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Windproof umbrella with integral upper canopy and method of making same

a technology of windproof umbrellas and upper canopy, which is applied in the direction of walking sticks, etc., can solve the problems of reducing manufacturing costs and achieve the effects of enhancing windproof effect, reducing manufacturing costs, and simplifying the manufacturing process

Inactive Publication Date: 2007-07-05
YOU CHING CHUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] It is therefore an object of the present invention to provide a windproof umbrella having an integral upper canopy and a method of manufacturing same without involving a cutting step. Also, no creases and looseness in a central portion of the umbrella are formed. Further, the manufacturing process is much simplified, resulting in a decrease in the manufacturing cost. Furthermore, the windproof effect is much enhanced.

Problems solved by technology

Further, the manufacturing process is much simplified, resulting in a decrease in the manufacturing cost.

Method used

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  • Windproof umbrella with integral upper canopy and method of making same
  • Windproof umbrella with integral upper canopy and method of making same
  • Windproof umbrella with integral upper canopy and method of making same

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Embodiment Construction

[0020] Referring to FIGS. 2 to 8 and 11, a windproof umbrella in accordance with a preferred embodiment of the invention comprises a folding radial frame 2, an upper canopy 4, and a lower canopy 3 having a central opening (not shown). The frame 2 comprises a center post 21, a plurality of stretchers, and a plurality of ribs 22 having one end pivotably connected to a top of the post 21. The upper canopy 4 is secured onto upper portions the ribs 22, has a center secured to the top of the post 21, and is positioned in a partial covering relation to an upper edge of the lower canopy 3 as detailed later.

[0021] A manufacturing process of the upper canopy 4 is illustrated below. The upper canopy 4 is formed of an integral piece of polygonal cloth 41 having eight corners 43. Note that the cloth 41 may have six corners or a number of corners other than eight. Next, form a substantially conic member 42 on a joining end of one corner 43 and another adjacent corner 43. The conic member 42 has ...

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PUM

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Abstract

Windproof umbrella and method of making same are disclosed. The method includes providing an integral, polygonal cloth having corners; forming substantially conic members each disposed on a joining end of one corner and another adjacent corner by shaping and stitching; providing a folding radial frame; securing a lower canopy having a central opening onto the frame; and securing the cloth onto the frame to form an upper canopy having sectors in covering relation to the central opening. The conic members are substantially flat in an inoperative state and are expanded to form a substantially conic shape in response to high winds. Each escape path for wind is thus formed between the sector of the upper canopy and an upper edge of the lower canopy. No cutting is involved in the method. Also, no creases and looseness in a central portion of the umbrella are formed.

Description

BACKGROUND OF THE INVENTION 1. Field of Invention [0001] The present invention relates to windproof umbrellas and more particularly to a windproof umbrella having an integral upper canopy and a method of manufacturing same. 2. Description of Related Art [0002] A conventional windproof umbrella 1 disclosed in U.S. Pat. No. 4,979,534 comprises an upper canopy 12 and a lower canopy 11 both stretched over a folding radial frame 10. A plurality of vent holes are formed on the lower canopy 11 and at least one vent hole is formed on the upper canopy 12. A plurality of escape paths for wind 13 are formed between the upper canopy 12 and the lower canopy 11 when strong wind exerts an upward force from an underside of the umbrella 1 to resiliently slightly pull the upper canopy 12 away from the lower canopy 11 about a top of a center post. However, the upper canopy 12 is not formed integrally. In fact, eight triangular sectors 14 of cloth are stitched together to form an upper canopy 12 in the...

Claims

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Application Information

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IPC IPC(8): A45B25/20
CPCA45B25/22
Inventor YOU, CHING-CHUAN
Owner YOU CHING CHUAN