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Wind Resistant Umbrella

Inactive Publication Date: 2007-09-13
YU CHUN HO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]The object of the present invention is to provide an umbrella which resists wind from easily flexing the ribs upward.

Problems solved by technology

The disadvantage of such umbrellas is that it involves the modification on the existing rib structure which usually results in a significant increase in the production cost.
Although the openings are covered by some shielding cloth, the heavy rain may still easily enter into the openings and wet the user.

Method used

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  • Wind Resistant Umbrella
  • Wind Resistant Umbrella
  • Wind Resistant Umbrella

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017]As illustrated in FIG. 1, a conventional umbrella 10 includes a shaft 20, an umbrella cloth 30 and a plurality of ribs 40 for supporting the umbrella cloth 30. The ribs 40 are movably engaged to the shaft 20 for opening and closing the umbrella 10. The ribs 40 may include main ribs 42 for attaching to the internal surface 32 of the umbrella cloth 30 and the branch ribs 44 for stretching the main ribs 42. The branch ribs 44 may be attached to a collar 50 slidable along the shaft 20 at one end and the main ribs 42 at the other end.

[0018]The umbrella 10 may be a foldable umbrella. In that case, the main ribs 42 may be foldable and the shaft 20 may be telescopic for folding the umbrella 10 when not in use.

[0019]When the umbrella 10 is open, the wind may assert undue pressure on the internal surface 32 of the umbrella cloth 30 and flex the main ribs 42 upward. In the embodiment as shown in FIGS. 1, 2 and 3, a strengthening member 100 is used to reinforce the main ribs 42. The stren...

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PUM

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Abstract

The umbrella having a shaft, a plurality of ribs movably engaged to the shaft, an umbrella cloth having a periphery and an internal surface attached on the ribs, and in addition, a strengthening member in form of a loop operatively associated to the internal surface of the umbrella cloth at a position adjacent to the periphery of the umbrella cloth. The size of the loop is smaller than the periphery of the umbrella cloth such that the strengthening member pulls the umbrella cloth against the ribs when the umbrella is open. The strengthening member reinforces the ribs against the upward force from the wind, and resists the ribs from flexing upward.

Description

PRIORITY CLAIM[0001]This application claims the benefit of priority from Chinese Patent Application No. 06102993.7, filed Mar. 8, 2006, which is fully incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates generally to umbrellas.BACKGROUND[0003]Most umbrellas, in particular the folding umbrellas, are easily flexed by strong wind which unduly asserts pressure on the internal surface of the umbrella cloth. Some umbrellas use ribs made of a flexible material to divert the wind, or rib structure specially designed to resist the wind. The disadvantage of such umbrellas is that it involves the modification on the existing rib structure which usually results in a significant increase in the production cost.[0004]PRC Pat. Publication No. CN 1264560A discloses an umbrella having openings on the umbrella cloth for the wind to pass through the umbrella cloth without causing much pressure on the ribs. Although the openings are covered by some shielding cloth, the he...

Claims

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Application Information

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IPC IPC(8): A45B25/18
CPCA45B25/22
Inventor YU, CHUN HO
Owner YU CHUN HO