Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
CA 02552516 2011-12-07
ENERGY TRANSMISSION CONTROL MOUNT
Field of the Invention
[0001] The present invention relates generally to energy transmission
control
and in particular, to an energy transmission control mount designed to reduce
transmission of energy such as vibration and sound between components such as
for
example, building structures.
Background of the Invention
[0002] Insulating building structures to inhibit the transmission of
vibration
and sound from one region to another is common in many environments. For
example, vibration dampening pads for use on floors to inhibit vibration from
traveling through floor surfaces are well known. Until recently, very little
was done
however to attempt to inhibit vibration and sound from travelling through
walls.
[0003] U.S. Patent No. 6,267,347 to Ryan et al. discloses an acoustic
mount
for isolating wall structures. The acoustic mount comprises a mounting clip, a
sound
absorbing inset and a bush. The mounting clip has an orifice defining a single
start
thread for engaging the thread on the outer surface of a stub on the sound
absorbing
insert. The sound absorbing insert has an insert for receiving the bush. The
sounding
absorbing insert is formed of soft rubber and has dimples thereon. The bush
when
received by the sound absorbing insert is isolated from the mounting clip.
[0004] In use, the mounting clip is placed either directly or indirectly in
contact with a thin wall or plaster board, while the bush is placed indirectly
in contact
with a block wall. The sound absorbing insert, which isolates the bush from
the
mounting clip, dampens the transmission of low frequency noise between the
block
wall and the thin wall or plaster board.
[0005] Another mount to isolate walls and ceilings is manufactured by
Kinetics Noise Control Inc. of Dublin, Ohio and is sold under the name
IsoMaxTm.
The IsoMax mount is in the form of a resilient sound isolation clip designed
to attach
to ceiling joists, wall studs or masonry. Layers of gypsum or plaster board
are hung
onto furring channels defined by the isolation clip.
[0006] Although the above mounts help to inhibit the transmission of
vibration and sound between structures, they are costly to manufacture,
complex and
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expensive to consumers. It is therefore an object of the present invention to
provide a
novel energy transmission control mount.
Summary of the Invention
[0007] Accordingly, in one aspect there is provided an energy transmission
control mount comprising:
a carrier having a first major surface, an opposite second major surface
and an aperture provided therein;
channels adjacent opposite ends of said first major surface; and
vibration dampening material on said carrier, said vibration dampening
material substantially lining said channels and substantially lining said
aperture, the
vibration dampening material substantially lining said aperture being isolated
from the
vibration dampening material substantially lining said channels and extending
over at
least a portion of said second major surface and over at least a portion of
said first
major surface, the vibration dampening extending over said first major surface
being
configured to retain a washer in alignment with said aperture.
[0008] In one embodiment, the vibration dampening material is
configured to
define a series of spaced ribs. The ribs are parallel and are generally
equally spaced.
On the first surface, the vibration dampening material is configured to define
a disc.
A washer is disposed on the disc. The vibration dampening material
substantially
lines the aperture of the washer and terminates at a flange overlying a
portion of the
washer to retain the washer to the disc.
[0009] In one embodiment, the ends of the carrier are folded back
over the
first surface of the carrier to define the channels and are sized to receive
flanges of a
furring channel.
[0010] According to another aspect there is provided an energy
transmission
control mount assembly to reduce transmission of energy between a first
building
structure component and a second building structure component, comprising:
a channel-like member adapted to be secured to the first building
structure component;
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a carrier receiving and retaining said channel-like member, said carrier
being adapted to be structurally secured to said second building structure
component
and having an aperture provided therein;
vibration dampening material acting between at least one of said
channel-like member and carrier, and said carrier and second building
structure
component; and
a fastener passing through said aperture to secure said carrier to the
second building structure component, wherein the vibration dampening material
acts
between said carrier and said second building structure component and
substantially
lines said aperture to isolate the fastener from said carrier and wherein the
vibration
dampening material is configured to retain a washer in alignment with said
aperture
through which said fastener passes.
[0011] In one embodiment, the vibration dampening material acts
between
both the channel and carrier and the carrier and second building structure
component.
The vibration dampening material is permanently bonded to the carrier. An
aperture
is provided in the carrier through which a fastener passes to secure the
carrier to the
second building structure component.
100121 According to yet another aspect there is provided an energy
transmission control mount to act between a pair of components comprising:
a carrier having a first major surface and an opposite second major
surface and an aperture provided therein;
vibration dampening material on said carrier, said vibration dampening
material substantially lining said aperture and extending over at least a
portion of said
second major surface and over at least a portion of said first major surface,
the
vibration dampening material extending over said second major surface being
configured to bear against a first of said components and the vibration
dampening
material extending over said first surface being configured to retain a washer
in
alignment with said aperture; and
retaining structure on the first major surface of said carrier configured
to retain a second of said components.
100131 According to still yet another aspect there is provided an
building
structure comprising:
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a first building structure element;
a second building structure element;
an energy transmission control mount assembly to reduce transmission
of energy between said first building structure element and said second
building
structure element, said energy transmission control mount assembly comprising:
a channel-like member adapted to be secured to the first
building structure element;
a carrier receiving and retaining said channel-like member, said
carrier being adapted to be structurally secured to said second building
structure
element, said carrier having a first major surface and an opposite second
major
surface and having an aperture provided therein; and
vibration dampening material on said carrier, said vibration
dampening material substantially lining said aperture and extending over at
least a
portion of said second major surface and over at least a portion of said first
major
surface, the vibration dampening material extending over said second major
surface
being configured to bear against said second building structure element and
the
vibration dampening material extending over said first major surface being
configured
to retain a washer in alignment with said aperture; and
a fastener passing through said aperture to secure said carrier to the
second building structure element.
[0014] The energy transmission control mount is effective, easy to
install and
inexpensive to manufacture. Its one-piece construction makes the energy
transmission control mount simple to use.
Brief Description of the Drawings
[0015] Embodiments will now be described more fully with reference to
the
accompanying drawings in which:
[0016] Figure 1 is a perspective view of an energy transmission
control
mount;
[0017] Figure 2 is a rear elevational view of the energy transmission
control
mount of Figure 1; and
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[0018] Figure 3 is a side cross-sectional view of the energy
transmission
control mount interposed between a wall stud and drywall and secured to the
wall stud
via a fastener.
Detailed Description of the Embodiments
[0019] Turning now to Figures 1 and 2, an energy transmission control
mount
for isolating components such as for example, building structures is shown and
is
generally identified by reference numeral 10. In this particular example,
energy
transmission control mount 10 acts between a wall stud and a wall structure
such as
for example drywall, plaster board, gypsum or the like to reduce the
transmission of
energy between the wall stud and the wall structure. As can be seen, the
energy
transmission control mount 10 comprises a generally rectangular carrier 12
formed of
metal such as for example steel. The top and bottom ends 14 and 16 of the
carrier 12
are folded back over the front surface 18 of the carrier 12 to define channels
20.
Vibration dampening material 22 substantially lines each of the channels 20. A
central aperture 26 is also provided through the carrier 12. Vibration
dampening
material 30 substantially lines the aperture 26 and extends over a portion of
both the
front surface 18 and the back surface 32 of the carrier 12. The vibration
dampening
material 22 and 30 may be for example polyurethane bonded recycled rubber,
polyether urethane foam or other suitable energy absorbing material.
[0020] On the back surface 32, the vibration dampening material 30 is
configured to define a plurality of vertically and generally equally spaced,
horizontal
ribs 34. On the front surface 18, the vibration dampening material 30 is
configured to
define a disc 36 on which a washer 38 is disposed. The vibration dampening
material
30 substantially lines the aperture of the washer 38 and forms an annular
flange 40
over the washer 38 to retain the washer on the disc 36. The vibration
dampening
material 22 substantially lining the channels 20 is isolated from the
vibration
dampening material 30 substantially lining the aperture 26 and extending over
the
front surface 18 of the carrier 12. The vibration dampening material 22 and 30
is
permanently bonded to the carrier 12
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100211 Turning now to Figure 3, the energy transmission control
mount 10 is
shown in use interposed between a wall stud 50 and drywall 52. Energy
transmission
control mount 10 is designed to increase the sound transmission loss
characteristics of
the wall stud and drywall assembly. During installation of the energy
transmission
control mount 10, a fastener 54 is passed through the aligned apertures of the
washer
38 and carrier 12 and engages the wall stud 50 to secure the energy
transmission
control mount 10 to the wall stud 50. The head of the fastener 54 rests on the
flange
40 to isolate the head of the fastener 54 from the washer 38. In this
position, the ribs
34 bear directly against the wall stud 50. A standard furring channel 56,
typically
formed of steel, is snapped into the front of the carrier 12 by inserting its
upper and
lower flanges 58 and 60, respectively, into the lined channels 20 thereby to
retain the
furring channel. Drywall fasteners (not shown) pass through the drywall 52 and
engage the furring channel 56 to secure the drywall 52 to the furring channel
56. In
this manner, the energy transmission control mount 10 acts between the drywall
52
and the wall stud 52 to reduce energy from being transmitted therebetween.
[0022] If energy such as vibration or sound is transmitted to the
wall stud 50,
the ribs 34 resist transmission of that energy to the carrier 12. The
vibration
dampening material 30 substantially lining the apertures of the carrier 12 and
the
washer 38 resists transmission of energy to the fastener 54. Energy that is
transmitted
to the carrier 12 moves to the extremities of the carrier. The vibration
dampening
material 22 lining the channels 20 resists transmission of this energy to the
furring
channel 56. In this manner, the energy transmission control mount 10 reduces
the
transfer of energy between the wall stud 50 and the furring channel 56 and
hence the
drywall 52.
[0023] In the example described above, the energy transmission control
mount
is shown interposed between a wall stud 50 and drywall 52. Those of skill in
the art
will however appreciate that the energy transmission control mount may be used
to
isolate other building structures such as for example floors and joists,
masonry and
wall studs, exterior walls and wall studs etc.
[0024] Although the energy transmission control mount is particularly
suited
to isolate building structures, the energy transmission control mount may be
used in
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other environments to isolate components to inhibit vibration/sound from
propagating
between components. For example, the energy transmission control mount may be
used in automobiles as an engine mount, or as a mount for vehicle body parts.
[0025] Although embodiments have been described, those of skill in the
art
will appreciate that variations and modifications may be made without
departing from
the spirit and scope thereof as defined by the appended claims.
