JP4909724B2 - Aerosol container injection device - Google Patents

Description

  The present invention relates to an aerosol container injection device, and more particularly to an aerosol container injection device having a mechanism for discharging a residual gas while maintaining an injection state.

  There are known aerosol products, such as deodorants and insecticides, that inject the contents of an aerosol container to the outside from an injection port. In general, aerosol containers used for aerosol products such as deodorants and insecticides are filled with combustible gas compressed as a propellant together with liquid and powdered contents. The valve is opened and closed by an injection device attached to the container, and the contents are injected.

  The spray device for an aerosol container of Patent Document 1 includes a nozzle that is fitted to a stem and has an injection port for contents at the top, and a content that is fitted to the aerosol container and surrounds the outside of the nozzle and is sprayed from the injection port to the upper end. One-touch cap provided with an object opening, and a misuse prevention position provided on the one-touch cap to cover the opening above the nozzle injection port and prevent misuse, and rotated and pressed to the side of the nozzle And a cap combined operation button provided so as to be able to rotate between injection use positions for operating the nozzle to inject the contents, and the upper part of the nozzle with the cap combined operation button provided on the one-touch cap By covering the opening of the nozzle, misuse can be prevented, and the cap-operating button can be ejected through the nozzle by rotating and pushing the button to the side of the nozzle. It has become to so that.

JP 2003-221559 A

  By the way, in the aerosol container, combustible gas for releasing the contents often remains even after the liquid and powdery contents are used up. Since the flammable gas is a gas that may ignite and explode if there is fire, an unexpected situation may occur if the aerosol container is discarded with the flammable gas remaining. For this reason, also in the aerosol container injection device provided with the tilt valve described in Patent Document 1, it is required to discard the aerosol container after exhausting all the residual gas.

  In the case of the aerosol injection device described in Patent Document 1, it is possible to inject the contents by injecting the stem or inclining the stem by tilting the nozzle, but the injection state cannot be maintained. For this reason, it is difficult to reliably discharge the residual gas.

  Therefore, the present invention makes it easy to inject an aerosol container equipped with any type of valve, a push-down valve that opens when the stem is pressed and a tilt valve that opens when the stem tilts. An object of the present invention is to provide an aerosol container injection device that can discharge a residual gas while maintaining the state.

  This invention which can solve the above-mentioned subject is an aerosol container injection device with which an aerosol container is attached, is attached to a valve stem of the aerosol container, and the contents ejected from the valve stem are injected. A nozzle portion provided with an injection port; and a cap main body portion mounted on the aerosol container in a state of being rotatably attached to the nozzle portion, wherein the nozzle portion is relative to the cap main body portion. When rotated and engaged with an engaging portion provided in the cap main body, the valve stem is maintained in an open state, and the injection state of contents from the injection port is maintained.

  According to the above configuration, when the nozzle portion is rotated with respect to the cap body portion and engaged with the engaging portion provided in the cap body portion, the valve stem is kept open. Therefore, the user can maintain the injection state only by rotating the nozzle portion with respect to the cap main body portion, and can easily and reliably discharge the residual gas.

Further, the aerosol container injection device according to the present invention includes the injection maintenance mode in which the injection state of the contents from the injection port is maintained, and the injection when the button operation unit that transmits an external force to the nozzle unit is pressed. It is possible to switch to the normal injection mode where the contents are injected from the mouth,
The nozzle portion is connected to the button operation portion in the normal injection mode, and is disconnected from the button operation portion when shifting to the injection maintenance mode, and is engaged with an engagement portion provided in the cap main body portion. It is characterized by doing.

  According to the said structure, the nozzle part is connected with the button operation part in normal injection mode, and it is comprised so that the connection with a button operation part can be cancelled | released when transfering to injection maintenance mode. Therefore, since the user can clearly distinguish by switching the connection state between the nozzle unit and the button operation unit, it is possible to prevent an erroneous operation that erroneously shifts to the injection maintenance mode.

Further, in the present invention, the cap main body portion includes a buffer wall that buffers direct injection from the injection port when the injection state is maintained.
According to the above configuration, since the momentum of the injection from the injection port can be buffered, it is possible to avoid a situation in which the injection is vigorously aimed at the user even in the injection maintenance state.

  Further, according to the present invention, the nozzle portion includes a swing support portion to which a force is applied when the valve stem is opened, and the cap body portion has a cam portion that guides the rotation operation of the nozzle portion. When the nozzle portion is rotated, the swing support portion is guided by the cam portion, and the valve stem is opened by tilting or pressing the nozzle portion.

  According to the above configuration, since the rotation operation is guided by the cam portion, the user can easily maintain the injection state only by giving the nozzle portion a rotation operation.

  Further, in the present invention, the nozzle portion has a rotation stopper that stops the rotation operation of the nozzle portion at a position where the open state of the valve stem is maintained, and the inner peripheral wall of the cap body portion includes The two support shafts that come into contact with the rotation stopper are arranged opposite to each other, and the rotation stopper is in contact with one of the support shafts from the state in which the rotation stopper is in contact with the other support shaft in accordance with the rotation operation of the nozzle portion. It is characterized by moving to.

  According to the above configuration, in the rotation operation of the nozzle portion, the rotation stopper shifts from the state in contact with one support shaft to the state in contact with the other support shaft, so that the user shifts to the injection maintenance mode. It is possible to sensibly recognize that the nozzle portion has been rotated by an amount necessary for this, and it is possible to prevent the nozzle portion from rotating too much.

  Further, in the present invention, the nozzle portion has a projection portion that informs the start position of the rotation operation, and the cam portion is connected to the inner peripheral wall of the cap body portion via two support pieces. The rotation operation is started when the state where the protrusion is positioned between the two support pieces is released.

  According to the above configuration, the rotation operation is started when the state in which the protrusion is positioned between the two support pieces is released. Therefore, the user can recognize the start of rotation sensuously by releasing the state where the protrusion is positioned between the two support pieces, and provides an aerosol injection device with excellent operability. Is possible.

Hereinafter, an embodiment of an aerosol container injection device according to the present invention will be described in detail with reference to the drawings.
The structure of the cap body 10 of the aerosol container injection device 1 according to the present invention will be described based on FIGS. 1 to 6, and the nozzle portion of the aerosol container injection device 1 according to the present invention based on FIGS. 7 to 10. The structure of the button operation unit 40 of the aerosol container injection device 1 according to the present invention will be described based on FIG. 11, and the aerosol container injection device 1 according to the present invention will be described based on FIG. 12. The structure of the lock member 50 is described, the structure of the aerosol container injection device 1 according to the present invention is described based on FIG. 13, the normal injection mode is described based on FIGS. 14 and 15, and FIG. The residual gas discharge mode will be described based on FIG.

(About the configuration of the cap body)
As for the cap main-body part 10 of the aerosol container injection apparatus 1, the outer peripheral wall 11 is formed in a substantially cylindrical shape (refer FIG.1 and FIG.2), and the inner peripheral wall 12 is coaxially formed inside the outer peripheral wall 11 ( 3 to 6). As shown in FIGS. 1 and 3, an inclined surface 13 that forms an upward slope from the upper side to the lower side of the cap body part is formed on the front upper portion of the cap body part 10, and the opening part 14 is formed in the inclined surface 13. Is formed. A button operation unit 40 to be described later is inserted into the opening 14 and attached. Moreover, as shown in FIG.2 and FIG.4, the ellipse shape for discharging | emitting the content injected from the injection port 32 of the nozzle 31 of the nozzle part 30 mentioned later on the top part of the cap main-body part 1 outside is shown. The discharge port 15 is open.

  As shown in FIGS. 1 and 3, the opening 14 has a substantially T shape in cross section, and the opening 25 of the T-shaped vertical bar is formed by stopper portions 26 and 27 on both sides thereof. In addition, a fitting groove 28 into which the rotary shaft 41 (see FIG. 11) of the button operation unit 40 is fitted is formed at the lower ends of the stopper portions 26 and 27. In order to attach the button operation unit 40 to the cap main body, the operation unit substrate 42 extending perpendicularly to the rotation shaft 41 is inserted from the T-shaped opening between the stopper portions 26 and 27 and the rotation shaft 41 is fitted. Attachment is performed by fitting into the groove 28.

  As shown in FIG. 4, four support shafts 16, 19, 23, and 24 protrude from the inner peripheral wall 12 toward the center of the cap main body 10. The four support shafts are arranged at equal intervals at positions facing each other, and the support shafts 16 and 23 of the four support shafts protrude larger toward the center than the support shafts 19 and 24.

  As shown in FIG. 4, a cam 60 for guiding the nozzle portion 30 from the vertical state to the inclined state is formed near the opening 15 closer to the center than the inner peripheral wall 12. As shown in FIG. 6, the cam 60 forms a vertical guide groove 29, and is formed to extend in the vertical direction as shown in FIG. The guide surface 20 is formed with a downward slope from the center of the vertical guide groove 29, and the holding surface 21 (engagement portion) is formed at the lower end of the guide surface 20. The tip of the cam 60 is connected to the inner peripheral wall 12 via the support pieces 17 and 22, and the support piece 17 and the inner peripheral wall 12 form a groove 61, and the support piece 22 and the inner peripheral wall 12 form a groove 62. Is forming.

(About the configuration of the nozzle part)
As shown in FIGS. 7 and 8, the nozzle portion 30 has a substantially cylindrical nozzle base 36 with a coaxial circular nozzle support portion 37 having a smaller diameter than the nozzle base 36, and a coaxial circle from the center thereof. A nozzle 31 protrudes vertically upward. The nozzle base 36 is mounted on the canopy of the aerosol container, and the nozzle 31 is mounted on the valve stem of the aerosol container. The nozzle is tilted to open the valve stem, and the contents are ejected from the ejection port 32.

  As shown in FIG. 7, a swing support portion 38 is formed in the center of the front surface of the nozzle portion 30. By fitting with a fitting groove 43 of the button operation portion 40 described later, the button operation portion 40 and the nozzle The parts 30 are connected. The rear center part (opposite side of the swing support part 38) of the nozzle part 30 serves as a fulcrum part 39 when the nozzle part 30 tilts in the normal injection mode. Further, as shown in FIGS. 7 and 9, protrusions 34 and 35 protrude vertically upward from the front and rear portions of the nozzle support portion 37. In addition, a rotation stopper 33 protrudes at a substantially intermediate position between the protrusion 35 and the swing support 38 on the side wall of the nozzle support 37. The function of the rotation stopper 33 will be described later.

(About the configuration of the button operation unit and lock member)
As shown in FIG. 11, the button operation unit 40 has a square opening 45 formed substantially at the center of the flat substrate 44, and an operation unit substrate 42 protruding from the back surface of the flat substrate 44. A rotation shaft 41 of the button operation unit 40 is provided at a lower portion of the operation substrate 42 so as to be orthogonal to the flat substrate 44, and a fitting groove 43 is formed behind the rotation shaft 41.
The lock member 50 has a flat substrate 51 that is slightly smaller overall than the flat substrate 44 of the button operation unit 40, and the operation unit substrate 42 from the back surface of the flat substrate 51 through the opening 45 of the button operation unit 40. Lock pieces 52, 52 that are engaged with are formed to project.

(Regarding the configuration of the aerosol container injection device)
The aerosol container injection device 1 of the present embodiment is configured by the cap main body portion 10, the nozzle portion 30, the button operation portion 40, and the lock member 50 described above.
As shown in FIG. 13, the nozzle part 30 is attached to the canopy part 71 of the aerosol container 70, the cap body part 10 is attached to the mountain cup 72 of the aerosol container 70, and the nozzle part 30 is held by the inner peripheral wall 12. Wear like so.
Next, the rotary shaft 41 of the button operation unit 40 is fitted into the fitting groove 28 of the cap main body 10 with the lock piece 52 of the lock member 50 and the operation unit substrate 42 of the button operation unit 40 engaged. At the same time, the swing support portion 38 of the nozzle portion 30 is fitted into the fitting groove 43 of the button operation portion 40.

  When the lock member 50 is lowered in the direction indicated by the arrow X shown in FIG. 13 after the lock member 50 is attached to the button operation unit 40, the distal end portions 53, 53 of the lock piece 52 become the stopper portions 26, 27, the button operation unit 40 is not rotated by an operation from the arrow Y direction, and the injection state can be locked. FIG. 13 shows the injection lock state.

  On the other hand, as shown in FIG. 14, when the lock member 50 is raised in the arrow Z direction, the contact state between the distal end portions 53, 53 of the lock piece 52 and the stopper portions 26, 27 of the cap body portion 10 is released. The button operation unit 40 can be rotated by the operation from the lateral direction of the main body unit 10 and can be shifted to the injection state.

(Regarding the normal injection mode of the aerosol injection device)
As shown in FIGS. 14 and 15, the contact state between the distal end portions 53, 53 of the lock piece 52 and the stopper portions 26, 27 of the cap body portion 10 is released, the lock in the injection state is released, and the arrow F direction When the button operation unit 40 is operated from the lock member 50 through the lock member 50, the button operation unit 40 rotates with the rotation shaft 41 of the button operation unit 40 as a support shaft, and the swing support unit 38 of the nozzle unit 30 supports the support shaft 38. As a result, the nozzle 31 tilts forward.
As the nozzle 31 tilts, the valve stem 73 of the aerosol container 70 is opened, and the contents of the aerosol container 70 are ejected from the ejection port 32.

(Regarding the residual gas discharge mode (injection maintenance mode) of the aerosol injection device)
As shown in FIGS. 16 and 17, the button operation part 40 is pulled out in the direction of arrow G, and the fitting state between the fitting groove 43 of the button operation part 40 and the swinging support part 38 of the nozzle part 30 is released. The part 30 can be rotated independently with respect to the aerosol container 70. When the nozzle portion 30 is rotated 180 degrees while sandwiching the aerosol container from this state, the swinging support portion 38 is inclined by being guided by the gradient of the guide surface 20 of the cam 60 of the cap main body portion 10. When it is guided to 21, the inclined state is maintained, the open state of the valve stem is maintained, and the residual gas can be discharged.

  In the present embodiment, as the nozzle portion 30 rotates 180 degrees, the rotation stopper 33 shifts from a state in which the rotation stopper 33 is in contact with the one support shaft 23 to a state in which the rotation stopper 33 is in contact with the other support shaft 16. It is possible to sensuously recognize that the nozzle unit 30 has been rotated by 180 degrees, and to prevent the nozzle unit 30 from rotating excessively.

  Further, in the normal injection mode, the protrusion 35 is held in a state positioned between the two support pieces 17 and 22, and rotational force is applied when shifting to the residual gas discharge mode (injection maintenance mode). As a result, when the protrusion 35 gets over the support piece 17 and the state where the protrusion 35 is positioned between the two support pieces 17 and 22 is released, the rotation operation is started. Therefore, the user can recognize the start of rotation sensuously by releasing the state in which the protrusion 35 is positioned between the two support pieces 17 and 35, and is an aerosol spray excellent in operability. An apparatus can be provided.

  In addition, although this embodiment demonstrated the aerosol container injection apparatus with which the aerosol container provided with the pushdown valve was mounted | worn, the aerosol container injection apparatus 1 of this embodiment also applies to the aerosol container provided with the tilt valve. Of course, it can be adopted.

(Regarding a modification of the aerosol container injection device)
Next, a modified example of the aerosol container injection device described above will be described.
FIG. 18 is a bottom view of a cap main body portion that constitutes an aerosol container spray device according to a modification. 19 is a cross-sectional view taken along line FF in FIG. In addition, the description regarding the component similar to the said embodiment is abbreviate | omitted.

  The cap main body 110 constituting the aerosol container injection device 100 has a buffer wall 111 for buffering direct injection from the injection port 132 when the injection state of the contents is maintained from the injection port 132 of the nozzle unit 130. It has a configuration with. Since the momentum of the injection from the injection port 132 can be buffered by the buffer wall 111, it is possible to avoid a situation in which the contents are jetted with force toward the user even in the injection maintaining state.

It is a front view of the cap main-body part which comprises the aerosol container injection device concerning this embodiment. It is a top view of the cap main-body part which comprises the aerosol container injection device concerning this embodiment. It is the sectional view on the AA line of FIG. It is a bottom view of the cap main-body part which comprises the aerosol container injection device concerning this embodiment. FIG. 4 is a sectional view taken along line BB in FIGS. 2 and 3. It is CC sectional view taken on the line of FIG. It is a front view of the nozzle part which comprises the aerosol container injection device concerning this embodiment. It is a bottom view of the nozzle part which comprises the aerosol container injection device concerning this embodiment. It is a top view of the nozzle part which comprises the aerosol container injection device concerning this embodiment. It is the DD sectional view taken on the line of FIG. (A) is a front view of the button operation part which comprises the aerosol container injection device concerning this embodiment. (B) is the DD sectional view taken on the line of (a) figure. (A) is a front view of the lock member which comprises the aerosol container injection device concerning this embodiment. (B) is the EE sectional view taken on the line of (a) figure. It is sectional drawing of the injection apparatus for aerosol containers in an injection lock state. It is sectional drawing of the injection apparatus for aerosol containers in an injection lock cancellation | release state. It is sectional drawing of the injection apparatus for aerosol containers in normal injection mode. It is sectional drawing of the injection apparatus for aerosol containers in residual gas discharge mode. It is sectional drawing of the injection apparatus for aerosol containers which shows the injection state in residual gas discharge mode. It is a bottom view of the cap main-body part which comprises the aerosol container injection apparatus of a modification. It is the FF sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,100: Aerosol container injection device 10,110: Cap main body part, 12: Inner peripheral wall, 16, 23: Support shaft, 17, 22: Support piece, 30,130: Nozzle part, 32,132: Injection port 33: rotation stopper, 34, 35: protrusion, 38: swing support, 60: cam, 70: aerosol container, 73: valve stem

Claims (5)

An aerosol container injection device attached to an aerosol container,
A nozzle portion that is attached to a valve stem of the aerosol container and has an injection port through which the content ejected from the valve stem is injected;
A cap body portion mounted on the aerosol container in a state of being rotatably mounted with the nozzle portion, and
The nozzle portion has a rotation stopper that stops the rotation operation of the nozzle portion at a position where the open state of the valve stem is maintained,
On the inner peripheral wall of the cap main body portion, two support shafts that come into contact with the rotation stopper are arranged to face each other.
Said nozzle portion, both when it is rotated to the engaging portion engages provided in the cap body relative to the cap body, from a state in which the rotation stopper abuts on one of the support shaft other The aerosol container injection device according to claim 1, wherein the valve stem is maintained in an open state and an injection state of contents from the injection port is maintained when the state is brought into contact with the support shaft. The aerosol container injection device includes an injection maintenance mode in which an injection state of contents from the injection port is maintained, and a content from the injection port when a button operation unit that transmits an external force to the nozzle unit is pressed. Can be switched to the normal injection mode in which
The nozzle portion is connected to the button operation portion in the normal injection mode, and is disconnected from the button operation portion when shifting to the injection maintenance mode, and is engaged with an engagement portion provided in the cap main body portion. The aerosol container injection device according to claim 1, wherein   The aerosol container injection device according to claim 1, wherein the cap main body includes a buffer wall that buffers direct injection from the injection port when the injection state is maintained. The nozzle portion includes a swing support portion to which a force is applied when opening the valve stem,
The cap body portion includes a cam portion that guides the rotation operation of the nozzle portion,
4. When the nozzle portion is rotated, the swing support portion is guided by the cam portion, and the valve stem is opened by being inclined or pressed down. An aerosol container spray device according to claim 1. The nozzle portion has a protrusion that informs the start position of the rotation operation,
The cam portion is connected to the inner peripheral wall of the cap body portion via two support pieces,
The aerosol container injection device according to any one of claims 1 to 4, wherein the rotation operation is started when the state where the protrusion is positioned between the two support pieces is released .

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