line serving for pulling a stop-proof block at a lower end of the upper shaft; whereby by the movement of the button of the control switch, the orientations of the umbrella in expanding and folding operation are adjustable.