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Sound attenuating walls
| Details |
Inventors: Lundberg, Borje; Samuelsson, Bjorn;
Assignee: BPA Byggproduktion AB (Stockholm, SW)
Primary Examiner: Purser; Ernest R.
Assistant Examiner: Farber; Robert
Attorney, Agent or Firm: Holman & Stern
A sound attenuating wall comprises a skeleton frame, surface layers secured thereto, skeleton frame members, and an insulation provided between the skeleton frame members and the surface layers, respectively. The skeleton frame members are formed by two elements which in point of strength act separately of each other and are interconnected by portions of material which are weak or slender in the direction of the plane of the wall. The insulation disposed in the wall fills out only part of the space therein. |
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DETAILED DESCRIPTION What we claim and desire to secure by Letters Patent is: 1.
A sound attenuating wall including members defining a skeleton frame, and surface coverings fixed on each side of said frame, wherein at least one of the members defining the skeleton frame comprises a pair of separately acting elements interconnected by portions of material which are weakened or slender in a direction at right angles to the plane of the wall, and wherein each element has a flange portion projecting essentially in a direction parallel to the plane of the wall, the edges of said flanges remote from the element being interconnected by the weakened or slender material portions.
2.
The sound attenuating wall as claimed in claim 1, wherein the two elements are integral U-sections, and adjoining flange portions of the respective section are interconnected at their outer edges by means of weakened material portions.
3.
The sound attenuating wall as claimed in claim 1, wherein one element of the member is a U-shaped sheet steel section whereas the other element of the member is a stud of wood having a sheet steel flange strip secured thereto, and wherein a flange portion of the first mentioned element is connected, via weakened or slender portions of material, with the flange strip secured to the other element.
4.
The sound attenuating wall as claimed in claim 2, wherein the weakened portions of material interconnecting the elements of the skeleton frame members are formed by tongue-shaped portions integral with the adjoining flanges.
5.
The sound attenuating wall as claimed in claim 2, wherein the weakened portions of material interconnecting the adjoining flanges of the two elements of the frame members are thinned.
6.
The sound attenuating wall as claimed in claim 1 further including sound insulating or absorbing material disposed in the space between the skeleton frame members and the surface coverings, the sound insulating or absorbing material being adapted entirely to fill out but a restricted portion of each of the spaces existing between and defined by the skeleton frame members and the surface coverings
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