The present invention relates generally to improvement in umbrella construction and, more specifically it relates to a non flip umbrella.
Commonly available umbrella used as a protection against the weather consists of a fabric canopy that is fastened to a skeletal frame with pivotally hinged ribs radiating from a center pole or handle. A movable member defined by a sliding catch pivotally supports the braces of the ribs. The umbrella has a circular convex shape when open, and can be opened by sliding up or folded by sliding down said sliding catch.
The aforementioned conventional umbrella, though wideLy accepted satisfactorily by the end-user still encounters one pronounced defect. It has been observed that the fabric canopy is sustained in open or extended position merely by the force of the braces which bear on their ends to the sliding catch and at their outer ends against the respective ribs to which they are connected. Said braces and ribs cooperatively form a linkage-like support for the whole structure. Said linkage-like support is usually subjected by the lateral pressure of the weather which is always exerted against the outer edges of the fabric canopy. During windy weather condition (e.g. typhoon/storm), the fabric canopy together with the supporting ribs tends to flip-over or collapse over when a gale of wind or continuous strong wind blows through the inside of said umbrella thereby totally incapacitating the umbrella giving inconvenience to its user.
DE-C-819893 discloses an umbrella with a guy assembly to prevent the canopy from flipping over.
In view of the defects found in the utilization of the existing umbrellas, there is therefore a need to positively secure and/or reinforce the ribs and braces of the umbrella so as to preclude the tendency of collapsing over thereof. Accordingly, the present invention contemplates to improve the guy assembly which could appreciably secure rigidly the ribs of the umbrella and thereby making it capable of positively sustaining the ribs in correct position without flipping over.
Another object of the invention is to provide a non flip umbrella wherein the guy assembly incorporated thereof has an inner end connected to said sliding catch and the outer end connected to said respective ribs.
A further object of the invention is to provide a non flip umbrella which, is so simple in structure, permits facile assembly and is reliable.
The invention provides an umbrella having the features of claim 1.
The objects of the invention, and its characteristic features and advantages will be further understood in the following detailed description taken in conjunction with the appended drawings.
Referring now in detail to the several views of the drawings wherein like reference numerals designate the same parts throughout, there is illustrated a non flip umbrella which is generally designated by the reference numeral 10. This umbrella 10 conventionally comprises an elongated center pole 11 provided with an apex in the form of a hub 12 encompassingly fixed at the upper end of said center pole 11 and a series of ribs 13 hingedly connected to said hub 12 and spacedly radiating from said center pole 11. Movably secured on said center pole 11 and proximately below the hub 12 is the sliding catch generally designated by the reference numeral 14. As in a conventional structure, the sliding catch 14 defines a cylindrical sleeve 15 having at the upper terminal end thereof an integral channeled hub 16, said hub 16 being provided with a series of radially spaced slits 17. Disposed within said channeled hub 16 is a ring 18. Hingedly connected on said ring 18 and passing through said slits 17 is the inner end of a series of braces 19, their outer ends being hingedly connected to the respective ribs 13. The steadying force of these braces 19 supports the respective ribs 13 in erect and steady position when the umbrella is opened.
The improvement herein proposed which is absent in existing umbrella construction is directed solely to the reinforcing guy assembly which is generally designated by the reference numeral 20. As best illustrated in Figs. 1 to 3, this guy assembly 20 which is adapted to be connected between ribs 13 and the sliding catch 14 essentially consists of a series of elongated reinforcing strings 21, and a series of complemental suspender means 22, said suspender means 22 being extended between the reinforcing strings 21 and the ribs 13. While nylon cord material is preferred, as reinforcing string 21 other strong material such as wire string could suffice. Each of said reinforcing strings 21 having a length of between 30 and 114 cm (12 and 45 inches) radiates spacedly from said sliding catch 15, their inner ends 23 being connected to the ring 18 which is within the confines of the channeled hub 16, while the outer end 24 is secured to the eyelet 25 of the respective ribs 13 it is also possible to secure said outer end 24 to the outer end of said braces 19. Secured also on this eyelet 25 is the outer ends of the fabric canopy C.
Each of the suspenders 22 is held in position by a pair of upper and lower rings 26 and 26a or other suitable conventional connecting means, the upper ring 26 is connected to the respective ribs 13 while the lower ring 26a is secured to the reinforcing strings 21. These suspenders 22 are adapted as auxiliary supports so that the reinforcing strings 21 will not sway out of place and at the same time prevent the reinforcing strings 21 from drooping out of the umbrella as 33 when said umbrella is folded as shown in Fig. 6.
Fig. 4 shows an alternative embodiment of the non flip umbrella showing the guy assembly on a different construction. As illustrated, the embodied assembly is generally designated by the reference numeral 27. This assembly 27 now consists of a circular ring member 28 which is encompassingly secured to the sleeve 15 of said sliding catch 14 of the umbrella. Said ring member 28 defines a series of radially disposed holes 32 where elongated reinforcing strings 29 radiate therefrom towards the outer ends of the ribs 13. Said reinforcing strings 29 having a length of no less than 30 cm (12 inches) and no more that 114 cm (45 inches) have an inner end 30 being secured on said strength of the conventional materials used in the essential components of the herein improved umbrella.