Stand-alone umbrella

Abstract

Stand-alone umbrella formed by a cover ( 1 ) which houses internal tubes ( 3 ) mounted inside the cover ( 1 ) on guides ( 2 ), being joined at its top end to an oscillating arm ( 4 ), the latter being in turn joined to a body ( 5 ) which has three sliders ( 19, 20 and 21 ) to which the rods ( 27, 28 and 29 ) are joined, the rear top slider ( 20 ) and the bottom slider ( 21 ) being joined to a cable ( 15 ) which is arranged along the length of the body ( 5 ) and the oscillating arm ( 4 ), and the ends of the cable ( 15 ) being joined to an arm slider ( 16 ) which is in turn joined to the middle plate ( 9 ) by means of tie-rods ( 17 ), the body ( 5 ) having at one of its ends rear rods ( 30 ) joined to a rotating element and at the other end a pulling device ( 8 ).

1 . Stand-alone umbrella, characterized in that is formed by a cover ( 1 ) which houses a structure with internal tubes ( 3 ) mounted on guides ( 2 ) inside the cover ( 1 ) and joined severally in its top end by a bottom plate ( 9 ) and in its middle part by a middle plate ( 11 ), being said internal tubes ( 3 ) joined at its top to an oscillating arm ( 4 ) by pins ( 6 ) and being joined the oscillating arm ( 4 ) by pin ( 7 ) to a body ( 5 ) formed by two guides, one upper and other lower, and also the umbrella is formed by a series of elements which transmit movement, consisting of two top sliders ( 19 , and  20 ) located in the upper guide of the body ( 5 ) and a bottom slider ( 21 ) located in the lower guide of the body ( 5 ) and that have attached the rods ( 27 ,  28 , and  29 ), being the rear top slider ( 20 ) and the bottom slider ( 21 ) connected to a cable ( 15 ) which is placed along the body ( 5 ) and of the oscillating arm ( 4 ) around of a series of pulleys ( 18 ,  24 ,  25 , and  26 ) located at a end of the oscillating arm ( 4 ), preferably in an arm guide ( 14 ) and at each end of the body ( 5 ) and being joined the ends of the cable ( 15 ) to an arm slider ( 16 ) which in turn is joined to the middle plate ( 11 ) by means of tie-rods ( 17 ), the body ( 5 ) having at the union end with the oscillating arm ( 4 ) the rear rods ( 30 ) joined to a rotating element, preferably teeth of the mobile gear ( 13 ) located in the rear part of the body ( 5 ) and which connect preferably to the teeth of the fixed gear ( 12 ) located in the oscillating arm ( 4 ), having also the body ( 5 ) a pulling device ( 8 ) in the front area. 
     
     
         2 . Stand-alone umbrella according to  claim 1 , characterized in that the rods ( 27 ) are joined to the rear top slider ( 20 ) through rotating points and to the body ( 5 ) through fixed rotating points, the rods ( 28 ) are joined to the bottom slider ( 21 ) through rotation points and to the body ( 5 ) through fixed rotating points and the rods ( 29 ) are joined to the top sliders ( 19 , and  20 ) through rotating points. 
     
     
         3 . Stand-alone umbrella according to  claim 1 , characterized in that between the oscillating arm ( 4 ) and the internal tubes ( 3 ) are placed misaligned springs ( 23 ) regarding to the rotation axis. 
     
     
         4 . Stand-alone umbrella according to  claim 1 , characterized in that the top sliders ( 19  and  20 ) are slipped over a stop-guide ( 22 ) fixed to the body ( 5 ) at its ends. 
     
     
         5 . Stand-alone umbrella according to  claim 2 , characterized in that the top sliders ( 19  and  20 ) are slipped over a stop-guide ( 22 ) fixed to the body ( 5 ) at its ends.