Tent – canopy – umbrella – or cane – Umbrella – Self-opening and closing
Patent
1990-11-21
1993-05-18
Friedman, Carl D.
Tent, canopy, umbrella, or cane
Umbrella
Self-opening and closing
135 252, 135 253, A45B 2514
Patent
active
052111997
ABSTRACT:
The invention relates to a self-opening topless pocket umbrella having a escopic stick and a collapsible canopy framework arranged radially on the stick in the form of scissor-link folding systems which can be spread out by means of an opening spring and collapsed manually by a slider which is displaceable on the telescopic stick, the respective scissor-link folding system each having a pair of scissor levers, of which an upper scissor lever is linked to the umbrella crown, while the lower scissor lever engages the slider in an articulated manner. In order to make the opening mechanism smoother and to protect the umbrella stick from being scratched as well as, moreover, to design the closed umbrella to be thinner in its cross-section and more pocket-sized, the invention provides that two arms (K', K") of the respective scissor levers (4, 5), together with an intermediate strut (14) arranged between them, form a double lever triangle (D', D"), the intermediate strut (14) engaging at one end on an intermediate crown (C"), which is fixed non-displaceably to the end (1a) of the stick, and engaging at the other end on, or directly adjacent to, the scissor lever cross-joint (6), and that the crown (C') with the joint (7) of the upper scissor lever (4) carries out a free stroke in relation to the intermediate crown (C") when the canopy is opened under the effect of the opening spring (F) stressed between the crown and the telescopic stick (1).
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Seidel Joachim
Stiller Klaus
Friedman Carl D.
Kortenbach Verwaltungs-Und Beteiligungs Gesellschaft/mbH & Co.
Mai Lan M.
Meerkreebs Samuel
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