U.S. patent application number 13/343685 was filed with the patent office on 2013-07-04 for splice plate.
The applicant listed for this patent is John Santeramo. Invention is credited to John Santeramo.
Application Number | 20130167465 13/343685 |
Document ID | / |
Family ID | 48693718 |
Filed Date | 2013-07-04 |
United States Patent
Application |
20130167465 |
Kind Code |
A1 |
Santeramo; John |
July 4, 2013 |
Splice Plate
Abstract
The present invention relates to a splice plate suitable for use
in joining beams for use in a grid that supports panels and ceiling
fixtures in a suspended ceiling. In particular, the present
invention provides a splice plate suitable for use in joining main
beams together for use in a grid that supports panels and ceiling
fixtures in a suspended ceiling.
Inventors: |
Santeramo; John;
(Bloomfield, NJ) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Santeramo; John |
Bloomfield |
NJ |
US |
|
|
Family ID: |
48693718 |
Appl. No.: |
13/343685 |
Filed: |
January 4, 2012 |
Current U.S.
Class: |
52/506.07 ;
52/506.09 |
Current CPC
Class: |
E04B 9/10 20130101; E04B
9/068 20130101 |
Class at
Publication: |
52/506.07 ;
52/506.09 |
International
Class: |
E04B 9/10 20060101
E04B009/10; E04B 9/06 20060101 E04B009/06 |
Claims
1. A linear splice plate for vertical assembly over two main beams
of a suspended ceiling to bridge the gap between the ends of the
two respective main beams and form a connection between the two
respective main beams, the splice plate having a central channel
that is defined by a top portion and two side portions that extend
downward from the top portion, the central channel lacking
internally directed teeth, and proportioned to be assembled
vertically over the two respective main beams, wherein the two
respective main beams have an inverted T-shape, with a bulb at the
top of the beam, a vertical web extending downward from the bulb,
and horizontal flanges at the bottom of the web, wherein the
distance that the side portions of the splice plate extend downward
is a distance equal to that of a web of the two respective main
beams that the splice plate will be assembled vertically over.
2. (canceled)
3. The splice plate of claim 1, wherein the splice plate is
metal.
4. (canceled)
5. The splice plate of claim 1, wherein the top portion is shaped
to conform to the outer surface of the bulb.
6. The splice plate of claim 1, wherein the side portions are
shaped to conform to the webs of the beams.
7. The splice plate of claim 1, wherein the splice plate is affixed
to the beams by using a fastener selected from the group consisting
of adhesive, screws, rivets, wire, nails and bolts.
8. (canceled)
9. (canceled)
10. (canceled)
11. (canceled)
12. (canceled)
13. (canceled)
14. (canceled)
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a splice plate suitable for
use in joining beams for use in a grid that supports panels and
ceiling fixtures in a suspended ceiling. In particular, the present
invention provides a splice plate suitable for use in joining main
beams together for use in a grid that supports panels and ceiling
fixtures in a suspended ceiling.
BACKGROUND
[0002] Suspended ceilings are common in many buildings and
applications, including, for example, bathrooms, schools, and
office buildings. They typically consist of a grid system formed by
beams, and ceiling tiles that are suspended from overhead
structural supports as by wires. The suspended ceilings are
constructed at a job site, from the individual components,
comprising main beams, cross-beams and wall angles, forming a grid.
Such grid has parallel main beams that are connected by cross
beams. The beams are of fixed length, for example, 12 feet, or 4
feet, or 2 feet. More than one beam may be connected together, in
order to form the suspended ceiling grid of the desired
dimensions.
[0003] There are various ways in which beams are connected.
[0004] For example, U.S. Pat. No. 7,788,872 B2 discloses a line of
seismic main beam connections of the invention between main beams
separates the ceiling into segments that move independently of each
other during a quake, to limit a build-up in ceiling momentum.
[0005] In another example, U.S. Pat. No. 7,673,429 B2 discloses a
ceiling system having a primary grid network which includes a
plurality of grid members that are in generally perpendicular
relation and form points of intersection. The ceiling system
includes one or more joint clips, each of which is attached to the
grid network at a point of intersection. Each joint clip partitions
the primary grid network into smaller networks, which move
independently of one another.
[0006] In another example, U.S. Pat. No. 7,661,236 B2 discloses a
stab-in connector for a cross beam in a grid of a suspended
ceiling, wherein the grid supports panels in rectangular grid
openings; the connector having a top and a bottom angled flange
extending outwardly at its top and at its bottom, respectively, the
improvement comprising the connector with an indent, wherein the
indent is formed v-shaped in the bottom angled flange with a height
above the surface of the bottom angled flange.
[0007] In another example, U.S. Pat. No. 7,614,195 B2 discloses a
ceiling grid for a suspended ceiling intended for use in zones
subject to earthquakes, the improvement comprising a joint clip
that (1) in a connection in the grid between a main beam and a pair
of cross beams, each of which extends from an opposite side of the
main beam, (2) permits, during an earthquake, the main beam and
each of the pair of cross beams to move independently of one
another, without transmitting forces between or among the beams;
(3) is formed of a pair of loosely connected segments movable with
respect to one another longitudinally of the main beam; and (4) has
a) an overhang that extends above, and laterally across, the main
beam and is slidably secured to the main beam by a cut-out in the
overhang that conforms in shape generally to the cross-section of
the bulb in the main beam, with a stop below the cut-out; b) an
underhang on each side of the main beam integral with the overhang,
that forms, with the overhang, a pocket that conforms in shape
generally to the bulb and web in the cross beam, on each side of
the main beam, and that extends laterally of the main beam over
each cross beam, and slidably receives a cross beam, and; c) slots
in each underhang that slidably receive a screw embedded in an end
of the cross beam; whereby, by using a clip at connections along a
selected main beam in the ceiling grid, one area of the ceiling
grid is isolated from forces created in another area of the ceiling
grid, during the earthquake.
[0008] In another example, U.S. Pat. No. 7,293,393 B2 discloses a
perimeter clip that (a) attaches to an angle wall molding having a
face and a ledge, and (b) supports a beam end in a suspended
ceiling, the perimeter clip having (a) a first leg that attaches to
and extends along the wall molding, and (b) a second leg that
supports the beam end and that extends away from the wall molding
face at a right angle to the first leg; the improvement comprising
a slot in the second leg having (1) an inclined segment that
extends upward and away from the first leg, and (2) a horizontal
segment that extends toward the wall molding face from the inclined
segment, wherein the slot receives a screw that extends through the
slot into the web of the beam end being supported in the clip, with
the screw being free to slide in the slot during an earthquake and
support the beam end in the clip.
[0009] In another example, U.S. Pat. No. 6,957,517 B2 discloses a
splice plate for a faceted curved beam formed in the field from a
straight beam.
[0010] In another example, U.S. Pat. No. 6,729,100 B2 discloses a
connector for a main tee of a suspended ceiling grid that has
improved self-aligning and connection force properties.
[0011] In another example, U.S. Pat. No. 6,523,313 B2 discloses an
end-to-end connection for main beams in a ceiling grid for a
suspended ceiling.
[0012] In another example, U.S. Pat. No. 6,305,139 B2 discloses a
clip for attachment to the end of a main beam for a grid in a
suspended ceiling. The beam has an inverted T cross section. The
clip engages an identical clip on the end of another main beam to
form an end to end connection. The clip has a tongue and channel
that engages with a tongue and channel in the other clip of the
connection.
[0013] In another example, U.S. Pat. No. 6,178,712 B2 discloses a
locking connection used to join the cross runners and main runners
of a suspended grid ceiling system. The main runners are provided
with periodic openings through which the cross runner ends are
inserted and thereby locked together. Each cross tee end connector
contains a resilient finger which engages the main runner upon
insertion. Further, each connector has apertures and raised detents
which will mate with those of a like opposing cross tee end
connector when both are inserted through the same main runner
opening. A locked grid intersection can be disengaged by depressing
the resilient finger holding the main runner, rotating the main
runner over the cross runner end connector, and pushing the cross
tee end vertically free.
[0014] In another example, U.S. Pat. No. 6,199,343 B2 discloses a
hook type assembly that interlocks a pair of intersecting
cross-beams and a main beam in a grid for a suspended ceiling. A
gapped ridge in a clip on each cross-beam engages the other gapped
ridge in a vertical movement that is part of a hooking action while
the assembly is formed.
[0015] In another example, U.S. Pat. No. 4,724,650 discloses an
intersection spacer . . . for use in a subceiling structure of a
grid of open-ended runner beams and intersecting open-ended cross
beams.
[0016] In another example, U.S. Pat. No. 4,335,973 B2 discloses a
splicer bar . . . for fastening together two inverted T-shaped
runners. The splicer bar spans the junction between two runners and
the splicer bar is fastened to the vertical web of both runners.
Each runner has spaced apertures in its vertical web and the
splicer bar has snap fasteners that will fit into these apertures
to hold the two runners in parallel alignment and fixedly fastened
together.
[0017] In another example, U.S. Pat. No. 4,314,432 discloses a pair
of beams joinable end to end in aligned relation, each of the beams
having a vertical web and lower flange at right angles thereto.
[0018] In another example, U.S. Pat. No. 4,108,563 A discloses
locking connection for suspension ceiling systems.
[0019] In another example, U.S. Pat. No. 3,871,150 B2 discloses a
main beam for use in a suspended ceiling system having a
non-directional, integral coupling means provided at its ends.
[0020] In another example, U.S. Pat. No. 3,871,150 B2 discloses a
clip structure . . . designed to snap over the flange of an
existing suspended ceiling system suspension member. This clip will
then accept or join with a new suspension member to help in the
establishment of a second suspended ceiling system under the
original suspended ceiling system of a room. To the second
suspended ceiling system there is then mounted new ceiling boards
to provide the ceiling with a new visible ceiling structure.
[0021] In another example, U.S. Pat. No. 3,284,977 B2 discloses an
expansion splice.
[0022] In another example, U.S. Patent Application 20090223146A1
discloses a line of seismic main beam connections of the invention
between main beams separates the ceiling into segments that move
independently of each other during a quake, to limit a build-up in
ceiling momentum. A slotted fishplate in the connection is set to
keep the beam ends stable about a gap before a quake, and slidably
connected about the gap during a quake.
[0023] In another example, U.S. Patent Application 20080060306A1
states "Joint clips of the invention are used in grids for
suspended ceilings, at selected intersections, to create separate
areas of ceiling that move independently of one another during an
earthquake, to prevent a buildup of momentum in the entire
ceiling."
[0024] In another example, U.S. Patent Application 20050166509A1
discloses a stab-in connector that locks with an opposing identical
connector, through a slot in the main beam of a suspended ceiling
grid. The connector has a cantilevered locking latch that is
pivoted in an arc from the base of the connector that delays
contact with the side of the slot as the connector is being stabbed
into the slot.
[0025] In another example, U.S. Patent Application 20020124496A1
discloses an end-to-end connection for main beams in a ceiling grid
for a suspended ceiling. A connector is formed at the end of a beam
by combining a clip, fastened to the beam, with a configuration in
the end of the beam. The connections are engaged to form a
connection. The connection can be disengaged and reengaged.
[0026] In another example, European Patent EP1775398B1 discloses a
connector for ceiling systems.
[0027] In another example, European Patent EP1640523B1 discloses a
stab-in connector with expansion relief.
[0028] In another example, European Patent EP1553239B1 discloses a
locking connector.
[0029] In another example, PCT Application WO2000008269A1 discloses
a beam clip.
[0030] In another example, Canadian Patent Publication CA 1065572 a
splice connection comprising: two generally aligned beam members
each having a web means and a bead means surmounting said web means
providing increased rigidity to said beam member, connecting means
on adjacent ends of said web means splicing said beam members in an
end-to-end relation.
[0031] In another example, the document located at the web address
http://pottersconz.businesscatalyst.com/_literature.sub.--17721/Donn_Broc-
hure discloses various clips and joining components.
[0032] To span a large room the main beams must be provided in
sections which are spliced together end to end to form an abutting
joint. It is difficult to produce a main beam connector that is
consistently easy to assemble in the field and that will result in
a reliable, sturdy and positive interconnection. Furthermore, the
existing methods to splice beams frequently utilize pre-engineered
splicing means that have a "male" and a "female" end, conferring a
directionality to the beams, which must be followed, if the
pre-engineered splicing means are to work. This may be difficult
when adding a new suspended ceiling to an already existing
suspended ceiling.
[0033] The present invention solves these problems by providing a
joint or splice for a main beam in a suspended ceiling system which
has a high degree of security and which insures a snug and precise
fit between the abutting ends of a pair of beam sections. The
splice of the present invention may be used with any beam,
irrespective if the beam has pre-engineered splicing means. The
splice of the present invention does not require pre-engineered
fastening means to join main beams, and may be used on beams in
either direction, or on beams without pre-engineered fastening
means and provides a more secure connection than that produced by a
pre-engineered fastening means. The splice plate of the present
invention may also be used to splice beams of a different
manufacturer together.
SUMMARY
[0034] In one embodiment, the present invention provides a splice
plate enabling two beams for a suspended ceiling to be joined
together, the beams having an inverted T-shape, with a bulb at the
top, a vertical web extending downward from the bulb, and
horizontal flanges at the bottom of the web, comprising: [0035] a.
a top portion and two side portions that extend downward from the
top portion, wherein the top portion and the two side portions
define a central channel; [0036] b. wherein the central channel
permits the two beams to be longitudinally inserted into the
central channel; [0037] c. wherein the bulbs of the two beams are
located in the portion of the central channel that is defined by
the top portion; and [0038] d. wherein the webs of the beams are
located in the portion of the central channel being defined by the
two side portions.
[0039] In one embodiment, the present invention provides a splice
plate enabling two beams for a suspended ceiling to be joined
together, the beams having an inverted T-shape, with a bulb at the
top, a vertical web extending downward from the bulb, and
horizontal flanges at the bottom of the web, comprising: [0040] a.
a plate shaped along its longitudinal axis to form a top portion
and two side portions that extend downward from the top portion,
wherein the top portion and the two side portions define a central
channel; [0041] b. wherein the central channel permits the two
beams to be longitudinally inserted into the central channel;
[0042] c. wherein the bulbs of the two beams are located in the
portion of the central channel that is defined by the top portion;
and [0043] d. wherein the webs of the beams are located in the
portion of the central channel being defined by the two side
portions.
BRIEF DESCRIPTION OF THE DRAWINGS
[0044] The accompanying drawings, which are incorporated herein and
form part of the specification, illustrate various embodiments of
the present invention and, together with the description, further
serve to explain the principles of the invention and to enable a
person of ordinary skill in the art to make and use the invention.
In the drawings, like reference numbers indicate identical or
functionally similar elements. A more complete appreciation of the
invention and many of the attendant advantages thereof will be
readily obtained as the same becomes better understood by reference
to the following detailed description when considered in connection
with the accompanying drawings, wherein:
[0045] FIG. 1 shows one embodiment of the splice plate of the
present invention. Panel a) is front view of one embodiment of the
splice plate of the present invention, showing the top portion 1,
and the side portions 2, defining a central channel 3. The top
portion 1 has an outer width 4 and the side portions are separated
by an outside width 5 that defines a central channel 3 that is
sufficiently wide enough to permit a beam to fit therein. The top
portion 1 has an indentation 6 at the bottom; where the side
portions 2 begin, forming a narrow portion of the central channel
3. Panel b) is a side view of one embodiment of the splice plate of
the present invention, showing the top portion 1, and the side
portions 2, having a length 7. Panel c) is a plan view of one
embodiment of the splice plate of the present invention, showing
the top portion 1, having an outer width 4, and a length 7. Panel
d) is a magnified view of the bottom end of the side portions 2,
showing the portion of the central channel 3 defined by the two
side portions 2 has an inner width 8, and an outer width 5. Panel
e) is a magnified view of the top portion 1 of the splice plate of
the present invention, wherein the portion of the central channel 3
that is defined by the two side portions 2 has an inner width 9,
and an outer width 4.
[0046] FIG. 2 shows an alternate embodiment of the splice plate of
the present invention. Panel a) is front view of one embodiment of
the splice plate of the present invention, showing the top portion
1, and the side portions 2, defining a central channel 3. The top
portion 1 has an outer width 4 and the side portions are separated
by an outside width 5 that defines a central channel 3 that is
sufficiently wide enough to permit a beam to fit therein. The top
portion 1 has an indentation 6 at the bottom; where the side
portions 2 begin, forming a narrow portion of the central channel
3. Panel b) is a side view of one embodiment of the splice plate of
the present invention, showing the top portion 1, and the side
portions 2, having a length 7. Panel c) is a plan view of one
embodiment of the splice plate of the present invention, showing
the top portion 1, having an outer width 4, and a length 7. Panel
d) is a magnified view of the bottom end of the side portions 2,
showing the portion of the central channel 3 defined by the two
side portions 2 has an inner width 8, and an outer width 5. Panel
e) is a magnified view of the top portion 1 of the splice plate of
the present invention, wherein the portion of the central channel 3
that is defined by the two side portions 2 has an inner width 9,
and an outer width 4.
[0047] FIG. 3 is an end view of a beam suitable for used in the
present invention, showing a bulb 10, a web 11, and flanges 12.
[0048] FIG. 4 shows how one embodiment of the splice plate of the
present invention may be utilized to join two beams together. Panel
a) is a front view of one embodiment of a splice plate of the
present invention A, that has two beams B longitudinally inserted
into the central channel. Panel b) is a side view of one embodiment
of a splice plate of the present invention A that has two beams B
longitudinally inserted into the central channel.
[0049] FIG. 5 panel a) shows a side-view photograph of one
embodiment of a splice plate of the present invention. Panel b)
shows a perspective view photograph of one embodiment of a splice
plate of the present invention.
[0050] FIG. 6 panel a) shows a top-view photograph of one
embodiment of a splice plate of the present invention A, that has
two beams B longitudinally inserted into the central channel. Panel
b) shows a side-view photograph of one embodiment of a splice plate
of the present invention A, that has two beams B longitudinally
inserted into the central channel.
DETAILED DESCRIPTION
[0051] For clarity of disclosure, and not by way of limitation, the
detailed description of the invention is divided into the following
subsections that describe or illustrate certain features,
embodiments or applications of the present invention.
DEFINITIONS
[0052] "Beam" as used herein refers to a "T"-shaped beam,
frequently fabricated from metal that is used to form the grid of a
suspended ceiling.
[0053] "Web" as used herein refers to the portion of the beam that
extends down from the bulb to the flanges.
[0054] "Bulb" as used herein refers to top portion of a beam.
[0055] "Flange" as used herein refers to the lateral extension from
the web on either side of the beam, on which the ceiling tiles
rest.
[0056] A typical suspended ceiling consists of a grid-work of metal
beams in the shape of an upside-down "T", suspended on wires from
the overhead structure. These beams snap together in a regularly
spaced pattern--typically a 2.times.2 or 2.times.4 feet, such as,
for example, the grid disclosed in U.S. Pat. No. 6,763,642. The
grid is formed by a series of longitudinal main beams, extending
the length of the ceiling, that are spaced evenly apart, connected
by cross-beams, forming the desired grid pattern. The grid may be
filled with lightweight "tiles" or "panels" which simply drop into
the grid. Tiles can be selected with a variety of materials,
including wood, metal, plastic, or mineral fibers, and can come in
almost any color. Light fixtures, HVAC air grilles, and other
fixtures are available which can fit the same space as a tile for
easy installation.
[0057] Beams that are typically used in suspended ceilings are
generally of an inverted T-shape, with a bulb at the top, a
vertical web extending downward from the bulb, and horizontal
flanges at the bottom of the web. An example of a cross section of
a beam is shown in FIG. 3. The height of a main beam from the top
of the flanges to the top of the bulb is generally about
15/8.sup.th inches. The bulb may be any shape suitable for use in
the art. For example, the bulb may be square-shaped in
cross-section. Alternatively, the bulb may be rounded in
cross-section. Alternatively, the bulb may be arrowhead-shaped in
cross section. The height of a cross-beam from the top of the
flanges to the top of the bulb is generally about 11/2 inches.
Beams may be constructed of any suitable material. However, beams
are typically formed from a flat strip of metal by folding the
strip along its longitudinal center.
[0058] The choice of beam may be easily selected by one of ordinary
skill in the art. For example, the beam may the beam disclosed in
U.S. Pat. No. 6,722,098. Alternatively, the beam may be the beam
disclosed in U.S. Pat. No. 6,138,416.
[0059] To span a large room the main beams must be provided in
sections which are spliced together end to end to form an abutting
joint. Such joined main beams are subjected to tension,
compression, and bending stresses, and occasionally to twisting
forces. The function of the splice plate of the present invention
is to maintain the strength and alignment of the main beams. The
splice plate of the present invention enables two main beams to be
connected together in a way that provides improved strength to the
junction between the main beams. The splice plate of the present
invention may be used with any suspended ceiling beam.
[0060] In one embodiment, the present invention provides a splice
plate that is capable of being rapidly installed, in that the two
beams are rapidly joined together, using the splice plate of the
present invention. In one embodiment, the splice plate of the
present invention does not hinder the installation of ceiling
panels after the splice plate is installed, and the beams
longitudinally inserted therein are joined.
[0061] In one embodiment, the present invention provides a splice
plate enabling two beams for a suspended ceiling to be joined
together, the beams having an inverted T-shape, with a bulb at the
top, a vertical web extending downward from the bulb, and
horizontal flanges at the bottom of the web, comprising: [0062] a.
a top portion and two side portions that extend downward from the
top portion, wherein the top portion and the two side portions
define a central channel; [0063] b. wherein the central channel
permits the two beams to be longitudinally inserted into the
central channel; [0064] c. wherein the bulbs of the two beams are
located in the portion of the central channel that is defined by
the top portion; and [0065] d. wherein the webs of the beams are
located in the portion of the central channel being defined by the
two side portions.
[0066] In one embodiment, the present invention provides a splice
plate enabling two beams for a suspended ceiling to be joined
together, the beams having an inverted T-shape, with a bulb at the
top, a vertical web extending downward from the bulb, and
horizontal flanges at the bottom of the web, comprising: [0067] a.
a plate shaped along its longitudinal axis to form a top portion
and two side portions that extend downward from the top portion,
wherein the top portion and the two side portions define a central
channel; [0068] b. wherein the central channel permits the two
beams to be longitudinally inserted into the central channel;
[0069] c. wherein the bulbs of the two beams are located in the
portion of the central channel that is defined by the top portion;
and [0070] d. wherein the webs of the beams are located in the
portion of the central channel being defined by the two side
portions.
[0071] In one embodiment, the beams are main beams.
[0072] In one embodiment, the top portion of the splice plate
conforms to the shape of the outer surface of a bulb of a beam.
[0073] In one embodiment, the side portions of the splice plate
conform to the shape of the outer surface of a web of a beam.
[0074] In one embodiment, the splice plate of the present invention
fully extends down the web of the beams that are longitudinally
inserted into the central channel.
[0075] FIG. 1 shows one embodiment of the splice plate of the
present invention. Panel a) is front view of one embodiment of the
splice plate of the present invention, showing the top portion 1,
and the side portions 2, defining a central channel 3. The top
portion 1 has an outer width 4 and the side portions are separated
by an outside width 5 that defines a central channel 3 that is
sufficiently wide enough to permit a beam to fit therein. The top
portion 1 has an indentation 6 at the bottom; where the side
portions 2 begin, forming a narrow portion of the central channel
3. Panel b) is a side view of one embodiment of the splice plate of
the present invention, showing the top portion 1, and the side
portions 2, having a length 7. Panel c) is a plan view of one
embodiment of the splice plate of the present invention, showing
the top portion 1, having an outer width 4, and a length 7. Panel
d) is a magnified view of the bottom end of the side portions 2,
showing the portion of the central channel 3 defined by the two
side portions 2 has an inner width 8, and an outer width 5. Panel
e) is a magnified view of the top portion 1 of the splice plate of
the present invention, wherein the portion of the central channel 3
that is defined by the two side portions 2 has an inner width 9,
and an outer width 4.
[0076] In one embodiment, the splice plate of the present invention
can join beams from the same manufacturer together. Alternatively,
the splice plate of the present invention may join beams from
different manufacturers together.
[0077] The splice plate of the present invention may be used with
beams of any cross-sectional profile, such as, for example, rounded
bulbs, square bulbs, and the like. In one embodiment, the splice
plate of the present invention can join beams having the same
cross-sectional profile together. Alternatively, the splice plate
of the present invention may join beams having different
cross-sectional profiles together. In one embodiment, the
cross-sectional profile of the top portion 1 of the splice plate of
the present invention matches the cross sectional profile of the
beams.
[0078] FIG. 4 shows how one embodiment of the splice plate of the
present invention may be utilized to join two beams together. Panel
a) is a front view of one embodiment of a splice plate of the
present invention A, that has two beams B inserted into the central
channel. Panel b) is a side view of one embodiment of a splice
plate of the present invention A that has two beams B inserted into
the central channel. The length 7 of the splice plate of the
present invention provides an overlap of the beams that are
inserted into the central channel 3. The overlap provides the
stability for the join between the beams.
[0079] In one embodiment of the present invention, the splice plate
of the present invention has a top portion 1 and two side portions
2 that define a central channel 3 such that the side portions 2 and
the top portion 1 form a close contact with the bulb and web of the
beams that are longitudinally inserted into the central channel 3,
preventing the beams from sliding out of the splice plate of the
present invention. In one embodiment, the splice plate of the
present invention has indentations 6 where the top portion 1 ends
and the two side portions 2 begin, such that the central channel 3
that is defined by the side portions 2 is narrower than the central
channel 3 that is defined by the top portion 1. In one embodiment,
the side indentations 6 define a central channel 3 such that the
side portions 2 and the top portion 1 form a close contact with the
bulb and web of the beams that are longitudinally inserted into the
central channel 3, preventing the beams from sliding out of the
splice plate of the present invention.
[0080] The splice plate of the present invention may be formed of
any material. In one embodiment, the splice plate of the present
invention is formed from metal. In one embodiment, the splice plate
is formed from the same material as the beams.
[0081] In the embodiments where the splice plate of the present
invention is made from metal, the thickness or gauge of the metal
may be of a sufficient gauge to maintain the strength and alignment
of the main beams that are butted together. In one embodiment, the
splice plate of the present invention is made from metal of a
thickness from about 25-gauge (about 0.0247 inch thick) to about
18-guage (about 0.0516 inch thick). In one embodiment, the splice
plate of the present invention is made from 20-gauge metal (about
0.0396 inch thick). FIGS. 5 and 6 show one embodiment of the splice
plate of the present invention that is made from 20-gauge metal. It
is appreciated that the thickness of a given gauge varies slightly,
depending on the metal. It is also appreciated that the optimal
gauge and metal will be influenced by a particular application and
the overall weight of the suspension, although, there is general
inter-applicability.
[0082] In one embodiment, the splice plate is made such that the
side portions 2 are forced open by the beams that are
longitudinally inserted into the central channel 3. In one
embodiment, the material forming the splice plate biases the side
portions 2 to have an inner width 8 of a lesser dimension that the
width of the webs of the beams that are longitudinally inserted
into the central channel 3. Inserting the beams into the central
channel 3 forms a spring force, keeping the side portions 2 tightly
pushed against the webs of the inserted beams.
[0083] The splice plate of the present invention may be shaped by
any suitable method selected by one of ordinary skill in the art.
For example, the splice plate of the present invention may be
shaped by casting the splice plate using a mold. Alternatively, the
splice plate of the present invention may be shaped using a die
cast shaping method. Alternatively, the splice plate of the present
invention may be shaped by folding a flat material into the desired
shape.
[0084] The central channel 3 defined by the top portion 1 and the
side portions 2 may be of any dimension that permits a beam to be
inserted into the central channel 3. In one embodiment, the width
of the portion of the central channel 3 defined by the top portion
1 is the same as the width of the central channel 3 defined by the
side portions 2. In an alternate embodiment, the width of the
central channel 3 defined by the side portions 2 is less than the
width of the central channel 3 defined by the top portion 1. In the
embodiments where the width of the central channel 3 defined by the
side portions 2 is less than the width of the central channel 3
defined by the top portion 1, the decrease in width of the width of
the central channel 3 defined by the side portions 2 may be
achieved by the use of indentations 6.
[0085] The outer width of the top portion 4 and the outer width of
the side portions 5 may be varied to permit beams of various
dimensions to be inserted. For example, in one embodiment, the
outer width of the top portion 4 may be from about 0.3619 inch to
about 0.6032 inch. Alternatively, the outer width of the top
portion 4 may be from about 0.3917 inch to about 0.5167 inch.
Alternatively, the outer width of the top portion 4 may be about
0.3917 inch. In one embodiment, the outer width of the top portion
4 may be the inner width of the top portion 9 plus twice the
thickness of the material used to form the splice plate of the
present invention.
[0086] In one embodiment, the outer width of the side portions 5
may be from about 0.1119 inch to about 0.6032 inch. Alternatively,
the outer width of the side portions 5 may be from about 0.3917
inch to about 0.5167 inch. Alternatively, the outer width of the
side portions 5 may be about 0.3917 inch. In one embodiment, the
outer width of the side portions 5 may be the inner width of the
side portions 8 plus twice the thickness of the material used to
form the splice plate of the present invention.
[0087] The inner width of the top portion 9 and the inner width of
the side portions 8 may be varied to permit beams of various
dimensions to be inserted. In both cases, the inner width of the
central channel would be the width of the respective outer portion,
less twice the thickness of the material used to form the splice
plate of the present invention. For example, in one embodiment, the
inner width of the top portion 9 may be from about 5/16.sup.th (or
0.3125) inch to about 1/2 (or 0.5) inch. Alternatively, the inner
width of the top portion 9 may be from about 5/16.sup.th (or
0.3125) inch to about 7/16.sup.th (or 0.4375) inch. Alternatively,
the inner width of the top portion 9 may be about 5/16.sup.th (or
0.3125) of an inch.
[0088] Similarly, the inner width of the side portion 8 may be from
about 1/16.sup.th (or 0.0625) inch to about 8/16.sup.th (or 0.5)
inch. Alternatively, the inner width of the side portion 8 may be
from about 1/16.sup.th (or 0.0625) inch to about 3/16.sup.th (or
0.1875) inch. Alternatively, the inner width of the side portion 8
may be about 1/16.sup.th (or 0.0625) inch.
[0089] The central channel 3 may be any shape suitable for
accepting a beam. For example, in one embodiment, such as, for
example, the embodiment shown in FIGS. 1 and 2, the central channel
3 has a top portion 1, with indentations 6 on either side, creating
a narrower portion of the central channel 3 formed by the side
portions 2.
[0090] The top portion 1 may be, for example, arrow-shaped,
U-shaped, and the like. The Top portion may have indentations 6, or
the indentations 6 may be absent.
[0091] In one embodiment, the height of the top portion 1 may be
from about 0.5 inch to about 3/4 inch. Alternatively, the height of
the top portion 1 may be from about 0.5 inch to about 11/16.sup.th
inches. Alternatively, the height of the top portion 1 may be about
11/16.sup.th inch.
[0092] In one embodiment, the length of the side portions 2 may be
from about 7/8.sup.th inch to about 1 1/16.sup.th inches.
Alternatively, the length of the side portions 2 may be from about
3/4 inch to about 1 1/16.sup.th inches. Alternatively, the length
of the side portions 2 may be about one inch. In one embodiment,
the side portions 2 extend down to touch the flanges of the beams
inserted into the central channel 3.
[0093] The length 7 of the splice plate of the present invention
may be of any length sufficient to provide a stable joint between
the beams inserted into the central channel 3. For example, the
length 7 of the splice plate of the present invention may be from
about 3 inches to about 8 inches. Alternatively, the length 7 of
the splice plate of the present invention may be from about 4
inches to about 6 inches. Alternatively, the length 7 of the splice
plate of the present invention may be about 53/4 inches.
[0094] In one embodiment, the stability for the join between the
beams is enhanced by the use of fasteners that are inserted through
the side portions 2 of the splice plate of the present invention
and through the web of the beams B.
[0095] In one embodiment, the stability for the join between the
beams is enhanced by the use of fasteners that are inserted through
the top portion 1 of the splice plate of the present invention and
through the bulb of the beams B.
[0096] The splice plate of the present invention may also contain
holes, or indentations wherein the fasteners may be inserted, thus
affixing the splice plate of the present invention to the beams
inserted into the central channel. In one embodiment, the fasteners
are selected from the group consisting of adhesive, screws, rivets,
wire, nails and bolts. However, any fastener may be used.
[0097] In one embodiment, the splice plate of the present invention
has one or more side arms, allowing cross-beams to be connected to
main beams, forming the grid pattern of a suspended ceiling. In
these embodiments, the one or more side arms are shaped to form top
portion that conforms to the outer surface of the bulb portion of
the cross-beams, and have two side portions extending downward from
the top portion, one on either side of a central channel, which are
shaped to conform to the outer surface of the web portion of the
cross-beams; the top portion and the side portions being folded to
permit the cross-beams to be longitudinally inserted between the
two side portions, with the bulb being in the top portion of the
plate, and the web being in the central channel the two side
portions.
[0098] Publications cited throughout this document are hereby
incorporated by reference in their entirety. Although the various
aspects of the invention have been illustrated above by reference
to examples and preferred embodiments, it will be appreciated that
the scope of the invention is defined not by the foregoing
description but by the following claims properly construed under
principles of patent law.
* * * * *
References