EP1132522A1 - Fastening device for a roller rail - Google Patents

Abstract

The device for fixing a running rail (5) onto a support comprises a plate (4) on which the rail rests. There is a first component (1) for fixing the rail base plate pad (10) and a screw (2) and nut (6) assembly. The screw has a body (21) and a head (20). The plate has openings (7) shaped to allow insertion of the screw head preventing the exit of the screw head after rotating the head into a locking position.

Description

Subject of the invention

The present invention relates to a device for fixing a running rail such as a handling rail.

The present invention also relates pieces, and in particular flat or platinum and cap, part of this fixing device.

Technological background

Two main families of track rails exist, on the one hand fixing systems to weld and secondly systems of fixing to bolt.

In welding systems, we use (i) a first element which rests on the surface of the support generally flat and securely attached to it by welding; (ii) a second element which makes it possible to imprison the rail, more particularly the sole or the shoe of the rail, and which has for example a lateral surface overhanging and coming into contact with the sole or the shoe of the rail; (iii) a third element which corresponds to a means of fixing the first and second elements together. In general, this third element is constituted by a screw whose head is inserted into a present opening in the first and in the second element and on which comes to fix a nut.

The welding systems present as main drawback the need to provide a room that we will weld on the plate or the plate, which increases the cost price of the fixation. On the other hand, the fact of using such welded devices makes the user dependent on the dexterity or skill of the welder. A last disadvantage is the weight of such a device, given that it requires the presence of an additional room.

Furthermore, in the particular case of galvanized parts, it is necessary to provide a evacuation of different liquids to guarantee the galvanizing process.

In bolt-on fastening systems, generally uses the same elements as in welded systems but the first building block on the surface of the support is fixed securely this time by bolting.

The main difficulty in using bolted systems is that the screw head is drowned in concrete and it is no longer possible to have access to consider dismantling the device. he it is essentially a single use system.

Aims of the invention

The present invention aims to provide a track rail fixing device which prevents disadvantages of the two prior art systems, that is, it must be a device not requiring no welding but whose disassembly is however allowed.

Main characteristic features of the invention

The present invention relates to a device for fixing a running rail such as a handling rail on a support comprising at least one plate or a plate on which the rail rests and two elements, a primary element intended for fixing the rail sole and a secondary element corresponding to a screw-nut assembly, the screw comprising a body and a head screw, characterized in that the plate or the plate has openings which are shaped so as to allow the insertion of the screw head according to a first direction for so-called direction or position of introduction while preventing its exit after a movement imposed on said screw head in a second direction or position called direction or position of blocking.

The movement imposed on the screw head can be a rotation or a translation. In the case of a rotation, so we make a movement between the first direction (of introduction) and the second direction (of blocking). In the case of a translation, we therefore perform a movement between the first (introductory) position and the second position (blocking).

Advantageously, the device comprises in in addition to a tertiary element at the level of which positioned the screw head, and shaped as it allows movement of the screw head between the direction or so-called introductory position and direction or position so-called blocking and vice versa. The presence of this element tertiary advantageously allows disassembly to be authorized, even if the screw head fitted with the element tertiary is embedded in the environment (concrete, earth, mud, etc.).

Preferably, the conformation of the element tertiary is such that it also helps prevent the exit of the screw after the movement imposed on said head screw in direction or locking position.

According to a preferred form of the invention, the tertiary element is a cap comprising protusions with buffer surfaces between which the screw head can rotate (by rotation) or move (per trip).

Advantageously, the cap comprises in besides anchoring means in the opening of the dish or platinum which are preferably in the form outgrowths.

According to a preferred embodiment of the invention, the openings in the dish or platinum have an oblong shape.

"Oblong shape" means a shape elongated and preferably an ellipse.

According to another preferred embodiment of the invention, the openings in the dish or platinum have the form called "keyhole", that is to say a shape responding to an asymmetrical design particular.

In other words, the shape of the openings of the dish or the platen is such that the dimensions said openings are larger in the direction or introductory position only in the direction or position blocking, so that the screw head cannot be introduced into the opening concerned only according to the direction or position of introduction. Furthermore, in order prevent the screw head from coming out of the opening direction or locking position, the dimensions of opening in this direction or blocking position will be smaller than those of the screw head.

Such openings will be obtained by conventional cold steel processing techniques such as punching, laser cutting, flame cutting, waterjet, plasma cutting or even milling.

In addition, the secondary element constituting the screw-nut assembly may possibly be equipped with accessory elements such as washers.

By "flat" is meant a relatively long, which can reach up to six meters, on which is continuously deposited the rail. By "platinum", we hear a shorter element that can be used for mounting a rail discontinuously, i.e. the rail is placed on several plates separated by spacings.

These dishes or these plates are made of preferably in laminated sheet having a thickness relatively constant and preferably between 15 and 20 mm. These sheets can be obtained by cutting (oxycutting, laser cutting, water jet, etc.).

Optionally, the dishes or plates include other openings for others functions such as upgrading.

The present invention also relates to a dish or a platinum intended to be used in the fixing of a running rail such as a handling on a support using the device according to the invention.

More specifically, this dish or platinum includes openings that are shaped to allow inserting the head of a screw while preventing exit thereof after a movement imposed on said head quote.

Preferably, the openings have a shape oblong or a "keyhole" shape.

Finally, the present invention relates also to a cap intended for use in the fixing of a running rail such as a handling on a support using the device according to the invention. This cap allows the movement of a head of screw between the direction or insertion position and the blocking direction or position and vice versa. he thus helps to prevent the exit of the screw head after this movement.

Preferably, the cap includes protusions with buffer surfaces. It includes besides anchoring means in the opening of the dish.

Brief description of the drawings

Figure 1 shows an exploded view of different elements of the fixing device according to the present invention.

Figure 2 shows a sectional view of different elements of the fixing device according to the present invention with respect to the rail to be fixed.

Figure 3 shows a sectional view of a preferred embodiment of a cap according to the present invention.

Figure 4a shows a top view of this preferred embodiment of the cap according to the present invention with the screw head such than originally introduced.

Figure 4b shows a top view of this preferred embodiment of the cap in the dish according to the present invention with the screw head which has undergone 90 ° rotation in the locking direction.

Description of a preferred embodiment of the invention

The general characteristics of the device of fixing according to the invention are shown on the Figures 1 and 2.

• l'élément primaire 1 qui repose sur le plat 4;
• l'élément secondaire qui correspond à un ensemble constitué d'une vis 2 avec son écrou 6 et qui permet de solidariser l'élément primaire 1 et le plat 4, la vis 2 comprenant elle-même un corps 21 et une tête de vis 20;
• l'élément tertiaire 3 qui coopère avec la tête de vis 20 et participe éventuellement au contrôle du mouvement de ladite vis 2. L'élément tertiaire 3 assure surtout une fonction dite de "réservation", c'est-à-dire qu'il permet de désolidariser à souhait l'élément primaire 1 et le plat 4 en permettant le déblocage de la tête de vis 20.

As shown in FIGS. 1 and 2, the fixing device comprises at least one plate or a plate 4 and three elements:

• the primary element 1 which rests on the plate 4;
• the secondary element which corresponds to an assembly consisting of a screw 2 with its nut 6 and which makes it possible to secure the primary element 1 and the plate 4, the screw 2 itself comprising a body 21 and a screw head 20 ;
• the tertiary element 3 which cooperates with the screw head 20 and possibly participates in controlling the movement of said screw 2. The tertiary element 3 above all performs a so-called "reservation" function, that is to say it allows the primary element 1 and the plate 4 to be separated as desired, allowing the screw head 20 to be released.

The primary element 1 comprises so classic an extension 9 intended to be superimposed on the sole or pad 10 of the rail. This extension 9 includes on its lower part an elastic member 11 produced in a elastomeric material which absorbs the movements of the rail.

The primary element 1 further comprises in all its thickness an opening 12 perpendicular to the plane of the plate 4 and in which the screw is positioned 2 which, with its nut 6 constitutes the secondary element 2. The secondary element 2 thus makes it possible to secure the primary element 1 on the plate 4.

The plate 4 has in its thickness a opening 7 above which the element is positioned primary 1.

According to a preferred form of the invention the opening 7 at the level of the dish 4 has a shape oblong as shown in Figure 1. This shape 7 has a minor axis 71 and a major axis 72.

Furthermore, the screw 2 as shown in FIG. 1, which has a body and a screw head, has an axis of the screw body constituting the main axis screw rotation.

The relative dimensions of the screw head 20 and the opening 7 of the dish 4 are such that the head of screw can only be inserted into opening 7 according to the major axis 72 of said opening, the smallest dimension of the screw head being less than the minor axis 71 while that the largest dimension of the screw head is greater than minor axis 71.

Tertiary element 3 can take the form a cap, preferably made of synthetic material. The cap 3 has a base 14 in the center of which will be fixed the screw head, an intermediate zone 15 and outgrowths 16 in the form of notched tenons (in the form of half-T), which outgrowths 16 are capable of fit into notches (not shown) made in level of the opening 7 of the dish or possibly directly in this opening 7 of the dish, and not to stand out only with difficulty. In addition, the cap 3 has in its thickness of the locking means corresponding to protrusions 18,18 'which extend from base 14 to the intermediate zone 15 and which have stop surfaces A, A '.

Figures 3, 4a and 4b show, as illustration, a preferred embodiment of the element tertiary according to the invention corresponding to a cap, but they in no way limit the scope of the invention.

• On fixe d'abord le capuchon 3 sous le plat 4 en emboítant les excroissances 16 du capuchon 3 dans les encoches de l'ouverture 7 (ou directement dans l'ouverture 7) du plat 4. Une extrémité du capuchon 3, plus précisément l'extrémité supérieure, est ainsi solidaire de la surface (inférieure) du plat 4 et l'autre extrémité, l'extrémité inférieure, est située sous ledit plat 4. Les surfaces butoirs A, A' des protusions 18,18' au niveau du capuchon 3 sont ainsi orientées dans la direction d'introduction B.
• On introduit ensuite la tête de vis 20 dans l'ouverture 7 selon une première direction I correspondant à la direction d'introduction. La tête de vis 20 a des dimensions telles que la vis peut traverser l'épaisseur du plat et se positionner au niveau de la base 14 du capuchon 3. La position relative de la tête de vis 20 par rapport aux différents éléments du capuchon 3 ainsi obtenue est représentée sur la figure 4a.
• On impose alors à la vis une rotation de 90° autour de son axe principal de façon à amener la tête de vis dans une deuxième direction B correspondant à la direction de blocage. La tête de vis rencontre dans cette direction de blocage B au niveau du capuchon 3 les surfaces butoir A, A' des protusions 18, 18' contre lesquelles elle bute et qui permettent ainsi de bloquer la rotation de la tête de vis, comme illustré à la figure 4b. Par ailleurs, l'orientation relative de la tête de vis 20 et de l'ouverture 7 est alors telle que le petit axe de l'ouverture 7 empêche la translation de la vis dans la direction d'introduction I. On évite ainsi, à la fois grâce à la forme de l'ouverture 7 et grâce à celle du capuchon 3, que la vis 2 ne sorte de l'ouverture 7 et/ou ne se désolidarise du plat 4.
• On place ensuite les autres pièces du dispositif, c'est-à-dire l'élément primaire 1, l'écrou 6 et éventuellement les rondelles 17. Plus précisément, on place l'élément primaire 1 au-dessus du plat 4 en insérant la vis 2 dans l'ouverture 12 de l'élément primaire 1. La vis est suffisamment longue pour traverser toute l'épaisseur de l'élément primaire 1. Le système est finalement verrouillé à l'aide de l'écrou 6 fixé sur la vis.

The rail 5 is fixed to the plate 4 as follows:

• The cap 3 is first fixed under the dish 4 by fitting the protuberances 16 of the cap 3 into the notches of the opening 7 (or directly in the opening 7) of the dish 4. One end of the cap 3, more precisely the the upper end is thus secured to the surface (lower) of the plate 4 and the other end, the lower end, is located under said plate 4. The stop surfaces A, A 'of the protrusions 18,18' at the level of the cap 3 are thus oriented in the direction of introduction B.
• The screw head 20 is then introduced into the opening 7 in a first direction I corresponding to the direction of introduction. The screw head 20 has dimensions such that the screw can pass through the thickness of the dish and position itself at the level of the base 14 of the cap 3. The relative position of the screw head 20 relative to the various elements of the cap 3 as well obtained is shown in Figure 4a.
• The screw is then forced to rotate 90 ° around its main axis so as to bring the screw head in a second direction B corresponding to the locking direction. The screw head meets in this blocking direction B at the cap 3 the stop surfaces A, A 'of the protrusions 18, 18' against which it abuts and which thus make it possible to block the rotation of the screw head, as illustrated in Figure 4b. Furthermore, the relative orientation of the screw head 20 and of the opening 7 is then such that the minor axis of the opening 7 prevents translation of the screw in the direction of introduction I. This thus avoids, at both thanks to the shape of the opening 7 and thanks to that of the cap 3, that the screw 2 does not come out of the opening 7 and / or does not separate from the plate 4.
• The other parts of the device are then placed, that is to say the primary element 1, the nut 6 and possibly the washers 17. More precisely, the primary element 1 is placed above the plate 4 by inserting the screw 2 in the opening 12 of the primary element 1. The screw is long enough to pass through the entire thickness of the primary element 1. The system is finally locked using the nut 6 fixed on the screw.

At any time it is possible to disconnect the primary element 1 and the dish 4. For this, first of all, the nut 6 and the primary element 1 are removed. We then subject the screw head to be able to remove the screw, a 90 ° rotation movement in the direction opposite to that which allowed the joining of the parts that is to say by moving it away from the blocking direction B.

Plate 4 may have other openings complementary to opening 7 and which will fill other functions, such as for example upgrading.

The second element may also include accessory elements such as washers 17 placed between the surface of the primary element 1 and the nut 6 to tighten screw 2 as well as possible with its nut in the element primary 1 and dish 4 and thus ensure better solidarity between the two.

Such a device therefore ensures a very large fixing security. In addition, it has the advantage to be easily removable.

Special hammer head screws can be used for such a device but screws classics are also suitable. Likewise the element primary (1) is entirely classic. All efficiency of such a device relies solely on the sole skill of the skilled person to make the opening 7 at the level of the dish 4.

Claims (15)

Device for fixing a rolling rail (5) such as a handling rail on a support comprising at least one plate or a plate (4) on which (or which) the rail (5) rests, and at least two elements, a primary element (1) intended for fixing the sole (10) of the rail (5) and a secondary element corresponding to a screw (2) - nut (6) assembly, the screw comprising a body (21) and a screw head (20), characterized in that the plate or the plate (4) has openings (7) which are shaped so as to allow the insertion of the screw head (20) in a first direction or position said direction or insertion position (I) while preventing the exit of the screw head (20) after a movement imposed on said screw head (20) in a second direction or position called direction or blocking position (B). Device according to claim 1, characterized in that the movement imposed on the screw head (20) is a rotational or translational movement. Device according to claim 1 or 2, characterized in that it further comprises a tertiary element (3) of conformation such that it allows the movement of the screw head (20) from the direction or position of introduction ( I) towards the blocking direction or position (B) and vice versa. Device according to claim 3, characterized in that the shape of the tertiary element (3) is such that it also contributes to preventing the exit of the screw (2) after the movement imposed on the screw head (20) in direction or locking position (B). Device according to claim 4, characterized in that the cap (3) comprises protrusions (18, 18 ') having stop surfaces (A, A') between which the screw head (20) can turn by rotation or move by translation. Device according to claim 4, characterized in that the cap (3) further comprises means for anchoring in the opening (7) of the dish which are preferably protuberances (16) or notched tenons. Device according to one of the preceding claims, characterized in that the opening (7) has an oblong shape. Device according to one of claims 1 to 4, characterized in that the opening (7) has the form of a keyhole. Plate or plate intended to be used in fixing a running rail such as a rail handling on a support using a device according to one of the preceding claims, characterized in that that he / she comprises at least one opening (7) which is shaped so as to allow the insertion of a screw (20) while preventing the exit of said screw head (20) after a movement imposed on said screw head (20). Plate or plate according to claim 9, characterized in that said opening (7) has a oblong shape. Plate or plate according to claim 9, characterized in that said opening (7) has the form a keyhole. Cap intended for use in fixing a handling rail to a support using a device according to one of claims 1 to 8, characterized in that its conformation is such that it allows the movement of 'a screw head (20) between a direction or position of introduction (I) and a direction or position of blocking (B) or vice versa. Cap according to claim 12, characterized in that it is shaped so as to prevent the exit of the head of a screw (20) after the movement imposed on it in the direction or locking position B). Cap according to claim 12 or 13, characterized in that it comprises protrusions (18, 18 ') having stop surfaces (A, A'). Cap according to any one of Claims 12 to 14, characterized in that it further comprises anchoring means in the opening (7) of the dish (4), said anchoring means being preferably in the form of 'growths (16) or notched tenons.

Images