WO2016027766A1 - Image display device - Google Patents

Image display device Download PDF

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Publication number
WO2016027766A1
WO2016027766A1 PCT/JP2015/073014 JP2015073014W WO2016027766A1 WO 2016027766 A1 WO2016027766 A1 WO 2016027766A1 JP 2015073014 W JP2015073014 W JP 2015073014W WO 2016027766 A1 WO2016027766 A1 WO 2016027766A1
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WO
WIPO (PCT)
Prior art keywords
image display
sound
buzzer
display device
conduit
Prior art date
Application number
PCT/JP2015/073014
Other languages
French (fr)
Japanese (ja)
Inventor
信一 本田
大資 田中
吉野　誠
Original Assignee
Eizo株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eizo株式会社 filed Critical Eizo株式会社
Publication of WO2016027766A1 publication Critical patent/WO2016027766A1/en

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/22—Mountings; Casings

Definitions

  • the present invention relates to an image display device, and more particularly to an image display device for ships.
  • the image display device is characterized by low power consumption and high-accuracy image quality through image forming technologies such as liquid crystal, organic electroluminescence, and plasma display, as well as a flat and thin screen. It is popular in the field.
  • liquid crystal image display devices are mounted not only on personal digital assistants, car navigation systems, personal computers, and television receivers, but also on consoles such as ships and aircraft, and their importance is increasing.
  • the console of a ship or an aircraft is also referred to as an operation panel, a control console, a cabinet, or the like, and displays radar information, position information, and the like used when navigating a ship or an aircraft, for example.
  • Some of the consoles are compatible with multi-function displays. For example, chart radar, electronic chart display (Electronic Chart Display and Information System; ECDIS), conning display (centralized monitoring display), alert management system
  • other functions such as operation screen display are provided.
  • the liquid crystal image display device mounted on the console of such a ship or aircraft has a dustproof structure or a waterproof structure.
  • the liquid crystal image display device is often installed with the display screen obliquely upward as shown in FIG. 19, and the display screen is almost vertical like the liquid crystal image display device used in offices and homes. This is because there is a higher risk of dust and water getting into the interior from the gaps between the parts on the outer surface of the device as compared to the case where it is used.
  • IP31 indicates that it is protected against foreign solids having a diameter of 2.5 mm or more and is protected against water falling vertically from the top of the product.
  • IP65 indicates that the dust for dust resistance test is protected from entering, and that the product is protected against jet water from all directions with respect to the product with 12.5 liters of jet water per minute. ing.
  • Patent Document 1 describes a configuration in an electric scooter that emits a sound emitted downward from a buzzer built in an accelerator box through a hole formed in the lower frame of the accelerator box, and in particular.
  • the buzzer is disposed downward, the sound conduit inlet is connected to the buzzer, the sound conduit extends downward, and the outlet is connected to a hole formed in the lower frame. Has been.
  • Patent Document 2 describes a configuration in which a sound emitted upward from a buzzer built in an operation panel is emitted from a hole in the inner lid of the operation panel in the fire extinguishing system. Arranged upward, the inlet of the vibration cylinder is connected to the buzzer, the vibration cylinder extends upward and the outlet is connected to the hole of the inner lid, and the waterproof film sheet is connected to the inner lid A mode of covering the hole of is described.
  • the object of the present invention is to efficiently bypass the sound from the buzzer built in the main body of the device while considering the protection against the intrusion of solid matter such as dust and the protection against the intrusion of water, and near the image display surface of the device
  • Another object of the present invention is to provide an image display device having a configuration that maintains design by emitting sound to the outside.
  • An image display device includes an image display module, a buzzer disposed on the back side of the image display module, and a sound conduit that narrows and transmits the sound outlet while bypassing the sound emitted by the buzzer.
  • the sound from the buzzer is emitted from a window portion formed on the front side of the apparatus main body through the sound conduit.
  • the sound from the built-in buzzer is efficiently diverted and the sound is emitted from the window portion formed on the front side of the apparatus main body, it is against the intrusion of solid matter such as dust.
  • the design is maintained while considering protection and protection against water intrusion.
  • the window portion since the window portion has a slit shape, it is inconspicuous and excellent in design, and since the window portion is covered with a waterproof film for adjusting sound pressure, it is dustproof and waterproof. In addition to the structure, the sound pressure can be easily adjusted.
  • the thickness of the waterproof film is appropriately adjusted in a direction in which the sound pressure approaches a specified value within a range of 25 to 100 ⁇ m, 50 to 200 ⁇ m, 125 to 500 ⁇ m, for example.
  • the material of the sound conduit is preferably a material that does not cause unnecessary vibrations by resonating with sound from the buzzer, and is preferably waterproof. Accordingly, examples of the material of the sound conduit include elastomer, waterproof coated wood, and waterproof coated paper.
  • the sound conduit does not transmit unnecessary vibration to the frame of the apparatus main body when transmitting the sound from the buzzer. That is, it is preferable that the sound conduit is not fixed with a fixing metal fitting such as a screw or a bolt.
  • the present invention is characterized in that the sound conduit is made of an elastomer and is detachably fitted and connected at a predetermined location.
  • the sound conduit is excellent in waterproofness and does not transmit unnecessary vibration to the frame of the apparatus main body. That is, unlike the structure fixed by fixing means such as bolts, screws, soldering, adhesive bonding, welding, etc., by adopting a detachable fitting structure by the sound conduit made of elastomer, The configuration is such that vibrations other than sound are not directly transmitted.
  • the buzzer can be a commercial product.
  • the buzzer has a circular outer diameter based on the principle of bending vibration of a piezoelectric vibrator, and can emit a high sound pressure sound.
  • the buzzer can emit a high sound pressure sound by resonating the outer case based on the Helmholtz resonance principle.
  • the outer case of the buzzer be in a free vibration state so as not to transmit unnecessary vibration.
  • the present invention includes a buzzer support member that supports the buzzer on the terminal side, and an outer periphery of the buzzer support member and an inlet of the sound conduit are detachably fitted to each other, and the buzzer and the sound conduit are connected to each other. It is characterized by being non-contact.
  • the outer peripheral case of the buzzer is in a free vibration state, and the sound conduit transmits the sound from the buzzer while not transmitting vibrations other than the sound from the buzzer.
  • the sound conduit has a round shape at the entrance. This is because a commercially available product can be applied as the buzzer.
  • the sound conduit has an elongated shape at the outlet. This is because the window portion can be slit-shaped.
  • the image display device and its image display surface are rectangular in front view, and the window portion is slit-shaped, so that it is easy to make it visually inconspicuous.
  • the sound conduit is preferably bent at an angle of 70 degrees to 110 degrees. According to this, an angle range suitable for the sound conduit to bypass the image display module is obtained. That is, when the angle at which the pipe is bent is less than 70 degrees, the sound conduit takes a space, which is not preferable in terms of design. When the angle at which the pipe is bent is greater than 110 degrees, sound attenuation by the sound conduit is increased, and the degree of freedom in design is limited.
  • the angle at which the pipe is bent is most preferably about 90 degrees.
  • the present invention is characterized in that the inlet of the sound conduit has a round shape, the outlet of the sound conduit has an elongated shape, and the conduit of the sound conduit is bent at an angle of 70 degrees to 110 degrees. .
  • the sound conduit has a shape suitable for narrowing and transmitting the sound outlet while bypassing the sound emitted by the buzzer, and within a suitable angle range.
  • the dimensional ratio between the inner diameter of the inlet and the long side of the outlet is 10: 9 to 10:11, and the dimensional ratio between the inner diameter of the inlet and the short side of the outlet is 10: 1 to 10. : 2
  • the sound conduit is in a range suitable for narrowing and transmitting the sound outlet while bypassing the sound emitted by the buzzer. That is, the dimensional ratio between the inner diameter of the inlet and the long side of the outlet is 10: 9 to 10:11, so that the outer diameter of the buzzer and the inner diameter of the inlet of the sound conduit are approximated, and the buzzer It will effectively convey the sound that is emitted.
  • the dimensional ratio between the inner diameter of the inlet and the short side of the outlet is 10: 1 to 10: 2, so that the short side of the outlet of the sound conduit is less than 1/8 of the outer diameter of the buzzer.
  • the sound from the buzzer is made sufficiently smaller than the wavelength of the sound from the buzzer to suppress reflection of the sound in the sound conduit as much as possible, and the short side of the outlet of the sound conduit is 1/10 or more. Will be emitted outside.
  • the sound conduit it is preferable that an upper side and a lower piece are connected by a columnar member in order to suppress deformation of the outlet. Moreover, it is preferable that the sound conduit is formed with a flange portion in order to suppress the positional deviation of the outlet. Accordingly, the collar portion is configured to be fitted and positioned with a recess portion formed around the window portion of the apparatus main body.
  • a support portion on the outer periphery of the image display module there is a support portion on the outer periphery of the image display module, and a fixing bracket such as a screw or a bolt is inserted into a through hole formed in the support portion to fix the apparatus main body to the console, and a cover member is attached.
  • the lid member is formed with a notch portion corresponding to the window portion on a one-to-one basis, the fixing member is covered by the lid member, and the lid member and an image display surface of the apparatus main body are provided. It is arranged without difference in height at the boundary, and the sound from the window portion is emitted from a rectangular opening formed by the notch portion of the lid member and the apparatus main body.
  • the apparatus main body is installed from the front side of the console and a fixing bracket such as a screw or a bolt is inserted into the through hole and fixed to the console, the image display apparatus can be easily installed. Then, when the lid member is attached to the apparatus main body, the fixing member is covered by the lid member, and the lid member and the image display surface of the apparatus main body are arranged without any difference in height between the lid member and the design. High configuration. Further, since the buzzer sound from the window portion is emitted from a rectangular opening formed by the notch portion of the lid member and the apparatus main body, the design has a high design that does not make the presence of the buzzer. It becomes.
  • the window and the rectangular opening have a one-to-one correspondence.
  • the left and right lengths of the rectangular opening and the window are set equal.
  • the rectangular opening is set to have a narrower vertical width than the window.
  • the rectangular opening and the window are set to have the same left and right length, and the rectangular opening is set to have a narrower vertical width than the window.
  • the short side of the rectangular opening with respect to the outer diameter of the buzzer is made smaller than 1/8, which is sufficiently smaller than the wavelength of the sound from the buzzer, and the reflection of sound within the apparatus main body.
  • the short side of the rectangular opening is set to 1/10 or more, and the sound from the buzzer is emitted outside.
  • the rectangular opening is arranged with its height shifted to a position below the window.
  • the design is maintained while taking into consideration the protection against intrusion of solid matter such as dust and the protection against intrusion of water.
  • the rectangular opening is arranged at the same height as the window. As a result, it is easy to obtain a larger sound pressure.
  • the fact that the lid member and the image display surface of the apparatus main body are arranged with no difference in level refers to a state where there is no level difference that can be visually recognized, and the image of the lid member and the apparatus main body. If the display surface is smoothly connected, the display surface is arranged without any difference in height. As a result, the front of the apparatus looks flat.
  • the present invention is characterized in that the apparatus main body is installed and fixed on a console of a ship, and the buzzer is used as a horn.
  • the configuration is suitable for an image display device for ships.
  • the sound from the buzzer built in the device main body is efficiently diverted and the sound is emitted from the vicinity of the image display surface of the device.
  • the design is maintained while considering protection against intrusion and protection against water intrusion, and is particularly suitable for an image display device for ships.
  • the sound conduit does not cause unnecessary vibration such as resonance with the sound from the buzzer and is excellent in waterproofness, and vibration other than the sound from the buzzer is directly applied. It is difficult to communicate.
  • FIG. 1 is a perspective view illustrating an image display device according to an embodiment of the invention. It is a front view which shows the image display apparatus of the said embodiment. It is a rear view which shows the image display apparatus of the said embodiment. It is a top view which shows the image display apparatus of the said embodiment. It is a right view which shows the image display apparatus of the said embodiment. It is a bottom view which shows the image display apparatus of the said embodiment. It is a disassembled perspective view which removes a cover member and shows the image display apparatus of the said embodiment. It is principal part sectional drawing which shows the arrangement configuration of the sound conduit
  • FIG. 1 is a perspective view illustrating an image display device 1 according to an embodiment to which the invention is applied.
  • the image display device 1 according to the present embodiment has a rectangular box shape on the front surface, a housing 9 in which an electronic circuit and software are built, and a frame body 2 arranged on the front side of the housing 9. And the image display module 3 located inside the frame 2, the transparent panel 4 protecting the display screen 31 of the image display module 3, and two long plate-like lid members 50 (51, 52). (FIG. 1).
  • a support portion 20 having a predetermined shape is formed at the outer peripheral position of the transparent panel 4 in the vertical direction, and lid members 51 and 52 are fitted and attached to the support portion 20 (FIG. 1).
  • the lid member 52 and the image display surface of the apparatus main body are arranged with no difference in height at the boundary, and from a rectangular opening 751 formed by the notch of the lid member 52 and the apparatus main body. It is configured to emit a horn sound ( Figure 1).
  • the image display device 1 is a liquid crystal image display device.
  • Known techniques are used for the electronic circuits and software related to the liquid crystal image display device, and the description thereof is omitted because they do not constitute the technical features of the present invention.
  • the transparent panel 4 is a glass plate.
  • a touch panel is laminated on the transparent panel 4.
  • a known touch panel can be used as the transparent panel 4.
  • FIG. 2 is a front view of the image display device 1 of the present embodiment.
  • FIG. 3 is a rear view of the image display device 1.
  • FIG. 4 is a plan view of the image display device 1.
  • FIG. 5 is a right side view of the image display device 1.
  • FIG. 6 is a bottom view of the image display device 1.
  • FIG. 7 is an exploded perspective view showing the image display device 1 of the present embodiment with the lid members 51 and 52 removed.
  • the frame body 2 of the image display device 1 has a rectangular shape, is formed in a bowl shape on the outer periphery of the transparent panel 4, and is provided integrally with the housing 9 in order to support and fix the housing 9 (see FIG. 1 to 7).
  • Through holes 22 are formed at predetermined intervals in the support portion 20 of the frame body 2.
  • the size and the number of arrangement of the through holes 22 are arbitrary. In the example shown in FIG. 3, five through holes 22 are formed in each of the upper support portion 20 and the lower support portion 20 of the image display device 1.
  • the size of the through-holes 22 is increased to increase the number of arrangements, thereby facilitating stable and reliable fixing of the device body to the console 10.
  • the frame body 2 is integrally formed with a support portion 20 and a groove portion 21.
  • the support portion 20 is provided with a holding metal fitting 26 that holds the protruding pieces 501 and 502 of the lid member 50 at predetermined intervals, and the lid member 50 and the holding metal fitting 26 are detachably fitted to each other. (FIGS. 1 and 7).
  • the support portion 20 of the frame 2 is used for reinforcement.
  • Metal fittings 27 are formed at predetermined intervals.
  • the metal fitting 27 has a quadrangular shape, and is fitted and fixed so as to fit in a portion where the groove portion 21 is formed between the inner surface of the frame body 2 and the outer surface of the transparent panel 4.
  • a through-hole 22 is formed in the center of the square-shaped metal fitting 27, and the stepped portion on the outside thereof is a circular recess 23 large enough to receive the head of a fixing metal fitting such as a screw or bolt (see FIG. 1 to 7).
  • the frame body 2 is disposed at the outer peripheral position of the transparent panel 4, and the main body of the image display device 1 is supported by the support portion 20 of the frame body 2.
  • the material of the frame 2 is a hard metal such as aluminum, iron or stainless steel, or a reinforced plastic such as epoxy resin, polyamide resin or phenol resin, or fiber reinforced plastic (Fiber Reinforced Plastics, FRP), or a composite material thereof. Is mentioned.
  • the lid member 50 covers and protects the fixing bracket attached to the support portion 20, and the material thereof is a hard metal such as aluminum, iron, stainless steel, or an epoxy resin, a polyamide resin, or a phenol resin. Reinforced plastics such as, fiber reinforced plastics (Fiber Reinforced Plastics, FRP), or composite materials thereof.
  • the lid member 50 is not required to have a strength up to that required for the frame body 2, and may be a generally used lightweight plastic material.
  • FIG. 8 is a cross-sectional view of the main part showing the arrangement configuration of the sound conduit 7 according to the image display device 1 of the present embodiment from the side surface side.
  • FIG. 9 is an enlarged view of a portion surrounded by a dotted line denoted by reference numeral 1001, and is a cross-sectional view of the main part showing the arrangement configuration of the window 701 according to the image display device 1 of the present embodiment from the right side. .
  • a buzzer support member 81 that supports the buzzer 8 on the terminal side is attached and fixed to the structural member on the back side of the image display module 3 with screws.
  • the buzzer 8 a commercially available product can be applied.
  • the outer periphery of the buzzer support member 81 and the inlet 71 of the sound conduit 7 are detachably fitted and connected, and the buzzer 8 and the sound conduit 7 are not in contact with each other (FIG. 8). ).
  • the outer peripheral case of the buzzer 8 is in a free vibration state, and the sound conduit 7 transmits the sound from the buzzer 8 while not transmitting vibrations other than the sound from the buzzer 8.
  • a window portion 701 is formed in the frame 2 on the front side of the apparatus main body, and the window portion 701 has a slit shape and is covered with a waterproof film 901 for adjusting sound pressure (see FIG. 8, FIG. 9).
  • the waterproof film 901 is made of polyethylene terephthalate.
  • the waterproof film 901 is pressed and fixed to the inside of the frame body 2 by a frame-shaped window cushion tape 902 (FIGS. 8 and 9).
  • FIG. 10 is a plan view showing the window cushion tape 902.
  • Reference numeral 912 denotes a cut-out window portion. That is, although the waterproof film 901 is not bonded with an adhesive or the like, the waterproof film 901 can be easily replaced because it is pressed and fixed by the restoring force of the window cushion tape 902.
  • the window portion 701 since the window portion 701 has a slit shape, it is inconspicuous and excellent in design, and the window portion 701 is covered with a waterproof film 901 for adjusting sound pressure. In addition to the dustproof and waterproof structure, the sound pressure can be easily adjusted.
  • the thickness of the waterproof film 901 is appropriately adjusted within a range of, for example, 25 to 100 ⁇ m, 50 to 200 ⁇ m, and 125 to 500 ⁇ m so that the sound pressure approaches a specified value.
  • the material of the sound conduit 7 is preferably a material that does not cause unnecessary vibration due to resonance with the sound from the buzzer 8, and is preferably waterproof.
  • the sound conduit 7 is made of an elastomer, and is detachably fitted and connected at a predetermined location (FIGS. 8 and 9).
  • FIG. 11 is a front view showing the sound conduit 7 according to the image display apparatus of the present embodiment.
  • FIG. 12 is a plan view of the sound conduit 7.
  • FIG. 13 is a bottom view of the sound conduit 7.
  • FIG. 14 is a cross-sectional view showing the sound conduit 7 from the right side.
  • FIG. 15 is a left side view of the sound conduit 7.
  • FIG. 16 is a rear view of the sound conduit 7.
  • the inlet 71 has a circular shape, and a ring 711 for fitting with the outer periphery of the buzzer support member 81 is integrally formed (FIGS. 8, 11, 12, 13, 14, and 14). 15).
  • the outlet 72 has a rectangular shape, the upper side and the lower piece are connected by a columnar member 7221 in order to suppress deformation of the outlet 72, and in order to suppress positional deviation of the outlet 72,
  • the upper collar portion 721 and the lower collar portion 722 are integrally formed in a stepwise manner (FIGS. 8, 11, 12, 13, 14, and 15).
  • the flanges 721 and 722 are configured to be fitted and positioned with recesses formed around the window 701 of the apparatus main body (FIG. 8).
  • the conduit 73 of the sound conduit 7 is bent at an angle K1 of 70 degrees or more and 110 degrees or less (FIGS. 14 and 15). This is an angle range suitable for the sound conduit 7 to bypass the image display module 3. In the example shown in FIGS. 14 and 15, the angle K1 at which the pipe 73 is bent is approximately 90 degrees.
  • the dimensional ratio between the inner diameter of the inlet 71 and the long side of the outlet 72 is 10: 9 to 10:11, and the dimensional ratio between the inner diameter of the inlet 71 and the short side of the outlet 72 is 10: 1 to 10: 2 (FIGS. 11 and 12).
  • the long side of the outlet 72 is a length including the columnar member 7221.
  • the image display device for ships has a standard of horn sound, and the sound pressure at a position 1 m away from the front surface of the image display device is measured, and the sound pressure is required to be stable at 75 to 85 dB.
  • a buzzer having an oscillation frequency of 3.5 kHz and a sound pressure of 90 dB has a standard outer diameter of 31.5 mm.
  • FIG. 17 is a graph showing the sound pressure characteristics of an image display device without the sound conduit 7 according to the present invention as a comparative example.
  • FIG. 18 is a graph showing the sound pressure characteristics of the image display device 1 according to the embodiment of the present invention as an example. In any case, the temporal variation of the sound pressure characteristic of the image display device was measured with a sound collecting microphone in an anechoic chamber where the temperature was set to 25 degrees.
  • the fluctuation width of the front sound pressure is less than about 0.5 dB, and the sound pressure is maintained in a stable state over time.
  • the image display apparatus 1 When the image display apparatus 1 is swung to the right by 15 degrees, the sound pressure increases as the distance between the sound collecting microphone and the opening 751 of the apparatus becomes shorter, and the fluctuation range of the sound pressure is less than about 0.5 dB. Yes, a stable sound pressure is maintained over time.
  • the image display device 1 is swung to the left by 15 degrees, the sound pressure is reduced by the distance between the sound collection microphone and the opening 751 of the device, and the fluctuation range of the sound pressure is less than about 0.5 dB. Yes, a stable sound pressure is maintained over time.
  • the rubber seal 206 is laid on the frame portion of the window portion opened on the front side of the console housing 11, and then the image display device 1 is mounted. Set it. Then, a fixing screw (fixing bracket) 208 with a washer is passed through the through hole 22 of the image display device 1 and attached to a screw hole formed on the front side of the housing 11 to be fastened and fixed. Next, the lid member 50 (51, 52) is attached to the support portion 20 (FIG. 20). Since the screw is fixed on the front side of the console 10, the fixing screw 208 can be easily attached.
  • the fixing screw 208 may be a fixing bolt.
  • the fixing screw 208 is covered with the lid member 50 (51, 52), and the lid member 50 (51, 52) and the image display surface of the apparatus main body are connected. It has a high design with no difference in height at the border. Further, the buzzer sound from the window portion 701 is emitted from a rectangular opening 751 formed by the notch portion of the lid member 52 and the apparatus main body that correspond to the window portion 701 on a one-to-one basis. Therefore, the design is high without making the presence of the buzzer noticeable (FIG. 19).
  • the rectangular opening 751 has been described as having a height shifted from the window 701 at a lower position.
  • the present invention is not limited thereto.
  • a rectangular opening 751 may be disposed at the same height as the window 701. As a result, it is easy to obtain a larger sound pressure.
  • the present invention can be modified as appropriate without departing from the spirit of the present invention.
  • 1 image display device of the present invention 2 frames, 20 support part, 21 groove, 22 through hole, 208 Fixing brackets such as screws and bolts, 3 Image display module, 31 Display screen of the image display module, 4 Transparent panel, 50, 51, 52 Lid member, 7 Sound conduit, 701 Window, 711 ring, 751 opening, 8 Buzzer, 81 buzzer support member, 9 Image display device housing, 901 waterproof film, 902 Cushion tape for windows, 10 console, 11 Console case

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

[Problem] To provide an image display device configured to maintain design characteristics by causing sound from a buzzer built in a device body to efficiently make a detour and emitting the sound to the outside from the vicinity of an image display surface of the device while consideration is given to protection against the entry of solid matter such as dust and protection against the entry of water. [Solution] An image display device (1) is provided with an image display module (3), a buzzer (8) disposed on the back surface side of the image display module (3), and a sound conduit (7) for conducting sound emitted by the buzzer (8) with the exit of the sound being narrowed while causing the sound to make a detour, and the sound from the buzzer (8) is emitted from a window part (701) formed on the front surface side of a device body via the sound conduit (7). The window part (701) has a slit shape and is covered with a waterproof film (901) for adjusting sound pressure.

Description

画像表示装置Image display device
　本発明は、画像表示装置に関し、特に船舶用の画像表示装置に関する。 The present invention relates to an image display device, and more particularly to an image display device for ships.
　画像表示装置は、液晶、有機エレクトロルミネッセンス、プラズマディスプレイ等の画像形成技術によって、低消費電力で高精度の画像品位が得られることに加え、画面がフラットで薄型化が図れるという特徴があり、広範囲の分野に普及している。 The image display device is characterized by low power consumption and high-accuracy image quality through image forming technologies such as liquid crystal, organic electroluminescence, and plasma display, as well as a flat and thin screen. It is popular in the field.
　近年、液晶画像表示装置は、携帯情報端末、カーナビゲーション、パーソナルコンピュータ、テレビジョン受像機のみならず、船舶や航空機等のコンソールに搭載されており、その重要度がますます高くなっている。ここで、船舶や航空機等のコンソールとは、操作盤、制御卓、キャビネット等とも呼称され、例えば、船舶や航空機等の航行の際に使用するレーダ情報、位置情報等を表示するものである。前記コンソールには、マルチファンクションディスプレイ対応となっているものもあり、例えば、チャートレーダー、電子海図表示装置(Electronic Chart Display and Information System ; ECDIS)、コニングディスプレイ（集中監視表示装置）、アラートマネジメントシステム、その他操作画面表示等の機能が備わっている。 In recent years, liquid crystal image display devices are mounted not only on personal digital assistants, car navigation systems, personal computers, and television receivers, but also on consoles such as ships and aircraft, and their importance is increasing. Here, the console of a ship or an aircraft is also referred to as an operation panel, a control console, a cabinet, or the like, and displays radar information, position information, and the like used when navigating a ship or an aircraft, for example. Some of the consoles are compatible with multi-function displays. For example, chart radar, electronic chart display (Electronic Chart Display and Information System; ECDIS), conning display (centralized monitoring display), alert management system In addition, other functions such as operation screen display are provided.
　このような船舶、航空機等のコンソールに搭載される液晶画像表示装置は、防塵構造や防水構造となっていることが望ましい。当該液晶画像表示装置は、図１９に示すように表示画面が斜め上向きの状態で設置されることが多く、オフィスや家庭で使用される液晶画像表示装置のように表示画面をほぼ垂直の状態で使用される場合と比較して、装置の外表面の部品間の隙間から埃や水が内部に入り込む危険性が高いためである。 It is desirable that the liquid crystal image display device mounted on the console of such a ship or aircraft has a dustproof structure or a waterproof structure. The liquid crystal image display device is often installed with the display screen obliquely upward as shown in FIG. 19, and the display screen is almost vertical like the liquid crystal image display device used in offices and homes. This is because there is a higher risk of dust and water getting into the interior from the gaps between the parts on the outer surface of the device as compared to the case where it is used.
　国際規格IEC/EN60529またはJIS C0920には、塵など固形物の侵入に対する保護等級と、水の侵入に対する保護等級が、ＩＰ(International Protection)コードとして定められている。
　例えば、ＩＰ３１とは、直径２．５ｍｍ以上の大きさの外来固形物に対して保護されており、かつ、製品上部から垂直に落下する水に対して保護されていることを示している。
　例えば、ＩＰ６５とは、耐塵試験用粉塵が入らないように保護されていることを示し、かつ、毎分12.5リットルの噴流水で製品に対するあらゆる方向からの噴流水に対し保護されていることを示している。 In the international standard IEC / EN60529 or JIS C0920, a protection class against intrusion of solid matter such as dust and a protection class against invasion of water are defined as IP (International Protection) codes.
For example, IP31 indicates that it is protected against foreign solids having a diameter of 2.5 mm or more and is protected against water falling vertically from the top of the product.
For example, IP65 indicates that the dust for dust resistance test is protected from entering, and that the product is protected against jet water from all directions with respect to the product with 12.5 liters of jet water per minute. ing.
　また、船舶用の画像表示装置では、警笛音の規格があり、画像表示装置の前面から１ｍ離れた位置での音圧を測定し、前記音圧が７５～８５ｄＢで安定していることが要求される。警笛、警告音、アラームなどの音は、一般に、装置本体に内蔵されたブザーから発せられる。前記ブザーからの音は、装置本体の筐体や金属プレートなどの構造物に反射して互いに干渉することで音の強弱が不安定な状態となる。これに対して、音の反射を避けるために、装置本体に内蔵されたブザーからの音を効率よく装置の外に出すようにするための工夫が従来からなされている。 In addition, the image display device for ships has a standard of horn sound, and the sound pressure at a position 1 m away from the front surface of the image display device is measured, and the sound pressure is required to be stable at 75 to 85 dB. Is done. Sounds such as horns, warning sounds, and alarms are generally emitted from a buzzer built in the apparatus body. The sound from the buzzer is reflected by structures such as a casing of the apparatus main body and a metal plate and interferes with each other, so that the intensity of the sound becomes unstable. On the other hand, in order to avoid the reflection of sound, there has been conventionally devised to efficiently output the sound from the buzzer built in the apparatus main body to the outside of the apparatus.
　特許文献１には、電動スクーターにおいて、アクセルボックスに内蔵されたブザーから下方向へ発せられた音を当該アクセルボックスの下側フレームに形成された穴から外に出す構成が記載されており、特に、前記ブザーが下向きで配されて、音導管の入口が前記ブザーと連結され、当該音導管が下向きに延びてその出口が前記下側フレームに形成された穴と連結されている態様、が記載されている。 Patent Document 1 describes a configuration in an electric scooter that emits a sound emitted downward from a buzzer built in an accelerator box through a hole formed in the lower frame of the accelerator box, and in particular. The buzzer is disposed downward, the sound conduit inlet is connected to the buzzer, the sound conduit extends downward, and the outlet is connected to a hole formed in the lower frame. Has been.
　特許文献２には、消火システムにおいて、操作盤に内蔵されたブザーから上方向へ発せられた音を当該操作盤の中蓋の穴から外に出す構成が記載されており、特に、前記ブザーが上向きで配されて、振動筒の入口が前記ブザーと連結され、当該振動筒が上向きに延びてその出口が前記中蓋の穴と連結されており、尚且つ、防水性フィルムシートが前記中蓋の穴を覆っている態様、が記載されている。 Patent Document 2 describes a configuration in which a sound emitted upward from a buzzer built in an operation panel is emitted from a hole in the inner lid of the operation panel in the fire extinguishing system. Arranged upward, the inlet of the vibration cylinder is connected to the buzzer, the vibration cylinder extends upward and the outlet is connected to the hole of the inner lid, and the waterproof film sheet is connected to the inner lid A mode of covering the hole of is described.
特許第３５１８１３５号Japanese Patent No. 3518135 特許第２８９６５５７号Japanese Patent No. 2896557
　しかしながら、特許文献１ではブザーからの下向きの音をその進行方向を変更せずに下フレームに形成された穴から外に発している。また、特許文献２ではブザーからの上向きの音をその進行方向を変更せずに上フレームに形成された穴から外に発している。
　つまり、これら従来技術では、画像表示機とは異なりデザインはさほど重要ではないため、ブザーだけのために必要以上にスペースを割くことになってしまっている。一方、船舶用の画像表示装置では、前記の警告音の規格を満たそうとした場合、例えば、発振周波数が３．５ｋＨｚ、音圧が９０ｄＢのブザーは、標準的な外径寸法が３１．５ｍｍとなるが、仮に、これを画像表示装置の前面付近に内蔵させると、フレーム（枠体）の幅を広げる等、このブザーだけのために大きなスペースを割くことになり、画像表示機で重視されるデザイン性が損なわれる懸念がある。 However, in patent document 1, the downward sound from a buzzer is emitted outside from the hole formed in the lower frame, without changing the advancing direction. Moreover, in patent document 2, the upward sound from a buzzer is emitted outside from the hole formed in the upper frame, without changing the advancing direction.
That is, in these prior arts, unlike the image display device, the design is not so important, and therefore, more space is required than necessary only for the buzzer. On the other hand, in an image display device for ships, when trying to satisfy the warning sound standard, for example, a buzzer with an oscillation frequency of 3.5 kHz and a sound pressure of 90 dB has a standard outer diameter of 31.5 mm. However, if it is built in the vicinity of the front of the image display device, it will take up a large space just for this buzzer, such as widening the width of the frame (frame), which is important in image display machines. There is a concern that the design will be impaired.
　そこで、本発明の目的は、塵など固形物の侵入に対する保護と、水の侵入に対する保護を考慮しつつ、装置本体に内蔵されたブザーからの音を効率よく迂回させて装置の画像表示面付近から外に音を発することでデザイン性を維持する構成の画像表示装置を提供することにある。 Therefore, the object of the present invention is to efficiently bypass the sound from the buzzer built in the main body of the device while considering the protection against the intrusion of solid matter such as dust and the protection against the intrusion of water, and near the image display surface of the device Another object of the present invention is to provide an image display device having a configuration that maintains design by emitting sound to the outside.
　本発明の画像表示装置は、画像表示モジュールと、前記画像表示モジュールの背面側に配されたブザーと、前記ブザーが発した音を迂回させつつ当該音の出口を狭くして伝える音導管を備え、前記ブザーからの音が前記音導管を介して装置本体の正面側に形成された窓部から発せられることを特徴とする。 An image display device according to the present invention includes an image display module, a buzzer disposed on the back side of the image display module, and a sound conduit that narrows and transmits the sound outlet while bypassing the sound emitted by the buzzer. The sound from the buzzer is emitted from a window portion formed on the front side of the apparatus main body through the sound conduit.
　本発明によれば、内蔵された前記ブザーからの音を効率よく迂回させて前記装置本体の正面側に形成された窓部から外に音を発する構成であるから、塵など固形物の侵入に対する保護と、水の侵入に対する保護を考慮しつつ、デザイン性を維持する構成となる。 According to the present invention, since the sound from the built-in buzzer is efficiently diverted and the sound is emitted from the window portion formed on the front side of the apparatus main body, it is against the intrusion of solid matter such as dust. The design is maintained while considering protection and protection against water intrusion.
　塵など固形物の侵入に対する保護等級と、水の侵入に対する保護等級を、ＩＰ６５にて示される防塵かつ防水構造とするためには、前記窓部を防塵かつ防水構造とする方法、前記音導管の出口を防塵かつ防水構造とする方法、前記ブザーを防塵かつ防水構造とする方法、が挙げられる。
　前記ブザーからの音は、前記音導管を通過し、前記窓部を通過することで装置の外部に音が発せられる。このことから音導回路の出口となる前記窓部で音圧調整を行うことが好ましい。 In order to achieve the dustproof and waterproof structure shown in IP65 for the protection grade against the intrusion of solid substances such as dust and the protection grade against water intrusion, Examples thereof include a method of making the outlet dustproof and waterproof, and a method of making the buzzer dustproof and waterproof.
The sound from the buzzer passes through the sound conduit and passes through the window, so that the sound is emitted outside the apparatus. Therefore, it is preferable to adjust the sound pressure at the window portion serving as the outlet of the sound guide circuit.
　本発明は、前記窓部はスリット状であり、音圧調整用の防水フィルムで覆われていることを特徴とする。 The present invention is characterized in that the window has a slit shape and is covered with a waterproof film for adjusting sound pressure.
　本発明によれば、前記窓部がスリット状となっているので、目立たずデザイン性に優れており、また、前記窓部が音圧調整用の防水フィルムで覆われているので、防塵かつ防水構造に加えて、音圧調整が容易となる。 According to the present invention, since the window portion has a slit shape, it is inconspicuous and excellent in design, and since the window portion is covered with a waterproof film for adjusting sound pressure, it is dustproof and waterproof. In addition to the structure, the sound pressure can be easily adjusted.
　前記防水フィルムの材質としては、ポリエチレン、ポリエチレンテレフタレート、ポリオレフィン、ポリアミド、ポリカーボネート、ポリウレタン、ポリプロピレン、ポリエステル、キチン、キトサン、が挙げられる。 Examples of the material of the waterproof film include polyethylene, polyethylene terephthalate, polyolefin, polyamide, polycarbonate, polyurethane, polypropylene, polyester, chitin, and chitosan.
　前記防水フィルムの厚みは、例えば、２５～１００μｍ、５０～２００μｍ、１２５～５００μｍ、の範囲内で音圧を規定値に近づける方向で適宜調整される。 The thickness of the waterproof film is appropriately adjusted in a direction in which the sound pressure approaches a specified value within a range of 25 to 100 μm, 50 to 200 μm, 125 to 500 μm, for example.
　前記音導管の材質としては、前記ブザーからの音で共鳴するなどして不要な振動を起こさない材質が好ましく、尚且つ、防水性を有することが好ましい。よって、前記音導管の材質としては、エラストマー、防水コーティングされた木材、防水コーティングされた紙、が挙げられる。 The material of the sound conduit is preferably a material that does not cause unnecessary vibrations by resonating with sound from the buzzer, and is preferably waterproof. Accordingly, examples of the material of the sound conduit include elastomer, waterproof coated wood, and waterproof coated paper.
　前記エラストマーとは、ゴム状の弾力性を有する工業用材料の総称である。前記エラストマーとしては、天然ゴム、イソプレンゴム、クロロプレンゴム、シリコーンゴム、フッ素ゴム、ウレタンゴム、スチレンゴム、ブタジェンゴム、ブチルゴム、ニトリルゴム、プロピレンゴム、アクリルゴム、その他既知のゴムが挙げられる。 The elastomer is a generic name for industrial materials having rubber-like elasticity. Examples of the elastomer include natural rubber, isoprene rubber, chloroprene rubber, silicone rubber, fluorine rubber, urethane rubber, styrene rubber, butadiene rubber, butyl rubber, nitrile rubber, propylene rubber, acrylic rubber, and other known rubbers.
　前記音導管が、前記ブザーからの音を伝える際に、不要な振動を装置本体のフレームに伝えない構造とすることが好ましい。つまり、前記音導管は、ねじやボルト等の固定金具で固定されてはいない構造が好ましい。 It is preferable that the sound conduit does not transmit unnecessary vibration to the frame of the apparatus main body when transmitting the sound from the buzzer. That is, it is preferable that the sound conduit is not fixed with a fixing metal fitting such as a screw or a bolt.
　本発明は、前記音導管はエラストマーからなり、所定個所で着脱自在に嵌め合わさって連結されていることを特徴とする。 The present invention is characterized in that the sound conduit is made of an elastomer and is detachably fitted and connected at a predetermined location.
　本発明によれば、前記音導管が防水性に優れたものとなり、尚且つ、不要な振動を装置本体のフレームに伝えない構造となる。すなわち、ボルト、ネジ、はんだ付け、接着剤による接着、溶着などの固定手段で固定される構造とは異なり、エラストマーからなる前記音導管による着脱自在の嵌め合い構造を採用することで前記ブザーからの音以外の振動が直接伝達し難い構成となる。 According to the present invention, the sound conduit is excellent in waterproofness and does not transmit unnecessary vibration to the frame of the apparatus main body. That is, unlike the structure fixed by fixing means such as bolts, screws, soldering, adhesive bonding, welding, etc., by adopting a detachable fitting structure by the sound conduit made of elastomer, The configuration is such that vibrations other than sound are not directly transmitted.
　前記ブザーは、市販品を適用することができる。例えば、前記ブザーは、圧電振動子の屈曲振動の原理に基づいてその外径が円形状となっており、高音圧の音を発することができる。例えば、前記ブザーは、ヘルムホルツの共鳴の原理に基づいて、外周ケースが共鳴し、高音圧の音を発することができる。その一方で、不要な振動を伝えないように、前記ブザーの外周ケースを自由振動状態とすることが好ましい。 The buzzer can be a commercial product. For example, the buzzer has a circular outer diameter based on the principle of bending vibration of a piezoelectric vibrator, and can emit a high sound pressure sound. For example, the buzzer can emit a high sound pressure sound by resonating the outer case based on the Helmholtz resonance principle. On the other hand, it is preferable that the outer case of the buzzer be in a free vibration state so as not to transmit unnecessary vibration.
　本発明は、前記ブザーを端子側で支持するブザー支持部材を備え、前記ブザー支持部材の外周と前記音導管の入口とが着脱自在に嵌め合わさって連結されており、前記ブザーと前記音導管が非接触となっていることを特徴とする。 The present invention includes a buzzer support member that supports the buzzer on the terminal side, and an outer periphery of the buzzer support member and an inlet of the sound conduit are detachably fitted to each other, and the buzzer and the sound conduit are connected to each other. It is characterized by being non-contact.
　本発明によれば、前記ブザーの外周ケースが自由振動状態となり、前記音導管が、前記ブザーからの音を伝えつつ、前記ブザーからの音以外の振動を伝えない構成となる。 According to the present invention, the outer peripheral case of the buzzer is in a free vibration state, and the sound conduit transmits the sound from the buzzer while not transmitting vibrations other than the sound from the buzzer.
　前記音導管は、入口が丸い形状であることが好ましい。これによれば、前記ブザーとして市販品を適用することができるからである。 It is preferable that the sound conduit has a round shape at the entrance. This is because a commercially available product can be applied as the buzzer.
　前記音導管は、出口が細長い形状であることが好ましい。これによれば、前記窓部をスリット状とすることができるからである。一般に、画像表示機とその画像表示面は正面視で長方形状であり、前記窓部がスリット形状であることで、視覚上、目立たなくさせることが容易である。 It is preferable that the sound conduit has an elongated shape at the outlet. This is because the window portion can be slit-shaped. Generally, the image display device and its image display surface are rectangular in front view, and the window portion is slit-shaped, so that it is easy to make it visually inconspicuous.
　前記音導管は、管路が７０度以上１１０度以下の角度で折れ曲がっていることが好ましい。これによれば、前記音導管が前記画像表示モジュールを迂回させるのに好適な角度範囲となる。つまり、前記管路が折れ曲がる角度が７０度未満の場合は、前記音導管がスペースをとるためデザイン上好ましくない。また、前記管路が折れ曲がる角度が１１０度より大きい場合は、前記音導管による音の減衰が大きくなり設計の自由度が制限される。前記管路が折れ曲がる角度は、約９０度が最も好ましい。 The sound conduit is preferably bent at an angle of 70 degrees to 110 degrees. According to this, an angle range suitable for the sound conduit to bypass the image display module is obtained. That is, when the angle at which the pipe is bent is less than 70 degrees, the sound conduit takes a space, which is not preferable in terms of design. When the angle at which the pipe is bent is greater than 110 degrees, sound attenuation by the sound conduit is increased, and the degree of freedom in design is limited. The angle at which the pipe is bent is most preferably about 90 degrees.
　本発明は、前記音導管の入口は丸い形状であり、前記音導管の出口は細長い形状であり、前記音導管の管路が７０度以上１１０度以下の角度で折れ曲がっていることを特徴とする。 The present invention is characterized in that the inlet of the sound conduit has a round shape, the outlet of the sound conduit has an elongated shape, and the conduit of the sound conduit is bent at an angle of 70 degrees to 110 degrees. .
　本発明によれば、前記音導管が、前記ブザーが発した音を迂回させつつ当該音の出口を狭くして伝えるのに好適な形状となり、かつ、好適な角度範囲内となる。 According to the present invention, the sound conduit has a shape suitable for narrowing and transmitting the sound outlet while bypassing the sound emitted by the buzzer, and within a suitable angle range.
　本発明は、前記入口の内径と前記出口の長辺との寸法比が１０：９～１０：１１であるとともに、前記入口の内径と前記出口の短辺との寸法比が１０：１～１０：２であることを特徴とする。 In the present invention, the dimensional ratio between the inner diameter of the inlet and the long side of the outlet is 10: 9 to 10:11, and the dimensional ratio between the inner diameter of the inlet and the short side of the outlet is 10: 1 to 10. : 2
　本発明によれば、前記音導管が、前記ブザーが発した音を迂回させつつ当該音の出口を狭くして伝えるのに好適な範囲内となる。つまり、前記入口の内径と前記出口の長辺との寸法比が１０：９～１０：１１であることで、前記ブザーの外径と前記音導管の入口の内径とを近似させて前記ブザーが発した音を効率的に伝えることとなる。また、前記入口の内径と前記出口の短辺との寸法比が１０：１～１０：２であることで、前記ブザーの外径に対して前記音導管の出口の短辺を１／８以下として、前記ブザーからの音の波長よりも十分小さくし前記音導管内の音の反射を極力抑えて、尚且つ、前記音導管の出口の短辺を１／１０以上として、前記ブザーからの音が外に発せられるようになる。 According to the present invention, the sound conduit is in a range suitable for narrowing and transmitting the sound outlet while bypassing the sound emitted by the buzzer. That is, the dimensional ratio between the inner diameter of the inlet and the long side of the outlet is 10: 9 to 10:11, so that the outer diameter of the buzzer and the inner diameter of the inlet of the sound conduit are approximated, and the buzzer It will effectively convey the sound that is emitted. The dimensional ratio between the inner diameter of the inlet and the short side of the outlet is 10: 1 to 10: 2, so that the short side of the outlet of the sound conduit is less than 1/8 of the outer diameter of the buzzer. The sound from the buzzer is made sufficiently smaller than the wavelength of the sound from the buzzer to suppress reflection of the sound in the sound conduit as much as possible, and the short side of the outlet of the sound conduit is 1/10 or more. Will be emitted outside.
　前記音導管は、前記出口の変形を抑えるために、上辺と下片とが柱状部材で接続されていることが好ましい。また、前記音導管は、前記出口の位置ずれを抑えるために、鍔部が形成されていることが好ましい。これによって、前記鍔部が前記装置本体の窓部周辺に形成された窪み部と嵌合して位置決めされる構成となる。 In the sound conduit, it is preferable that an upper side and a lower piece are connected by a columnar member in order to suppress deformation of the outlet. Moreover, it is preferable that the sound conduit is formed with a flange portion in order to suppress the positional deviation of the outlet. Accordingly, the collar portion is configured to be fitted and positioned with a recess portion formed around the window portion of the apparatus main body.
　本発明は、前記画像表示モジュールの外周に支持部があり、ねじやボルト等の固定金具を前記支持部に形成された貫通穴に挿通させて前記装置本体をコンソールに固定し、蓋部材を取り付ける構成とされ、前記蓋部材には前記窓部と一対一で対応する切り欠き部が形成されており、前記蓋部材によって前記固定金具が覆われるとともに前記蓋部材と装置本体の画像表示面とが境目にて高低差なく配され、かつ、前記窓部からの音が前記蓋部材の切り欠き部と前記装置本体とで形成された長方形状の開口部から発せられることを特徴とする。 According to the present invention, there is a support portion on the outer periphery of the image display module, and a fixing bracket such as a screw or a bolt is inserted into a through hole formed in the support portion to fix the apparatus main body to the console, and a cover member is attached. The lid member is formed with a notch portion corresponding to the window portion on a one-to-one basis, the fixing member is covered by the lid member, and the lid member and an image display surface of the apparatus main body are provided. It is arranged without difference in height at the boundary, and the sound from the window portion is emitted from a rectangular opening formed by the notch portion of the lid member and the apparatus main body.
　本発明によれば、装置本体を前記コンソールの正面側から据え、ねじやボルト等の固定金具を前記貫通穴に挿通させて前記コンソールに固定する構成であるから、画像表示装置を据え付けしやすい。そして、装置本体に前記蓋部材を取り付けると、前記蓋部材によって前記固定金具が覆われるとともに前記蓋部材と装置本体の画像表示面とが境目にて高低差なく配されることとなり、デザイン性が高い構成となる。さらには、前記窓部からのブザー音が前記蓋部材の切り欠き部と装置本体とで形成された長方形状の開口部から発せられる構成であるから、ブザーの存在を意識させないデザイン性が高い構成となる。 According to the present invention, since the apparatus main body is installed from the front side of the console and a fixing bracket such as a screw or a bolt is inserted into the through hole and fixed to the console, the image display apparatus can be easily installed. Then, when the lid member is attached to the apparatus main body, the fixing member is covered by the lid member, and the lid member and the image display surface of the apparatus main body are arranged without any difference in height between the lid member and the design. High configuration. Further, since the buzzer sound from the window portion is emitted from a rectangular opening formed by the notch portion of the lid member and the apparatus main body, the design has a high design that does not make the presence of the buzzer. It becomes.
　前記窓部と前記長方形状の開口部とは一対一で対応している。例えば、前記長方形状の開口部と前記窓部とは左右長さが等しく設定される。例えば、前記長方形状の開口部は前記窓部よりも上下幅が狭く設定される。好適な例としては、前記長方形状の開口部と前記窓部とは左右長さが等しく設定され、かつ、前記長方形状の開口部は前記窓部よりも上下幅が狭く設定される。これにより、前記ブザーの外径に対して前記長方形状の開口部の短辺を１／８よりも小さくして、前記ブザーからの音の波長よりも十分小さくし前記装置本体内における音の反射を極力抑えて、尚且つ、前記長方形状の開口部の短辺を１／１０以上として、前記ブザーからの音が外に発せられるようになる。 The window and the rectangular opening have a one-to-one correspondence. For example, the left and right lengths of the rectangular opening and the window are set equal. For example, the rectangular opening is set to have a narrower vertical width than the window. As a preferred example, the rectangular opening and the window are set to have the same left and right length, and the rectangular opening is set to have a narrower vertical width than the window. Thus, the short side of the rectangular opening with respect to the outer diameter of the buzzer is made smaller than 1/8, which is sufficiently smaller than the wavelength of the sound from the buzzer, and the reflection of sound within the apparatus main body. In addition, the short side of the rectangular opening is set to 1/10 or more, and the sound from the buzzer is emitted outside.
　例えば、前記長方形状の開口部は前記窓部よりもその高さが下の位置にずらして配される。これによって、塵など固形物の侵入に対する保護と、水の侵入に対する保護を考慮しつつ、デザイン性を維持する構成となる。 For example, the rectangular opening is arranged with its height shifted to a position below the window. As a result, the design is maintained while taking into consideration the protection against intrusion of solid matter such as dust and the protection against intrusion of water.
　例えば、前記長方形状の開口部は前記窓部と同じ高さの位置に配される。これによって、より大きな音圧を得やすい構成となる。 For example, the rectangular opening is arranged at the same height as the window. As a result, it is easy to obtain a larger sound pressure.
　ここで、前記蓋部材と前記装置本体の画像表示面とが境目にて高低差なく配されるとは、視認できる程度の段差がない状態を指しており、前記蓋部材と前記装置本体の画像表示面とが滑らかに接続されていればその境目にて高低差なく配されることとなる。そして、これによって、装置正面がフラットに見えることとなる。 Here, the fact that the lid member and the image display surface of the apparatus main body are arranged with no difference in level refers to a state where there is no level difference that can be visually recognized, and the image of the lid member and the apparatus main body. If the display surface is smoothly connected, the display surface is arranged without any difference in height. As a result, the front of the apparatus looks flat.
　本発明は、前記装置本体を船舶のコンソールに据え付け固定する構成とし、前記ブザーを警笛として用いることを特徴とする。 The present invention is characterized in that the apparatus main body is installed and fixed on a console of a ship, and the buzzer is used as a horn.
　本発明によれば、船舶用の画像表示装置に好適な構成となる。 According to the present invention, the configuration is suitable for an image display device for ships.
　本発明の画像表示装置によれば、前記装置本体に内蔵された前記ブザーからの音を効率よく迂回させて装置の画像表示面付近から外に音を発する構成であるから、塵など固形物の侵入に対する保護と、水の侵入に対する保護を考慮しつつ、デザイン性を維持する構成となり、特に、船舶用の画像表示装置に好適な構成となる。 According to the image display device of the present invention, the sound from the buzzer built in the device main body is efficiently diverted and the sound is emitted from the vicinity of the image display surface of the device. The design is maintained while considering protection against intrusion and protection against water intrusion, and is particularly suitable for an image display device for ships.
　本発明によれば、前記窓部に前記防水フィルムを貼着することで、防塵かつ防水構造に加えて、音圧調整が容易となる。そして、本発明によれば、前記音導管が前記ブザーからの音で共鳴するなど不要な振動を起こさないうえ防水性にも優れた構成となり、尚且つ、前記ブザーからの音以外の振動が直接伝達し難い構成となる。 According to the present invention, sound pressure adjustment is facilitated in addition to the dustproof and waterproof structure by sticking the waterproof film to the window portion. According to the present invention, the sound conduit does not cause unnecessary vibration such as resonance with the sound from the buzzer and is excellent in waterproofness, and vibration other than the sound from the buzzer is directly applied. It is difficult to communicate.
本発明の実施形態の画像表示装置を例示する斜視図である。1 is a perspective view illustrating an image display device according to an embodiment of the invention. 上記実施形態の画像表示装置を示す正面図である。It is a front view which shows the image display apparatus of the said embodiment. 上記実施形態の画像表示装置を示す背面図である。It is a rear view which shows the image display apparatus of the said embodiment. 上記実施形態の画像表示装置を示す平面図である。It is a top view which shows the image display apparatus of the said embodiment. 上記実施形態の画像表示装置を示す右側面図である。It is a right view which shows the image display apparatus of the said embodiment. 上記実施形態の画像表示装置を示す底面図である。It is a bottom view which shows the image display apparatus of the said embodiment. 上記実施形態の画像表示装置を蓋部材を取り外して示す分解斜視図である。It is a disassembled perspective view which removes a cover member and shows the image display apparatus of the said embodiment. 上記実施形態の画像表示装置に係る音導管の配置構成を側面側から示す要部断面図である。It is principal part sectional drawing which shows the arrangement configuration of the sound conduit | pipe which concerns on the image display apparatus of the said embodiment from the side surface side. 上記実施形態の画像表示装置に係る窓部の配置構成を右側面側から示す要部断面図である。It is principal part sectional drawing which shows the arrangement configuration of the window part which concerns on the image display apparatus of the said embodiment from the right side surface side. 上記実施形態の画像表示装置に係る窓用クッションテープを示す平面図である。It is a top view which shows the cushion tape for windows which concerns on the image display apparatus of the said embodiment. 上記実施形態の画像表示装置に係る音導管を示す正面図である。It is a front view which shows the sound conduit | pipe which concerns on the image display apparatus of the said embodiment. 上記実施形態の画像表示装置に係る音導管を示す平面図である。It is a top view which shows the sound conduit | pipe which concerns on the image display apparatus of the said embodiment. 上記実施形態の画像表示装置に係る音導管を示す底面図である。It is a bottom view which shows the sound conduit | pipe which concerns on the image display apparatus of the said embodiment. 上記実施形態の画像表示装置に係る音導管を右側面側から示す断面図である。It is sectional drawing which shows the sound conduit | pipe which concerns on the image display apparatus of the said embodiment from the right side surface side. 上記実施形態の画像表示装置に係る音導管を示す左側面図である。It is a left view which shows the sound conduit | pipe which concerns on the image display apparatus of the said embodiment. 上記実施形態の画像表示装置に係る音導管を示す背面図である。It is a rear view which shows the sound conduit | pipe which concerns on the image display apparatus of the said embodiment. 比較例として、本発明に係る音導管が無い状態の画像表示装置の音圧特性を示すグラフ図である。As a comparative example, it is a graph which shows the sound pressure characteristic of the image display apparatus of a state without the sound conduit | pipe which concerns on this invention. 実施例として、本発明の実施形態の画像表示装置の音圧特性を示すグラフ図である。As an example, it is a graph which shows the sound pressure characteristic of the image display apparatus of embodiment of this invention. 上記実施形態の画像表示装置が据え付けられた船舶のコンソールを例示する斜視図である。It is a perspective view which illustrates the console of the ship in which the image display apparatus of the said embodiment was installed. 上記実施形態のコンソールのＣ－Ｃ線断面を示す要部断面図である。It is principal part sectional drawing which shows CC line cross section of the console of the said embodiment.
　以下、本発明を実施するための具体的な形態について図面を用いて説明する。 Hereinafter, specific modes for carrying out the present invention will be described with reference to the drawings.
（本発明の実施形態）
　図１は、本発明を適用した実施形態の画像表示装置１を例示する斜視図である。本実施形態の画像表示装置１は、その正面が四角形状の箱型となっており、電子回路及びソフトウエアが内蔵された筐体９と、筐体９の前面側に配された枠体２と、枠体２の内側に位置する画像表示モジュール３と、画像表示モジュール３の表示画面３１を保護する透明パネル４と、２つの長板状の蓋部材５０（５１，５２）とから構成される（図１）。画像表示装置１は、透明パネル４の上下方向の外周位置に所定形状の支持部２０が形成されており、蓋部材５１，５２が支持部２０に嵌め込まれて取り付けられている（図１）。前記蓋部材５２と装置本体の画像表示面とは、境目にて高低差なく配されており、かつ、蓋部材５２の切り欠き部と前記装置本体とで形成された長方形状の開口部７５１から警笛音が発せられる構成となっている（図１）。 (Embodiment of the present invention)
FIG. 1 is a perspective view illustrating an image display device 1 according to an embodiment to which the invention is applied. The image display device 1 according to the present embodiment has a rectangular box shape on the front surface, a housing 9 in which an electronic circuit and software are built, and a frame body 2 arranged on the front side of the housing 9. And the image display module 3 located inside the frame 2, the transparent panel 4 protecting the display screen 31 of the image display module 3, and two long plate-like lid members 50 (51, 52). (FIG. 1). In the image display device 1, a support portion 20 having a predetermined shape is formed at the outer peripheral position of the transparent panel 4 in the vertical direction, and lid members 51 and 52 are fitted and attached to the support portion 20 (FIG. 1). The lid member 52 and the image display surface of the apparatus main body are arranged with no difference in height at the boundary, and from a rectangular opening 751 formed by the notch of the lid member 52 and the apparatus main body. It is configured to emit a horn sound (Figure 1).
　図１に示す例では、画像表示装置１の正面右下には、３つの操作ボタン６１が配されている。画像表示装置１は、液晶画像表示装置である。液晶画像表示装置に係る、電子回路及びソフトウエアは既知の技術が用いられており、本発明の技術的特徴を構成していないことからその説明を省略する。透明パネル４は、ガラス板である。例えば、タッチ入力する用途の場合は、透明パネル４の上にタッチパネルが積層されている。また例えば、既知のタッチパネルを前記透明パネル４とすることができる。 In the example shown in FIG. 1, three operation buttons 61 are arranged on the lower right front of the image display device 1. The image display device 1 is a liquid crystal image display device. Known techniques are used for the electronic circuits and software related to the liquid crystal image display device, and the description thereof is omitted because they do not constitute the technical features of the present invention. The transparent panel 4 is a glass plate. For example, in the case of a touch input application, a touch panel is laminated on the transparent panel 4. For example, a known touch panel can be used as the transparent panel 4.
　図２は、本実施形態の画像表示装置１の正面図である。図３は、画像表示装置１の背面図である。図４は、画像表示装置１の平面図である。図５は、画像表示装置１の右側面図である。図６は、画像表示装置１の底面図である。図７は、本実施形態の画像表示装置１を蓋部材５１，５２を取り外して示す分解斜視図である。 FIG. 2 is a front view of the image display device 1 of the present embodiment. FIG. 3 is a rear view of the image display device 1. FIG. 4 is a plan view of the image display device 1. FIG. 5 is a right side view of the image display device 1. FIG. 6 is a bottom view of the image display device 1. FIG. 7 is an exploded perspective view showing the image display device 1 of the present embodiment with the lid members 51 and 52 removed.
　画像表示装置１の枠体２は長方形状を呈し、透明パネル４の外周に鍔状に形成されており、筐体９を支持固定するため、筐体９と一体的に設けられている（図１～図７）。枠体２の支持部２０には貫通穴２２が所定間隔で形成されている。貫通穴２２のサイズと配置数は、任意である。図３に示す例では、画像表示装置１の上の支持部２０と下の支持部２０とにそれぞれ５つの貫通穴２２が形成されている。液晶画像表示装置１の形状及び重量が大きくなるに伴い、貫通穴２２のサイズを大きくしてその配置数を増やすことで、装置本体をコンソール１０に安定かつ確実に固定することが容易となる。そして、枠体２には、支持部２０と溝部２１が一体的に形成されている。支持部２０には蓋部材５０の突出片５０１と５０２をそれぞれ狭持する狭持金具２６が所定間隔で配されており、蓋部材５０と狭持金具２６とが着脱可能に嵌合する構成となっている（図１、図７）。 The frame body 2 of the image display device 1 has a rectangular shape, is formed in a bowl shape on the outer periphery of the transparent panel 4, and is provided integrally with the housing 9 in order to support and fix the housing 9 (see FIG. 1 to 7). Through holes 22 are formed at predetermined intervals in the support portion 20 of the frame body 2. The size and the number of arrangement of the through holes 22 are arbitrary. In the example shown in FIG. 3, five through holes 22 are formed in each of the upper support portion 20 and the lower support portion 20 of the image display device 1. As the shape and weight of the liquid crystal image display device 1 increase, the size of the through-holes 22 is increased to increase the number of arrangements, thereby facilitating stable and reliable fixing of the device body to the console 10. The frame body 2 is integrally formed with a support portion 20 and a groove portion 21. The support portion 20 is provided with a holding metal fitting 26 that holds the protruding pieces 501 and 502 of the lid member 50 at predetermined intervals, and the lid member 50 and the holding metal fitting 26 are detachably fitted to each other. (FIGS. 1 and 7).
　画像表示装置１をコンソール１０の正面側から据えて、ねじやボルト等の固定金具を前記貫通穴２２に挿通させて装置本体をコンソールに固定するに際し、補強のため、枠体２の支持部２０には金具２７が所定間隔で形成されている。金具２７は四角形状で、枠体２の内側面と透明パネル４の外側面とで溝部２１となっている箇所に合うように嵌め込んで固定してある。四角形状の金具２７の中央には貫通穴２２が形成されており、その外側の段差部分は、ねじやボルト等の固定金具の頭部が入る大きさの円形状の窪み２３となっている（図１～図７）。 When the image display device 1 is placed from the front side of the console 10 and a fixing bracket such as a screw or a bolt is inserted through the through hole 22 to fix the device main body to the console, the support portion 20 of the frame 2 is used for reinforcement. Metal fittings 27 are formed at predetermined intervals. The metal fitting 27 has a quadrangular shape, and is fitted and fixed so as to fit in a portion where the groove portion 21 is formed between the inner surface of the frame body 2 and the outer surface of the transparent panel 4. A through-hole 22 is formed in the center of the square-shaped metal fitting 27, and the stepped portion on the outside thereof is a circular recess 23 large enough to receive the head of a fixing metal fitting such as a screw or bolt (see FIG. 1 to 7).
　前記枠体２は、透明パネル４の外周位置に配されており、枠体２の支持部２０によって画像表示装置１の本体が支持されている。枠体２の材質としては、アルミニウム、鉄、ステンレス等の硬質金属、又は、エポキシ樹脂、ポリアミド樹脂、フェノール樹脂などの強化プラスチックや繊維強化プラスチック（Fiber Reinforced Plastics、FRP）、若しくはこれらの複合材料等が挙げられる。 The frame body 2 is disposed at the outer peripheral position of the transparent panel 4, and the main body of the image display device 1 is supported by the support portion 20 of the frame body 2. The material of the frame 2 is a hard metal such as aluminum, iron or stainless steel, or a reinforced plastic such as epoxy resin, polyamide resin or phenol resin, or fiber reinforced plastic (Fiber Reinforced Plastics, FRP), or a composite material thereof. Is mentioned.
　前記蓋部材５０は、支持部２０に取り付けられた前記固定金具を覆って保護するものであり、その材質としては、アルミニウム、鉄、ステンレス等の硬質金属、又は、エポキシ樹脂、ポリアミド樹脂、フェノール樹脂などの強化プラスチックや繊維強化プラスチック（Fiber Reinforced Plastics、FRP）、若しくはこれらの複合材料等が挙げられる。前記蓋部材５０は、枠体２に求められる強度までの強度は必要とされないことから、汎用されている軽量プラスチック素材としてもよい。 The lid member 50 covers and protects the fixing bracket attached to the support portion 20, and the material thereof is a hard metal such as aluminum, iron, stainless steel, or an epoxy resin, a polyamide resin, or a phenol resin. Reinforced plastics such as, fiber reinforced plastics (Fiber Reinforced Plastics, FRP), or composite materials thereof. The lid member 50 is not required to have a strength up to that required for the frame body 2, and may be a generally used lightweight plastic material.
　図８は、本実施形態の画像表示装置１に係る音導管７の配置構成を側面側から示す要部断面図である。図９は、符号１００１で示す点線で囲った部分を拡大して示す図であり、本実施形態の画像表示装置１に係る窓部７０１の配置構成を右側面側から示す要部断面図である。 FIG. 8 is a cross-sectional view of the main part showing the arrangement configuration of the sound conduit 7 according to the image display device 1 of the present embodiment from the side surface side. FIG. 9 is an enlarged view of a portion surrounded by a dotted line denoted by reference numeral 1001, and is a cross-sectional view of the main part showing the arrangement configuration of the window 701 according to the image display device 1 of the present embodiment from the right side. .
　図８に示す例では、画像表示モジュール３の背面側の構造部材に、ブザー８を端子側で支持するブザー支持部材８１がネジで取付固定されている。ブザー８は市販品を適用することができる。 In the example shown in FIG. 8, a buzzer support member 81 that supports the buzzer 8 on the terminal side is attached and fixed to the structural member on the back side of the image display module 3 with screws. As the buzzer 8, a commercially available product can be applied.
　本実施形態では、前記ブザー支持部材８１の外周と前記音導管７の入口７１とが着脱自在に嵌め合わさって連結されており、ブザー８と音導管７とは非接触となっている（図８）。 In this embodiment, the outer periphery of the buzzer support member 81 and the inlet 71 of the sound conduit 7 are detachably fitted and connected, and the buzzer 8 and the sound conduit 7 are not in contact with each other (FIG. 8). ).
　本実施形態によれば、ブザー８の外周ケースが自由振動状態となり、音導管７が、ブザー８からの音を伝えつつ、ブザー８からの音以外の振動を伝えない構成となる。 According to the present embodiment, the outer peripheral case of the buzzer 8 is in a free vibration state, and the sound conduit 7 transmits the sound from the buzzer 8 while not transmitting vibrations other than the sound from the buzzer 8.
　本実施形態では、装置本体の正面側は、枠体２に窓部７０１が形成されており、当該窓部７０１はスリット状であり、音圧調整用の防水フィルム９０１で覆われている（図８、図９）。本実施形態では、防水フィルム９０１の材質はポリエチレンテレフタレートである。防水フィルム９０１は、枠状の窓用クッションテープ９０２で枠体２の内側に押圧固定されている（図８、図９）。図１０は、窓用クッションテープ９０２を示す平面図であり、符号９１２は切除された窓部分である。つまり、防水フィルム９０１は接着剤等で接着されてはいないが、窓用クッションテープ９０２の復元力で押圧固定されているので、防水フィルム９０１を交換することは容易である。 In the present embodiment, a window portion 701 is formed in the frame 2 on the front side of the apparatus main body, and the window portion 701 has a slit shape and is covered with a waterproof film 901 for adjusting sound pressure (see FIG. 8, FIG. 9). In the present embodiment, the waterproof film 901 is made of polyethylene terephthalate. The waterproof film 901 is pressed and fixed to the inside of the frame body 2 by a frame-shaped window cushion tape 902 (FIGS. 8 and 9). FIG. 10 is a plan view showing the window cushion tape 902. Reference numeral 912 denotes a cut-out window portion. That is, although the waterproof film 901 is not bonded with an adhesive or the like, the waterproof film 901 can be easily replaced because it is pressed and fixed by the restoring force of the window cushion tape 902.
　本実施形態によれば、前記窓部７０１がスリット状となっているので、目立たずデザイン性に優れており、また、前記窓部７０１が音圧調整用の防水フィルム９０１で覆われているので、防塵かつ防水構造に加えて、音圧調整が容易となる。 According to this embodiment, since the window portion 701 has a slit shape, it is inconspicuous and excellent in design, and the window portion 701 is covered with a waterproof film 901 for adjusting sound pressure. In addition to the dustproof and waterproof structure, the sound pressure can be easily adjusted.
　前記防水フィルム９０１の厚みは、例えば、２５～１００μｍ、５０～２００μｍ、１２５～５００μｍ、の範囲内で音圧を規定値に近づける方向で適宜調整される。 The thickness of the waterproof film 901 is appropriately adjusted within a range of, for example, 25 to 100 μm, 50 to 200 μm, and 125 to 500 μm so that the sound pressure approaches a specified value.
　前記音導管７の材質としては、前記ブザー８からの音で共鳴するなどして不要な振動を起こさない材質が好ましく、尚且つ、防水性を有することが好ましい。 The material of the sound conduit 7 is preferably a material that does not cause unnecessary vibration due to resonance with the sound from the buzzer 8, and is preferably waterproof.
　本実施形態では、前記音導管７はエラストマーからなり、所定個所で着脱自在に嵌め合わさって連結されている（図８、図９）。 In the present embodiment, the sound conduit 7 is made of an elastomer, and is detachably fitted and connected at a predetermined location (FIGS. 8 and 9).
　本実施形態によれば、前記音導管７が防水性に優れたものとなり、尚且つ、不要な振動を装置本体のフレームに伝えない構造となる。すなわち、ボルト、ネジ、はんだ付け、接着剤による接着、溶着などの固定手段で固定される構造とは異なり、エラストマーからなる音導管７による着脱自在の嵌め合い構造を採用することでブザー８からの音以外の振動が直接伝達し難い構成となる。 According to this embodiment, the sound conduit 7 is excellent in waterproofness, and has a structure that does not transmit unnecessary vibration to the frame of the apparatus main body. That is, unlike the structure fixed by fixing means such as bolts, screws, soldering, adhesive bonding, welding, etc., by adopting a detachable fitting structure by the sound conduit 7 made of elastomer, The configuration is such that vibrations other than sound are not directly transmitted.
　図１１は、本実施形態の画像表示装置に係る音導管７を示す正面図である。図１２は、音導管７の平面図である。図１３は、音導管７の底面図である。図１４は、音導管７を右側面側から示す断面図である。図１５は、音導管７の左側面図である。図１６は、音導管７の背面図である。 FIG. 11 is a front view showing the sound conduit 7 according to the image display apparatus of the present embodiment. FIG. 12 is a plan view of the sound conduit 7. FIG. 13 is a bottom view of the sound conduit 7. FIG. 14 is a cross-sectional view showing the sound conduit 7 from the right side. FIG. 15 is a left side view of the sound conduit 7. FIG. 16 is a rear view of the sound conduit 7.
　前記音導管７は、入口７１が円形状であり、ブザー支持部材８１の外周と嵌め合わせるためのリング７１１が一体成形されている（図８、図１１、図１２、図１３、図１４、図１５）。 In the sound conduit 7, the inlet 71 has a circular shape, and a ring 711 for fitting with the outer periphery of the buzzer support member 81 is integrally formed (FIGS. 8, 11, 12, 13, 14, and 14). 15).
　前記音導管７は、出口７２が長方形状であり、出口７２の変形を抑えるために、上辺と下片とが柱状部材７２２１で接続されており、そして、出口７２の位置ずれを抑えるために、上鍔部７２１と下鍔部７２２とが前後に段違いに一体成形されている（図８、図１１、図１２、図１３、図１４、図１５）。これによって、鍔部７２１と７２２が前記装置本体の窓部７０１周辺に形成された窪み部と嵌合して位置決めされる構成となる（図８）。 In the sound conduit 7, the outlet 72 has a rectangular shape, the upper side and the lower piece are connected by a columnar member 7221 in order to suppress deformation of the outlet 72, and in order to suppress positional deviation of the outlet 72, The upper collar portion 721 and the lower collar portion 722 are integrally formed in a stepwise manner (FIGS. 8, 11, 12, 13, 14, and 15). As a result, the flanges 721 and 722 are configured to be fitted and positioned with recesses formed around the window 701 of the apparatus main body (FIG. 8).
　前記音導管７の管路７３は、７０度以上１１０度以下の角度Ｋ１で折れ曲がっている（図１４、図１５）。これは、前記音導管７が前記画像表示モジュール３を迂回するのに好適な角度範囲である。図１４と図１５に示す例では、管路７３が折れ曲がる角度Ｋ１は、約９０度である。 The conduit 73 of the sound conduit 7 is bent at an angle K1 of 70 degrees or more and 110 degrees or less (FIGS. 14 and 15). This is an angle range suitable for the sound conduit 7 to bypass the image display module 3. In the example shown in FIGS. 14 and 15, the angle K1 at which the pipe 73 is bent is approximately 90 degrees.
　本実施形態では、入口７１の内径と出口７２の長辺との寸法比が１０：９～１０：１１であるとともに、入口７１の内径と出口７２の短辺との寸法比が１０：１～１０：２である（図１１、図１２）。ここで、出口７２の長辺は、柱状部材７２２１を含んだ長さである。 In this embodiment, the dimensional ratio between the inner diameter of the inlet 71 and the long side of the outlet 72 is 10: 9 to 10:11, and the dimensional ratio between the inner diameter of the inlet 71 and the short side of the outlet 72 is 10: 1 to 10: 2 (FIGS. 11 and 12). Here, the long side of the outlet 72 is a length including the columnar member 7221.
　船舶用の画像表示装置では、警笛音の規格があり、画像表示装置の前面から１ｍ離れた位置での音圧を測定し、前記音圧が７５～８５ｄＢで安定していることが要求される。例えば、発振周波数が３．５ｋＨｚ、音圧が９０ｄＢのブザーは、標準的な外径寸法が３１．５ｍｍである。 The image display device for ships has a standard of horn sound, and the sound pressure at a position 1 m away from the front surface of the image display device is measured, and the sound pressure is required to be stable at 75 to 85 dB. . For example, a buzzer having an oscillation frequency of 3.5 kHz and a sound pressure of 90 dB has a standard outer diameter of 31.5 mm.
　図１７は、比較例として、本発明に係る音導管７が無い状態の画像表示装置の音圧特性を示すグラフ図である。図１８は、実施例として、本発明の実施形態の画像表示装置１の音圧特性を示すグラフ図である。いずれの場合も、温度が２５度に設定された無響室内で、集音マイクで、画像表示装置の音圧特性の時間変動を計測した。 FIG. 17 is a graph showing the sound pressure characteristics of an image display device without the sound conduit 7 according to the present invention as a comparative example. FIG. 18 is a graph showing the sound pressure characteristics of the image display device 1 according to the embodiment of the present invention as an example. In any case, the temporal variation of the sound pressure characteristic of the image display device was measured with a sound collecting microphone in an anechoic chamber where the temperature was set to 25 degrees.
　図１７に示すとおり、比較例は、正面音圧の変動幅が約６ｄＢあり、時間を経過しても音圧が不安定な状態が解消されない。 As shown in FIG. 17, in the comparative example, the fluctuation range of the front sound pressure is about 6 dB, and the state where the sound pressure is unstable is not resolved even after a lapse of time.
　図１８に示すとおり、実施例の画像装置１は、正面音圧の変動幅は約０．５ｄＢ未満であり、時間を経過しても音圧が安定な状態が維持されている。画像表示装置１を右１５度に振った場合は、集音マイクと装置の開口部７５１との距離が短くなった分だけ音圧が高くなり、音圧の変動幅は約０．５ｄＢ未満であり、時間を経過しても音圧が安定な状態が維持されている。画像表示装置１を左１５度に振った場合は、集音マイクと装置の開口部７５１との距離が長くなった分だけ音圧が低くなり、音圧の変動幅は約０．５ｄＢ未満であり、時間を経過しても音圧が安定な状態が維持されている。 As shown in FIG. 18, in the image device 1 of the example, the fluctuation width of the front sound pressure is less than about 0.5 dB, and the sound pressure is maintained in a stable state over time. When the image display apparatus 1 is swung to the right by 15 degrees, the sound pressure increases as the distance between the sound collecting microphone and the opening 751 of the apparatus becomes shorter, and the fluctuation range of the sound pressure is less than about 0.5 dB. Yes, a stable sound pressure is maintained over time. When the image display device 1 is swung to the left by 15 degrees, the sound pressure is reduced by the distance between the sound collection microphone and the opening 751 of the device, and the fluctuation range of the sound pressure is less than about 0.5 dB. Yes, a stable sound pressure is maintained over time.
　本実施形態の画像表示装置１をコンソール１０に取り付ける際は、まず、コンソールの筐体１１の正面側に開けられている窓部の枠部分にゴム製パッキン２０６を敷いてから画像表示装置１を据える。そして、ワッシャ付きの固定ねじ（固定金具）２０８を画像表示装置１の貫通穴２２に通して、筐体１１の正面側に形成されたねじ穴に取り付けて締め付け固定する。次に、前記蓋部材５０（５１，５２）を支持部２０に取り付ける（図２０）。コンソール１０の正面側でねじ固定するため、固定ねじ２０８の取り付けは容易である。固定ねじ２０８は、固定ボルトであってもよい。 When attaching the image display device 1 of this embodiment to the console 10, first, the rubber seal 206 is laid on the frame portion of the window portion opened on the front side of the console housing 11, and then the image display device 1 is mounted. Set it. Then, a fixing screw (fixing bracket) 208 with a washer is passed through the through hole 22 of the image display device 1 and attached to a screw hole formed on the front side of the housing 11 to be fastened and fixed. Next, the lid member 50 (51, 52) is attached to the support portion 20 (FIG. 20). Since the screw is fixed on the front side of the console 10, the fixing screw 208 can be easily attached. The fixing screw 208 may be a fixing bolt.
　上記の方法で画像表示装置１をコンソール１０に取り付けると、蓋部材５０（５１，５２）によって前記固定ねじ２０８が覆われるとともに、蓋部材５０（５１，５２）と装置本体の画像表示面とが境目にて高低差なく配されたデザイン性が高い構成となる。さらには、前記窓部７０１からのブザー音が、この窓部７０１と一対一で対応する蓋部材５２の切り欠き部と装置本体とで形成された長方形状の開口部７５１から発せられる構成となっているから、ブザーの存在をも意識させないデザイン性が高い構成となる（図１９）。 When the image display device 1 is attached to the console 10 by the above method, the fixing screw 208 is covered with the lid member 50 (51, 52), and the lid member 50 (51, 52) and the image display surface of the apparatus main body are connected. It has a high design with no difference in height at the border. Further, the buzzer sound from the window portion 701 is emitted from a rectangular opening 751 formed by the notch portion of the lid member 52 and the apparatus main body that correspond to the window portion 701 on a one-to-one basis. Therefore, the design is high without making the presence of the buzzer noticeable (FIG. 19).
　図８に示す例では、前記長方形状の開口部７５１は前記窓部７０１よりもその高さが下の位置にずらして配される。これによって、塵など固形物の侵入に対する保護と、水の侵入に対する保護を考慮しつつ、デザイン性を維持する構成となる。 In the example shown in FIG. 8, the rectangular opening 751 is arranged with its height shifted to a position below the window 701. As a result, the design is maintained while taking into consideration the protection against intrusion of solid matter such as dust and the protection against intrusion of water.
　以上、本発明は、上述した実施の形態に限定されるものではない。画像表示装置１は、液晶表示装置に限定されず、有機エレクトロルミネッセンス表示装置やプラズマ表示装置としてもよい。前記コンソールとしては、図１９で例示した船舶のコンソールに限らず、航空機のコンソールや現金自動預け払い機（ATM）や据付型カード読取装置等のコンソールであってもよい。 As described above, the present invention is not limited to the embodiment described above. The image display device 1 is not limited to a liquid crystal display device, and may be an organic electroluminescence display device or a plasma display device. The console is not limited to the console of the ship illustrated in FIG. 19, but may be a console of an aircraft, an automated teller machine (ATM), an installed card reader, or the like.
　上述の実施形態では、前記長方形状の開口部７５１は前記窓部７０１よりもその高さが下の位置にずらして配されるとして説明したが、これに限定されるものではなく、例えば、前記長方形状の開口部７５１を前記窓部７０１と同じ高さの位置に配してもよい。これによって、より大きな音圧を得やすい構成となる。このように、本発明は、その趣旨を逸脱しない範囲で適宜変更が可能であることはいうまでもない。 In the above-described embodiment, the rectangular opening 751 has been described as having a height shifted from the window 701 at a lower position. However, the present invention is not limited thereto. A rectangular opening 751 may be disposed at the same height as the window 701. As a result, it is easy to obtain a larger sound pressure. Thus, it goes without saying that the present invention can be modified as appropriate without departing from the spirit of the present invention.
　１　　　　　　　　　　　　本発明の画像表示装置、
　２　　　　　　　　　　　　枠体、
　２０　　　　　　　　　　　支持部、
　２１　　　　　　　　　　　溝部、
　２２　　　　　　　　　　　貫通穴、
　２０８　　　　　　　　　　ねじやボルト等の固定金具、
　３　　　　　　　　　　　　画像表示モジュール、
　３１　　　　　　　　　　　画像表示モジュールの表示画面、
　４　　　　　　　　　　　　透明パネル、
　５０、５１、５２　　　　　蓋部材、
　７　　　　　　　　　　　　音導管、
　７０１　　　　　　　　　　窓部、
　７１１　　　　　　　　　　リング、
　７５１　　　　　　　　　　開口部、
　８　　　　　　　　　　　　ブザー、
　８１　　　　　　　　　　　ブザー支持部材、
　９　　　　　　　　　　　　画像表示装置の筐体、
　９０１　　　　　　　　　　防水フィルム、
　９０２　　　　　　　　　　窓用クッションテープ、
　１０　　　　　　　　　　　コンソール、
　１１　　　　　　　　　　　コンソールの筐体 1 image display device of the present invention,
2 frames,
20 support part,
21 groove,
22 through hole,
208 Fixing brackets such as screws and bolts,
3 Image display module,
31 Display screen of the image display module,
4 Transparent panel,
50, 51, 52 Lid member,
7 Sound conduit,
701 Window,
711 ring,
751 opening,
8 Buzzer,
81 buzzer support member,
9 Image display device housing,
901 waterproof film,
902 Cushion tape for windows,
10 console,
11 Console case

Claims (8)

  1. 　画像表示モジュールと、前記画像表示モジュールの背面側に配されたブザーと、前記ブザーが発した音を迂回させつつ当該音の出口を狭くして伝える音導管を備え、前記ブザーからの音が前記音導管を介して装置本体の正面側に形成された窓部から発せられることを特徴とする画像表示装置。 An image display module, a buzzer disposed on the back side of the image display module, and a sound conduit for diverting the sound emitted from the buzzer while diverting the sound, and transmitting the sound from the buzzer. An image display device, characterized by being emitted from a window portion formed on the front side of the device main body through a sound conduit.
  2. 　前記窓部はスリット状であり、音圧調整用の防水フィルムで覆われていることを特徴とする請求項１記載の画像表示装置。 The image display device according to claim 1, wherein the window portion is slit-shaped and covered with a waterproof film for adjusting sound pressure.
  3. 　前記音導管はエラストマーからなり、所定個所で着脱自在に嵌め合わさって連結されていることを特徴とする請求項１または２記載の画像表示装置。 3. The image display device according to claim 1, wherein the sound conduit is made of an elastomer and is detachably fitted and connected at a predetermined location.
  4. 　前記ブザーを端子側で支持するブザー支持部材を備え、前記ブザー支持部材の外周と前記音導管の入口とが着脱自在に嵌め合わさって連結されており、前記ブザーと前記音導管が非接触となっていることを特徴とする請求項１から３のいずれか一項記載の画像表示装置。 A buzzer support member for supporting the buzzer on the terminal side; an outer periphery of the buzzer support member and an inlet of the sound conduit are detachably fitted to each other, and the buzzer and the sound conduit are not in contact with each other; The image display device according to claim 1, wherein the image display device is a display device.
  5. 　前記音導管の入口は丸い形状であり、前記音導管の出口は細長い形状であり、前記音導管の管路が７０度以上１１０度以下の角度で折れ曲がっていることを特徴とする請求項１から４のいずれか一項記載の画像表示装置。 The inlet of the sound conduit has a round shape, the outlet of the sound conduit has an elongated shape, and the conduit of the sound conduit is bent at an angle of 70 degrees to 110 degrees. The image display device according to claim 4.
  6. 　前記入口の内径と前記出口の長辺との寸法比が１０：９～１０：１１であるとともに、前記入口の内径と前記出口の短辺との寸法比が１０：１～１０：２であることを特徴とする請求項５記載の画像表示装置。 The dimensional ratio between the inner diameter of the inlet and the long side of the outlet is 10: 9 to 10:11, and the dimensional ratio between the inner diameter of the inlet and the short side of the outlet is 10: 1 to 10: 2. The image display device according to claim 5.
  7. 　前記画像表示モジュールの外周に支持部があり、ねじやボルト等の固定金具を前記支持部に形成された貫通穴に挿通させて前記装置本体をコンソールに固定し、蓋部材を取り付ける構成とされ、前記蓋部材には前記窓部と一対一で対応する切り欠き部が形成されており、前記蓋部材によって前記固定金具が覆われるとともに前記蓋部材と装置本体の画像表示面とが境目にて高低差なく配され、かつ、前記窓部からの音が前記蓋部材の切り欠き部と前記装置本体とで形成された長方形状の開口部から発せられることを特徴とする請求項１から６のいずれか一項記載の画像表示装置。 There is a support part on the outer periphery of the image display module, and a fixing bracket such as a screw or a bolt is inserted into a through hole formed in the support part to fix the apparatus body to the console, and a cover member is attached. The lid member is formed with a notch corresponding to the window portion on a one-to-one basis, and the fixing member is covered by the lid member, and the lid member and the image display surface of the apparatus main body are at a boundary. 7. The system according to claim 1, wherein the sound is emitted from a rectangular opening formed by the notch portion of the lid member and the apparatus main body, and the sound from the window portion is emitted without difference. An image display device according to claim 1.
  8. 　前記画像表示装置本体を船舶のコンソールに据え付け固定する構成とし、前記ブザーを警笛として用いることを特徴とする請求項１から７のいずれか一項記載の画像表示装置。 The image display device according to any one of claims 1 to 7, wherein the image display device main body is installed and fixed on a console of a ship, and the buzzer is used as a horn.
PCT/JP2015/073014 2014-08-19 2015-08-17 Image display device WO2016027766A1 (en)

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JP2014166874A JP2016043710A (en) 2014-08-19 2014-08-19 Image display apparatus
JP2014-166874 2014-08-19

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JP2019051072A (en) * 2017-09-15 2019-04-04 株式会社Ｆｕｊｉ Stocker and sound unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536762A (en) * 1978-09-07 1980-03-14 Seiko Instr & Electronics Ltd Electronic alarm clock
JPS5728498U (en) * 1980-07-24 1982-02-15
JP2008044558A (en) * 2006-08-18 2008-02-28 Yanmar Co Ltd Power generating equipment for ship
JP2010175662A (en) * 2009-01-28 2010-08-12 Yazaki Corp Auditory information providing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536762A (en) * 1978-09-07 1980-03-14 Seiko Instr & Electronics Ltd Electronic alarm clock
JPS5728498U (en) * 1980-07-24 1982-02-15
JP2008044558A (en) * 2006-08-18 2008-02-28 Yanmar Co Ltd Power generating equipment for ship
JP2010175662A (en) * 2009-01-28 2010-08-12 Yazaki Corp Auditory information providing device

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