Control structure for automatically opened and closed umbrella

Abstract

An improved control structure for automatically opened and closed umbrella is provided. The control structure contains a one-way wheel linked to a string of a bullet head or an upper nest, and further contains a locking arm and a positioning arm. When the umbrella is compressed, a vertical section of the locking arm moves towards and presses against the one-way wheel's ratchets. As such, if the umbrella is accidentally released during its closing operation, the one-way wheel is locked by the locking arm and the bullet head is therefore locked as well. The compressed shaft is then immediately positioned without being affected by the suddenly released opening spring. The umbrella is therefore much safer to operate.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The present invention generally relates to a control structure for an automatically opened and closed umbrella, and more particularly to such a control structure where a one-way wheel is employed to protect the safety of an operator by preventing the umbrella from sudden opening during the closing operation.DESCRIPTION OF THE PRIOR ART[0002]A conventional control structure for an automatically opened and closed umbrella is shown in FIGS. 1 to 3. As illustrated, the control structure is installed in a handle 20 of the umbrella and mainly contains a hollow main body 10 with a control ring 11 inside. The control ring 11 has a control rod 12 configured to a side under the control ring 11. A push button 13 is configured on the same side of the main body 10 and is exposed out of the handle 20 to control the operation of a shaft 30.[0003]As shown in FIG. 1, a small spring 111 is configured to a side of the control ring 11 opposite to the control rod 12...

AI Technical Summary

Benefits of technology

[0005]Therefore, an improved control structure for automatically opened and closed umbrella is provided herein. The gist of the present invention lies in the adoption of a one-way wheel linked to a string of the bullet head. When an operator mistakenly releases the shaft during the umbrella's closing operation, the one-way wheel is locked and therefore the linked bullet head does not shift either. The shaft is thereby positioned and does not thrust by the expansion of the opening spring. An umbrella according to the present invention is therefore much safer to operate.

Problems solved by technology

A substantial problem with the conventional umbrella is that, when the umbrella is closed as described above, the opening spring 60 inside the shaft 30 has to be compressed with significant force.

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