Strutless type umbrella

a technology of umbrellas and struts, applied in umbrellas, walking sticks, clothing, etc., can solve the problems of not being able to meet the requirements easily, and achieve the effect of reducing thickness

Inactive Publication Date: 2009-03-19
LASIES INVESTMENTS & ENTERPRISES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0023]Preferably, the free ends of the rib levers are located between upper and lower restricting members forming a slide in which rounded upper and lower surface of the rib levers can slide when the rib assemblies are forced to pivot upon a linear movement of the slide in line with the longitudinal axis of the umbrella. The upper and lower restricting members are secured to each other and to th

Problems solved by technology

One problem that should be addressed when designing a strutless umbrella is the dimensions of the umbrella in its folded state, which should prefe

Method used

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Examples

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Embodiment Construction

[0036]Referring to FIGS. 1A-1C and 2, there is illustrated an example of a canopy conducting mechanism of the present invention, which in the present example is based on a pin-and-slide joint. The latter is of the type defining an elongated contact region between a pin (i.e., a cylindrically-like element with circular or other rounded base surfaces) and a slide plane, the contact region thus being a line along the cylinder-like generator. FIGS. 1A-1C show, in partial vertical cross section view (taken at A-A of FIG. 2), three operational states, respectively, of the mechanism, and FIG. 2 shows a partial lateral cross section view (taken at B-B of FIG. 1B) of the canopy conducting mechanism in its state of FIG. 1B.

[0037]In the illustrated embodiment, a pin 300 of the pin-and-slide joint is actually the end portion of a rib lever 303 of an umbrella rib body 301. Pin 300 is also referred to in the context of the present invention as “the free end of the rib lever”. In this example, pin...

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Abstract

Umbrella rib assembly is presented for use in strutless umbrella having a pin and slide canopy conducting mechanism. The rib assembly comprises a longitudinal rib body having a pivot member at its end, and a rib lever extending from the rib body, and being characterized in that the pivot member and the rib body together with the rib lever present a single piece of material, and the pivot member is located in a corner formed between the rib body and the rib lever.

Description

FIELD OF THE INVENTION[0001]This invention is generally in the field of umbrellas, and relates to s strutless-type umbrella.BACKGROUND OF THE INVENTION[0002]Up to date most if not all umbrellas in the market make use of struts extending between the umbrella stick and the canopy for supporting the canopy ribs at some mid portion thereof. Strutless umbrellas (i.e. having a canopy without stretchers extending between the umbrella post and the ribs) are known in the patent literature, and are described for example in the following patents:[0003]U.S. Pat. No. 5,711,234 discloses a strutless umbrella which includes a central post, either an inner plunger or tube, a canopy assembly including ribs pivotally mounted on the upper end of the central post. Links connect the ribs to the inner plunger or tube. Movement of one of the ribs moves the plunger or tube which moves the remaining ribs. A latch pin holds the umbrella in the open position.[0004]U.S. Pat. No. 5,638,846 discloses an umbrella...

Claims

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Application Information

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IPC IPC(8): A45B23/00A45B25/02
CPCA45B25/10A45B25/14A45B25/22A45B25/165A45B25/143
Inventor AMSEL, CHAIM SIMCHA
Owner LASIES INVESTMENTS & ENTERPRISES
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