The present invention relates to slab edges. In particular, the present invention relates to balcony edges.
Concrete slabs, such as those found on balconies, have limited lifespans. They are built according to specifications which should provide a decades long life span. Unfortunately, often as a result of environmental conditions, the balconies must be replaced within 8-12 years. The process of re-finishing is labour, resource and time intensive for those re-furnishing the balconies. The re-furnishers must:
Also this process often times significantly inconveniences the individuals who use the balconies. The noise and dust created is often intolerable. The dust generated can sometimes permanently damage personal possessions.
The remains a need for a system and method for finishing a slab edge which mitigates or obviates at least some of the above-presented problems.
A slab edge casing for finishing a slab edge is provided. The casing comprises a face which defines a finished slab edge for an unfinished slab edge; and, a base which extends from the face. The base is connectable to one of a slab face that is adjacent the unfinished slab edge or is registerable with the unfinished slab edge. The face and base have respective inside surfaces that define a form into which concrete is poured and allowed to cure. In one embodiment, one of the face and base also comprise a reinforcing element mount for receiving a reinforcing element that extends from the unfinished slab edge.
The slab edge may be a balcony edge.
A kit for finishing a slab edge is provided. The kit comprises a casing, which in turn comprises a face which defines a finished slab edge for an unfinished slab edge and a base that extends from the face. The base may be connectable to a slab face adjacent the unfinished slab edge or registerable with the unfinished slab edge. The face and base having respective inside surfaces that define a form into which concrete is poured and allowed to cure. The casing also comprises a brace mount positioned on one of the inside surfaces. In one embodiment, one of the face and base comprises a reinforcing element mount for receiving a reinforcing element extending from the unfinished slab edge.
The kit also comprises a reinforcing element that is securable to the unfinished slab edge. The reinforcing element also comprises a brace mount. The kit also comprises a brace, extendable between the reinforcing element brace mount and the casing brace mount, and connectable to the respective mounts.
In one embodiment, the reinforcing element, when secured to the unfinished slab edge, extends from the unfinished slab edge to at least a terminal anchor point that corresponds to the finished slab edge.
The kit also comprises a brace, which is extendable between the reinforcing element brace mount and the casing brace mount, and connectable to the respective mounts.
A method for installing a slab edge is also provided. The method comprises the steps of:
securing a reinforcing element into the unfinished slab edge
connecting a casing to the reinforcing element. The casing defines the finished slab edge and defines a form into which concrete is poured and allowed to cure.
and, pouring the concrete into the form and allowing the concrete to cure. The casing remaining in position after the concrete has cured.
a) is a cross-sectional view of a finished slab edge in accordance with a first embodiment of the present invention;
b) is a cross-sectional view of a finished slab edge in accordance with a second embodiment of the present invention;
a) and 2(b) are cross-sectional views of alternate embodiments of a component of the finished slab edge of
a) is a plan view of a first corner portion of a finished slab edge in accordance with an embodiment of the present invention;
b) is a plan view of a first corner portion of a finished slab edge in accordance with an alternate embodiment of the present invention;
a) is a plan view of a second corner portion of a finished slab edge in accordance with an embodiment of the present invention;
b) is a plan view of a second corner portion of a finished slab edge in accordance with an alternate embodiment of the present invention;
a) is a cross-sectional view of a one embodiment of a portion of the slab edge casing of the present invention; and
b) is a cross-sectional view of a first face portion of the slab edge casing of the present invention.
Referring to
The finished slab edge 10 comprises a slab edge casing 11, which in turn comprises a face 13, the outside surface of which defines a finished slab edge 15 for an unfinished slab edge 17. The casing 11 also comprises a base 19, which extends from the casing face 13. The base 19 may be connectable to a slab face 21 adjacent the unfinished slab edge 17, as is illustrated in cross-section in
Referring again to
The casing 11 also preferably comprises a plurality of ribs 39, which extend from the inside surfaces 23. The ribs 39, which are preferably formed along with the casing 11 as a unitary structure, aid in securing the concrete in position within the form.
The finished slab edge 10 also comprises a reinforcing element 31, which is securable to the unfinished slab edge 17. The reinforcing element 31, when secured to the unfinished slab edge 17, extends from the unfinished slab edge 17 to a terminal end, which ends at a point that corresponds to at least the finished slab edge 15. Preferably, the reinforcing element 31 is securable within a hole (not shown) that has been drilled into the unfinished slab edge 17 or by other mechanical anchors known in the art.
In a first embodiment, the reinforcing element 31 comprises an anchor bolt 33 that is securable within the hole; a rod 35, which extends from the anchor bolt 33 to the terminal anchor point; and, a coupler 37, which connects the anchor bolt 33 to the rod 35. Preferably, the rod 35 is a threaded rod, a portion of which extends beyond the casing 11. The rod 35 is preferably composed of a steel, such as stainless steel. Alternately, the rod 35 is composed of a plastic. As will be apparent, the rod 35 may comprise any suitable material that is substantially inert to the environmental conditions of the installation.
Referring now to
Referring to
In a preferred embodiment, the lock 47 is also composed of a polymer that is resistant to the deteriorating effects of the environmental conditions of the slab installation. For example, the lock 47 may be composed to a suitable plastic.
Referring again to
The face 13 of the casing 11 preferably has a length (l) corresponding to the height of the slab edge 10. In order to accommodate varying slab heights, the face 13 may be cut to the required height at any point during the installation process. Alternately, and preferably, the casing face 13 comprises a first face portion 41 and a second face portion 43. The first and second portions (41, 43) are positionable with respect to each other and securable to each other at a position having a face length (l) corresponding to the slab height. Preferably, the first and second portions (41, 43) are slidably moveable with respect to each other. For example, referring to
The face 13 also preferably comprises a reinforcing element mount 25. Alternately, the base 19 comprises the reinforcing element mount 25, not shown.
The reinforcing element mount 25 may comprise a passage extending through the face 13, the rod 35 (or rod 77 as is illustrated in
The slab edge casing 11 further comprises a base mount 27, which is configured to receive securing means for securing the base 19 to the adjacent slab face 21. In a preferred embodiment, the base mount 27 is a passage extending through the base 19 and the securing means is a screw 29 (preferably a self tapping screw), which passes through the base mount 27 and into the slab face 21, thereby securing the base 19 to the slab face 21. In installation, the adjacent slab face 21 is pre-treated prior to the base 19 being secured. For example, the slab face 21 may be sandblasted or otherwise abraded. The base 19 is then secured with screws 29. Preferably, the base 19 is also glued to the adjacent slab face 21.
Still referring to
Preferably, the slab edge casing 11 comprises a second brace mount 55, also positioned on one of the inside surfaces 23, but, separate and apart from the first brace mount 49. The second brace mount 55 is connectable to a second brace 57, which extends from the reinforcing element 31. As will be apparent, the casing brace mounts 49, 55 may alternately be configured to function as additional casing ribs 39.
Still referring to
Referring to
In this alternate embodiment, the mounts 49, 51 are configured to receive the bar element. For example, as is illustrated in
The casing 11, as has been described above, is preferably composed of a FRP (Fiber Reinforced Polymer). In an alternate embodiment, the casing 11 may be composed of a PVC (polyvinyl chloride). The thickness of the PVC composed casing 11 compared to that of the FRP composed casing 11 will preferably be adjusted (increased) to compensate to PVC's relatively lower modulus of elasticity. In either case, respective thicknesses of the FRP and PVC casings 11 will be selected, taking in to account the materials' respective modulus of elasticity, to minimise any deflection of the casing 11 caused by the concrete. Deflection is kept at a minimum in order to maintain the visual presentation of the finished slab edge 15.
PVC, as a material for casing 11 construction, offers a number of advantages over FRP. One advantage is that PVC can be welded on site (in addition to being glued or cemented, as may also be required). Welding permits on site customization of the casing 11. It also reduces the number of welding plates that are required to connect casing pieces together, as in the corner portion of the finished slab edge, for example. An additional advantage of using PVC is that the face 13 and base 19 may be formed separately and welded on site to form the casing 11.
An embodiment of the present invention may alternately be characterized as a kit for finishing as unfinished slab edge. The kit comprises the casing 11, the reinforcing element 31 and a brace 53, as defined above, including the alternate embodiments. Preferably, the kit comprises a plurality of reinforcing elements 31 and a plurality of braces 53. For example, the kit may comprise an equal number of reinforcing elements 31 and braces 53.
Referring to
The corner casing 71 comprises adjacent faces 13, which define the finished slab edge 10. From each face 13, a respective base 19 extends. The bases 19 are either connectable to a slab face 21 adjacent the unfinished slab edge 17; or, registerable with the unfinished slab edge 17. The faces 13 and bases 19 have respective inside surfaces which define a form unto which concrete is poured and allowed to cure. Each face 13, base 19 pairing also comprises a reinforcing element mount 25 for receiving a respective reinforcing element 31 that extends from the unfinished slab edge 17. As stated previously, the casing 13 may further comprise base mounts 27 (not shown) for receiving securing means, such as self-tapping screws 29.
Also, as stated previously, the corner casing 71 may further comprise a brace mount 49 positioned on one of the inside surfaces 23 (not shown). The brace mount 49 is connectable to a brace 53 extending from the reinforcing element 31 (not shown). The corner casing 71 may additionally comprise a second brace mount 55 (not shown). As will be apparent, the corner casing 71 is comprised similarly to the casing 11. As such, it may comprise:
As with the casing 11, the face 13 of the corner casing 71 has a length corresponding to the slab height. Alternatively, the face 13 of the corner casing 71 may comprise the first face portion 41 and second face portion 43, as described above.
Referring to
Referring to
Referring to
Referring to
Referring to
Referring to
Step (a) may further comprise any one or a combination of the steps of:
Step (b) may further comprise any one or a combination of the steps of:
(d) connecting a brace 53 to a casing brace mount 49 and a reinforcing element brace mount 51. (Step 200(d)); and,
An alternative embodiment of the slab edge casing is shown in
As described above, each of the face 13 and the base 19 have respective inside surfaces 23, which define a form into which concrete is poured and allowed to cure.
The finished slab edge includes a reinforcing element 31, which is securable to the unfinished slab edge 17. The reinforcing element 31, when secured to the unfinished slab edge 17, extends from the unfinished slab edge 17 to a terminal end 32 located within the finished slab edge 10. The terminal end 32 is spaced from the inside surface 23 of the face 13. To secure the reinforcing element 31 to the unfinished slab edge 17, and within the slab face 21, the reinforcing element may include an anchor bolt 33, as shown in
The reinforcing element 31 includes at least one reinforcing brace mount 60 to which one or more braces 53 are connected. The reinforcing brace mount 60 may be located directly on the reinforcing element 31, or it may be positioned on a reinforcing bar 59 positioned between the finished and unfinished slab edges 15, 17. The reinforcing bar 59 and its location is described above.
The base 19 of the casing 11 may be connected to the adjacent slab face 21 as described above. Alternatively, the base 19 may be adhered to the slab face 21, using a suitable adhesive product, as shown generally at numeral 26, and additional securing means, such as a screw 29 may be used.
Located on the inside surface 23 of each of the base 19 and the face 13 of the casing 11 are a series of brace mounts, or ribs, 56 that extend inwardly from the inside surface(s) 23. The brace mounts 56 may be straight or curved and include a bulbous end portion 58 which aids in securing the concrete in position within the form. In addition, the end portion 58 of each brace mount 56 is configured to connect to a brace 53 extending between the brace mount 56 and the reinforcing brace mounts 60, 60a.
As can be seen in
As can be seen in
Turning to
The top part of the first portion 62 includes a top ledge 70 that extends substantially perpendicular to the second portion 64 and includes a curved end portion 72 that is configured to connect to a brace 53, as shown in
The lower part of the second portion 64 includes a drip edge 76 which extends beyond the base 19 to prevent water from dripping under the casing 11.
The method for finishing an unfinished slab edge will now be described with reference to the embodiment shown in
Step (a) may further comprise any one or a combination of the steps of:
Step (b) may further comprise any one or a combination of the steps of:
The above description is intended in an illustrative rather than restrictive sense. Variations may be apparent to those skilled in the art without departing from the spirit and scope of the invention as defined by the claims set out below.
Number | Date | Country | |
---|---|---|---|
Parent | 11750788 | May 2007 | US |
Child | 13094198 | US |