Office pod and a soundproofing wall structure

Abstract

An office pod enclosing a soundproof workspace inside of the pod, comprising a wall structure formed of a sound absorbing element and a skin layer, wherein the skin layer has a coincidence frequency outside of a predetermined human speech frequency region.

1 . An office pod enclosing a soundproof workspace inside of the pod, comprising:
 a wall structure formed of a sound absorbing element and a skin layer, said skin layer forming an exterior surface of the office pod followed by the sound absorbing element facing an interior of the office pod, wherein the skin layer has a coincidence frequency outside of a predetermined human speech frequency region defined based on frequencies at which human speech has the greatest intensity.   
     
     
         2 . The office pod of  claim 1 , wherein the skin layer is the only sound stopping layer in the wall structure. 
     
     
         3 . The office pod of  claim 1 , wherein the sound absorbing element has a total thickness greater than 85 mm. 
     
     
         4 . The office pod of  claim 1 , wherein the sound absorbing element comprises a first sound absorbing material layer and second sound absorbing material layer of which the second sound absorbing material layer is closer to the interior of the office pod and forms an inner liner layer. 
     
     
         5 . The office pod of  claim 1 , comprising at least one air layer in between the skin layer and a sound absorbing material layer of the sound absorbing element. 
     
     
         6 . The office pod of  claim 5 , wherein the total thickness of the air layer(s) is less than half of the total thickness of the sound absorbing element. 
     
     
         7 . The office pod of  claim 1 , wherein the sound absorbing element has an overall flow resistivity below 100 kPas/m 2 . 
     
     
         8 . The office pod of  claim 4 , wherein
 the first sound absorbing material layer has a flow resistivity within the range extending from 4 to 30 kPas/m 2 , and   the second sound absorbing material layer has a flow resistivity at maximum of 100 kPas/m 2 .   
     
     
         9 . The office pod of  claim 1 , wherein the sound absorbing element is of dustproof material(s). 
     
     
         10 . The office pod of  claim 1 , wherein the total thickness of the wall structure is less than 200 mm. 
     
     
         11 . The office pod of  claim 1 , comprising the skin layer attached to load-bearing support structures of the office pod so as to provide the support structures with cross-dimensional rigidity. 
     
     
         12 . A soundproofing wall structure formed of a sound absorbing element and a skin layer, wherein the skin layer has a coincidence frequency outside of a predetermined human speech frequency region defined based on frequencies at which human speech has the greatest intensity.