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Automatic straight umbrella

a straight umbrella and automatic technology, applied in the direction of walking sticks, transportation and packaging, building components, etc., can solve the problems of increasing the possibility of work out, difficult assembly, and complicated structure of prior umbrellas

Inactive Publication Date: 2005-02-03
CHANG CHEN MAAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is an automatic opening / closing straight umbrella that provides a novel structure for opening and closing the umbrella automatically. The structure is simple for assembly and improves utility. The invention includes a shaft, inner springs, a wire, and a bullet head for engagement. The outer tube of the umbrella has a stopper and a coil spring, and a power rod with a stopper and a tongue that can engage with an aperture on the outer tube. The middle joint and the upper joint move upward when the power rod is pushed upward, lifting the frame and the runner. The invention allows for easy opening and closing of the umbrella with a simple button."

Problems solved by technology

The structure of prior umbrella is very complicate, and the springs and the wire as well as the bullet head are all received in the same place of the shaft.
The assembly is difficult and it increases possibility of work out.

Method used

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Embodiment Construction

[0011] Referring firstly to FIGS. 1 and 4, the present invention relates to an automatic straight umbrella, which can be opened and closed automatically. The umbrella includes a shaft (1), which connects its lower end with a handle (16) and its upper end with an upper joint (13). An outer tube (14) provided around the shaft (1) slidably connects with middle joint (15) at upper end. A runner (4) is provided around the outer tube (14) slidably. The frame (5) has the inner end of each rib to connect with the upper joint (13), the middle joint (15), and the runner (4) respectively. A spring (51) is provided between the frame (5) and the runner (4).

[0012] A power rod (2) is provided to insert into the shaft (1) from its lower end. A connector (21) is provided on top of the rod (2), and has a sideward convex (211), which just positions in upper slot (11) of the shaft (1). An upper spring (7) is received in the shaft (1) over the connector (21) while a lower spring (6) is under the connec...

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Abstract

The present invention relates to an automatic straight umbrella, which includes a power rod received in the shaft of the umbrella. The rod can be pressed for storing energy to open or close umbrella automatically by the recovery forces of lower spring and upper spring in the shaft. The novel structure of the automatically is simple and utilized for use and assembly.

Description

BACKGROUND OF THE INVENTION [0001] A conventional umbrella being capable of opening and closing automatically is used popularly. The known automatic umbrella includes a shaft provided with inner springs and a wire connecting with a bullet head for engagement. Before use, the shaft of the umbrella must be pressed firstly for compressing the inner springs to provide opening or closing force. The structure of prior umbrella is very complicate, and the springs and the wire as well as the bullet head are all received in the same place of the shaft. The assembly is difficult and it increases possibility of work out. [0002] Accordingly, the present invention is to provide an automatic opening / closing straight umbrella, which provides a novel structure for opening or closing the umbrella automatically. And the structure is simple for assembly that obtains improvement and utility.BRIEF DESCRIPTION OF THE DRAWINGS [0003] The following drawings indicate the character and improvement of the pre...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A45B9/02A45B25/06A45B25/14E04B1/34
CPCA45B9/02A45B25/143A45B25/06
Inventor CHANG, CHEN-MAAN
Owner CHANG CHEN MAAN