JP4963880B2 - Aerosol container cap and aerosol injection device - Google Patents

Description

  The present invention relates to an aerosol container cap and an aerosol injection device, and more specifically, an aerosol container cap capable of easily discharging the contents in an aerosol container after use, and an aerosol equipped with the aerosol container cap. The present invention relates to an injection device.

  Aerosol spray device can easily spray, disperse or apply the contents in the container, so paint, insecticide, fragrance, deodorant, household cleaner, fungicide, disinfectant It is widely used for injection of pharmaceuticals, cosmetics, quasi drugs and the like. In this aerosol type spray device, an injection target and an injection gas are accommodated in an aerosol container, and the injection target is injected through an injection nozzle by pressurization by the injection gas. In the present specification and claims, the `` contents '' in the container includes the propellant and the gas for injection, and even when only the propellant and the gas for injection are included, Sometimes referred to as “content”. “Aerosol” refers to a liquid, gas, powder, or the like ejected from a container through an ejection nozzle, and includes spray forms such as a mist, particle, foam, paste, and gel. “Discharge” with respect to the contents means that the remaining contents are released for the purpose of discarding the aerosol container unless otherwise specified.

  As the injection gas, the use of chlorofluorocarbon is prohibited, and currently, flammable butane, liquefied gas such as propane, high pressure gas such as nitrogen gas and carbon dioxide gas is used. If the used aerosol container is discarded as garbage as it is, there is a risk that the container will explode due to the gas pressure in the container during the disposal of the garbage. In order to prevent such an accident, when disposing of an aerosol container, it is desirable to discharge the contents in the container to the normal pressure before disposing it. It is required to discharge the contents in the container before disposal.

  In general-purpose aerosol injection devices, the nozzle head attached to the stem is covered with a cap, and when used, the cap is removed and the content is sprayed by pushing down the stem by pushing the nozzle head (two-touch type). And the type of spraying the contents by pushing down the stem by pressing the spray button (hereinafter simply abbreviated as “button”) with the spray nozzle without removing the cap (called the one-touch type) )

  Of these, the one-touch type is frequently used in recent years because the injection operation is simple and there is no risk of losing the cap. The one-touch type aerosol injection device can inject without removing the cap, so the cap can be removed by adopting a structure that keeps the button pressed down even when discharging the contents before disposal. Some have been proposed that can be discharged without removal (Patent Documents 1 and 2). However, in this structure, since the button is not covered with the cap, the contents are scattered directly from the injection nozzle to the surrounding environment, causing contamination of the surrounding air, and in the presence of a fire, there is an ignition of the injection. There is also a risk.

  To cope with this, the button is built into the cap, and when discharging, the cap is removed from the aerosol container together with the button, the aerosol container is inverted, and the exposed valve stem is pressed against the top of the button to discharge. Has been proposed (Patent Document 3). The top surface of the button used in this device is provided with a groove or a through-hole for guiding the contents, thereby guiding the contents to a space in the cap. However, pressing the small valve stem against the top of the button with the aerosol container upside down is not always easy because the stem is difficult to see. The contents may pop out, causing the contents to scatter or adhere to the skin.

On the other hand, in the two-touch type aerosol spray device that removes the cap when in use, a horizontal wall that partitions the void surrounded by the side wall of the cap is provided in the middle of the height direction, and the inside of the cap is divided vertically by the horizontal wall Have been proposed (Patent Documents 4 and 5). Normally, cover the cap with the button in the lower space, and when discharging, remove the cap and turn it upside down to place the button in the space on the opposite side of the cap. The injection button is pushed down and discharged from the injection button into the empty space of the cap. However, this structure is possible in the case of the two-touch type, and in the one-touch type aerosol spray device, the spray button is pushed with a finger while the cap is attached. A wall cannot be provided.
JP-A-8-133360 JP 2002-193362 A JP 2002-293388 A Japanese Utility Model Publication No. 6-71485 JP 2000-309388 A

  The present invention has been made to solve the above-mentioned problems in a one-touch type aerosol injection device that is easy to operate, and the contents can be easily and reliably discharged when the aerosol container is discarded. An object is to provide a one-touch type aerosol container cap and an aerosol injection device capable of discharging the contents to the empty space.

The present invention, in order to achieve the above object, a cap body to be attached to the aerosol container, a aerosol container cap provided with a button attached to the valve stem of the aerosol container, said cap body, said A fitting portion for attaching to the aerosol container; a button attaching portion to which the button is attached; and a surrounding wall surrounding the button in a state of being attached to the aerosol container ; An opening and an operation recess for receiving a finger are formed, and the button includes an upper wall that receives a pressing operation by a finger, a peripheral wall that extends downward from the upper wall, and an outer portion that protrudes radially outward from the peripheral wall. A flange, a connection part fitted to the valve stem of the aerosol container, and a jet for injecting the contents of the aerosol container through the connection part The button mounting portion includes a cylindrical portion that guides the button in the vertical direction, and an inner portion that protrudes radially inward from the cylindrical portion at a position above the outer flange of the mounted button. The outer flange and the inner flange are arranged so that one of the aerosol container and the cap body is in an inverted state with respect to the other, and at least for injection. Positioned so that they are in contact with each other in a state where they are separated by a stem push-down distance, the injection opening is in a position facing the injection nozzle in a non-use state and a normal injection state, and in the inverted state An aerosol container cap formed so as to be positioned closer to the container body than the spray nozzle when the outer flange and the inner flange of the container are in contact with each other It is intended to provide.

  The cap for an aerosol container according to the present invention is composed of a cap body and a button, and the cap body is a one-touch type provided with an opening for injection and an operation recess for receiving a finger. Further, the button mounting portion provided in the cap body includes a cylindrical portion that guides the button in the vertical direction, and accommodates the button so that the button can be pulled out downward. The cylindrical portion is provided with an inner flange protruding radially inward, and the button provided with the injection nozzle is provided with an outer flange protruding radially outward from the peripheral wall. The outer flange and the inner flange are brought into contact with each other in a state where one of the aerosol container and the cap body approaches the other in an inverted state and is separated by at least a stem depression distance for injection. The injection opening is located at a position facing the injection nozzle in a non-use state and a normal injection state, and the container from the injection nozzle is brought into contact with the outer flange and the inner flange in the inverted state. It is formed so as to be located on the main body side.

  Therefore, normally, the button can be moved up and down within the cap body, and the contents can be ejected by being pushed down. On the other hand, when the contents are discharged, if the cap body is removed from the aerosol container, the button can be pulled out from the cap body and engaged with the valve stem. In this state, when one of the aerosol container and the cap body is brought close to each other in an inverted state, the outer flange and the inner flange come into contact with each other, and when both are pressed against each other, the valve stem is pushed in over the distance required for injection. It is. At this time, since the injection opening is located closer to the container body than the injection nozzle, the contents are injected from the injection nozzle into a space in the cap body.

  In the form in which the cylindrical portion of the button mounting portion accommodates the button so that it can be pulled out downward, when the cap body is lifted, not only when the button naturally falls, but also for integration in the manufacturing process, etc. Including the case where the button is loosely temporarily held on the cap body but can be easily pulled out manually.

  The operation for discharging is easy because the cap body is removed from the aerosol container, and either the aerosol container or the cap body is inverted and pressed against the other. At that time, since the button located on the valve stem of the aerosol container is pressed against the cap body, the size of the button is unlikely to cause an erroneous operation like when pressing a small valve stem, and the discharging operation is ensured. Can be performed. As a result, while the one-touch type injection is possible, the contents can be easily and reliably discharged into the space in the cap at the time of discharging.

  In the aerosol injection device according to the present invention, since the cap is attached to the aerosol container containing the content for injection, the advantage of the cap is reflected. It can be easily and reliably discharged to the space in the cap.

  Hereinafter, with reference to drawings, the cap for aerosol containers concerning the embodiment of the present invention is explained concretely. Note that in the drawings used for description, the same or similar parts may be denoted by the same reference numerals and description thereof may be omitted.

  1 and 2 are diagrams showing a non-use state of an aerosol injection device equipped with an aerosol container cap according to Embodiment 1 of the present invention, in which (a) in FIG. 1 is a perspective view and (b) is a front view. Fig. 2 (a) is a cross-sectional view taken along line IIa-IIa in Fig. 1 (b), (b) is a cross-sectional view taken along line IIb-IIb in Fig. 2 (a), and (c) is (b) It is a figure which expands and shows a part of. 3 and 4 show only the cap. FIG. 3A is a perspective view seen from above, FIG. 3B is a perspective view seen from below, and FIG. 4A is a cross-sectional view taken along line IVa-IVa in FIG. 3C, and FIG. 4B is a cross-sectional view taken along line IVb-IVb in FIG.

  As shown in the figure, an aerosol container cap 1 according to this embodiment includes a cap body 11 and a button 12, and an aerosol container 10 (a part of the container is shown in the figure. Hereinafter, “aerosol container”). May be simply abbreviated as “container”).

  The cap body 11 is substantially cylindrical and has a fitting portion 11d (see FIG. 2) for mounting on the container 10 at the lower end portion. The annular protrusion of the fitting portion 11d is a winding fastening portion of the container 10. 10a is fitted. The winding part 10a is formed in order to couple | bond the container trunk | drum 10b and the mountain cap 10c. Further, the cap body 11 is provided with a surrounding wall 11 a that is substantially cylindrical and surrounds the button 12. In this surrounding wall 11a, an opening 11b for injecting the propellant which is the contents, and an operation of opening the upper end side of the cap body 11 so as to face the opening 11b for injecting and receiving a finger when the button is pressed down A concave portion 11c is formed. Further, the cap main body 11 is formed with a button mounting portion 15 formed along the central axis direction of the container 10 and into which the button 12 is inserted, between the ejection opening portion 11b and the operation recess portion 11c. . Further, the inside of the cap body 11, that is, the area surrounded by the upper portion of the container 10, the surrounding wall 11a of the cap body 11, the button 12, and the like is a space.

  5 and 6 show the above buttons. FIG. 5 (a) is a perspective view seen from above, (b) is a perspective view seen from below, (c) is a front view, and (d) is a side view. 6A is a cross-sectional view taken along line VIa-VIa in FIG. 5C, and FIG. 6B is a cross-sectional view taken along line VIb-VIb in FIG. 6A. As shown in the figure, the button 12 includes an upper wall 12c that receives a pressing operation with a finger, a peripheral wall 12b that extends downward from the upper wall, and an injection nozzle 12a that injects the contents of the aerosol container. Inside the peripheral wall 12b, there is provided a connecting portion 17 fitted to a valve stem (hereinafter referred to as a stem) 16 protruding from the upper part of the aerosol container. The lower portion of the peripheral wall 12b protrudes radially outward. The outer flange 12d is provided. The contents in the container 10 flowing out from the stem 16 are passed through a flow path formed in the button 12 from the injection nozzle 12 a provided on the side wall of the button 12 in a direction substantially perpendicular to the central axis of the container 10. Is to be injected. When not in use, the button 12 is held in the raised position on the stem 16 that is biased upward.

  The button mounting portion 15 includes a cylindrical portion 15a that guides the button 12 in the vertical direction so that the injection nozzle 12a faces the injection opening 11b, and a cylindrical portion at a position above the outer flange 12d of the mounted button. And an inner flange 15b projecting radially inward from 15a. The cylindrical portion 15a is open at the upper and lower ends so that the button 12 can be inserted from below and protruded upward, and accommodates the button 12 so that it can be pulled out downward.

  However, in this embodiment, the temporary holding part 15d is provided in the lower end of the cylindrical part 15a, and the button 12 is temporarily hold | maintained. In this regard, FIG. 7 shows the cap 1 as viewed obliquely from below. The temporary holding portion 15d is formed in a claw shape slightly projecting radially inward from the lower end of the cylindrical portion 15a, and is held to the extent that it does not fall by being locked to the outer flange 12d of the button 12 inserted from below. Thereby, in the manufacturing process, the cap body 11 and the button 12 can be transported and assembled as a unit, and handling is easy. On the other hand, after the cap 1 is mounted on the aerosol container 10 and the connection portion 17 of the button 12 is fitted to the stem 16 of the container 10, the cap body 11 is attached to the stem and the button because the coupling force between the stem and the button is strong. When removed from the container 10, the button 12 is detached from the temporary holding portion 15 d and pulled out downward while remaining on the stem 16.

  Further, the cap body 11 inverts either the cap body or the container body, and pushes the button 12 positioned on the stem 16 into the cap body 11 over a distance necessary for the content injection. A space 30 is provided at the upper center so that the mountain cap 10c of the main body 1 can be received. In this embodiment, the side wall of the surrounding wall 11a facing the void 30 is engaged with the tightening portion 13a around the stem 16 of the container 10 that has been pushed in to discharge the contents, and the fitting is held to hold the pushed-in state. The wearing part 31 is provided in four places. As shown in FIGS. 3 and 4, the fitting portion 31 is formed in a claw shape formed on the side surface of the cap body 11. When the winding part 13a is pushed into the space 30, the fitting part 31 is deformed outward, and the winding part 13a is held in the pushing position by its elastic force.

  Furthermore, the latching | locking part 15c is cyclically provided in the multiple places of the circumferential direction of the cylindrical part 15a at the upper end part of the cylindrical part 15a. As will be described later, the locking portion 15c presses the aerosol container 10 and the cap 1 in an inverted state and presses them together to complete the discharge of the contents of the container 10. When removed from 1, the button 12 is provided in the cap body 11 so that it can be removed from the stem. For this purpose, the locking portion 15c has a claw shape and is provided at a position that engages with the outer flange 12d of the button 12 inserted from above into the cylindrical portion 15a in the opposite direction to the normal use state. In this embodiment, as shown in FIG. 12 (b), the outer flange 12d of the button 12 inserted in the opposite direction into the cylindrical portion 15a is engaged with the outer flange 12d in a state where it abuts on the inner flange 15b. A locking portion 15c is provided at a position to be engaged.

  In order to assemble the aerosol injection device, the button 12 is inserted into the cylindrical portion 15a of the cap body 11 from the lower side, and is held by the temporary holding portion 15d to form the cap 1. The cap 1 is attached to the upper part of the aerosol container 10. This is done by fitting the fitting portion 11d of the cap body 11 to the winding fastening portion 10a of the container 10, and at this time, the stem 16 is fitted into the connection portion 17 of the button 12, and the button 12 is held in the raised position. To do. Thereby, it will be in the state in which injection operation is possible.

  8 and 9 show a normal use state in which the above-mentioned aerosol injection device performs injection from the nozzle 12a, (a) of FIG. 8 is a perspective view, (b) is a front view, and (a) of FIG. ) Is a cross-sectional view taken along line IXa-IXa in FIG. 8B, and FIG. 9B is a cross-sectional view taken along line IXb-IXb in FIG. As shown in the drawing, in the case of normal use in which the propellant is injected, the upper surface of the button 12 is pressed and the stem 16 is pressed down. As a result of the operation, the propellant is injected through the injection nozzle 12 a along with the injection gas (high pressure gas) in the container 10. In this pushed-down position, the injection nozzle 12a is in a position facing the injection opening 11b, so that the injection target is injected to the outside of the cap 1.

  Next, an operation for discharging the contents in the container 10 when the aerosol container is discarded will be described. In order to discharge the contents, the cap body 11 is first removed from the container 10 as shown in FIG. At this time, the button 12 is detached from the temporary holding portion 15 d and remains on the stem 16 due to the close fitting of the connecting portion 17 and the stem 16. Next, the removed cap body 11 is placed on an appropriate support surface in the posture (upright posture) at the time of wearing. Then, as shown in FIG. 11 (a), the container 10 is inverted and the button 12 is inserted into the cylindrical portion 15 a of the cap body 11. At this time, the outer flange 12d of the button 12 is in contact with the inner flange 15b of the tubular portion 15a at a position before the winding fastening portion 13a of the mountain cap 10c engages with the fitting portion 31. In this state, the container 10 is pushed down. FIG. 11 (b) is a front view showing a state in which the container 10 is pushed down, FIG. 12 (a) is a sectional view taken along line XIIa-XIIa in FIG. 11 (b), and FIG. 12 (b) is XIIb in FIG. It is sectional drawing which follows the -XIIb line. By this depressing operation, the stem 16 is pushed in, and the contents are discharged from the injection nozzle 12a of the button 12 through the stem. In this state, the injection nozzle 12a is located below the lower ends of the injection opening 11b and the cylindrical portion 15a, and is located in a space surrounded by the surrounding wall 11a. Therefore, the contents are injected into the cap body 11. Then, it gently flows out of the cap from between the lower surface of the cap body 11 and the support surface.

  In this embodiment, when the distance necessary for injection from the injection nozzle 12a is pushed in the inverted state, the fitting portion 31 is tightly fitted to the winding portion 13a in the mountain cap of the aerosol container. It is formed to do. That is, in the upright state of the cap body 11, the distance d1 (see FIG. 2 (c)) from the upper end of the inner flange 15b to the lower end of the fitting portion 31 is the button 12 when the contents are injected (when the button is depressed). It is made equal to the distance d2 from the upper end of the outer flange 12d to the lower end of the winding part 13a in the mountain cap 10c of the aerosol container.

 In many aerosol injection devices, a tube extending to the bottom of the aerosol container is coupled to the lower end of the valve stem, and the opening at the lower end of the tube is immersed in a liquid or the like in the container. In this case, when the aerosol container is inverted and discharged, the pressurizing gas is released from the stem. In addition, in some aerosol injection devices, a tube coupled to the lower end of the valve stem has flexibility, and a weight is attached to the lower end of the tube. In this case, when the aerosol container is inclined, the lower end of the tube sinks downward in the aerosol container together with the weight. When the aerosol container is turned upside down, the tube is bent into a U shape and sinks into the liquid of the contents. In this case, when the aerosol container is turned upside down and discharged, the liquid is released.

  When the discharge is completed or when it is desired to stop the discharge halfway, the cap body 11 may be removed from the aerosol container 10 by releasing the fitting between the fitting part 31 and the winding part 13a. Thereby, the stem 16 is returned to the position before being pushed in by the built-in spring, and the ejection is stopped. Further, as shown in FIG. 13, when the button 12 is removed, the outer flange 12 d engages with the locking portion 15 c of the cap body 11, so that the button 12 stays in the cap body 11, and the connection portion 17 and the stem 16 are retained. Release the engagement. According to this embodiment, since the discharging operation is completed in a state where the cap body 11 and the button 12 are coupled, it is convenient when separating and discarding metal parts and plastic parts.

  When the cap main body 11 is not provided with the locking portion 15 c, as shown in FIG. 14, when the cap main body 11 is removed from the aerosol container 10, the button 12 is engaged with the container 10 by the engagement between the connection portion 17 and the stem 16. Along with this, the cap body 11 is pulled out. In this case, if necessary, the button 12 is removed from the stem 16 and discarded. Further, when the cap body 11 is not provided with the locking portion 15c and the engagement between the connection portion 17 and the stem 16 is loose, the button 12 is removed from the aerosol container 10 as shown in FIG. 11 remains.

  As shown in FIG. 15, the contents can be discharged by pushing the cap body 11 in an inverted state and pushing it into the button 12 while the container 10 is upright. 15A shows a discharged state, and FIG. 15B shows a state where the cap body 11 is removed from the container 10 after discharging. Also in this case, the contents are discharged from the injection nozzle 12a of the button 12 into the cap body 11 surrounded by the surrounding wall 11a. The discharged contents then flow out from the cap body 11, but since the spray does not scatter directly out of the cap body, a wide range of ambient air contamination and ignition of the spray are prevented.

  The present invention is not limited to the above embodiment, and various modifications can be made. For example, the temporary holding portion 15d shown in FIG. 7 and the like can have a holding force stronger than the engagement strength between the connection portion 17 and the stem 16 in order to enhance the holding function. Alternatively, the engagement between the connecting portion 17 and the stem 16 can be loosened. In those cases, as shown in FIG. 16, when the cap body 11 is removed from the aerosol container 10, the button 12 is also accompanied by the cap body 11 by the engagement between the outer flange 12d and the temporary holding portion 15d, Come off. Therefore, in order to perform the discharging operation, the button 12 is pulled out from the cap body 11, the connecting portion 17 is engaged with the stem 16, and then either the cap body 11 or the container 10 is turned upside down, Pressing operation will be performed.

  FIG. 17 shows an example in which a cap body having a shape different from that of the above embodiment is provided. In the aerosol container cap 1 ′, the injection opening 11 b ′ of the cap body 11 ′ is a hole that penetrates the surrounding wall 11 a ′, and the hole has a shape such as a circular shape or an oval shape when viewed from the front. can do. The operation concave portion 11c 'is preferably a concave shape having an opening on the upper side from the viewpoint of operability because the button 10 is operated with the index finger while holding the container 10 with one hand. On the other hand, like the aerosol container cap shown in FIGS. 1 to 16, in the case where the injection opening has a concave shape with an upper opening, there is an advantage that a cap can be easily designed to be removed from the container. . That is, when the cap main body fitted from the outside by the fitting portion to the tightening portion of the container is formed of a relatively thin and soft resin or the like, the cap main body positioned between the injection opening and the operation concave portion The cap main body can be removed from the container by simply sandwiching the side wall near the upper end with fingers or the like from both sides and applying a little force. This is because, by holding the above, the fitting portion to the container formed at the lower end of the cap body is subjected to an action of opening in the direction opposite to the sandwiched direction, that is, outward with respect to the container. It is.

  FIG. 18 is a perspective view showing an aerosol injection device according to an embodiment of the present invention. The aerosol injection device shown in FIG. 18 includes an aerosol container 10 and a cap 1. The container 10 includes paints, insecticides, fragrances, deodorants, household cleaners, fungicides, disinfectants, pharmaceuticals, cosmetics, quasi-drugs and other propellants, liquefied propane gas, liquefied butane gas, It contains injection gases such as alternative chlorofluorocarbon gas, high-pressure nitrogen gas, and carbon dioxide gas. Although not shown, a valve mechanism is provided inside the head region of the container 10, and one end of the valve stem biased upward protrudes along the central axis of the container 10.

  As shown in the above-described embodiment (see FIG. 2), this aerosol spraying device has a fitting portion 11d formed on the lower end portion of the cap body 11 on the winding fastening portion 10a formed on the shoulder portion of the aerosol container 10. Are assembled and assembled as an aerosol spray device. The state and operation when the aerosol spray device is not used, during normal use, and when the contents are discharged are as described above. The aerosol container cap of the above embodiment can be used for this aerosol injection device.

  Moreover, the fitting part 31 provided in the cap main body is not necessarily required, and can be omitted. However, when this is omitted, it is necessary to hold the aerosol container and the cap pressed by hand while discharging the contents.

  In the above embodiment, the place where the fitting part of the cap body is fitted when the contents are discharged was the winding part for mounting the valve mechanism in the mountain cap of the aerosol container. By expanding the upper end portion, it is possible to provide a tightening portion for coupling the container body portion and the mountain cap. Also in this case, the same effect as the above embodiment can be obtained.

It is a figure which shows the state at the time of non-use of the aerosol injection apparatus provided with the cap which concerns on one Embodiment of this invention, (a) is a perspective view, (b) It is a front view. It is sectional drawing of the aerosol injection apparatus shown in FIG. 1, (a) is sectional drawing which follows the IIa-IIa line of FIG.1 (b), (b) is sectional drawing which follows the IIb-IIb line of FIG.2 (a). FIG. 4C is a diagram showing a part of FIG. It is a figure which shows the cap main body of the cap shown in FIG. 1, (a) is the perspective view seen from the top, (b) is the perspective view seen from the bottom, (c) is the back surface seen from the operation recessed part side FIG. 4 is a cross-sectional view of the cap of FIG. 3, wherein (a) is a cross-sectional view taken along line IVa-IVa in FIG. 3 (c), and (b) is a cross-sectional view taken along line IVb-IVb in FIG. It is a figure which shows the button of the cap shown in FIG. 1, (a) is the perspective view seen from the top, (b) is the perspective view seen from the bottom, (c) is a front view, (d) is a side view. is there. FIG. 6 is a cross-sectional view of the button of FIG. 5, (a) is a cross-sectional view taken along line VIa-VIa in FIG. 5 (c), and (b) is a cross-sectional view taken along line VIb-VIb in FIG. It is the perspective view which looked at the cap shown in FIG. 1 from the bottom. It is a figure which shows the state (injection state) at the time of normal use of the aerosol injection apparatus shown in FIG. 1, (a) is a perspective view, (b) is a front view. It is sectional drawing of the aerosol injection apparatus shown in FIG. 8, (a) is sectional drawing which follows the IXa-IXa line of FIG.8 (b), (b) is sectional drawing which follows the IXb-IXb line of FIG.9 (a). FIG. It is a figure which shows an example of operation of the contents discharge of the aerosol injection apparatus shown in FIG. 1, and is a perspective view which shows the state which removed the cap main body from the container. It is a figure which shows the discharge operation following FIG. 10, (a) is a perspective view which shows the state which applied the container and the button to the cap main body, (b) is the front which shows the state which pressed the container with respect to the cap main body. FIG. 12A is a cross-sectional view of the state shown in FIG. 11B, where FIG. 11A is a cross-sectional view taken along line XIIa-XIIa in FIG. 11B, and FIG. 11B is taken along line XIIb-XIIb in FIG. It is sectional drawing. It is a figure which shows the discharge operation following FIG. 11, and is a perspective view which shows the state which removed the container from the cap main body after discharge | emission. It is a perspective view which shows the case where the operation similar to FIG. 13 is performed about the other form of the cap which concerns on this invention. It is a figure which shows the other example of content discharge operation of the aerosol injection apparatus shown in FIG. 1, (a) is a perspective view which shows the state which pressed the cap main body with respect to the container, (b) is a cap main body after discharge | emission. It is a perspective view which shows the state which removed from the container. It is a perspective view which shows the state which removed the cap main body from the container for discharge | emission operation about the further another form of the cap which concerns on this invention. It is a perspective view of an aerosol injection device provided with a cap concerning other embodiments of the present invention. It is a perspective view showing an aerosol injection device concerning one embodiment of the present invention.

Explanation of symbols

1, 1 'aerosol container cap 10 aerosol container 11, 11' cap body 11a surrounding wall 11b injection opening 11c operation recess 11d fitting part 12 button 12a injection nozzle 12b peripheral wall 12c upper wall 12d outer flange 13a winding tightening part 10a Winding part 10c Mountain cap 15 Button mounting part 15a Cylindrical part 15b Inner flange 16 Valve stem 17 Connection part 30 Space 31 Insertion part

Claims (3)

A cap for an aerosol container comprising a cap body attached to the aerosol container and a button attached to the valve stem of the aerosol container,
The cap body includes a fitting part for attaching to the aerosol container, a button attaching part to which the button is attached, and an surrounding wall surrounding the button in a state of being attached to the aerosol container ,
The surrounding wall is formed with an injection opening and an operation recess for receiving a finger ,
The button includes an upper wall that receives a push-down operation with a finger, a peripheral wall that extends downward from the upper wall, an outer flange that protrudes radially outward from the peripheral wall, and a connection that is fitted to the valve stem of the aerosol container. And an injection nozzle for injecting the contents of the aerosol container through the connection part,
The button mounting portion includes a cylindrical portion that guides the button in the vertical direction, and an inner flange that protrudes radially inward from the cylindrical portion at a position above the outer flange of the mounted button. The button is housed so that it can be pulled out downward,
The outer flange and the inner flange are positioned so that one of the aerosol container and the cap body approaches the other in an inverted state and is in contact with each other at least by a stem push-down distance for injection. Has been
The injection opening is in a position facing the injection nozzle in a non-use state and a normal injection state, and is positioned closer to the container body than the injection nozzle when the outer flange and the inner flange are in contact with each other in the inverted state. A cap for an aerosol container, characterized in that the cap is formed. On the surrounding wall of the cap body, when the aerosol container is pushed into the cap body in an inverted state with respect to the other, a fitting portion that engages with the tightening portion of the mountain cap of the aerosol container is provided. Provided,
In the upright state of the cap body, the distance from the upper end of the inner flange to the lower end of the fitting portion is such that the tightening portion of the mountain cap of the aerosol container from the upper end of the outer flange in the button at the time of contents injection The cap for an aerosol container according to claim 1, wherein the distance is equal to the distance to the lower end of the aerosol container. An aerosol injection apparatus, wherein the cap according to claim 1 or 2 is attached to an aerosol container containing a content for injection.

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