Patent ID: 9504298
Filing Date: 2016-11-29
CPC Classification: A45B

Claim Text:
1. A tilting mechanism used in an umbrella, comprising: a base, having a base pin hole defined substantially perpendicular to the upright direction of the base proximate to one side of the base, a wheel moving surface slanted against the upright direction of the base, a wheel axle guiding groove, and a base mounting hole defined at a lower portion of the base, the base mounting hole adapted for mounting the base on top of a lower shaft of the umbrella; a body, having a round upper portion and a U-shaped lower portion forming a wheel holder having a wheel axle groove on each side of the U-shaped lower portion, a pin positioned in a body pin hole defined in the U-shaped lower portion, the pin extending to the base pin hole of the base to form a joint joining the base and the body, a body mounting hole defined at the round upper portion of the body, a restricting pin, a spring, a first washer positioned on top of the body, and a second washer positioned under the restricting pin, wherein the spring is installed between the first washer and the second washer to provide a resilient force to keep the sliding rod away from the body and maintain the wheel axle in its highest position of the wheel axle grooves, when the umbrella is in an upright and open position, and wherein the body mounting hole is adapted for mounting the body at bottom of an upper shaft of the umbrella; a sliding rod, having a pulley axle for mounting a pulley, a link pin for linking an angular link rod, a sliding rod top ring, a sliding rod top ring mounting hole defined substantially perpendicular to the upright direction of the base through the sliding rod top ring, two mounting screws to mount the sliding rod top ring on the top end of the sliding rod, and a pulley slot adapted for installing the pulley on the pulley axle, wherein the angular link rod has a first end connected through the link pin to the sliding rod, and a second end connected to a wheel through a wheel axle and wherein the wheel axle extends to the wheel axle grooves on each side of the U-shaped lower portion of the body; and a winding device installed on the lower shaft of the umbrella, having a crank, and a cord having a first end connected to a first cord stop on a crank axle of the crank, and a second end connected to a second cord stop on a runner of the umbrella through the pulley positioned on the sliding rod, wherein, when the umbrella is in an upright and closed position, a user turns the crank clockwise, the cord is pulled downwards, causing the runner to move upwards to open the umbrella until the runner is stopped by a runner stopper, and when the umbrella is in the upright and open position, the user continues to turn the crank clockwise, the cord is pulled further down, the sliding rod is pushed downwards causing the wheel to travel along the wheel moving surface, and the wheel axle grooves push the wheel axle to tilt the body around the pin.