FR2705199A1

FR2705199A1 - Mechanical assembly for keeping birds out of trees

Info

Publication number: FR2705199A1
Application number: FR9306170A
Authority: FR
Inventors: Aleix Sylvain
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-17
Filing date: 1993-05-17
Publication date: 1994-11-25
Anticipated expiration: 2013-05-17
Also published as: FR2705199B1

Abstract

The invention relates to a mechanical assembly designed to keep birds away from trees by moving the branches of these trees in a clearly defined cycle. The said mechanical assembly is characterised in that it includes at least one device (1) consisting of at least two parts (2) and (3) which move in space with respect to each other and which are joined via their free ends (4) and (5) by means of fasteners (6) and (7) to at least two separate branches (8) and (9) so as to alter the distance (D) between the said branches and in that the two parts move slowly in one direction under the effect of a motorised link and move back abruptly in the other direction under the effect of the elasticity of the said branches and of the elimination of the said motorised link.

Description

ENSEMBLE MECANIQUE POUR ELOIGNER LES OISEAUX DES ARBRES
Ltinvention est relative à un ensemble mécanique destiné à éloigner les oiseaux des arbres en mettant en mouvement les branches de ces derniers selon un cycle bien spécifique.MECHANICAL ASSEMBLY FOR MOVING BIRDS FROM TREES
The invention relates to a mechanical assembly intended to keep birds away from the trees by setting the branches of the latter in motion according to a very specific cycle.

Les problèmes liés à la présence des oiseaux, principalement des étourneaux et des moineaux, sur les branches des arbres, en ville comme à la campagne, ne sont toujours pas solutionnés à ce jour par les techniques connues des types sonores (bruits divers) ou visuelles (présence de corps étrangers et éclairages divers). The problems linked to the presence of birds, mainly starlings and sparrows, on the branches of trees, in town as in the countryside, are still not solved to date by the known techniques of the sound types (various noises) or visual (presence of foreign bodies and various lights).

L'invention vise donc à réaliser un ensemble mécanique qui met en mouvement les branches des arbres selon un cycle bien spécifique. The invention therefore aims to produce a mechanical assembly which sets in motion the branches of the trees according to a very specific cycle.

I1 met en oeuvre à cet effet au moins un dispositif constitué par au moins deux parties qui se déplacent dans l'espace l'une par rapport à l'autre et qui sont reliées, par leurs extrémités libres, au moyen d'attaches particu lières, à au moins deux branches distinctes d'un arbre de manière à modifier la distance existant entre lesdites branches. Lesdites deux parties se déplacent, dans un sens, lentement, sous l'effet d'une liaison motorisée et, dans l'autre sens, brutalement, sous l'effet de ltélasticité desdites branches et de la suppression de ladite liaison motorisée. I1 implements for this purpose at least one device consisting of at least two parts which move in space relative to one another and which are connected, by their free ends, by means of particular fasteners , at least two distinct branches of a tree so as to modify the distance existing between said branches. Said two parts move, in one direction, slowly, under the effect of a motorized connection and, in the other direction, suddenly, under the effect of the elasticity of said branches and the removal of said motorized connection.

Les caractéristiques et les avantages de l'invention vont apparaitre plus clairement à la lecture de la description détaillée qui suit d'un ou plusieurs modes de réalisation préférés de celle-ci donnés à titre d'exemple non limitatif et représentés aux dessins annexés. The characteristics and advantages of the invention will appear more clearly on reading the following detailed description of one or more preferred embodiments thereof given by way of non-limiting example and shown in the accompanying drawings.

Sur ces dessins - la figure 1 est un schéma de principe du dispositif selon l'invention; - la figure 2 est une vue en coupe du dispositif utilisant un vérin; - la figure 3 est une vue du dispositif utilisant une came; - la figure 4 est une vue du dispositif utilisant un vérin sur lequel on a aménagé des butées de fin de course; - la figure 5 est une vue partielle en coupe A dudit dispositif; - la figure 6 est une vue en perspective des pièces porteuses des moyens de liaison aux branches des arbres.In these drawings - Figure 1 is a block diagram of the device according to the invention; - Figure 2 is a sectional view of the device using a jack; - Figure 3 is a view of the device using a cam; - Figure 4 is a view of the device using a jack on which end stops have been arranged; - Figure 5 is a partial sectional view A of said device; - Figure 6 is a perspective view of the supporting parts of the connecting means to the branches of the trees.

Selon la figure 1, l'ensemble mécanique comporte au moins un dispositif (1) constitué par au moins deux parties (2) et (3) qui se déplacent dans l'espace l'une par rapport à l'autre et qui sont reliées, par leurs extrémités libres (4) et (5), au moyen d'attaches (6) et (7), à au moins deux branches distinctes (8) et (9) d'un arbre de manière à modifier la distance (D) existant entre lesdites branches. According to Figure 1, the mechanical assembly includes at least one device (1) consisting of at least two parts (2) and (3) which move in space relative to each other and which are connected , by their free ends (4) and (5), by means of fasteners (6) and (7), to at least two distinct branches (8) and (9) of a tree so as to modify the distance ( D) existing between said branches.

Les parties (2) et (3) se déplacent, dans un sens, lentement, sous l'effet d'une liaison motorisée et, dans l'autre sens, brutalement , sous l'effet de l'élasticité desdites branches et de la suppression de ladite liaison motorisée.The parts (2) and (3) move, in one direction, slowly, under the effect of a motorized connection and, in the other direction, suddenly, under the effect of the elasticity of said branches and of the deletion of said motorized link.

La liaison motorisée peut ecarter les branches en poussant ou les rapprocher en tirant pour les libérer ensuite pour qu'elles reprennent brutalement leur position initiale.The motorized link can spread the branches by pushing or bring them together by pulling to release them then so that they suddenly return to their initial position.

Selon la figure 2, la liaison motorisée est du type à vérin (10), à commande hydraulique ou pneumatique, associé à une vanne 3 voies (11) actionnant linéairement la tige (12) dans les deux sens selon le cycle "lent rapide" précédent. According to FIG. 2, the motorized connection is of the cylinder type (10), with hydraulic or pneumatic control, associated with a 3-way valve (11) linearly actuating the rod (12) in both directions according to the "slow fast" cycle previous.

Ladite vanne comporte une entrée de pression (E) et une sortie libre (S) de manière à déplacer l'extrémité (5) de la tige (12) dans un sens et la libérer dans l'autre.Said valve has a pressure inlet (E) and a free outlet (S) so as to move the end (5) of the rod (12) in one direction and release it in the other.

Selon la figure 3, la liaison motorisée est du type à came (13),entrai- née par un motoréducteur (14) à commande électrique, dant la forme du profil actionne linéairement la tige (15), guidée par le guide (16) solidaire de la platine de fixation (17),dans les deux sens selon le cycle "lent-rapide" précédent. According to FIG. 3, the motorized connection is of the cam type (13), driven by a gear motor (14) with electrical control, in the shape of the profile linearly actuates the rod (15), guided by the guide (16) secured to the fixing plate (17), in both directions according to the previous "slow-fast" cycle.

La came (13) peut commander plusieurs tiges (15) placées radialement autour de ladite came.The cam (13) can control several rods (15) placed radially around said cam.

Selon les figures 4 et 5, la vanne 3 voies (11) comporte un levier de commande (18) qui est actionné dans une position puis dans l'autre au moyen de deux butées (19) et (20) placées respectivement à chaque fin de course de la tige (12) du vérin par l'intermèdiaire d'une tige (21) qui lui est paralléle et solidaire et qui coulisse sur deux goujons (22) de maintien du vérin par l'intermèdiaire de la pièce coulissante (23) de laquelle elle est solidaire en translation. According to Figures 4 and 5, the 3-way valve (11) comprises a control lever (18) which is actuated in one position and then in the other by means of two stops (19) and (20) placed respectively at each end stroke of the rod (12) of the jack through a rod (21) which is parallel and integral with it and which slides on two studs (22) for holding the jack through the sliding part (23 ) of which it is integral in translation.

La figure 6 représente les pièces (24), destinées à être fixées sur les extrémités libres (4) et (5) des parties (2) et (3) en mouvement relatif, généralement en forme de U, pourvues de trous (25) dans lesquels sont fixés des petits cables (26) comportant, à chaque extrémité libre, un moyen (27) apte à assurer leur fixation aux branches des arbres. Figure 6 shows the parts (24), intended to be fixed on the free ends (4) and (5) of the parts (2) and (3) in relative movement, generally in the shape of a U, provided with holes (25) in which small cables (26) are fixed comprising, at each free end, a means (27) capable of ensuring their fixing to the branches of the trees.

Les pièces (24) peuvent etre par exemple soudées à l'extrémité (4) et main tenues par écrou et contre-écrou à ltextrémité de la tige (5) qui est dans ce cas filetée. Ceci permet en outre de régler la longueur de la liaison mécanisée.The parts (24) can for example be welded to the end (4) and hand held by nut and lock nut at the end of the rod (5) which is in this case threaded. This also makes it possible to adjust the length of the mechanized link.

Dans la réalisation préférée de l'invention on rapproche les branches en les tirant pour les libérer le moment voulu. La course correspondante est réglée au moyen des butées (19) et (20) ou du profil de la came (13). In the preferred embodiment of the invention, the branches are brought together by pulling them out to release them for the required time. The corresponding stroke is adjusted by means of the stops (19) and (20) or the profile of the cam (13).

Le moyen (27) apte à assurer la fixation des extrémités des petits cables (26) peut comporter un système d'attache rapide.The means (27) capable of securing the ends of the small cables (26) may include a quick attachment system.

Le levier (18) comporte un ressort de rappel (28) permettant des positions extrèmes stables audit levier.The lever (18) comprises a return spring (28) allowing extreme positions stable to said lever.

Différents types de vérins et de cames peuvent être utilisés en fonction de l'application.Different types of cylinders and cams can be used depending on the application.

Plusieurs dispositifs des types précédents peuvent être reliés à une même centrale électrique, pneumatique ou hydraulique.Several devices of the previous types can be connected to the same electric, pneumatic or hydraulic power station.

Bien entendu, l'invention n' est pas limitée aux modes de réalisation décrits et représentés pour lesquels on pourra prévoir d'autres variantes sans pour cela sortir du cadre de l'invention, en particulier concernant: - le type de motorisation utilisé; - le nombre de dispositifs motorisés pour un arbre donné; - les formes et les dimensions de ces derniers. Of course, the invention is not limited to the embodiments described and shown for which other variants can be provided without thereby departing from the scope of the invention, in particular concerning: - the type of motorization used; - the number of motorized devices for a given tree; - the shapes and dimensions of the latter.

Claims

1- Mechanical assembly intended to move birds away from trees, characterized in that it comprises at least one device (1) constituted by at least two parts (2) and (3) which move in space, one by relative to each other and which are connected, by their free ends (4) and (5), by means of fasteners (6) and (7), to at least two separate branches (8) and (9) of a shaft so as to modify the distance (D) existing between said branches and in that said two parts move, in one direction, slowly, under the effect of a motorized connection and, in the other direction, suddenly, under the effect of the elasticity of said branches and the removal of said motorized connection.

2- Mechanical assembly according to claim 1, characterized in that the motorized connection is of the jack type (10), with hydraulic or pneumatic control, associated with a 3-way valve (11) actuating the rod (12) linearly in the two directions according to the previous "slow-fast" cycle.

3- Mechanical assembly according to claim 1, characterized in that the motorized connection is of the cam type (13), driven by a geared motor (14), the shape of the profile of which linearly actuates a rod (15), guided by a guide (16) secured to a fixing plate (17), in both directions according to the previous "slow-fast" cycle.

4- Mechanical assembly according to claim 2, characterized in that the 3-way valve (11) comprises a control lever (18) which is actuated in one position and then in the other by means of two stops (19) and ( 20) placed respectively at each end of travel of the rod (12) of the jack by means of a rod (21) which is parallel and integral with it and which slides on two studs (22) for fixing the jack by the intermediate a sliding part (23) of which it is integral in translation.

5- Mechanical assembly according to claim 3, characterized in that a cam (13) can control several rods (15) placed radially around said cam.

6 - assembly according to any one of the preceding claims, characterized in that the free ends (4) and (5) comprise parts (24), generally U-shaped, provided with holes (25) in which are fixed small cables (26) comprising, at each free end, a means (27) capable of ensuring their attachment to the branches of the trees.