NZ627591B - Folded beam clamp - Google Patents
Folded beam clampInfo
- Publication number
- NZ627591B NZ627591B NZ627591A NZ62759114A NZ627591B NZ 627591 B NZ627591 B NZ 627591B NZ 627591 A NZ627591 A NZ 627591A NZ 62759114 A NZ62759114 A NZ 62759114A NZ 627591 B NZ627591 B NZ 627591B
- Authority
- NZ
- New Zealand
- Prior art keywords
- clamp
- tapped
- plate
- clevis
- swivel
- Prior art date
Links
- 230000000712 assembly Effects 0.000 claims abstract description 12
- 238000000429 assembly Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008901 benefit Effects 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
- F16B2/065—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using screw-thread elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/24—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with a special member for attachment to profiled girders
- F16L3/245—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with a special member for attachment to profiled girders the special member embracing the entire profiled girder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Abstract
clamp (1) for overhead assemblies, such as beams or girders, is disclosed. The clamp has a clamp portion which includes a frame (2) with first and second spaced apart side portions (4, 6) connected at respective ends to a top portion (8). The first and second side portions (4, 6) have first and second openings (26, 28) therethrough to form a clamp opening (30). A plate (10) is disposed through third and fourth openings (12, 14) in the first and second spaced apart side portions (4, 6), respectively. The plate includes a tapped recess (16) for receiving a threaded rod (103). A screw (18) is disposed in a tapped recess in the top portion. An engagement end of the screw is selectively extendible into the clamp opening (30) to engage a structural member inserted within the clamp opening. In an alternative embodiment, a swivel assembly (see 101, figure 4), having an additional plate (see 111, figures 4 & 5) for engaging a threaded rod, is provided to pivotally engage the clamp portion (2). A method of stocking clamps is also disclosed. cond openings (26, 28) therethrough to form a clamp opening (30). A plate (10) is disposed through third and fourth openings (12, 14) in the first and second spaced apart side portions (4, 6), respectively. The plate includes a tapped recess (16) for receiving a threaded rod (103). A screw (18) is disposed in a tapped recess in the top portion. An engagement end of the screw is selectively extendible into the clamp opening (30) to engage a structural member inserted within the clamp opening. In an alternative embodiment, a swivel assembly (see 101, figure 4), having an additional plate (see 111, figures 4 & 5) for engaging a threaded rod, is provided to pivotally engage the clamp portion (2). A method of stocking clamps is also disclosed.
Description
FOLDED BEAM CLAMP
Background ofthe Invention
Field of the Disclosure
Embodiments of the ion generally relate to the field of mounting
clamps, and more particularly to the field of clamps for use in rod hangers employed to
secure loads to overhead structures.
Discussion of Related Art
It is desirable in many applications to clamp mounting assemblies to
beams or girders in a buildings to provide resilient support structures for pipework and
g. Often, clamps are secured to a beam or girder using a screw element that engages
a portion of the beam or girder, along with a mounting rod extending downward from the
clamp upon which a mounting can be secured to support the rk or cabling.
Traditionally, clamps to be secured to girders or beams e cast
elements which are drilled and tapped to ably engage the drop rod, and a clamp
mechanism for securing the clamp to the beam or girder. Such assemblies, however, are
ive to form and manufacture. In addition, these prior clamps are designed for use
with specific size rods. This condition requires the manufacturer to build and stock multiple
sizes of clamps. r problem is that traditional clamps of this type are eccentrically
loaded, such that the rod axis is offset with respect to the clamp axis as well as the point at
which the clamp engages the overhead beam or girder. Such load eccentricity reduces the
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overall ng capacity of prior clamps. ric loading can also cause the clamp to rotate
and slip offthe flange of the beam to which it is attached.
In view of this, there is a need for an improved clamp design that mes
the above-noted deficiencies in prior designs.
Summary of the Disclosure
A clamp for overhead assemblies is disclosed. The clamp can include a
clamp portion comprising a frame having first and second spaced apart side portions
connected at respective ends to a top portion. The first and second side portions may
include first and second openings therethrough to form a clamp opening. A plate can be
disposed through third and fourth openings in the first and second spaced apart side
portions, respectively. The plate can include a tapped recess for receiving a threaded rod.
A screw can disposed in a tapped recess in the top portion. An engagement end of the
screw may be selectively extendible into the clamp opening to engage a ural member
ed within the clamp opening to couple the ural member to the threaded rod.
A clamp for overhead assemblies is disclosed. The clamp can include a
clamp portion comprising a frame having first and second spaced apart side portions
connected at respective ends to a top portion. The first and second side portions may
include first and second openings therethrough to form a clamp opening. A screw may be
disposed in a tapped recess in the top portion. An engagement end of the screw may be
selectively extendible into the clamp opening to engage a ural member inserted within
the clamp opening to couple the structural member to the threaded rod. The clamp may
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include a swivel assembly having a clevis portion having first and second spaced apart
clevis plate portions joined at tive ends by a bottom clevis plate portion. The bottom
clevis plate portion can have a tapped recess for receiving a threaded rod. The first and
second spaced apart clevis plate portions may have corresponding first and second clevis
plate openings positioned to align with third and fourth openings in the first and second
side portions, and to receive a fastener therethrough to rotatably engage the clamp portion
to the swivel assembly.
A method of providing a clamp for overhead assemblies is disclosed. The
method may include: ng a first quantity of clamp portions, each of the clamp portions
comprising: a frame having first and second spaced apart side portions connected at
tive ends to a top portion, the first and second side portion sing first and
second openings therethrough to form a clamp opening for ing a structural member
therein, the first and second spaced apart side portions further comprising third and fourth
openings; and a screw disposed in a tapped recess in the top portion, an engagement end of
the screw being selectively extendible into the clamp opening to engage the ural
member to couple the structural member to the threaded rod; and stocking a second
quantity of tapped plates, each of the tapped plates red to engage the frame via the
third and fourth openings in the first and second spaced apart members, each of the tapped
plates having a tapped recess sized to receive a threaded rod of a predetermined size,
wherein the second quantity is greater than the first quantity, and wherein at least first and
second tapped plates of the second quantity of tapped plates tapped recesses of different
sizes; selecting one tapped plate from the second quantity of tapped plates, wherein the
selected tapped plate has a tapped recess red to receive a predetermined size
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threaded rod; and engaging the ed one tapped plate with the third and fourth openings
of the clamp n to form a clamp configured to engage the preselected threaded rod.
Brief Description of the Drawings
The accompanying drawings illustrate preferred embodiments of the
disclosed device so far devised for the practical application of the principles thereof, and
in which:
is an end View of an exemplary embodiment of the disclosed clamp;
is a side View of the clamp of
is a top View of the clamp of
is an end View of another exemplary embodiment of the disclosed
clamp;
is a side View of the clamp of
is a side View of the clamp of swiveled in a first position;
is a side View of the clamp ofswiveled in a second position;
is a side View of a further exemplary embodiment of the sed
clamp;
is an end View of the clamp of
is an end View of the clamp of swiveled in a first position;
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is an end View of the clamp of swiveled in a second
position.
Description of Embodiments
An improved clamp design is disclosed which overcomes the various
ncies in prior designs. Specifically, the disclosed clamp design provides an improved
degree of commonality so that numerous difi‘erent sizes of clamps need no longer be held in
stock. In addition, the sed design includes a tapped recess precisely in line with the
clamping screw used to engage the beam clamp from above, thus eliminating load
eccentricity.
Referring to FIGS. 1-3, clamp 1 includes a frame 2 having first and
second spaced apart side portions 4, 6 connected at respective ends by a top portion 8 to
form a U-shape. A tapped plate 10 is disposed within first and second openings 12, 14 in
the first and second spaced apart side portions 4, 6, respectively. The tapped plate 10
includes a tapped recess 16 for receiving a suitably sized threaded rod (not shown) therein.
A clamping screw 18 is disposed in a tapped recess 20 in the top portion 8 of the frame 2.
A nut 22 is oned within the frame 2 adjacent the tapped recess 20 and receives a
threaded portion 24 of the clamping screw 18.
As shown in the first and second spaced apart side portions 4, 6,
of the frame 2 comprise respective s 26, 28 that form a clamp opening 30 for
ing the flange of a t beam or support member to which the clamp I attach in
use. The clamping screw 18 has an actuation end 32 disposed outside the frame 2 and a
clamping end 34 disposed inside the frame such that the clamping end 34 is selectively
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extendible into the clamp opening 30. The clamping end 34 of the clamping screw 18
comprises a point configured to engage the flange of a support beam or support member.
The actuation end 32 of the clamping screw 18 includes a square, hex or other geometric
shape suitable for ng by hand, or by a hand tool. In use, the clamping screw 18 may
be rotated so that the clamping end 34 is sufficiently recessed with respect to the clamp
opening 30 to enable the clamp l to be fit onto the flange of a support beam or support
member. When ly positioned, the clamping screw 18 can be rotated in the opposite
direction so that the clamping end 34 extends into the clamp g sufficiently to engage
the flange of the support beam or support member. A hand tool can be used to engage with
the actuation end 32 to apply a desired torque to the clamping screw 18 to fix the screw and
clamp 2 to the support beam or support member.
As noted, the first and second spaced apart side portions 4, 6 of the frame
2 include first and second openings 12, 14 for ing the tapped plate 10. As can be
seen in the tapped plate 10 has first and second ends 36, 38 which, when the tapped
plate is engaged with the first and second openings 12, 14, extend beyond the outside
surfaces 40, 42 of the first and second spaced apart side portions 4, 6 0f the frame 2. In the
illustrated embodiment, this configuration enables the tapped plate 10 to be crimped to the
first and second spaced apart side portions 4, 6 adjacent the respective outside es 40,
42 and inside surfaces 44, 46 of the first and second side portions. As will be appreciated,
crimping the tapped plate 10 in sixteen ons (eight or to the frame 2 and eight
exterior to the frame), closes the frame 2 into a rectangular, tubular profile that exhibits
high strength and rigidity when compared to open s exemplified by the prior art.
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As can be seen in FIGS. 1-3, the clamp 1 aligns the axis A-A of the
clamping screw 18 with the tapped recess 16 in the tapped plate 10 so that the clamping
axis and the threaded rod axis (which will be received in the tapped recess 16) are coaxial.
Thus, loads applied to the clamp 1 by the threaded rod will be directly applied along the
axis A-A to the engagement point between the clamping screw 18 and the flange of the
support beam or support member. As usly described, this coaxial alignment
eliminates loading eccentricity, thereby improving clamp strength and performance.
Also shown in FIGS. 1 and 2, the clamp 1 can include third and fourth
openings 48, 50 for receiving one or more fasteners to couple the clamp 1 to a swivel
assembly, as will be described in greater detail later.
In practice, the frame 2, clamping screw 18 and nut 22 can be
manufactured and stocked in relatively large quantity, as they can be used with any of a
variety of different threaded rod sizes. The tapped plate 10, however, may be
manufactured and stocked in a y of different configurations. Specifically, quantities
of tapped plates 10 having different tapped recess 16 sizes corresponding to ent
threaded rod sizes may be manufactured and stocked separately from the frame 2, clamping
screw 18 and nut 22. When an order is placed for a quantity of clamps suitable for a
particular size rod, tapped plates 10 having tapped recesses 16 ng the particular rod
size can be fit and crimped to respective frames 2 to produce clamps I configured to fit the
particular rod. As will be appreciated, this is an advantage e fewer frames 2, screws
18 and nuts 22 need to be fabricated and d to meet ng demand for clamps 1.
In some embodiments, a part number for each finished clamp l is located on the tapped
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plate 10. Not until final assembly is made, when the tapped plate is crimped to the frame 2,
that the ted assembly becomes a unique part number.
Referring now to FIGS. 4 and 5, an embodiment of the disclosed clamp
100 is shown which orates a swivel assembly 101 to enable the clamp to engage a
threaded rod 103 at a variety of . Thus, clamp 100 may be advantageous in the event
the flange of the support beam or support member is not parallel to the floor, or where the
load supported by the threaded rod is not induced normal to the flange.
The clamp 100 of this embodiment can include some or all of the features
of the clamp l of FIGS. 1-3, with the exception that clamp 100 may not include a tapped
plate positioned between the first and second plate ns of the frame for engaging a
threaded rod. Instead, clamp 100 includes swivel assembly 101 which rotatably engages
the frame 102 via third and fourth openings 148, 150 in the first and second plate portions
104, 106 of the frame. The swivel assembly 101 may comprise a clevis portion 105 having
first and second spaced—apart clevis plate portions 107, 109 joined together at respective
ends by a bottom clevis plate portion 111 to form a general U-shape. The first and second
clevis plate portions 107, 109 may be spaced apart by a distance ent that respective
inside surfaces 113, 115 of the first and second clevis plate ns can receive the first
and second plate portions 104, 106 of the frame 102 therebetween. The first and second
clevis plate portions 107, 109 may include first and second clevis plate openings 117, 119
configured to align with the third and fourth openings 148, 150 of the first and second plate
portions 104, 106. A fastener 121 which in the illustrated embodiment is a cap screw, may
be received through the first and second clevis plate gs 117, 119 and the third and
fourth openings 148, 150 of the first and second plate portions 104, 106 to couple the frame
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102 to the clevis portion 105 of the swivel assembly 101. A nut 123 may engage the
er 121 to selectively fix the positions of the clevis portion 105 and the frame 102.
The bottom clevis plate portion 111 may include a tapped recess 125 sized
to receive the ed rod 103 therein. A nut 127 may be positioned within the clevis
portion 105 adjacent the tapped recess 125 to receive a threaded portion 129 of the threaded
rod 103 to fix the ed rod axially in one direction with respect to the clamp 100.
Thus arranged, the clamp 100 aligns the axis A-A of the clamping
screw 118 with the tapped recess 125 in the bottom clevis plate portion 111 so that the
clamping axis and the axis of the threaded rod 103 are coaxial. As such, loads applied to
the clamp 100 by the threaded rod 103 will be directly applied along the axis A-A to the
engagement point between the clamping screw 118 and the flange of the support beam or
support member. As with the previous embodiment, this coaxial alignment eliminates
g eccentricity, thereby improving clamp strength and mance.
As can be seen in the swivel assembly 101 has a swivel axis B-B
defined by the longitudinal axis of the fastener 121. In the position shown in FIGS. 4 and 5,
the swivel axis B-B is orthogonal to axis A-A. To accommodate instances in which the
flange of the support beam or t member is not parallel to the floor, or where the load
supported by the threaded rod is not induced normal to the flange, the frame 102 can be
rotated about the fastener 121 so that the axis C-C of the clamping screw 118 ( is
oriented at an angle "0!" with t to the axis D—D of the threaded rod. As can be seen,
the frame 102 is rotatable from a position in which the axes C-C and D-D align with axis
A—A (, through and including the positions shown in FIGS. 6 and 7, in which the
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angle "0t" is approximately 135-degrees and 90—degrees, respectively. It will be appreciated
that the frame 102 can be rotated to any on within the range of "0t" = ISO-degrees
( in which axes C-C and D-D align along axis A-A) to "a" = 90-degrees (.
Once the swivel assembly 101 is adjusted to the desired position with respect to the clamp
102, the fastener 121 and nut 123 can be tightened to lock the swivel assembly and clamp
in the desired r orientation.
In practice, the frame 102, clamping screw 118, nuts 122, 123 and
fastener 121 can be manufactured and stocked in relatively large quantity, as they can be
used with any of a variety of different threaded rod sizes. The swivel assembly 101
r, may be manufactured and stocked in a variety of different configurations.
Specifically, ties of swivel assemblies 101 having different sizes tapped recess 125
corresponding to different threaded rod sizes may be manufactured and stocked separately
from the frame 102, ng screw 118 and nut 122. When an order is placed for a
quantity of clamps suitable for a particular size rod, swivel lies 101 having tapped
recesses 125 matching the particular rod size can be fit and engaged to tive frames
102 via fasteners 121 to produce clamps 100 configured to fit the particular rod. As will be
appreciated, this is an advantage because fewer frames 102, screws 118, nuts 122, 123 and
fasteners 121 need to be fabricated and stocked to meet incoming demand for clamps 100.
In some embodiments, a part number for each finished clamp 100 is
located on the swivel assembly 101. Not until final assembly is made, when the swivel
assembly 101 is fit to the frame 2, that the completed assembly becomes a unique part
number.
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Referring now to FIGS. 8-11, an embodiment of the disclosed clamp 200
is shown which incorporates a swivel assembly 201 to enable the clamp to engage a
threaded rod 203 at a variety of angles in a manner similar to that described in on to
the clamp 100 described in relation to
The difference, however, is that clamp 200 enables relative rotation of the
frame 202 and the swivel assembly 201 in a plane orthogonal to that of clamp 100. Thus,
as with clamp 100, clamp 200 may be advantageous in the event the flange of the support
beam or support member is not parallel to the floor, or where the load supported by the
threaded rod is not induced normal to the flange.
The clamp 200 of this embodiment can include some or all of the features
of the clamp l of FIGS. 1-3. In addition, clamp 200 may include a swivel assembly 201
that enables the clamp to rotate with respect to threaded rod 203.
The clamp 200 may have a frame portion 202 that es a tapped
plate 210 disposed n first and second side portions 204, 206 ( in the same
manner as described in relation to the The frame portion 202 may finther include a
clevis portion 230 engaged with the tapped plate 210. The clevis portion 230 may include
first and second spaced—apart clevis plate portions 232, 234 joined together at respective
ends by a top clevis plate n 236 to form a general U~shape. As shown, the clevis
portion 230 is ed and "hung" over the tapped plate 210 so that the top clevis plate
portion 236 engages the tapped plate and the first and second spaced-apart clevis plate
portions 232, 234 depend downward. In some embodiments, the top clevis plate portion
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236 is fixed to the tapped plate 201, such as by crimping or other suitable connection
technique.
The clevis portion includes first and second openings 238, 240 in
respective first and second clevis plate portions 232, 234. A swivel assembly 201 rotatably
engages the clevis via these first and second openings 238, 240. The swivel ly 201
may comprise a swivel clevis portion 205 having first and second spaced-apart swivel
clevis plate portions 207, 209 joined er at respective ends by a bottom swivel clevis
plate portion 211 to form a general U-shape. The first and second swivel clevis plate
portions 207, 209 may be spaced apart so that the first and second openings 23 8, 240 align
with first and second swivel clevis plate openings 217, 219 in the first and second swivel
clevis plate portions 207, 209. A fastener 221 which in the illustrated embodiment is a cap
screw, may be received through the openings 21?, 238, 219, 240 to couple the clevis
portion 230 and frame 202 to the swivel clevis portion 205 of the swivel ly 201. A
nut 223 may engage the fastener 221 to selectively fix the ons of the swivel clevis
portion 205 and the clevis portion 230/frame 202.
The bottom swivel clevis plate portion 211 may include a tapped recess
225 sized to receive the threaded rod 203 n. A nut 227 may be oned within the
swivel clevis portion 205 adjacent the tapped recess 225 to receive a threaded portion 229
of the threaded rod 203 to fix the threaded rod 203 axially in one direction with respect to
the clamp 100.
As can be seen in the clamp 200 aligns the axis A-A of the
clamping screw 218 with the tapped recess 225 in the bottom swivel clevis plate portion
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211 so that the clamping axis and the axis of the threaded rod 203 are coaxial. As such,
loads applied to the clamp 200 by the threaded rod 203 will be ly applied along the
axis A-A to the ment point between the clamping screw 218 and the flange of the
support beam or support member. As with the previous embodiment, this l
alignment eliminates loading eccentricity, thereby improving clamp strength and
performance.
] As can be seen in the swivel assembly 201 has a swivel axis E-E
defined by the udinal axis of the fastener 22]. In the position shown in FIGS. 8 and 9,
the swivel axis BB is orthogonal to axis A-A. To accommodate instances in which the flange
of the support beam or support member is not el to the floor, or where the load
supported by the threaded rod is not d normal to the flange, the frame 202 and clevis
portion 230 can be d about the fastener 221 so that the axis F-F of the clamping
screw 218 () is oriented at an angle "B" with respect to the axis G-G of the threaded
rod 203. As can be seen, the frame 202 is rotatable from a position in which the axes F—F
and G—G align with axis A-A (see , through and including the positions shown in
FIGS. 10 and 11, in which the angle "[3" is approximately l35-degrees and lOS-degrees,
respectively. It will be appreciated that the frame 202 and clevis portion 230 can be rotated
to any position within the range of "[3" = l80—degrees ( in which axes F—F and G—G
align along axis A—A) to "B" = lOS-degrees (). Once the swivel assembly 201 is
adjusted to the desired position with respect to the clamp 202 and clevis portion 230, the
fastener 221 and nut 223 can be tightened to lock the swivel assembly and clamp in the
desired angular orientation.
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In ce, the frame 202, clamping screw 218, nuts 222, 223, fastener
221 and tapped plate 210 can be manufactured and stocked in relatively large quantity, as
they can be used with any of a variety of ent ed rod sizes. The swivel assembly
201 however, may be manufactured and stocked in a variety of different configurations.
Specifically, quantities of swivel assemblies 201 having ent tapped recess 225 sizes
ponding to different threaded rod sizes may be manufactured and stocked separately
from the frame 202, clamping screw 218, nuts 222, 223, fastener 221 and tapped plate 210.
When an order is placed for a quantity of clamps suitable for a particular size rod, swivel
assemblies 201 having tapped recesses 225 matching the particular rod size can be fit and
engaged to respective frames 202 and clevis portions 230 via fasteners 221 to produce
clamps 200 configured to fit the particular rod. As will be appreciated, this is an advantage
because fewer frames 202, screws 218, nuts 222, 223, fasteners 221 and tapped plates 210
need to be fabricated and stocked to meet incoming demand for clamps 200.
In some embodiments, a part number for each finished clamp 200 is
located on the swivel assembly 201. Not until final assembly is made, when the swivel
assembly 201 is fit to the frame 202 and clevis portion 230, that the completed assembly
becomes a unique part number.
As will be appreciated, the disclosed design provides an ed degree of
commonality so that multiple sizes ofclamps need no longer be stocked. Thus, a single frame
size can be used for several sizes of rod drops. During the cturing process, clamp
frames can be produced to inventory without being designated to a particular rod drop size.
The clamp frame can be common to all sizes of rod drops, and as such it can be a shared
component not requiring separate stock keeping units (sku's) to be maintained in finished
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goods. It is not until the tapped plate (or swivel assembly) is engaged with the associated
frame that the clamp assembly s a finished good product. Through this process,
inventories are permitted to be maintained at a lower finished good level, and excess and
obsolete inventories of a particular size can be eliminated.
In use, the clamp may be led along the length of a building beam or
truss in a perpendicular attitude to the axis of the beam. To secure the clamp to the beam or
truss, the clamp receives the flange of the beam into the cut-out area in the clamp frame. Final
attachment to the beam flange is provided by the tightening of the screw on to the top of the
flange beam. The engagement of the screw point securely connects the beam clamp to the
beam flange (upper or lower). A ‘/2" X 1 V2" long screw can be provided for this purpose. To
receive the screw, a 1/2" square nut is provided pre-assembled with the screw. All—thread rod is
typically used to provide a means of attachment for electrical or mechanical conduit and pipe
trapezes which are a typical application. Based upon the required load for the attachment(s),
one of several, various diameter read rods may be employed. The customer can thread
the all-thread rod into the base of the tapped plate fiom below the clamp thus providing a
means of attachment for the trapeze. The frame of the clamp is also provided with two y
aligned recesses in nt sides of the clamp frame. These recesses are provided to allow a
swivel connection in the event that the beam flanges are not parallel to the floor or the load is
not d normal to the beam flange. For embodiments incorporating a swivel connection,
the all-thread rod can be threaded into a tapped recess in a bottom plate portion of the swivel
connection.
While the clamp has been disclosed with reference to n
embodiments, numerous modifications, alterations and changes to the bed
239l4l2v1
embodiments are possible t departing from the spirit and scope of the invention, as
defined in the appended claims. Accordingly, it is intended that the present invention not
be limited to the described embodiments, but that it has the full scope defined by the
ge of the following claims, and equivalents thereof.
In this specification, the terms “comprise99 $4 ’3 66
, comprises , comprising” or
similar terms are ed to mean a non-exclusive inclusion, such that a system, method or
apparatus that comprises a list of elements does not include those elements solely, but may
well include other ts not listed.
The reference to any prior art in this specification is not, and should not be
taken as, an acknowledgement or any form of suggestion that the prior art forms part of the
common general knowledge.
2391412v1
Claims (15)
1. A clamp for ad assemblies, comprising: a clamp portion comprising a frame having first and second spaced apart side portions connected at respective ends to a top portion, the first and second side portion comprising first and second openings hrough to form a clamp opening; a plate disposed h third and fourth openings in the first and second spaced apart side portions, respectively, the plate including a tapped recess for receiving a threaded rod; and a screw disposed in a tapped recess in the top portion, an engagement end ofthe screw being selectively extendible into the clamp opening to engage a structural member inserted within the clamp opening to couple the structural member to the threaded rod; a clevis portion having first and second spaced apart clevis plate portions joined at respective ends by a top clevis plate n, the top clevis plate portion engaged with the plate, the first and second clevis plate portions having first and second openings for engaging a swivel ly; the swivel assembly comprising a swivel clevis portion having first and second spaced apart swivel clevis plate ns joined at respective ends by a bottom swivel clevis plate portion, the first and second swivel clevis plate portions comprising first and second swivel clevis plate openings; and a fastener disposed in the first and second openings ofthe clevis portion and the first and second swivel clevis plate openings of the swivel clevis portion; 2391412v1 wherein the swivel assembly is rotatable with t to the clamp about a longitudinal axis of the fastener; and wherein the bottom swivel clevis plate portion comprises a tapped hole for receiving a threaded rod.
2. The clamp of claim 1, wherein first and second ends of the plate extend through the third and fourth openings, and the plate is cn'mped nt to the third and fourth openings to fix the plate to the clamp portion, thereby closing the frame into a rectangular tubular profile.
3. The clamp of claim 1, wherein a longitudinal axis of the screw is coaxial with the tapped recess of the plate such that a clamping axis of the clamp and a udinal axis of the threaded rod are coaxial whereby loads d to the clamp by the threaded rod are directly applied along the clamping axis, Without load eccentricity.
4. The clamp of claim 1, wherein the bottom swivel clevis plate portion is rotatable between a first position in which the tapped recess of the bottom swivel clevis plate is aligned with a longitudinal axis of the screw, and a second axis in which the tapped recess of the bottom swivel clevis plate is ed at an angle B with respect to the longitudinal axis of the screw.
5. The clamp of claim 4, wherein B is between l80-degrees and lOS—degrees.
6. The clamp of claim 4, wherein the swivel assembly is selectively fixable to the clamp at a desired position by tightening the er. 239l412v1
7. The clamp of claim 1, further comprising a first nut positioned adjacent the top portion of the frame for receiving a threaded portion of the screw.
8. A clamp for overhead assemblies, comprising: a clamp portion comprising a frame having first and second spaced apart side portions connected at respective ends to a top portion, the first and second side portion comprising first and second openings therethrough to form a clamp opening; a plate disposed through third and fourth gs in the first and second spaced apart side portions, respectively, the plate including a tapped recess; a screw disposed in a tapped recess in the top n, an ment end of the screw being selectively extendible into the clamp opening; and a swivel ly comprising a clevis portion having first and second spaced apart clevis plate portions joined at respective ends by a bottom clevis plate portion, the bottom clevis plate portion having a tapped recess for receiving a threaded rod; wherein the first and second spaced apart clevis plate portions having corresponding first and second clevis plate openings oned to align with third and fourth openings in the first and second side portions, and to receive a fastener therethrough to rotatably engage the clamp portion to the swivel assembly.
9. The clamp of claim 8, wherein a longitudinal axis of the screw is coaxial with the tapped recess of the bottom clevis plate portion such that a clamping axis of the clamp and a longitudinal axis of a threaded rod are coaxial y loads applied to the clamp 2391412vl by the threaded rod are directly applied along the clamping axis, Without load eccentricity.
10. The clamp of claim 8, wherein the swivel is rotatable between a first position in which the tapped recess of the bottom clevis plate portion is aligned with a longitudinal axis of the screw, and a second axis in which the tapped recess is oriented at an angle a with respect to the longitudinal axis of the screw.
11. The clamp of claim 10, n a is between ISO-degrees and 90—degrees.
12. The clamp of claim 8, wherein the swivel assembly is selectively fixable to the clamp at a desired position by tightening the fastener.
13. The clamp of claim 8, fiarther sing a first nut positioned adjacent the top portion of the frame for receiving a ed n of the screw, and a second nut positioned adjacent a top surface of the bottom clevis plate n for receiving a threaded portion of a threaded rod.
14. A method ofproviding a clamp for overhead assemblies, comprising: stocking a first quantity of clamp portions, each of the clamp portions sing: a frame having first and second spaced apart side portions connected at respective ends to a top portion, the first and second side portion comprising first and second openings therethrough to form a 239l412v1 clamp opening for receiving a structural member therein, the first and second spaced apart side portions further comprising third and fourth openings; and a screw disposed in a tapped recess in the top n, an engagement end of the screw being selectively extendible into the clamp g to engage the ural member to couple the structural member to the threaded rod; and stocking a second quantity oftapped plates, each of the tapped plates configured to engage the frame by being disposed through the third and fourth openings in the first and second spaced apart members, each of the tapped plates having a tapped recess sized to e a threaded rod of a predetermined size, wherein the second quantity is greater than the first quantity, and wherein the at least first and second tapped plates of the second quantity of tapped plates tapped recesses of different sizes; selecting one tapped plate from the second quantity of tapped plates, wherein the selected tapped plate has a tapped recess configured to receive a predetermined size threaded rod; and ng the selected one tapped plate with the third and fourth openings of the clamp portion to form a clamp configured to engage the preselected threaded rod.
15. The method of claim 14, wherein stocking a second quantity of tapped plates comprises stocking a plurality of tapped plates each having tapped recesses of ent sizes. 2391412v1 24 16 22
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/037,478 US9157574B2 (en) | 2013-09-26 | 2013-09-26 | Folded beam clamp |
US14/037478 | 2013-09-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ627591A NZ627591A (en) | 2015-12-24 |
NZ627591B true NZ627591B (en) | 2016-03-30 |
Family
ID=
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