Temporary Barrier
A temporary barrier is described which comprises a barrier panel (12) supported upon feet (14), wherein the barrier panel (12) comprises a plurality of barrier panel components (16, 18), the barrier panel components (16, 18) being arranged side-by-side and being secured to one another using an upper elongate reinforcing member (20), the panel components (16, 18) being of plastics material form.
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This invention relates to a temporary barrier, and in particular to a temporary barrier intended to restrict pedestrian access to predetermined areas.
There are a number of applications in which it is desired to restrict pedestrian access to areas. By way of example, temporary barriers are commonly used in crowd control and management applications, to restrict access to areas in which works are being undertaken or in which equipment is being stored, or for other purposes. In such applications, one form of temporary barrier in common use takes the form of a steel barrier panel supported upon a pair of feet. Each foot takes the form of an inverted V-shaped tubular steel element, the apex of which is welded or otherwise secured to the panel. The panel takes the form of a length of steel tube bent to take on a substantially rectangular form defining upper and lower rails, and end posts. A series of uprights are welded between the upper and lower rails, the uprights each extending substantially parallel to the end posts.
Such temporary barriers are relatively expensive and heavy, being fabricated from steel. Furthermore, if excessive loadings are applied to parts thereof, for example if the feet thereof are run over by a vehicle, they tend to become permanently bent which can lead to the barriers becoming difficult to nest or stack for efficient transportation and storage, and may also result in the barriers having sharp projecting parts that could present a hazard to pedestrians close to the barrier.
One option for reducing the weight and cost of the barrier may be to fabricate it from plastics materials. However, the barrier panel is typically of sufficiently large dimensions that manufacture thereof by injection moulding or the like is not practical.
It is an object of the invention to provide a temporary barrier in which at least some of the disadvantages associated with known arrangements are overcome or are of reduced effect.
According to the present invention there is provided a temporary barrier comprising a barrier panel supported upon feet, wherein the barrier panel comprises a plurality of panel barrier components, the barrier panel components being arranged side-by-side and being secured to one another using an upper elongate reinforcing members at a panel edge opposite the feet, the panel components being of plastics material form.
The upper reinforcing member is preferably of a length sufficient that it extends over at least half the width of the barrier panel. More preferably, it extends over at least three quarters of the width of the barrier panel. The upper reinforcing member is preferably of pultruded or extruded form. It is preferably of a fibre reinforced plastics material.
The barrier panel may comprise a first barrier panel component and a second barrier panel component. The barrier panel may comprise more than two barrier panel components.
It will be appreciated that by fabricating the barrier panel in the form of two or more panel components arranged side-by-side, fabrication using a moulding process is simplified as the size of each component to be moulded is much reduced compared to a single-panel mould for a barrier panel of the same size as the combined assembled barrier panel components. Using a reinforcing member at or close to the panel edge opposite the feet, i.e. the upper edge of the panel when the panel is supported on its feet, to secure the panel components to one another results in the panel being of good strength, resistant to bending as a result of the application of side loadings thereto.
The reinforcing members provide a strong connection between the components and resist bending at the joint between the panel components and bending of each individual panel component. An upper reinforcing member, ie a reinforcing member at the upper edge, provides a structural support at the location of the panel that is subjected to the relatively frequent loads, in particular persons leaning on the panel and/or staff carrying the panel.
In some embodiments, the barrier panel components are further secured to one another using a lower reinforcing member.
The lower reinforcing member is preferably provided at or near a lower panel edge, i.e. the edge on which the feet are located. The provision of a lower reinforcing member in addition to the upper reinforcing member increases the stability of the barrier further.
In some embodiments, one or more panel components comprise an upper rail, a lower rail and a series of two or more uprights extending between the upper and lower rails and extending substantially parallel to the end post.
The uprights are spaced apart to provide, in use, vertical barrier elements.
In some embodiments, one or more panel components comprise an end post. In a two-panel-component barrier, each panel component may comprise an end post.
The upper rail is preferably of hollow form and may have windows formed therein through which the hollow interior thereof is exposed. The windows opening to one face of the panel component are preferably arranged to alternate with those opening to the opposite face of the panel component with the result that the upper rail is of shut through form. Such a form is relatively simple to manufacture using moulding techniques.
The upper reinforcing member is preferably located within the hollow interiors of the upper rail.
Similarly, the lower rail is preferably of hollow form, having windows formed therein arranged in an alternating fashion. The lower rail may be provided with engaging features configured to allow adjacent barrier panel components to mutually engage each other at the lower rail. By way of example, they may be secured in position using screws, nuts and bolts or other threaded fasteners, rivets, or adhesives.
If present, the lower reinforcing member is preferably located within the hollow interiors of the lower rail.
The, or both, reinforcing members may be secured in position using any suitable technique. By way of example, they may be secured in position using screws, nuts and bolts or other threaded fasteners, rivets, or adhesives.
The reinforcing members are preferably positioned at or near the upper and lower edges of the barrier panel. In use, horizontal features may be used as stepping features, in the manner of ladder rungs that could be used to climb the barrier. By providing the reinforcing members vertically spaced apart as much as possible, for instance with a distance of around 70-100 cm between the upper and lower edges, they are less suitable for climbing.
Certain of the uprights are preferably of hollow, tubular form. They may be provided with alternating windows in a manner similar to the upper and lower rails. Preferably, upright reinforcing members are located within the hollow interiors of these ones of the uprights. The feet may be mounted upon projecting lower ends of the upright reinforcing members. The upright reinforcing members are conveniently of circular cross-section, received in such a manner as to be rotatable relative to the panel components. Rotation or angular movement of the reinforcing members may allow rotation or angular movement of the feet to occur, for example to allow the feet to be moved to a stowed position for transportation or storage.
The panel components are conveniently of moulded plastics material form. In one embodiment, the temporary barrier comprises two panel components that are identical to one another, allowing these panel components to be fabricated using a single mould. In one embodiment, the temporary barrier comprises two types of panel components wherein the panels of each type are identical, allowing the panel components to be fabricated using two mould types. For instance, a panel may comprise two end-barrier panel components and one or more mid-barrier panel components. In that case, the two end barrier panel components may be identical and the mid-barrier panel components may be identical to each other. However, this need not always be the case.
In one embodiment, the temporary barrier comprises two or more rows of panel components. For instance, temporary barrier may comprise two rows, a lower row of two panel components and an upper row of two panel components, in a 2 by 2 configuration. The panels of two adjacent rows may be stabilised by a central reinforcing member. The central reinforcing member may extend horizontally. The central reinforcing member may constitute an upper reinforcing member for the lower row and a lower reinforcing member for the upper row. The central reinforcing member may extend vertically. It will be understood that a temporary barrier with a 2 by 2 configuration comprises four panel components. The panel components may be identical to each other, each with two outer edges and two inner edges, arranged and rotated such that the panels abut at their inner edges. It will be understood that a temporary barrier may have any number of rows. The number of panel components per row may differ. The type of panel components may differ. For instance, a temporary barrier may comprise a lower row of 8 barrier-type panel components arranged side-by-side and an upper row of 2 fence-type panel components arranged side-by-side.
In some embodiments, two or more panel components are self-complementary to each other.
Barrier panel components, for instance if made from the same mould, may be identical in shape. In that case, it is preferable if they are or comprise self-complementary portions. Such self-complementary portions may be, preferably, in the component-to-component engaging surfaces, such that a component of the same shape can engage with another component of the same shape. Having panel components of the same shape facilitates assembly, as a barrier panel can be assembled from any of the identical components, without having to check that the correct corresponding components were selected, because complementary components correspond to each other.
In some embodiments, one or more panel components have C2 rotational symmetry about an axis extending perpendicular to the upper and lower edges of the panel component.
It will be understood that the upper and lower edges are those edges of a panel that, after assembly, are facing up or down when the barrier panel is supported on its feet.
This facilities assembly because a panel component does not need to be oriented with a particular side to the left or right.
In some embodiments, one or more panel components have C2 rotational symmetry about an axis midway between the upper and lower edges of the panel component.
This facilities assembly because a panel component does not need to be oriented with a particular side facing up.
In embodiments, the end most ones of the uprights are moulded with engaging features that, in use, cooperate with the end most upright of the other of the panel components.
Preferably, if integrally moulded, the engaging features are self-complementary to allow and end panel component to interact with a 180-degree rotated end panel component of identical shape. In some embodiments, engaging features may be fixed to a panel component after moulding. This facilitates the use of the same mould type while allowing differing engagement features (such as hook and latch type engagements).
The invention will further be described, by way of example, with reference to the accompanying drawings, in which:
Referring to
The panel 12 is of multi-part form, comprising a first panel component 16 and a second panel component 18 arranged in a side-by-side configuration and secured to one another using an upper elongate reinforcing member 20. Optionally, the first and second panel components may be further secured to one another using, as shown herein, a lower elongate reinforcing member 22. The panel components 16, 18 are of moulded plastics material form manufactured by, for example, injection moulding. It will be appreciated that, as the panel 12 is of multi-part form, and in particular as it is made up of first and second panel components 16, 18, the components of the panel 12 are each of sufficiently small dimensions that they can readily be manufactured using injection moulding or compression moulding techniques, for example.
The panel components 16, 18 are substantially identical to one another, and so only one of them will be described herein in further detail with reference to
As shown in
The upper and lower rails 24, 26 are of substantially square cross-section, hollow form, as shown in
The end post 28 is of H-shaped cross-sectional form, as shown in
As illustrated in
The reinforcing members 20, 22 are of hollow, substantially square cross-sectional shape, of dimensions allowing them to be fitted within the hollow rails 24, 26. Conveniently, they are of pultruded or extruded form, preferably of a fibre reinforced plastics material. The material is conveniently brightly coloured. It will be appreciated that with the reinforcing members 20, 22 positioned within the hollow rails 24, 26, parts of the reinforcing members 20, 22 will be exposed, to be visible through the windows 32, as illustrated in
As shown in
It will be appreciated that with the reinforcing members 20, 22 secured in position, the reinforcing members 20, 22 serve to secure the panel components 16, 18 to one another. Furthermore, they provide reinforcement or strengthening to the panel 12, resisting bending or deformation of parts thereof. The position of the reinforcing members 20, 22 near the upper and lower edges, respectively, provides a climb-impeding configuration because of the absence of stepping surfaces between the upper and lower rail.
Upright reinforcing members 36, 38 are located within the hollow uprights 30, and have the feet 14 fitted to the lower ends thereof. The upright reinforcing members 36, 38 are of circular cross-sectional shape and are free to rotate relative to the associated uprights 30. Consequently, the feet 14 attached thereto may be rotated between in use and stowed positions. The upright reinforcing members may have other suitable profiles, for instance a square profile.
Turning to
The temporary barrier 10A comprises a barrier panel 12A supported on two feet 14A. The barrier panel 12A comprises two end panel components 16A which are identical to each other and constitute a first type of panel component, and a plurality (here: six) of mid panel components 18A that are identical to each other and constitute a second type of panel component. The panel components 16A and 18A are arranged in side-by-side configuration and secured in succession by an upper reinforcement member 20A and a lower reinforcement member 22A, although it will be understood that the lower reinforcement member 22A may be optional. The end panel components 16A are reinforced by upright reinforcing members 36A and 38A, respectively. The panel components 16A and 18A are of moulded plastics material form manufactured, for instance, by injection moulding or compression moulding. Each of the panels is of smaller construction than the entire barrier panel 10, rendering it more readily suitable for manufacture by moulding.
As can be imagined, any number of mid-panel components, or no mid-panel component, may be used to manufacture a barrier panel of varying length. The
By providing the hooks and loops as attachable components, this allows the same mould to be used for both end barrier panel components and configuring one end panel component as hooked end and another end panel component as loop end. Preferably, each end panel component is provided with at least two connectors, e.g. two hooks and two loops, to provide a relatively stable quasi-hinged end-to-end connection. Preferably the hooks and loops are engagable with a reasonable degree of play to allow adjacent connected panels to tilt relative to each other while connected. This facilitates the provision of a series of connected barrier panels on uneven terrain.
The adapter 48A may be integral with a barrier panel component, e.g. integrally moulded. The adapter 48A may be fitted to the barrier panel component after moulding. In that case, the barrier panel component may have rotational symmetry about the horizontal axis, as it may be imagined, such that the end panel barrier components and any mid panel barrier components may be assembled with any side up and the foot adapters 48A are fitted post assembly.
The mid panel component 18A illustrated in
The mid panel component 18A has two-fold symmetry in the vertical and horizontal direction. This facilitates the assembly of a barrier panel 10A because the mid panel component 18A will be appropriately orientated with either side up or down and with either side left or right.
In embodiments, the upright reinforcing members 36, 38 are of box or H-profile cross-section and may be of rectangular or square profile. The upright reinforcing members 36, 38 may be solid or hollow. If the hollow channel of the upright 30 is generally rectangular, a corresponding rectangular and square profile of the upright reinforcing member provides a closer location of the reinforcing members 36, 38 at the windows 34. This improves visibility of contrasting colours, particularly if it is considered that the reinforcing member may already, by virtue of it being located in a channel, be recessed from the outer upright surface. The closer location of surfaces of the reinforcing members 36, 38 reduces the gaps that may otherwise be present with round reinforcing members, which reduces the risk of entrapment or the gaps being filled with litter. If the feet 14 are provided with round profile sockets to receive the reinforcing members, the feet are still rotatable even with non-round reinforcing members. Alternatively, the channel and upright reinforcing members 36, 38 may have a round profile.
The presence of the upright reinforcing members 36, 38 further strengthens or reinforces the panel 12.
The upright reinforcing members 36, 38, like the reinforcing members 20, 22, are preferably of fibre reinforced plastics material form, for example manufactured by pultrusion or extrusion.
In embodiments, the reinforcing members 20, 22 are of a length no longer than the distance between the upright reinforcing members 36, 38, so that the upright reinforcing members 36, 38 can be fitted before or after assembly of the two panel components 16, 18.
In embodiments, the upper reinforcing member 20A is longer than the lower reinforcing member 22A. For instance, the upper reinforcing member 20A may be longer than the distance between the upright reinforcing members 36A, 38A to provide increased stability of the upper rail 24A.
As illustrated in
The temporary barrier 10B comprises a barrier panel 12B, which comprises two rows, a lower row 17L and an upper row 17U, each row comprising two panel components 16B side-by-side, such there is a total of four panel components 16B. In the present example, each of the panel components 16B is identical, although this is not necessarily the case in every embodiment. Each panel components 16B is of generally rectangular, approximately square shape and comprises two outer rails, one outer rail at a horizontal edge and one outer rail on a vertical edge. The panel components 16B are arranged and rotated such that the inner edges of each panel components 16B face each other and the outer rails are at the outer edge of the barrier panel 12B. The rails are hollow and provided with windows. When assembled, the two outer edges at the top of the panel components 16B in the upper row 17U form an upper rail 24B, receiving an upper reinforcement member 20B. The outer edges at the side of the panel components 16B in the upper row 17U and in the lower row 17L provide a hollow upright rail, one hollow upright rail at either end of the barrier panel 12B, to receive upright reinforcing members 36B and 38B. Likewise, the two outer edges at the base of the panel components 16B in the lower row 17L form a lower rail 22B, receiving a lower reinforcement member 22B. The upper reinforcement member 20B is received within the upper rail 24B but portions of it are visible through windows 32B in the outer edges. Likewise, the upright reinforcing members 36B and 38B are visible through windows 34B in the outer edges, and the lower reinforcing member 22B received in the lower rail 26B is visible through windows 32B in the outer edges.
Between the upper row 17U and the lower row 17L there is provided a central reinforcing member 21B connecting the two rows. This provides stability to the temporary barrier 10B. Although not illustrated, the edges of the barrier panels 16B could be configured with alternatingly offset walls structures or hoops that can be engaged, for instance in alternating or overlapping fashion, to provide a common hollow channel for the central reinforcing member 21B. In that case, the walls structures may comprise windows in the manner of the upper and lower rails to allow portions of the central reinforcing member 21B to be visible.
As in the preceding figures, the upper and lower elongate reinforcing members 20B, 22B and upright reinforcing members 36B, 38B are illustrated with cross-hatching; the cross-hatching is intended to illustrate their visibility through alternating windows 32B and 34B in the barrier panel components 16B, but it will be understood that the reinforcing members may not necessarily exhibit a visible cross-hatching pattern, and may be of a single colour.
The panel components 16B are of moulded plastics material form manufactured, for instance, by injection moulding or compression moulding. Each of the panels 16B is of smaller construction than the entire barrier panel 10B, rendering it more readily suitable for manufacture by moulding.
The upright reinforcing members 36B and 38B extend from the lower row 17L to provide free ends 48B each for connection to a foot. Each free end 48B is provided with a foot structure 14B, and the foot structures 14B (here showing two feet 14B) can be slotted into a further support structure such as a base block.
Although described a 2 by 2 arrangement, any number of barrier panels may be provided side-by-side in a row. The number of barrier panels per row may differ. The temporary barrier 10B comprises panels of about 1×1 metre side length and measures about 2×2 metres. Several of such barrier panels 10B may be arranged, side-by-side, to form a temporary fence of any length. Although the barrier panel 1B is described with a central reinforcing member 21B that extends horizontally, some barrier panels may comprise a plurality of upright reinforcing members. A barrier panel may comprise both horizontal and vertical reinforcing members if arranged in a suitable way, for instance on opposite sides of the barrier panel to allow them to cross. Likewise, a barrier panel may comprise one or more diagonal reinforcing members, for instance two diagonal reinforcing members.
The temporary barrier 10, 10A and 10B described hereinbefore are advantageous in that, as it is of plastics material form, they are of relatively low weight and are of relatively low cost form. In the arrangement shown, the feet 14 are of low profile form and so do not present a significant trip hazard to pedestrians in the vicinity of the barrier. The plastics material of the barrier is of relatively good resilience, and so if subject to relatively low magnitude impacts will tend to deflect and subsequently return to substantially its original form. The manner in which it is fabricated lends itself to the use of injection moulding techniques through each component part being of relatively small dimensions.
Whilst selected forms of barrier are described and illustrated hereinbefore, a number of modifications and alterations may be made thereto without departing from the scope of the invention. By way of example, the rails could be of H-shaped section, with the reinforcing members attached to faces thereof rather than located within the hollow interior of the rails as illustrated. The reinforcing members, rails and uprights may be of other cross-sectional shapes to those illustrated. For instance, the rails and/or uprights may be of round cross-section to receive round reinforcing members. The reinforcing members may be solid or hollow. The reinforcing members may comprise hollow channels to receive additional reinforcing structures. The reinforcing members, i.e. the upper reinforcing member, one or both upright reinforcing members, and, if present, the lower reinforcing member may be made from or comprise metal.
If desired, the feet could be fitted to the lower rail rather than to the upright reinforcing members. The barrier panel may be provided with any number of feet. A panel with two feet allows for a configuration with the feet connected at the end panels.
Features described in relation to the
For instance, although not shown in
Barrier panels of the type described herein may have any length. A typical length of a pedestrian barrier may be in the region of 1.5 to 2 meters. Due to their likely length and because such barriers may be installed in uneven terrain they are described herein as being supported on feet. The feet may be constituted by base block elements, particularly if the barrier panels are to be installed on relatively even ground. However, the barrier panel may also be supported on a unitary base block of sufficient dimensions. Such a base block may itself comprise feet, for instance integral with the base block.
A number of other modifications may be made without departing from the scope of the invention as defined by the appended claims.
Claims
1. A temporary barrier comprising a barrier panel supported upon feet, wherein the barrier panel comprises a plurality of barrier panel components, the barrier panel components being arranged side-by-side and being secured to one another using an upper reinforcing member at a panel edge opposite the feet, the panel components being of plastics material form.
2. A barrier according to claim 1, wherein the upper reinforcing member is of a length sufficient that it extends over at least half the width of the barrier panel.
3. A barrier according to claim 2, wherein the upper reinforcing member is of a length sufficient that it extends over at least three quarters of the width of the barrier panel.
4. A barrier according to claim 1, wherein the upper reinforcing member is of pultruded form.
5. A barrier according to claim 1, wherein the upper reinforcing member is of a fibre reinforced plastics material.
6. A barrier according to claim 1, wherein the barrier panel components are further secured to one another using a lower reinforcing member.
7. A barrier according to claim 1, wherein one or more panel components comprise an upper rail, a lower rail, and a series of uprights extending between the upper and lower rails and extending substantially parallel to the end post.
8. A barrier according to claim 1, wherein one or more panel components comprise and end post.
9. A barrier according to claim 7, wherein the upper rail is of hollow form.
10. A barrier according to claim 7, wherein the upper rail has windows formed therein through which the hollow interior thereof is exposed.
11. A barrier according to claim 10, wherein the upper rail includes windows opening to one face of the panel component which are arranged to alternate with windows opening to the opposite face of the panel component.
12. A barrier according to claim 7, wherein the lower rail is of hollow form having windows formed therein through which the hollow interior thereof is exposed, and/or wherein the lower rail includes windows opening to one face of the panel component which are arranged to alternate with windows opening to the opposite face of the panel component.
13. A barrier according to claim 7, wherein the upper reinforcing member is located within the hollow interior of the upper rail, and/or wherein the lower reinforcing member is located within the hollow interior of the lower rail.
14. A barrier according to claim 7, wherein certain of the uprights are of hollow, tubular form provided with alternating windows.
15. A barrier according to claim 7, wherein upright reinforcing members are located within hollow interiors of certain ones of the uprights.
16. A barrier according to claim 15, wherein the feet are mounted upon projecting lower ends of the upright reinforcing members.
17. A barrier according to claim 1, wherein two or more panel components are self-complementary to each other.
18. A barrier according to claim 1, wherein one or more panel components have C2 rotational symmetry about an axis extending perpendicular to the upper and lower edges of the panel component, and/or wherein one or more panel components have C2 rotational symmetry about an axis midway between the upper and lower edges of the panel component.
19. A barrier according to claim 1, wherein the reinforcing members are secured in position using screws, nuts and bolts or other threaded fasteners, rivets, or adhesives.
20. A barrier according to claim 1, wherein the panel components are of moulded plastics material form, and wherein at least two panel components are identical to one another.
Type: Application
Filed: Apr 5, 2019
Publication Date: Feb 10, 2022
Applicant: Oxford Plastic Systems Limited (Oxfordshire)
Inventor: Christopher James Whiteley (Oxfordshire)
Application Number: 17/280,640