Umbrella with hollow staff and spring influenced canopy chords
OwnerTerry Hermansoninventor
Life of this patent
Estimating the term…
Abstract
An umbrella comprising a staff, a canopy, and chords having their outer ends secured to the canopy margin and their inner ends slidable on the staff and being under the influence of a spring while the canopy is moved from folded position to open position and wherein the canopy is under tension when it is open and wherein the canopy, the chords, and a portion of the staff form a stabilizing triangular structure when the canopy is open.
Claims8
In an umbrella having a canopy, a which has an outer margin and a central portion canopy supporting structure, and mechanism for opening said canopy,
- a slotted hollow staff,
- a slidable operating ring surrounding said hollow staff,
- a first telescoping member,
- a compression spring having opposed ends
- a second telescoping member supporting the center of the canopy
- a plurality of chords, having inner ends and outer ends
- a mounting member for pivotally securing the inner ends of said chords,
- means for securing said slidable operating ring through the slot of said staff to said first telescoping member,
- said first telescoping member having a first end engaging with said spring which is in engagement at said second end with said second telescoping member,
- the outer margin of said canopy being secured to the outer ends of the chords,
- whereby when the umbrella is in closed position and it is desired to open the umbrella, the slidable operating ring is moved upwardly to cause the first telescoping member to compress the spring which causes the second telescoping member to move upwardly and raise the center of the canopy and place it in tension and in turn causes the outer margin of the canopy to raise the outer ends of the chords, so that the canopy under tension, the chords, and the second telescoping member form a strong and stable triangular supporting structure.
In an umbrella having a canopy, a canopy supporting structure, and mechanism for opening said canopy,
- a slotted staff,
- a slidable operating ring surrounding said staff,
- a plurality of chords,
- a mounting member for pivotally securing the inner ends of said chords,
- means for securing said slidable operating ring through the slot of said staff,
- the outer margin of said canopy being secured to the outer ends of the chords,
- spring means associated with said mechanism influencing opening said canopy and for exerting pressure on said chords for maintaining the canopy under tension, whereby when the umbrella is in closed position and it is desired to open the umbrella, the slidable operating ring is moved upwardly to compress said spring means and to raise the center of the canopy under tension, so that the canopy under tension, the chords, and at least a portion of the staff form a strong and stable triangular supporting structure.
Dependencies are inferred from the claim text.