BOLLARD

Abstract

A bollard device (1) comprising an outer bollard member (2) and an inner bollard member (3) which is provided to be displaceable between a retracted position wherein the inner bollard member (3) substantially extends within an interior space (4) of the outer bollard member (2), and an extended position wherein part of the inner bollard member (3) extends above the outer bollard member (2) wherein the inner bollard member (3) comprises an upper part (5) and a lower part (6), wherein in the extended position the upper part (5) substantially extends above the outer bollard member (2) and the lower part (6) substantially extends within the interior space (4), wherein the lower part (6) of the inner bollard member (3) comprises at least two reinforcement elements (10a, 10b) wherein these reinforcement elements (10a, 10b) form protrusions of the inner bollard member (3).

Claims

1. A bollard device (1) comprising an outer bollard member (2) which is provided to be anchored into the ground and a longitudinal inner bollard member (3) which is provided to be displaceable according to an upright direction between a retracted position wherein the inner bollard member (3) substantially extends within an interior space (4) of the outer bollard member (2), and an extended position wherein an upper part (5) of the inner bollard member (3) extends above the outer bollard member (2) and forms an obstacle for preventing the passage of a vehicle, wherein in the extended position the upper part (5) substantially extends above the outer bollard member (2) and a lower part (6) of the inner bollard member (3) substantially extends within the interior space (4) of the outer bollard member (2), wherein the lower part (6) of the inner bollard member (3) comprises at least two reinforcement elements (10a, 10b) which are located at a distance from each other with regard to the longitudinal direction of the inner bollard member (3), wherein these reinforcement elements (10a, 10b) form protrusions of the inner bollard member (3) which are directed outwards and form partly the outer surface of said inner bollard member (3).

2. The bollard device (1) according to claim 1, wherein the upper part (5) and the lower part (6) together enclose a cavity (7) which is accessible from the bottom of the inner bollard member (3) and wherein the bollard device (1) comprises displacing means (8, 9) for displacing the inner bollard member (3), wherein at least one of the said displacing means (8, 9) is substantially located inside the said cavity (7) in the retracted position.

3. The bollard device (1) according to claim 1, wherein the extended position, at the height of each said reinforcement element (10a, 10b) and according to a plane perpendicular to the upright direction, at least one outer dimension of the inner bollard member (3) corresponds to the corresponding dimension of the interior space (4) of the outer bollard member (2).

4. The bollard device (1) according to claim 1, wherein a said reinforcement element (10a, 10b), according to a plane perpendicular to the longitudinal direction of the inner bollard member (3) and at the height of said reinforcement element (10a, 10b), forms substantially the whole circumference of the inner bollard member (3).

5. The bollard device (1) according to claim 1, wherein the outer bollard member (2) comprises a shaft, which forms the said interior space (4) of the outer bollard member (2), wherein the cross section of the shaft over substantially its entire length is similar and in which the outer dimensions of the circumference of the inner bollard member (3) at the height of the reinforcement elements (10a, 10b), corresponds to the dimensions of said cross section of the shaft.

6. The bollard device (1) according to claim 2, wherein the inner bollard member (3) has a longitudinal base element (18) which forms the said cavity (7), wherein the reinforcement elements (10a, 10b) lie against the outside of said base element (18).

7. The bollard device (1) according to claim 5, wherein the bollard device (1) comprises a cover (21) to partially cover up the top of the shaft wherein this cover (21) extends partly into the shaft and comprises an opening with a cross section which corresponds to the cross section of the longitudinal base element (18) such that during the displacement of the inner bollard member (3) from the retracted position to the extended position, the longitudinal base element (18) will pass trough said opening until a said reinforcement element (10a) contacts the cover (21).

8. The bollard device (1) according to claim 1, wherein the inner bollard member (3) comprises at least one upright extending bar element (11), wherein this bar element (11) also forms a protrusion of the outer surface of the inner bollard member (3) which is directed outwards and which is preferably located between the said at least two reinforcement elements (10a, 10b).

9. The bollard device (1) according to claim 1, wherein the inner bollard member (3) comprises at least one upright extending sliding bar (12), wherein this sliding bar (12) forms a protrusion of the outer surface of the inner bollard member (3) which is directed outwards, for facilitating the displacement of the inner bollard member (3).

10. The bollard device (1) according to claim 2, wherein the displacement means comprise a motor (8), wherein this motor (8) is located inside the said cavity (7) in the retracted position and in the extended position of the inner bollard member (3).

11. The bollard device (1) according to according to claim 2, wherein the bollard device (1) comprises a stationary pillar (13) which is situated within the interior space (4) of the outer bollard member (2), wherein at least some the said displacement means are connected to said pillar (13).

12. The bollard device (1) according to claim 11, wherein the pillar (13) extends according to the upright direction and the displacement means comprise among others a chain and a sprocket, wherein this chain and this sprocket are connected to the pillar (13).

13. The bollard device (1) according to claim 10, and wherein the motor (8) rests upon the pillar (13).

14. The bollard device (1) according to claim 1, wherein the lower part (6) of the inner bollard member (3) is connected to at least one of the displacement means, such that the inner bollard member (3) is displaceable.

15. The bollard device (1) according to claim 1, wherein the outer bollard member (2) comprises at least two strengthening elements (15a, 15b), which are located at a distance from each other with regard to the upright direction, wherein these strengthening elements (15a, 15b) form protrusions of the outer bollard member (2) which are directed outwards and form partly the outer surface of said outer bollard member (2), and wherein, in the extended position, at least one strengthening element (15a, 15b) is located at the height of a respective reinforcement element (10a, 10b).

16. The bollard device (1) according to claim 15, wherein the outer bollard member (2) comprises at least one upright extending support element (16) which connects the said at least two strengthening elements (15a, 15b), wherein this support element (16) also forms a protrusion of the outer surface of the outer bollard member (2) which is directed outwards.

17. The bollard device (1) according to claim 1, the outer bollard member (2) comprises a passage (17) which connects the interior space (4) with the outside which surrounds the outer bollard member (2), such that water can flow from the interior space (4) to the outside.

18. The bollard device (1) according to claim 1, wherein the interior space (4) has a cylindrical shape and the reinforcement elements (10a, 10b) have a circular circumference.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In this detailed description, reference is made by means of reference numerals to the appended drawings, wherein

[0030] FIG. 1 shows a cross section of a bollard device according to the invention, wherein the inner bollard member is in the retracted position;

[0031] FIG. 2 shows a cross section of the bollard device shown in FIG. 1, wherein the inner bollard member is in the extended position;

[0032] FIG. 3 shows a front view of the bollard device as shown in FIG. 1, wherein the inner bollard member is in the retracted position;

[0033] FIG. 4 shows a perspective view of the bollard device as shown in FIG. 1, wherein the inner bollard member is in the retracted position;

[0034] FIG. 5 shows a front view of the bollard device as shown in FIG. 1, wherein the inner bollard member is in the extended position;

[0035] FIG. 6 shows an exploded view of the bollard device as shown in FIG. 1;

[0036] FIG. 7 shows a perspective view of the inner bollard member of the bollard device shown in FIG. 1;

[0037] FIG. 8 shows a perspective view of the pillar and some displacement means of the bollard device shown in FIG. 1.

DETAILED DESCRIPTION

[0038] In the figures one embodiment of a bollard device (1) according to the invention is shown. The bollard device (1) comprises an inner bollard member (3), an outer bollard member (2), displacement means, a pillar (13), a cover plate (20) and a cover ring (21). This cover ring (21) comprises a lower part, namely a ring shaped element, which is made out of steel, such that the cover ring (21) is sufficiently strong.

[0039] The longitudinal outer bollard member (2) is provided to extend vertical in use. This outer bollard member (2) is among others clearly visible in FIGS. 2, 3 and 6. The outer bollard member (2) comprises a tubular main element (25) which extends according to the longitudinal direction of the outer bollard member (2), two annular shaped strengthening elements (15a, 15b) which lie around and against the outside of the main element (25) and are welded to the main element (25) in such a way that they both extend around the entire circumference of the main element (25) according to a plane perpendicular to said longitudinal direction. These two strengthening elements (15a, 15b) are located at a distance from each other according to said longitudinal direction and a first said strengthening element (15a) is located at the height of the top of the outer bollard member (2) an a second said strengthening element (15b) is located below said first strengthening element (15a). The outer bollard member (2) further comprises several bar shaped support elements (16) which lie against the main element (25) and are welded to the main element (25), wherein the support elements (16) extend according to the longitudinal direction, extend between the strengthening elements (15a, 15b) and are in contact with both strengthening elements (15a, 15b). The outer bollard member (2) further comprises two beams (19) which are connected to the main element (25) just below the first strengthening member (15a) and which are provided to extend in a horizontal direction, and a holder (24) for electrical components such as control elements for controlling the movement of the inner bollard member (3). The main element (25) encloses, together with a base plate (22) of the outer bollard member (2) which is connected to the bottom of the main element (25), a cylindrical shaped interior space (4). The main element (25) comprises passages (17) just above the base plate (22) which connect the interior space (4) with the outside. With the aid of the base plate (22) the outer bollard member (2) can be placed upon the bottom of an excavated ditch and the outer bollard member (2) further comprises leveling means (23) to level the main element (25) such that it extends according to a vertical direction. Here the cover plate (20) and the cover ring (21) are seen as separate parts of the bollard device (1), but they can also be seen as part of the outer bollard member (2). The outer bollard member (2) is anchored into the ground in such a way that the cover plate (20) and cover ring (21) lie in the plane of the road surface.

[0040] The inner bollard member (3), which is clearly visible in FIGS. 1, 2 and 7, comprises a tubular base element (18) with two openings at its ends which give access to the cavity (7) that it surrounded by the tubular base element (18). The opening at the top is closed off by a disk. In FIG. 7 this disk is not shown. The cavity (7) is therefore only accessible from the bottom. The inner bollard member (3) further comprises two reinforcement elements (10a, 10b), bar elements (11) and sliding bars (12). The inner bollard member (3) comprises an upper part (5) and a lower part (6), wherein in the extended position the upper part (5) substantially extends above the outer bollard member (2) and the lower part (6) substantially extends within the interior space (4) of the outer bollard member (2). The upper part (5) is only formed by the base element (18) and the said disk. At the height of the upper part (5), the base element (18) can be coated such that the upper part (5) of the inner bollard member (3), which is visible in the extended position, is esthetically pleasing. The lower part (6) comprises part of the base element (18) and the reinforcement elements (10a, 10b), bar elements (11) and sliding bars (12), which are connected to said part of the base element (18). The reinforcement elements (10a, 10b) are rings which surround the base element (18) and are welded to the base element (18). They extend at a distance from each other according to the longitudinal direction of the base element (18). In the extended position a first said reinforcement element (10a) extends just below the road surface. The bar elements (11) lie between the reinforcement elements (10a, 10b), extend upright, are welded to the base element (18) and lie against both reinforcement elements (10a, 10b). The sliding bars (12) extend upright, lie between the reinforcement elements (10a, 10b) and are connected with bolts and nuts to the base element (18). The section (14) of the lower part (6) that lies beneath a said second reinforcement element (10b) is connected to and rests upon a support plate (9) of the displacement means (see further). The outer diameter of the reinforcement elements (10a, 10b) substantially corresponds to the inner diameter of the main element (25) such that the inner bollard member (3) is guidingly movable according to the vertical direction between its retracted position and its extended position and vice versa.

[0041] The bollard device (1) also comprises a pillar (13) and displacement means to displace the inner bollard member (3) from its retracted position to its extended position and vice versa. The pillar (13) rests upon the base plate (22) of the outer bollard member (2), extends upright and is located centrally in the interior space (4). The displacement means comprise among other, a motor (8), a chain (not shown) which is displaceable by said motor (8), the support plate (9) upon which the said section (14) of the lower part (6) of the inner bollard member (3) rests and to which the said lower part (6) is connected, and wherein said support plate (9) is connected to the chain and follows the movement of the chain, control means which control the motor (8). These control means are situated in the holder (24) and are connected to the motor (8). These control means can for example control the motor (8) in such a way that the position of the inner bollard member (3) depends upon the day, the hour, etc. The cover plate (20) closes of the holder (24) such that the control means are still accessible once the bollard device (1) is installed in place. These control means can for example be operated wireless, such that for example when a priority vehicle needs to pass, one can quickly place the inner bollard member (3) in its desired position.

[0042] The inner bollard member (3) is arranged movable in the interior space (4) of the outer bollard member (2) in such a way that the inner bollard member (3) is displaceable between its retracted position, wherein the inner bollard member (3) is substantially located inside the interior space (4) and the disk lies in the plane of the road surface, and its extended position wherein the upper part (5) of the inner bollard member (3) substantially is located above the road surface and forms an obstacle for vehicles. In the extended position, the reinforcement elements (10a, 10b) are located at the height of the respective strengthening elements (15a, 15b). The cover ring (21) surrounds an opening with a diameter that corresponds to the diameter of the base element (18) such that the upper part (5) of the inner bollard member (3) can pass trough said opening. The outer diameter of the first reinforcement element (10a) is greater than the diameter op said opening, such that the cover ring (21) prevents the displacement of the lower part (6) of the inner bollard member (3) above the road surface and the lower part (6) is located in the interior space (4) in all the positions of the inner bollard member (3).

[0043] The installation of the bollard device (1) to close off a road can be as following. First a ditch is dug out, such that the outer bollard member (2) can be anchored in the ground in such a way that the cover plate (20) and cover ring (21) lie in the plane of the road surface. The outer bollard member (2) is placed on the bottom of the excavated ditch, which can for example be a concrete ground plate. With the aid of the leveling means (23) it is ensured that the main element (25) extends according to a vertical direction. To anchor the outer bollard member (2), concrete and reinforcement meshes are used. The reinforcement meshes are connected to the beams (19). With the aid of this beams (19), several bollard devices (1) can be connected to each other. Then the pillar (13), the displacement means and the inner bollard member (3) are placed inside the outer bollard member (2) and the section (14) of the inner bollard member (3) is connected to the support plate (9). The cover plate (20) is attached to the holder (24) and the cover ring (21) is attached to an attachment plane (26) of the outer bollard member (2) in such a way that the opening of the cover ring (21) surrounds the upper part (5) of the inner bollard member (3) at the height of the disk in the retracted position of the inner bollard member (3), such that the lower part (6) of the inner bollard member (3) cannot pass the cover ring (21).

[0044] The different elements of the bollard device (1), except for the sliding bars (12) and the displacements means (8, 9), are substantially made out of steel. The reinforcement elements (10a, 10b), the strengthening elements (15a, 15b) and the bar elements (11) are made out of a stronger steel then the main element (25) and the base element (18). The sliding bars (12) are made out of a synthetic material which is strong and suitable to guide the inner bollard member (3) during its displacement, such as polyoxymethylene.