CA2098937A1

CA2098937A1 - Security gate for school bus

Info

Publication number: CA2098937A1
Application number: CA002098937A
Authority: CA
Inventors: Mario Drapeau; Christine Bedard
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-22
Filing date: 1993-06-22
Publication date: 1994-12-23

Abstract

PRÉCIS Un ensemble de dispositifs de sécurité adaptables sur les autobus scolaires comprenant des gardes rétractables mus par des cylindres rattachés à un accumulateur avec un contrôle au niveau du conducteur comprenant: un garde en panneau ayant une partie mobile servant à bloquer l'accès sous le côté droit de l'autobus depuis l'arrière jusqu'à la porte d'embarquement ou jusqu'à la roue avant. Le garde en panneau est facilement et rapidement démontable afin d'en faciliter l'entretien ainsi que celui du véhicule ou pour permettre l'accès à des baies de bagages dont certains modèles d'autobus sont munis. Un autre garde aussi mobile est situe sous la descente de la porte d'embarquement de l'autobus et bloque l'accès sous la porte. Un troisième élément de sécurité est un bras d'èloignement avec une extension vers le sol empêchant l'accès sous le bras lorsque les écoliers le contournent pour passer devant l'autobus. Tous ces accessoires sont actionnés par le conducteur au moyen d'un commutateur ajouté au tableau de commande du véhicule et sont déployés simultanément par le conducteur lorsqu'il immobilise son véhicule pour prendre ou laisser des écoliers.ACCURATE A set of adaptable safety devices on school buses including retractable guards powered by cylinders attached to an accumulator with driver level control comprising: a panel guard having a movable part used to block access under the side right of the bus from the back to the boarding gate or to the front wheel. The panel guard is easily and quickly removable to facilitate maintenance as well as that of the vehicle or to allow access to the luggage bays with which some bus models are fitted. Another also mobile guard is located under the descent from the boarding gate of the bus and blocks access under the door. A third safety element is a remote arm with an extension towards the ground preventing access under the arm when schoolchildren bypass it to pass in front of the bus. All these accessories are activated by the driver by means of a switch added to the vehicle control panel and are deployed simultaneously by the driver when he immobilizes his vehicle to pick up or leave schoolchildren.

Description

~98937 M~MOIRE DE5CRI~TIF 3DRP863~.TEX
TITRE: ~arrière de sécurite pour les autobus affectés au transport scolaire.
C~MP DE L'INVENTION
Cette invention appartient au domaine des accessoires de securit~ installes sur les autobus affectés au transport scolaire et plus particulièrement aux moyens utilisés pour bloquer les accès possibles sous les autobus et pour eloigner les écoliers du devant de l'autobus lors de l'embarquement et du debarquement des ecoliers.
R~SUM~ DE L'~RT ~NT~RIEUR
Typique des accessoires de sécurité présents est un bras d'éloignement montre dans le brevet canadien 102B72B à la page 2.1 FIG.l. On peut constater que le bras en position élevée peut obstruer la vue du conducteur. Des risques de blessures à la tete des jeunes écoliers sont possibles du fait que la barrière ll se deplace dans un plan vertical, de haut en bas indique par la fleche, advenant que le conducteur actionne le mécanisme alors qu'un ecolier s'approche de l'autobus sans qu'il ne l'ait apersu.
Enfin, la pose de la barriere necessite une coupe dans le pare-chocs avant du véhicule.
Un autre exemple de bras d'éloignement est illustre dans le brevet americain US 4,956,630 en page frontispice où on voit que bien que le bras 16 se déplace dans un plan horizontal, cependant le bras en question est fixe au niveau du pare choc et ainsi offre un acces tentant pour les ieunes enfants téméraires qui voudraient s'aventurer au dessous pour prendre un racourci. De plus, il n'y a aucune protection sur le cOté droit de l'autobus, pas plu5 que 50US la descente du véhicule. ~ 98937 M ~ MOIRE DE5CRI ~ TIF 3DRP863 ~ .TEX
TITLE: ~ rear security for buses assigned to School transportation.
C ~ MP OF THE INVENTION
This invention belongs to the field of accessories for safety installed on buses used for school transport and more particularly to the means used to block possible access under buses and to keep schoolchildren away from in front of the bus when boarding and disembarking schoolchildren.
R ~ SUM ~ OF ~ RT ~ NT ~ RIEUR
Typical of the safety accessories present is an arm shown in Canadian patent 102B72B on page 2.1 FIG.l. We can see that the arm in the raised position can obstruct the driver's view. Risk of injury to the head young schoolchildren are possible because the barrier ll is moves in a vertical plane, from top to bottom indicated by the arrow, if the driver activates the mechanism then that a schoolboy approaches the bus without having noticed it.
Finally, the installation of the barrier requires a cut in the barrier vehicle front impact.
Another example of the distance arm is illustrated in the US patent US 4,956,630 on the front page where we see that although the arm 16 moves in a horizontal plane, however the arm in question is fixed at the bumper and thus offers a tempting access for young reckless children who would like venture below to take a shortcut. In addition, there is no protection on the right side of the bus, not more than 50US the descent of the vehicle.

2~893r~) On peut également mentionner le brevet américain 5,148,886 presentant aux FIG. 1 en page 1 de 12, FIG. 3 en page 2 de 12 et FIG. 10 en page 7 de 12 des panneaux protecteurs destinés stopper le véhicule au moyen du déplacement d'un garde advenant qu'un obstacle comme une bicyclette d'enfant touche au garde et le déplace mais l'obstacle en question peut difficilement ~tre une forme humaine.
Enfin le brevet US 4,825,192 --FIG.lb--présEnte une barriere qui sert à forcer l'arr~t de la circulation lors de l'embarquement et du d~barquement des ecoliers mais n'emp~che pas les écoliers eux-m~mes de passer en avant de l'autobus.

OEIJECTIFS DE L' INVENTION
La présente invention a pour objet des accessoires permettant d'ameliorer les systèmes existants afin d'assurer la sécurité des écoliers utilisant le transport scolaire pour se rendre à l'école et plus précisément pour emp~cher qu'un enfant tombe ou né glisse sous le véhicule.
Un objectif de la presente invention est de fournir un moyen de bloquer l'accès par le cOté droit sous l'autobus~ depuis l'arrière du véhicule jusqu'à la roue avant dans le cas des autobus avec un devant plat, et depuis l'arrière du vehicule jusqu'a la porte d'embarquement dans le cas des autobus avec un devant allongé. Un objectif en parallèle est de fournir un moyen de bloquer l'accès sous la descente de l'autobus pour les deux 2S types de véhicule ~à nez plat et allonge). Un objectif parallèle ...~ .
est de fournir un moyen d'éloigner les enfants du devant de l'autobus lorsqu'ils ont à traverser le chemin pour se rendre à
leur domicile.
Un autre obiectif est de procurer par le biais du bras d'éloignement de l'avant une meilleure visibilite des enfants qui ~Og~937 passent devant le bras avant du véhicule.
Un cinquième objectif est de fournir des systemes de protection mobiles actionnés par le conducteur au moyen d'un commutateur ou tirette ajoutée a son panneau de commande, systemes qui se déploient lorsque le conducteur immobilise son véhicule et tire son commutateur et qui se rétractent lorsque le conducteur repousse son commutateur et reprend sa route.
Un sixieme objectif est de fournir un moyen de prise sur le ch~ssis de l'autobus qui permettrait de retirer rapidement les accessoires de sécurité lors de l'entretien des dispositifs eux-m~mes ou du véhicule.
Un septieme objectif est d'accrocher de façon amovible sur le ch~ssis de l'autobus un premier garde en panneau coussiné sur le caté droit du vehicule, celui où descend les ecoliers, un autre lS garde situé sous la descente qu'empruntent les usagers et un bras d'éloignement avec un prolongement vertical vers le sol, bras fixé
sur le devant de l'autobus, chaque garde ayant des parties mobiles, et comprenant des moyens d'installer ou de retirer rapidement le protecteur coussiné du premier garde en panneau, et Z0 que les déplacements des parties mobiles des gardes puissent ~tre realises à partir de la console du conducteur et au moyen du systeme d'alimentation en air comprime existant sur l'autobus .
Un objectif géné~ral est de fournir un dispositif de sécurit~
adaptable sur un autobus affecte au transport scolaire comprenant~
un garde en panneau s'adressant au ch~ssis du cOté droit et comprenant un b~ti fixe et un b~ti mobile, des moyens pour fixer le b~ti fixe de façon amovible sur le ch~ssis; des m~yens de déplacement vertical guidé de haut en bas du b~ti mobile sur le b~ti fixe; des moyens moteurs pour déplacer le b~ti mobile depuis la position du haut jusqu'à la position du bas et de retour;

~98937 des moyens de sécurité agissant en coopération avec les moyens de déplacement et les moyens moteurs.
DESSINS
On décrira en detail ci-apres, à titre indicatif et nullement limitatif, des dispositifs conformes à la présente invention en référence au dessin annexé sur lequel:
FIG.1 est une perspective d'un autobus avec ne~ plat.
FIG.lA est une vue de côté d'un autobus avec ne~ allongé.
FIG.2 est une vue du cOté droit de l'autobus de la FIG.1 montrant les dispositifs de securité rétractés.
FIG.3 est une vue du cOté droit de l'autobus de la FIG.1 montrant les dispositifs de sècurité deployes.
FIG.4 est une vue de l'arrière du l'autobus montrant le garde en panneau en position r~tractée.
lS FIG.4Q est un détail en coupe de la FIG.4.
FIG.4~ est un détail en coupe de la FIG.4~.
FIG.5 est une vue de l'arrière de l'autobus montrant le garde en panneau en position deployée.
FIG.6 est une vue de profil des attaches du garde en panneau.
ZO FIG.7 est une vue de plan des attaches de la FIG.6.
FIG.8 et FIG.8~ sont respectivement une vue en elevation et une coupe en plan du système de glissieres du garde en panneau.
FIG.9 est une vue en élevation du garde de la descente.
FIG.9~ est un detail en coupe de la FIG.9.
Z5 FIG.10 est une vue en elevation du bras d'éloignement en position rétracte.
FIG.10~ est une vue de dessous d'un detail de la FIG.10.
FIG.lOB est une vue de cOte d'un detail de FIG.10.
DESCRIPTION DE L'INVENTION
La realisation préféree de l'invention est illustrée a la 2~9g~7 figure 1 ..FIG.l..o~ les m~mes éléments caracterisants sont identifies par les m~mes numéros et où on voit un autobus 20 ayant un avant Z2 et un arrière 24, un côt~ gauche Z6 et un côté droit 28, un haut 30 et un bas 3Z , une zone d'embarquement 34 comprenant une porte 36 et une descente de passagers 38 avec un marche-pied 40, des roues avants 4Z et des roues arrieres 44 et un pare-chocs avant 46, autobus sur lequel se greffent trois dispositifs de sécurit~.
Le premier est un garde en panneau 48 servant ~ bloquer un accès possible 50 sous l'autobus Z0 par le côté droit Z8 depuis l'arrière Z4 du véhicule iusqu'à la roue avant 4Z dans le cas des autobus avec un devant plat, et depuis l'arrière Z4 du véhicule iusqu'à la porte d'embarquement 36 dans le cas des autobus avec un devant allongé puisque la roue avant des autobus à devant allong~..FIG.l~..se situe entre le devant de l'autobus et la porte d'embarquement. J'ai constaté en v~rifiant sur plusieurs modèles fabriqués par la compagnie americaine ~lue ~ird que la distance entre le bas 3Z de l'autobus Z0 et le sol 5Z formant l'accès 50 du côté droit 28 mesure entre 18,5 et 21,5 pouces de hauteur selon les modeles et les années de fabrication des véhicules.
Le second dispositif de securite est un deuxieme garde 54 situé sous la descente 38 de l'autobus Z0 et servant ~ bloquer un deuxième accès possible 56 sous la descente 38.
Le troisième dispositif est un bras d'éloignement 58 avec un prolongement vertical 60 vers le sol emp~chant un troisième accès 62, bras qui est relié au devant 22 du cOte droit 28 du véhicule par une charnière 64, la charnière 64 étant fixee au pare-chocs avant 46 de l'autobus 20.
En detail, le premier garde en panneau 48..FIG.2..,servant à
bloquer l'acces 50 sous le vehicule par le cOté droit 28, est ~98937 constitue d'une partie fixe 66..FIG.3..ayant un avant 68..FIG.4..et un arrière 70 et d'une partie mobile 72 ..FIG.5..ayant egalement un avant 74 et un arri~re 76. Des oeillets 78..FIGS.4, 6 et 7 ..sont préalablement fixes au ch~ssis 80 de l'autobus sur le côté droit 28 du vehicule. Des fixations 82..FIGS.S, 6 et 7..sont soudées a l'arriere 70..FIG.4..de la partie fixe 66 du garde en panneau et sont unies aux oeillets 78 au moyen de goupilles 84 ou autres organes de liaison faciles et rapides à démonter ce qui fixe l'ensemble du garde en panneau 48 au ch3ssis 80 du cOte droit 28.
Le b3ti fixe 66..FIG.3..du garde en panneau 4B est fabriqué
de tubes d'aluminium à section transversale rectangulaire ..FIG.8A..avec des longerons horizontaux 86..FIG.3..et des parties verticales 88. Le b3ti fixe 66 est assemblé de fason a former deux zones rectangulaires 90 et q2. Les parties verticales 88 de l^avant ~8 du b3ti fixe 66 ont des ouvertures ou fentes 94 ..FIG.8A..formant des glissières 96 situées sur chaque extrémité
et au centre du b~ti fixe 66 et destinées a recevoir des roulettes 98. Ces roulettes 98 sont montees rotatives sur une tige fileté
montée sur la partie mobile 7Z du garde en panneau. Le b3ti mobile 72 est de m~mes dimensions et fabrique avec les m~mes materiaux que le b3ti fixe 66 sans toutefois posseder de fentes. Le b3ti mobile 72 est guidé dans son mouvement de descente et de montée par le biais des roulettes 98..FIG.8~..insérées dans les glissières 96. Les fentes ~4 des glissieres 96 sont couvertes préferablement d'un caoutchouc fendu 100 pour emp~cher la saleté
de s'infiltrer a l'intérieur de la glissiere 96 et entraver le bon fonctionnement du mécanisme.
~u haut 102 du b~ti fixe 66..FIG.3..et centralement par rapport a chacune des zones 90 et 92, sont installés des verins à

209~37 double action 104 et 106 ayant une partie superieure 108..FIG.5..
et une partie inférieure llO..FIG.4~.. Le verin 104 qui a géneralement une course de 15 pouces est libre dans sa partie supérieure 108 et est ins~ré dans sa partie inférieure 110, celle o~ une tige 112 apparaît, dans une fixation 114 ayant une forme arondie 116. La fixation 114 ..FIG.5..est soudée au b3ti fixe bb du garde en panneau 48 et pareillement pour l'autre vérin 106 ..FIG.3.. La tige 112..FIG.4~A..est fixée au haut llB du b3ti mobile 72 par soudure ou autrement. Lorsque le conducteur actionne le mécanisme, les vérins 104... FIG.3.. et 106 amorcent leur course et mettent en mouvement le b~ati mobile 72 vers le bas q~i viendra refermer l'acces 50..FIG.2..sous l'autobu6, sur son cOté droit 28 ..FIG.3.. La course des verins 104 et 106 est ajustable selon la hauteur voulue et limitée par un arr~t 120..FIG.8..place dans la glissiere 96. Le garde en panneau peut ~tre installe un peu plus bas que le bas 32..FIG.2..de l'autobus afin de ne laisser qu'une ouverture o~ acces 50..FIG.3..d'au maximum trois pouces entre le bas 122 du b~ti mobile 72 et le sol 52 lorsque la partie mobile 72 est abaissée. Le fluide moteur des vérins est préférablement de l'air puisé d'un accumulateur place sous l'autobus et uni au système pneumatique existant du véhicule mais peut aussi ~tre de l'huile. Des moteurs électriques peuvent aussi ~tre employés pour mouvoir les parties mobiles des dispositifs de securite au moyen, par exemple, d'un pignon monté sur un fond demi-lune llb et d'une cremaillère disposée dans le m~me axe que la tige du vérin.
Un protecteur coussine lZ4..FIG.3..enveloppe la partie mobile 72 du garde en panneau 48. Le moyen de fixation du protecteur coussiné 124 au bati mobile 72 peut ~tre des boutons à pression ou du velcro ou tout autre moyen rapide d'assemblage et de démontage afin que le protecteur coussiné 124 puisse ~tre retire facilement 2~98937 du b~ti mobile 72 pour l'entretien ~nettoyage ou mécanique) du véhicule DU du garde en panneau ou bien pour permettre un accès a des baies de bagages situeQ~au bas 32..FIG.l..sur le côté droit ze dont certains modèles d'autobus de la compagnie américaine Blue ~ird sont équipés.
Un autre garde 54..FIG.9..ou garde-descente est installé au bas 126 de la descente 3Z où il y a un second accès 56 et comprend un b~ti 128 ayant un c~t~ droit 130 (face au dessin) et un côté
gauche 132, un filet protecteur 134 et une charnière 136.. FIG.~.. situee entre le marche-pied 40 de la descente 38 et le garde-descente 54. Un cylindre pneumatique à double action 138 comprenant une tige 140 est fixe 139 50US la descente 38. La tige 140 du cylindre 138 reioint le b~ti 128 du garde-descente 54 dans son cOté gauche 132 et ce, deux ou trois pouces plus bas que la charnière 136. L'axe de la tige 140 est place a angle par rapport au côte gauche 132 du b~ti 128 afin de permettre le pivotement autour de la charnière 136. Le circuit pneumatique utilise est le m~me que celui du garde en panneau et relie a un accumulateur 142.
Qinsi, lorsque le conducteur ferme le circuit pneumatique, la tige Z0 140 du vérin 138 entreprend sa course et pousse sur le c~te gauche 132 du bati 128 du garde-descente 54 et fait pivoter l'ensemble du garde 54 autour de la charnibre 136 iusqu`à ce qu'il soit en position verticale par rapport au sol 52 et qu'il bloque l'acces 56 situe sous la descente 38 de l'autobus 20.
Le troisieme dispositif de sécurite consiste en un bras d'éloignement 58..FIG.3..composé d'un cadre mobile 144..FIG.10..
ayant un c~t~ droit 146 (face au dessin)..FIG.lO..et un câté
gauche 148, un haut lS0 et un bas 15Z, d'une charnière 64 verticale attachée au pare-chocs avant 46, le cadre mobile 144 étant attaché en penture sur son côté gauche 148 au moyen d'une ~098937 tige 154 ~ la charniere 64. Une extension ou prolongement vertical 60 est reliee au bas 15Z du cadre mobile 144 a l'aide d'un anneau 156..Fig.lOB..L'anneau 156 est soude sur l'extension 60 et enroule le bas 152 du cadre mobile 144.Une plaque 158 est soudée sur S l'anneau 156. Un petit verin 160 ayant une tige 162 et une partie supérieure 164 est attache au côté droit 146 selon FIG.10 du cadre mobile 144 dans sa partie supérieure 164 et rejoint la plaque 158 de l'anneau 156 au moyen de sa tige 162. Lorsque le conducteur actionne le commutateur, la tige 162 du verin 160 entreprend sa course et pousse sur la plaque 158 soudée a l'anneau 156 et également soudee au b~ti de l'extension 60 en faisant pivoter l'extension 60 iusqu'a une position perpendiculaire au sol 52. En position rétractée, le prolongement vertical 60 est parallèle au sol 5Z. Le cadre mobile 144..FIG.3..et l'extension 60 sont lS recouverts d'un filet protecteur 168. L'extension 60 emp~che l'accès 6Z sous le bras d'éloignement 58 lorsque des écoliers contournent le devant de l'autobus. Un clignotant 170 est installé
sur le haut lSO du cOte droit 146 du cadre mobile 144 et est connecté en parallele sur le circuit électrique existant des feux d'arr~t 172..FIG.lO..du vehicule.
Un cylindre pneumatique à double action 174..FIG.lO~..ayant une tige 176 est fixé sous le pare-chocs avant 46 du véhicule ou à
un appendice 178 de la charnière 64. La tige 176 du cylindre 174 est fixée au bas 152 du cadre mobile 144 a quelques pouces de la charnière 64. L'axe de la tige 176 est placé a angle par rapport au bas 152 du cadre mobile 144. Le circuit pneumatique utilisé est le m~me que celui du garde en panneau. ~insi, lorsque le conducteur ferme le circuit pneumatique, la tige 176..FIG.lO~..du verin 174 entreprend sa course et pousse sur le bas 152 du cadre mobile 144 faisant pivoter l'ensemble du bras d'eloignement 58 2~8937 autour de la charniere ~* jusqu'à une position a 90 degrés par rapport au devant ZZ de l'autobus ZO forSant ainsi les ecoliers a s'éloigner du devant 22 de l'autobus ZO avant de traverser le chemin.
Tous les accessoires ci-haut décrits peuvent ~tre de dimensions variables pour s'adapter sur des autobus de plu5 petites ou de plus grandes dimensions que les autobus standards.
~UT~ES P~5SIBILIT~S DE R~LIS~TIONS
Il est bien entendu que le mode de réalisation de la présente invention qui a éte decrit ci-dessus, en référence aux dessins ;~
annexes, a ete donne a titre indicatif et nullement limitatif et que des modifications et adaptations peuvent ~tre apportées sans que l'on s'écarte pour autant du cadre de la presente invention. ;
Par exemple le garde en panneau peut prendre la forme d'un store comme b~ti mobile avec enroulement et dont le b~ti fixe est un moyen de fixation verticale par exemple avec deux canalisations ouvertes aux bordures et où les moyens de déplacement sont entre autres un petit moteur actionné par l'opérateur de l'autobus.
D'autres realisations sont possibles et limitées seulement ZO par l'etendue des revendications qui suivent: 2 ~ 893r ~) One can also mention the American patent 5,148,886 presenting in FIG. 1 on page 1 of 12, FIG. 3 on page 2 of 12 and FIG. 10 on page 7 of 12 of the protective panels intended stop the vehicle by moving a guard in the event an obstacle like a child's bicycle affects the guard and the moves but the obstacle in question can hardly be a human form.
Finally the US patent 4,825,192 --FIG.lb - presents a barrier which is used to force traffic to stop when boarding and disembarking schoolchildren but does not prevent schoolchildren themselves to pass in front of the bus.

OBJECTIVES OF THE INVENTION
The present invention relates to accessories allowing improve existing systems to ensure the security of school children using school transport to get to school and more precisely to prevent a child falling or born slipping under the vehicle.
An objective of the present invention is to provide a means block access from the right side under the bus ~ from the rear of the vehicle to the front wheel in the case of bus with a flat front, and from the rear of the vehicle to the boarding gate in the case of buses with a elongated front. A parallel objective is to provide a means block access under the bus descent for both 2S types of vehicle ~ with flat nose and extension). A parallel objective ... ~.
is to provide a way to keep children away from the front of the bus when they have to cross the path to get to their home.
Another objective is to provide through the arm distance from the front better visibility of children who ~ Og ~ 937 pass in front of the front arm of the vehicle.
A fifth objective is to provide mobile protection activated by the driver by means of a switch or pull tab added to its control panel, systems which deploy when the driver immobilizes his vehicle and pulls its switch and that retract when the driver pushes the switch and goes on.
A sixth objective is to provide a means of control over the frame of the bus which would allow the rapid removal of safety accessories when servicing the devices themselves m ~ my or vehicle.
A seventh objective is to hang removably on the ch ~ ssis of the bus a first guard in cushioned panel on the right caté of the vehicle, that where the schoolchildren descend, another lS guard located under the descent taken by the users and an arm away with a vertical extension towards the ground, arm fixed on the front of the bus, each guard having parts mobile, and including means for installing or removing quickly the cushioned protector of the first panel guard, and Z0 that the movements of the mobile parts of the guards can be performed from the driver's console and using the compressed air supply system existing on the bus.
A general objective is to provide a safety device adaptable on a bus assigned to school transport including ~
a panel guard for the right side and comprising a fixed b ~ ti and a mobile b ~ ti, means for fixing the b ~ ti removably fixed on the ch ~ ssis; m ~ yen of guided vertical movement from top to bottom of the mobile b ~ ti on the b ~ ti fixed; motor means for moving the mobile b ~ ti from the top position to the bottom position and back;

~ 98937 security means acting in cooperation with the means of displacement and motor means.
DRAWINGS
We will describe in detail below, for information and in no way limiting, devices in accordance with the present invention in reference to the attached drawing in which:
FIG.1 is a perspective of a bus with ne ~ flat.
FIG.lA is a side view of a bus with ne ~ extended.
FIG.2 is a view of the right side of the FIG.1 bus showing the safety devices retracted.
FIG.3 is a view of the right side of the FIG.1 bus showing deployed security features.
FIG. 4 is a view of the rear of the bus showing the panel guard in the pulled position.
lS FIG.4Q is a detail in section of FIG.4.
FIG.4 ~ is a detail in section of FIG.4 ~.
FIG. 5 is a view of the rear of the bus showing the guard in panel in the deployed position.
FIG. 6 is a side view of the panel guard fasteners.
ZO FIG.7 is a plan view of the fasteners of FIG.6.
FIG.8 and FIG.8 ~ are respectively an elevation view and a cross-section through the panel guard system of slides.
FIG. 9 is an elevation view of the guard of the descent.
FIG.9 ~ is a detail in section of FIG.9.
Z5 FIG.10 is an elevation view of the remote arm in retracted position.
FIG.10 ~ is a bottom view of a detail of FIG.10.
FIG.lOB is a side view of a detail of FIG.10.
DESCRIPTION OF THE INVENTION
The preferred embodiment of the invention is illustrated in the 2 ~ 9g ~ 7 figure 1 ..FIG.l..o ~ the m ~ my characterizing elements are identified by the same numbers and where we see a bus 20 having a front Z2 and a rear 24, a left side Z6 and a right side 28, a high 30 and a low 3Z, a boarding area 34 comprising a door 36 and a passenger descent 38 with a step 40, front wheels 4Z and rear wheels 44 and a front bumper 46, bus on which three are grafted security devices.
The first is a panel guard 48 used to block a possible access 50 under bus Z0 from the right side Z8 from the rear Z4 of the vehicle up to the front wheel 4Z in the case of bus with a flat front, and from the rear Z4 of the vehicle up to boarding gate 36 in the case of buses with a elongated front since the front wheel of buses in front long ~ ..FIG.l ~ ..located between the front of the bus and the door boarding. I found by checking on several models made by the american company ~ read ~ ird that the distance between the bottom 3Z of the bus Z0 and the ground 5Z forming the access 50 of the right side 28 measures between 18.5 and 21.5 inches tall depending on vehicle models and years of manufacture.
The second security device is a second guard 54 located under descent 38 of the Z0 bus and used to block a second possible access 56 under the descent 38.
The third device is a remote arm 58 with a vertical extension 60 towards the ground preventing a third access 62, arm which is connected to the front 22 of the right side 28 of the vehicle by a hinge 64, the hinge 64 being fixed to the bumper before 46 of bus 20.
In detail, the first panel guard 48..FIG.2 .., used to block access 50 under the vehicle by right side 28, is ~ 98937 consists of a fixed part 66..FIG.3..having a front 68..FIG.4..and a rear 70 and a movable part 72 ..FIG.5..has also a front 74 and a rear 76. Des eyelets 78..FIGS.4, 6 and 7 ..are previously fixed to the frame 80 of the bus on the right side 28 of the vehicle. Fasteners 82..FIGS.S, 6 and 7..are welded to the rear 70..FIG.4..from the fixed part 66 of the panel guard and are joined to the eyelets 78 by means of pins 84 or other easy connecting members and quick to dismantle which fixes the entire panel guard 48 to chassis 80 on the right side 28.
The fixed b3ti 66..FIG.3..of the panel guard 4B is manufactured aluminum tubes with rectangular cross section ..FIG.8A..with horizontal beams 86..FIG.3..and parts vertical 88. The fixed b3ti 66 is assembled in a two-way fashion rectangular areas 90 and q2. The vertical parts 88 of the front ~ 8 of the fixed b3ti 66 have openings or slots 94 ..FIG.8A..forming slides 96 located on each end and in the center of the fixed b ~ ti 66 and intended to receive casters 98. These 98 casters are rotatably mounted on a threaded rod mounted on the movable part 7Z of the panel guard. Mobile b3ti 72 is the same size and made with the same materials that the b3ti fixes 66 without however having slots. The b3ti mobile 72 is guided in its down and up movement by means of the casters 98..FIG.8 ~ ..inserted in the slides 96. The slots ~ 4 of the slides 96 are covered preferably a split rubber 100 to prevent dirt to infiltrate inside the slide 96 and hinder the good operation of the mechanism.
~ u high 102 of b ~ fixed ti 66..FIG.3..and centrally by in relation to each of zones 90 and 92, cylinders are installed at 209 ~ 37 double action 104 and 106 having an upper part 108..FIG.5 ..
and a lower part llO..FIG.4 ~ .. The jack 104 which has generally a 15 inch stroke is free in its part upper 108 and is ins ~ re in its lower part 110, that o ~ a rod 112 appears, in a binding 114 having a shape rounded 116. The fixing 114 ..FIG.5..is welded to the fixed b3ti bb of the panel guard 48 and similarly for the other cylinder 106 ..FIG.3 .. The rod 112..FIG.4 ~ A..is fixed to the top llB of the b3ti mobile 72 by welding or otherwise. When the driver operates the mechanism, the jacks 104 ... FIG. 3 .. and 106 start their stroke and set the moving b ~ ati 72 down q ~ i will come close the access 50..FIG.2..under the autobu6, on its right side 28 ..FIG.3 .. The stroke of cylinders 104 and 106 is adjustable according to the desired height and limited by a stop ~ 120..FIG.8..place in the slide 96. The panel guard can be installed a little more bottom than bottom 32..FIG.2..of the bus in order to leave only one opening o ~ access 50..FIG.3..maximum three inches between the bottom 122 of the movable b ~ ti 72 and the ground 52 when the movable part 72 is lowered. The actuating fluid of the cylinders is preferably the air drawn from an accumulator placed under the bus and united with the vehicle's existing pneumatic system but can also be ~
oil. Electric motors can also be used to move the moving parts of the safety devices by means, for example, a pinion mounted on a half-moon bottom llb and a rack arranged in the same axis as the cylinder rod.
A cushion protector lZ4..FIG.3..wraps the moving part 72 of the panel guard 48. The means of fixing the protector cushioned 124 to the movable frame 72 can be press buttons or Velcro or any other quick means of assembly and disassembly so that the cushion protector 124 can be easily removed 2 ~ 98937 mobile ~ 72 mobile for maintenance ~ cleaning or mechanical) DU vehicle of the guard in panel or to allow access to luggage bays locatedQ ~ at the bottom 32..FIG.l..on the right side ze including some models of buses from the American company Blue ~ ird are equipped.
Another guard 54..FIG.9..or guard-descent is installed at the bottom 126 of the descent 3Z where there is a second access 56 and includes a b ~ ti 128 having a right c ~ t ~ 130 (facing the drawing) and one side left 132, a protective net 134 and a hinge 136 .. FIG. ~ .. located between the step 40 of the descent 38 and the lowering guard 54. A double action pneumatic cylinder 138 comprising a rod 140 is fixed 139 50US the descent 38. The rod 140 of the cylinder 138 reioint the b ~ ti 128 of the lowering guard 54 in its left side 132 and this, two or three inches lower than the hinge 136. The axis of the rod 140 is placed at an angle with respect to on the left side 132 of the b ~ ti 128 to allow pivoting around the hinge 136. The pneumatic circuit used is the same as that of the panel guard and connects to an accumulator 142.
When the driver closes the pneumatic circuit, the rod Z0 140 of the jack 138 begins its stroke and pushes on the left side 132 of frame 128 of the lower guard 54 and rotates the entire keep 54 around the hinge 136 until it is in vertical position with respect to the ground 52 and that it blocks access 56 located under the descent 38 of the bus 20.
The third safety device consists of an arm 58..FIG.3..composed with a mobile frame 144..FIG.10 ..
having a right c ~ t ~ 146 (opposite the drawing) .. FIG.lO..and a side left 148, top lS0 and bottom 15Z, hinge 64 vertical attached to the front bumper 46, the movable frame 144 being attached as a hinge on its left side 148 by means of a ~ 098937 rod 154 ~ the hinge 64. A vertical extension or extension 60 is connected to the bottom 15Z of the movable frame 144 using a ring 156..Fig.lOB..Ring 156 is welded on extension 60 and wound the bottom 152 of the movable frame 144. A plate 158 is welded to S the ring 156. A small cylinder 160 having a rod 162 and a part upper 164 is attached to the right side 146 according to FIG.10 of the frame mobile 144 in its upper part 164 and joins the plate 158 of the ring 156 by means of its rod 162. When the conductor actuates the switch, the rod 162 of the actuator 160 undertakes its run and push on the plate 158 welded to the ring 156 and also welded to the b ~ ti of extension 60 by rotating the extension 60 up to a position perpendicular to the ground 52. In retracted position, the vertical extension 60 is parallel to the ground 5Z. The mobile frame 144..FIG.3..and the extension 60 are lS covered with a protective net 168. The extension 60 prevents access 6Z under the remote arm 58 when schoolchildren go around the front of the bus. A flashing 170 is installed on the top lSO of the right side 146 of the movable frame 144 and is connected in parallel on the existing electrical circuit of the lights stop ~ 172..FIG.lO..of the vehicle.
A pneumatic double action cylinder 174..FIG.lO ~ .. having a rod 176 is fixed under the front bumper 46 of the vehicle or to an appendix 178 of the hinge 64. The rod 176 of the cylinder 174 is attached to the bottom 152 of the movable frame 144 a few inches from the hinge 64. The axis of the rod 176 is placed at an angle with respect to at the bottom 152 of the movable frame 144. The pneumatic circuit used is the same as that of the panel guard. ~ so, when the conductor closes the pneumatic circuit, rod 176..FIG.lO ~ ..du verin 174 begins its race and pushes on the bottom 152 of the frame mobile 144 rotating the entire remote arm 58 2 ~ 8937 around the hinge ~ * to a 90 degree position by report to the front ZZ of the bus ZO thus forcing the schoolchildren to move away from the front 22 of the ZO bus before crossing the path.
All the accessories described above can be ~
variable dimensions to fit on larger buses smaller or larger than standard buses.
~ UT ~ ES P ~ 5SIBILIT ~ S DE R ~ LIS ~ TIONS
It is understood that the embodiment of the present invention which has been described above, with reference to the drawings; ~
appendices, has been given as an indication and in no way limitative and that modifications and adaptations can be made without that we depart from the framework of the present invention. ;
For example the panel guard can take the form of a blind as movable b ~ ti with winding and whose fixed b ~ ti is a vertical fixing means, for example with two pipes open at the edges and where the means of movement are between others a small engine powered by the bus operator.
Other realizations are possible and limited only ZO by the scope of the following claims:

Claims

Achievements about which a right of privilege is claimed are defined as follows:

1. A safety device adaptable to an affected bus for school transport, said bus comprising a right side and a chassis, said device comprising:
- a panel guard for said chassis on said right side and comprising a fixed frame having a top and a bottom and a frame mobile having a top and a bottom;
- Means for fixing said fixed frame removably on said chassis;
- means for vertical displacement of said movable frame on said fixed frame;
- Means for guiding said movement from top to bottom;
- motor means for moving said movable frame from the top position to bottom position and back;
- security means in cooperation with said means of displacement and said motor means.

2. A security device as defined in claim 1 the fixed frame of which has a front and a rear, a top and a bottom, left and right side, two first and second uprights arranged at the left and right ends and a third upright centrally disposed, said third upright separating said frame fixed in two rectangular areas, said uprights left, right and central of said fixed frame having all three in said part before said means for guiding.

3. A security device as defined in claim 2 whose means for guiding are slides.

4. A security device as defined in claim having a movable frame comprising a front and a rear, a top and a bottom, two uprights at the left and right ends and a centrally disposed upright separating said movable frame in two rectangular areas corresponding to said rectangular areas said fixed frame and means for covering said movable frame.

5. A security device as defined in claim 1 whose means for fixing said fixed frame comprise means eyelets fixed to said chassis and anchoring means located on said rear part of said fixed frame and intended to be hung to said eyelet means.

6. A security device as defined in claim 5 whose means of eyelets are five in number.

7. A security device as defined in claim 2 of which said fixed frame comprises means for fixing to said top of said fixed frame intended to receive said displacement means vertical and projecting outwards from said part before said fixed frame.

8. A security device as defined in claim 7 the fixing means of which comprise a shaped shell hemispherical.

9. A security device as defined in claim 1 whose means of moving up and down the movable frame are cylinders.

10. A security device as defined in claim 2 whose means for guiding are openings arranged on said uprights and facing said movable frame, said frame mobile comprising sliding means fixed to said part rear of said movable frame and intended to be inserted into said slides of said fixed frame.

11. A security device as defined in claim 10 the sliding means of which are casters fixed to the frame movable with respect to said slides.

12. A security device as defined in claim 1 the drive means of which are pneumatic cylinders, comprising cylinders and rods, said cylinders being supplied at even the bus air accumulator and operated by a switch.

13. A security device as defined in claims 8 and 12 whose cylinders are installed centrally relative to to said areas in and above said hemispherical shells and whose rods are installed mobile from the position of the top, at the level of the shells, to the bottom position.

14. A security device as defined in claim 13 whose bottom position coincides with a position of the movable frame directed towards and near the ground.

15. A security device as defined in claim 1 whose security means in cooperation with said means of displacement and said motor means are a switch entrusted to the bus operator for operation during the children's descent and a check valve means for prevent air leakage.

16. A security device as defined in claim 12 whose pneumatic cylinders are double acting and include an upper part, a lower part and a rod on the side of said lower part.

17. A safety device adaptable to a bus assigned to school transport, said bus comprising a right side, a chassis, a lowering and a front bumper, said device including three panel guards, one of which is aimed said chassis on said right side, a second is intended for said lowering and a third is aimed at said front bumper, the device comprising:
- a first panel guard consisting of:
- five means of eyelets fixed to said chassis of said bus;
- a fixed frame having a front and a back, a top and a bottom, two first and second uprights arranged at the ends left and right and a third upright arranged centrally, said third upright separating said fixed frame into two zones rectangular, said left, right and central uprights of said fixed frame having all three in said part before an opening forming a slide;
- five anchoring means located on said rear part of said fixed frame and intended to be attached to said means carnations;
- two vertical displacement means comprising rods oriented towards said bottom of said fixed frame and located in the center said rectangular areas on said top of said fixed frame;
- adapters for said vertical displacement means attached to said top of said fixed frame and projecting towards the exterior of said front portion of said fixed frame;
- a movable frame having a front and a rear, a top and a bottom, two uprights at the left and right ends and one upright centrally arranged separating said movable frame into two zones rectangular;
- sliding means fixed to said rear part of said movable frame and intended to be inserted into said slides said fixed frame;
- a protective covering fixed to said movable frame by rapid assembly means;
- means for fixing to said top of said movable frame intended to receive said means of movement;

- descent protection means comprising:
- a mobile frame comprising a left side and a side law and comprising means of recovery;
- a hinge connecting said frame to said descent said bus;
- a displacement means fixed at an angle relative to said side right of said frame and intended to rotate said mobile frame around said hinge;
- a means of distance to the front comprising:
- a movable frame having a top and a bottom, a left side and a right side, said movable frame comprising a means of covering and a circumferential displacement means in a horizontal plane;
- a hinge comprising means for fixing to said side right front of said bus and connected to said right side of said frame mobile and an appendage fixed to the bottom of said hinge;
- a means of vertical extension downwards;
- a means of movement attached under said front bumper of said bus or said appendage of said hinge intended to rotate, in said horizontal plane, said movable frame around said hinge.
- a means of moving said extension means vertical fixed to said right side of said movable frame intended to make pivot, in a vertical plane, said extension means vertical.

18. A safety device as defined in claim 17 including means for vertically moving said movable frame of said first panel guard are jacks double action tires comprising an upper part, a lower part and a rod on the side of said lower part.

19. A safety device as defined in claim 17 including the means for sliding said movable frame are rollers inserted in said slides.

20. A safety device as defined in claim 17 including the means for covering said movable frame is a cushioned protector.

21. A safety device as defined in claim 20 whose rapid means of assembling said cushioned protective cover are snaps or velcro.

22. A safety device as defined in claim 17 including the means for fixing said jacks tires of said panel guard are half-moon shapes intended to receive said lower part of said jacks.

23. A safety device as defined in claim 17 in which the descent protection means is a guard-descent.

24. A safety device as defined in claim 23, the displacement means of which is a jack pneumatic.

25. A safety device as defined in claim 23 including the means for covering said frame of said guardrail is a protective net.

26. A safety device as defined in claim 17 whose means of removal at the front is an arm of remoteness.

27. A safety device as defined in claim 26, the vertical extension means of which is extension to the ground having a top and a bottom and connected in said high at said bottom of said movable frame and being free at said bottom.

28. A safety device as defined in claim 27 including means for moving said extension is a pneumatic cylinder having an upper part and a part lower and acting double action.

29. A safety device as defined in claim 26, the displacement means of which is a jack tire having an upper part and a lower part and acting double action.

30. A safety device as defined in claim 10 including the means for fixing said part lower of said cylinder is said appendage connected to said hinge.

31. A set of three adaptable safety devices right side, downhill and right front of buses assigned to school transportation as defined in the claims 18, 24 28 and 29 whose means of movement use oil as the driving fluid for the cylinders.

32. A set of three adaptable safety devices right side, downhill and right front of buses assigned to school transportation as defined in the claims 18, 24 28 and 29 whose means of movement use electric motors for moving said moving parts of said security devices.