EP0756150A1 - Festverzierungskarussel - Google Patents

Festverzierungskarussel Download PDF

Info

Publication number
EP0756150A1
EP0756150A1 EP96420247A EP96420247A EP0756150A1 EP 0756150 A1 EP0756150 A1 EP 0756150A1 EP 96420247 A EP96420247 A EP 96420247A EP 96420247 A EP96420247 A EP 96420247A EP 0756150 A1 EP0756150 A1 EP 0756150A1
Authority
EP
European Patent Office
Prior art keywords
shaft
plate
hole
rotation
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96420247A
Other languages
English (en)
French (fr)
Inventor
Alain Gac
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0756150A1 publication Critical patent/EP0756150A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/20—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes characterised by having holder or support other than casing, e.g. whirler or spike support

Definitions

  • the present invention relates to a festive merry-go-round for carrying and rotating a tray supporting various party decorations such as one or more pyrotechnic fountains, to produce a rotating animation such as a firework with sun effects or umbrella.
  • Document DE-A-26 02 291 describes a pyrotechnic device in which six fountains are carried by a fixed upper plate secured to a vertical shaft mounted on a base, with a simultaneous firing device comprising a movable lower plate pushed by a spring and striking by six strikers of the detonators distributed on an intermediate disc at the base of the fountains. There is no rotating animation.
  • a pyrotechnic device described in document US-A-1 617 084, in which a plate is rotatably mounted on a horizontal shaft.
  • the plate is formed of a lattice of several branches carrying several pyrotechnic fountains, some of which are oriented radially and others are oriented tangentially. Tangential fountains produce both a pyrotechnic effect, and the rotation of the tray around its tree.
  • Such a device is suitable for achieving a sun effect, but it must imperatively be used outdoors.
  • the fountains necessary for the rotation and the maintenance of the rotation of the plate are necessarily outdoor fountains, whose combustion gases have sufficient energy to propel the plate, but whose use is prohibited indoors, and the orientation of the tray along a horizontal axis is also incompatible with indoor use, because of the orientation of the pyrotechnic flows leaving the fountains to the sides and down during part of the rotation of the tray.
  • the rotation of the plate requires the provision of pyrotechnic fountains oriented tangentially, which increases the cost of the assembly.
  • Indoor pyrotechnic devices require the use of small indoor fountains, which are already sold to the general public and are designed to be used safely indoors. These indoor fountains only develop a low energy of combustion gas, and for this reason, they do not do not constitute an effective propellant for the rotation of a plate.
  • the problem proposed by the present invention is to design a new festive merry-go-round with a rotary table, with simple and inexpensive means, other than pyrotechnic devices, to cause and maintain the rotation of the table for a satisfactory period, for example of at least a minute.
  • Another object of the invention is to design such a device which is particularly simple and inexpensive, so that its production cost is compatible with the low prices that buyers are ready to devote to such a device capable of being used. once or a few times.
  • An application can reside in indoor pyrotechnic arenas, whose indoor fountains do not by themselves allow the rotation of the tray. By its simplicity, the device must then be able to be mounted by the user himself, so as to reduce its size for packaging, transport, and presentation on store shelves.
  • a second application may reside in external devices comprising non-propellant pyrotechnic devices or without propellant effect because of their non-tangential orientation.
  • Another application may reside, more generally, in the festive decor rides in which a tray with a vertical axis is rotated to animate a decor that may include two or three dimensional figurative elements, inscriptions, pyrotechnic devices such as as candles, indoor fountains, sparklers.
  • the merry-go-round furthermore comprises removable stop means for the start of the race, to selectively oppose the descent of the platform on the shaft, and to authorize said descent of the plate and its rotation on the shaft after removal of the stop.
  • the stop is a transverse fork engaged in an intermediate annular groove provided in the upper section of the shaft.
  • the stop is a combustible cord fixed on the upper section of the shaft, and can be connected from preference to pyrotechnic devices to ensure their ignition. The combustion of the cord releases the plate which enters into rotation, and can simultaneously ignite the pyrotechnic devices.
  • a festive merry-go-round according to the invention comprises a plate 1 rotatably mounted on a vertical shaft 2.
  • the shaft 2 is carried by a base 3 which keeps it in a substantially vertical position.
  • the tray 1 carries for example two diametrically opposite indoor pyrotechnic fountains 4 and 5 whose corresponding outlet orifice 6 or 7 is preferably directed upwards, the fountains 4 and 5 being able to be inclined in a plane tangent to rotation of the plate 1 at an inclination between about 15 ° and 30 °.
  • the inclination of the fountains 4 and 5 is preferably made in the direction that the thrust of the combustion gases maintains the rotation of the plate 1, as will be explained below.
  • the shaft 2 comprises an upper end 8 shaped as a needle, an upper section 9 by means of external engagement formed by a helical external thread 10 adjacent to a smooth lower section 11 with reduced diameter.
  • the plate 1 is integral with a sleeve making a blind coaxial hole 12, open downwards, comprising a lower inlet portion 13 with internal engagement means formed by an internal thread 130 engaging on the external thread 10 of the shaft 2 and adapted to allow the shaft 2 to penetrate.
  • a sleeve making a blind coaxial hole 12, open downwards, comprising a lower inlet portion 13 with internal engagement means formed by an internal thread 130 engaging on the external thread 10 of the shaft 2 and adapted to allow the shaft 2 to penetrate.
  • the hole 12 of the sleeve comprises an intermediate portion 14 with a widened diameter, making it possible to avoid any friction contact between said intermediate portion 14 and the shaft 2.
  • the hole 12 of the sleeve is limited by an upper bottom 15, offset from the inlet portion 13 by a distance D greater than the distance Di between the upper end 8 and the smooth lower section 11 of the shaft 2. From this so, when the upper end 8 of the shaft 2 needle presses against the upper bottom 15 of the hole 12, the inlet portion 13 is opposite the smooth lower section 11, released from the helical external thread 10, so that the plate 1 can then freely continue its rotation around the shaft 2 without its rotation being disturbed by friction between the side walls of the hole 12 and the shaft 2.
  • the upper bottom 15 has a coaxial concave inner surface, for example conical with apex centered on the longitudinal axis of the hole 12, and with a more open angle than the upper end 8 of the shaft needle 2.
  • the helical external thread 10 of the shaft 2 has a step to the left, to ensure the rotation of the plate 1 in the anticlockwise direction when viewed from above.
  • a helical external thread 10 with right-hand pitch causing a reverse rotation of the plate 1.
  • the plate 1 is initially at the start of the race, as illustrated in FIG. 3, adapted on the upper portion of the shaft 2 in the vicinity of the upper end 8 which is engaged in the hole 12 of the sleeve.
  • the plate 1 tends to descend by its own weight while rotating in the opposite direction of the needles of a watch.
  • the upper end 8 of the shaft 2 comes to bear on the upper bottom 15 of the hole 12, which prevents further progression of the plate 1 downwards.
  • the lower inlet portion 13 of the hole 12 is located opposite the smooth lower section 11 of the shaft 2, lower section devoid of external helical thread.
  • the plate 1 freely continues its rotation, this rotation being disturbed by no significant friction between the peripheral lateral face of the shaft 2 and the internal face of the hole 12. The only friction occurs between the needle formed by the upper end 8 of the 'shaft 2 and the upper bottom 15 of the hole 12. This friction is very low, so that the inertia of the plate 1 allows sufficient rotation of the plate 1 for a satisfactory period which may be greater than one minute.
  • a stop means for the start of the race, selectively opposing the descent of the plate 1 on the shaft 2, and authorizing said descent of the plate 1 and its rotation on the shaft 2 after removal of the stop.
  • a stop means may for example be a transverse fork engaged in an intermediate annular groove 16 provided in the upper section 9 of the shaft 2, or a transverse rod engaged in a removable manner in corresponding radial holes in the shaft 2 and of tray 1.
  • the abutment means can advantageously be a fuel cord fixed to an intermediate portion of the upper section 9 of the shaft 2. The rotation of the plate 1 can then be ensured by the combustion of the fuel cord, that the user ignites after firing the indoor pyrotechnic fountains 4 and 5.
  • the fuel cord can advantageously be connected to the indoor pyrotechnic fountains 4 and 5, to ensure their ignition.
  • the combustion of the cord simultaneously ensures the rotation of the plate 1 and the ignition of the indoor pyrotechnic fountains 4 and 5.
  • Figures 9 and 10 illustrate an advantageous embodiment of the removable start stop means.
  • Figure 9 shows the device in the standby position, while Figure 10 shows the device at the end of the descent stroke, during or after rotation.
  • the stop means comprise an intermediate shoulder 19 of the hole 12 between a lower bore 20 of larger diameter and an upper bore 21 of smaller diameter, and an intermediate shoulder 22 of the shaft 2 between the upper section 9 and the needle 8.
  • the plate 1 In the standby position illustrated in FIG. 9, the plate 1 is slightly inclined, the intermediate shoulder 19 of the hole 12 coming to bear on the intermediate shoulder 22 of the shaft 2. Returning to the axis of the plate 1 , as illustrated in FIG. 10, inhibits the stop effect, and authorizes the descent of the plate 1 and its rotation around the shaft 2 to the lower position illustrated in FIG. 10, position in which the rotation of the plate 1 can continue with very low friction.
  • the shaft 2 comprises, in the upper portion of its upper section 9, a radial projection 23 opposing the passage through the lower inlet portion 13 of the hole 12.
  • L 'radial protuberance 23 can, for example, be a pin engaged transversely in a corresponding hole in the shaft 2. This avoids the separation of the plate 1 and the base 3.
  • the coaxial sleeve with a hole 12 is offset upward relative to the plate 1, its inlet portion 13 being substantially at the level of the plate 1. This ensures good balance of the plate 1 during its rotation, by the fact that the upper bottom 15 of the blind coaxial hole 12 is then offset upwards relative to the center of gravity of the plate 1.
  • the inlet portion 13 of the hole 12 can advantageously be an insert 17, with central hole 18.
  • the insert 17 can have a central hole 18 with a square section, the square section forming the thread interior 130 adaptable to the helical external thread 10 of the shaft 2.
  • the shaft 2 is a rod with a twisted square section, the twisted square section forming the external helical thread 10.
  • Such a device can be produced by assembling several assemblable parts as illustrated in FIGS. 6 to 8.
  • the shaft 2 can simply be force-fitted into a hole made in the base 3.
  • the hole 12 can also be force-fitted into a central hole in the tray 1.
  • the part 17 can also be forcibly engaged in a bore of greater diameter of the tray 1.
  • the indoor pyrotechnic fountains can be simply engaged in tubular supports engaged in force in plate holes 1.
  • the tray 1 can be a full disc, as illustrated in the figures. Alternatively, one can provide an openwork tray, or a tray formed by spokes connecting a central hub at the ends carrying the indoor pyrotechnic fountains 4 and 5. One can also provide a different number of indoor pyrotechnic fountains, positioned so as to balance the plate 1 around its central axis of rotation.
  • the plate 1 is automatically rotated around the shaft 2, and its rotation continues long enough to last during the entire combustion of indoor pyrotechnic fountains 4 and 5, this rotation can also be maintained at less in part by the thrust of the combustion gases from the indoor pyrotechnic fountains 4 and 5 carried by the plate 1.
  • the invention also applies to outdoor pyrotechnic arenas in which we want to avoid, for cost reasons, to provide tangential propelling fountains ensuring the rotation of the plate.
  • the plate can then carry non-propellant pyrotechnic devices such as candles, or pyrotechnic devices with propellant effect, the orientation of which does not produce rotation torque of the plate.
  • the invention applies to all types of festive merry-go-round in which one or more decorative elements are arranged on the rotary plate 1.
  • the plate 1 can be adapted to receive and retain a wide variety of decorations, for example interchangeable bands around its edge, figures representing an age or a year of birth, or pyrotechnic devices such as candles, indoor pyrotechnic fountains, sparklers.
  • the product is thus suitable for multiple uses.
  • the shaft 2 is for example as illustrated in Figures 3 and 4, with a lower part long enough so that the cake can be accommodated between the tray 1 and the base 3 when the device is in the end position of rotation as illustrated in FIG. 4.
  • the shaft 2 can be of structural telescopic, with adaptable extensions.
  • the shaft 2 is removably adapted by its lower end in the base 3, so that the cake can be adapted on the base 3, then the shaft 2 engaged on the corresponding hole of the base 3 after crossing the cake in its central portion.
EP96420247A 1995-07-28 1996-07-22 Festverzierungskarussel Withdrawn EP0756150A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9509397A FR2737291B1 (fr) 1995-07-28 1995-07-28 Manege pyrotechnique
FR9509397 1995-07-28

Publications (1)

Publication Number Publication Date
EP0756150A1 true EP0756150A1 (de) 1997-01-29

Family

ID=9481635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96420247A Withdrawn EP0756150A1 (de) 1995-07-28 1996-07-22 Festverzierungskarussel

Country Status (2)

Country Link
EP (1) EP0756150A1 (de)
FR (1) FR2737291B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2828241A1 (fr) 2001-07-31 2003-02-07 Alphan Loisirs Dispositif rotatif gravitationnel
US7287474B2 (en) 2003-09-22 2007-10-30 Spitdog Resources, Llc Consumer pyrotechnics support apparatus
FR2906023A1 (fr) * 2006-09-15 2008-03-21 Alain Lambert Support de fusees decoratives et kit de presentation d'une bouteille.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1522313A (en) * 1924-09-02 1925-01-06 Metzger Oscar Display apparatus for fireworks
US1554065A (en) * 1916-02-23 1925-09-15 Robert S Blair Aerial fireworks
US1617084A (en) * 1926-05-14 1927-02-08 Jr James H Shunk Pyrotechinc wheel
DE2602291A1 (de) * 1976-01-22 1977-07-28 Vladimir Kovac Abschussvorrichtung fuer knallkoerper, signal- und leuchtraketen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1554065A (en) * 1916-02-23 1925-09-15 Robert S Blair Aerial fireworks
US1522313A (en) * 1924-09-02 1925-01-06 Metzger Oscar Display apparatus for fireworks
US1617084A (en) * 1926-05-14 1927-02-08 Jr James H Shunk Pyrotechinc wheel
DE2602291A1 (de) * 1976-01-22 1977-07-28 Vladimir Kovac Abschussvorrichtung fuer knallkoerper, signal- und leuchtraketen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2828241A1 (fr) 2001-07-31 2003-02-07 Alphan Loisirs Dispositif rotatif gravitationnel
US7287474B2 (en) 2003-09-22 2007-10-30 Spitdog Resources, Llc Consumer pyrotechnics support apparatus
FR2906023A1 (fr) * 2006-09-15 2008-03-21 Alain Lambert Support de fusees decoratives et kit de presentation d'une bouteille.

Also Published As

Publication number Publication date
FR2737291A1 (fr) 1997-01-31
FR2737291B1 (fr) 1997-08-29

Similar Documents

Publication Publication Date Title
FR2673849A1 (fr) Jouet educatif pour la selection de formes.
EP3122655A1 (de) Vorrichtung zur bereitstellung eines pellets
EP0756150A1 (de) Festverzierungskarussel
BE1006946A6 (fr) Petite decoration equipee d'un element decoratif mobile, actionne par un ressort.
FR2757252A1 (fr) Briquet a gaz comportant un systeme d'allumage de securite
FR3125693A3 (fr) Support de cime d'arbre
WO2012153014A1 (fr) Bijou ou accessoire vestimentaire à mécanisme de déplacement de pierre
EP1072811A1 (de) Haltevorrichtung für zwei ringförmige Federn der Synchronsperre in einer Synchronisationsnabe geeignet für Synchronisiereinrichtungen bei Kraftfahrzeug-Getrieben
CA3178967A1 (fr) Appareil culinaire avec dispositif d'entrainement a corde a commande amovible
FR2983417A1 (fr) Toupie a elements mobiles deployables
FR2910570A1 (fr) Dispositif pour la connexion/deconnexion de deux elements a partir d'un deplacement axial relatif de ces deux elements
EP0952423B1 (de) Verzierungsplatte für Feuerwerk
FR2906023A1 (fr) Support de fusees decoratives et kit de presentation d'une bouteille.
LU87575A1 (fr) Dispositif pour faire mouvoir des formes
FR3077993A1 (fr) Dispositif festif connecte en chocolat
WO2004070274A1 (fr) Briquet piezoelectrique a securite renforcee
FR2644334A1 (fr) Table ronde avec anneaux de rallonges amovibles
FR2828241A1 (fr) Dispositif rotatif gravitationnel
WO2010032153A1 (fr) Bague depliable
FR2725938A3 (fr) Decoration generant des effets sonores et visuels
EP1319586A1 (de) Unterbodenbefestigung für ein Kraftfahrzeugersatzrad
WO1998051886A1 (fr) Etai
FR2745554A1 (fr) Dispositif pour le comptage et la distribution de granules
EP0058625A1 (de) Spielzeug, das einen Fallschirmspringer vorstellt
FR2929355A1 (fr) Dispositif pour la connexion/deconnexion de deux elements a partir d'un deplacement axial relatif de ces deux elements

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

17P Request for examination filed

Effective date: 19970516

REG Reference to a national code

Ref country code: CH

Ref legal event code: PLI

Owner name: GAC, ALAIN TRANSFER- ALPHAN-LOISIRS

111L Licence recorded

Free format text: 971017 0100 ALPHAN-LOISIRS

17Q First examination report despatched

Effective date: 19990223

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20001229