Abrégé

An anti-turning umbrella frame is revealed. The anti-turning umbrella frame includes a plurality of inner main ribs, a plurality of inner connecting ribs, a plurality of middle main ribs, and a plurality of stretchers. An outer end of the inner main rib is riveted to an inner end of the middle main rib to form a first rivet point. The anti-turning umbrella frame features on that a positioning portion is disposed on an inner side of the first rivet point of the inner main rib while a locking portion corresponding to the positioning portion is arranged at or close to the outer end of the inner connecting rib. The locking portion is locked with the positioning portion while the umbrella frame is opened. Thereby the inner main rib and the middle main rib are connected to form a rigid body for preventing the middle main rib from turning over.

Classes IPC  ?

• A45B 25/02 - Armatures de parapluies
• A45B 19/10 - Pliage spécial ou télescopage des parapluies à baleines pliantes
• A45B 25/22 - Dispositifs pour accroître la résistance des parapluies au vent
• A45B 25/14 - Dispositifs pour ouvrir ou fermer les parapluies
• A45B 25/16 - Systèmes d'ouverture automatique, p. ex. armatures avec mécanismes à ressort
• A45B 25/00 - Parties constitutives des parapluies

Abrégé

A protective device for automatic open close umbrellas is revealed. The protective device includes a ratchet mounted in a handle and rotating elastically for retracting or releasing a string, a string whose bottom end is fixed on the ratchet while a top end is fixed on an outer tube of an umbrella shaft or a core tube, and a locking member that is reverse L-shaped and is arranged with an elastic member for turning back therein. The locking member includes an upper part, a lower part, and a middle axle, used as a first-class lever. The upper part is against the bottom of the umbrella shaft so that the fastener can lean against a top surface of the upper part. When the umbrella shaft is gradually folded, the top surface of the upper part of the locking member is separated from the fastener while the bottom of the lower part is locked to one of the ratchet teeth of the ratchet elastically so as to achieve anti-springing effect.

Classes IPC  ?

• A45B 25/14 - Dispositifs pour ouvrir ou fermer les parapluies
• A45B 25/16 - Systèmes d'ouverture automatique, p. ex. armatures avec mécanismes à ressort