WO2014126083A1 - 伝声器 - Google Patents
伝声器 Download PDFInfo
- Publication number
- WO2014126083A1 WO2014126083A1 PCT/JP2014/053139 JP2014053139W WO2014126083A1 WO 2014126083 A1 WO2014126083 A1 WO 2014126083A1 JP 2014053139 W JP2014053139 W JP 2014053139W WO 2014126083 A1 WO2014126083 A1 WO 2014126083A1
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- WIPO (PCT)
- Prior art keywords
- film member
- holding
- film
- membrane
- transmitter
- Prior art date
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
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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
- 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
-
- 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
- G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
Definitions
- the present invention relates to a protective mask used for the purpose of securing a wearer's breathing from various substances and conditions harmful to the human body, and a transmitter used for protective clothes.
- a voice transmitter in order to ensure sufficient voice transmission performance, it is desirable that the voice transmission membrane be in a state of being given a predetermined tension. Therefore, in the transmission device of the above-mentioned patent document 1, while providing an inner annular rib in a lid, providing a convex-shaped projection in a case and sandwiching a transmission membrane between these, it is predetermined to this transmission membrane. I'm nervous. However, in the invention described in Patent Document 1 above, in order to obtain this tensioned state, a very accurate process is required.
- the present invention has been made in view of such problems, and it is an object of the present invention to provide a voice transmitter which can be manufactured at low cost and can clearly listen to the voice uttered by the wearer outside with a simple structure. Is an issue.
- the present invention is characterized by comprising a membrane member capable of transmitting sound from one side to the other side, and a holding member for holding at least a part of the membrane member.
- the holding member Is configured to be held by the holding member in a state in which the substantially entire surface of the film member is tensioned by being heated and contracted.
- the holding member is formed in a frame shape having a predetermined shape, and the opening formed inside the holding member is configured to be closed by the membrane member. .
- the magnitude of the tension given to the membrane member be adjusted to a predetermined value by controlling at least one of the heating temperature and the heating time of the membrane member.
- the membrane member is formed of a heat-shrinkable material, and in a state where the membrane member is held by the holding member, the membrane member is heated and contracted to substantially cover the entire membrane member. It is configured to be held by the holding member in a tensioned state. As a result, if the film member is heated while the film member is held by the holding member, the film member contracts. Therefore, even if the holding member is not provided with a complicated shape or configuration, or the components constituting the holding member are not fitted together by applying a strong force, the film member is given tension by the holding member over substantially the entire area.
- the film is held by the holding member, and the generation of wrinkles and sags of the film member can be reliably suppressed.
- the holding member is formed in a frame shape having a predetermined shape, and the opening formed inside the holding member is configured to be closed by the membrane member.
- the frequency characteristic of the sound passing through the film member can be obtained. , Can be easily adjusted.
- FIG. 1 It is a disassembled perspective view which shows typically the components which comprise the transmission unit based on Embodiment 1 of this invention. It is a disassembled perspective view which shows typically the component of the transmitter main body in the transmitter unit of the Embodiment 1.
- FIG. It is a perspective view which shows typically the state in which the transmitter main body in the transmitter unit of the Embodiment 1 was assembled. It is an external view which shows typically the state which used the transmission unit of the Embodiment 1 for the protective mask. It is an external view which shows typically the state which used the transmission unit of the Embodiment 1 for protective clothing. It is a disassembled perspective view which shows typically the components which comprise the 1st modification of the transmission unit of the Embodiment 1.
- FIG. 1 It is a disassembled perspective view which shows typically the components which comprise the 1st modification of the transmission unit of the Embodiment 1.
- FIG. 1 It is a disassembled perspective view which shows typically the components which comprise the 2nd modification of the transmission unit of the Embodiment 1.
- FIG. 2 It is a disassembled perspective view which shows typically the components which comprise the transmitter main body which concerns on Embodiment 2 of this invention.
- FIG. 3 shows typically the transmitter main body components which concern on Embodiment 3 of this invention.
- FIG. 3 shows typically the state in which the transmission main body in the transmission unit of the Embodiment 3 was assembled.
- Embodiment 5 It is a table
- surface which shows the relationship of a heating condition and a frequency characteristic to the transmitter unit which concerns on the said Embodiment 1.
- First Embodiment of the Invention 1 to 6 show a first embodiment of the present invention.
- the configuration of the microphone unit 10 of this embodiment 1 shown in FIG. 1 is provided on the protective mask 110 shown in FIG. 3 or the protective clothing 120 shown in FIG. It is for transmitting the voice uttered by the wearer 100 wearing the clothes 120 to the outside.
- a transmitter unit 10 according to the first embodiment shown in FIG. 1 includes a transmitter body 11, a cover member 14, and a placement unit 15.
- the transmission main body 11 of the first embodiment includes a membrane member 12 and a holding member 13.
- the film member 12 is made of a heat-shrinkable material, such as polypropylene or polyester.
- the film member 12 is configured as a film-shaped film-like member by these materials, and can propagate sound from one side to the other side.
- the film member 12 is preferably formed to a thickness of about 0.01 to 0.2 mm. In the first embodiment, the film thickness of the film member 12 is formed to be about 0.05 mm.
- the film member 12 has a heat-shrinkable property, and the voice uttered by the wearer 100 from one side (i.e., the inner side of the transmitter unit 10) is on the other side (i.e., the outer side of the transmitter unit 10). Any material may be used as long as the material can be propagated to any one of them, and any film thickness may be used.
- the entire shape of the film member 12 is formed to be larger than the outer diameter of the holding member 13.
- the shape of the film member 12 may be the same as the shape of the outer edge of the holding member 13, but is not limited to the same shape as the holding member 13.
- the holding member 13 is formed of a highly rigid resin or the like.
- the holding member 13 is formed in a frame shape. Specifically, in the first embodiment, the holding member 13 is formed in an annular shape.
- the voice transmitter main body 11 is sandwiched between the cover member 14 and the placement unit 15.
- the cover member 14 is formed of a highly rigid resin or the like.
- the member main body portion 16 of the cover member 14 is formed in a substantially cylindrical shape.
- the inner diameter of the member main body portion 16 is slightly larger than the diameter of the transmitter main body 11, and is formed so as to be able to accommodate the transmitter main body 11 inside.
- a protective member 17 is disposed at one end side of the cover member 14.
- the protection member 17 is formed by arranging a plurality of rod-like members 17a in parallel.
- a gap 18 is formed between the rod-like members 17a.
- a locking portion 19 is provided at the lower end portion of the member main body portion 16.
- a claw portion is disposed inwardly at the tip end portion of the locking portion 19, and the claw portion is locked to a mounting portion 15 described later.
- the placement unit 15 is disposed on the surface side of a portion of the protective mask 110 or the protective garment 120 that is disposed in proximity to the mouth of the wearer 100 during use.
- the mounting portion 15 is formed in a substantially annular shape by a resin or the like having high rigidity.
- the outer diameter of the mounting portion 15 is formed to have a size substantially equal to the outer diameter of the transmitter body 11.
- the placement unit 15 may be bonded to the protective mask 110 or the protective garment 120, or may be integrally formed with the protective mask 110 or the protective garment 120.
- the protective mask 110 or the protective garment 120 It may be formed detachably.
- the entire transmission unit 10 may be bonded to the protective mask 110 or the protective garment 120 or may be integrally formed with the protective mask 110 or the protective garment 120. That is, part or all of the transmission unit 10 may be detachable from or integrally formed with the protective mask 110 or the protective garment 120.
- the protective mask 110 shown in FIG. 3 is, for example, a gas mask, a dust mask, an air line mask, an air respirator, etc., and dust, fine toxic substances such as asbestos, toxic gases, harmful aerosols and microorganisms. , Toxins, etc., to protect the worker's breathing from the air.
- the transmission unit 10 of this embodiment is disposed at a portion corresponding to the mouth of the wearer 100. ing.
- the mask main body portion 111 is provided with a filter member 112 for filtering dust and poisons.
- the protective mask 110 may basically have any configuration.
- the face of the protective mask 110 may have a configuration other than the half surface type shown in FIG. 3, for example, the entire surface type or the face shield type.
- the intake mechanism of the protective mask 110 may be, for example, a so-called air supply type provided with a self-contained breathing apparatus or the like other than the filtration type shown in FIG. 3.
- Protective clothing 120 shown in FIG. 4 includes, for example, chemical protective clothing, protective clothing for flying objects, protective clothing for electric work, protective clothing for radiation, protective clothing for fire protection, protective clothing for wasps, protective clothing for explosion protection Etc.
- a hood-type protective garment 120 is shown covering from the head to the shoulder of the wearer 100.
- other types of protective clothing may be used.
- the protective clothing body 121 of the protective clothing 120 is formed of a material that does not transmit dust and poisons.
- a transparent window 122 is provided at a position corresponding to the eyes of the wearer 100 when the wearer 100 wears the protective clothing body 121.
- a central opening 123 is formed in the protective clothing 120, the placement unit 15 is disposed in the central opening 123, and the transmission unit 10 is disposed. Further, side openings 124 are formed on both sides of the central opening 123, and a filter member 112 is disposed in the side openings 124.
- the voice transmission unit 10 and the filter member 112 are connected to a mask 125 which the wearer 100 wears inside the protective clothing body 121. Thereby, the breathing of the wearer 100 wearing the protective clothing 120 is secured, and the voice uttered is transmitted to the outside.
- a listening unit 126 is provided in the portion of the protective clothing body 121 corresponding to the ear of the wearer 100 when worn by the wearer 100 shown in FIG.
- the listening unit 126 can be formed in the same configuration as the transmitter unit 10 to reduce the cost of the protective clothing 120.
- the protective garment 120 may basically have any configuration. For example, it may be a suit type that covers the entire body of the wearer 100, instead of the configuration of covering the head to the shoulder of the wearer 100 shown in FIG. In addition, a portion of the protective clothing 120 corresponding to the face of the wearer 100 may be opened, and the face portion (with the mask 125 attached) of the wearer 100 may be exposed to the outside. Alternatively, an air supply device (not shown) for supplying clean air may be provided inside the protective clothing 120, and the wearer 100 may not wear the mask 125 in the protective clothing 120.
- the film member 12 is placed on one surface of the holding member 13. At this time, the entire surface of one surface of the holding member 13 is covered with the film member 12. In this state, the peripheral edge side of the film member 12 is wound around the other surface side through the peripheral edge portion 13 a of the holding member 13. That is, the peripheral portion of the film member 12 is in a state of being wound around the lower surface side of the holding member 13 in FIG. 2A.
- the film member 12 contracts due to heat.
- the peripheral edge portion of the film member 12 that is, the portion around the lower surface side of the holding member 13
- the film member 12 is held by the holding member 13 so as to cover the holding member 13 while maintaining tension.
- the portion of the film member 12 disposed on the upper surface side of the holding member 13 is maintained in a state free from wrinkles and sags.
- the transmission main body 11 is completed by the above steps.
- the wearer 100 accommodates the transmission main body 11 inside the cover member 14 from the state shown in FIG. Then, the cover member 14 is placed on the placement portion 15 of the protective mask 110, and the claw portion of the locking portion 19 is engaged with the placement portion 15 to place the transmission body 11 and the cover member 14. It is in a state of being held between the holder 15 and the holder 15. Thus, the transmitter unit 10 is attached to the protective mask 110.
- the wearer 100 arranges the protective mask 110 with the transmitter unit 10 in the mouth, and completes the wearing of the protective mask 110 by covering the string portion with the ear. In this state, the wearer 100 can use the protective mask 110.
- this transmission unit 10 in the protective clothing 120, similarly, the cover member 14 which accommodated the transmission main body 11 in the mounting part 15 of the protective clothing 120 is mounted, and a transmission is carried out. After the unit 10 is mounted on the protective clothing 120, the wearer 100 wears the protective clothing 120.
- the inventor made a plurality of types of holding members 13 while changing the heating temperature and the heating time. Then, with respect to these holding members 13, the amount of voice transmission was measured in the low frequency region of voice (here, 700 Hz) and the high frequency region (here, 3200 Hz).
- polypropylene with a thickness of 15 ⁇ m was used as the film member 12.
- voice among the film members 12 was made into the circular area
- this measurement was performed by measuring a sound of 70 [dB] for 2 minutes at a distance of 1 meter using a precision sound level meter NL-52 manufactured by Rion Co., Ltd. as a measuring instrument.
- FIG. 11 is a table showing a part of the measurement results.
- the tension applied to the membrane member 12 ie, the membrane pressure in FIG. 11
- the sound transmittance of the entire frequency range was 59.9 [dBA].
- permeability of the sound of 700 [Hz] is 37.5 [dBA]
- the transmittance of the sound of 3200 [Hz] was 5.6 [dBA].
- the heating temperature is 160 ° C. and the heating time is 60 seconds
- the tension applied to the film member 12 is 28.3 [g / cm 2 ]
- the transmissivity of voice in all frequency regions is 57.7 [dBA ]Met.
- voice of 700 [Hz] was 14.8 [dBA]
- voice of 3200 [Hz] was 18.8 [dBA].
- the tension value of the film member 12 could be adjusted by changing the heating temperature and the heating time. And when this tension was small, it turned out that the transmissivity of the low frequency area of sound becomes high, and on the other hand, when this tension is large, the transmissivity of high frequency area of the sound becomes high.
- the value of tension of the film member 12 can be adjusted by controlling the heating temperature and the heating time, it is adjusted according to the voice quality (for example, according to the gender, age, etc.) It becomes easy to adjust the value of the tension of the membrane member 12 to produce the transmission unit 10 that easily transmits the voice to the outside.
- the tension value of the film member 12 can also be adjusted by controlling only one of the heating temperature and the heating time, and accordingly, the frequency characteristic of the film member 12 can be adjusted.
- the film member 12 of the transmitter body 11 is formed of a heat-shrinkable material, and the film member 12 is held by the holding member 13.
- the film member 12 is held by the holding member 13 by being configured to be held by the holding member in a state in which the substantially entire surface of the film member 12 is tensioned by heating and contraction. If the film member 12 is heated in the state, the film member 12 contracts. Therefore, even if the holding member 13 is not provided with a complicated shape or configuration, or the components constituting the holding member 13 are not fitted together by applying a strong force, the film member 12 is substantially entirely provided by the holding member 13.
- the holding member 13 is formed in a substantially circular shape in a front view or a frame shape having an arbitrary shape, and the opening formed inside the holding member 13 is configured to be closed by a membrane member.
- tension on the membrane member 12 is given from all directions around the membrane member 12. Therefore, the generation of wrinkles and sags of the film member 12 can be more reliably suppressed.
- the magnitude of the tension given to the membrane member 12 can be easily adjusted by controlling at least one of the heating temperature and the heating time of the membrane member 12. Therefore, the frequency characteristics of the sound passing through the film member 12 can be easily adjusted. As a result, it is possible to easily and inexpensively adjust the tension of the film member 12 with high accuracy according to the voice quality, and to manufacture the transmission unit 10 that easily transmits the voice to the outside.
- the holding member 13 is formed in a substantially annular shape in a front view, but the present invention is limited thereto. Instead, any shape may be adopted as long as the holding member 13 has a frame shape.
- the transmission main body 11, the cover member 14 and the placement portion 15 of the transmission unit 10 are respectively formed in a substantially rectangular shape in a front view, and the transmission
- the holding member 13 of the main body 11 can also be formed in an annular shape substantially rectangular in a front view.
- the film member 12 is formed to be larger than the overall shape of the holding member 13.
- the member main body portion 16 of the cover member 14 is formed in a substantially square pole shape, and the mounting portion 15 is formed in a flat and substantially rectangular shape.
- the transmitter unit, the cover member 14, and the mounting portion are so-called gourd-shaped (a pair of convex curved surfaces and a pair of concave curved surfaces in front view) It can also be formed in a configuration including a concave curved surface, such as a shape formed by
- the transmitter body 11, the cover member 14, and the mounting portion 15 may be formed into a polygon other than a rectangle, for example, an arbitrary polygon such as a pentagon or a hexagon in a front view. It can also be formed to have a shape including a set of curved surfaces or straight lines that are substantially concave in part. Furthermore, although not shown, the transmission main body 11, and in addition to that, the cover member 14 and the mounting portion 15 can be formed into any three-dimensional shape.
- the transmission main body 11 is formed in a cone shape (concave conical shape) or a dome shape (expansion hemispherical shape), and the cover member 14 and the mounting portion 15 are concave according to the shape of the transmission main body 11 It can also be formed in a convex shape.
- the holding member 13 of the transmitter body 11 is formed as a cone-shaped or dome-shaped framework, and the membrane member 12 is placed on the framework and heated and contracted to form a cone of the transmitter body 11. It is conceivable to form in a mold or dome shape. By doing this, the directivity of the voice uttered by the wearer 100 can be easily adjusted.
- the holding member 13 may have any shape other than the frame shape as long as the film member 12 can be tensioned in a state in which the film member 12 is fixed to be in a state free from wrinkles and slack.
- the holding member 13 may be formed in a substantially "U” shape or a substantially "U” shape, and is configured as a pair of rod-like members opposed substantially in parallel, and the holding member 13 Alternatively, at least a portion of the membrane member 12 disposed on the inside of the frame may be held.
- the transmission unit 10 can be easily formed in the transmission main body 11 while being freely formed so as to be a shape that conforms to the shapes and specifications of the protective mask 110 and the protective clothing 120.
- the membrane member 12 can be in a state free from wrinkles and sags. Further, the degree of freedom in selecting the shape of the transmitter unit 10 and the transmitter body 11 is increased, and the design of the protective mask 110 and the protective garment 120 can be facilitated.
- FIG. 1 A second embodiment of the present invention is shown in FIG. 1
- a transmitter main body 21 is provided in place of the transmitter main body 11 of the first embodiment.
- the transmission main body 21 includes a membrane member 22 and a pair of holding members 23a and 23b.
- the film member 22 of the second embodiment shown in FIG. 7 is formed in a substantially circular shape in a front view.
- the diameter of the film member 22 may be the same as the diameter (outer diameter) of the holding members 23a and 23b, and may be larger or smaller than the diameter of the holding members 23a and 23b.
- the shape of the film member 22 may be any shape as long as it is not smaller than the inner diameter of the holding members 23a and 23b.
- the holding members 23a and 23b of the second embodiment are each formed in an annular frame shape, and sandwich the membrane member 22.
- the diameters of the respective holding members 23a and 23b may be the same, and for example, the diameter of the holding member 23a may be formed larger than the other, for example, the holding member 23b.
- the other configuration is the same as that of the first embodiment.
- the membrane member 22 is disposed between the pair of holding members 23a and 23b in the process of manufacturing the transmission body 21. Then, after the film member 22 is held between the pair of holding members 23a and 23b and fixed by a desired method, the film member 22 is heated by heating to tension the film member 22 so as to wrinkle the film member 22.
- the holding members 23a and 23b are held without slack.
- the peripheral portion of the holding member having a large diameter, for example, the holding member 23a is held with a small diameter in a state in which the membrane member 22 is sandwiched by the holding members 23a and 23b.
- the members may be folded, for example, on the side of the holding member 23b, and held by the holding members 23a and 23b in the same manner as in the first embodiment.
- the film member 22 can be held firmly between the pair of holding members 23a and 23b in the transmission main body 21. Therefore, the film member 22 is the holding members 23a and 23b. Thus, it is possible to easily form the transmission main body 21 in a state in which the membrane member 22 is free from wrinkles and sags while preventing a situation in which the film member 22 is peeled off.
- the holding members 23a and 23b may have a shape other than a substantially annular shape in front view.
- FIG. 1 A third embodiment of the present invention is shown in FIG. 1
- a transmission main body 31 is provided in place of the transmission main body 11 of the first embodiment and the transmission main body 21 of the second embodiment.
- the transmission main body 31 includes a membrane member 32 and a pair of holding members 33a and 33b.
- the film member 32 has the same configuration as the film member 22 of the second embodiment.
- the holding members 33 a and 33 b are formed in an annular frame shape and hold the film member 32 in the same manner as the holding members 23 a and 23 b of the second embodiment. However, it differs from the holding members 23a and 23b of the second embodiment in that a bent portion 34b is provided in the vicinity of the peripheral edge of the holding member 33b. When the holding members 33a and 33b are stacked, the bent portion 34b is formed to hold the outer edge portion of the holding member 33a.
- the other configuration is the same as that of the first embodiment.
- the film member 32 is disposed between the pair of holding members 33a and 33b in the process of manufacturing the transmitter body 31. Then, as shown in FIG. 8B, the film member 32 is sandwiched between the pair of holding members 33a and 33b, and the bent portion 34b is bent inward (in the upper direction as shown by the arrow in FIG. 8A) See the enlarged view of 8B). In this state, by heating the film member 32, the film member 32 is tensioned, and the film member 32 is held by the holding members 33a and 33b without wrinkles and sags.
- the film member 32 can be held between the pair of holding members 33a and 33b in the transmission main body 31, and can be bent and firmly fixed by the bending portions 34a and 34b.
- the transmission main body 31 in a state in which the film member 32 is free from wrinkles and slack can be easily formed while preventing the film member 32 from peeling off from the holding members 33a and 33b more reliably.
- the holding members 23a and 23b may have a shape other than a substantially annular shape in front view.
- FIG. 9 shows a fourth embodiment of the present invention.
- a transmission main body 41 is provided in place of the transmission main bodies 11, 21, and 31 of the first to third embodiments.
- the transmitter body 41 includes a membrane member 42 and a pair of holding members 43a and 43b.
- the film member 42 has the same configuration as the film member 22 of the second embodiment.
- the holding members 43a and 43b are formed in an annular frame shape and hold the film member 42, similarly to the holding members 23a and 23b of the second embodiment. However, it differs from the holding member 23b of the second embodiment in that a caulking convex portion 44 is provided on the inner side (upper side in FIG. 9) of the holding member 43b.
- the other configuration is the same as that of the first embodiment.
- the film member 42 in the process of manufacturing the transmitter body 41, as shown in FIG. 9, the film member 42 is disposed between the pair of holding members 43a and 43b. Then, the film member 42 is held between the pair of holding members 43a and 43b (see the state of "before crimping" in the enlarged view of FIG. 9). Then, in this state, caulking the vicinity of the peripheral portions of the holding members 43a and 43b with the film member 42 interposed therebetween, the peripheral portion of the film member 42 and the peripheral portion of the holding member 43b at the peripheral portion of the holding member 43a In the enclosed state (see the state of “after caulking” in the enlarged view of FIG. 9). In this state, the membrane member 42 is in a tense state. In this state, by heating the film member 42, the film member 42 is strained, and the film member 42 is held by the holding members 43a and 43b without wrinkles and slack.
- the caulking convex portion 44 gives a certain degree of tension to the film member 42.
- the film member 42 can be held firmly by the holding members 43a and 43b, the film member 42 can be more reliably prevented from peeling off the holding members 43a and 43b.
- the transmission main body 41 in which the member 42 is in a state without wrinkles and slack can be easily formed.
- the holding members 23a and 23b may have a shape other than a substantially annular shape in front view.
- FIG. 10 shows a fifth embodiment of the present invention.
- a transmission main body 51 is provided in place of the transmission main bodies 11, 21, 31, 41 of the first to fourth embodiments.
- the transmission main body 51 includes a membrane member 52 and a pair of holding members 53a and 53b.
- the film member 52 has the same configuration as the film member 22 of the second embodiment.
- the holding members 53a and 53b are formed in an annular frame shape and hold the film member 52, similarly to the holding members 23a and 23b of the second embodiment.
- the fitting convex portion 54a is provided on the inner side (lower side in FIG. 10) of the holding member 53a
- the fitting concave portion 54b is provided on the inner side (upper side in FIG. 10) of the holding member 53b. This differs from the holding members 23a and 23b of the second embodiment.
- the fitting projection 54 a and the fitting recess 54 b are provided at overlapping positions when the holding members 53 a and 53 b are stacked.
- the other configuration is the same as that of the first embodiment.
- the film member 52 is disposed between the pair of holding members 53a and 53b in the process of manufacturing the transmission body 51. Then, the film member 52 is sandwiched by the pair of holding members 53a and 53b. At this time, the fitting convex portion 54a of the holding member 53a and the fitting concave portion 54b are fitted and fixed with the film member 52 interposed therebetween. In this state, by heating the film member 52, the film member 52 is tensioned, and the film member 52 is held by the holding members 53a and 53b without wrinkles and slack.
- the membrane member 52 is engaged with the pair of holding members 53a and 53b by fitting the fitting projection 54a and the fitting recess 54b to each other. Since it can be firmly fixed, the transmission main body in which the film member 52 is in a state without wrinkles and slack while more reliably preventing the film member 52 from peeling off from the holding members 53a and 53b. 51 can be easily formed.
- the holding members 23a and 23b may have a shape other than a substantially annular shape in front view.
- the film member 12 is placed on the holding member 13 or the film members 22, 32, 42 and 42 are holding members 23a and 23b, 33a and 33b, 43a and 43b, 53a and 53b.
- the film members 12, 22, 32, 42, 52 are heated and contracted after being held between them.
- the membrane member 12 and the holding member 13 the membrane member 22 and the holding members 23a and 23b, the membrane member 32 and the holding members 33a and 33b, the membrane member 42 and the holding members 43a and 43b, the membrane member 52 and the holding
- Each of the members 53a and 53b is formed of a thermoplastic member such as polypropylene, and the film member 12 and the holding member 13, the film member 22 and the holding members 23a and 23b, the film member 32 and the holding members 33a and 33b, the film member 42 and The holding members 43a and 43b, the film member 52, and the holding members 53a and 53b may be adhered by welder welding or the like, and then the film members 12, 22, 32, 42, and 52 may be heated and contracted. .
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Abstract
Description
図1乃至図6に、この発明の実施の形態1を示す。
図7に、この発明の実施の形態2を示す。
図8に、この発明の実施の形態3を示す。
図9に、この発明の実施の形態4を示す。
図10に、この発明の実施の形態5を示す。
11,21,31,41,51・・・伝声器本体
12,22,32,42,52・・・膜部材
13,23a,23b,33a,33b,43a,43b,53a,53b・・・保持部材
100・・・装着者
Claims (3)
- 音声を一方側から他方側へと伝播可能な膜部材と、該膜部材の少なくとも一部を保持する保持部材とを備えた、装着者により発話された音声を外部に伝達させる伝声器であって、
前記膜部材は熱収縮性の材質にて形成され、
前記膜部材が前記保持部材に保持された状態で、前記膜部材が加熱されて収縮されることにより、前記膜部材の略全面に緊張が与えられた状態で前記保持部材に保持されるように構成されたことを特徴とする伝声器。 - 前記保持部材は所定形状の枠型に形成されて、前記保持部材の内側に形成された開口部を前記膜部材で塞ぐように構成されたことを特徴とする請求項1に記載の伝声器。
- 前記膜部材の加熱温度又は加熱時間の少なくとも一方を制御することによって、該膜部材に与えられる緊張の大きさが所定値に調整されたことを特徴とする請求項1又は2に記載の伝声器。
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CN201480009055.7A CN105073205B (zh) | 2013-02-15 | 2014-02-12 | 传声器 |
MYPI2015702612A MY184392A (en) | 2013-02-15 | 2014-02-12 | Voice transmitter |
US14/767,473 US9592410B2 (en) | 2013-02-15 | 2014-02-12 | Voice transmitter |
KR1020157020519A KR102039533B1 (ko) | 2013-02-15 | 2014-02-12 | 전성기 |
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JP2013-027642 | 2013-02-15 | ||
JP2013027642 | 2013-02-15 | ||
JP2014019979A JP5759032B2 (ja) | 2013-02-15 | 2014-02-05 | 伝声器 |
JP2014-019979 | 2014-02-05 |
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PCT/JP2014/053139 WO2014126083A1 (ja) | 2013-02-15 | 2014-02-12 | 伝声器 |
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JP (1) | JP5759032B2 (ja) |
KR (1) | KR102039533B1 (ja) |
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CN108367182A (zh) * | 2015-10-22 | 2018-08-03 | 斯科特科技公司 | 带有语音传输特征部的呼吸器面罩 |
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KR101953988B1 (ko) * | 2017-08-31 | 2019-03-04 | 프랭크 자우어 | 소리를 전달할 수 있는 통기성 마스크 |
GB201808993D0 (en) * | 2018-06-01 | 2018-07-18 | Avon Polymer Prod Ltd | Speech diaphram module for a respirator mask |
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US20160001109A1 (en) | 2016-01-07 |
KR102039533B1 (ko) | 2019-11-01 |
JP2014176634A (ja) | 2014-09-25 |
JP5759032B2 (ja) | 2015-08-05 |
MY184392A (en) | 2021-04-01 |
US9592410B2 (en) | 2017-03-14 |
KR20150120343A (ko) | 2015-10-27 |
CN105073205B (zh) | 2017-12-08 |
CN105073205A (zh) | 2015-11-18 |
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