# US 2013/0156985 A1 · Water-proof sound-transmitting member and method for producing same, and supported water-proof sound-transmitting member > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0156985 A1 - Document ID: US20130156985A1 - Status: Published application - Kind: A1 - Application number: 13/818,256 - Filed: 2012-04-02 - Published: 2013-06-20 - Earliest claimed: 2011-06-01 - Assignees: Nitto Denko Corporation - Inventors: Yuki Karube; Yuichi Abe; Yuri Horie - Web page: https://patentgrep.com/patent/US20130156985A1 ## CPC - B32B 7/06: permitting easy separation - H04R 31/00: Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor {(manufacture of microstructural arrangements of deformable or non-deformable structures in general B81C1/00182)} - H04R 1/086: {Protective screens, e.g. all weather or wind screens} - H04R 1/44: Special adaptations for subaqueous use, e.g. for hydrophone - Y10T 428/14: Layer or component removable to expose adhesive - Y10T 428/1476: Release layer - Y10T 428/149: Sectional layer removable - Y10T 428/28: Web or sheet containing structurally defined element or component and having an adhesive outermost layer - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Provided is a water-proof sound-transmitting member that can be separated reliably from a releasing paper when an overhanging portion of a tab is pulled. The method for producing the water-proof sound-transmitting member (2) of the present invention includes the steps of producing a laminate (52a) by laminating a first layer (71), a preliminary membrane body (61), a second layer (72), and a preliminary tab body (63) in this order; inserting a blade (90) into the laminate (52a) from the first layer (71) toward the preliminary tab body (63) to cut the first layer (71), the preliminary membrane body (61) and the second layer (72) so as to form respectively the first adhesive layer (21), the water-proof sound-transmitting membrane (11) and the second adhesive layer (22), and providing, in a surface of the preliminary tab body (63) on a side of the second layer (72), a notch (13n) that is aligned with end faces of the first adhesive layer (21), the water-proof sound-transmitting membrane (11) and the second adhesive layer (22); and cutting the preliminary tab body (63) to form the tab (13). ## Claims ### Claim 1 A method for producing a water-proof sound-transmitting member including a water-proof sound-transmitting membrane to be attached to a housing having a hole that allows sound to pass through the hole, and a tab that is provided to the water-proof sound-transmitting membrane and is to be separated after the water-proof sound-transmitting membrane is attached to the housing and that has an overhanging portion overhanging beyond the water-proof sound-transmitting membrane, the method comprising the steps of: producing a laminate by laminating a first layer including a first adhesive layer for bonding the water-proof sound-transmitting membrane to the housing, a preliminary membrane body including the water-proof sound-transmitting membrane, a second layer including a second adhesive layer for adhering the tab to the water-proof sound-transmitting membrane, and a preliminary tab body including the tab in this order; inserting a blade into the laminate from the first layer toward the preliminary tab body to cut the first layer, the preliminary membrane body and the second layer so as to form respectively the first adhesive layer, the water-proof sound-transmitting membrane and the second adhesive layer, and providing, in a surface of the preliminary tab body on a side of the second layer, a notch that is aligned with end faces of the first adhesive layer, the water-proof sound-transmitting membrane and the second adhesive layer; and cutting the preliminary tab body to form the tab. ### Claim 2 A water-proof sound-transmitting member comprising: a water-proof sound-transmitting membrane to be attached to a housing having a hole that allows sound to pass through the hole; a first adhesive layer for bonding the water-proof sound-transmitting membrane to the housing, the first adhesive layer being provided to a side of one surface of the water-proof sound-transmitting membrane; a second adhesive layer provided to a side of the other surface of the water-proof sound-transmitting membrane; and a tab that is provided on the second adhesive layer and is to be separated after the water-proof sound-transmitting membrane is attached to the housing and that has an overhanging portion overhanging beyond the water-proof sound-transmitting membrane, wherein a notch that is aligned with end faces of the first adhesive layer, the water-proof sound-transmitting membrane and the second adhesive layer is formed on a surface of the tab on a side of the second adhesive layer so as to demarcate the overhanging portion. ### Claim 3 (depends on 2) The water-proof sound-transmitting member according to claim 2, wherein the overhanging portion has an annular or frame shape surrounding the water-proof sound-transmitting membrane. ### Claim 4 (depends on 2) The water-proof sound-transmitting member according to claim 2, wherein the water-proof sound-transmitting membrane is composed of a fluororesin. ### Claim 5 (depends on 4) The water-proof sound-transmitting member according to claim 4, wherein the fluororesin is polytetrafluoroethylene. ### Claim 6 (depends on 2) A supported water-proof sound-transmitting member comprising: the water-proof sound-transmitting member according to claim 2; and a releasing paper that is adhered to the water-proof sound-transmitting membrane via the first adhesive layer and that has a surface treated with a releasing treatment on a side of the water-proof sound-transmitting membrane.