Acoustic mount

Details Acoustic mount Acoustic mount

1999-10-08

2001-07-31

King, Anita (Department: 3632)

Supports

Resilient support

Including additional energy absorbing means, e.g., fluid or...

C248S610000, C052S145000

Reexamination Certificate

active

06267347

ABSTRACT:

TECHNICAL FIELD
The present invention is concerned with acoustic mounting devices that may be used in any application requiring acoustic isolation of one part from another.
BACKGROUND ART
In many instances, it is desirable to isolate one part of a construct from vibrations originating in another part of the construct. Even in cases where the two parts are essentially separate but for a small number of connection points, the vibrations may still be transferred via these connection points.
In vehicles for example, the driver/passenger cabin needs to be isolated from vibrations generated by the engine. Similarly, some scientific instruments consist of a sensor and a motor used for positioning the sensor. The sensor may need to be isolated from vibrations emanating from the motor so that measurements taken by the sensor are not affected by the vibrations. In multidwelling complexes, the rooms should ideally be acoustically isolated so that noises originating from one room are not heard in adjacent rooms.
Building structures conventionally have living spaces separated by block wall, which generally consist of concrete slabs. A thinner, lighter wall surface such as plasterboard is often used to cover the block wall and is mounted so as to leave a gap between the thinner wall and the block wall. This spacing is maintained by mounting brackets arranged in a network which also serve to attach the thinner wall to the block wall.
A significant problem with the above arrangement is that low frequency vibrations and sounds are easily transmitted from one thin wall, through the mounting brackets and the block wall, through to the thin wall disposed on the other side of the block wall.
One method of reducing noise and vibration transmission between rooms involves coating the mounting brackets with a sound absorbing material such as a rubber material, which serves to dampen the sound.
These sound absorbing mounts are expensive to manufacture because they involve stamping the sound absorbing material onto the actual mount structure. The layer of sound absorbing material coating the mount is quite thin, and although it does reduce the amount of noise transferred between rooms, it is still not entirely effective.
It is an object of the present invention to provide an effective acoustic mount which is of simpler construction than the prior art.
SUMMARY OF THE INVENTION
According to a broad aspect of the present invention, there is provided an acoustic mount for isolating a first part from acoustic vibrations existing in a second part.
The acoustic mount includes a mounting clip, a sound absorbing insert or plug and a bush. The mounting clip has an orifice for receiving the sound absorbing insert. The insert also has an orifice for receiving the bush, such that when the acoustic mount is fully assembled, the bush is not in direct contact with the mounting clip.
Preferably, the orifice in the mounting clip includes a single start thread, and the sound absorbing insert has an externally threaded portion which cooperates with the single start thread of the mounting clip to allow the insert to be screwed into position. This provides for a convenient and secure method of assembling the device.
Advantageously, the diameter of the head of the bush should be greater than the diameter of the orifice in the mounting clip, so that in the event of fire, the bush is prevented from slipping through the orifice of the mounting clip if the sound absorbing insert melts, thus preventing collapse of the wall structure.
Acoustic mounts of the present invention have the advantage that they are cheaper to manufacture than conventional mounts, have superior sound absorbing qualities over conventional mounts, are easy to assemble on site and it may be used in conjunction with other structures.
The invention sets out to provide a useful alternative to the conventional mounts described above, and to ameliorate, if not entirely suppress low frequency noise transmission between two parts of a particular construct.


REFERENCES:
patent: 5310276 (1994-05-01), Bergers et al.
patent: 5318282 (1994-06-01), Schaefer
patent: 5335893 (1994-08-01), Opp
patent: 5609329 (1997-03-01), Scholl
patent: 5651535 (1997-07-01), David
patent: 5984283 (1999-11-01), Tsuiki et al.
patent: 6029942 (2000-02-01), Daddis, Jr. et al.

Affiliated with

Also associated with

Rating

Acoustic mount does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic mount, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic mount will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2444042