A flapping flight device according to the present invention is a flight device having at least one wing on each of the left and right sides of a fuselage so as to make a relative movement with regard to the fuselage by means of a driving source, thereby generating lift. At least one crank mechanism is provided on each of the left and right sides of the fuselage so as to receive driving force from the driving source. Each crank mechanism comprises a crankshaft extending in the forward/backward direction of the fuselage, a crankpin that makes a revolving movement around the crankshaft, and a crankarm that connects the crankshaft and the crankpin. Each crankpin revolves in such a rotational direction that, when descending, the same passes through the farthest point from the fuselage. The fuselage has at least one flapping movement shaft provided to serve as the center axis of the flapping. Each crank mechanism has a wing/crank connecting portion provided to bond the crankpin and the wing. The wing end of each wing is in a free-end state, the middle part thereof is coupled to the wing/crank connecting portion, and the inner part thereof is bonded to the flapping movement shaft to be able to swivel or slide. When the wing makes descent flapping following a revolving movement of the crankpin that receives driving force from the driving source, the orthographically projected wingspan gradually lengthens and, after passing through the maximum point, gradually shortens. When the wing makes ascent flapping, the orthographically projected wingspan gradually shortens and, after passing through the minimum point, gradually lengthens.

    Dispositif de vol à battement selon la présente invention qui est un dispositif de vol ayant au moins une aile sur chacun des côtés gauche et droit d'un fuselage de manière à effectuer un déplacement relatif par rapport au fuselage au moyen d'une source d'entraînement, produisant ainsi une portance. Au moins un mécanisme de manivelle est disposé sur chacun des côtés gauche et droit du fuselage de façon à recevoir une force d'entraînement provenant de la source d'entraînement. Chaque mécanisme de manivelle comprend un vilebrequin s'étendant dans la direction avant/arrière du fuselage, un maneton qui effectue un déplacement de rotation autour du vilebrequin, et un bras de manivelle qui relie le vilebrequin et le maneton. Chaque maneton tourne dans une direction de rotation telle que, lorsqu'il descend, celui-ci passe par le point le plus éloigné du fuselage. Le fuselage comporte au moins un arbre de déplacement de battement prévu pour servir d'axe central du battement. Chaque mécanisme de manivelle comprend une partie de liaison d'aile/manivelle prévue pour relier le maneton et l'aile. L'extrémité d'aile de chaque aile est dans un état d'extrémité libre, la partie centrale de celle-ci est accouplée à la partie de liaison d'aile/manivelle, et la partie intérieure de celle-ci est liée à l'arbre de déplacement de battement pour pouvoir pivoter ou coulisser. Lorsque l'aile effectue un battement de descente à la suite d'un déplacement de rotation du maneton qui reçoit une force d'entraînement de la source d'entraînement, l'envergure projetée orthographiquement s'allonge progressivement et, après avoir traversé le point maximal, raccourcit progressivement. Lorsque l'aile effectue un battement de montée, l'envergure projetée orthographiquement raccourcit progressivement et, après avoir traversé le point minimal, s'allonge progressivement.

    본 발명의 날갯짓 비행장치는, 구동원에 의해 동체에 대한 상대운동을 하여 부양력을 발생시키는 날개를 상기 동체에 좌측과 우측에 각각 1개 이상 가지는 비행장치에 있어서, 상기 동체의 좌측과 우측에는, 상기 구동원에서 구동력을 전달받는 크랭크기구가 각각 1개 이상 구비되고, 각 상기 크랭크기구에는, 상기 동체의 앞뒤 방향으로 뻗은 크랭크축과, 상기 크랭크축을 중심으로 공전운동을 하는 크랭크핀과, 상기 크랭크축과 상기 크랭크핀을 연결해 주는 크랭크암이 구비되고, 각 상기 크랭크핀은 하강할 때에 상기 동체에서 가장 멀리 떨어진 지점을 통과하는 회전방향으로 공전하며, 상기 동체에는, 상기 날갯짓의 중심축 역할을 하는 날갯짓운동축이 1개 이상 구비되고, 각 상기 크랭크기구에는, 상기 크랭크핀과 상기 날개를 접합시켜주는 날개크랭크접속부가 구비되고, 각 상기 날개는, 날개끝단은 자유단 상태이며, 중간부위는 상기 날개크랭크접속부에 결합 되고, 내측부위는 상기 날갯짓운동축에 제자리회전 또는 미끄럼운동이 가능한 방식으로 접합되어, 상기 구동원에서 구동력을 전달받는 상기 크랭크핀의 공전운동에 따라 상기 날개가 하향 날갯짓을 할 때에는 정사투영 날개폭(wingspan)이 점점 더 길어지다가 최대점을 지나면서 다시 점점 짧아지게 되고, 날개가 상향 날갯짓을 할 때에는 정사투영 날개폭이 점점 더 짧아지다가 최소점을 지나면서 다시 점점 길어지게 되는 것을 특징으로 한다.


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    Title :

    FLAPPING FLIGHT DEVICE HAVING VARIABLE WINGSPAN


    Additional title:

    DISPOSITIF DE VOL À BATTEMENT AYANT UNE ENVERGURE VARIABLE
    날개폭이 변하는 날갯짓 비행장치


    Contributors:

    Publication date :

    2018-08-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / A63H Spielzeuge, z.B. Kreisel, Puppen, Reifen, Baukästen , TOYS, e.g. TOPS, DOLLS, HOOPS, BUILDING BLOCKS / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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