Not Applicable
1. Technical Field
The present invention relates generally to a system and method for the building of walls for commercial, public, residential and other buildings, as well as similar structures.
2. Related Art
The construction of walls for buildings and other structures typically involves methods that provide for the formation of durable and fairly long-lasting structures. Preferred construction methods may also use cost-effective materials and processes that are reasonably easy to implement, thereby reducing the overall construction cost. In one example of a conventional method used to build walls for commercial and residential structures, a combination of cinder blocks, rebar tubes, and a concrete foundation are used to provide the building materials and framework for the wall construction. In a first step, a foundation for the wall is prepared by laying a slab of wet concrete over a selected area of ground. While the concrete is still wet, a number of the rebar tubes are inserted vertically into the foundation slab. The cinder blocks are lifted up over-top of the rebar tubes so the upper ends of the rebar tubes can be threaded through vertical holes formed in the cinder blocks. The cinder blocks are then lowered down along the rebar tubes to rest on, and even slightly within, the concrete foundation. Once a first course of blocks has been formed on the concrete foundation by these steps, second and subsequent courses can be formed by passing additional sets of cinder blocks over the rebar tubes to vertically stack them on top of the first course. Drying of the concrete foundation holds the rebar tubes and first course of cinder blocks in place. To fully stabilize the structure, wet mortar is typically poured into and through the holes in the cinder block courses, thereby sealing the structure upon drying.
However, a problem with such conventional methods is that the insertion of the rebar tubes, and even in some cases the laying of the first course of cinder blocks, typically must be performed before the concrete foundation has dried. If the insertion of the tubes is not completed before the concrete foundation has dried, or if the tubes or cinder blocks are discovered to have been placed incorrectly after the concrete has already dried, then the concrete slab has to be broken up, removed and re-laid in order to properly re-do the rebar tube insertion, which can be a very costly and time-intensive procedure. It can also be difficult to stabilize the re-bar tubes in the wet concrete for a duration sufficient to achieve placement of all of the tubes, increasing the likelihood of having to re-do the insertion step.
Yet another problem with such conventional wall construction methods is the cumbersome height of the rebar tubes typically required to build wall structures. Rebar tubes are selected according to the desired height of the wall structure, with very tall rebar tubes being selected for higher walls. Unfortunately, such high rebar tubes can make it difficult to lift the cinder blocks over the tops of the rebar tubes in order to form the wall. This can especially be true when placing cinder blocks while the concrete foundation is wet, as any “jolting” of the rebar while trying to place the blocks can dislodge the rebar from its proper position in the foundation. Also, lifting the cinder blocks to the tops of the rebar tubes increases the likelihood of breaking the cinder blocks, which are susceptible to fracturing and cracking if dropped with sufficient force.
A method proposed to compensate for these problems is the use of cinder blocks having openings formed in the front sides thereof, which allows positioning of the cinder blocks by sideways insertion of the blocks onto the rebar tube frame. However, these same openings can cause undesirable leaking of the mortar from the wall when attempting to seal the structure with mortar, making it difficult to achieve a fully sealed and stabilized structure.
Accordingly, there remains a need for a system and method for building a wall structure that allows for relatively easy construction thereof. There is also a need for a system and method that do not require the insertion of materials into a wet foundation to achieve a stable structure. There is further a need for a system and method that allows for stable construction without requiring the use of very long and cumbersome rebar tubes. There is also a need for methods that allow for the construction of wall structures substantially without requiring the use of mortar.
The present invention is generally directed to a block building system for building a wall structure. The system includes a plurality of pre-formed blocks configured to be stacked vertically upon one another to form the wall structure. Each block has at least one frustum-shaped protrusion extending vertically upwards from a top surface of the block, a horizontal channel formed in a bottom surface of the block and extending at least partially into an interior of the block, and at least one aperture extending vertically through the interior of the block. The system also contains at least one base track having a C-shaped vertical cross-section, with the base track being sized and configured to engage the horizontal channel formed in the blocks.
The block building system also has a plurality of T-shaped reinforcement members having a horizontal base that is sized and configured to fit within the C-shaped cross-section of the base track, and a vertically extending rod portion that is sized and configured to pass through the at least one aperture formed in each block. The vertically extending rod portion has a plurality of first notches formed along a longitudinal axis thereof. A plurality of rod-shaped extension members are further provided as a part of the block building system, the extension members being sized and configured to pass through the at least one aperture formed in each block. Each extension member has a plurality of second notches that are configured to interlock with the plurality of first notches of each T-shaped reinforcement member. The block building system also has a plurality of securing members operative to secure the extension members to the T-shaped reinforcement members. One or more courses of blocks can be vertically stacked over the base track by passing the T-shaped reinforcement members and/or extension members through the apertures formed in the blocks, thereby forming the wall structure.
In one version, a method of building a wall structure with the block building system involves securing the base track to a foundation, and inserting the plurality of T-shaped reinforcement members into the base track. At least one base course of blocks is stacked over the base track and T-shaped reinforcement members by passing the vertically extending rod portion of the T-shaped reinforcement members through vertical apertures formed in each of the blocks. Extension members are secured to the T-shaped reinforcement members by interlocking the plurality of notches formed on each of the extension members and T-shaped reinforcement members together. At least one secondary course of blocks is stacked over the at least one base course of blocks by passing the extension members through the vertical apertures formed in each of the blocks. Optionally, additional extension members are secured to the extension members previously used by interlocking the plurality of notches formed on each extension member, and at least one additional course of blocks is stacked over the base and secondary courses of blocks by passing the additional extension members through the vertical apertures formed in each of the blocks. One or more of the above steps can also be repeated to form the final wall structure.
The present invention is best understood by reference to the following detailed description when read in conjunction with the accompanying drawings.
These as well as other features of the present invention will become more apparent upon reference to the drawings wherein:
Common reference numerals are used throughout the drawings and detailed description to indicate like elements.
The detailed description set forth below is intended as a description of the presently preferred embodiment of the invention, and is not intended to represent the only form in which the present invention may be constructed or utilized. The description sets forth the functions and sequences of steps for constructing and operating the invention. It is to be understood, however, that the same or equivalent functions and sequences may be accomplished by different embodiments and that they are also intended to be encompassed within the scope of the invention.
A block building system 12 and method for the building of wall structures 10 have been discovered that allow for improved ease of construction over conventional methods, and which can also optionally be employed without the application of extra mortar to seal the wall structure 10. The block building system 12 comprises a plurality of pre-formed blocks 14 that are configured to be stacked vertically upon one another to form the wall structure 10, as shown for example in
The plurality of pre-formed blocks 14 used in the system and method of wall construction are configured to allow for several advantages over conventional cinder blocks. By “preformed” it is meant that the blocks 14 are formed prior to their placement into the wall structure 10, as opposed to being formed in-situ. The blocks 14 can be formed of a variety of materials conventionally used for wall construction, such as cement, cinder block, clay, rock, adobe, brick, plastic, wood, metal, composites, and other suitable materials and combinations thereof.
The blocks 14 each comprise at least one frustum-shaped protrusion 24 that extends vertically upwards from a top surface 26 of the block 14, as shown for example in FIGS. 2A and 2C-2D. The frustum-shaped protrusions 24 formed on the block surfaces 26 can comprise pyramidal frustum shapes (shown), conical frustum shapes (not shown), as well as other suitable shapes and combinations thereof. In the version shown, each block 14 comprises two pyramidal frustum-shaped protrusions 24 symmetrically located towards opposing ends 40a, 40b of each block 14. It should be understood that each block 14 can also alternatively comprise only a single, or alternatively multiple such protrusions in desired arrangements on the block surface 26.
Each block 14 further comprises at least one horizontal channel 28 that is formed in the bottom surface 30 of the block 14, and that extends at least partially into an interior 32 of the block 14. The blocks 14 containing the horizontal channel 28 in combination with the frustum-shaped protrusions 24 are advantageous in that they provide for a substantially self-registering stacking system, by virtue of the fact that the horizontal channels 28 are sized, shaped and configured to accommodate the frustum-shaped protrusions 24 of one or more blocks 14 vertically stacked therebeneath. That is, the frustum-shaped protrusions 24 of the blocks 14 at least partially fit within the horizontal channel 28 when stacked therebeneath, thereby allowing the vertically stacked blocks 14 to be substantially self-aligned on top of one another. The bottom horizontal channel 28 extends from a first end 40a of each block 14 to a longitudinally opposing second end 40b, and thus runs across substantially the entire bottom length of each block 14. The horizontal channel 28 of each block 14 is also sized, shaped and configured to fit over at least a portion of the base track 16 to allow for the formation of a base course of blocks thereon, as is described in more detail below. Furthermore, the horizontal channel 28 can also optionally be configured such that an upper surface 34 of the horizontal channel 28 is offset from the top surface 26 of another block stacked therebeneath, thereby allowing at least one of electrical conductors, plumbing tubes, and other household or industrial connectors to pass through the horizontal channel 28 and within the wall structure 10. In the version shown in
The blocks 14 each also comprise at least one aperture 36 that extends vertically through the interior 32 of the block 14, as shown in
In one version, vertical slots 38 are formed on the opposing ends 40a, 40b of each block 14. Similarly to the apertures 36, the vertical slots 38 extend from the top surface 26 of each block 14 to the horizontal channel 28 formed in the bottom of the block. As can be seen from
The block building system 12 further comprises at least one base track 16 having a C-shaped vertical cross-section 15, as shown for example in
The block building system 12 further comprises a plurality of T-shaped reinforcement members 18 that stabilize and reinforce the wall structure 10, as shown for example in FIGS. 3B and 4A-4E. The T-shaped reinforcement members 18 each comprise a horizontal base 48 that is sized and configured to fit within, and be held by, the C-shaped cross-section 15 of the base track 16. The T-shaped reinforcement members 18 also each comprise a vertically extending rod portion 50 that extends through the upper opening 52 of the base track 16 when the member 18 is inserted therein. The vertically extending rod portion 50 of each T-shaped member 18 is sized and configured to be capable of passing though the one or more apertures 36 formed in each of the blocks 14, and may even be sized and configured to pass through the apertures 36 of a plurality of courses 46a, 46b, 46c of vertically stacked blocks 14. Thus, multiple T-shaped reinforcement members 18 can be inserted into the base track 16 to provide a framework 23 for laying the bottom course 46a and subsequent courses of blocks 14.
The block building system 12 also comprises a plurality of rod-shaped extension members 20 that are capable of extending the reinforcement framework 23 initiated by the T-shaped reinforcement members 18 through further courses of blocks 46b, 46c, as shown in
In the version shown in
Additionally, the notches of the extension members 20 can be configured to interlock with those of other extension members 20. For example, in the version shown in
The block building system 12 further comprises a plurality of securing members 22 operative to secure the extension members 20 to the T-shaped reinforcement members 18 in an interlocking relation, as shown in
In the version shown in
Yet another version is shown in
In yet another version as shown in
As shown in
The block building system 12 of the instant invention thus provides substantial advantages over prior methods of wall construction. For example, the block building system 12 does not require the use of wet concrete during construction thereof, thus allowing wall structures 10 to be built within a desired time frame. The block building system 12 also does not require the use of long and cumbersome rebar tubes, and instead allows for the T-shaped reinforcement members to be extended to a desired height at will, and in-situ, via the one or more extension members 20. The building system 12 also allows for self-registering of courses of blocks 14, thereby reducing the amount of time required to properly align blocks 14 in each course. Household and industrial connectors such as electrical wiring can also be readily installed and concealed within the wall structures 10 by virtue of the horizontal channels 28 formed therein. Additionally, the building system 12 provides for the formation of durable and stable wall structures 10 that can optionally be constructed without the addition of mortar to the apertures 36 of the wall structure 10, and even without the addition of mortar at all, due to the stability of the wall structures 10 formed with the building system 12.
An exemplary embodiment of a method of constructing wall structures 10 with the building system 12 is described with reference to
As shown in
Optionally, one or more additional extension members 20b can be added to the initial extension members 20a, such as by interlocking and securing the plurality of notches 54b of each member 20a, 20b to one another with a securing member 22, as is also shown in
In some versions, a portion of at least one of the blocks 14, such as a lower corner 17 of the block, can be cut away to provide space for the insertion of utility boxes and other devices within the wall structure 10.
The steps described above can optionally be repeated, as needed, to form the final wall structure 10. For example, the addition of extension members 20, securing members 22 and courses of blocks 46 can optionally be repeated until a wall structure 10 having the desired dimensions is achieved. The steps of securing the base track 16, inserting the T-shaped reinforcement members 18 and securing extension members 20 thereto can also be repeated as needed to achieve the desired wall structure 10. A different extension member 20 can be used for each individual course of blocks 14 laid on the base course, or alternatively a plurality of courses can be positioned on single extension members 20. Furthermore, while mortar can optionally be added to seal the wall structure 10, the wall structure 10 constructed with the building system 12 is also sufficiently stable in the absence of mortar application.
Additional modifications and improvements of the present invention may also be apparent to those of ordinary skill in the art. Thus, the particular combination of components and steps described and illustrated herein is intended to represent only certain embodiments of the present invention, and is not intended to serve as limitations of alternative devices and methods within the spirit and scope of the invention. Along these lines, it should be understood that the order of steps for building the wall structure 10 as described can be switched as is suitable, for example the base track 16 could be anchored after portions of the wall structure 10 have been built, extension members 20 can be added to the T-shaped reinforcement members 18 before stacking courses of blocks 14 on the base track 16, etc. Also, the various components of the building system 12 may be made of materials other than those specifically described. Furthermore, the wall structure 10 may be in the form of a traditional wall, having a generally square or rectangular shape, or may optionally be in the form of a non-traditional shape, according to building parameters.
The present application is a divisional patent application of U.S. patent application Ser. No. 12/143,063, filed on Jun. 20, 2008 now U.S. Pat. No. 8,061,095, the entire contents of which are incorporated herein by reference.
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Number | Date | Country | |
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Parent | 12143063 | Jun 2008 | US |
Child | 13051224 | US |