JP2008120441A - Jetting apparatus for aerosol container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a jetting apparatus for an aerosol container which can be removed from an aerosol container by small operational force and which can be reused after it is removed once so that resources can be saved. <P>SOLUTION: The jetting apparatus 10 attached to the aerosol container 30 is equipped with a jetting apparatus body 11 attached to a mountain cup 31 of the aerosol container 30, a pressing part 12 which is capped and attached on a valve stem and presses the valve stem in accordance with a pressure from the outside, a weak rigid body 13 as a hinge part which integrates one end of the pressing part 12 into the jetting apparatus body 11 rotatably and a rotation suppressing part 14 receiving a force in the attachment releasing direction which acts on the pressing part 12 integrated into the jetting apparatus body 11, and can be removed without breaking the hinge part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an aerosol container injection device that is attached to an aerosol container and injects the contents ejected from a valve stem of the aerosol container to the outside.

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.
Aerosol products are generally installed in an aerosol container filled with a liquid or powdered content of combustible gas compressed as a propellant, and the contents are ejected from the valve stem attached to the valve stem of this aerosol container. And an injection device for injecting outside.

  Normally, aerosol containers used for aerosol products are metal products, and the injection device is a synthetic resin product, which is a product made of different materials. Therefore, when disposing of used aerosol products, the aerosol containers are injected from the aerosol container. It is desirable to remove the device and dispose of it separately.

6 and 7 show a conventional example of an injection device attached to an aerosol container.
The injection device 51 shown here is disclosed in Patent Document 1, and can be removed from the aerosol container 61 with a slight operating force when the aerosol product is discarded.
Specifically, the injection device 51 is provided so as to protrude from the center of the top of the aerosol container 61 and the injection device main body 52 having a substantially cylindrical structure fitted to the outer periphery of the mountain cup portion 62 of the aerosol container 61. A pressing portion 53 that is mounted on the valve stem 64 and presses the valve stem 64 according to a pressing force from the outside, and one end of the pressing portion 53 is rotatably integrated with the injection device main body 52. 53 includes a hinge portion 55 for tilting in a direction to push down the valve stem 64 by a pressing force from the outside.

  And the hinge part 55 has connected the front-end part of the lower part of the press part 53 to the upper front-end part of the injection apparatus main-body part 52. As shown in FIG. As shown in FIG. 7, the substantially cylindrical injection device main body 52 is formed with a thin portion 56 having a reduced thickness for breaking in the axial direction of the cylinder from both sides of the base of the hinge portion 55. Yes.

  When the above injection device 51 is removed from the aerosol container 61 for separation and disposal, first, as shown by an arrow (A) in FIG. Then, the pressing portion 53 is detached from the valve stem 64. Next, as shown in FIG. 9, when the pressing portion 53 is pulled away from the cylindrical injection device main body 52, the pair of thin portions 56 shown in FIG. A portion 57 sandwiched between the pair of thin portions 56 of the device main body 52 is torn off, and the pressing portion 53 is separated from the injection device main body 52.

Due to the separation of the pressing portion 53, the injection device main body portion 52 fitted to the mountain cup portion 62 of the aerosol container 61 has a form in which a part in the circumferential direction is cut off as shown in FIG. As shown in the arrows (b) and (c), the ejecting device main body 52 can be easily detached from the mountain cup portion 62 by urging the separating portion 58 in the pushing-opening direction.
Thus, the injection device 51 can be easily detached from the aerosol container 61.

JP 2003-81370 A

However, in the case of the injection device shown in FIGS. 6 to 10, the operation of removing the injection device 51 from the aerosol container 61 causes the injection device 51 to be in a broken state in which the injection device main body 52 and the pressing portion 53 are divided. End up.
That is, since the said injection apparatus will be broken once it removes from the aerosol container 61, it cannot be mounted | worn again and reused in another aerosol container, and it was uneconomical in terms of resources.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, and when disposing of an aerosol product, the spray device can be detached from the aerosol container with a slight operating force, and can be reused even after being removed. It is an object of the present invention to provide an aerosol container injection device capable of saving the cost.

The present invention that can solve the above-mentioned problems is an aerosol container injection device that is mounted on an aerosol container and injects the contents ejected from the valve stem of the aerosol container to the outside,
An injection device main body mounted on the mountain cup portion of the aerosol container, a pressing portion that is mounted on the valve stem in a crown and presses the valve stem according to a pressing force from the outside, and one end of the pressing portion A weakly rigid body part that functions as a hinge part for tilting in a direction to push down the valve stem by an external pressing force, When the force in the direction of releasing the mounting state with the valve stem is applied to the pressing portion, the pressing portion rotates in the direction of releasing the mounting with the valve stem using the weak rigid body portion as a rotation fulcrum. A rotation suppression unit that suppresses
The rotation suppression unit receives a load due to an external force applied to the pressing unit in order to remove the spray device main body from the aerosol container.

According to the said structure, when removing an injection apparatus from an aerosol container in order to carry out separation disposal, the force of the direction which cancels | releases the mounting state with the valve stem of an aerosol container is made to act on a press part. At this time, the force in the mounting release direction acting on the pressing portion is received by the rotation suppressing portion formed integrally with the injection device main body portion, so that an unreasonable bending load or the like is not applied to the weak rigid body portion functioning as the hinge portion. Therefore, the weak rigid body portion is not destroyed by the load applied for removing the injection device.
Moreover, since the force in the mounting release direction applied to the pressing portion is transmitted to the injection device main body through the rotation suppressing portion, the pressing portion and the injection device main body remain integrated and can be removed from the aerosol container without breaking. Will be removed.
Therefore, when disposing of a used aerosol container, it can be removed from the aerosol container, and the aerosol container can be disposed of separately. The ejected device once removed can be reused by being attached to another aerosol container. Yes, it can be reused to save resources.

  Further, in the present invention, the rotation suppressing part is disposed so as to be spaced apart upward from the engaging parts on both sides of the pressing part and partially overlap the engaging parts on both sides, and the pressing part is located above When the rotary operation is performed, the engaging portions are brought into contact with and engaged with the engaging portions on both sides.

According to such a configuration, only when trying to rotate the pressing portion upward (that is, in the direction of releasing the mounting state with the valve stem), the contact portion engages with the locking portions on both sides. At the time of a pressing operation at the time of use, there is no contact between the pressing portion and the rotation suppressing portion, and the rotation suppressing portion does not interfere with the pressing operation, and good operability can be maintained.
Moreover, since the rotation suppression part should just be the structure which overlaps with the latching | locking part of the both sides of a press part, it does not become a complicated and big structure. Therefore, it is possible to provide an injection device that is excellent in moldability and compactness without being difficult to mold the injection device or sacrificing the compactness of the injection device due to the equipment of the rotation suppressing portion. .

Further, in the present invention, the injection device main body portion has a substantially cylindrical side edge portion provided with an engagement portion that engages with the mountain cup portion,
When the external force for removing the injection device main body from the aerosol container is applied to the side edge portion, elastic deformation in a direction in which the engagement between the mountain cup portion and the engagement portion is released easily occurs. A notch is formed.

According to the said structure, the substantially cylindrical side edge part engaged with the mountain cup part of an aerosol container is the direction of releasing the engagement with a mountain cup part by the notch part formed in the part. Elastic deformation is likely to occur. Therefore, even if the force in the mounting release direction applied to the pressing portion to remove the injection device from the aerosol container is not so large, when the force is transmitted to the injection device main body through the rotation suppression portion, The injection device main body can be easily detached from the mountain cup by elastic deformation of the side edge.
Accordingly, when the aerosol product is discarded, the spray device can be removed from the aerosol container with a slight operating force, and it does not take time to separate and discard the aerosol product.
Further, since the side edge portion is easily elastically deformed, the engaging portion engaged with the mountain cup portion is not subjected to excessive twisting or friction, and the engaging portion can be prevented from being broken.

Hereinafter, an embodiment of an aerosol container injection device according to the present invention will be described in detail with reference to the drawings.
1 is a front view of an embodiment of an aerosol container injection device according to this embodiment, FIG. 2 is a side view of the injection device shown in FIG. 1, and FIG. 3 is a top view of the injection device shown in FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. 5 is a cross-sectional view taken along the line BB in FIG.

  The aerosol container injection device 10 according to the present embodiment is, for example, a straight tubular valve that is mounted on an aerosol container 30 (see FIG. 5) filled with cosmetics, insecticides, and the like, and is provided at the center of the top of the aerosol container 30. The contents ejected from the stem (not shown) are ejected to the outside.

  Specifically, the injection device 10 of the present embodiment includes an injection device main body 11 that is attached to a mountain cup portion 31 that is provided around the upper portion of the aerosol container 30, and a straight tubular valve stem ( (Not shown) is attached to the crown, and a pressing portion 12 that presses the valve stem according to a pressing force from the outside and one end (front end) of the pressing portion 12 are rotatably integrated with the injection device main body 11. The weak rigid body 13 is integrally formed by synthetic resin injection molding or the like.

  The injection device main body 11 has a substantially cylindrical side edge 18 that fits into the inner periphery of the mountain cup portion 31, and projects from the upper end edge of the side edge 18 in a hook shape radially outward. And a flange portion 19 that comes into contact with the top portion.

The outer peripheral surface of the substantially cylindrical side edge 18 is provided with a plurality of engaging portions 16 that engage with the concave grooves 32 on the inner periphery of the mountain cup portion 31 and are fixed to the mountain cup portion 31. It has been. As shown in FIGS. 1 and 2, the plurality of engaging portions 16 are provided to be separated in the circumferential direction.
Further, in the case of the present embodiment, a cut portion 17 is formed in the substantially cylindrical side edge portion 18 along the axial direction of the cylinder. The cut portion 17 is formed from the lower end of the side edge portion 18 along the axial direction of the cylinder, and makes the side edge portion 18 easily elastically deformed in the reduced diameter direction or the increased diameter direction.

  In other words, the cut portion 17 facilitates insertion by elastic deformation of the side edge portion 18 in the diameter reducing direction when the side edge portion 18 is inserted into the mountain cup portion 31. In addition, even when an external force for removing the injection device main body 11 from the aerosol container 30 is applied, it is easy to cause elastic deformation in the reduced diameter direction that releases the engagement between the mountain cup portion 31 and the engagement portion 16. It can be removed even with a slight operating force.

  As shown in FIGS. 4 and 5, the pressing portion 12 includes a stem fitting hole 21 into which a straight tubular valve stem (corresponding to the valve stem 64 in FIG. 6) of the aerosol container 30 is fitted, and the stem fitting hole 21. The injection head 23 having the injection nozzle hole 22 provided in communication with the tip of the nozzle, and the pressing plate portion extending rearward (opposite to the injection nozzle hole 22) continuously from the upper end surface of the injection head 23 24. Non-slip irregularities 24 a are formed on the surface of the pressing plate portion 24.

  When removing the injection device 10 from the aerosol container 30, the pressing plate portion 24 hooks the finger F on the back surface of the pressing plate portion 24 in FIG. 5, and moves the pressing portion 12 upward as indicated by an arrow (D) in FIG. 5. Pull on. In this case, the upper direction is a direction in which the fitting between the valve stem and the stem fitting hole 21 is released and the mounting state on the valve stem is released.

  As shown in FIG. 4, side walls 25 are provided on both sides of the pressing portion 12 so as to hang down from the pressing plate portion 24. And the latching | locking part 15 protruded horizontally toward the outer side is provided in the lower part of this both-sides wall 25. As shown in FIG.

And as shown in FIG. 4, the rotation suppression part 14 is integrally equipped in the upper both sides of the injection device main-body part 11 so that the said latching | locking part 15 may be opposed.
As shown in FIGS. 3 and 4, the rotation suppressing portion 14 is pressed so as to be spaced apart upward from the locking portions 15 on both sides of the pressing portion 12 and partially overlap the locking portions 15 on both sides. It is a plate piece protruding toward the side wall 25 of the portion 12.
The rotation restraining portion 14 contacts and engages with the locking portions 15 on both sides when the pressing portion 12 is rotated upward, and receives a load acting on the pressing portion 12.

The weak rigid body portion 13 functions as a hinge portion for tilting the pressing portion 12 in a direction to push down the valve stem by a pressing force from outside than the pressing portion 12 and the vicinity of the front end of the injection device main body portion 11.
Due to the function of the weak rigid body portion 13 as a hinge portion, when the force in the direction of releasing the mounting state with the valve stem is applied to the pressing portion 12 by the finger F as shown in FIG. 5, the weak rigid body portion 13 is rotated. As a fulcrum, the pressing part 12 tries to rotate in the direction of releasing the attachment with the valve stem.
However, in the case of the injection device 10 according to the present embodiment, when the force in the direction of releasing the mounting state with the valve stem is applied by the finger F and the pressing portion 12 is lifted slightly, it is provided on both sides of the pressing portion 12. The locking portion 15 that has been in contact with the rotation suppressing portion 14 on the injection device main body 11 that has been waiting above is suppressed from further rotating behavior with the weak rigid body portion 13 as a rotation fulcrum.
And the load by the force of the mounting | wearing cancellation | release direction which acted on the press part 12 is received by the rotation suppression part 14 which the latching | locking part 15 contact | abutted, and the press part 12 and the injection apparatus main-body part 11 are integrated. Will move in the direction of release.

  In the aerosol container injection device 10 according to the embodiment described above, when the injection device 10 is removed from the aerosol container 30 for separation and disposal, as illustrated in FIG. The finger F is hooked on the back, and a force in a direction to release the mounting state between the valve stem of the aerosol container 30 and the pressing portion 12 is applied. At this time, the force in the dismounting direction acting on the pressing portion 12 is received by the rotation suppressing portion 14 integrally formed with the injection device main body portion 11, so that an unreasonable bending load or the like is applied to the weak rigid body portion 13 that functions as a hinge portion. No load is applied. Therefore, the weak rigid body portion 13 is not destroyed by the load applied for removing the injection device 10.

Moreover, since the force in the mounting release direction applied to the pressing portion 12 is transmitted to the injection device main body 11 via the rotation suppressing portion 14, the pressing portion 12 and the injection device main body 11 are broken while being integrated. It will be removed from the aerosol container 30 without.
Therefore, when the used aerosol container 30 is discarded, it can be removed from the aerosol container 30 and the aerosol container 30 can be separated and discarded, and the ejected apparatus 10 once removed is attached to another aerosol container 30 and reused. Can be reused to save resources.

  Further, in the aerosol container injection device 10 of the present embodiment, the rotation suppressing portion 14 is spaced upward from the locking portions 15 on both sides of the pressing portion 12 as shown in FIG. The stopper portion 15 is arranged so as to partially overlap, and when the pressing portion 12 is rotated upward, it contacts and engages with the locking portions 15 on both sides.

  Accordingly, only when trying to rotate the pressing portion 12 upward (that is, in the direction of releasing the mounting state with the valve stem), the pressing portion 12 is brought into contact with and engaged with the locking portions 15 on both sides. At the time of operation, there is no contact between the pressing portion 12 and the rotation suppressing portion 14, and the rotation suppressing portion 14 does not interfere with the pressing operation, and good operability can be maintained.

  Moreover, since the rotation suppression part 14 should just be the structure which overlaps with the latching | locking part 15 of the both sides of the press part 12, it does not become a complicated and big structure. Therefore, it is possible to provide the injection device 10 that is excellent in moldability and compactness without being difficult to mold the injection device 10 or sacrificing the compactness of the injection device 10 due to the equipment of the rotation suppression unit 14. can do.

  Further, in the case of the aerosol container injection device 10 of the present embodiment, the injection device main body 11 has a substantially cylindrical side edge 18 provided with an engagement portion 16 that engages with the mountain cup portion 31. Further, when an external force for removing the injection device main body 11 from the aerosol container 30 is applied to the side edge portion 18, elastic deformation in a direction to release the engagement between the mountain cup portion 31 and the engagement portion 16 occurs. A cut portion 17 is formed to facilitate the cutting.

  That is, the substantially cylindrical side edge portion 18 engaged with the mountain cup portion 31 of the aerosol container 30 is released from the engagement with the mountain cup portion 31 by the cut portion 17 formed in a part thereof. It is easy for elastic deformation to occur. Therefore, even if the force in the mounting release direction applied to the pressing portion 12 to remove the injection device 10 from the aerosol container 30 is not so large, the force is transmitted to the injection device main body 11 via the rotation suppressing portion 14. When this is done, the injection device main body 11 can be easily removed from the mountain cup 31 by elastic deformation of the side edge 18.

Accordingly, when the aerosol product is discarded, the injection device 10 can be detached from the aerosol container 30 with a slight operating force, and it does not take time to separate and discard.
In addition, since the side edge portion 18 is easily elastically deformed, the engaging portion 16 engaged with the mountain cup portion 31 is not subjected to excessive twisting or friction, thereby preventing the engaging portion 16 from being broken. You can also.

It is a front view of one embodiment of an aerosol container injection device according to the present embodiment. It is a side view of the injection device shown in FIG. It is a top view of the injection device shown in FIG. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a longitudinal cross-sectional view of the conventional aerosol container injection apparatus. It is a front view of the injection apparatus shown in FIG. FIG. 7 is a longitudinal sectional view showing a state in which a pressing portion is raised in order to remove from the aerosol container in the injection device shown in FIG. 6. It is a longitudinal cross-sectional view which shows the state which pulled the press part after the raising operation of the press part shown in FIG. 8, and cut | disconnected the press part from the injection apparatus main-body part. It is C arrow line view of FIG.

Explanation of symbols

10: aerosol container injection device (injection device), 11: injection device main body, 12: pressing portion, 13: weak rigid body portion, 14: rotation suppressing portion, 15: locking portion, 16: engaging portion, 17: Cut portion, 18: side edge portion, 21: stem fitting hole, 23: spray head, 24: pressing plate portion, 25: side wall, 30: aerosol container, 31: mountain cup portion, 32: concave groove

Claims (3)

An aerosol container injection device that is attached to an aerosol container and injects the contents ejected from the valve stem of the aerosol container to the outside,
An injection device main body mounted on a mountain cup portion of the aerosol container;
A pressing portion that is crowned on the valve stem and presses the valve stem in accordance with an external pressing force;
A weak rigid body part that functions as a hinge part for one end of the pressing part to be rotatably integrated with the injection device main body part and tilted in a direction in which the pressing part pushes down the valve stem by a pressing force from outside.
When the force in the direction to release the mounting state of the valve stem is applied to the pressing portion, the pressing portion is mounted to the valve stem with the weak rigid body portion as a rotation fulcrum. A rotation suppression unit that suppresses rotation in the release direction,
An aerosol container injection device, wherein the rotation suppression unit receives a load caused by an external force applied to the pressing portion in order to remove the injection device main body from the aerosol container.   The rotation suppressing portion is disposed so as to be spaced apart upward from the engaging portions on both sides of the pressing portion and partially overlap the engaging portions on both sides, and when the pressing portion is rotated upward. The aerosol container injection device according to claim 1, wherein the first and second engaging portions are brought into contact with and engaged with each other. The injection device main body has a substantially cylindrical side edge portion provided with an engagement portion that engages with the mountain cup portion,
When the external force for removing the injection device main body from the aerosol container is applied to the side edge portion, elastic deformation in a direction in which the engagement between the mountain cup portion and the engagement portion is released easily occurs. 3. The aerosol container injection device according to claim 1 or 2, wherein a cut portion is formed.

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