US 5,253,666 AGranted

Umbrella opening and closing device without use of spring latches

AssigneeYung Shun Umbrella Co., Ltd.

InventorShih-Chen Huang

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Abstract

An umbrella opening and closing device adapted for a non-foldable umbrella and is particularly characterized in its simple structure and the lack of conventional spring lactches used to support the main runner in place when the canopy of the umbrella is opened. The present opening and closing device is made up of a first retainer extended from a fixed upper mounting member and a second retainer secured to the slidable main runner that are able to be tightly engaged with each other when the umbrella is opened and can be forced to separate when the umbrella is to be collapsed. A rib fixing ring having a plurality of securing recesses disposed on the periphery thereof is located just below the second retainer for the catching of the ribs of the closed umbrella. The first retainer is provided with a number of female cavities and the second retainer is provided with a number of male protrusions; each male protrusion and each female cavity is made integrally complementary in shape to each other so that each protrusion can be tightly fitted in the corresponding cavity when the first retainer and the second retainer is engaged with each other so as to firmly keep the main runner in place for opening the umbrella.

Claims1

Dependent claims

An umbrella opening and closing device without use of spring latches comprising a first retainer and a second retainer and a rib securing ring having a plurality of spaced securing recesses defined on the periphery thereof;

said first retainer being extended downwardly from an upper mounting member to which the main frame of an umbrella is pivotally attached and having a number of .OMEGA. shaped female cavities disposed thereon;
said second retainer integrally extended from a main runner having a plurality of spaced grooves disposed thereon in which the stretching ribs of said umbrella are pivotally located;
and said grooves being positioned in linear alignment with said securing recesses so that the stretching ribs can be firmly engaged with said securing recesses when said umbrella is closed for receiving;
said second retainer being provided with a number of .OMEGA. shaped male protrusions disposed at the top end thereof which are integrally complementary in shape to said female cavities so as to permit the two to be tightly engaged with each other when said main runner is pushed upward along the central post of said umbrella so as to keep the canopy of said umbrella opened which is disposed on top of said main frame pivotally connected to said stretching ribs which are pivotally associated at another end with said main runner.

1 more element

Dependencies are inferred from the claim text.