# US 9,883,269 B2 · Notification device and signal display light > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,883,269 B2 - Document ID: US9883269B2 - Status: Granted - Kind: B2 - Application number: 15/322,332 - Filed: 2015-02-18 - Published: 2017-05-11 - Granted: 2018-01-30 - Earliest claimed: 2014-07-01 - Assignees: Patlite Corporation - Applicants: Patlite Corporation - Inventors: Tetsuya Miyatake; Kazuya Nishimatsu; Yusuke Tone; Daisuke Shigematsu - Web page: https://patentgrep.com/patent/US9883269B2 ## CPC - H04R 1/028: {associated with devices performing functions other than acoustics, e.g. electric candles} - H04R 1/02: Casings; Cabinets {; Supports therefor;} Mountings therein (H04R1/28 takes precedence {; attachments for microphones H04R1/08; mounting of transducers in earpieces H04R1/1075}) - H04R 1/345: {for loudspeakers} - F21V 3/02: characterised by the shape - F21V 31/00: Gas-tight or water-tight arrangements - F21W 2111/00: Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 - F21Y 2115/10: Light-emitting diodes [LED] - H04R 2499/11: Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's - 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) - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract A main body case 9 includes an output opening 43 for outputting sound from a sound source to an opposing space between an upper main wall 33 and a lower main wall 34. The main body case 9 includes a front main wall 41 for preventing entering of a water droplet to the output opening 43 and for guiding the sound to a rear side B, and a rear main wall 35 for reflecting the sound to a front side F. A first space 51 between the front main wall 41 and the rear main wall 35, a second space 52 surrounded by a left surface 41C of the front main wall 41 and the rear main wall 35 and the upper main wall 33 and the lower main wall 34 and a third space 53 surrounded by a right surface 41D the front main wall 41 and the rear main wall 35 and the upper main wall 33 and the lower main wall 34 are communicating with one another along a crosswise direction Y at a rear end part of each of these spaces. ## Claims ### Claim 1 A notification device for notifying sound to a front side including: a sound source; and a main body case including an upper main wall extending longitudinally and laterally, a lower main wall extending longitudinally and laterally and opposing to the upper main wall from a lower side, and an output opening for outputting sound from the sound source to an opposing space between the upper main wall and the lower main wall from an upper side, wherein the main body case includes: a front main wall provided at a front side of the output opening and bridged between the upper main wall and the lower main wall, the front main wall for preventing entering of a water droplet to the output opening from a front side and for guiding sound outputted from the output opening to a rear side; and a rear main wall extending vertically and laterally and opposing to an output opening side of the front main wall from a rear side with an interval, the rear main wall for reflecting sound outputted from the output opening to a front side, wherein a first space between the front main wall and the rear main wall, a second space surrounded by a left surface of the front main wall and the rear main wall and the upper main wall and the lower main wall, and a third space surrounded by a right surface of the front main wall and the rear main wall and the upper main wall and the lower main wall are communicating with one another along a crosswise direction at a rear end part of each of the first space, the second space and the third space. ### Claim 2 (depends on 1) The notification device according to claim 1, wherein the main body case includes: a left main wall bridged between the upper main wall and the lower main wall at a position spaced to a left side from the front main wall and spaced to a front side from the rear main wall, the left main wall for guiding sound reflected to a front side at the rear main wall to a front side; and a right main wall bridged between the upper main wall and the lower main wall at a position spaced to a right side from the front main wall and spaced to a front side from the rear main wall, the right main wall for guiding sound reflected to a front side at the rear main wall to a front side, wherein the second space is divided into a fourth space on a left side and a fifth space on a right side by the left main wall, the third space is divided into a sixth space on a left side and a seventh space on a right side by the right main wall, the first space, the fourth space, the fifth space, the sixth space and the seventh space are communicating with one another along the crosswise direction at a rear end part of each of the first space, the fourth space, the fifth space, the sixth space and the seventh space. ### Claim 3 (depends on 2) The notification device according to claim 2, wherein each part communicating along the crosswise direction of the first space, the fourth space, the fifth space, the sixth space and the seventh space is penetrating the main body case along the crosswise direction. ### Claim 4 (depends on 3) The notification device according to claim 3, wherein a front surface of the rear main wall is a flat surface. ### Claim 5 (depends on 3) The notification device according to claim 3, wherein a rear surface of the front main wall is convexly curved to a front side. ### Claim 6 (depends on 4) The notification device according to claim 4, wherein a rear surface of the front main wall is convexly curved to a front side. ### Claim 7 (depends on 2) The notification device according to claim 2, wherein the front main wall, the left main wall and the right main wall are integrally molded with the main body case. ### Claim 8 (depends on 7) The notification device according to claim 7, wherein a front surface of the rear main wall is a flat surface. ### Claim 9 (depends on 7) The notification device according to claim 7, wherein a rear surface of the front main wall is convexly curved to a front side. ### Claim 10 (depends on 2) The notification device according to claim 2, wherein a front surface of the rear main wall is a flat surface. ### Claim 11 (depends on 10) The notification device according to claim 10, wherein a rear surface of the front main wall is convexly curved to a front side. ### Claim 12 (depends on 2) The notification device according to claim 2, wherein a rear surface of the front main wall is convexly curved to a front side. ### Claim 13 (depends on 2) The notification device according to claim 2, wherein each front tip part of the front main wall, the left main wall and the right main wall is extended to the neighborhood of an outer edge of the main body case. ### Claim 14 (depends on 1) A signal indicator lamp including the notification device according to claim 1, further including a signal unit for transmitting predetermined signal at least one of an upper side and a lower side of the main body case. ### Claim 15 (depends on 14) The signal indicator lamp according to claim 14, wherein the main body case includes a space for a wiring of the signal unit at a rear side of the main body case. ### Claim 16 (depends on 14) The signal indicator lamp according to claim 14, wherein the main body case includes: a left main wall bridged between the upper main wall and the lower main wall at a position spaced to a left side from the front main wall and spaced to a front side from the rear main wall, the left main wall for guiding sound reflected to a front side at the rear main wall to a front side; and a right main wall bridged between the upper main wall and the lower main wall at a position spaced to a right side from the front main wall and spaced to a front side from the rear main wall, the right main wall for guiding sound reflected to a front side at the rear main wall to a front side, wherein the second space is divided into a fourth space on a left side and a fifth space on a right side by the left main wall, the third space is divided into a sixth space on a left side and a seventh space on a right side by the right main wall, the first space, the fourth space, the fifth space, the sixth space and the seventh space are communicating with one another along the crosswise direction at a rear end part of each of the first space, the fourth space, the fifth space, the sixth space and the seventh space. ### Claim 17 (depends on 16) The signal indicator lamp according to claim 16, wherein each part communicating along the crosswise direction of the first space, the fourth space, the fifth space, the sixth space and the seventh space is penetrating the main body case along the crosswise direction. ### Claim 18 (depends on 16) The signal indicator lamp according to claim 16, wherein a front surface of the rear main wall is a flat surface. ### Claim 19 (depends on 16) The signal indicator lamp according to claim 16, wherein a rear surface of the front main wall is convexly curved to a front side. ### Claim 20 A notification device including a signal unit for transmitting predetermined signal and an acoustic unit connected with the signal unit for notifying sound to a front side, wherein the acoustic unit includes: a sound source; and a main body case including an upper main wall extending longitudinally and laterally, a lower main wall extending longitudinally and laterally and opposing the upper main wall from a lower side, and an output opening for outputting sound from the sound source to an opposing space between the upper main wall and the lower main wall from an upper side, wherein the main body case includes: a front main wall provided at a front side of the output opening and bridged between the upper main wall and the lower main wall, the front main wall for preventing entering of a water droplet to the output opening from a front side and for guiding sound outputted from the output opening to a rear side; and a rear main wall extending vertically and laterally and opposing to an output opening side of the front main wall from a rear side with an interval, the rear main wall for reflecting sound outputted from the output opening to a front side, wherein a first space between the front main wall and the rear main wall, a second space surrounded by a left surface of the front main wall and the rear main wall and the upper main wall and the lower main wall, and a third space surrounded by a right surface of the front main wall and the rear main wall and the upper main wall and the lower main wall are communicating with one another along a crosswise direction at a rear end part of each of the first space, the second space and the third space.