Safety automatic umbrella folding and unfolding structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 张书闵
- Publication Date
- 2014-04-23
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
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Abstract
Description
technical field
[0001] The invention relates to the structure of an umbrella, specifically an automatic opening and closing umbrella, which can effectively control the umbrella surface when the umbrella is closed, and prevent the middle stick from popping out when the umbrella is closed. Background technique
[0002] Automatic open and close umbrellas are welcomed by consumers because they can automatically open and close the umbrella surface and are easy to control, and thus extend a variety of products, such as two-fold automatic open and close umbrellas, three-fold automatic open and close umbrellas, and four-fold automatic open and close umbrellas. Automatically open and close the umbrella; and there are multiple ways to control the automatic opening and closing.
[0003] But the commonly used automatic opening and closing umbrella has a big disadvantage. When closing the umbrella, first draw in the umbrella surface, and then need to forcefully pull down the nest or pres...