JP4860285B2 - Drug atomizer - Google Patents

Description

  The present invention relates to a drug atomizer that atomizes drugs such as fragrances.

  Conventionally, an ultrasonic atomizer 801 as shown in FIG. 5 is known as a chemical atomizer for atomizing chemicals such as deodorants, fragrances, insect repellents, and insecticides (for example, Patent Document 1). ).

  The ultrasonic spraying device 801 includes a liquid storage tank 812 that stores a liquid medicine 811, and the liquid storage tank 812 is provided with a fall prevention guide 813. A spring 814 is accommodated in the fall prevention guide 813, and a guide pipe 815 is inserted on the spring 814. A liquid retaining material 816 is accommodated in the guide pipe 815, and a liquid supply portion 817 set at the upper end of the liquid retaining material 816 is in contact with the diaphragm 818. The vibration plate 818 is supported by the piezoelectric vibrator 819 and configured to transmit vibration from the piezoelectric vibrator 819.

A plurality of small holes are provided in the vibration plate 818 in which the liquid supply portion 817 of the liquid retaining material 816 is pressed by the urging force of the spring 814, and the vibration plate 818 is formed by the piezoelectric vibrator 819. By vibrating, the medicine 811 sucked up by the liquid retaining material 816 can be atomized through a small hole of the vibration plate 818.
JP-A-6-320083

  However, such a conventional ultrasonic spraying device 801 is configured to push up the liquid retaining material 816 by a spring 814 because of the structure in which the liquid retaining material 816 that has sucked up the medicine 811 is pressed against the diaphragm 818. The spring 814 is disposed between the liquid retaining material 816 and the bottom surface 821 of the liquid storage tank 812.

  For this reason, when the medicine 811 in the liquid storage tank 812 decreases and the liquid level 831 becomes lower than the liquid retaining material 816 urged by the spring 814, the medicine 811 is sucked up by the liquid retaining material 816. Can not be.

  Then, although the medicine 811 remains in the liquid storage tank 812, the medicine 811 is not atomized, and there is a problem that the medicine 811 at the bottom of the liquid storage tank 812 is wasted.

  This invention is made | formed in view of such a conventional subject, and it aims at providing the chemical | medical agent atomizer which can use the stored chemical | medical agent without waste.

In order to solve the above-mentioned problem, in the medicine atomizer according to claim 1 of the present invention, the liquid supply part of the core material extending from the container body is brought into contact with the diaphragm, and the core material is removed from the container body. in drug atomizer for atomizing a drug sucked into the liquid supply portion with the vibration of the vibrating plate, set the diaphragm at the top cover downward movement is allowed to cover the upper portion of said container body, The diaphragm was placed on the upper part of the core member extended from the container body, and the weight of the upper cover was added to the liquid supply part of the core member through the diaphragm.

  That is, the vibration plate that contacts the liquid supply portion of the core member extending from the container body is provided on the upper cover that covers the upper portion of the container body, and the weight of the upper cover is determined via the vibration plate. It is added to the liquid supply part of the core material.

  For this reason, the weight of the upper cover is added to the vibration plate provided in the upper cover, and the vibration plate is separated from the container body by gravity including the weight of the vibration plate and the weight of the upper cover. The liquid supply part of the extended core material is urged.

  Further, in the medicine atomizer according to claim 2, the container-like lower cover opened upward for accommodating the container body, and the container-like upper cover opened downward attached to the lower cover, Positioning the diaphragm provided on the upper cover in a state where the peripheral wall of the upper cover is fitted to the peripheral wall of the lower cover on the upper part of the core member of the container body accommodated in the lower cover, The upper cover was allowed to move downward with respect to the lower cover in a state where the diaphragm of the upper cover was in contact with the liquid supply portion of the core member.

  That is, when the container body is housed in the lower cover and the peripheral wall of the upper cover is fitted and attached to the peripheral wall of the lower cover, the diaphragm provided on the upper cover is attached to the lower cover. The container body is positioned above the core material of the container body.

  At this time, the vibration of the upper cover is allowed to move downward of the upper cover with respect to the lower cover in a state where the diaphragm of the upper cover is in contact with the liquid supply portion of the core material. In a state where the weight of the upper cover is added to the plate, the diaphragm is fed from the container body by gravity consisting of its own weight and the weight of the upper cover. Be energized by.

Further, in the medicine atomizer according to claim 3 , the core material is constituted by a member having elasticity, and the core material is brought into contact with the bottom surface of the container body and the core material is bent. And placed between the bottom surface and the diaphragm.

  That is, the core member is disposed between the bottom surface of the container body and the diaphragm in a bent state while the base end is in contact with the bottom surface of the container body.

  At this time, the core material is composed of an elastic member, and a restoring force is generated in the core material. And this restoring force acts in the direction which expands the said core material, and acts as the urging | biasing force which urges | biases the liquid supply part set to the front-end | tip part to the said diaphragm.

  Thereby, the liquid supply portion of the core member extending from the container body is urged by the diaphragm.

  As described above, in the medicine atomizer according to claim 1 of the present invention, the weight of the upper cover is added to the diaphragm provided on the upper cover, so that the diaphragm is subjected to its own weight. And the weight of the upper cover can be biased to the liquid supply portion of the core member extended from the container body by gravity.

  Thereby, the liquid supply part of the core material can be pressed against the diaphragm without providing a spring or the like between the core material and the bottom surface of the container body. For this reason, even when the liquid level of the medicine stored in the container body is lowered as compared with the conventional case where the core material is arranged away from the bottom surface of the container body, the medicine is sucked up by the core material. Can be performed reliably.

  Therefore, the medicine stored in the container can be used without waste until the end.

  And since the spring for urging the said core material is abolished and the said problem can be solved with simple structure, cost reduction can be achieved.

  In the medicine atomizer according to claim 2, the container body is provided in the upper cover in a state where the container body is accommodated in the lower cover and the peripheral wall of the upper cover is fitted and attached to the peripheral wall of the lower cover. Further, the diaphragm can be positioned on an upper portion of the core member of the container body accommodated in the lower cover.

  At this time, the upper cover is allowed to move downward with respect to the lower cover in a state where the diaphragm of the upper cover is in contact with the liquid supply portion of the core member, and the vibration provided on the upper cover. In the state where the weight of the upper cover is added to the plate, the liquid supply of the core material that is extended from the container body by the gravity composed of the weight of the vibration plate and the weight of the upper cover. It is possible to positively bias the part.

Further, in the medicine atomizer according to claim 3 , the core material is extended in the extending direction by being disposed between the bottom surface of the container body and the vibration plate in a state where the core material sucking up the medicine in the container body is bent. The restoring force acting in the direction in which the liquid is supplied can be used as an urging force that presses the liquid supply portion set at the tip portion against the diaphragm.

  For this reason, the liquid supply portion at the tip of the core material can be pressed against the diaphragm without providing a spring or the like between the core material and the bottom surface of the container body. This eliminates the need for a separate member such as a spring, thereby reducing the cost.

  And in the state which bent the said core material, the base end of the said core material can be maintained in the state contact | abutted to the bottom face of the said container body. For this reason, even when the liquid level of the medicine stored in the container body is lowered as compared with the conventional case where the core material is arranged away from the bottom surface of the container body, the medicine is sucked up by the core material. It can be done reliably.

  Therefore, the medicine stored in the container can be used without waste until the end.

  (First embodiment)

  A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a drug atomizer 1 according to the present embodiment. The drug atomizer 1 atomizes a liquid drug 2 such as a deodorant, a fragrance, an insect repellent, and an insecticide. It is a device to do.

  The atomizer body 11 of the drug atomizer 1 is composed of a container-shaped lower cover 12 having an upper surface opened and a container-shaped upper cover 13 having an opened lower surface. The upper peripheral wall 14 of the upper cover 13 is formed to have a larger diameter than the lower peripheral wall 15 of the lower cover 12, and the upper peripheral wall 14 of the upper cover 13 is externally attached to the lower peripheral wall 15 of the lower cover 12. It is comprised so that it can fit in the state fitted.

  An engagement portion 21 that protrudes outward is provided in the middle of the lower peripheral wall 15 of the lower cover 12, and protrudes inward at the lower edge portion of the upper peripheral wall 14 of the upper cover 13. An engaged portion 22 is provided. The engaged portion 22 is disposed at a lower portion of the engaging portion 21 over the engaging portion 21 provided on the lower cover 12 in a state where the upper cover 13 is fitted to the lower cover 12. The upper cover 13 is configured to be detachably attached to the lower cover 12 when the engaging portion 21 and the engaged portion 22 are engaged with each other. . Thereby, the upper cover 13 is configured to be restricted from moving upward relative to the lower cover, while being allowed to move downward.

  On the top surface 31 of the upper cover 13, a spray port 32 is formed in the center, and from the upper peripheral wall 14 of the upper cover 13, support pieces 33 extending along the top surface 31, 33 extends toward the spray port 32. Between the support pieces 33, 33 and the top surface 31, the peripheral portion of the atomizing device 34 is fixed in a sandwiched state, and the atomizing device 34 is disposed below the spray port 32. Has been.

  That is, as shown in FIG. 2, the atomizing device 34 is sandwiched between the top surface 31 and the support piece 33 via support bodies 41, 41 formed in a ring shape with plastic, rubber or the like. , A circular ring-shaped piezoelectric vibrator 42 supported by the supports 41, a circular plate-shaped diaphragm 43 supported by the piezoelectric vibrator 42, and a drive voltage is supplied to the piezoelectric vibrator 42. It is comprised by the control part outside a figure.

  The piezoelectric vibrator 42 is configured around a circular ring-shaped piezoelectric element 51, and a circular ring plate-shaped first electrode 52 is laminated on the upper surface of the piezoelectric element 51. In addition, a circular ring plate-like second electrode 53 is laminated on the lower surface of the piezoelectric element 51, and when the drive voltage from the control unit is supplied to the first and second electrodes 52, 53. The piezoelectric element 51 is configured to vibrate.

  The peripheral portion of the vibration plate 43 is bonded to the inner edge portion of the second electrode 53 of the piezoelectric element 51 with an adhesive, and vibration from the piezoelectric element 51 is transmitted to vibrate the vibration plate 43. It is configured as follows. The vibration plate 43 is configured to close the opening at the center of the piezoelectric vibrator 42 formed in a ring shape and to be disposed below the spray port 32 of the upper cover 13. The diaphragm 43 is provided with a plurality of small holes penetrating vertically.

  As shown in FIG. 1, the lower cover 12 is configured so that a medicine container 61 as a container body can be exchanged. The medicine container 61 has a bottom surface of the lower cover 12 as a reference surface. The height position relative to the upper cover 13 covering the upper part of the medicine container 61 is positioned as 66, and the upper peripheral wall 14 of the upper cover 13 is fitted to the lower peripheral wall 15 of the lower cover 12. The fixed position of the medicine container 61 with respect to the upper cover 13 is determined.

  In the medicine container 61, the medicine 2 is accommodated, and an opening provided in the neck 62 of the medicine container 61 is closed by a lid 63. A communication hole 64 communicating with the inside is provided in the central portion of the lid portion 63, and a core member 65 is inserted into the communication hole 64. The core member 65 is guided by the communication hole 64 and is maintained in a vertically upright state. Accordingly, the diaphragm 43 provided on the upper cover 13 is accommodated in the lower cover 12 in a state where the upper peripheral wall 14 of the upper cover 13 is fitted to the lower peripheral wall 15 of the lower cover 12. The medicine container 61 is configured to be positioned on the upper portion of the core member 65.

  The core material 65 is formed into a rod shape by converging and bonding fibers such as polyester with an adhesive or the like, and the core material 65 is set to a predetermined rigidity. The core member 65 is formed with a capillary for sucking up the liquid, and is configured so that the medicine 2 in the medicine container 61 can be sucked up to the upper end of the core member 65.

  A liquid supply portion 71 having a larger diameter than the core material 65 is provided at the upper end portion of the core material 65. The liquid supply unit 71 is also formed by converging and bonding fibers such as polyester with an adhesive or the like, and is configured by a porous body formed in a columnar shape. Accordingly, the medicine 2 sucked up by the core member 65 is further sucked up and held in the liquid supply unit 71.

  The core member 65 stands vertically and the liquid supply portion 71 provided at the upper end portion is provided on the upper cover 13 in a state where the lower end of the core member 65 is in contact with the bottom surface 81 of the drug container 61. The length of the upper cover 13 is set so as to be in contact with the lower surface of the vibration plate 43 of the atomizing device 34, and the liquid supply portion 71 of the core member 65 is in contact with the vibration plate 43. The margin 85 is set so that the lower cover 12 can move downward with respect to the lower cover 12.

  Further, the weight of the upper cover 13 provided with the diaphragm 43 is added to the diaphragm 43, and the weight of the upper cover 13 and the own weight of the diaphragm 43 pass through the diaphragm 43. In addition, it is configured to be added to the liquid supply part 71 of the core member 65.

  The liquid supply portion 71 of the core member 65 is sucked up by the core member 65 by vibrating the vibration plate 43 in a state where the liquid supply portion 71 is in pressure contact with the lower surface of the vibration plate 43 of the atomizer 34. The medicine 2 held by the portion 71 is configured to be atomized through the small hole of the vibration plate 43.

  In the present embodiment according to the above configuration, the vibration plate 43 that contacts the liquid supply portion 71 of the core member 65 extending from the drug container 61 is provided on the upper cover 13 that covers the upper part of the drug container 61. The weight of the upper cover 13 is applied to the liquid supply portion 71 of the core member 65 through the vibration plate 43. For this reason, the weight of the upper cover 13 is added to the diaphragm 43 provided on the upper cover 13, and the diaphragm 43 is composed of the weight of the diaphragm 43 and the weight of the upper cover 13. The liquid supply portion 71 of the core member 65 can be urged by gravity.

  Thereby, the liquid supply portion 71 of the core material 65 can be pressed against the diaphragm 43 without providing a spring or the like between the core material 65 and the bottom surface 81 of the medicine container 61, and the core material 65. Even when the liquid level 91 of the medicine 2 stored in the medicine container 61 is lowered compared to the conventional case where the medicine 2 is disposed away from the bottom surface 81 of the medicine container 61, the medicine 2 by the core material 65 is used. Can be reliably sucked up.

  Therefore, the medicine 2 accommodated in the medicine container 61 can be used without waste until the end.

  Moreover, since the spring for urging the core member 65 can be eliminated, the cost can be reduced.

  Further, the medicine container 61 is accommodated in the lower cover 12, and is provided on the upper cover 13 in a state where the upper peripheral wall 14 of the upper cover 13 is fitted and attached to the lower peripheral wall 15 of the lower cover 12. Further, the diaphragm 43 can be positioned above the core member 65 of the medicine container 61 accommodated in the lower cover 12.

At this time, the upper cover 13 is allowed to move downward with respect to the lower cover 12 in a state where the diaphragm 43 of the upper cover 13 is in contact with the liquid supply portion 71 of the core member 65. In the state where the weight of the upper cover 13 is added to the vibration plate 43 provided on the vibration plate 13, the vibration plate 43 can be reliably urged to the liquid supply portion 71 of the core member 65.

  (Second Embodiment)

  FIG. 3 is a diagram showing a second embodiment of the present invention. The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

  That is, the atomizer body 11 of the chemical atomizer 101 that atomizes the liquid chemical 2 such as deodorant, fragrance, insect repellent, insecticide and the like includes a container-like lower cover 12 having an upper surface opened, and a lower surface. Is formed in a case shape by a container-shaped upper cover 13 opened. The upper peripheral wall 14 of the upper cover 13 is formed to have a larger diameter than the lower peripheral wall 15 of the lower cover 12, and the upper peripheral wall 14 of the upper cover 13 is externally attached to the lower peripheral wall 15 of the lower cover 12. It is comprised so that it can fit in the state fitted.

  An engaging portion 21 that protrudes outward is provided at an upper end portion of the lower peripheral wall 15 of the lower cover 12, and protrudes inward at a lower edge portion of the upper peripheral wall 14 of the upper cover 13. An engaged portion 22 is provided. The engaged portion 22 is disposed at a lower portion of the engaging portion 21 over the engaging portion 21 provided on the lower cover 12 in a state where the upper cover 13 is fitted to the lower cover 12. The upper cover 13 is configured to be detachably attached to the lower cover 12 when the engaging portion 21 and the engaged portion 22 are engaged with each other. . Thus, the upper cover 13 is configured to be restricted from moving upward with respect to the lower cover, but allowed to move downward.

  On the top surface 31 of the upper cover 13, a spray port 32 is formed in the center, and from the upper peripheral wall 14 of the upper cover 13, support pieces 33 extending along the top surface 31, 33 extends toward the spray port 32. Between the support pieces 33, 33 and the top surface 31, the peripheral portion of the atomizing device 34 is fixed in a sandwiched state, and the atomizing device 34 is disposed below the spray port 32. Has been.

  That is, as shown in FIG. 2 used in the description of the first embodiment, the atomizing device 34 is connected to the ceiling via the supports 41, 41 formed in a ring shape with plastic, rubber, or the like. A circular ring-shaped piezoelectric vibrator 42 sandwiched between the surface 31 and the support piece 33 and supported by the supports 41, and a circular plate-like diaphragm 43 supported by the piezoelectric vibrator 42; And a control unit (not shown) for supplying a driving voltage to the piezoelectric vibrator 42.

  The piezoelectric vibrator 42 is configured around a circular ring-shaped piezoelectric element 51, and a circular ring plate-shaped first electrode 52 is laminated on the upper surface of the piezoelectric element 51. In addition, a circular ring plate-like second electrode 53 is laminated on the lower surface of the piezoelectric element 51, and when the drive voltage from the control unit is supplied to the first and second electrodes 52, 53. The piezoelectric element 51 is configured to vibrate.

  The peripheral portion of the vibration plate 43 is bonded to the inner edge portion of the second electrode 53 of the piezoelectric element 51 with an adhesive, and vibration from the piezoelectric element 51 is transmitted to vibrate the vibration plate 43. It is configured as follows. The vibration plate 43 is configured to close the opening at the center of the piezoelectric vibrator 42 formed in a ring shape and to be disposed below the spray port 32 of the upper cover 13. The diaphragm 43 is provided with a plurality of small holes penetrating vertically.

  As shown in FIG. 3, the lower cover 12 is configured so that a medicine container 61 as a container body can be exchanged, and the upper peripheral wall 14 of the upper cover 13 is connected to the lower cover 12. The medicine container 61 can be fixed with respect to the upper cover 13 while being fitted to the lower peripheral wall 15. In addition, a coil spring 111 as an urging means is disposed between the medicine container 61 and a reference surface 66 formed by the bottom surface of the lower cover 12, and the medicine container 61 is attached upward. It is energized.

  In the medicine container 61, the medicine 2 is accommodated, and an opening provided in the neck 62 of the medicine container 61 is closed by a lid 63. A communication hole 64 communicating with the inside is provided in the central portion of the lid portion 63, and a core member 65 is inserted into the communication hole 64. The core member 65 is guided by the communication hole 64 and is maintained in a vertically upright state. Accordingly, the diaphragm 43 provided on the upper cover 13 is accommodated in the lower cover 12 in a state where the upper peripheral wall 14 of the upper cover 13 is fitted to the lower peripheral wall 15 of the lower cover 12. The medicine container 61 is configured to be positioned on the upper portion of the core member 65.

  The core material 65 is formed into a rod shape by converging and bonding fibers such as polyester with an adhesive or the like, and the core material 65 is set to a predetermined rigidity. The core member 65 is formed with a capillary for sucking up the liquid, and is configured so that the medicine 2 in the medicine container 61 can be sucked up to the upper end of the core member 65.

  A liquid supply portion 71 having a larger diameter than the core material 65 is provided at the upper end portion of the core material 65. The liquid supply unit 71 is also formed by converging and bonding fibers such as polyester with an adhesive or the like, and is configured by a porous body formed in a columnar shape. Accordingly, the medicine 2 sucked up by the core member 65 is further sucked up and held in the liquid supply unit 71.

  The core member 65 stands vertically and the liquid supply portion 71 provided at the upper end portion is provided on the upper cover 13 in a state where the lower end of the core member 65 is in contact with the bottom surface 81 of the drug container 61. The medicine container 61 is configured so as to contact the lower surface of the vibration plate 43 of the atomizer 34, and the liquid supply portion 71 of the core member 65 is in contact with the vibration plate 43. By being biased by the coil spring 111, the liquid supply portion 71 of the core member 65 is biased toward the diaphragm 43 by this biasing force.

  Note that the weight of the upper cover 13 provided with the vibration plate 43 is added to the vibration plate 43, and even if the urging force by the coil spring 111 is temporarily reduced, the upper cover 13 is not provided. And the own weight of the diaphragm 43 are added to the liquid supply part 71 of the core member 65 through the diaphragm 43.

  The liquid supply portion 71 of the core member 65 is sucked up by the core member 65 by vibrating the vibration plate 43 in a state where the liquid supply portion 71 is in pressure contact with the lower surface of the vibration plate 43 of the atomizer 34. The medicine 2 held by the portion 71 is configured to be atomized through the small hole of the vibration plate 43.

  In the present embodiment according to the above configuration, the vibration plate 43 that contacts the liquid supply portion 71 of the core member 65 extending from the drug container 61 is provided on the upper cover 13 that covers the upper part of the drug container 61. The weight of the upper cover 13 is applied to the liquid supply portion 71 of the core member 65 through the vibration plate 43. For this reason, the weight of the upper cover 13 is added to the diaphragm 43 provided on the upper cover 13, and the diaphragm 43 is composed of the weight of the diaphragm 43 and the weight of the upper cover 13. The liquid supply portion 71 of the core member 65 can be urged by gravity.

  Thereby, the effect similar to 1st Embodiment can be acquired.

  In the present embodiment, the medicine container 61 accommodated in the lower cover 12 of the atomizer body 11 is urged upward by the urging means comprising the coil spring 111. The liquid supply portion 71 of the core member 65 extending from the drug container 61 is urged toward the diaphragm 43 by the urging force of the urging means.

  Accordingly, the liquid supply portion 71 of the core member 65 extending from the drug container 61 is biased toward the vibration plate 43 by the biasing force of the biasing means that biases the drug container 61. The liquid supply portion 71 of the core material 65 can be pressed against the diaphragm 43 without providing a spring or the like between the core material 65 and the bottom surface 81 of the medicine container 61.

  For this reason, even when the liquid level 91 of the medicine 2 stored in the medicine container 61 is lowered as compared with the conventional case where the core material 65 is disposed away from the bottom surface 81 of the medicine container 61, The medicine 2 can be reliably sucked up by the core member 65.

  Therefore, the medicine 2 accommodated in the medicine container 61 can be used without waste until the end.

  The urging means is disposed outside the drug container 61. For this reason, on the structure where the spring for urging the core member 65 is arranged in the medicine container 61, the material of the spring has to be determined according to the medicine 2 accommodated in the medicine container 61. Compared to the above, the material of the urging means can be easily selected.

  Further, the vibration plate 43 is provided on the top side of the atomizer body 11, and the urging means for urging the drug container 61 toward the top side on the bottom side of the atomizer body 11. In the state in which the medicine container 61 is accommodated in the atomizer body 11, the medicine container 61 can be urged toward the top surface, and the core member 65 extending from the medicine container 61 is provided. The liquid supply part 71 can be urged and pressed against the diaphragm 43 provided on the top side.

  The biasing means provided on the bottom side of the atomizer body 11 is replaced by a coil spring 111 provided between the reference surface 66 formed by the bottom surface of the atomizer body 11 and the drug container 61. With this configuration, the drug container 61 can be urged and pressed against the diaphragm 43 provided on the top surface side by the coil spring 111.

Thereby, simplification of a structure can be achieved.

  (Third embodiment)

  FIG. 4 is a diagram showing a third embodiment of the present invention, and the same or equivalent parts as those in the second embodiment will be described with the same reference numerals.

  That is, the atomizer body 11 of the chemical atomizer 1201 that atomizes the liquid chemical 2 such as deodorant, fragrance, insect repellent, insecticide and the like includes a container-like lower cover 12 having an upper surface opened, and a lower surface. Is formed in a case shape by a container-shaped upper cover 13 opened. The upper peripheral wall 14 of the upper cover 13 is formed to have a larger diameter than the lower peripheral wall 15 of the lower cover 12, and the upper peripheral wall 14 of the upper cover 13 is externally attached to the lower peripheral wall 15 of the lower cover 12. It is comprised so that it can fit in the state fitted.

  An engaging portion 21 that protrudes outward is provided at an upper end portion of the lower peripheral wall 15 of the lower cover 12, and protrudes inward at a lower edge portion of the upper peripheral wall 14 of the upper cover 13. An engaged portion 22 is provided. The engaged portion 22 is disposed at a lower portion of the engaging portion 21 over the engaging portion 21 provided on the lower cover 12 in a state where the upper cover 13 is fitted to the lower cover 12. The upper cover 13 is configured to be detachably attached to the lower cover 12 when the engaging portion 21 and the engaged portion 22 are engaged with each other. . Thus, the upper cover 13 is configured to be restricted from moving upward with respect to the lower cover, but allowed to move downward.

  On the top surface 31 of the upper cover 13, a spray port 32 is formed in the center, and from the upper peripheral wall 14 of the upper cover 13, support pieces 33 extending along the top surface 31, 33 extends toward the spray port 32. Between the support pieces 33, 33 and the top surface 31, the peripheral portion of the atomizing device 34 is fixed in a sandwiched state, and the atomizing device 34 is disposed below the spray port 32. Has been.

  That is, as shown in FIG. 2 used in the description of the first embodiment, the atomizing device 34 is connected to the ceiling via the supports 41, 41 formed in a ring shape with plastic, rubber, or the like. A circular ring-shaped piezoelectric vibrator 42 sandwiched between the surface 31 and the support piece 33 and supported by the supports 41, and a circular plate-like diaphragm 43 supported by the piezoelectric vibrator 42; And a control unit (not shown) for supplying a driving voltage to the piezoelectric vibrator 42.

  The piezoelectric vibrator 42 is configured around a circular ring-shaped piezoelectric element 51, and a circular ring plate-shaped first electrode 52 is laminated on the upper surface of the piezoelectric element 51. In addition, a circular ring plate-like second electrode 53 is laminated on the lower surface of the piezoelectric element 51, and when the drive voltage from the control unit is supplied to the first and second electrodes 52, 53. The piezoelectric element 51 is configured to vibrate.

  The peripheral portion of the vibration plate 43 is bonded to the inner edge portion of the second electrode 53 of the piezoelectric element 51 with an adhesive, and vibration from the piezoelectric element 51 is transmitted to vibrate the vibration plate 43. It is configured as follows. The vibration plate 43 is configured to close the opening at the center of the piezoelectric vibrator 42 formed in a ring shape and to be disposed below the spray port 32 of the upper cover 13. The diaphragm 43 is provided with a plurality of small holes penetrating vertically.

  As shown in FIG. 4, the lower cover 12 is configured so that a medicine container 61 as a container body can be exchanged, and the upper peripheral wall 14 of the upper cover 13 is connected to the lower cover 12. The medicine container 61 can be fixed with respect to the upper cover 13 while being fitted to the lower peripheral wall 15. In addition, a coil spring 111 as an urging means is disposed between the medicine container 61 and a reference surface 66 formed by the bottom surface of the lower cover 12, and the medicine container 61 is attached upward. It is energized.

  In the medicine container 61, the medicine 2 is accommodated, and an opening provided in the neck 62 of the medicine container 61 is closed by a lid 63. A communication hole 64 communicating with the inside is provided in the central portion of the lid portion 63, and a core member 65 is inserted into the communication hole 64. The core material 65 is guided by the communication hole 64, and the core material 65 is vertically moved by the communication hole 64 in a state where a portion extending from the communication hole 64 extends upward. It is supported so that it can slide.

  Accordingly, the diaphragm 43 provided on the upper cover 13 is accommodated in the lower cover 12 in a state where the upper peripheral wall 14 of the upper cover 13 is fitted to the lower peripheral wall 15 of the lower cover 12. The medicine container 61 is configured to be positioned on the upper portion of the core member 65.

  The core member 65 is formed by extruding a thermoplastic resin such as polyacetal or polypropylene into a thin line shape with a die having a predetermined shape, and the core member 65 has predetermined elasticity and rigidity. Thereby, in the state which curved this core material 65, it is comprised so that the restoring force which returns to linear form may work.

  The core member 65 is formed with a capillary for sucking up the liquid, and is configured to suck the drug 2 in the drug container 61 to the upper end of the core member 65.

  A liquid supply portion 71 having a larger diameter than the core material 65 is provided at the upper end portion of the core material 65. The liquid supply part 71 is formed by converging and bonding fibers such as polyester with an adhesive, and is constituted by a porous body formed in a columnar shape. Accordingly, the medicine 2 sucked up by the core member 65 is further sucked up and held in the liquid supply unit 71.

  Specific examples of the core member 65 include a suction core described in Japanese Utility Model Laid-Open No. 63-166243. In addition, it is possible to use a suction core disclosed in Japanese Utility Model Laid-Open No. 57-128842.

  The length dimension from the lower end of the core member 65 to the upper end of the liquid supply part 71 is set to be longer than the separation distance R from the bottom surface 81 of the drug container 61 to the lower surface of the diaphragm 43 of the atomizer 34. . Accordingly, the lower end of the core member 65 inserted into the medicine container 61 is brought into contact with the bottom surface 81 of the medicine container 61, while the upper end of the liquid supply part 71 of the core member 65 is brought into contact with the atomizing device 34. The core member 65 is configured to bend in a state in which the core member 65 is in contact with the lower surface of the diaphragm 43 and the core member 65 is disposed between the bottom surface 81 and the diaphragm 43. Even when the lower end of the medicine container 61 moves to the corner side of the medicine container 61, the length is set so that the curved state is maintained.

  Note that positioning means for positioning and fixing the lower end of the core member 65 may be provided on the bottom surface 81 of the drug container 61. In this case, the curved state of the core member 65 can be reliably formed.

  The core member 65 is also urged by the coil spring 111 when the liquid container 71 is in contact with the diaphragm 43, and the core member 65 is also urged by the biasing force. The liquid supply unit 71 is urged toward the diaphragm 43.

  Further, the weight of the upper cover 13 provided with the vibration plate 43 is added to the vibration plate 43, the urging force by the coil spring 111 is temporarily reduced, and the curved core member 65 is linear. Even when the restoring force to return to the pressure decreases, the weight of the upper cover 13 and the weight of the vibration plate 43 are applied to the liquid supply portion 71 of the core member 65 through the vibration plate 43. Thus, the pressure contact state between the diaphragm 43 and the liquid supply portion 71 provided on the core member 65 is maintained.

  Then, in a state where the liquid supply portion 71 of the core member 65 is in pressure contact with the lower surface of the diaphragm 43 of the atomizer 34, the diaphragm 43 is vibrated to be sucked up by the core member 65. The medicine 2 held in the liquid supply unit 71 is configured to be atomized through a small hole of the vibration plate 43.

  In the present embodiment according to the above configuration, the vibration plate 43 that contacts the liquid supply portion 71 of the core member 65 extending from the drug container 61 is provided on the upper cover 13 that covers the upper part of the drug container 61. The weight of the upper cover 13 is applied to the liquid supply portion 71 of the core member 65 through the vibration plate 43. For this reason, the weight of the upper cover 13 is added to the diaphragm 43 provided on the upper cover 13, and the diaphragm 43 is composed of the weight of the diaphragm 43 and the weight of the upper cover 13. The liquid supply portion 71 of the core member 65 can be urged by gravity.

  Thereby, the effect similar to 1st Embodiment can be acquired.

  Further, the medicine container 61 accommodated in the lower cover 12 of the atomizer body 11 is urged upward by the urging means comprising the coil spring 111, and the urging force of the urging means causes the medicine to be applied. The liquid supply portion 71 of the core member 65 extending from the container 61 is urged toward the diaphragm 43.

  Accordingly, the liquid supply portion 71 of the core member 65 extending from the drug container 61 is biased toward the vibration plate 43 by the biasing force of the biasing means that biases the drug container 61. The liquid supply portion 71 of the core material 65 can be pressed against the diaphragm 43 without providing a spring or the like between the core material 65 and the bottom surface 81 of the medicine container 61.

  For this reason, even when the liquid level 91 of the medicine 2 stored in the medicine container 61 is lowered as compared with the conventional case where the core material 65 is disposed away from the bottom surface 81 of the medicine container 61, The medicine 2 can be reliably sucked up by the core member 65.

  Therefore, the medicine 2 accommodated in the medicine container 61 can be used without waste until the end.

  The urging means is disposed outside the drug container 61. For this reason, on the structure where the spring for urging the core member 65 is arranged in the medicine container 61, the material of the spring has to be determined according to the medicine 2 accommodated in the medicine container 61. Compared to the above, the material of the urging means can be easily selected.

  Further, the vibration plate 43 is provided on the top side of the atomizer body 11, and the urging means for urging the drug container 61 toward the top side on the bottom side of the atomizer body 11. In the state in which the medicine container 61 is accommodated in the atomizer body 11, the medicine container 61 can be urged toward the top surface, and the core member 65 extending from the medicine container 61 is provided. The liquid supply part 71 can be urged and pressed against the diaphragm 43 provided on the top side.

  The biasing means provided on the bottom side of the atomizer body 11 is replaced by a coil spring 111 provided between the reference surface 66 formed by the bottom surface of the atomizer body 11 and the drug container 61. With this configuration, the drug container 61 can be urged and pressed against the diaphragm 43 provided on the top surface side by the coil spring 111. Thereby, simplification of a structure can be achieved.

  As described above, the same effects as those of the second embodiment can be obtained.

  In addition, in the present embodiment, the core member 65 has a lower end abutted against the bottom surface 81 of the drug container 61 and is bent with the bottom surface 81 of the drug container 61. It is arranged between the plates 43. The core member 65 is made of an elastic member, and the restoring force acting in the direction of extending the core member 65 is applied to the diaphragm 43 by supplying the liquid supply portion 71 at the upper end of the core member 65 to the diaphragm 43. It can be used as a biasing force for biasing.

  Thereby, the state in which the liquid supply portion 71 at the upper end portion of the core member 65 is in pressure contact with the diaphragm 43 can be reliably formed.

  In the second and third embodiments, the coil spring 111 is used as the biasing means. However, the present invention is not limited to this, and plate springs, air springs, sponges, rubbers, and the like are also included. You can use it.

  In the third embodiment, the liquid supply unit 71 is vibrated by the weight of the diaphragm 43 and the upper cover 13, the urging force of the coil spring 111, and the elastic force of the core member 65. Although the case where it press-contacts to the board 43 was mentioned as an example and demonstrated, it is not limited to this.

  For example, as in the second embodiment, in addition to the combination of the weight of the diaphragm 43 and the upper cover 13 and the biasing force of the coil spring 111, the weight of the diaphragm 43 and the upper cover 13 And the elastic force of the core member 65, a combination of the biasing force of the coil spring 111 and the elastic force of the core member 65, or the like.

It is a schematic diagram which shows the 1st Embodiment of this invention. It is an enlarged view which shows the principal part of the embodiment. It is a schematic diagram which shows the 2nd Embodiment of this invention. It is a schematic diagram which shows the 3rd Embodiment of this invention. It is a figure which shows the conventional ultrasonic spraying apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drug atomizer 2 Drug 11 Atomizer main body 12 Lower cover 13 Upper cover 14 Upper peripheral wall 15 Lower peripheral wall 34 Atomizer 43 Vibrating plate 61 Drug container 65 Core material 71 Liquid supply part 81 Bottom surface 101 Drug atomizer 111 Coil Spring 201 chemical atomizer

Claims (3)

In a drug atomizer that abuts a liquid supply part of a core material extending from a container body on a vibration plate, and atomizes the drug sucked from the container body to the liquid supply part of the core material by vibration of the vibration plate ,
The setting movement to the allowed top cover downward with the diaphragm covers the top of the container body only, by placing the diaphragm on the top of the core material extending from said container body, said upper cover Is added to the liquid supply part of the core member through the diaphragm. A container-shaped lower cover that opens upward to accommodate the container body, and a container-shaped upper cover that opens downward and is attached to the lower cover,
Positioning the diaphragm provided on the upper cover in a state where the peripheral wall of the upper cover is fitted to the peripheral wall of the lower cover on the upper part of the core member of the container body accommodated in the lower cover, The drug atomizer according to claim 1, wherein the diaphragm of the upper cover is allowed to move downward of the upper cover relative to the lower cover in a state where the diaphragm is in contact with the liquid supply portion of the core member. The core material is composed of a member having elasticity, and the base end of the core material is in contact with the bottom surface of the container body, and the core material is disposed between the bottom surface and the diaphragm in a bent state. The drug atomizer according to claim 1 or 2 , characterized by the above.

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