Acoustic ear muff

Details Acoustic ear muff Acoustic ear muff

A - Human Necessities

42

B

2/78, 2/70.1

A42B 1/06 (2006.01) A42B 3/16 (2006.01) A61F 11/14 (2006.01) G10K 11/00 (2006.01)

Patent

CA 1315483

13 ABSTRACT An acoustic ear muff includes a pad or cup (2) which is made of rigid material and incorporates an opening for receiving one ear of the wearer, and a resilient sealing annulus (10) intended for abutment with the head of the wearer, and also resilient pressure-exerting means (5) connected to the shell of a protective helmet (1), a head strap or like head gear. The ear muff provides good acous- tic damping and a high degree of comfort, owing to the fact that the resilient pressure-exerting means is configured to produce a low pressing force substantially independently of head sizes which vary within given limits. The pressure- exerting means includes, to this end, a spring element in the form of a combined torsion and bending spring.

575915

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