FR3025237A1 - SLIDING PORTAL AT THE FRONT AND SELF-SUPPORTING AT THE BACK - Google Patents

Abstract

The present invention relates to a gate comprising at least: - a front pole (30) and a rear pole (31) intended to be secured at a distance from each other to define between them a circulation passage (32); a guide rail (33) extending along said circulation passage (32) essentially from one to the other of said posts (30, 31); a leaf (34) slidably mounted along said posts (30, 31) between at least one opening position of said circulation passage (32) in which its front end is close to said rear post (31), and a position closure of said circulation passage (32) in which its front end is close to said front post (30), said leaf (34) comprising a lower beam (340) carrying at its front end first guide means (35) cooperating with said guide rail (33); second guide means (80, 81) cooperating with said lower beam (340) and disposed near said rear pole (31); rear support means (100) of said leaf (34) arranged upstream of said rear pole (31) so that said leaf (34) is brought to rest on said rear support means (100) when it is moved in its open position.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The field of the invention is that of the design and manufacture of gates. 2. PRIOR ART Portals are conventionally used to allow or prevent, depending on whether they are open or closed, access to a closed enclosure such as a fenced yard. The current portals are essentially divided into two groups, namely: - pivoting gates, and - sliding gates. The pivoting gates generally comprise one or two leaves, arranged between two posts defining a passage of circulation. This or these leaves are movably mounted in rotation about a vertical axis relative to the posts which they are secured between an open position of the circulation passage and a closed position of the circulation passage. According to a different approach, the sliding gates generally comprise a sliding leaf mounted along two posts defining a circulation passage between an open position of the circulation passage and a closed position of the circulation passage. Sliding gates can currently be divided into two sub-groups, namely: - sliding gates on rails, and - self-supporting gates.

As shown in FIG. 1, a sliding rail gate comprises a front post 10 and a rear post 11 defining a circulation passage 12. It also comprises a guide rail 13 which extends along the circulation passage 12 and extends upstream of the rear pole 11 over a distance substantially equal to the length of the circulation passage 12. A leaf 14 rests on guide wheels 15, 16 which cooperate with the guide rail 13. It can thus be slid along the posts 10, 11 between an open position of the circulation passage 12 and a closed position of the circulation passage 12.

3025237 2 Sliding rail gates have many advantages. They make it possible in particular to guarantee a good sliding guide of the leaf by the implementation of the guide rail. They also benefit from a relatively small backflow area. Indeed, their discharge zone, that is to say the distance they occupy behind the rear post 11 when the leaf 14 is in the open position, is substantially also the length of the leaf. Sliding rail gates have some disadvantages, however. They require the implementation of a relatively large guide rail whose length is substantially equal to twice the length of the passage 10 of circulation 12. The implementation of such a rail generates the existence of a risk of derailment of the leaf and represents a cost. Sliding rail gates also imply the implementation of a rather important civil engineering. Indeed, a concrete threshold must be poured over the entire length of the circulation passage and the discharge zone to secure the guide rail 13 and the posts 10, 11. As shown in Figure 2 , a self-supporting gate comprises a front post 20 and a rear post 21 defining a circulation passage 22. It comprises a leaf 23 comprising a hollow lower beam 230 along the lower face of which is formed a longitudinal opening. Two plates 24 carrying guide rollers 240 of vertical axes of rotation and guide rollers 241 of horizontal axis of rotation rest on the ground one substantially at the rear post 21 and the other upstream of that -this. These guide rollers 240, 241 are housed inside the lower beam 230 of the leaf 23. The lower beam 230 extends upstream of the barred portion 25 of the leaf 23, that is to say of the portion comprising Bars 26. Its rear end is connected to the rear end of the upper beam 231 of the leaf by means of an oblique reinforcing beam 232. The leaf 23 is thus mounted cantilever. A rear stop 25 makes it possible to stop the recoil of the leaf 23 in its open position.

Self-supporting gates have many advantages. They make it possible to guarantee a good stability of the leaf and avoid the derailment of it. They avoid the implementation of a guide rail. As a result, the passage zone remains flat. They require the completion of a civil engineering reduced concrete pads at each post, each plate 24 and the rear stop 25. However, the self-supporting gates have the disadvantage of having a large discharge area. Indeed, considering that the gate is 5 mounted cantilever, the lower beam thereof must extend upstream of the barred portion to be able to support the leaf in the closed position. Thus, the discharge zone has a length equal to the sum of that of the circulation passage and that of the portion of the lower beam which extends beyond the barred portion of the leaf. The implementation of such a self-supporting portal 10 therefore supposes to have a large space upstream of the rear post to allow the leaf to be pushed back. The choice to install a sliding gate of one type rather than the other is thus generally made according to the space available for the discharge. 3. Objectives of the invention The object of the invention is in particular to provide an effective solution to at least some of these various problems. In particular, according to at least one embodiment, an object of the invention is to improve the sliding gates. In particular, the object of the invention is, according to at least one embodiment, to provide such a sliding gate which benefits both from the advantages, or at least a part thereof, of the self-supporting gates that sliding gates on rail. Another object of the invention is, according to at least one embodiment, to provide such a sliding gate that allows to ensure good guiding of the leaf while enjoying a small discharge zone. Another object of the invention is, according to at least one embodiment, to provide such a sliding gate which requires a relatively small civil engineering. Another object of the invention is, according to at least one embodiment, to provide such a sliding gate whose leaf has a good stability.

Another object of the invention is, according to at least one embodiment, to provide such a sliding gate which is simple in design and / or robust and / or easy to install and / or which is reversible (installable for sliding to opening in one direction or the other). For this, the invention proposes a gate comprising at least: a front post and a rear post intended to be secured at a distance from each other to define between them a circulation passage ; A guide rail extending along said flow passage essentially from one to the other of said posts; a leaf slidably mounted along said posts between at least one opening position of said circulation passage in which its front end is close to said rear post, and a closing position of said circulation passage in which its front end is located. in the vicinity of said front post, said leaf comprising a lower beam carrying at its front end first guide means cooperating with said guide rail; second guide means cooperating with said beam and disposed near said rear pole; rear support means of said leaf arranged upstream of said rear pole so that said leaf is brought to rest on said rear support means when moved to its open position.

Thus, the invention is based on an original approach which consists in guiding the front part of the gate leaf sliding along a rail extending between the front post and the rear post defining the circulation passage in the manner a sliding gate on a rail, to provide means for guiding the leaf at the rear post in the manner of a self-supporting gate, and to provide rear support means for supporting the rear part of the leaf when is brought back to the open position. The invention therefore consists in combining a sliding gate on a rail and a self-supporting gate to provide a sliding gate rail on the front and self-supporting rear.

Such a gate has the advantage of ensuring a good guiding of the leaf by the implementation of the guide rail, to ensure good stability of the leaf and thus avoid any derailment of the leaf due to the implementation. of the self-supporting type guide means at the rear post, not to generate a large discharge area due to the guiding of the leaf at the front, and to require a civil engineering reduced to a concrete threshold at the level of the the passage area for the guide rail and concrete pads at each post and rear support means. The technique according to the invention thus offers an optimized sliding gate solution. According to a variant, said leaf is pivotally mounted about a horizontal axis and orthogonal to its sliding axis, said leaf carrying: on said first guide means and said second guide means when its center of gravity is situated between said pole forward and said second guide means, and said second guide means and said rear support means when its center of gravity is between said second guide means and said rear support means. According to a variant, said rear support means are arranged in such a way that when the center of gravity of said leaf passes said second guiding means during the movement of said leaf towards its open position, said rear support means are located below the rear end of said leaf. According to a variant, said lower beam is hollow and has a longitudinal opening oriented downwards, said second guide means comprising at least one roller housed inside said lower beam and coming into contact with at least some of the inner walls. said lower beam, said at least one roller being secured to a fixed support passing through said opening. This ensures an efficient translation guide leaf at the rear post level and the lower beam. According to a variant, said second guiding means comprise at least one first roller rotatably mounted about a substantially vertical axis orthogonal to the sliding axis of said leaf and a second roller rotatably mounted around a essentially horizontal axis orthogonal to the axis of sliding of said leaf. This ensures in a simple way effective blockage of the leaf in vertical and horizontal directions orthogonal to the sliding axis of the leaf. According to a variant, said rear support means comprise a roller mounted to rotate in a horizontal axis orthogonal to the axis of sliding of said leaf. This makes it possible to ensure effective guiding of the rear part of the leaf 10 in a simple manner. According to a variant, said first guide means comprise a guide wheel mounted to rotate with respect to said lower beam about a substantially horizontal axis orthogonal to the axis of sliding of said leaf.

This makes it possible to ensure efficient guiding of the front part of the leaf in a simple manner. In a variant, a gate according to the invention comprises sliding drive means of said leaf, said lower beam being hollow and having a longitudinal opening oriented downwards, said drive means comprising a rack housed inside. of said lower beam and secured thereto, a driving pinion rotatably mounted about a substantially horizontal axis orthogonal to the sliding axis of said leaf and meshing with said rack, said driving pinion extending in the axis of said opening. Because the guide means are located inside the lower beam, they are sheltered which increases their life and reduce the risk of jamming fingers and thus improve safety. Because the rack is in the axis of the opening in the lower beam, it is possible to use the leaf without modification for both an opening to the left and an opening to the right. A gate according to the invention is thus easily reversible. This is not the case of gates according to the prior art in which the rack is placed outside the lower beam and the inner side to the property.

According to a variant, said drive means comprise a motor whose output shaft is connected to said drive gear by means of at least one pinion. According to a variant, said drive pinion is integral with said fixed support. 5. BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the invention will appear on reading the following description of particular embodiments, given by way of a simple illustrative and nonlimiting example, and the appended drawings among which: Figure 1 illustrates a rear perspective view of a sliding gate on rail according to the prior art; Figure 2 illustrates a rear view in perspective of a self-supporting portal according to the prior art; Figure 3 illustrates a rear perspective view of a gate according to the invention in the closed position; Figures 4 and 5 illustrate two rear views in perspective of a gate according to the invention in partial closed position or partial open position; Figure 6 illustrates a rear perspective view of a gate according to the invention in the open position; FIG. 7 illustrates a detail of the second guiding means of a gate according to the invention; FIG. 8 illustrates a perspective view of the second guiding means of a gate according to the invention; Figure 9 illustrates a cross-sectional view of the lower beam of the leaf of a gate according to the invention; FIG. 10 illustrates a perspective view of the rear support means of a gate according to the invention; Figure 11 illustrates a side view of the rear support means illustrated in Figure 10; - Figure 12 illustrates a detail view and side of the first guide means according to the invention. 6. Description of a particular embodiment 6.1. Architecture In connection with FIGS. 3 to 12, an exemplary embodiment of a gate according to the invention is presented. The front and the back of the gate are defined according to the direction of movement of its leaf. Thus, the leaf moves forward of the gate when it is returned to its closed position as it moves towards the rear of the gate when it is returned to its open position. As shown in these figures, such a gate comprises a front post 30 and a rear post 31. These posts 30, 31 are spaced apart from one another to define between them a circulation passage 32. A rail guide 33 extends from one to the other of the posts before 30 and rear 31. The front 30 and rear 31 posts and the guide rail 33 are secured to a concrete threshold (not shown) cast for this purpose in the soil 20 approximately from one to the other of the poles. The gate comprises a leaf 34. This leaf 34 is slidably mounted facing the posts 30, 31. The guide rail 33 is therefore placed in a plane offset and parallel to the plane formed by the posts. The leaf includes a frame. This frame comprises a lower beam 340, an upper beam 341, a front post 342 and a rear post 343 interconnected to form the frame having in this embodiment a substantially rectangular shape. The lower and upper beams 340 and 341 are connected by vertical bars 344 so that the leaf constitutes a barred grid. In variants, the leaf could also be full.

The front end of the lower beam 340 carries a guide wheel 35. The axis of rotation of this guide wheel 35 is substantially horizontal and orthogonal to the sliding axis of the leaf 34. This guide wheel 35 cooperates with with the guide rail 33. The leaf is not supported by any other guide wheel, placed elsewhere than at the front of the lower beam, cooperating with the guide rail 33. This guide wheel 35 as well as the guide rail 33 constitute first guide means. They are more visible in FIG. 12. As shown in FIG. 9, the lower beam 340 is hollow. A longitudinal opening 90 is formed through its lower wall 91 substantially in its middle. The gate comprises guiding means placed close to the rear post 31. As shown in FIG. 8, these guiding means comprise in this embodiment a lateral blocking roller 80 mounted rotatably about a vertical axis. and a pair of height-locking rollers 81 rotatably mounted along a horizontal axis orthogonal to the sliding axis of the leaf. These rollers are integral with a support 82 connected to a mounting plate 83 provided to be secured to the concrete threshold. Support 82 passes through aperture 90 in lower beam 340 so that rollers 80, 81 are housed therein. The lateral locking roller 80 comes into contact with the lateral inner walls 92 of the lower beam 340. The height locking rollers 81 come into contact with the upper and lower inner walls 93 and 93 of the lower beam 340. The rollers 80, 81 constitute means for guiding the lower beam in translation along the axis of sliding of the leaf, as well as locking means in translation along a vertical axis and a horizontal axis orthogonal to the sliding axis of the leaf. A fork 84 is integral with the support 82. This fork extends from the opposite side of the support 82 to the one where the lateral locking roller 80, in this case the rearward facing side, is located. This fork comprises two lateral wings 841, 842 defining a housing adapted to receive a drive pinion 71. They are each traversed by a bore allowing the passage of an axis 72 around which the drive pinion 71 is movably mounted. in rotation. This extends horizontally and orthogonally to the sliding axis 5 of the leaf. The drive pinion 71 meshes with a rack 70. This rack 70 is secured to the upper inner wall 93 of the lower beam 340 in the axis of the opening 90. The gate comprises a motor 36 whose output shaft is provided with a gear 361 which meshes with the drive pinion 71. The gate comprises rear support means 37. These are placed upstream of the rear post 31. As shown in FIGS. 10 and 11 these rear support means 37 comprise a roller 100. This roller 100 is rotatably mounted on a support 101 intended to be secured to a concrete block cast for this purpose upstream of the rear pole 31. The roller 100 is arranged such that it is rotatable about an axis substantially horizontal and orthogonal to the axis of sliding of the leaf 34. This roller 10 will preferably be covered and / or made at least partly in a material having mortissant. The leaf 34 is slidably mounted between at least: a closed position of the circulation passage 32, illustrated in FIG. 3, in which its front post 342 is close to the front post 30 and its rear post 343 is near the rear post 31, and an open position of the circulation passage 32, illustrated in Figure 6, wherein its front post 342 is close to the rear post 31. The leaf 34 is rotatably mounted around the an axis 30 substantially horizontal and orthogonal to its axis of sliding. In this case, it can tilt around the axis of rotation of the height locking rollers 81. Thus, the leaf carries: on the guide rail 33 via the guide wheel 35 and on the locking rollers in height 81 as long as its center of gravity G is situated between the front post 30 and the height locking rollers 81, and on the height locking rollers 81 and on the roll 100 when its center of gravity G is situated between the height locking rollers 81 and the roll 100.

The rear support means 37 are placed so that when the center of gravity G of the leaf 34 passes the height locking rollers 81 during the movement of the leaf 34 to its open position, said rear support means, in this case the roll 100, are located under the rear end of the leaf 34. 6.2. Operation When the leaf 34 of the gate is in its closed position in which it closes the circulation passage 32, it rests at the front on the guide wheel 35 and at the rear on the height locking rollers 81. If it is desired to open the circulation passage 32, the leaf is slid back towards its open position. The guide wheel 35 then rolls against the guide rail 33 and the lower beam 340 is guided in translation by the rollers 80, 81. During this movement, the leaf 34 carries on the guide rail 33 via the guide wheel 35 and on the height locking rollers 81 as long as its center of gravity G does not exceed the rollers 81 (see FIG. 4). When its center of gravity G exceeds the rollers 81, the leaf tilts around the axis of rotation of the rollers 81. Its rear end then rest on the roll 100 so on its front end takes off so that the guide wheel 34 is more in contact with the guide rail 33 (see Figure 5). The leaf 34 then carries 30 that the height locking rollers 81 and the roller 100 (see Figure 5 and 6).

The sliding can thus continue until the leaf 34 reaches its open position illustrated in FIG. 6. If it is desired to close the circulation passage 32, the leaf 34 is slid forward towards its position. closure.

During this movement, the leaf 34 slides on the height locking rollers 81 and on the roller 100 (see FIGS. 5 and 6) while the guide wheel 35 is detached from the guide rail 33 as long as its center gravity G does not exceed the height locking rollers 81 (see Figures 5 and 6). When its center of gravity G exceeds the height locking rollers 81, the leaf tilts around the axis of rotation of the rollers 81. Its front end is lowered so that the guide wheel 35 cooperates with the rail. guidance 33 while its rear end off so that it no longer rests on the roller 100 (see Figure 4). The guide wheel 35 then rolls against the guide rail 33 and the lower beam 340 is guided in translation by the rollers 80, 81. The sliding can thus continue until the leaf 34 reaches its closed position illustrated in FIG. Figure 3. The leaf can of course be stopped in a plurality of partial opening or closing positions. 6.3. Advantages A gate according to the invention has the advantage of ensuring good guiding of the leaf in the guide rail while avoiding the risk of derailment due to the implementation of self-supporting type of support means at the post level. rear (guide rollers of vertical axes and horizontal axis orthogonal to the axis of sliding of the leaf).

A portal according to the invention also has the advantage of benefiting from a reduced discharge area because its front end rests on a guide wheel which makes it possible to avoid oversizing the rear length of the leaf as is the case with portals. A utoporta nts of the prior art. A portal according to the invention also has the advantage of requiring the implementation of a relatively small civil engineering compared to a sliding gate on the rail of the prior art.

Due to the fact that the rack is concealed inside the lower beam, the risk of jamming the fingers therein is very limited compared to the techniques of the prior art in which the rack is on the outside. of the lower beam on one of its sides.

Because the rack is in the axis of the opening in the lower beam, it is possible to use the leaf without modification for both opening to the left and opening to the right. A gate according to the invention is thus easily reversible. This is not the case with prior art gates in which the rack is placed outside the lower beam and on the inside of the property.

Claims (10)

REVENDICATIONS1. Portal comprising at least: a front post (30) and a rear post (31) intended to be secured at a distance from one another to define between them a circulation passage (32); a guide rail (33) extending along said circulation passage (32) substantially from one to the other of said posts (30, 31); a leaf (34) slidably mounted along said posts (30, 31) between at least one opening position of said circulation passage (32) in which its front end is close to said rear post (31), and a position closure of said circulation passage (32) in which its front end is close to said front post (30), said leaf (34) comprising a lower beam (340) carrying at its front end first guide means (35) cooperating with said guide rail (33); second guide means (80, 81) cooperating with said lower beam (340) and disposed near said rear pole (31); rear support means (100) of said leaf (34) arranged upstream of said rear pole (31) so that said leaf (34) is brought to rest on said rear support means (100) when it is moved in its open position. 2. Gate according to claim 1, wherein said leaf (34) is pivotally mounted about a horizontal axis and orthogonal to its sliding axis, said leaf (34) bearing: said first guide means (35) and said second guide means (80, 81) when its center of gravity G is located between said front post (30) and said second guide means (80, 81), and on said second guide means (80, 81) and on said rear support means (100) when its center of gravity G is located between said second guide means (80, 81) and said rear support means (100). A gate according to claim 1 or 2, wherein said rear support means (100) is arranged such that when the center of gravity G of said leaf (34) passes said second guide means (80, 81) to during the movement of said leaf (34) to its open position, said rear support means (100) are located under the rear end of said leaf (34). A gate as claimed in any one of claims 1 to 3, wherein said lower beam (340) is hollow and has a downwardly oriented longitudinal opening (90), said second guide means including at least one roller (80). 81) housed within said lower beam (340) and contacting at least some of the inner walls (92, 93, 94) of said lower beam (340), said at least one roller (80) , 81) being secured to a fixed support (82) passing through said opening (90). 5. Gate according to claim 4, wherein said second guide means comprise at least a first roller (80) rotatably mounted about a substantially vertical axis orthogonal to the axis of sliding of said leaf (34) and a second roller (81) rotatably mounted about a substantially horizontal axis orthogonal to the axis of sliding of said leaf (34). 6. Gate according to any one of claims 1 to 5, wherein said rear support means comprises a roller (100) rotatably mounted according to a horizontal axis orthogonal to the axis of sliding of said leaf (34). 7. Gate according to any one of claims 1 to 6, wherein said first guide means comprise a guide wheel (35) rotatably mounted relative to said lower beam (340) around a substantially axis. horizontal orthogonal to the axis of sliding of said leaf. 8. Gate according to any one of claims 1 to 7, comprising sliding drive means of said leaf (34), said lower beam (340) being hollow and having a longitudinal opening (90) oriented downwards, said drive means comprising a rack (70) housed inside said lower beam (340) and secured thereto, a drive pinion (71) rotatably mounted about a substantially horizontal orthogonal axis; to the axis of sliding of said leaf (34) and meshing with said rack (70), said drive pinion (71) extending in the axis of said opening (90). 9. Gate according to claim 8, wherein said drive means comprises a motor (36) whose output shaft is connected to said drive pinion (71) by means of at least one pinion (361). 15 10. Gate according to claim 8 or 9, wherein said drive pinion (71) is integral with said fixed support (82).