FR2752512A1 - Parasol or umbrella fixed to eccentric post - Google Patents

Abstract

The cover (1) of the parasol is on a frame formed of ribs (7) that are articulated on a central upper nut (5). This is on a hollow tube (6) fixed to an eccentric post by a pole (14). Counter-ribs (9) are articulated on a lower central nut (8). The lower nut has a vertical rod (10) whose diameter is less than the diameter of the tube and penetrates into the tube. The nut is suspended from a cord (11) which passes through the tube and posts and is rolled on a drum by turning a handle (12) on the eccentric post.

Description

UMBRELLA OR UMBRELLA MAST
The present invention relates to an umbrella or parasol with an eccentric mast consisting of a cover mounted on a frame composed of whales articulated on a central upper nut and a central lower nut.

 The present invention more specifically relates to an umbrella or parasol of the type in which the cover is mounted at the end of a bracket itself fixed to an eccentric mast.

 Such umbrellas or parasols are known.

 French Patent No. 1,033,163 describes such an umbrella or parasol with manual opening.

 Patent application DE-A- 3,339,163 describes an umbrella or parasol, the stem of which is articulated on the vertical mast and on a connecting rod so that the ring hangs from said stem. goes from a closed position against the mast to an open position in which the stem is substantially horizontal.

The upper nut slides on a section of median and vertical mast and the lower nut, which carries the counter-whales is pierced in its center. The lower nut threads on the end of the mast portion and is locked there by a transverse pin. The movement is carried out by lifting the assembly by means of a cord with pulley of return on the lower nut and on the section of axial nlâí.

 This arrangement requires manual guidance of the lower nut towards the mast section, in particular when the parasol is not stable and the structure can be decorated under the effect of the yent for example. In addition, gripping the cord which can be caught in the folds of the blanket or in the whales is difficult.

 Patent application PCT / FR82 / () 3,538 describes a parasol with a support or offset pole in which an upper nut carrying the whales is carried by a section of inat which threads and hangs in a lower nut carrying the counter whales. The opening control is manual and poses the same problems as the previous device in terms of positioning the lower nut relative to the mit section.

 Patent application EP-A-387 96t describes a parasol whose inat is offset. On it, slide a bracket between a vertical position and a horizontal position. During this movement, controlled by a cord mounted on a crank carried by the mast, a cord fixed to a point on the mast and passing through the stem exerts a traction which causes a rod carrying the> lower nut to slide in a portion of mast carrying the upper nut.

This system is particularly complex, susceptible to blocking and cumbersome.

 Patent application FR-A-2 699 215 describes a CC type umbrella with vertical pole and eccentric, articulated pole, on which is movable a cllariot controlled by a cord. The carriage carries the cover and the frame with upper nut and lower nut which at the end of the stroke of the cord, when the carriage is at the end of the bracket, is raised to an axial piece against which it locks in position. In this device, the lower nut is not guided towards the support part.

 The object of the present invention is to produce a parasol or umbrella with an offset pole which is of a simpler design than those of the prior art so that its assembly is easy. which makes it possible to market it in spare parts.

 Another object of the present invention is to produce an umbrella or parasol with an offset pole in which effective guidance is obtained for the lower nut. which avoids having to resort to manual guidance and which allows the user to control opening and closing from the eccentric mast without having to slip under the folded cover.

 To this end, the umbrella or parasol according to the invention, consisting of a cover mounted on a frame composed of whales and counter-whales articulated respectively on an upper central nut and on a lower central nut and articulated between them, the armalurc being fixed at the end of a bracket carried by an eccentric mast is essentially characterized in that - the upper nut is mounted on a section of axial mast, or hollow support tube fixed to the bracket, - the lower nut carries an axial vertical rod centering, with a diameter less than or equal to the internal diameter of the support tube. said rod of the lower nut being free from the support tube in the closed position and penetrating therein during the parasol opening operation under the pull of a cord to which it is suspended and which passes through the support tube to the eccentric mast where it is wound on the drum of a winder rewinder system with crank operated by the user.

 According to another characteristic of the invention, the vertical centering rod of the lower nut is of ogival or conical shape tightened at its upper end to provide guidance in the support tube.

 According to yet another characteristic of the invention, the length of the support tube is such that the lower nut in the open position is blocked relative to its lower end.

 According to another characteristic of the invention, the upper and lower nuts each have an axial cylindrical bore, passing through, extended axially by the cylindrical bore passing through in the form of a sheath.

 According to another characteristic of the invention, each nut has several regularly spaced radial notches, each delimited by two parallel blanks, perpendicular to the equatorial plane of the nut and each receiving an axis of articulation of a whale or a counter whale this axis being parallel to the equatorial plane of the nut and perpendicular to each of the blanks of the notch, said axis by each of its terminal portions, being engaged in through bores made in the nut and opening into the blanks of the notch.

 According to another characteristic of the invention, the ogival or conical shape occupies the upper part of the centering rod and the latter comprises a lower part of cylindrical shape by which it is engaged in the bore passing through the lower nut and in the through bore of the sleeve form and said rod, by its lower part being fixed by radial screws to the form of sleeve.

 According to another characteristic of the invention, the sheath fondue of the lower nut is oriented towards the upper nut.

 According to another characteristic of the invention, the centering rod at the lower end has a collar by which it is brought into abutment against the peripheral zone of the lower orifice of the bore passing through the lower nut.

 According to another characteristic of the invention, the lower cross section of the upper part of the centering rod has a diameter equal to the internal diameter of the support tube and said upper part of the centering rod, by its lower end cross section. is connected to the lower part by a middle cylindrical portion of the same diameter as said terminal cross section, this middle cylindrical portion being intended to be engaged in slight forcing in the lower part of the support tube during the deployment movement of the frame and is connected to the lower part of the centering rod by a stop shoulder against which abuts the lower end of the support tube in the open movement movement of the umbrella or parasol.

 According to another characteristic of the invention. the middle part of the centering rod is positioned coaxially in the bore of the barrel sheath of the nut. and the diameter of the bore of the sleeve shape being equal to or greater than the external diameter of the support tube so that there is formed between said bore of the sleeve shape and said middle part an annular cross section interval, intended to receive when fitting the lower part of the support tube.

 According to another characteristic of the invention the tensile force of the cord in order to deploy the armature is exerted on the centering rod. the latter being suspended from the traction cord.

 According to another characteristic of the invention. the centering rod is hollow and has an internal chamber in which, by passing through a tra per hole, ersant produced in the summit zone of the centering rod, is engaged the end portion of the traction cord. which is fixed to a spherical stop element freely mounted in the chamber and having a diameter greater than that of the through hole.

 According to another characteristic of the invention, the spherical stop element is provided with a channel in which is engaged the end portion of the traction cord, this channel preferably being of width less than the thickness of the cord and of sinuous profile. to increase the adhesion of the bead in the stop element.

 According to yet another characteristic of the invention. the end of the support rod above the frame is fixed by a pressure or snap-in system in an upper angle connector fixed to the stem, said angle connector being formed of two tubular sections fixed to it one to the other and forming an angle between them, one of the two sections being vertical and the other inclined to the horizontal, said corner connector receiving a pulley with return groove on which the winding cord is partially wound .

 According to a first embodiment, the pressure or snap-in system is mounted in the upper part of the support tube and cooperates with through bores made in the vertical tube section of the upper corner connector.

 According to a second embodiment, the pressure or snap-in system is disposed in the lower part of a vertical tubular element integral with the vertical tubular section of the corner connector, the support tube being engaged on this vertical tubular element and comprising in part lower through holes, radial, intended to cooperate with the pressure or latching system.

 According to yet another characteristic of the invention, the bracket comprises the upper angle connection with the pulley, at least one intermediate tube threaded into said upper angle connection and a lower angle connection with pulley which is mounted on the vertical mast, the opening and / or iron bead crossing inside to the vertical tubular mast, said fittings and intermediate tubes.

 According to another characteristic of the invention. at least the upper corner connector receives a closure plug from the open end of the tubular section inclines to the horizontal, said closure plug being constituted by a wall in the form of a disc. constituting the closure element, and of a form of tubular sleeve connected to the wall in the form of a disc and by which it engages in the inclined tubular section. said form of tubular sleeve receiving symmetrically with respect to a diametral plane, two parallel walls spaced from one another to define a guide channel coming from either side of the rims of the pulley during setting place the plug and having opposite the internal bore of the vertical tube section an opening for passage of the pull cord. This arrangement prevents the cord from deviating from its pulley.

 Other advantages and characteristics of the invention appear on reading the following description of an embodiment of the invention given by way of non-limiting example and illustrated by the accompanying drawings in which - Figure 1 is a view of the parasol folded up with mast and gallows.

- Figure 2 is a view of the folded frame, - Figure 3 is a view of the parasol according to Figure 1 in the open position.

- Figure 4 is a view of the junction of the umbrella frame elements.

- Figure 5 is a view of the umbrella frame in the fully open position.

- Figure 6 is a view of the junction of the upper corner connector and the support tube of the ring, - Figure 7 is a view of the junction of the lower corner connector. of the gallows and the mast.

- Figure 8 is a half-section view of a lower nut with centering rod engaged in the support tube, - Figure 9 is a sectional view of another embodiment of the taxation of the frame by its support tube, at the upper corner connection.

- Figure 10 is a cross section of a tubular element on which the support tube of the armature is engaged, - Figure 11 is a top view of the upper nut, - Figure 12 is a top view of the lower nut, - Figure 13 shows another embodiment of the mounting of the pull cord in the centering rod.

 As shown, the parasol or umbrella according to the invention comprises (FIG. 1) a waterproof cover 1, for example of canvas or other suitable material, mounted as a fixing on a foldable and deployable frame. hanged on an inclined bracket 2, fixed to the end of a level 3 offset from the center of the frame. The tubat is blocked in a base 4.

 The frame shown folded in Figure 2 and open in Figure 3, includes an upper nut 5 fixed in position on a section of axial central mast or hollow support tube 6, preferably cylindrical., A lower nut 8, ribs 7 of equal lengths articulated to the upper nut 5, and of the counterbones 9, of equal lengths. articulated on the one hand with the ribs 7 and on the other hand with the lower nut 8 the latter comprising or receiving in blocking a part tO on which an axial tensile force on the frame is exerted by a cord in order to bring the 'armature and eou'erture it carries from a folded position to a deplored position.

 The support tube 6 has an upper portion 6a and a lower portion 6b relative to the nut.

 The upper portion 6a is used for fixing to the bracket 2 cormnc explained below. The lower portion 6b collaborates in the opening and blocking cn opening of the ariuatuoe.

 At the upper nut 5 are articulated radial whales 7 of the same length. The nut 5 has an axial cylindrical bore, passing through, 51 by which it is positioned on the hollow support tube 6 and this. at a distance from each of the two ends of this tube. The trelx crsant bore St L of the nut 5 is axially extended by the cylindrical bore passing through a form of roll-l-cau 52 which the nut presents, and by which it is fixed both in translation and in rotation to the support tube 6, the latter being engaged in this form of sheath. The internal diameters of the bores of the nut and of the sleeve shape are equal and correspond substantially to the external diameter of the support tube 6. The upper nut 5 is positioned so that the sleeve shape 52 extends towards the lower nut 8. According to the preferred embodiment, the nut 5 is fixed to the support tube 6 by two diametric screws engaged in radial through holes drilled in the tubular wall of the sleeve shape 52 and in through radial threads formed in the wall of the support tube 6. The nut 5 has a series of regularly spaced radial notches 53 in which the whales are mounted in articulation 7. Each notch 53 is delimited by two parallel blanks 54, perpendicular to the equatorial plane of the nut, and receives an axis of joint 55 of the corresponding whale 7. This articulation axis 55 is parallel to the equatorial plane of the nut 5 and perpendicular to each of the blanks 54 of the notch 53. This axis 55, through each of its terminal portions, is engaged in through bores made in the nut 5 and emerging in the blanks 54 of the notch 53.

 According to a preferred embodiment, the nut 5 consists of half-shells joined to each other according to the equatorial plane.

 Each whale has a piece of end piece for a uc of a through hole in which is intended to be engaged the horizontal axis of articulation 55.

 The frame also comprises a lower nut 8 to which are articulated radial counterbones 9 themselves articulated to the whales 7. The lower nut has a structure identical to the upper nut which leads to a simplification of the realization of the frame. Thus this nut has an axial through bore 81 extended by the through bore of a sleeve shape 82.

The nut 8 has a series of notches 83. regularly spaced. each delimited by two blanks 84 and each equipped with an axis 85 to which the corresponding counter-whale is articulated. The lower nut 8, as described, is positioned in the frame so that its sleeve piece 82 is oriented towards the upper nut 5.

 The lower nut 8 is independent of the upper nut 5. The lower nut 8 has or receives in attachment the part 10 advantageously formed by a vertical centering rod 10 axial, upper. protruding towards the upper nut 5 and towards the portion of 6b dc support tube. This rod by at least its upper portion 10a, that is to say that located above the nut is intended to penetrate during the opening movement of the umbrella in the lower terminal portion 6b of the support tube which ensures in position ou ou erture of the umbrella immobilization of the two nuts l relative to the other on the one hand and relative to the support tube on the other hand and their coaxility. This arrangement, in the open position. gives the frame excellent rigidity and consequently greater resistance to deformation under the effect of external stresses generated for example by gusts of wind and others.

 To allow the engagement of the upper part of the rod in the support tube despite the presence of a misalignment of the two nuts relative to each other. created for example by the accidental knocking of one or more whales or counter whales or by a non-uniform deployment of these. the upper part 10a of the rod 10 has a straight section progressively tapering from a lower terminal section located at the level of the nut 8. towards the upper extremity of the rod 10. Preferably the upper part will present an ogival flour or else a conical shape and its height will be around 10 centimeters. This arrangement makes it possible to effortlessly make up for an offset equal to the value of the radius of the bore of the tube portion 6b.

 The height of the rod 10 will preferably be less than the length of the portion 6b of the support tube.

 In the preferred embodiment, the rod 10 is engaged by its cylindrical lower part 10b in the through bores of the nut 8 and the sheath shape 82 and is fixed by radial screws to the sheath shape. In fact, each radial screw is engaged in a through hole made in the sheath and in a radial thread made in the lower part 10b of the rod 10.

At the lower end. the rod 10 has a collar 10c by which it is brought into abutment against the peripheral zone of the lower orifice of the bore passing through the nut 8. The diameter of the lower portion of the rod 10 is substantially equal to the diameter of the through the nut to make an adjustment with reduced functional clearance. The lower cross section of the upper part of the rod 10 has a diameter equal to the internal diameter of the support tube 6. Above this terminal section, the straight sections that the upper part 10a of the rod 10 have, have smaller diameters to the internal diameter of the tube. By its lower terminal cross section, the upper part 10a is connected to the lower part 10b by a cylindrical portion 10d middle of the same diameter as said terminal cross section. During the opening movement, the middle cylindrical portion 10d engages in slight forcing in the lower part 6b of the support tube. To limit the driving movement of the part 10 into the tube 6, a stop shoulder is provided, formed between the median cylindrical portion.l0d and the lower part 10b. Against this shoulder, abuts the lower end of the support tube 6 at the end of the movement of opening the umbrella or parasol.

 It should be noted that the middle part of the rod 10 is largely positioned in the bore of the sheath shape 82 and this at a distance from the latter so as to provide with said bore an intenial of annular cross section, intended to receive in the form of the lower part of the portion 6b of the support tube 6. By this arrangement. the lower nut is now perfectly held on the support tube in the open position of the frame.

 The rod 10 is suspended at its end from the traction cord It which passes through the support tube 6 then through the bracket 2 and the mast to a control member 12 fixed to the mast 3. This control member consists of 'a winder-unwinder system to handle it, comprising a drum maneuvered by the crank on which the cord II is wound. According to a first embodiment, the upper part 10a of the rod 10 is equipped with a cord fixing ring. According to an alternative embodiment, the rod 10 is hollow and has an internal chamber closed in the lower part of the rod by a removable plug 25. This internal chamber has a cylindrical portion corresponding to the lower part of the rod 10 and to the middle part and a conical or ogival portion corresponding to the conical or ogival upper part of the rod 10. The upper part lOa of the rod has at the level of the summit zone a through bore through which is engaged in the internal chamber of the rod , the terminal portion of the traction cord II. which is fixed to a spherical stop element 26 freely mounted in the chamber and having a diameter greater than that of the through hole for introducing the cord 11 into the internal chamber. This stop element 26 is provided with a channel in which the end portion of the pull cord is engaged. this channel preferably being of width less than the thickness of the bead and of sinuous profile in order to increase the adhesion of the bead in the stop element 26. A retention node will be formed on the bead 11 and will come into abutment against the 'stop element 26 to prevent the cord from sliding in the channel under the effect of the tensile force to which it is subjected during the deployment of the frame.

 In the internal chamber, preferably in the cylindrical part of the latter are formed four radial stops 27, regularly distributed, projecting from the cylindrical face of said part, against which is pressed the spherical stop element 26 under the effect of the tensile force exerted by the cord 11. The purpose of this arrangement is to maintain the stop element 26 in the cylindrical part of the internal chamber of the rod 10.

 According to an alternative embodiment as illustrated in FIG. 13, the rod is hollow and in its upper part 10a is formed, from the apex passing through. a longitudinal slot 10e opening into a circular through bore 10f made in said part. The diameter of this bore is slightly greater than the diameter of the spherical stop element 26. while the width of the slot is slightly less than the diameter of the cord 11. This arrangement allows the rapid insertion of the terminal part of the cord it and of the stop element 26 in the part 10a of the centering rod. The width of the slot, although less than the diameter of the cord, allows, however, by force, the introduction of the latter into part 10a. As can be seen, this slot width arrangement is opposed to the unexpected extraction of the cord. This result is improved by forming a not entirely rectilinear slot, developing locally. as can be seen in figure 13. according to one or more curves. Under the effect of the traction exerted by the cord 11 the stop element 26 comes to block against the internal conical face of the part 10a.

 According to yet another alternative embodiment, not shown. the upper part 10a is in two parts linked to each other by screwing. To this end, the top part of the upper part 10a will have a threaded end piece intended to be screwed into a threaded end piece made in the lower part of the iota part.

 The bracket 2 comprises an upper corner connector 13, at least one intermediate tube 14 and a lower corner connector 15.

 The upper corner connector 13 consists of two sections of tubes 13a, 13b, fixed by welding to each other and forming an angle between them. The internal bores of each of these two tube sections are in relation to each other and their longitudinal axes of symmetry are intersecting.

By the tubular section 13b, inclined to the horizontal, the corner connector 13 is secured to the inter-median tube 14. This intermediate tube by the corresponding end is engaged around the section 13b and is fixed to the latter by an engaged screw in a radial through hole which it comprises and in a radial through thread made in the tube section 13b.

The vertical section 13a receives the upper portion 6a of the support tube and for this purpose the lower portion 6b of the support tube 6 which is engaged on the tubular element 28 and always comes, through its upper part, to fit into the section tubular 13a of the corner connector 13. In the preferred fondue embodiment. the tubular element 28. axially aligned with the tubular portion 13a, receives a fixing in the upper part. a ring constituting a shim by which it is engaged in the tubular section I 3a. The outer diameter of the ring is slightly smaller than the inner diameter of the tubular section 13a so as to make an adjustment with a reduced functional clearance. In addition, the tubular element is fixed to the tubular section 13a by radial screws engaged in transverse holes drilled in the tubular section 13a and in threads made in the ring.

 The tubular element 28 has two diametrically opposite longitudinal grooves 28a, for passage of the projecting end of the radial screws for fixing the upper nut 5 to the support tube 6.

 Advantageously, one or more spacers for guiding the hook can be mounted in the tubular element.

 At the junction of the two sections of tubes 13a. 13b making Ic corner connection and internally, is mounted on a transverse axis integral with the section 13b a pulley with return groove 18 on which is partially wound the cord 11. This grooved pulley has a mo! Cu by which it is mounted in rotation on the transverse axis, the latter being mounted in the section I 3b in fixing in two through holes that this section 13b comprises.

 In the preferred embodiment, the open end of the tubular section 13b receives a closure plug 29. This closure plug consists of a wall 29a in the form of a disc, constituting the closure element. and a form of tubular sleeve 30 connected to the wall in the form of a disc, and by which it engages in forcing in the tubular section-c I 3b. In the form of tubular sleeve 30 are arranged symmetrically with respect to a diametrical plane, two parallel walls 3 1 spaced from each other by a value slightly greater by a few tenths of a millimeter than the width of the pulley measured at the level of its rims, this value being far less than the thickness or diameter of the bead. These two walls 31 are connected on the one hand to the wall 19a and on the other hand to the form of tubular sleeve 30. These two parallel walls define a guide channel and are intended to be positioned on either side of the rims pulley when fitting the plug. Opposite the internal bore of the vertical tube section 13a. Ic guide channel has an opening for passage of the cord 11, formed by a rectangular notch. formed in the wall of the sleeve shape 30, parallel to the longitudinal axis of said shape and from the free end of the latter. Opposite this notch, the sleeve shape 30 has a second rectangular notch. this second notch also being parallel to the longitudinal axis of said sleeve shape and being formed in the wall of said shape always from the free end of the latter. Preferably the width of each of these two notches is equal to the width of the channel. These notches each constituting a width greater than the width dc of the pulley measured at the rims of the latter avoids any contact of the sleeve shape with the pulley. The walls 31 each have a clearance notch coming to be positioned around the hub of the pulley 18 when the plug 29 is put in place and the form of tubular sleeve 30 also has two opposite clearance notches which are arranged around the transverse axis during the fitting of the plug 29. The guide channel formed in the form of a sleeve 30 by the walls 31 has the purpose of preventing the cord from coming off the pulley 18. the functional play. a few tenths of a millimeter, formed between the walls 31 and the rims of the pulley being too small to allow the cngagement of the cord between the walls 31 and the rims. In addition, the two walls 31 maintain the pulley 18 in the median plane of the tubular section 13b of the connector 13.

 The corner connector 15 with pulley with internal groove 19 on which the cord II is partially wound. consists of two sections of tubes 15a, lzb fixed by welding to each other and forming an angle between them. The internal bores of each of these two tubular sections 15a, lsb are in relation to each other and their longitudinal axes of symmetry are intersecting. The vertical tubular section 15a receives the mast 3, engages in the latter and is fixed there by a screw engaged in a radial through hole that the mast comprises and in a radial through thread which it comprises. The tubular section 15b, inclined to the horizontal, receives the intermediate tube 11. This tube by the corresponding end is engaged around the section I Sb and is fixed to the latter by a screw engaged in a radial through bore that it comprises and in a radial through thread made in the tube section 15b. The pulley 19 is mounted at the junction of the two sections of tubes 15a and I 5b. cu rotation by a hub which it comprises on a transverse axis integral with the section lzb.

 To prevent the cord from coming off the pulley 19, the same arrangement as that previously described could be adopted. Thus, at the junction with the tube section 15a, the tube section 15b will have an open end into which a closure plug 29 will be engaged in accordance with that which has just been described.

 The mast 3 is threaded into a base 4 consisting of a vertical tube 20. with screw for locking the mast on a plate 21.

 The plate 21 is fixed by screws on two crosspieces 22, of the base 4. arranged in a cross. Each cross member is provided with horizontal wings 23 bearing on the ground on which the counterweight slabs 24 are supported.

 It will be appreciated that the mounting of the parasol or umbrella according to the invention is easy.

 Advantageously as shown in Figure 1 the mast 3 comprises ut intermediate section 3c removable between the upper part 3a and the lower part 3b. This stretch. smaller in diameter than the other two, slides into them. On this short intermediate section is mounted the unwinding reel system 12 of the cord which consists of a rotary drum with crank and non-return ratchet system.

This arrangement facilitates mounting of the cord on the axis of the system 12.

 Alternatively, the mit 3 is in one piece.

Claims (26)

CLAIMS:  1 / Umbrella or parasol consisting of a cover (I) mounted on a frame composed of whales (7) and counter-whales (9) articulated respectively on an upper central nut (5) for the first and on a lower central nut ( 8) for the second and hinged together, the armature being fixed at the end of a bracket (2) carried by an eccentric mast (3) characterized in that the upper nut (5) is mounted on an axial mast section (6) or sky support tube fixed to the bracket, that the lower nut (8) carries a vertical centering rod (10) axial of diameter less than or equal to the internal diameter of the support tube (6). said lower nut rod being free from the support tube in the closed position and penetrating therein during the parasol opening operation under the pull of a cord (II) to which it is suspended and which passes through the support tube up to to the eccentric mast (i) where it is wound on the drum of a winder unwinding system with crank (12) operated by the user.  2 / Umbrella or parasol according to claim 1 characterized in that the length of the support tube (6) is such that the lower nut (8) in the open position is blocked relative to its lower end. the ogival rod (10) having entered the support tube.  3 / Umbrella or parasol according to any one of the preceding claims, characterized in that the upper (5) and lower (8) nuts each have a cylindrical, axial, through bore (51). (81) extended axially by the cylindrical through bore of a sleeve standard (52), (82).  4 / Umbrella or parasol according to any one of the preceding claims. characterized in that each nut (S), (8) has several radial notches (53). (83) regularly spaced, each delimited by two parallel blanks (54). (84). perpendicular to the equatorial plane of the nut (S), (8) and each receiving an axis of articulation (S S). (8.i) of a whale (7) or of a counter whale (9), this axis (55), (85) being parallel to the equatorial plane of the nut (5). (8) and perpendicular to each of the blanks (54), (84) of the notch (53), (83), this said axis (5 S), (85) by each of its terminal portions, being engaged in through holes drilled in the nut (5). (8) and opening into the blanks (54), (84) of the notch (53), (83).  5 / Umbrella or parasol according to any one of the preceding claims, characterized in that the vertical centering rod (10) of the lower nut is of ogival or conical shape tightened at its upper end to provide guidance in the support tube (6).  6 / An umbrella or parasol according to claim 4 and claim 5. characterized in that the ogival or conical shape occupies the upper part (lova) of the rod (I t)) for centering and the latter comprises a lower part (lOb) of cylindrical shape by which it is engaged in the through bore (81) of the lower nut (8) and in the through bore of the sleeve shape (82), said rod (10), by its lower part being fixed by radial screws in the form of a sheath (82).  7 / Umbrella or parasol according to claim 6 characterized in that the form of sheath (82) of the lower nut (8) is oriented towards the upper nut (S).  8 / Umbrella or parasol according to claim 7, characterized in that the rod 10 at the lower end has a collar (10c) by which it is brought into abutment against the peripheral zone of the lower orifice of the through bore (ground) of the lower nut (8).  9 / An umbrella or parasol according to claim 7 or claim 8. characterized in that the lower cross section of the upper part (10a) of the centering rod (10) has a diameter equal to the internal diameter of the support tube (6) and that said upper part (I () a) of the centering rod, by its lower end cross section, is connected to the lower part (10b) by a middle cylindrical portion (10d) of the same diameter as said lower end cross section . this median cylindrical portion (lord) being intended to be engaged in slight forcing in the lower part (6b) of the support tube (6) during the deployment movement of the frame and is connected to the lower part of the centering rod by a stop shoulder against which abuts the lower end of the support tube (6) at the end of the opening movement of the frame.  10 / Umbrella or parasol according to claim 9 characterized in that, the middle part (10d) of the centering rod (10) is positioned coaxially in the bore of the sheath shape (82) of the nut (8 ), and that the diameter of the bore of the sleeve form (82) is equal to or greater than the external diameter of the support tube (6) so that is formed between said bore of the sleeve form (82) and said middle part (10d) an annular cross section interval. intended to receive in the form of a socket the lower part of the support tube (6).  11 / Umbrella or parasol according to any one of the preceding revendicatious, characterized in that the pulling force of the cord (11) in order to deploy the frame is exerted on the centering rod (10), the latter being suspended to the pull cord (11).  12 / Umbrella or parasol according to claim 11. characterized in that the centering rod (10) is hollow and has an internal chamber in which. by passing through a through hole made in the top zone of the centering rod. is engaged the end portion of the pull cord (11), which is fixed to a spherical stop element (26) freely mounted in the chamber and having a diameter greater than that of the through hole.  13 / Umbrella or parasol according to claim 12. characterized in that the spherical stop element (26) is provided with a channel in which is engaged the end portion of the pull cord (11), this channel preferably being of width less than the thickness of the cord cl sinuous profile to increase the adhesion of the cord (11) in the stop member (26).  14 / Umbrella or parasol according to claim 12 or claimE13, characterized in that in the internal chamber, are formed four radial stops (27). protrusions against which is pressed the spherical stop element (26) under the effect of the tensile force exerted by the cord (11).  15 / Umbrella or parasol according to any one of the preceding claims, characterized in that the end of the support tube (6) above the frame is fixed by a pressure or snap-in system in an upper corner connector ( 13) of the stem (2). said corner connector being formed of two tubular sections (13a), (13b) fixed to each other and forming an angle between them, one of the two sections (13a) being vertical and the other (13b) inclined on the horizontal. said corner connector receiving a deflected pulley (18) on which the traction cord (11) is partially wound.  16 / Umbrella or parasol according to claim 15. characterized in that the pressure or snap-in system is mounted in the upper part of the support tube (6) and cooperates with piercing holes made in the vertical tube section (ira) of the upper corner connector (13).  17 / Umbrella or parasol according to claim 15. characterized in that is disposed in the lower part of a vertical tubular element (28) integral with the vertical tubular section (13a) of the corner connector, and having a diameter slightly less than the diameter internal of the support tube 6, said support tube (6) being engaged on this vertical tubular element (28) and comprising in the lower part through holes. radials intended to cooperate with the pressure or snap-in system.  18 / An umbrella or parasol according to claim 17, characterized in that the tubular element (28), axially aligned with the tubular portion (13a). receives in fixing in the upper part, a ring constituting a shim by which it is engaged in the tubular section (I 3a).  19 / Umbrella or parasol according to claim 17 or claim 18. characterized in that the tubular element (28) has two longitudinal grooves (28a) diametrically opposite, for passage of the projecting end of the radial screws for fixing the nut supercurc (5) to the support tube (6).  20 / Umbrella or parasol according to any one of claims 15 to 19, characterized in that the bracket (2) comprises an upper corner connection (13) with pulley (I X). at least one intermediate tube (14) threaded into said upper corner connector (13) and a lower corner connector (li) with pulley (19) .- which is mounted on the vertical mast (3), the cord ( 11) opening and / or closing through to the vertical tubular mast (3) said upper (13) and lower (15) corner fittings and the intermediate tube (14).  21 / Umbrella or parasol according to claim 20 characterized ell that the lower corner connector (15) consists of two sections of tubes (15a) (15b). fixed the ui to the other and forming an angle between them, one of the two sections (15a) being vertical and receiving the mit (3) and the other (15b) being inclined on the horizontal and receiving the intermediate tube ( 14).  22 / Umbrella or parasol according to claim 15 or claim 21 characterized in that at least the upper corner connector (13) receives a closure plug (29) from the open end of the tubular section (13b) inclined on the horizontal, said closure plug (29) being constituted by a wall (29a) in the form of a disc, constituting the closure element. and a form of tubular sleeve (30) connected to the wall in the form of a disc (29a) and by which it sits in the inclined tubular section (13b). said form of tubular sleeve (30) receiving in a manner symmetrical with respect to a diametrical plane. two parallel walls (31) spaced from each other to define a guide channel coming from either side of the rims of the pulley (18) during the fitting of the plug (29) and having opposite the internal bore of the vertical tube section (13a) an oux eríure passage of the traction cord, the guide channel preventing the cord from coming off the pulley (I 8).  23 / Umbrella or parasol according to any one of the preceding claims characterized in that the mast (3) is slidably mounted with locking in a vertical tube (2 ()) carried by a base consisting of two cross crosses (22).  24 / An umbrella or parasol according to claim 6 characterized in that the crossbars of the cross base are provided with horizontal wings (23) bearing on the ground receiving slabs forming a counterweight.  25 / Umbrella or parasol according to any one of the preceding claims, characterized in that the system (12) winder unwinder of the cord (II) is mounted on an intermediate section (3c) of the removable mast, mounted between two sections (3a) and (3b)  26 / Umbrella or parasol according to claim 12 or claim 13. characterized in that in the upper part (10a) of the rod (10) is formed, from the aperture through the summit. a longitudinal slot (10e) opening into a circular through bore (I 0f) made in said part through which are introduced. in the part (toua) and the cord and the stop element (26), the diameter of the bore (10f) being slightly greater than the diameter of the spherical stop element (26). while the width of the slot is slightly less than the diameter of the cord (11), to oppose the unexpected extraction of the cord.