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| United States Patent Application |
20060156646
|
| Kind Code
|
A1
|
|
Evans; R. Donald
|
July 20, 2006
|
Enhanced alignment-affixing device
Abstract
An alignment-affixing device for affixing a projecting member through a
support structure substantially at a right angle, including at least a
first cylindrical collar, the first collar dimensioned to receive a
projecting member of varying sizes. The alignment-affixing device further
includes a bridging section affixed orthogonally to the first collar, and
a pair of arm flexures affixed orthogonally to obverse ends of the
bridging section and parallel to the first collar, for releasably
securing the alignment-affixing device to the support structure. When a
projecting member is placed through the first collar and when the pair of
arm flexures is engaged with the support structure and the bridging
section is placed against the support structure, the projecting member is
oriented substantially at a right angle with respect to the support
structure.
| Inventors: |
Evans; R. Donald; (Glendale, AZ)
|
| Correspondence Address:
|
MCDERMOTT WILL & EMERY LLP
18191 VON KARMAN AVE.
SUITE 500
IRVINE
CA
92612-7108
US
|
| Assignee: |
Don De Cristo Concrete Accessories, Inc.
|
| Serial No.:
|
037884 |
| Series Code:
|
11
|
| Filed:
|
January 18, 2005 |
| Current U.S. Class: |
52/127.2 |
| Class at Publication: |
052/127.2 |
| International Class: |
E04G 21/12 20060101 E04G021/12 |
Claims
1. An alignment-affixing device for affixing a steel reinforcing bar
through a concrete masonry unit substantially at a right angle,
comprising: at least a first cylindrical collar, said first collar
dimensioned to receive a steel reinforcing bar of varying sizes; a
bridging section affixed orthogonally to said first collar; and a pair of
arm flexures affixed orthogonally to obverse ends of said bridging
section and parallel to said first collar, for releasably securing the
alignment-affixing device to the concrete masonry unit; wherein, when the
steel reinforcing bar is placed through said first collar and when said
pair of arm flexures is engaged with the concrete masonry unit and said
bridging section is placed against the concrete masonry unit, the steel
reinforcing bar is oriented substantially at a right angle with respect
to the concrete masonry unit.
2. The alignment-affixing device according to claim 1, wherein each arm
flexure of said pair of arm flexures further comprise a distal catch, and
wherein each catch temporarily fastens said pair of arm flexures to the
concrete masonry unit and prevents the alignment-affixing device from
inadvertently disengaging the concrete masonry unit.
3. The alignment-affixing device according to claim 1, further comprising
at least a first handle for facilitating removal of the
alignment-affixing device from the concrete masonry unit.
4. The alignment-affixing device according to claim 1, wherein at least a
portion of said first collar has inward extending fins for releasably
securing the steel reinforcing bar to the alignment-affixing device.
5. The alignment-affixing device according to claim 1, wherein said
bridging section is approximately 8'' long.
6. The alignment-affixing device according to claim 1, wherein each arm
flexure of said pair of arm flexures is approximately 8'' long.
7. The alignment-affixing device according to claim 1, wherein said first
cylindrical collar intersects said bridging section at a midpoint of said
bridging section.
8. The alignment-affixing device according to claim 1, further comprising
second and third cylindrical collars substantially adjacent to said first
cylindrical collar, said second and third collars dimensioned to receive
the steel reinforcing bar.
9. The alignment-affixing device according to claim 1, wherein the
alignment-affixing device is comprised of plastic.
10. A method for affixing a steel reinforcing bar through a concrete
masonry unit substantially at a right angle using an alignment-affixing
device, comprising the steps of: mounting the steel reinforcing bar
through a first cylindrical collar of the alignment-affixing device; and
mounting the alignment-affixing device over an opening on the concrete
masonry unit, such that the alignment-affixing device affixes the steel
reinforcing bar substantially at a right angle to the concrete masonry
unit.
11. A method according to claim 10, further comprising the steps of:
securing the steel reinforcing bar to the concrete masonry unit, and
removing the alignment-affixing device from the concrete masonry unit and
the steel reinforcing bar.
12. An alignment-affixing device for affixing a projecting member through
a support structure substantially at a right angle, comprising: at least
a first cylindrical collar, said first collar dimensioned to receive a
projecting member of varying sizes; a bridging section affixed
orthogonally to said first collar; and a pair of arm flexures affixed
orthogonally to obverse ends of said bridging section and parallel to
said first collar, for releasably securing the alignment-affixing device
to the support structure; wherein, when the projecting member is placed
through said first collar and when said pair of arm flexures is engaged
with the support structure and said bridging section is placed against
the support structure, the projecting member is oriented substantially at
a right angle with respect to the support structure.
13. The alignment-affixing device according to claim 12, wherein each arm
flexure of said pair of arm flexures further comprise a distal catch, and
wherein each catch temporarily fastens said pair of arm flexures to the
support structure and prevents the alignment-affixing device from
inadvertently disengaging the support structure.
14. The alignment-affixing device according to claim 12, further
comprising at least a first handle for facilitating removal of the
alignment-affixing device from the support structure.
15. The alignment-affixing device according to claim 12, wherein at least
a portion of said first collar has inward extending fins for releasably
securing the projecting member to the alignment-affixing device.
16. The alignment-affixing device according to claim 12, wherein said
bridging section is approximately 8'' long.
17. The alignment-affixing device according to claim 12, wherein each arm
flexure of said pair of arm flexures is approximately 8'' long.
18. The alignment-affixing device according to claim 12, wherein said
first cylindrical collar intersects said bridging section at a midpoint
of said bridging section.
19. The alignment-affixing device according to claim 12, further
comprising second and third cylindrical collars substantially adjacent to
said first cylindrical collar, said second and third collars dimensioned
to receive a projecting member of varying sizes.
20. The alignment-affixing device according to claim 12, wherein the
alignment-affixing device is comprised of plastic.
21. The alignment-affixing device according to claim 12, wherein the
projecting member is a steel reinforcing bar, and wherein the support
structure is a concrete masonry unit.
22. A method for affixing a projecting member through a support structure
substantially at a right angle using an alignment-affixing device,
comprising the steps of: mounting the projecting member through a first
cylindrical collar of the alignment-affixing device; and mounting the
alignment-affixing device over an opening on the support structure, such
that the alignment-affixing device affixes the projecting member
substantially at a right angle to the support structure.
23. A method according to claim 22, further comprising the steps of:
securing the projecting member to the support structure, and removing the
alignment-affixing device from the support structure and the projecting
member.
Description
FIELD OF THE INVENTION
[0001] The present invention generally relates to precision mechanical
bracing and, more particularly, relates to the alignment and affixation
of a projecting member through a support structure at a fixed angle.
DESCRIPTION OF THE RELATED ART
[0002] In various fields, it is often required to temporarily or
permanently affix a projecting member through a support structure at a
specified angle or orientation. In the field of construction, for
example, there are several situations which require the precise
mechanical bracing of a steel reinforcing bar (or "rebar") and/or an
anchor bolt through concrete masonry.
[0003] FIG. 1 illustrates one such situation, in which a reinforced
masonry wall is constructed using concrete masonry units ("CMUs") and
anchor bolts, using conventional masonry techniques. Specifically,
conventional reinforced masonry wall section 100 is constructed by laying
bottom row 101 of adjacent CMUs, then laying middle row 102 atop bottom
row 101, then stacking top row 104 of adjacent CMUs above middle row 102.
Typical CMU 200, illustrated in detail in FIG. 2, is a hollow brick
measuring 8''.times.8''.times.16'' and is comprised of Portland cement
and suitable aggregates combined with water, although variations in
design, shape, size or consistency are prevalent. Typical CMU 200
includes hollow cells 201 and 202, and two hollow half-cells 204 and 205,
where the half cells form whole cells when placed adjacently with other
similar CMUs (not shown).
[0004] Using convention reinforcement techniques, masonry walls are
reinforced by placing rebar through hollow cells of CMUs in the top row.
The rebar is then fed through hollow cells of CMUs which lie below the
top row, so that the rebar runs vertically from the footing to the tie
beam of the wall section.
[0005] Returning to FIG. 1, conventional reinforced masonry wall 100 is
reinforced by placing rebar 105 through hollow cell 106 of CMU 107 in top
row 104, then feeding rebar 105 through hollow cells in CMUs 109 and 110,
located below CMU 107. Using conventional manual positioning techniques,
rebar is fed through the entire height of the wall and held in a vertical
position by hand, while grout is poured into the hollow cells. Once the
grout has set and the rebar is secured into place, a continuous load path
is created, giving the masonry wall superior tensile strength.
[0006] There are several problems associated with conventional manual
rebar positioning techniques. Initially, rebar is oftentimes not
positioned substantially at a 90 degree angle relative to the CMUs, and
is thus not vertical with relation to the partially-constructed wall.
Rebar 112, for example, materially deviates from an "ideal" 90 degree
angle (denoted by reference 114) by an error angle, .theta.. Each piece
of manually positioned rebar has its own corresponding error angle, which
may differ from the error angle of adjacent pieces. As depicted in FIG.
1, when all of the rebar on a particular wall are secured, each piece of
rebar points in a slightly different direction and has inconsistent
spacing. This problem makes it difficult to stack additional CMU layers
above the highest completed layer without manually correcting the
orientation of each piece of rebar.
[0007] FIG. 3 is a side-view close up of CMU 107 in a masonry wall 100,
shown in a state where rebar 105 and 112 have been secured with grout.
Specifically, CMU 107 includes cells 201 and 106, in which rebar 112 and
105 has been placed and set, respectively, however, rebar 112 and 105
both materially deviate from a substantially vertical orientation. In
order to partially correct for this error angle, rebar 112 has been
manually adjusted by repeatedly hitting rebar 112 with a heavy blunt
object, such as a sledgehammer or a hickey bar.
[0008] Although conventional, manual adjustment techniques marginally
redirect rebar 112 towards ideal path 114, manual adjustment leaves rebar
112 with multiple bends and twists, and still not substantially
perpendicular to CMU 107. Furthermore, manual adjustment often causes
fissures 202 to form within hardened grout, negatively effecting the
structural integrity of conventional masonry wall 100, and decreasing its
overall tensile strength.
[0009] Although the problems related to securing a projecting member
through a support structure have been discussed above with respect to
reinforced concrete masonry, broader applications exist in other
construction specialties, such a poured concrete. Furthermore, improved
alignment-affixing technology would be beneficial in a wide range of
fields such as medicine, for example to precisely affix a projecting
member through a corporeal support structure, such as bone.
[0010] It is therefore considered highly desirable to overcome the
deficiencies of conventional techniques for securing a projecting member
through a support structure at a specified angle, by providing an
alignment-affixing device which can be temporarily or permanently affixed
to the support structure, holding the projecting member in place
substantially at a right angle with respect to the support structure.
SUMMARY OF THE INVENTION
[0011] The present invention relates generally to precision mechanical
bracing and, more particularly, relates to the alignment and affixation
of a projecting member through a support structure at a desired angle.
[0012] According to a first arrangement, the present invention is an
enhance alignment-affixing device for affixing a projecting member, such
as a steel reinforcing bar, through a support structure, such as a
concrete masonry unit, substantially at a right angle. The enhanced
alignment-affixing device includes at least a first cylindrical collar,
the first collar dimensioned to receive a steel reinforcing bar of
varying sizes. The alignment-affixing device further includes a bridging
section affixed orthogonally to the first collar, and a pair of arm
flexures affixed orthogonally to obverse ends of the bridging section and
parallel to the first collar, for releasably securing the
alignment-affixing device to the CMU. When the steel reinforcing bar is
placed through the first collar, and when the pair of arm flexures is
engaged with the CMU and the bridging section is placed against the CMU,
the steel reinforcing bar is oriented substantially at a right angle with
respect to the CMU.
[0013] The alignment-affixing device according to the present invention
has many advantages over conventional manual positioning techniques,
including:
[0014] Increased production for each worker, reducing labor costs.
[0015] Eliminating the lifting of support structures (such as CMUs) over
projecting members (such as rebar), reducing the danger of harmful
contact between a steel reinforcing bar and a workers face.
[0016] Reduced material waste, by facilitating the accurate and secure
placement of rebar the first time, each time.
[0017] Increased tensile strength in construction applications, by
effectuating the precise positioning of rebar through supporting
structures, and allowing reinforcing materials to meet or exceed building
codes and architectural designs.
[0018] Reduced need to individually secure and set steel reinforcing bars
in a piecemeal fashion, allowing a plurality of steel reinforcing bars to
be secured through a CMU at the same time.
[0019] Allowing both vertical and horizontal positioning of steel
reinforcing bars through a CMU, providing natural mechanical bonding with
securing materials such as concrete, with no gaps therebetween, meeting
codified lap requirements.
[0020] Allowing vertical steel reinforcing bars to cross horizontal steel
reinforcing bars in a predictable fashion, with multi-collar designs.
[0021] Allowing the use of custom-sized steel reinforcing bars, without
involving additional costs
[0022] Each arm flexure of the pair of arm flexures further include a
distal catch, where each catch temporarily fastens the pair of arm
flexures to the CMU. As such, each catch prevents the alignment-affixing
device from inadvertently disengaging the CMU.
[0023] The alignment-affixing device also includes at least a first handle
for facilitating removal of the alignment-affixing device from the CMU.
At least a portion of the first collar has inward extending fins for
releasably securing the steel reinforcing bar to the alignment-affixing
device.
[0024] The bridging section and/or each arm flexure of the pair of arm
flexures are approximately 8'' long, and the first cylindrical collar
intersects the bridging section at a midpoint of the bridging section.
[0025] The alignment-affixing device, which is comprised of plastic,
further includes second and third cylindrical collars substantially
adjacent to the first cylindrical collar, the second and third collars
dimensioned to receive a steel reinforcing bar of varying sizes.
[0026] According to a second arrangement, the present invention is a
method for affixing a projecting member, such as a steel reinforcing bar,
through a support structure, such as a concrete masonry unit,
substantially at a right angle using an alignment-affixing device. The
method includes the step of mounting the steel reinforcing bar through a
first cylindrical collar of the alignment-affixing device. The method
also includes the step of mounting the alignment-affixing device over an
opening on the CMU, such that the alignment-affixing device affixes the
steel reinforcing bar substantially at a right angle to the CMU.
[0027] The method further includes the steps of securing the steel
reinforcing bar to the CMU, and removing the alignment-affixing device
from the CMU and the steel reinforcing bar. Using this method, a
continuous load path can be created, giving the masonry wall superior
tensile strength without requiring manual repositioning of the steel
reinforcing bar which negatively affects structural integrity.
Furthermore, additional CMU layers can be stacked above the highest
completed layers, without manually correcting the orientation of each
individual steel reinforcing bar.
[0028] A further understanding of the nature and advantages of the present
invention may be realized by reference to the remaining portions of the
specification and the drawings. It is to be understood that other
embodiments may be utilized and changes may be made without departing
from the scope of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Referring now to the drawings in which like reference numbers
represent corresponding parts throughout:
[0030] FIG. 1 depicts a typical masonry wall, in which rebar has been
inserted and secured through multiple CMUs using conventional affixation
techniques;
[0031] FIG. 2 depicts a conventional CMU;
[0032] FIG. 3 illustrates a side-view close up of a CMU in a conventional
masonry wall, in a state in which rebar has been secured with grout using
known affixation techniques, and subsequently manually redirected;
[0033] FIGS. 4A and 4B depict a top view and a side perspective,
respectively, of an enhanced alignment-affixing device according to the
present invention;
[0034] FIG. 5 illustrates the FIG. 4 enhanced alignment-affixing device,
being used to affix an anchor bolt and rebar into a CMU, at a 90 degree
angle;
[0035] FIG. 6 is a flowchart depicting a method for affixing a steel
reinforcing bar through a CMU substantially at a right angle, according
to an additional embodiment of the present invention; and
[0036] FIG. 7 illustrates the FIG. 4 enhanced alignment-affixing device,
being used to affix a piece of rebar into a poured concrete mold at a 90
degree angle.
DETAILED DESCRIPTION OF THE INVENTION
[0037] FIG. 4A and 4B depict a top view and a side perspective,
respectively, of an enhanced alignment-affixing device according to the
present invention. Briefly, the enhanced alignment-affixing device for
affixing a projecting member, such as a steel reinforcing bar, through a
support structure, such as a CMU, substantially at a right angle. The
alignment-affixing device includes at least a first cylindrical collar,
the first collar dimensioned to receive a steel reinforcing bar of
varying sizes. The alignment-affixing device further includes a bridging
section affixed orthogonally to the first collar, and a pair of arm
flexures affixed orthogonally to obverse ends of the bridging section and
parallel to the first collar, for releasably securing the
alignment-affixing device to the CMU. When a steel reinforcing bar is
placed through the first collar and when the pair of arm flexures is
engaged with the CMU and the bridging section is placed against the CMU,
the steel reinforcing bar is oriented substantially at a right angle with
respect to the CMU.
[0038] In more detail, enhanced alignment-affixing device 400 includes at
least first cylindrical collar 401, first collar 401 dimensioned to
receive a steel reinforcing bar, for example, of varying sizes (not
shown). Alignment-affixing device 400 further includes bridging section
402 affixed orthogonally to first collar 401, and a pair of arm flexures,
including arm flexures 404 and 405, affixed orthogonally to obverse ends
of bridging section 402 and parallel to first collar 401, for releasably
securing alignment-affixing device 400 to a support structure, such as a
CMU (also not shown). When a steel reinforcing bar is placed through
first collar 401 and when the pair of arm flexures (arm flexures 404 and
405) is engaged with the CMU, and when bridging section 402 is placed
against the CMU, the steel reinforcing bar is oriented substantially at a
right angle with respect to the CMU.
[0039] Enhanced alignment-affixing device 400 has several distinct
advantages over conventional steel reinforcing bar affixing and alignment
techniques. For instance, enhanced alignment-affixing device 400
increases production for each worker, reducing labor costs, and
eliminating the need for lifting support structures, such as CMUs, over
projecting members, such as rebar. These advantages reduce the danger of
harmful contact between a steel reinforcing bar and a workers face, and
reduce material waste by facilitating the accurate and secure placement
of steel reinforcing bars the first time, each time. Furthermore,
enhanced alignment-affixing device 400 allows both vertical and
horizontal positioning of steel reinforcing bars through a CMU, providing
natural mechanical bonding with securing materials such as grout, with no
gaps.
[0040] Arm flexure 404 further includes distal catch 406, and arm flexure
405 further includes distal catch 407. Catches 406 and 407 temporarily
fasten arm flexures 404 and 405 to the CMU, respectively. Catches 406 and
407 also prevent alignment-affixing device 400 from inadvertently
disengaging the CMU. In a further arrangement, catch 406 and/or catch 407
are omitted.
[0041] The alignment-affixing device also includes first handle 409 and
second handle 410 for facilitating placement and removal of
alignment-affixing device 400 from the CMU. In an additional arrangement
of the present invention, first handle 409 and/or second handle 410 are
omitted, or additional
handles (not shown) are included. First handle 409
can be any type of handle, such as a grab strap or a finger pull, and can
be mounted on alignment-affixing device in any manner which facilitates
its use.
[0042] At least a portion of first collar 401 has inward extending fins,
including fins 411, 412, 414 and 415, for releasably securing the steel
reinforcing bar to alignment-affixing device 400. When the steel
reinforcing bar is placed through first collar 401, fins 411, 412, 414
and 415 flex around the steel reinforcing bar, allowing the steel
reinforcing bar to pass through first collar 401 while maintaining a snug
fit on all sides of the steel reinforcing bar. Furthermore, fins 411,
412, 414 and 415 removably affix steel reinforcing bar in a direction
parallel to elongated first collar 401. In another arrangement, first
collar 401 does not include fins, and is instead arranged to receive
steel reinforcing bars of varying sizes in another fashion. Each of these
arrangements, however, allows the alignment-affixing device to be used
with custom-sized steel reinforcing bars, without incurring additional
costs
[0043] Bridging 402 section and/or arm flexures 404 and 405 are
approximately 8'' long. Since a standard CMU measures
8''.times.8''.times.16'', an 8'' bridging section or arm flexure allows
alignment-affixing device 400 to be affixed on most CMUs typically used
in the construction or masonry industry. With increased customization in
masonry designs, however, non-standard-sized CMUs and, correspondingly,
non-standard-sized alignment-affixing devices with increased or decreased
bridging section or arm flexure lengths are required.
[0044] First cylindrical collar 414 intersects bridging section 402 at a
midpoint of bridging section 402. In reinforced masonry applications,
rebar is ordinarily placed at the center of a cell of a CMU. By placing
the cylindrical collar at the midpoint of a bridging section, a worker
can easily place the steel reinforcing bar in the preferred location
within the CMU, with little or no measurement or effort. In other
applications, however, since specifications may require customized
placement of a steel reinforcing bar (such as 1/3 or 1/4 of the distance
across a gap in the CMU), the collar may be disposed at other positions
along bridging section 402.
[0045] The alignment-affixing device further includes second cylindrical
collar 416 and third cylindrical collar 417 substantially adjacent to
first cylindrical collar 401. Similar to first adjacent collar 401,
second and third collars 416 and 417 are dimensioned to receive a steel
reinforcing bar of varying sizes. Alternatively, second and third collars
416 and 417 are omitted from alignment-affixing device 400. With
multi-collar designs, however, vertical rebar can be easily oriented to
cross horizontal rebar in a highly predictable fashion.
[0046] Alignment-affixing device 400 is comprised of plastic, although in
alternate arrangements alignment-affixing device 400 is comprised of
other materials, including metals, ceramics, glass, or wood. Material
selection for alignment-affixing 400 device depends on several factors,
including the type of steel reinforcing bar and/or CMU. As one example,
alignment-affixing device 400 can be manufactured out of plastic if it is
to be re-used, or manufactured out of wood if it is intended to be used
once then destroyed.
[0047] FIG. 5 illustrates the FIG. 4 enhanced alignment-affixing device,
being used to affix an anchor bolt and rebar into a CMU at a 90 degree
angle. CMU 501 is a modified CMU known as `a bond block,` and is cut out
from a conventional CMU (such as CMU 201). Bond blocks are normally used
at the top of a wall, and require an anchor bolt to vertically protrude
from a cell at a 90 degree angle, where each anchor bolt is secured by a
horizontal steel reinforcing bar.
[0048] In more detail, enhanced alignment-affixing device 400 has been
placed over a hollow cell (not shown) in CMU 501, as described more fully
below. Alignment-affixing device 400 includes first, second and third
cylindrical collars 401, 416 and 417 dimensioned to receive anchor bolt
502, where anchor bolt 502 is comprised of an L-shaped 1/2'' or 5/8''
steel rod with threads at one end, to secure a top plate (not depicted).
[0049] A portion of first collar 401 has inward extending fins (not shown)
for releasably securing anchor bolt 502 (which may be of variable size)
to alignment-affixing device 400. When anchor bolt 502 is placed through
first collar 401, the fins flex around the anchor bolt 502 while
maintaining a tight fit on all sides of anchor bolt 502. The fins also
removably affix anchor bolt 502 in a direction parallel to elongated
first collar 401.
[0050] Alignment-affixing device 400 further includes bridging section 402
affixed orthogonally to first collar 401, and arm flexures 404 and 405
affixed orthogonally to obverse ends of bridging section 402 and parallel
to first collar 401, for releasably securing alignment-affixing device
400 to CMU 501. In FIG. 5, CMU 501 is a bond block made from a
standard-sized, 8''.times.8''.times.16'' CMU. According to this design,
alignment-affixing device 400 increases tensile strength by effectuating
the precise positioning of anchor bolt 502, such that the bent portion of
anchor bolt 502 is secured by steel reinforcing bar 505 at a 90 degree
angle. As such, a top place can be secured substantially orthogonally to
anchor bolt 502, allowing reinforcing materials to meet or exceed
building codes and architectural designs.
[0051] Anchor bolt 502 has been placed through first collar 401, and arm
flexures 404 and 405 have been slidably engaged with CMU 501. In this
state, anchor bolt 502 is oriented substantially at a right angle with
respect to CMU 501.
[0052] FIG. 5 also depicts the CMU in a state after an alignment-affixing
device (not shown) has been removed from CMU 501. Specifically, anchor
bolt 503 has been secured to cell 504 in CMU 501 with an
alignment-affixing device in place, using grout poured into hollow cell
504. After the grout has set, the alignment-affixing device is removed
from CMU 501 using finger pulls or
handles similar to first handle 409
and second handle 410.
[0053] After the removal of the alignment-affixing device, anchor bolt 503
is affixed through CMU 501 substantially at a right angle. Furthermore,
if anchor bolt 503 was placed in a collar at the midpoint of the bridging
section of the removed alignment-affixing device, anchor bolt 503 would
be centered within cell 504.
[0054] FIG. 6 is a flowchart depicting a method for affixing a steel a
projecting member, such as a steel reinforcing bar, through a support
structure, such as a CMU, substantially at a right angle, according to a
second embodiment of the present invention. Briefly, the method involves
the steps of mounting the steel reinforcing bar through a first
cylindrical collar of the alignment-affixing device, and mounting the
alignment-affixing device over an opening on the CMU, such that the
alignment-affixing device affixes the steel reinforcing bar substantially
at a right angle to the CMU.
[0055] In more detail, the process begins (step S601), and a steel
reinforcing bar is mounted though a first cylindrical collar of the
alignment-affixing device (step S602). The mounting step would ordinarily
be performed by sliding the steel reinforcing bar through a cylindrical
collar, where the cylindrical collar is dimensioned to receive a steel
reinforcing bar of varying sizes.
[0056] The alignment-affixing device is then mounted over an opening on
the CMU, such that the alignment-affixing device affixes the steel
reinforcing bar substantially at a right angle to the CMU (step S604).
When the alignment-affixing device is engaged to the CMU, the steel
reinforcing bar is oriented substantially at a right angle with respect
to the CMU.
[0057] In an additional arrangement, steps S602 and S604 can be reversed,
and the alignment-affixing device can be mounted on the CMU before the
steel reinforcing bar is mounted through the first cylindrical collar of
the alignment-affixing device.
[0058] After the alignment-affixing device has been mounted to the CMU,
the steel reinforcing bar is secured to the CMU (step S605). In the
reinforced masonry example described in detail above, the steel
reinforcing bar is secured to the CMU by pouring concrete or other grout
material into the hollow cell in which the steel reinforcing bar has been
fed, and then waiting for the grout material to harden or set.
[0059] Once the steel reinforcing bar has been secured to the CMU, the
alignment-affixing device is removed from both the CMU and the steel
reinforcing bar (step S606), and the process ends (step S608). The
alignment-affixing device can be removed in many ways, such as
destructively cutting the device from the CMU and steel reinforcing bar,
or by using the integrated
handles or finger pulls to remove the device
from the mechanical load of the CMU and steel reinforcing bar.
[0060] Using the above-described method, a continuous load path can be
created, giving the masonry wall superior tensile strength, without
requiring manual repositioning of the steel reinforcing bar which
negatively affects structural integrity. Furthermore, additional CMU
layers can be stacked above the highest completed layers, without
manually correcting the orientation of each individual steel reinforcing
bar.
[0061] FIG. 7 illustrates the FIG. 4 enhanced alignment-affixing device,
being used to affix a piece of rebar into a poured concrete mold,
substantially at a 90-degree angle. As discussed in more detail above,
alignment-affixing device 400 includes first cylindrical collar 401,
second cylindrical collar 416, and third cylindrical collar 417, where
collars 401, 416 and 417 are dimensioned to receive variable size steel
reinforcing bar 701. Alignment-affixing device 400 further includes
bridging section 402 affixed orthogonally to first collar 401, and arm
flexures 404 and 405 affixed orthogonally to obverse ends of bridging
section 402, and parallel to first collar 401.
[0062] In FIG. 7, the support structure is not a single CMU, rather it is
a two-piece support structure (composed of wood pieces 702 and 704). Wood
pieces 702 and 704 together form a mold into which concrete can be
poured, to construct a solid concrete wall. In this regard, arm flexures
404 and 405 are used to releasably secure alignment-affixing device 400
to the two-piece support structure, composed of wood pieces 702 and 704.
When steel reinforcing bar 701 is placed through collar 416 and arm
flexures 404 and 404 engage the two-piece support structure, steel
reinforcing bar 701 is oriented substantially at a right angle with
respect to the two-piece support structure.
[0063] Once alignment-affixing device 400 is placed over the two-piece
support structure, steel reinforcing bar 701 can be secured by pouring
concrete into the gap between wood pieces 702 and 704. Once the concrete
has set, alignment-affixing device 400 can be removed from both the
support structure and steel reinforcing bar 701. By predictably affixing
the aligned steel reinforcing bars, the present invention eliminates the
need to individually secure and set steel reinforcing bars in a piecemeal
fashion, allowing a plurality of steel reinforcing bars to be secured
through a support structure at the same time.
[0064] Finally, wood pieces 702 and 704 can be removed, leaving a concrete
wall with a steel reinforcing bar orthogonal to the top surface 705 of
the poured concrete wall. Both vertical and horizontal positioning of
steel reinforcing bars through support structures of this type can be
accomplished, providing natural mechanical bonding with securing
materials.
[0065] Although the present invention has been described above using
examples relating to reinforced concrete masonry and poured concrete
construction techniques, broader applications exist in other construction
specialties. In particular, the present invention has been demonstrated
using a CMU as the support structure, and using a steel reinforcing bar
as the projecting member. In any instance where a CMU or a steel
reinforcing bar are discussed, it should be understood that other types
of support structures or projecting members are contemplated. In one
example, improved alignment-affixing technology can be used in the field
of medicine, to precisely affix a projecting member or structure through
a corporeal support structure, such as a broken bone.
[0066] The invention has been described with particular illustrative
embodiments. It is to be understood that the invention is not limited to
the above-described embodiments and that various changes and
modifications may be made by those of ordinary skill in the art without
departing from the spirit and scope of the invention.
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