NL2006089C2 - GUIDANCE SYSTEM FOR A SLIDING GATE AND SLIDING GATE CONTAINING SUCH A GUIDANCE SYSTEM. - Google Patents

Description

Guide system for a sliding gate and sliding gate comprising such a guide system

The present invention relates to a guide system for a profile, in particular a horizontal beam of a sliding gate, in which an axial guide channel with an upper and a lower wall is provided for guiding a set of rollers. The invention also relates to a sliding gate comprising such a guide system.

NL8302007 describes a sliding gate with a horizontal beam and a number of vertical bars. The horizontal girder is a tubular profile which is provided with a series of holes for receiving the vertical bars. The horizontal girder is shaped as a tubular profile, a longitudinal side of which is provided with a guide channel. The guide channel is formed with an upper and lower rib with a curved inner surface in which a roll can be received. The roller 20 is rotatably mounted and connected to a post via a shaft. Two rollers are provided which are connected at a distance from each other by a post. When the gate is shifted, the horizontal beam can be rolled back and forth along the posts because the rollers can roll in the guide channels. Furthermore, other systems are known in which multiple roles are used per post.

The problem with the systems of the prior art is that the profile used for the horizontal beam often has fairly large tolerances, in particular in the case of long sliding gates. As a result, the running characteristics of the guidance system are often not optimal.

2

The present invention has for its object to provide a guiding system of the type mentioned in the preamble with which the running properties can be improved.

To that end, the guiding system according to the invention is distinguished in that the guiding system comprises at least a first roll and a second roll, which first roll 10 is mounted to make rolling contact with the top wall of the guide channel and which second roll is mounted to make rolling contact with the bottom wall of the guide channel, wherein the first roll and / or the second roll is rotatably mounted about an eccentrically adjustable shaft.

15

By providing an eccentrically adjustable shaft, it is possible to rotate this shaft during assembly to adjust the height of the first and / or the second roll, ie the distance from the top wall and / or the bottom wall to the first and / or or the second role. In this way it will be possible to adjust the height in a simple and very accurate way to overcome possible tolerances.

Note that the guiding system according to the invention can be used in any guiding channel that can be provided with a profile that functions, for example, as a horizontal girder or vertical upright, in particular in a profile that functions as a horizontal girder of a gate. In the case that the guide channel runs vertically or obliquely, the person skilled in the art will understand that the upper and lower wall naturally extends obliquely or vertically.

3

According to a preferred embodiment, the eccentric shaft comprises a first shaft part and a parallel second shaft part. The first axle part is mounted eccentrically on the second axle part and the second axle part is mounted so as to be rotatable, such that a rotation of the second axle part causes a change in the height of the first axle part.

According to a preferred embodiment the system comprises a holder and the first roller is rotatably mounted around an axle part, the axle part being fixedly connected to the holder. The second roller is then mounted around the eccentrically adjustable shaft, which eccentrically adjustable shaft is also connected to the holder. This holder can for instance take the form of a mounting flange for mounting against a support or can be a casting.

The second roller is then typically rotatably mounted around a first axle part which is mounted centrally on a second axle part, the second axle part being rotatably connected to the holder.

20

According to a preferred embodiment, the second shaft part has an end part which protrudes through the holder and which can be fixed after rotation of this second shaft part. During assembly, therefore, the suitable height will first be adjusted, after which the second axle part is fixed.

According to a preferred embodiment, a ring is arranged around the end part of the second shaft part that protrudes through the holder, all such that a rotation of the ring 30 causes a rotation of the second shaft part. According to a preferred embodiment, an adjusting pin is provided which protrudes through the ring in the second shaft part for rotating the second shaft part. Such an adjustment pin 4 has the advantage that it is easy to handle and the adjustment can be carried out in a convenient manner by an installer. Those skilled in the art will, however, understand that other embodiments are conceivable that also allow good manageability. Note that it is also possible, for example, to make the second axle part thickened instead of a ring.

According to a preferred embodiment, the end part of the second shaft part is provided with an axial bore with a screw thread, such that after adjustment the second shaft part can be fixed against a wall of a post with the aid of a screw.

According to a preferred embodiment, the guide system further comprises a third roll. In this way a very stable guiding system is provided, in which one such system can suffice for guiding the horizontal beam of the gate. The first and the third roll 20 are then preferably mounted to make contact with an upper wall of the guide channel, while the second roll is mounted to make contact with a bottom wall. It is to be noted that an inverted construction in which the first and third roll make contact with the bottom wall is also possible. Furthermore, systems with more than three roles also fall within the scope of the invention.

According to a preferred embodiment, the system further comprises a set of track rollers, each track roll being rotatably mounted about a vertical axis and mounted to make contact with a side wall of the guide channel. In this way the running properties are further improved and good guidance can also be guaranteed in the horizontal direction. According to a possible embodiment, the set of track rolls comprises a first pair of track rolls mounted to make contact with a first side wall of the guide channel and a second pair of track rolls mounted to make contact with an opposite second side wall of the guide channel. The first pair of track rolls is then preferably mounted to make contact with the first side wall near an upper wall of the guide channel and second pair of track rolls to make contact with the second side wall near a bottom wall of the guide channel.

The invention further relates to a gate comprising a horizontal beam and a number of vertical bars, wherein the horizontal beam is provided with a guide channel, wherein the gate comprises a guide system according to one of the embodiments described above.

According to an advantageous embodiment, the horizontal beam is provided with a number of tension wires for tensioning the horizontal beam. The gate preferably comprises a lower and an upper horizontal beam, and the guide system is preferably provided for the lower horizontal beam.

According to a possible embodiment which is particularly useful for long gates, the or each horizontal girder can be made up of a plurality of tubular sections connecting to each other. Each sleeve profile is then preferably aligned with respect to an adjacent sleeve profile with the aid of a plurality of centering pins, wherein each centering pin projects partly into a first sleeve profile and partly into an adjacent second copper profile of the plurality of sleeve profiles, and wherein at least one tensioning wire 6 profiles. Such a centering pin can be designed as described in detail in the applicant's patent application with the title "Anchoring assembly and port comprising such an assembly" which was filed on the same day as the present application. The text of this application is hereby incorporated in its entirety by reference.

The present invention will be further elucidated on the basis of a number of by no means limiting exemplary embodiments of an anchoring assembly and gate according to the invention with reference to the attached drawing. The drawing shows in: Figure 1A a front view of an embodiment of a sliding gate according to the invention;

Figure 1B is a rear view of the sliding gate of Figure 1A;

Figure 1C is a top view of the sliding gate of Figure 2 IA;

Figure 1D shows a cross-section of the sliding gate of Figure 1A at the height of a support 7, along line D-D, after adjustment of the guide roller; and

Figure IE shows a cross-section of the sliding gate of figure IA at the height of a support 7, along line D-D, before adjustment of the guide roller;

Figures 2A and 2B show a cut-away perspective view of an embodiment of a guide system according to the invention, looking at a rear side and a front side of a holder, respectively;

Figure 2C shows a detail view of the axis of the second adjustable roller of the embodiment of Figures 2A and 2B; 7

Figures 3A and 3B are a perspective view of the guide system of Figures 2A and 2B, looking at the rear and front of a container, respectively; Figures 4A and 4B are a front view of the guide system 5 of Figures 2A and 2B, the adjustable roller being in a low and high position, respectively;

Figure 5 is a schematic perspective view of a second embodiment of a guidance system according to the invention.

Figures 1A-E illustrate a possible embodiment of a sliding gate 1 according to the invention. The sliding gate 1 is provided with a lower horizontal beam 2 and an upper horizontal beam 3. Note that it is also possible to provide only one horizontal beam 15 which is then typically mounted somewhat higher than the lower beam in the embodiment of Fig. IA . The lower and upper horizontal beams 2, 3 are each provided with a number of holes for mounting vertical bars 4 therein. In the embodiment shown, a large number of bars 4 are provided at a pitch distance from each other that is relatively small. According to another possible embodiment, the bars are at a greater distance from each other and plate filling, for example plate filling with perforations, is provided between the bars.

25

A number of tension wires, cables, or bars 5, 6 (see figure 1D) can be provided in the lower horizontal beam 2 for tensioning the horizontal beam 2 such that the deflection is limited. These tension wires 5, 6 are fixedly attached at one first end and can be clamped at their other end during the mounting of the gate. The tension wires are typically included in receiving channels that extend along the length of the horizontal girder 2. The horizontal girder 2 is formed as a tubular profile, a longitudinal side 21 of which is formed with a guide channel 22. The guide channel 22 is formed with an upper wall 23, a bottom wall 24, a first side wall 25 and an opposite second side wall 26. The second side wall 26 is provided with an opening 27 which extends along the length of the guide channel 22. This opening 27 is measured for receiving therein a guide system for the making the horizontal beam 10 movable back and forth along support feet 7. In the embodiment shown, two support feet 7 are provided, but those skilled in the art will understand that more or fewer support feet may be provided depending on the length of the gate. The reciprocating sliding movement can for instance be realized with a rack-pinion pinion system 8, wherein the pinion is driven by a motor accommodated in a cupboard.

An embodiment of a guidance system according to the invention will now be described with reference to figures 1D-E, 2A-B, 3A-B, and 4A-B. The guide system 10 comprises a first roll 11, a second roll 12 and a third roll 13. The first and third roll 11, 13 are mounted to make rolling contact with the top wall 23 of the guide channel 22. The second roll 12 is mounted to rolling contact with the bottom wall 24 of the guide channel.

The first and third rollers 11, 13 are rotatably mounted around respective shaft parts 51, 53 which are mounted against a holder in the form of a mounting flange 40. The second roll 12 is mounted between the first and the third roll and is rotatably mounted around an eccentrically adjustable shaft 31, 32 for adjusting the height of the second roller 12. The eccentric shaft comprises a first shaft part 31 and a parallel second shaft part 32. The first shaft part 31 is eccentrically mounted on the second shaft part 32 (see figure 2C) and the second shaft part is rotatably mounted in mounting flange 40. A rotation of the second shaft part 32 will therefore change the height of the first shaft part and allow a setting of the desired height, see figures 4A and 4B where the second roller in a low and high position.

The second shaft part 32 has an end part which protrudes through the mounting flange and which can be fixed against a wall after adjustment. Here, the second shaft part 32 is fixed by means of a screw 37 through a wall of support foot 7, see Figs. 1D and IE. To this end, the end part of the second shaft part 32 is preferably provided with an axial bore 38 with screw thread. Optionally, a ring 33 can be arranged around the end part. In that case an adjusting pin 34 is advantageously provided which projects through the ring 33 into the second shaft part 32 for rotating the second shaft part. In this way a rotation of the ring by handling the adjusting pin 34 will cause a rotation of the second shaft part 32. In figure IE the guiding system is shown before setting of the second roll 12, and figure 1D shows the state in which the second roll 12 is rotated with the aid of the adjusting pin 34 and makes contact with the bottom wall 24.

Furthermore, the illustrated embodiment of the guidance system 10 comprises a set of track rolls 14, 14 '. Each track roller 14, 14 'is rotatably mounted about a vertical axis and is mounted to make contact with a side wall 26 of the guide channel. The set of track rollers 14, 14 'is mounted to make contact with the first side wall 26 of the guide channel near the top wall 23. According to a non-illustrated variant, a second pair of track rollers can be mounted to make contact with an opposite second side wall 25 of the guide channel near the bottom wall 24.

Although the illustrated embodiment uses three rollers, it will be understood by those skilled in the art that the invention is also applicable to a system with two rollers or with more than three rollers. Figure 5 illustrates an embodiment in which the guide channel 122 is provided at the bottom of a horizontal beam 102. The holder 140 is here provided on both sides with a pair of rollers 111, 112; 111 ', 112'. At least one roll of each pair of rollers is provided with an eccentrically adjustable shaft such that an accurate adjustment of the rollers is possible. Yet another variant may be to provide two support feet 7 along the sliding gate 1, each of which has a guide system with two rollers.

20

Those skilled in the art will understand that the invention is not limited to the exemplary embodiments described above and that many variants are conceivable which fall within the scope of the invention which is only determined by the following claims.

Claims (16)

Claims 1. Guidance system for a profile in which an axial guide channel with an upper and a lower wall is provided for guiding a set of rollers, characterized in that the guiding system comprises at least a first roll and a second roll, which first roll mounted is to make rolling contact with the top wall of the guide channel and which second roll is mounted to make rolling contact with the bottom wall of the guide channel, the first roll and / or the second roll being rotatably mounted about an eccentrically adjustable shaft for setting the height of the first and / or second roll respectively; the eccentric shaft comprising a first shaft part and a parallel second shaft part, which first shaft part is eccentrically mounted on the second shaft part, which second shaft part is rotatably mounted, such that a rotation of the second shaft part changes the height of the first shaft part 20, wherein the second shaft part has an end part which protrudes through the holder and which can be locked after adjustment, and wherein a ring is arranged around this end part, all such that a rotation of the ring causes a rotation of the second shaft part. 25 2. Guiding system as claimed in any of the foregoing claims, characterized in that the system comprises a holder and that the first roller is rotatably mounted around an axle part, the axle part being fixedly connected to the holder, and that the second roller is around the eccentric adjustable shaft is journalled, which eccentrically adjustable shaft is connected to the holder. 3. Guiding system as claimed in claim 2, characterized in that the second roller is rotatably mounted around a first axle part, which first axle part is mounted centrally on a second axle part, which second axle part is rotatably connected to the holder. 4. Guiding system according to claim 1, characterized in that an adjusting pin is provided which protrudes through the ring in the second axle part for rotating the second axle part. 5. Guiding system as claimed in any of the claims 1-4, characterized in that the end part of the second shaft part is provided with an axial bore with screw thread, such that after adjustment the second shaft part can be fixed against a wall of a post. Guiding system according to one of the preceding claims, characterized in that the system further comprises a third roll. 20 7. Guiding system as claimed in claim 6, characterized in that the third roller is mounted to make contact with an upper wall of the guide channel and that the second roller is rotatably mounted about an eccentrically adjustable shaft. 25 8. Guiding system as claimed in any of the foregoing claims, characterized in that the system further comprises a set of track rollers, each track roll being rotatably mounted about an axis perpendicular to the top / bottom wall and mounted to make contact with a side wall of the guide channel. 9. Guiding system according to claim 8, characterized in that the set of track rollers comprises a first pair of track rollers mounted to make contact with a first side wall of the guide channel and a second pair of track rollers mounted to make contact with an opposite second side wall of the guide channel. 10. Guiding system according to claim 8, characterized in that a first pair of track rollers is mounted to make contact with a first side wall near an upper wall of the guide channel. 11. Gate comprising a horizontal beam and a number of vertical bars or connecting means, wherein the horizontal beam is provided with a guide channel, the gate comprising a guide system according to any one of the preceding claims, wherein the first and the second wheel are in contact with a bottom and top wall of the guide channel are mounted. 20 Gate as claimed in claim 11, characterized in that the horizontal beam is provided with a number of tensioning wires for tensioning the horizontal beam. Gate according to claim 11 or 12, characterized in that the gate comprises a lower and an upper horizontal beam, and in that the guide system is provided for the lower horizontal beam. Gate as claimed in any of the claims 11-13, characterized in that the horizontal beam is made up of a plurality of tubular sections connecting to each other. 15. Gate as claimed in any of the claims 11-13, characterized in that the horizontal girder is a lower horizontal girder and that the gate further comprises an upper horizontal girder, wherein the lower and upper horizontal girder 5 are each composed of several superimposed on each other connecting tube profiles. 16. Gate as claimed in claim 14 or 15, characterized in that each tube profile is aligned with respect to an adjacent tube profile with the aid of a plurality of centering pins, wherein each centering pin is partly in a first tube profile and partly in an adjacent second copper profile of the plurality of tube profiles and wherein at least one tension wire clamps the plurality of profiles 15 together.