Concrete forms are used to frame an area where a concrete slab is to be formed. In many instances, a concrete forming stake may be used to hold a form in place while concrete is being poured. After the concrete is poured, the stakes further provide support while the concrete is curing. Conventional concrete forming stakes are steel rods having a spike on one end and a plurality of holes traversing the stake. The holes are nail holes in which a nail may be placed to secure the stake in place against the forms. In many instances, the stakes are hammered into an adjacent subgrade or surface at an angle with respect to the plane of the subgrade or surface to provide support and resistance to movement of the forms as the concrete is poured. Stakes may also be hammered into the subgrade or surface to position the stake at or near a position perpendicular to the plane of the surface.
Moreover, vapor barriers are occasionally used in concrete applications. The vapor barrier is placed underneath the area to be poured to provide resistance to or prevent moisture vapor from transmitting through the concrete into the building envelope. However, when used in conjunction with vapor barriers, the concrete forming stakes used to secure the forms puncture the vapor barrier and therein reduce the utility.
The Detailed Description is set forth with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The use of the same reference numbers in different figures indicates similar or identical items. Furthermore, the drawings may be considered as providing an approximate depiction of the relative sizes of the individual components within individual figures. However, the drawings are not to scale, and the relative sizes of the individual components, both within individual figures and between the different figures, may vary from what is depicted. In particular, some of the figures may depict components as a certain size or shape, while other figures may depict the same components on a larger scale or differently shaped for the sake of clarity.
Concrete forms are frequently supported and held in place by placing a nail through a predefined hole in a steel concrete stake that is hammered into a subgrade or surface. By hammering the stake into the subgrade or surface, the stakes support and resist movement of the forms. Such stakes, however, limit a user's placement of the nails into the concrete forms, as they may cause the user to have to position the stakes further into the ground and/or alternatively, rotate the stake such that a predefined hole in the stake aligns with the concrete forms. Moreover, in some instances, it may be inconvenient to place a stake into a particular surface given the composition of the surface. Furthermore, such stakes, when used in conjunction with a vapor barrier, pierce the barrier, thereby creating an avenue through which moisture vapor may pass and cause moisture related issues of floor coverings and other building components.
Accordingly, this disclosure is directed to a concrete forming apparatus for assisting in supporting concrete forms used in forming a concrete slab. In some instances, the apparatus may include a base member, a stake attachment member, and a stake. The stake may be configured to be attached to the base member via the stake attachment member. The apparatus may be fastened via the base member to a subgrade or surface by adhesion or using mechanical fasteners. The subgrade or surface may be on the surface to which concrete is poured or alternatively, adjacent to a surface on which concrete is to be poured. In some instances, the apparatus is structured and configured such that, regardless of the position in which the base member is fastened to the surface, the stake may be rotatable up to 360° to permit positioning of the stake to reinforce the forms via fasteners that connect the stake to a form. Additionally, and/or alternatively, the stake may be placed in a fixed position with respect to the base.
In some instances, the stake may be used solely to support and secure the concrete forms by placing the stake(s) adjacent to concrete forms and fastening the stake thereto.
In some instances, the stake may be formed, for example via injection molding, from a strong, durable plastic material. An alternate method for forming the stake may include extrusion methods. Furthermore, in some instances, the stake may include features that assist a user in placing a fastener, such as a nail, through the stake in order to support the form.
Moreover, the apparatus may be used in conjunction with a vapor barrier without compromising the integrity of the barrier. For example, the apparatus may be secured to the vapor barrier via an adhesive means to support the form.
In another embodiment, a base unit may include multiple mounting ports in which a stake may be attached to secure a stake to a concrete form.
Additional details regarding the features of the concrete forming apparatus are described herein below.
In general, when placing a form to hold concrete, stake apparatus 100 may be placed adjacent to a subgrade or surface on which concrete is poured. Specifically, base member 102 is secured to the subgrade or surface, and stake 106 may be adjusted, orientated, or positioned with respect to the form via stake attachment member 104. A fastener (not shown) may then be placed through a channel 108 of stake 106 to provide support and resistance to the form.
Referring to
Stake mounting port 206 may include a hollow receptacle oriented with an opening away from planar base 202. While stake mounting port 206 is depicted as a cylinder in the figures, other shapes having one or more walls may be accommodated, and stake mounting port 206 is not limited to a cylinder. Stake mounting port 206 may be configured to receive stake attachment member 104 (as further discussed herein).
The outer wall(s) of stake mounting port 206 forming the receptacle may be reinforced with one or more gussets or brackets 208 (hereinafter “gusset(s)”) to increase stability and provide resistance to the stake supporting the form. Gusset 208 may be defined as a planar structural support member extending and bracing between an inner surface of flange 210 of base member 102 and the external surface of the wall(s) of stake mounting port 206. Additionally, and/or alternatively, gusset 208 may extend and brace between side 204 and the external wall(s) of stake mounting port 206. When implementing a plurality of gussets 208, gussets 208 may be equally spaced and symmetric about a central axis A of stake mounting port 206. However, gussets 208 may take other forms not shown herein in order to reinforce stake mounting port 206. Moreover, gussets 208 may be of various sizes and thickness relative to one another.
Base member 102 may further include pre-formed fastener holes 212 dispersed around base member 102 surrounding stake mounting port 206. Fastener holes 212 may be of varying sizes or may be uniform in size, may be placed randomly or in a pattern throughout base member 102, and/or may extend partially or completely through base member 102, so as to be open on planar side 202 and on side 204. Fastener holes 212 may accommodate the passage of one or more nails and/or screws, or other fasteners, to secure base member 102 to a surface or subgrade and thereby provide support and resistance applied while concrete is poured or curing.
Additionally, and/or alternatively, base member 102 may be secured to a surface or subgrade, including a surface or subgrade having a vapor barrier thereon, via an adhesive. As depicted in
Adhesive layer 302 may be applied to planar side 304 of base member 102. In some instances, adhesive layer 302 may be pre-applied to base member 102 or may be applied at or near the time of use. A peelable cover or film 310 (hereinafter “cover”) may be applied to one or both surfaces 306, 308 of adhesive layer 302 for quick and easy removal at the time of use. Cover 310 may also prevent the adhesive 302 from being exposed to detrimental environmental debris and moisture prior to use. When in use, surface 306 contacts planar side 304 of base member 102, while surface 308 contacts a subgrade or surface to secure base member 102.
While shown in
As mentioned above, adhesive layer 302 may be attached to a surface where a vapor barrier is placed (see
For example, in an alternative embodiment not shown, a latching/locking system may include vertically extending hooked tabs, similar to those shown in
Furthermore, in another alternative embodiment not shown, a screw system may be used in place of the latching/locking system. The stake mounting port of the base member may have a male/female threaded feature, while the stake attachment member may have a corresponding male/female threaded feature, thereby allowing a threaded connection between the stake attachment member and the base member. As such, both a rotational position and a height position of the stake attachment member may be adjusted.
Tubular portion 502 may be sized to fit coaxially within the wall(s) of stake mounting port 504. As depicted in the cross-sectional views in
After being latched/locked into position, base member 102 may support stake 106 when fastened to a concrete form. With the described latch/lock system in the above embodiments and figures, the lock may merely inhibit extraction of tubular portion 502 in a single direction. For example, stake attachment member 104 may be unable to be removed from base member 102 through pulling in an opposite direction to which stake attachment member 104 was attached to stake mounting port 504. Moreover, tubular portion 502 is free to rotate axially about base member 102 up to 360°.
With respect to the top end (“stake end”) of tubular portion 502 of stake attachment member 104, which is opposite the base end, stake attachment member 104 extends above surface 518 of stake mounting port 504. In addition, tubular portion 502 of stake attachment member 104 also has an opening 520 that permits movement of joint 506 within the cavity of stake attachment member 104. The stake end further includes a slot (discussed in more detail in
As stated above, joint 506 is used to attach stake 106 to base member 102. Joint 506 may attach to stake 106 in a variety of different ways. For example, in some instances, as depicted and described in
Shown in
Pin 608 permits joint 604 to be pivoted about an axis of pin 608. In some instances, joint 604 is connected to the stake end of stake attachment member 104 via pin 608 that passes through a hole in a first end of joint 604. Pin 608 is further engaged with tubular portion 606 adjacent to slot 602 in order to secure joint 604 to tubular portion 606 and hold joint 604 in position with the single point on pin 608. Accordingly, as described and depicted, joint 604 is able to pivot on pin 608 from a vertical position to a horizontal position within slot 602.
In
With respect to the radial depth of channels 802, that is the amount in which the channels extend into stake 106, channels 802 may extend radially into stake 106 to the extent that they do not intersect with each other. For example, in some instances, channels 802 may extend a radial depth less than half the diameter of stake 802 so that the divided section(s) of the stake remain interconnected.
Channels 802 in stake 106 provide a place through which a nail or other fastener may be driven by a user when the stake apparatus is in use. Specifically, a fastener may be driven into a concrete form after passing through one or more channels 802 of stake 106 to secure the stake apparatus to the form. Moreover, one or more pre-formed holes (not shown) may be included in the plastic that extend through a thickness of the stake in a direction perpendicular to the axis of the stake, for convenient use as the position of the stake on the form permits.
Through the incorporation of channels 802 extending along the length of stake 106, the stake 106 may be secured more easily to the form by inserting a fastener anywhere along the length of stake 106. In contrast, the preformed, fixed-location holes in conventional steel stakes only permit a fastener to be driven through in a specific spot.
Further, stake 106 may be formed as a composite of two materials 804, 806. For example, the core (shown by reference number 804) of stake 106 may be formed of a different material than a material used as a shell or cover on the outer surface of the stake (shown by reference number 806). For example, one material of stake 106 may provide rigidity and strength to maintain the shape of stake 106, while the other material may be a softer material used to provide easier passage of a nail therethrough. Accordingly, any combination of materials may be used to achieve desired characteristics.
Where collar 1202 is implemented, stake 1102 may attach to stake attachment member 1104 via a connection member 1208 in contact with a proximal end thereof. In some instances, and as shown, connection member 1208 may be at least partially spherical to permit stake 1102 to move about an axis of base member 1106. The second diameter of collar 1202 is smaller than a largest diameter of the connection member 1208 and the first diameter is larger than the second diameter. Thusly, connection member 1208, which may be integral with stake 1102 or added as a component upon assembly, may be accommodated within the diameter of stake mounting port 1204, while being restrained from removal due to the smaller sized collar 1202. Furthermore, in some instances, the proximal end of stake 1102 may have a small diameter than the distal end and facilitate connection with connection member 1208 by being pressed into a correspondingly sized opening in connection member 1208.
Alternatively, as discussed previously, stake 1102 and connection member 1208 may be a single feature, and the proximal end of stake 1102 having connection member 1208 may be pressed or snapped into collar 1202. For example, stake 1102 and connection member 1208 may be molded together. Regardless of the mode of fabrication, upon attachment, collar 1202 and connection member 1208 may allow stake 1102 to be rotated freely along both an axis of stake 1102 and radially around an axis of stake mounting port 1204 up to 360°.
Stake 1308 may have channels that extend along the length of stake 1308, as previously discussed herein, to allow stake 1308 to be fastened to concrete form 1310. That is, because the channels may traverse the lengthwise direction of stake 1308, fasteners may secure stake 1308 to concrete form 1310. As mentioned previously, compared to conventional steel stakes where predefined holes must be configured or lined up with concrete form 1310, the stake forming apparatus according to an embodiment of the instant application improves fastening concrete form 1310 to stake 1308. Additionally, stake 1308 may have prepositioned holes traversing stake 1308 along with the channels.
Furthermore, base members 1302 may be used in combination with vapor barrier 1314. As previously discussed herein, an adhesive layer may be applied to base member 1302 in order to secure base member 1302 to vapor barrier 1314.
Moreover, while ribs 1410 are shown as extending at a particular angle off an inner surface of top mounting port 1404, ribs 1410 may be implemented at any angle to engage and position the stake. Furthermore, while top mounting port 1404 is shown with ribs 1410, the stake may engage with top mounting port 1404 without the use of ribs 1410. For instance, the stake may be in contact with an inner surface or wall of top mounting port 1404, or alternatively, may be threaded into top mounting port 1404.
Side mounting port 1406 may be positioned or orientated at any location around an axis of top mounting port 1404 and may extend at a fixed angle relative to base member 1402 or top mounting port 1404 to permit the opening of side mounting port 1306 to face any outward direction to allow a stake (not shown) to be inserted therein.
Edge mounting port 1408 may be positioned near an outer perimeter of base member 1402 and extend in a vertical direction above base member 1402. In some instances, edge mounting port 1408 may have an opening that is parallel to a top surface of base member 1402. That is, when a stake (not shown) is inserted into the opening of edge mounting port 1408, the stake may extend perpendicularly to base member 1402. Alternatively, edge mounting port 1408 may be positioned at any location on a top surface on base member 1402.
Both side mounting port 1406 and edge mounting port 1408 may be configured to engage a stake (for instance, stake 106). In some instances, side mounting port 1406 and edge mounting port 1408 may engage a stake through a threaded or compression fit. For instance, edge mounting port 1408 may have a male threaded segment 1412 to engage a female threaded segment of stake 106 (1002 of
Furthermore, base members 1402 may be used in combination with vapor barrier 1504. As previously discussed herein, an adhesive layer may be applied to base member 1402 in order to secure base member 1402 to vapor barrier 1504.
Base member 1602 may include top mounting port 1604 and edge mounting port 1606. Top mounting port 1604 may be in contact with stake attachment member 104 to engage a stake, for instance stake 106 (not shown). Thus, stake attachment member 104 may be permitted to rotate freely about an axis of base member 1602 to position a stake. That is, top mounting port 1604 may be similar to stake mounting port 504 discussed in
Referring to
At one end of tip 1802, is a narrow, pointed end 1806 that provides stake 1800 with a sharp tip to allow stake 1800 to be driven into clay, rock, or other compacted surfaces, while the opposite, wide end 1808 may connect spiked tip 1802 to stake 1800. That is, tip 1802 may be a separate feature and attach to proximal end 1804 of stake 1800. For instance, tip 1802 may attach through a threaded joint or compression fit.
Furthermore, while a profile shape of spiked tip 1802 is shown, such profile is provided as a schematic example of the spiked tip 1802. The specific size, pointiness, and/or shape of spiked tip 1802 may vary according to factors of the intended use.
When tip 1802 is configured as a separate feature, stake 1800 may be implemented in multiple embodiments. For instance, tip 1802 may disengage, or be unscrewed, to permit stake 1800 to be attached to base member 102 via stake attachment member 104, or may be directly engaged with base member 1402 or 1602 through the aforementioned top, side, or edge ports. Alternatively, when tip 1802 is engaged or attached to stake 1800, stake 1800 may be used without a base member to support concrete forms. In both example embodiments, grooves along stake 1800 allow for the placement of fasteners through stake 1800 and into concrete forms.
Although several embodiments have been described in language specific to structural features and/or methodological acts, it is to be understood that the claims are not necessarily limited to the specific features or acts described. Rather, the specific features and acts are disclosed as illustrative forms of implementing the claimed subject matter.
This application claims priority to U.S. patent application Ser. No. 15/339,777 filed on Oct. 31, 2016, the entire contents of which are incorporated herein by reference.
Number | Date | Country | |
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Parent | 15339777 | Oct 2016 | US |
Child | 16171325 | US |