The present invention relates generally to concrete forms and more particularly, to concrete form anchor devices operable to support and retain concrete forms in position during the pouring and formation of a concrete trench.
Forming trenches in concrete construction presents a problem due to the nature of the typical concrete mixes being semi-liquids. Therefore, when concrete is poured, forms tend to gravitate or float upwards if not attached to the ground. Current practices for preventing floating of the form include driving rebar into the ground along one side of the form, attaching wire to the rebar, extending the wire over the form, and attaching the wire to rebar driven on the opposite side of the form. The rebar in this method sometimes releases from the soil which allows the form to float or gravitate upwards. This method of forming concrete trenches is labor intensive and costly.
One embodiment of the present application discloses a concrete form system which is capable of maintaining a concrete form in a preset position during the pouring of concrete to form a trench. Other embodiments include unique apparatus, devices, systems, and methods for maintaining concrete forms in preset positions to form concrete trenches. Further embodiments, forms, objects, features, advantages, aspects, and benefits of the present application shall become apparent from the detailed description and figures included herewith.
The figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. Moreover, in the figures, like reference numerals designate corresponding parts throughout the different views.
For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated device, and such further applications of the principles of the invention is illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates.
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Concrete form 20 includes a plurality of concrete engaging surfaces 34 that are surrounded by concrete 16 once it is poured around concrete form 20 and a plurality of open surfaces 36 that are not contacted by concrete 16. In this form, concrete form 20 is defined by a pair of opposing side form members 40 and a bottom or base form member 50 which cooperate together to define a U-Shaped cross-section to form trench 14. In some forms, the concrete form 20 may have other shapes and may include rounded surfaces. For example, the concrete form 20 may be V-shaped, or may be D-shaped, to set forth just a few non-limiting examples. Accordingly, any shape of trench or other concrete construction may be built using the devices and methods described herein. In one form the opposing side form members 40 and base form member 50 may be separate members coupled together using any suitable technique, such as bolting, nailing, screwing, and the like, to set forth just a few non-limiting examples. Concrete form 20 could include multiple form members that define trenches 14 running in various directions. Additionally, in other forms, concrete form 20 could be a unitary structure or contain multiple components coupled together.
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In at least one form, ground engagement member 110 is configured and arranged as a spiral shaped member or auger operable to retain anchor device 30 in a fixed position by cooperating with ground 12 to prevent anchor device 30 from backing out during operation. Ground engagement member 110 may be a separate device attached to body portion 100, or may be integrally formed as part of body portion 100. Ground engagement member 110 includes a lower member 220 and an upper member 210. One form of the present application contemplates lower member 220 having a ground penetrating portion 200 and an upper member-portion 230 where ground penetrating portion 200 is positioned at an offset angle 240 relative to upper member portion 230. Any range of offset angle 240 is contemplated herein, including 0 degrees to 180 degrees. In one form, ground engagement member 110 has a thickness of about ⅛ inch (⅛″).
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In operation, after preparation of ground 12 where concrete 16 is to be poured, a user (not shown), or other force applicator, inserts at least one anchor device 30 into ground 12 by pressing tip portion 150 into the soil and turning anchor device 30. The user presses anchor device 30 into ground 12 until a portion of ground penetrating portion 200 contacts ground 12. The user then turns anchor device 30, allowing ground engagement member 110 to burrow into ground 12, until ground engagement member 110 is within ground 12 and attachment member 120 is positioned at the desired height above ground 12. This process is repeated until the desired number of anchor devices 30 are in place.
After the desired number of anchor devices 30 are in place, the user may attach concrete form 20 to each anchor device 30 by inserting bolt 70 through each opening 52 and fastener opening 190 which are positioned adjacent to each other. As such, a side surface or face 192 (see
Once concrete form 20 is positioned at the desired height, concrete 16 is poured into the prepared area. Once concrete 16 has hardened to the desired level, bolts 70 are removed and concrete form 20 is removed. Upon removal of concrete form 20, anchor devices 30 remain in place hidden from view in concrete 16 and concrete form 20 may be reused at a later time. A trench 14 having the shape of concrete form 20 is thereby formed in concrete 16.
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In operation, after preparation of ground 12 where concrete 16 is to be poured, a user (not shown), or other force applicator, inserts at least one anchor device 30 into ground 12 by pressing a first end 340 of ground engagement member 310 into ground 12. The user then turns anchor device 30, allowing ground engagement member 310 to burrow into ground 12, until ground engagement member 310 is within ground 12 and attachment member 320 is positioned at the desired height above ground 12. This process is repeated until the desired number of anchor devices 30 are in place.
After the desired number of anchor devices 30 are in place, the user may attach concrete form 20 to each anchor device 30 by inserting screw type fastener 75 through concrete form 20 and securing it to support member 360. As such, a side surface 392 (
Once concrete form 20 is positioned at the desired height, concrete 16 is poured into the prepared area. Once concrete 16 has hardened to the desired level, screw type fastener 75 is removed and concrete form 20 can then be removed from the hardened concrete 16. Upon removal of concrete form 20, anchor devices 30 remain in place hidden from view in concrete 16 and concrete form 20 may be reused at a later time. A trench 14 having the shape of concrete form 20 is thereby formed in concrete 16.
One form of the present invention discloses a system. This form of the system includes a concrete form, an anchor device, and a coupling assembly. The concrete form has at least two side walls. The anchor device has an attachment portion, a ground engaging portion, and a body portion extending between a proximal end and a distal end, wherein the attachment portion is coupled to the body portion near the proximal end and the ground engaging portion is disposed near the distal end and is operable to retain the anchor device in position during use. The coupling assembly is operable to cooperate with the side walls of the concrete form to removably couple the concrete form to the anchor device such that the concrete form is suspended a predetermined distance above a portion of the ground.
In one embodiment of the system, the side walls include at least one fastener receiving opening and a removable fastener of the coupling assembly is inserted through at least one fastener opening to secure the attachment portion of the anchor device to the side walls of the concrete form. In another embodiment of the system, the attachment portion further comprises an L-shaped bracket having a first portion and a second portion and an aperture disposed in the second portion of the L-shaped bracket configured to receive a bolt that has passed through a receiving opening in the concrete form thereby securing the anchor device to the side walls of the concrete form.
Another aspect of the present invention discloses a method including the steps of a) inserting a plurality of anchor devices into a portion of ground; b) coupling a respective side wall of at least one trench shaped concrete form to each of the plurality of anchor devices such that the trench shaped concrete form is suspended at a predetermined height above the portion of ground, the trench shaped concrete form and the portion of ground forming a space in the shape of a cured concrete contour therebetween; c) pouring a concrete mixture such that the concrete mixture contacts at least two sides of the trench shaped concrete form; d) uncoupling the trench shaped concrete form from the plurality of anchor devices after the concrete has hardened; and e) removing the trench shaped concrete form and leaving the anchor devices within the hardened concrete mixture.
In one embodiment of the aforementioned method, coupling the at least one trench shaped concrete form to the plurality of anchor devices includes inserting a bolt through a fastener receiving opening defined in the trench shaped concrete form and a support member opening defined in the plurality of anchor devices and retaining the bolt within the fastener receiving opening and the support member opening. In one embodiment, the bolt is retained within the fastener receiving opening and the support member opening with a nut.
In another embodiment of the aforementioned method, coupling the at least one concrete form to the plurality of anchor devices is performed by inserting a screw type fastener through the concrete form into a support member of the anchor device. In one embodiment the screw type fastener is retained by the support member. In one form, uncoupling the concrete form includes removing the screw type fastener from the support member of the anchor device.
In one embodiment, inserting the plurality of anchor devices into the portion of ground includes pressing a tip portion of the anchor device into the portion of ground, rotating the anchor device to fixedly engage the portion of ground, and positioning the anchor device such that an attachment surface of a support member of the anchor device is positioned to engage a side wall of the concrete form to support the concrete form at the first height above the portion of ground.
Still another aspect of the present invention discloses a concrete form anchor device including a ground engagement member, a body portion, and a support member. In one embodiment, the ground engagement member has a first end and a second end, wherein the first end is configured to penetrate a portion of ground thereby securing the concrete form anchor device in the portion of ground, wherein the ground engagement member is retained in place following insertion into the portion of ground. In one embodiment, the body portion extends from a proximal end to a distal end where the distal end is interconnected to the second end of the ground engagement member. In one embodiment, the support member is disposed toward the proximal end of the body portion and has a portion configured to receive a removable fastener device, wherein the support member is configured to be coupled to a concrete form to support the concrete form a fixed distance off the portion of ground thereby allowing a trench to be formed around the concrete form.
While the invention has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that only the preferred embodiments have been shown and described and that all changes and modifications that come within the spirit of the inventions are desired to be protected. It should be understood that while the use of words such as preferable, preferably, preferred or more preferred utilized in the description above indicate that the feature so described may be more desirable, it nonetheless may not be necessary and embodiments lacking the same may be contemplated as within the scope of the invention, the scope being defined by the claims that follow. In reading the claims, it is intended that when words such as “a,” “an,” “at least one,” or “at least one portion” are used there is no intention to limit the claim to only one item unless specifically stated to the contrary in the claim. When the language “at least a portion” and/or “a portion” is used the item can include a portion and/or the entire item unless specifically stated to the contrary.