U.S. patent application number 13/034130 was filed with the patent office on 2012-10-04 for rebar support rings.
Invention is credited to Jorge R. Alfonso.
Application Number | 20120247057 13/034130 |
Document ID | / |
Family ID | 44515279 |
Filed Date | 2012-10-04 |
United States Patent
Application |
20120247057 |
Kind Code |
A1 |
Alfonso; Jorge R. |
October 4, 2012 |
REBAR SUPPORT RINGS
Abstract
Structures for supporting and aligning a reinforcing bar
("rebar") during the construction of a column, beam or other
structure in which the rebar is laid out in parallel to an axis.
One such structure includes a support structure having a square
ring, where the corners of the square ring include a rebar
receptacle configured to receive a reinforcing bar. The rebar
receptacle includes an opening through which the reinforcing bar
can be inserted, where the opening is configured to allow the
reinforcing bar to enter the rebar receptacle and further
configured to retain the reinforcing bar after the reinforcing bar
has been seated due to the width of the opening being less than a
diameter of the reinforcing bar.
Inventors: |
Alfonso; Jorge R.; (Austin,
TX) |
Family ID: |
44515279 |
Appl. No.: |
13/034130 |
Filed: |
February 24, 2011 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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61309783 |
Mar 2, 2010 |
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Current U.S.
Class: |
52/677 |
Current CPC
Class: |
E04C 5/205 20130101;
E04C 5/203 20130101 |
Class at
Publication: |
52/677 |
International
Class: |
E04C 5/16 20060101
E04C005/16 |
Claims
1. A structure for supporting and aligning a reinforcing bar
comprising: a support structure, wherein corners of said support
structure comprise: a rebar receptacle configured to receive a
reinforcing bar, wherein said rebar receptacle comprises an opening
through which said reinforcing bar can be inserted, wherein said
opening is configured to allow said reinforcing bar to enter said
rebar receptacle and further configured to retain said reinforcing
bar after said reinforcing bar has been seated due to the width of
said opening being less than a diameter of said reinforcing
bar.
2. The structure as recited in claim 1, wherein said support
structure is configured as a square ring.
3. The structure as recited in claim 2 further comprising: one or
more arms extending across said square ring to provide support to
sides of said square ring.
4. The structure as recited in claim 3 further comprising: one or
more additional rebar receptacles located at one or more ends of
said one or more arms.
5. The structure as recited in claim 4, wherein each of said one or
more additional rebar receptacles comprises curved fingers forming
an opening to receive and retain a second reinforcing bar.
6. The structure as recited in claim 3 further comprising: one or
more feet located at one or more ends of said one or more arms.
7. The structure as recited in claim 6 further comprising: one or
more additional rebar receptacles located along said one or more
arms.
8. A structure for supporting and aligning a reinforcing bar
comprising: a support structure having a circular ring; arms
extending outwardly from said circular ring; and a bar receptacle
disposed at an end of one of said arms, wherein said bar receptacle
comprises fingers that are shaped so that said reinforcing bar can
be pressed into said bar receptacle, wherein said fingers can close
after said reinforcing rebar enters said bar receptacle so that a
width of an opening of said bar receptacle is smaller than a
diameter of said reinforcing bar thereby retaining said reinforcing
bar, wherein said bar receptacle acts as a snap-fit based on a
spring action of said structure to provide feedback to a user when
said user inserts said reinforcing bar.
9. A structure for supporting and aligning a reinforcing bar
comprising: a support structure having a circular ring; arms
extending outwardly from said circular ring; and a bar receptacle
disposed at an end of one of said arms, wherein said bar receptacle
comprises a closed circle configuration configured to retain said
reinforcing bar.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is related to the following commonly owned
co-pending U.S. patent application:
[0002] Provisional Application Ser. No. 61/309,783, "Rebar Support
Rings," filed Mar. 2, 2010, and claims the benefit of its earlier
filing date under 35 U.S.C. .sctn.119(e).
TECHNICAL FIELD
[0003] The present invention relates to reinforcing bars ("rebars")
used in construction, and more particularly to providing a
structure for supporting and aligning a rebar during the
construction of a column, beam or other structure in which the
rebar is laid out parallel to an axis.
BACKGROUND
[0004] Concrete is commonly used as a construction material because
of its relatively low cost. Concrete is very strong in compression,
but weak in tension. To increase the tensile strength of concrete,
steel reinforcement bars ("rebars") are added. For foundations,
road work or other flat constructions, the rebar is often laid out
in a grid pattern beneath the surface of the construction. To hold
the rebar together in a grid, the bars are tied together where they
intersect.
[0005] Various codes specify where the rebar must be placed. For
example, the
[0006] American Concrete Institute (ACI) in Section 318 of their
code specifies that the rebar in a slab-on-grade foundation must be
placed at the midpoint depth of the foundation. Thus, for example,
in a four inch foundation slab, the rebar grid would normally be
placed at a depth of approximately two inches. Consequently, the
grid must be elevated off the ground to the desired position before
concrete is poured. In many cases, concrete laborers use stones,
pieces of broken bricks or materials to elevate the grid. This can
cause the grid to be uneven or sag when the concrete is poured.
[0007] For concrete pillars and beams, the rebar is tied to a set
of wooden frames and placed in a mold. The concrete is then poured
into the mold to form the pillar, beam or other construction.
However, this method suffers many disadvantages. First, it is
difficult to align the rebar in parallel around the frames. Second,
the frames often break or shift when the concrete is poured,
causing the rebar to become misaligned. This reduces the tensile
strength of the construction.
BRIEF SUMMARY
[0008] In one embodiment of the present invention, a structure for
supporting and aligning a reinforcing bar comprises a support
structure, where the corners of the support structure comprise a
rebar receptacle configured to receive a reinforcing bar. The rebar
receptacle comprises an opening through which the reinforcing bar
can be inserted, where the opening is configured to allow the
reinforcing bar to enter the rebar receptacle and further
configured to retain the reinforcing bar after the reinforcing bar
has been seated due to the width of the opening being less than a
diameter of the reinforcing bar.
[0009] In another embodiment of the present invention, a structure
for supporting and aligning a reinforcing bar comprises a support
structure having a circular ring. The structure further comprises
arms extending outwardly from the circular ring. In addition, the
structure comprises a bar receptacle disposed at an end of one of
the arms, where the bar receptacle comprises fingers that are
shaped so that the reinforcing bar can be pressed into the bar
receptacle. The fingers can close after the reinforcing rebar
enters the bar receptacle so that a width of an opening of the bar
receptacle is smaller than a diameter of the reinforcing bar
thereby retaining the reinforcing bar. The bar receptacle acts as a
snap-fit based on a spring action of the structure to provide
feedback to a user when the user inserts the reinforcing bar.
[0010] In another embodiment of the present invention, a structure
for supporting and aligning a reinforcing bar comprises a support
structure having a circular ring. The structure further comprises
arms extending outwardly from the circular ring. In addition, the
structure comprises a bar receptacle disposed at an end of one of
the arms, where the bar receptacle comprises a closed circle
configuration configured to retain the reinforcing bar.
[0011] The foregoing has outlined rather generally the features and
technical advantages of one or more embodiments of the present
invention in order that the detailed description of the present
invention that follows may be better understood. Additional
features and advantages of the present invention will be described
hereinafter which may form the subject of the claims of the present
invention.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0012] A better understanding of the present invention can be
obtained when the following detailed description is considered in
conjunction with the following drawings, in which:
[0013] FIG. 1 illustrates a support structure having a square ring
configured in accordance with an embodiment of the present
invention;
[0014] FIG. 2 illustrates an embodiment of the present invention of
a support structure with outwardly extending arms and feet;
[0015] FIGS. 3A-3B illustrate a structure having a rectangular ring
with bar receptacles at each corner in accordance with an
embodiment of the present invention;
[0016] FIG. 4 illustrates a structure having a rectangular ring
with receptacles at each corner and receptacles spaced between the
corners in accordance with an embodiment of the present
invention;
[0017] FIG. 5 illustrates a structure having a circular ring
configured in accordance with an embodiment of the present
invention;
[0018] FIG. 6 illustrates another embodiment of the present
invention of a structure having a ring;
[0019] FIG. 7 illustrates a structure similar to the structure of
FIG. 6 but includes arms and feet in accordance with an embodiment
of the present invention;
[0020] FIGS. 8A-8B illustrate providing support for a rebar in a
column in accordance with an embodiment of the present
invention.
DETAILED DESCRIPTION
[0021] Embodiments described herein provide a structure for
supporting and aligning a rebar, and, in particular, supporting and
aligning the rebar during the construction of a column, beam or
other structure in which the rebar is laid out parallel to an axis.
Embodiments described herein provide a support structure that
retains the parallel pieces of the bar about an axis in a desired
shape.
[0022] Embodiments described herein can provide a support structure
having a generally square, rectangular, circular or other shaped
ring that has bar receptacles spaced as needed along the ring. The
bar receptacles, according to one embodiment, can comprise
sidewalls that at least partially define a bar retaining portion
and an opening to the bar retaining portion. According to one
embodiment, the wall can be radiused about the bar retaining
portion. The support structure can include cross-arms to provide
support to the ring and arms that extend outward from the ring. Bar
receptacles can be placed as desired on the cross-arms or outwardly
extending arms. Arms of the ring can connect adjacent bar
receptacles. According to one embodiment, the support structure can
be formed of a unitary piece of material.
[0023] The ring can be configured so that each opening to a bar
receptacle will widen as a bar is pushed into the opening and close
as the bar seats in the bar retaining portion. According to one
embodiment, the bar receptacles can be snap-on receptacles that
provide auditory or tactile feedback to a user.
[0024] FIG. 1 is a diagrammatic representation of one embodiment of
a support structure 100 having a square ring 101 in accordance with
an embodiment of the present invention. The corners of the square
101 include rebar receptacles 102 to receive the rebar. Each
receptacle can include an opening 104 through which the rebar can
be inserted. Structure 100 can be formed of a resilient plastic or
other material so that as the rebar is pushed into opening 104,
opening 104 opens to allow the rebar to enter receptacle 102. As
the rebar is inserted in receptacle 102, opening 104 widens due to
the elasticity of structure 100. When the rebar is sufficiently
seated, the resiliency of structure 100 causes opening 104 to close
so that the width of opening 104 is less than the diameter of the
rebar, thereby retaining the rebar in receptacle 102. The
receptacles 102 can act as a snap-fit based on the spring action of
square 101. The snap-on connection can provide audible or tactile
feedback to the user when the user inserts the rebar.
[0025] Support structure 100 can include one or more arms 106
extending across ring 101 to provide support to the sides of square
101. Additionally, structure 100 can include outwardly extending
arms 108. According to one embodiment, arms 108 can be aligned with
arms 106. Additional bar receptacles 110 can be located at the ends
of arms 106. Bar receptacles 110 can include curved fingers 114
forming opening 112. As a bar presses against fingers 114, fingers
114 can spread apart so that the bar can enter the receptacle. Due
to the resiliency of fingers 114, fingers 114 can come back
together when the bar is seated so that opening 112 is less than
the width of the bar.
[0026] While, in the embodiment of FIG. 1, rebar receptacles 102
are shown at the corners of square 101, rebar receptacles 102 can
be located at any point on square 101, arms 106 or arms 108.
Different receptacles can be sized to fit different sizes of rebar,
plumbing or electrical conduit. Additionally, some or all of the
receptacles can be shaped so that the receptacles open outward from
square 101. In one embodiment, structure 100 does not have
outwardly extending arms.
[0027] FIG. 2 is a diagrammatic representation of another
embodiment of the present invention of a support structure 100 that
is similar to the embodiment of FIG. 1. The embodiment of FIG. 2
includes outwardly extending arms 108 and feet 114. Feet 114,
according to one embodiment, can be positioned so that the feet
abut the inner surface of a mold into which the concrete will be
poured. Also, as illustrated in FIG. 2, bar receptacles 116 can be
placed along arms 108. FIG. 2 also illustrates that square 101 can
include bar receptacles 118 at any point along square 101.
[0028] FIGS. 3A and 3B are a diagrammatic representation of another
embodiment of the present invention of a structure 120 having a
rectangular ring 121 with bar receptacles 122 at each corner.
Structure 120 can be formed of a resilient plastic or other
material so that as the rebar is pushed into opening 124, opening
124 opens to allow the rebar to enter receptacle 122. When the
rebar is sufficiently inserted in receptacle 122, the resilience of
structure 120 can cause opening 124 to close so that opening 124 is
less than the diameter of the rebar, thereby retaining the rebar in
receptacle 122. Rectangular ring 121 can also include receptacles
126 to receive the rebar spaced between the corners. FIGS. 3a and
3b include outwardly extending arms 132 and feet 134. Feet 134,
according to one embodiment, can be positioned so that feet 134
abut the inner surface of a mold into which the concrete will be
poured. Bar receptacles can be placed along arms 132. Additional
bar receptacles 135 can be disposed along arms 132.
[0029] FIG. 4 is a diagrammatic representation of another
embodiment of the present invention of a structure 120 having a
rectangular ring 121 with receptacles 122 at each corner and
receptacles 126 spaced between the corners. In the embodiment of
FIG. 4, receptacles 126 include fingers 138 that extend inward
relative to arms 127. Fingers 138 have surfaces 140 that angle or
curve away from each other so that when a bar is pressed against
surfaces 140, fingers 138 will open so that the bar can enter
receptacle 126. Because of the resilience of fingers 138, the
opening to receptacle 126 will close so that the opening is smaller
than the width of the bar, thereby retaining the bar in receptacle
126.
[0030] FIG. 5 is a diagrammatic representation of a structure 150
having a circular ring 151 in accordance with an embodiment of the
present invention. Arms 152 extend outwardly from circular ring
151. Bar receptacles 154 are disposed at the ends of arms 152.
Receptacles 154 can include fingers 158 that are shaped so that the
rebar can be pressed into receptacles 154. Due to the elasticity of
structure 150, fingers 158 will open so that the rebar can enter
receptacle 154. Fingers 158 can then close so that the widths of
openings 160 are smaller than the diameter of the rebar, thereby
retaining the rebar. Receptacles 154 can act as a snap-fit based on
the spring action of structure 150 to provide feedback to the user
when the user inserts the rebar. Receptacles 154 can have a variety
of sizes to accommodate rebar, plumbing, conduit or other elongated
bars. In one embodiment, receptacles 154 have a closed circle
configuration configured to retain the rebar. Any material (e.g.,
rubber) may be used to support the rebar in such a configuration,
where the rebar may be made out of any material (e.g.,
fiberglass).
[0031] Arms 161 of an outer circular ring can join adjacent
receptacles to provide lateral support to each receptacle.
Cross-arms 162 can provide support to ring 151. Bar receptacles can
be disposed on inner ring 151, arms 152, arms 161 or be otherwise
disposed about structure 150 in desired positions.
[0032] FIG. 6 is a diagrammatic representation of yet another
embodiment of the present invention of a structure 180 comprising a
ring 181. Bar receptacles 182 are disposed about ring 181.
Receptacles 182 can include fingers 188 configured to spread apart
as the rebar enters receptacle 182. When the rebar is sufficiently
seated in receptacle 182, fingers 188 can come back together so
that the opening 190 is smaller than the width of the rebar.
Receptacles 182 can act as a snap-fit based on the spring action of
ring 181 and fingers 188 to provide feedback to the user when the
user inserts the rebar. Arms 190 can provide radial support to ring
181. Arms 183 can join adjacent receptacles.
[0033] FIG. 7 is a diagrammatic representation of another
embodiment of the present invention of a structure 200 that is
similar to structure 180, but includes arms 202 and feet 204. Feet
204 can be positioned to abut the inner surface of a mold. Arms 202
can be aligned with cross-arms 206 for greater strength. FIG. 7
also illustrates that rebar receptacles 208 can be positioned on
arms 202.
[0034] According to one embodiment, a column can be constructed as
follows. A shell or mold can be fabricated that provides the shape
of the column. An appropriate sized support structure can be
selected. Rebar and other elongated bars can be snapped into a
series of support structures. The support structures and rebar can
be placed in the mold with the feet of the support structures
contacting the inner side of the mold. Concrete can then be poured
in the mold.
[0035] FIGS. 8A and 8B are diagrammatic representations of one
embodiment of the present invention of providing support for a
rebar in a column. Referring to FIGS. 8A and 8B, a mold 300
provides the shape for a column. Rebar 302 is coupled to a series
of support structures 304 that retain rebar 302. The feet 306 of
the support structures 304 abut the walls of the mold to provide an
appropriate offset between the surface of the column and rebar 302.
According to one embodiment, support structures 304 can comprise
support structures that allow rebar 302 to snap-on the support
structure.
[0036] While embodiments above have been discussed in the context
of a rebar, embodiments of the present application can be used with
graphite tubing, glass tubing, plumbing, conduit, wire mesh, or any
other elongated bar. In the various embodiments, bar receptacles
can be placed at any position as needed or desired and can face
inwardly and/or outwardly along the support structure. The
receptacles of a particular support structure can have a variety of
sizes to accommodate different sizes of bars. Moreover, according
to one embodiment, the center of a support structure can provide a
passage for plumbing, conduit or other elongated bar and can
include a snap-on fitting or other receptacle to retain a bar.
According to one embodiment, the support structures can be formed
of a unitary piece of resilient plastic.
[0037] Embodiments described herein provide advantages over
existing methods because it is easier to couple rebar in a desired
shape. Embodiments described herein provide another advantage by
being more stable when concrete is poured, thereby increasing the
integrity of the final construction. Embodiments described herein
provide yet another advantage by increasing the accuracy of
alignment of the bars.
[0038] As used herein, the terms "comprises," "comprising,"
"includes," "including," "has," "having" or any other variation
thereof, are intended to cover a non-exclusive inclusion. For
example, a process, product, article, or apparatus that comprises a
list of elements is not necessarily limited to only those elements
but may include other elements not expressly listed or inherent to
such process, article, or apparatus. Further, unless expressly
stated to the contrary, "or" refers to an inclusive or and not to
an exclusive or. For example, a condition A or B is satisfied by
any one of the following: A is true (or present) and B is false (or
not present), A is false (or not present) and B is true (or
present), and both A and B are true (or present).
[0039] Additionally, any examples or illustrations given herein are
not to be regarded in any way as restrictions on, limits to, or
express definitions of, any term or terms with which they are
utilized. Instead these examples or illustrations are to be
regarded as being described with respect to one particular
embodiment and as illustrative only. Those of ordinary skill in the
art will appreciate that any term or terms with which these
examples or illustrations are utilized encompass other embodiments
as well as implementations and adaptations thereof which may or may
not be given therewith or elsewhere in the specification and all
such embodiments are intended to be included within the scope of
that term or terms. Language designating such non-limiting examples
and illustrations includes, but is not limited to: "for example,"
"for instance," "e.g.," "in one embodiment," and the like.
[0040] Further modifications and alternative embodiments of various
aspects of the disclosure will be apparent to those skilled in the
art in view of this description. Accordingly, this description is
to be construed as illustrative only and is for the purpose of
teaching those skilled in the art the general manner of carrying
out the disclosure. It is to be understood that the forms of the
disclosure shown and described herein are to be taken as the
presently preferred embodiments. Elements and materials may be
substituted for those illustrated and described herein, parts and
processes may be reversed, and certain features of the disclosure
may be utilized independently, all as would be apparent to one
skilled in the art after having the benefit of this description of
the disclosure. Any dimensions provided are provided by way of
example only and not limitation. Furthermore, embodiments of
support structures can include other geometric or arbitrary shapes.
Changes may be made in the elements described herein without
departing from the spirit and scope of the disclosure.
* * * * *