FR2759102A1 - Linear drive mechanism for retractable bollard - Google Patents

Linear drive mechanism for retractable bollard Download PDF

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Publication number
FR2759102A1
FR2759102A1 FR9701328A FR9701328A FR2759102A1 FR 2759102 A1 FR2759102 A1 FR 2759102A1 FR 9701328 A FR9701328 A FR 9701328A FR 9701328 A FR9701328 A FR 9701328A FR 2759102 A1 FR2759102 A1 FR 2759102A1
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France
Prior art keywords
carriage
stroke
balls
tube
barrel
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FR9701328A
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French (fr)
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FR2759102B1 (en
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Dominique Magne
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
    • E01F13/044—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface
    • E01F13/046—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface the obstructing members moving up in a translatory motion, e.g. telescopic barrier posts

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

The drive mechanism consists of a tubular carriage (2) with a top plate (3) supporting the bollard (13), and balls (6) round the carriage which interact with the inner walls of a sunken cylindrical housing (1) to guide the carriage as it moves between deployed and retracted positions. The power for moving the carriage is supplied by three lower gas springs (8) and an upper gas spring (9), connected to a rigid support (7) in the centre of the housing (1). The balls (6) are six in number, spaced evenly round the carriage (2) in two rows close to the upper and lower ends of the carriage and mounted on rubber bushes (5). When the carriage is in its upper position it presses against a seal (11) round the inside of a cover (14).

Description

DESCRIPTION
La présente invention concerne un mécanisme de translation linéaire pour bornes escamotables.DESCRIPTION
The present invention relates to a linear translation mechanism for retractable bollards.

Le principe même de la borne escamotable est connu, et de nombreuses villes en sont équipées pour contrôler l'accès de voies piétonnes ou parking. The very principle of the retractable bollard is known, and many cities are equipped with it to control access from pedestrian paths or parking lots.

Dans la plupart des cas, le mécanisme qui permet la translation de la borne est de conception rustique. Il s'agit souvent d'assemblage comportant beaucoup de jeu de fonctionnement, et les pièces en mouvement coulissent métal sur métal, ou dans le meilleurs des cas, plastique sur métal. Le manque d'étanchéité des systèmes proposés et leurs lieux d'implantation, font que les mécanismes sont souvent souillés par des graviers, du sable ou de la boue ceci nécessite alors des interventions fréquentes de la part des services techniques pour assurer un démontage et un nettoyage des pièces en mouvement. En outre dans le cas précis des bornes dites "semiautomatiques" la descente est assurée par l'utilisateur qui après déverrouillage enfonce la borne à l'aide du pied ; La remontée est généralement assurée par un verin autonome appelé "ressort à gaz". Afin que la partie enterrée du dispositif ne nécessite pas un terrassement trop profond, une partie du ressort à gaz vient se loger dans la borne elle-même, ce qui le rend très vulnérable en cas de choc violent appliqué à la borne, lorsque celleci est en position haute. En outre ce même choc est répercuté sur la partie mobile et les moyens de guidages, ce qui peut provoquer leur destruction. In most cases, the mechanism that allows the translation of the bollard is rustic in design. It is often an assembly with a lot of backlash, and the moving parts slide metal on metal, or in the best of cases, plastic on metal. The lack of tightness of the proposed systems and their places of installation, means that the mechanisms are often soiled by gravel, sand or mud. This then requires frequent interventions on the part of the technical services to ensure disassembly and cleaning of moving parts. Furthermore, in the specific case of so-called "semi-automatic" bollards, the descent is ensured by the user who, after unlocking, presses the bollard with the foot; The ascent is generally ensured by an independent jack called "gas spring". So that the buried part of the device does not require too deep earthwork, part of the gas spring is housed in the terminal itself, which makes it very vulnerable in the event of a violent shock applied to the terminal, when it is in the high position. In addition this same shock is passed on to the movable part and the guide means, which can cause their destruction.

L'objet de la présente invention est de remédier à ces inconvénients en proposant un mécanisme de translation linéaire pratiquement standard et pouvant supporter de nombreux types de bornes. The object of the present invention is to remedy these drawbacks by proposing a practically standard linear translation mechanism which can support many types of terminals.

Selon une réalisation préférentielle de l'invention, le mécanisme comporte:
- Un fût à sceller dans le sol, avantageusement cylindrique, ouvert à son extrémité supérieure affleurante le niveau du sol.According to a preferred embodiment of the invention, the mechanism comprises:
- A barrel to be sealed in the ground, advantageously cylindrical, open at its upper end flush with the ground level.

- Un chariot destiné à recevoir la borne muni de moyens de coulissement et de guidage à billes communément appelées "billes de manutention". - A trolley intended to receive the terminal provided with sliding and ball guide means commonly called "handling balls".

- Des rondelles épaisses en caoutchouc interposées lors de la fixation, entre les cages à billes et le corps du chariot, jouant le rôle d'amortisseurs de chocs.  - Thick rubber washers interposed during fixing, between the ball cages and the body of the carriage, acting as shock absorbers.

- Un moyen de remontée autonome du chariot comportant quatre ressorts à gaz de dimensions identiques montés sur un support de telle manière que la course totale développée par l'ensemble est égale au double de la course d'un quelconque des quatre ressorts. Ce point, particulièrement important dans l'invention sera largement développé dans la suite de la description. - A means of autonomous lifting of the carriage comprising four gas springs of identical dimensions mounted on a support so that the total stroke developed by the assembly is equal to twice the stroke of any of the four springs. This point, which is particularly important in the invention will be largely developed in the following description.

La présente invention est illustrée à l'aide des dessins annexés qui sont donnés à titre d'exemples non limitatifs.The present invention is illustrated by means of the appended drawings which are given by way of nonlimiting examples.

La figure 1 représente une coupe de l'ensemble du dispositif en position haute
La figure 2 représente le chariot équipé des billes et des rondelles épaisses en caoutchouc
La figure 3 représente le support des ressorts à gaz équipé vue de dessus
Le mécanisme de translation linéaire pour borne escamotable est composé d'un tût (1) avantageusement cylindrique, à enterrer, dont la partie haute ouverte affleure au niveau du sol, lorsque l'ensemble est installé. A l'intérieur de ce fût se déplace de manière linéaire un chariot muni de moyens de guidage, de coulissement, et d'amortissements de chocs.Figure 1 shows a section of the entire device in the high position
Figure 2 shows the trolley equipped with balls and thick rubber washers
Figure 3 shows the gas spring support fitted seen from above
The linear translation mechanism for retractable bollard is composed of an advantageously cylindrical barrel (1), to be buried, the upper open part of which is flush with the ground, when the assembly is installed. Inside this barrel moves linearly a carriage provided with guide means, sliding, and shock absorption.

Les moyens de guidage et de coulissement sont obtenus à l'aide d'au moins six billes de manutention (6). Ces billes de manutention sont des billes du commerce étanches, inoxydables et susceptibles de supporter l'immersion. Elles sont composées d'une cage métallique remplie de petites billes sur lesquelles tourne une bille de plus gros diamètre. La cage comporte à son arrière une tige filetée destinée à leur fixation sur un support. Ces billes selon la réalisation proposée sont réparties de manière équiangulaire sur deux rangées proches des extrémités inférieures et supérieures du tube (2) et rendues solidaires du dit tube (2) par l'intermédiaire des tiges filetées et d'écrous. Elles assurent alors le guidage et le coulissement. The guide and sliding means are obtained using at least six handling balls (6). These handling balls are sealed commercial balls, stainless and capable of withstanding immersion. They consist of a metal cage filled with small balls on which turns a ball of larger diameter. The cage has at its rear a threaded rod intended for their attachment to a support. These balls according to the proposed embodiment are distributed equiangularly over two rows close to the lower and upper ends of the tube (2) and made integral with said tube (2) by means of threaded rods and nuts. They then provide guidance and sliding.

Lors du montage des billes sur le chariot, à l'aide des tiges filetées et d'écrous à travers le tube (2) des rondelles épaisses en caoutchouc (5) sont interposées. Ceci constitue alors un amortisseur de chocs et également un moyen de réglage du coulissement du chariot dans le fût. En outre le chariot comporte dans sa partie supérieure un plateau (3) solidaire par soudure du tube (2). Le diamètre de ce plateau est sensiblement inférieur au diamètre intérieur du fût. En cas de choc, on comprend aisément que, les billes situées sur la rangée du haut s'effaçant légèrement, le plateau vienne s'appuyer sur le bord du fût, protégeant ainsi les moyens de guidage précités. When mounting the balls on the carriage, using threaded rods and nuts through the tube (2) thick rubber washers (5) are interposed. This then constitutes a shock absorber and also a means of adjusting the sliding of the carriage in the barrel. In addition, the carriage has in its upper part a plate (3) secured by welding the tube (2). The diameter of this tray is significantly less than the inside diameter of the barrel. In the event of an impact, it is easy to understand that, the balls situated on the top row slightly disappearing, the plate comes to bear on the edge of the barrel, thus protecting the aforementioned guide means.

De la même manière, les butées (4) situées en partie basse du tube (2), soudées sous les billes inférieures, protègent les dites billes inférieures.In the same way, the stops (4) located in the lower part of the tube (2), welded under the lower balls, protect said lower balls.

En outre le plateau est muni en son centre d'un trou destiné à passer une unique vis (12) qui servira à fixer la borne (13). Cette vis comportera une amorce de rupture de manière à servir de vis fusible. La borne (13) est ici représentée en pointillés. In addition, the plate is provided in its center with a hole intended to pass a single screw (12) which will serve to fix the terminal (13). This screw will include a fracture leader so as to serve as a fusible screw. Terminal (13) is shown here in dotted lines.

L'abaissement de la borne se fait par l'opérateur à l'aide du pied. The terminal is lowered by the operator using the foot.

La remontée est assurée par un ensemble de ressorts à gaz décrit ci-après. Le blocage en position haute ou basse du chariot est assuré par un moyen traditionnel de verrouillage qui n'est pas décrit ici.The ascent is ensured by a set of gas springs described below. The blocking in the high or low position of the carriage is ensured by a traditional locking means which is not described here.

Selon l'invention le dispositif autonome qui compose le moyen de remontée du chariot est composé de quatre ressorts à gaz (8,9) de dimensions identiques (corps, courses) et d'un support rigide (7) coopérant assurant la liaison de l'ensemble des quatre ressorts à gaz. Les trois ressorts à gaz (8) de course "cl" et de force "fi" sont répartis équiangulairement autour du support (7) de manière à former un ensemble auto-stable en position verticale. Le ressort à gaz (9) est fixé au centre et en bas du support (7) dont la longueur correspond sensiblement à celle d'un quelconque des quatre ressorts en position tige rentrée. La course de ce ressort est également "cl" identique à celle des trois autres. La force de ce ressort (9) appelée "f3,, est égale à trois fois "fi".  According to the invention, the autonomous device which makes up the means for raising the carriage is composed of four gas springs (8,9) of identical dimensions (body, strokes) and of a rigid support (7) cooperating ensuring the connection of the 'all four gas springs. The three gas springs (8) of stroke "cl" and of force "fi" are distributed equiangularly around the support (7) so as to form a self-stable assembly in vertical position. The gas spring (9) is fixed in the center and at the bottom of the support (7) whose length corresponds substantially to that of any of the four springs in the retracted rod position. The stroke of this spring is also "cl" identical to that of the other three. The force of this spring (9) called "f3 ,, is equal to three times" fi ".

Selon l'invention, l'ensemble ainsi réalisé détermine une course totale "c2" qui est égale à deux fois la course "cl" d'un quelconques des quatre ressorts à gaz, tout en conservant tige rentrée l'encombrement en longueur d'un ressort à gaz de course "cl", ce qui à l'avantage de diminuer nettement la hauteur du tût, tout en conservant toutes les parties vulnérables sous le niveau du sol. According to the invention, the assembly thus produced determines a total stroke "c2" which is equal to twice the stroke "cl" of any of the four gas springs, while keeping the retracted rod the overall length of a racing gas spring "cl", which has the advantage of significantly reducing the height of the barrel, while keeping all the vulnerable parts below ground level.

Comme le montre la figure 1, un couvercle (14) vient coiffer le fût. Ce couvercle est vissé sur le fût par l'intermédiaire de vis et d'éléments taraudés (10) solidaires du fût. En outre la course des ressorts à gaz est déterminée de telle manière qu'en position haute le plateau (3) vient comprimer un joint d'étanchéité (11) interposé lors du montage entre le couvercle (14), et le fût (1), assurant ainsi l'étanchéité en position haute de la partie mécanique enterrée. As shown in Figure 1, a cover (14) covers the barrel. This cover is screwed onto the barrel by means of screws and tapped elements (10) integral with the barrel. In addition, the stroke of the gas springs is determined in such a way that in the high position the plate (3) compresses a seal (11) interposed during assembly between the cover (14), and the barrel (1). , thus ensuring the tightness in the high position of the buried mechanical part.

On voit sur la figure 1 que la borne (13) n'a aucun contact avec le couvercle (14) ni aucune autre pièce de frottement, ce qui évite les rayures généralement constatées sur les modèles de bornes escamotables existantes. It can be seen in FIG. 1 that the terminal (13) has no contact with the cover (14) or any other friction part, which avoids the scratches generally observed on the models of existing retractable terminals.

Une autre caractéristique de ce couvercle (14) est que son ouverture intérieure peut-être d'une forme adaptée de manière à correspondre sensiblement à la section de la borne à fixer sur le plateau (3). On peut ainsi venir fixer sur le plateau (3) une borne de section carrée, ovale, hexagonale etc... Ce montage permet d'obtenir ainsi une standardisation de toute la partie enterrée donc un prix de revient économiquement plus intéressant. Another characteristic of this cover (14) is that its internal opening may be of a suitable shape so as to correspond substantially to the section of the terminal to be fixed on the plate (3). It is thus possible to fix on the plate (3) a terminal of square, oval, hexagonal section, etc. This assembly makes it possible to obtain standardization of the entire buried part, therefore an economically more attractive cost price.

Claims (1)

REVENDICATIONS 1- Mécanisme de translation linéaire pour borne escamotable comportant un chariot composé d' un tube (2), d'un plateau (3) et des butées (4), muni de moyens de guidage et de coulissement à billes (6), se déplaçant de manière linéaire entre une position haute et une position basse à l'intérieur d'un fût (1) et dont la remontée est assurée par un dispositif autonome caractérisé en ce que le dit dispositif est composé de trois ressorts à gaz (8), d'un ressort à gaz (9) de course "cl" et d'un support rigide (6) coopérant, assurant la liaison des trois ressorts à gaz (8), de course "cl" et de force "f1" et du ressort à gaz (9) de course "cl" et de force "f3,, égale à trois fois la force "fi", permettant à l'ensemble ainsi réalisé de développer une course "c2" égale à deux fois la course "cl" 2- Mécanisme de translation linéaire pour borne escamotable selon la revendication 1 dont les moyens de coulissement et de guidage du chariot sont assurés par au moins six billes (6) disposées équiangulairement, autour du tube (2) en deux rangées proches des extrémités inférieures et supérieures du tube (2) caractérisé en ce qu'une rondelle épaisse en caoutchouc (5) est interposée entre les cages à billes et le tube (2) lors du montage de manière à obtenir un amortissement des chocs et un moyen de réglage du coulissement.CLAIMS 1- Linear translation mechanism for retractable bollard comprising a carriage composed of a tube (2), a plate (3) and stops (4), provided with means of guidance and sliding with balls (6), moving linearly between a high position and a low position inside a barrel (1) and the ascent of which is ensured by an autonomous device characterized in that the said device is composed of three gas springs (8 ), a gas spring (9) of stroke "cl" and a rigid support (6) cooperating, ensuring the connection of the three gas springs (8), of stroke "cl" and of force "f1" and of the gas spring (9) of stroke "cl" and of force "f3 ,, equal to three times the force" fi ", allowing the assembly thus produced to develop a stroke" c2 "equal to twice the stroke "cl" 2- Linear translation mechanism for retractable bollard according to claim 1, the sliding and guide means of the carriage being provided by at least six balls (6) arranged equiangularly, around the tube (2) in two rows close to the lower and upper ends of the tube (2) characterized in that a thick rubber washer (5) is interposed between the cages to balls and tube (2) during assembly so as to obtain shock absorption and a means of adjusting the sliding. 3- Mécanisme de translation pour borne escamotable selon les revendications 1 et 2 comportant un couvercle (14) vissé sur le fût caractérisé en ce que l'ouverture pratiquée dans ce couvercle peut avoir des formes différentes afin de correspondre sensiblement à la section de la borne à fixer sur le plateau (3) 4- Mécanisme de translation pour borne escamotable selon les revendications 1 à 3 caractérisé en ce qu'en position haute le plateau (3) vient comprimer un joint d'étanchéité (11) interposé lors du montage entre le couvercle (14) et le fût (1). 3- Translation mechanism for retractable bollard according to claims 1 and 2 comprising a cover (14) screwed onto the barrel characterized in that the opening made in this cover can have different shapes in order to correspond substantially to the section of the bollard to be fixed on the plate (3) 4- Translation mechanism for retractable terminal according to claims 1 to 3 characterized in that in the high position the plate (3) compresses a seal (11) interposed during mounting between the cover (14) and the barrel (1).
FR9701328A 1997-02-04 1997-02-04 LINEAR TRANSLATION MECHANISM FOR RETRACTABLE TERMINAL Expired - Fee Related FR2759102B1 (en)

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FR2759102B1 FR2759102B1 (en) 2000-06-02

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782330A1 (en) * 1998-08-11 2000-02-18 Alain Antoniazzi Bollard for controlling access to surface suitable for motor vehicles
FR2859232A1 (en) * 2003-09-01 2005-03-04 Farzad Elyaci Retractable fence for swimming pool or similar has posts connected by polyvinyl chloride mesh able to retract into sockets set in the ground
US9127421B2 (en) 2011-01-28 2015-09-08 ATG Access Ltd. Bollards
US9127423B2 (en) 2011-03-31 2015-09-08 ATG Access Ltd. Bollards
US9127422B2 (en) 2011-01-28 2015-09-08 ATG Access Ltd. Bollards
US9133589B2 (en) 2011-05-27 2015-09-15 ATG Access Ltd. Bollards
US9133590B2 (en) 2011-01-28 2015-09-15 ATG Access Ltd. Bollards
US9217229B2 (en) 2011-08-01 2015-12-22 ATG Access Ltd. Barriers
US11613858B2 (en) 2017-05-02 2023-03-28 Atg Access Ltd Barriers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002576A1 (en) * 1979-05-23 1980-11-27 Steinmanns Erben A Barrier with retractable post
US4715742A (en) * 1986-03-17 1987-12-29 Dickinson Harry D Manually depressible automatically deployable spring balanced bollard
EP0597543A1 (en) * 1992-11-10 1994-05-18 T.I.F. ELETTRONICA S.r.l. Disappearing post
DE4401312A1 (en) * 1994-01-19 1995-07-20 Malkmus Doernemann Carola Shut-off device with a bollard that can be lowered into a recess
DE29617371U1 (en) * 1996-09-25 1996-11-21 Braun, Karl, 10717 Berlin Barrier bollards for driveways and parking lots

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002576A1 (en) * 1979-05-23 1980-11-27 Steinmanns Erben A Barrier with retractable post
US4715742A (en) * 1986-03-17 1987-12-29 Dickinson Harry D Manually depressible automatically deployable spring balanced bollard
EP0597543A1 (en) * 1992-11-10 1994-05-18 T.I.F. ELETTRONICA S.r.l. Disappearing post
DE4401312A1 (en) * 1994-01-19 1995-07-20 Malkmus Doernemann Carola Shut-off device with a bollard that can be lowered into a recess
DE29617371U1 (en) * 1996-09-25 1996-11-21 Braun, Karl, 10717 Berlin Barrier bollards for driveways and parking lots

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782330A1 (en) * 1998-08-11 2000-02-18 Alain Antoniazzi Bollard for controlling access to surface suitable for motor vehicles
FR2859232A1 (en) * 2003-09-01 2005-03-04 Farzad Elyaci Retractable fence for swimming pool or similar has posts connected by polyvinyl chloride mesh able to retract into sockets set in the ground
US9127421B2 (en) 2011-01-28 2015-09-08 ATG Access Ltd. Bollards
US9127422B2 (en) 2011-01-28 2015-09-08 ATG Access Ltd. Bollards
US9133590B2 (en) 2011-01-28 2015-09-15 ATG Access Ltd. Bollards
US9127423B2 (en) 2011-03-31 2015-09-08 ATG Access Ltd. Bollards
US9133589B2 (en) 2011-05-27 2015-09-15 ATG Access Ltd. Bollards
US9217229B2 (en) 2011-08-01 2015-12-22 ATG Access Ltd. Barriers
US11613858B2 (en) 2017-05-02 2023-03-28 Atg Access Ltd Barriers

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Effective date: 20111102