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Patent Searching and Data


Title:
UMBRELLA RIB ASSEMBLY AND FULLY AUTOMATIC UMBRELLA
Document Type and Number:
WIPO Patent Application WO/2020/040538
Kind Code:
A1
Abstract:
The present invention provides a fully automatic umbrella with a convenient structure, wherein, by modifying the structure of an umbrella rib assembly of a conventional semi-automatic umbrella, the fully automatic umbrella is unfolded like a conventional semi-automatic umbrella even when the strength of a compression spring is weaker than a compression spring used in the conventional semi-automatic umbrella, and the fully automatic umbrella can be automatically unfolded and folded by expansion forces of compression springs by simultaneously compressing a compression spring for unfolding the umbrella and a compression spring for folding the umbrella with a force with which a user does not feel uncomfortable. The present invention provides the umbrella rib assembly and the fully automatic umbrella using the umbrella rib assembly capable of unfolding the umbrella in accordance with the regulations even when the strength of the compression spring for unfolding is weakened, wherein the umbrella rib assembly comprises: a plurality of main umbrella ribs which are rotatably coupled to a main umbrella rib coupling portion formed on a main umbrella rib fixing member which is fixedly coupled to the upper end portion of an umbrella shaft; a plurality of auxiliary umbrella ribs which are rotatably coupled to an auxiliary umbrella rib coupling portion formed on the upper portion of an auxiliary umbrella rib fixing member which is slidably coupled to the outer side of the umbrella shaft under the main umbrella rib fixing member; and a plurality of pulling umbrella ribs which are rotatably coupled to a pulling umbrella rib coupling portion formed on a pulling umbrella rib fixing member which is slidably coupled to the outer side of the umbrella shaft under the auxiliary umbrella rib fixing member, wherein an enlarged pulling umbrella rib coupling protrusion, on which the pulling umbrella rib coupling portion is formed, is formed at a position separated a predetermined distance in the lower direction from the outer side of the upper end of the pulling umbrella rib fixing member which is adjacent to, when the umbrella is folded, the upper portion of the auxiliary umbrella rib fixing member, the opposite ends of the auxiliary umbrella ribs are rotatably coupled to the middle portions of the main umbrella ribs, and the auxiliary umbrella ribs and the opposite ends of the pulling umbrella ribs which are rotatably coupled to the pulling umbrella rib coupling portion are rotatably coupled to a position separated by a predetermined distance away from the auxiliary umbrella rib coupling portion which is formed on the upper portion of the auxiliary umbrella rib fixing member.

Inventors:
LEE BOO IL (KR)
Application Number:
PCT/KR2019/010628
Publication Date:
February 27, 2020
Filing Date:
August 21, 2019
Export Citation:
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Assignee:
LEE BOO IL (KR)
International Classes:
A45B25/14; A45B25/02; A45B25/12
Foreign References:
KR20100029614A2010-03-17
EP0151847A11985-08-21
EP0531572A11993-03-17
KR20110068569A2011-06-22
JPH01209004A1989-08-22
Attorney, Agent or Firm:
TEHERAN PATENT FIRM (KR)
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