Tent – canopy – umbrella – or cane – Umbrella – Ribs and stretchers
Patent
1992-10-27
1994-07-19
Friedman, Carl D.
Tent, canopy, umbrella, or cane
Umbrella
Ribs and stretchers
135 27, 135 26, 135 39, 135 42, A45B 1904
Patent
active
053299531
DESCRIPTION:
BRIEF SUMMARY
TITLE OF THE INVENTION
The invention relates to an umbrella, in particular a stand umbrella, large sunshade, garden umbrella and the like, having a framework, a roof construction and an umbrella roof, in which the roof rods are articulated on a pole part, which is displaceable telescopically with respect to the stand tube and bears a crown, and displaceable along the stand tube is a runner, on which supporting struts articulated on the roof rods act in a jointed manner, crown and runner moving oppositely upon opening and closing of the umbrella.
Umbrellas as garden or market umbrellas of the above type are known in which the movements of the umbrella pole and of the runner take place in dependence on each other by restrained means, for example by means of a threaded spindle, the runner being connected to the umbrella pole by means of a flexible drawing element, led over a deflection roller. Furthermore, garden umbrellas or the like are known in which the movements of the crown and of the runner take place oppositely in mutual dependence. In this case, the construction is designed in such a way that, in the capability of acting oppositely, the center of gravity of the roof construction remains at least approximately at the same level, so that only forces which are so small that they can be readily applied manually have to be exerted for the opening and closing of the umbrella. Such a type of umbrella has the disadvantage that although the pushing-up of the runner can be effected by hand, the tensioning of the umbrella roof, the exertion of force for which requires a multiple of the force to be exerted for opening the umbrella, cannot. Such an umbrella is not resistant to wind and storms.
SUMMARY OF THE INVENTION
The object of the invention is to provide a stand umbrella, in particular a large sunshade, in which the opening of the umbrella and the required tensioning of the umbrella roof for resistance of the same to storms can be performed easily and in a simple way. The invention of the said type is distinguished by the fact that an auxiliary strut is jointedly arranged above the runner between umbrella pole and at least one roof rod and that the runner is provided with a locking device, by which said runner can be arrested in its upper position and the umbrella roof can be tensioned.
Such a design and configuration of the large umbrella achieves the effect that the large umbrella can be opened easily and that at the same time the possibility exists of tensioning the umbrella roof on the large umbrella in such a way that the umbrella overall is resistant to wind and storms. This is obtained by use of simple means, which likewise can be actuated by hand, without more or less complicated and expensive gear mechanisms having to be used. The large umbrella or the stand umbrella remains relatively light in weight, so that it can be transported by one person. The locking device is located on the stand umbrella approximately at chest height of the operating person, so that the device remains on the one hand well observed and on the other hand, by Virtue of the appropriate height, easily operable. The locking device itself is of a simple type and consequently inexpensive. In particular, the guarantee is provided that the umbrella roof can be tensioned extremely tautly, which is necessary in the case of an all-weather umbrella, by simple means which can be operated by hand.
For the locking device, a clamping lever closure is provided. On this there is a fixedly arranged abutment as well as a clamping element engaging together with the abutment.
The abutment is advantageously located on the stand tube. The fastening of the same expediently takes place by means of a holding arm, which is downwardly disposed. The holder arm [sic] is preferably fastened above the runner displacement path on the stand tube and is guided through a bore, a slit or the like on the runner.
Furthermore, to facilitate handling for the opening and closing operation of the umbrella, the runner is provided with an extension, which is designe
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patent: 1037060 (1912-08-01), Schonert
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patent: 1444017 (1923-02-01), Waschek
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patent: 2775976 (1957-01-01), Cavanaugh et al.
patent: 2775977 (1957-01-01), Haupt
patent: 4011881 (1977-03-01), Becher
patent: 4610262 (1986-09-01), Broyer et al.
patent: 4685482 (1987-08-01), Yung
Becher Textil-und Stahlbau
Friedman Carl D.
Wood Wynn E.
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