EP0071319A1 - Lanceur de boomerang - Google Patents

Lanceur de boomerang Download PDF

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Publication number
EP0071319A1
EP0071319A1 EP82200981A EP82200981A EP0071319A1 EP 0071319 A1 EP0071319 A1 EP 0071319A1 EP 82200981 A EP82200981 A EP 82200981A EP 82200981 A EP82200981 A EP 82200981A EP 0071319 A1 EP0071319 A1 EP 0071319A1
Authority
EP
European Patent Office
Prior art keywords
boomerang
end opening
holder
slot
striker
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Withdrawn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
EP82200981A
Other languages
German (de)
English (en)
Inventor
Johan Van Uitert
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 EP0071319A1 publication Critical patent/EP0071319A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B65/00—Implements for throwing  ; Mechanical projectors, e.g. using spring force
    • A63B65/08—Boomerangs ; Throwing apparatus therefor

Definitions

  • This invention relates to an apparatus for launching and possibly re-catching a boomerang or like object which owing to its form has the property, after being hurled away,to return approximately to the same point.
  • frisbee a disk-shaped object which is thrown with a particular wrist movement and then, following a more or less curved trajectory, floats away, whereby another, at a distance from the one who has thrown the disk, may try to catch it. Accordingly, the frisbee game is often played with two or more persons.
  • a boomerang has at least two legs at an angle to each other, often of unequal length and with a specific cross-sectional profile tending to impart a "lift" to the boomerang.
  • This lifting power in combination with a rotation imparted to the boomerang is capable of causing it to turn on. its flight and return to the point where it has been thrown as a result of the fact that the plane of rotation tilts during the flight as a consequence of asymmetrical rotation, possibly in combination with unequal lift of the two legs.
  • a rotary component For a boomerang to be effectively launched, in addition to a forward component of movement, a rotary component must be imparted to it in a sufficient degree in order that the desired gradual deflection of the direction of movement may be brought about. This is already difficult with a boomerang designed as a weapon with sufficient mass, but hardly, if at all, possible with miniaturization.
  • the boomerang launcher comprises a holder provided with a continuous diverging boomerang receiving slot with a wide end opening and a narrow end opening, with a stop extending adjacent one of the side ends of the wide end opening into said opening, the other, narrow'end opening of the slot lying in the path of a striker,. the arrangement being such that a boomerang having at least two legs interconnected by a knee bend, can be placed in said slot with one of the legs confined behind said stop and with the knee bend projecting from said narrow end opening.
  • a boomerang thus positioned in the slot can be launched by striking the knee bend, at any rate the boomerang at a point spaced from the end located behind the stop, with the striker, whereby the boomerang tends to leave the slot with its legs in.the forward direction, but as one of the legs is temporarily retained by the stop, can only do this after having rotated through a given angle..
  • both a forward and a rotary movement is imparted to the boomerang, comparable to that imparted-to it when it is thrown away by hand.
  • the launching holder may be secured to a handle with means for causing the striker to strike the knee bend of a boomerang placed in the holder with a selected velocity.
  • the striker movement can be induced in various manners, for example, pneumatically or electrically, or by means of a bursting-charge, but a cheap form, suitable for sport and entertainment purposes is that in which, according to the invention, the holder is secured to a shaft with a handle, with the striker arranged to move over said shaft, and to be tensioned to a greater or lesser extent by means of a spring for it, after being released, to impart to the boomerang a momentum of controlled magnitude, with which the trajectory followed is influenced.
  • the apparatus can be used by one person, and a contest element can be introduced by prescribing that the boomerang should follow a path.around an obstacle, with a further possible requirement, being that the. boomerang is caught again by the same person., for which purpose the launcher may be equipped with a net or like receptacle for the returning boomerang.
  • a boomerang launching apparatus with. a holder 3 secured with a shaft 1 to a handle 2, and to which a net 5 is secured-by means of a ring or other closed carrier 4.
  • Holder 3 is provided with a slot 6 diverging away from shaft 1 with a wide end opening 7 and a narrow end opening 8.
  • a boomerang is shown in solid lines positioned within slot 6. The free end of one of the legs of the boomerang, as shown in Fig. 1, is confined behind a stop 10 near the left-hand end of the end opening 7.
  • the knee bend 11 which interconnects the legs of the boomerang, projects rearwardly beyond the narrow end opening 8, and is situated in the path of a striker 12 guided on shaft 1, and in operative association with a drive element which in the embodiment shown takes the form of a helical spring 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Toys (AREA)
EP82200981A 1981-07-31 1982-07-30 Lanceur de boomerang Withdrawn EP0071319A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8103637 1981-07-31
NL8103637A NL8103637A (nl) 1981-07-31 1981-07-31 Boemerang-lanceerapparaat.

Publications (1)

Publication Number Publication Date
EP0071319A1 true EP0071319A1 (fr) 1983-02-09

Family

ID=19837881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200981A Withdrawn EP0071319A1 (fr) 1981-07-31 1982-07-30 Lanceur de boomerang

Country Status (4)

Country Link
EP (1) EP0071319A1 (fr)
JP (1) JPS5827571A (fr)
AU (1) AU8663682A (fr)
NL (1) NL8103637A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591905A1 (fr) * 1985-12-24 1987-06-26 Stampfli Jacques Dispositif pour imprimer a un objet un libre mouvement de pivotement rapide sur lui-meme, notamment autour de l'un de ses axes
EP0296294A1 (fr) * 1987-06-25 1988-12-28 Jacques Stämpfli dit Verlier Dispositif pour imprimer à un objet un libre mouvement de pivotement rapide sur lui-même, notamment autour de l'un de ses axes
WO1999064118A1 (fr) 1998-06-07 1999-12-16 Ben Hador David Boomerang et dispositif de lancement

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR381402A (fr) * 1907-08-30 1908-01-11 Robert Wohlmeyer Dispositif pour lancer des boumerangs
FR499941A (fr) * 1919-05-23 1920-02-26 Charles Moreau Jeu du boomerang
US1561715A (en) * 1925-06-20 1925-11-17 Neil Mcbeath Toy boomerang
US1759471A (en) * 1928-04-03 1930-05-20 Don V Tantlinger Boomerang-throwing device
DE577412C (de) * 1931-05-09 1933-05-31 Paul Koellner Bumerangschleuder
FR1448171A (fr) * 1965-06-21 1966-01-28 Boomerang et appareil de lancement
FR1543388A (fr) * 1967-09-11 1968-10-25 Dispositif lanceur d'objets à propriétés de boomerangs

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR381402A (fr) * 1907-08-30 1908-01-11 Robert Wohlmeyer Dispositif pour lancer des boumerangs
FR499941A (fr) * 1919-05-23 1920-02-26 Charles Moreau Jeu du boomerang
US1561715A (en) * 1925-06-20 1925-11-17 Neil Mcbeath Toy boomerang
US1759471A (en) * 1928-04-03 1930-05-20 Don V Tantlinger Boomerang-throwing device
DE577412C (de) * 1931-05-09 1933-05-31 Paul Koellner Bumerangschleuder
FR1448171A (fr) * 1965-06-21 1966-01-28 Boomerang et appareil de lancement
FR1543388A (fr) * 1967-09-11 1968-10-25 Dispositif lanceur d'objets à propriétés de boomerangs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591905A1 (fr) * 1985-12-24 1987-06-26 Stampfli Jacques Dispositif pour imprimer a un objet un libre mouvement de pivotement rapide sur lui-meme, notamment autour de l'un de ses axes
EP0296294A1 (fr) * 1987-06-25 1988-12-28 Jacques Stämpfli dit Verlier Dispositif pour imprimer à un objet un libre mouvement de pivotement rapide sur lui-même, notamment autour de l'un de ses axes
WO1999064118A1 (fr) 1998-06-07 1999-12-16 Ben Hador David Boomerang et dispositif de lancement
US6739993B2 (en) 1998-06-07 2004-05-25 David Ben-Hador Flying toy

Also Published As

Publication number Publication date
NL8103637A (nl) 1983-02-16
JPS5827571A (ja) 1983-02-18
AU8663682A (en) 1983-02-03

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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

Designated state(s): BE DE FR GB IT NL

17P Request for examination filed

Effective date: 19830808

111L Licence recorded

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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: 19840928