Automatic opening and shutting umbrella

An automatic collapsible umbrella (100) comprising a frame (1), a plurality of tension springs (2) attached to said frame (1), a central telescopic stick (3), an upper cap (6), a runner (7), a button (8), a main body (9), a handle (50), a guiding tube (10), an in-line spring (20) and a bumper spring (30);

• said central telescopic stick (3) consists of an outer tube (31), a middle tube (32) and an inner tube (33);
• the guiding tube (10) is provided in the inner tube (33);
• said in-line spring (20) sheathing the guiding tube (10) and disposed between said inner tube (33) and guiding tube (10);
• said upper cap (6) is fixed onto a top end of the outer tube (31) and said runner (7) is movably mounted to said outer tube (31), the main body (9) is provided in the handle (50) and fixed onto a bottom end of the outer tube (31);
• said frame (1) connects said upper cap (6) and the runner (7) respectively;
• said button (8) is provided onto said main body (9);
• characterized in that:
• said collapsible umbrella (100) includes further an automatic opening/shutting system (4) and an idle-popup resistant device (5);
• said automatic opening/shutting system (4) consists essentially of a pulley seat (41), a first pulley wheel (42), a second pulley wheel (43), a string (44), a bullet-shaped locking head (45), a tube (46), a stopper (47), a spring (48), a securing member (49), a securing spring (401), a sliding block (402) and a spring (403);
• said pulley seat (41) is disposed in the outer tube (31) approximated to said upper cap (6);
• said first pulley wheel (42) is provide in the seat (41) and said second pulley wheel (43) is provided in the runner (7);
• an end of said string (44) is attached to said upper cap (6), said string (44) passes over both the first and second pulley wheels (42, 43), allowing another end thereof passing said inner tube (33) and fixed to said bullet-shaped locking head (45);
• said tube (46) is provided at an end of said inner tube (33) and sized for allowing the bullet-shaped locking head (45) sliding therein;
• said stopper (47) the spring (48) are provided horizontally inside the main body (9) and an end of said stopper (47) butts a rear end of the locking head (45), securing the position thereof;
• the securing member (49) and securing spring (401) are provided in the main body (9) horizontally and above said stopper (47);
• an end of said securing member (49) engages a slot provided at a bottom end of the outer tube (31);
• said sliding block (402) and spring (403) are freely attached to the end of the inner tube (33) respectively and said spring (403) is compressed between the sliding block (402) and main body (9);
• said idle-popup resistant device (5) comprising a tow rope (51), a ratchet wheel (52), a ratchet wheel supporter (53), a spiral spring (54), a pawl (55) and a restoring spring (56);
• said tow rope (51) having an end fixed to the pulley seat (41);
• the tow rope (51) passes through said inner tube (33), the bullet-shaped locking head (45) and having another end thereof winding said ratchet wheel (52);
• said ratchet wheel (52) has an axle whose both ends are extended outwardly allowing the ratchet wheel (52) rotatably provided on the ratchet wheel supporter (53), which is provided in the main body (9) and at an bottom end of the tube (46);
• said spiral spring (54) enwinds the axle of the ratchet wheel (52), an end of said pawl (55) pin jointed to the inner of the main body (9), a projection (551) is extended horizontally from the pawl (55) and passes through a groove set on a side wall of said tube (46) butting the bullet-shaped locking head (45);
• said restoring spring (56) is provided between a rear side of the pawl (55) and inner wall of main body (9);
• said bumper spring (30) is located in the outer tube (31) and is compressed between said middle tube (32) and the seat (41).