FR2841750A1 - Umbrella or sunshade mechanism, has automatically closing mechanism which closes the umbrella if it is overturned by wind - Google Patents

Abstract

The sunshade (1) comprises an automatic closing mechanism (15) should it fall over, this mechanism comprising an elongate sliding element (16,36) where one part protrudes above the corolla (5), this part being able to meet the ground should the parasol fall over and being able to result in the sliding of the elongate element, whereupon the releasable member (8,10,30,31) for locking the sunshade in an open position can be released. The closing mechanism comprises an elastic recall unit (20) acting upon the elongate sliding element in such a way that the elongate element is maintained in the sliding position where it does not act upon the releasable locking member.

Description

UMBRELLA WITH LOCKING RING

AUTOMATIC SECURITY

  FIELD OF APPLICATION OF THE INVENTION

  The subject of the present invention is a ring-locked parasol, of the molded ball-type parasol type or another type of parasol which closes automatically when it is

overturned by the wind.

  The danger posed by high wind parasols, which are stuck in the ground, or badly fixed, is well known. Under the effect of the wind, the parasols fly away and it happens

  their stems frequently cause serious injury, even death.

DESCRIPTION OF THE PRIOR ART

  The closest prior art is constituted by patent N0 99 10932, filed by one of the applicants, which describes a parasol with automatic safety closure, illustrated in FIG. 1 referenced as a whole P of the type of that comprising a rod 100 and one

  corolla 200 when the parasol is overturned by the wind.

  The prior art responds well to the need for security but essentially concerns the models of parasols whose locking is carried out from a rod

  elastic housed inside the tube.

  The present invention is a variant which relates to the parasol models.

  locked by a ring, of the molded ball-type parasol type or another type of parasol.

  In the first patent illustrated in FIG. 1, said mechanism 300 is actuated either by direct contact of one end of the latter with the ground at the time of overturning or by means of a flexible link, one end of which is linked to said mechanism and the other end fixed to the ground, the overturning of the parasol P stretching the link which thus actuates the mechanism 300. Still in this document, the closure device of the type consisting of a hollow rod 1 00, provided at one end with a core 11 0, on which are mounted pivoting the ribs 120 carrying a corolla 200, said ribs 120 being deployed by thrust ribs 130 carried by a slide 140 sliding along the hollow rod 100, the slide 140 being provided with a window 141 in which protrudes a boss 151 of a spring 150 located inside the rod 100, this boss ensuring the

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  blocking of the slide 140 and maintaining in the deployed position of the corolla 200 against

  the restoring force exerted by the whales 120.

  According to the prior art and as mentioned in the preamble, there is disposed inside the rod 100 of the parasol P a sliding tube 310 so as to protrude above the corolla 200, this sliding tube 310 coming when it is implemented according to arrow F by traction or compression, pushing in the blocking boss 151 which unlocks the slide 140 and causes the closure of the corolla 200 and therefore of the parasol P. The prior art, subject of a second patent N'0201091 illustrated in FIG. 2 brings a significant improvement ensuring the resetting of the automatic device object of the first

patent.

  According to the particularly advantageous embodiment illustrated in this FIG. 2, the device for closing the parasol P is further constituted by an elastic return and safety means, constituted by a coil spring 320 mounted coaxial with the sliding tube 310 above. of the corolla 200 while allowing it to slide along the arrow F. Thus, to the action generating the movement illustrated by the arrow F, the spring 320 opposes a stiffness which avoids unlocking by gravity, vibration, or shock not determined by the overturning of the parasol P. Nevertheless, when the force F is substantial and exceeds the stiffness of the spring 320, the tube 310 slides and unlocks the parasol P, by overturning and pressing on the mechanism 300 or overturning and traction by a flexible link not shown, falling and becoming harmless on a beach. The translation of the movable tube 310 induces the unlocking of the slide 140 by driving the boss 151 into the hollow rod 100 under the action of the movable tube 310. As soon as the force represented by the arrow F stops, the force of the spring 320 returns the movable tube 310 to its original position, which allows the boss 151 to protrude from the rod

100.

  The drawback of the device which is the subject of the first patent, although significantly improved by the second patent, is its limitation to the models of parasols fitted with a locking mechanism.

elastic rod.

DESCRIPTION OF THE INVENTION

  As well as this device gives full satisfaction to its users, the applicants have conducted research aimed at making it adaptable to other types

  parasol and in particular ring-locked parasols.

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  Figure 3 is a schematic sectional view of an embodiment of a

  closing device specific to parasols fitted with ring locking.

  According to the present invention, inside the upper tube 4 is disposed a sliding pin 1 passing through the core 2 so as to project above the corolla 3 and which is provided at its upper end with a stopper 5. In the lower part of the sliding axis 1 is fixed a rod 6 of the piano cord type, flexible extending through a central hole made in the ball 7 of inclination of the parasol. At the lower end of the rod 6 is fixed a slide 9, translating inside the ball-joint tube of the parasol 10. The slide is provided with an external lug 11 making a ramp inclined along a negative slope. The lug remains guided in the groove 12 cut in the ball joint tube 10, this groove passing through the locking lip 13. In this type of parasol concerned, the whale carrier slide 14 contains the locking which consists of an eccentric ring 21, supported laterally on the ball-bearing tube 10 by a spring 15. The pusher 16 makes it possible, as soon as it is actuated, to move the ring radially thus allowing it to be released from the

  circular lip 13 and consequently authorize the unlocking of the parasol.

  In the lower part of the axis 1 is arranged coaxially a coil spring 17 called

spring.

  At the lower end of the slide 9 hangs a flexible link 18 which emerges outward through the light 19 produced along a generatrix of the tube

lower 20.

  When under the effect of the wind, the parasol is overturned, the stop 5 strikes the ground and the sliding pin 1 sinks into the upper tube 4. The coil spring 17 is crushed. The rod 6 is pushed towards the inside of the tube 10, through the ball joint 7. The slide 9 translates and the lug 11 slides in the groove 12. Its ramp comes into contact with the internal part of the locking ring 21. This, as the longitudinal displacement of the lug, gradually disappears in a radial direction until it disengages completely from the circular lip 13. From this moment, the parasol is unlocked and closes automatically. When the parasol is closed, no tension is exerted on the slider 9. The coil spring 17 exerts via the rod a restoring force naturally returning the slider 9 to its starting position, thus authorizing the

  parasol lock when reopened.

  In another operating mode when under the effect of the wind the parasol tilts or is moved by it, the flexible link 18 previously moored to an object

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  heavy, tightens, pulls on the slider 9 and triggers in the same way as

  previously automatic closing.

  In a variant of the invention, the parasol can be equipped with any electronic detection system (low light, prohibitive or sudden inclination, shock, etc.) controlling, from any actuator, the translation of the slide 9 for

  unlock the parasol.

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Claims (4)

  1. Parasol with ring-type parasol locking ring or other type of parasol, with automatic safety closure essentially consisting at its base, of the upper tube 4, of the core 2, of the tilting ball of the parasol 7, of the tube ball holder of the parasol 10, of the whale carrier slide 14 containing the lock which consists of an eccentric ring 21, pressed laterally on the tube 10 by a spring 15, the pusher 16 allowing as soon as it is actuated to radially move the ring allowing thus to disengage it from the circular lip 13 and consequently authorize the unlocking of the parasol, of the lower tube 20, characterized by the assembly of a sliding pin 1 inside the upper tube 4, passing through the core 2 so as to protrude above the corolla, of a stop 5 situated at its upper end, of a rod 6 of the flexible piano cord type in the lower part of the sliding axis 1, extending through a central hole made in the ball joint 7 up to the slide 9 provided with an external lug 11, producing an inclined ramp along a negative slope, translating inside the ball-bearing tube 10, this lug remaining guided in the groove 12 cut in the ball joint tube 10 and passing through the locking lip 13, such that, when under the effect of the wind, the parasol is overturned, the stop 5 strikes the ground and the sliding pin 1 sinks into the upper tube 4 , the rod 6 is pushed back through the ball 7 and then towards the inside of the ball-bearing tube 10, the slide 9 translates, the lug 11 which slides in the groove 12 has its ramp which comes into contact with the internal part of the locking ring 21, the latter, as the longitudinal displacement of the lug, gradually disappears in a radial direction until it is completely disengaged from the circular lip 13, the   parasol being unlocked closes automatically.   2. Umbrella according to claim 1 characterized by the coil spring 17 arranged coaxially in the lower part of the axis 1, previously crushed during the insertion of the axis 1, generating through the rod 6, therefore that no external force is exerted on this axis 1, the return of the slide 9 to its starting position, authorizing   thus locking the parasol when it reopens. 6 2841750   3. Parasol according to claim 1, characterized by the presence of a flexible link 18 at the lower end of the slide 9, which protrudes outwards through the light 19, produced along a generatrix of the lower tube 20, such as when under the effect of the wind, the parasol tilts or is moved, the flexible link 18 previously connected to a heavy element, is tensioned then generates the translation of the slide 9 and triggers the automatic closing.   4. Parasol according to claim 1, in that it is equipped with any electronic detection system (weak light, prohibitive or sudden inclination, shock, ...) characterized in that said system, pilot, from of any actuator, the   translation of the slide 9 to unlock the parasol.