JP2007126211A - Cap for aerosol container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cap for an aerosol container which has high degassing efficiency and high manufacturing performance. <P>SOLUTION: The cap 1 for the aerosol container covers an ejecting portion 3 of the aerosol container 2 by making the lower edge of a cylindrical side surface 5 of a top plate 4 engaged with the aerosol container 2. The cap 1 has a depressing portion 6 formed at the top plate 4, and a projecting portion 7 formed on the lower surface of the depressing portion 6 for depressing the ejection portion 3 to eject contents in the aerosol container 2. Further the depressing portion 6 is connected to the top plate 4 by strip-shaped connecting portions 8 which are located under the top plate 4 at symmetric locations with respect to the center of the depressing portion 6, and an area of each connecting portion 8 other than the connected portion, and the depressing portion 6 are separated from areas integrally formed together with the top plate 4. Further boundaries 9, 10 connecting the connecting portion 8 to the depressing portion 6 and the top plate 4, and the boundaries 9, 10 connecting the connecting portion 8 to the cylindrical side surface 5, are made bendable. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cap of an aerosol container filled with compressed gas together with contents, and more particularly to a cap having a function of maintaining a jetting unit such as a jetting head in a depressed state in order to discharge remaining gas. .

  When the aerosol container is discarded, it is required to discharge the residual gas as much as possible. A spray can lid for this purpose is described in Patent Document 1, and a degassing jig is disclosed in Patent Document 2. Are listed. The lids or jigs described in these patent documents form a recess for fitting the injection nozzle or stem on the upper surface, and the injection nozzle or stem is fitted in the recess. Or it is the structure which provided the latching | locking part engaged with the winding fastening part of the top plate part integral with a stem. Therefore, when performing so-called degassing with these lids or jigs, the injection button (or injection head) attached to the injection nozzle or the stem is extracted to expose the injection nozzle or the stem, and the above state is reversed in this state. When the lid or jig is fitted to the top of the spray can, the spray nozzle or stem fitted in the recess is pushed down to eject the contents, and in this state, the locking part engages with the winding part. Therefore, it is possible to maintain the pressed state of the injection nozzle or the stem, that is, the injection state of the contents.

Patent Document 3 describes a cap having a configuration in which a pressing portion is formed on the top plate portion and the pressing portion is connected to the top plate portion by a curved connecting portion. According to the cap of this patent document 3, when it is attached to an aerosol container in the same state as normal, and the pressing part is pushed down in that state, the connecting part is elastically deformed and extended, whereby the pressing part is lowered toward the ejection head. As a result, the ejection head is pressed and maintained in a state of ejecting contents, so-called degassing.
Japanese Patent No. 2941761 Japanese Patent No. 2729163 JP 2004-75161 A

  Since the lid described in Patent Document 1 and the jig described in Patent Document 2 are both configured to press the injection nozzle or stem by fitting them into the recesses, so-called degassing. In carrying out the operation, it is necessary to remove the ejection head or the ejection button, and there is a problem that the workability of degassing is poor. In addition, since it is configured to be engaged with the winding part of the top plate part in which the injection nozzle or stem is integrated, it can be used for an aerosol container or a spray can without this kind of winding part. Inconveniently, the type of applicable aerosol container is limited.

  On the other hand, the cap described in Patent Document 3 is configured to directly press the injection head or the injection button, and is configured to be able to vent the gas while attached to the aerosol container as usual. Therefore, workability is improved, and restrictions on the types of applicable aerosol containers are relaxed. However, this type of cap is easy to manufacture and is formed of a synthetic resin because of the necessity of imparting elasticity to the whole. In the cap of Patent Document 3, the pressing portion is used as the top plate portion. Since the connecting portion to be connected has a curved shape, and the connecting portion is partitioned by a gap or a weakened portion having a thin wall, when the cap is injection-molded, the fluidity of the resin to the connecting portion is poor, and the cavity There is a high possibility of forming defects such as a so-called short mold in which the resin does not spread throughout.

  Furthermore, since the pressing part in the cap described in Patent Document 3 is formed by recessing the central part of the top plate part, when the diameter of the aerosol container is reduced, the cap is reduced in diameter. In this case, the pressing portion to be pushed down has a smaller diameter. Therefore, even if the pressing part is pushed down with a finger, it is difficult for the finger to enter, especially when the nail is extended, the nail may be caught on the top plate part, and there is a problem in the degassing operability after all. There was room.

  The present invention has been made paying attention to the above technical problem, and an object of the present invention is to provide an aerosol container cap having good degassing operability and moldability.

  In order to solve the above-mentioned problem, the invention of claim 1 includes a cylindrical side surface portion that hangs down from the peripheral portion of the top plate portion, and engages the lower end portion of the cylindrical side surface portion with the aerosol container. In the aerosol container cap that covers the injection portion provided on the upper portion of the aerosol container, the top plate portion is provided with a push-down portion that is movable inside the cap, and when the push-down portion is pushed down, A projecting portion that abuts on the ejection portion and presses the ejection portion to eject the contents of the aerosol container is formed on the lower surface side of the push-down portion, and is symmetric with respect to the center portion of the push-down portion. The push-down portion is connected to the cylindrical side surface portion by a plate-like connection portion provided below the plate portion, and the connection portion and the push-down portion are parts integral with the top plate portion except for the connected portion. The boundary portion that is spaced apart from the connecting portion and connects the connecting portion to the push-down portion and the boundary portion that connects the connecting portion to the cylindrical side surface portion are configured to be bendable. is there.

  According to a second aspect of the present invention, in the first aspect of the invention, the boundary portion connecting the connecting portion to the top plate portion starts from the position where the push-down portion is separated from the injection portion. It is an aerosol container cap characterized by being located in an intermediate portion in a stroke range up to a position where the button is pushed down.

  Furthermore, the invention of claim 3 is the invention according to claim 1 or 2, wherein a portion of the top plate portion where the push-down portion is connected via the boundary portion and a portion corresponding to the connecting portion is provided. The cap for an aerosol container is recessed with respect to the other part of the top plate.

  Further, the invention of claim 4 is the invention according to any one of claims 1 to 3, wherein the push-down portion is lowered to a position where the protrusion comes into contact with the jet portion and pushes down the jet portion. An aerosol container cap characterized in that a locking portion for engaging the push-down portion and retaining the push-down portion at the lowered position is provided.

  Further, the invention according to claim 5 is the aerosol container cap according to claim 4, wherein the connecting portion has a flexible structure having rigidity lower than that of the push-down portion and the top plate portion. It is.

  According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the flexible structure includes a structure in which at least a part of the connecting portion is thinner than the depressed portion and the top plate portion. This is an aerosol container cap.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the push-down portion or the connecting portion is connected to the top plate portion or a portion integral with the top plate portion, and the push-down portion is pushed down. This is a cap for an aerosol container provided with a bridge portion that is broken by this.

  According to the first aspect of the present invention, when the load that lowers the cap is provided to the push-down portion provided on the top plate portion in a state where the cap is engaged with the aerosol container, the connecting portion is connected to the top plate portion and the push-down portion. Bending occurs at the boundary portion connected to, and the depressed portion descends toward the inside of the cap. As a result, after the protruding portion comes into contact with the injection portion, the injection portion is pushed down, so that the residual gas can be discharged from the aerosol container. And the said connection part is a plate-piece-like simple shape, and the boundary part provided in the pushing-down part side and the top-plate part side of the connection part should just be thinned and bendable, for example. Therefore, the structure is simple. Therefore, even if injection molding is performed, there is little possibility of molding defects such as a short mold, and it is easy to manufacture and can be excellent. Further, since the plate-like connecting portion is arranged so as to extend on a straight line passing through the central portion of the push-down portion, a finger is used to pressurize the area of the lowering portion for degassing, that is, the push-down portion. As a result, the degassing operability can be improved.

  According to the invention of claim 2, in a state where the depressed portion is in a normal position where the depressed portion is not pressed, the connecting portion has an end on the top plate portion side on the lower side and an end portion on the depressed portion side. It becomes the direction inclined diagonally so that it may become an upper side. For this reason, when a pressing force is applied to the pushed-down portion, the connecting portion receives a reaction force, and as a result, it is possible to prevent the pushed-down portion from being inadvertently lowered and causing degassing. On the other hand, in the state where the depressurization portion is lowered and the gas is vented, the connecting portion is inclined obliquely so that the end portion on the depressurization portion side is on the lower side, and the reaction against the push-up force by the injection portion. The force can be received at the connecting portion, and as a result, it becomes easy to hold the depressed portion at the lowered position in the degassing state.

  Further, according to the invention of claim 3, since the portion where the connecting portion is provided is depressed with respect to the other portion, it is easy to insert a finger when pressing the depressed portion, and therefore the degassing operation. A good cap can be obtained.

  According to the fourth aspect of the present invention, after the push-down portion is lowered to the degassing state, the degassing can be reliably continued even if the pressing force is released, and therefore the degassing operability is good. become.

  On the other hand, according to the invention of claim 5 or 6, when the push-down part is pressed while the cap is placed on the aerosol container, the projecting part comes into contact with the injection part and receives a reaction force. Tilts and twists the connecting part of the flexible structure. That is, the connecting portion does not act so as to maintain the posture of the push-down portion or the protruding portion, and therefore the push-down portion cannot be stably pushed down while the cap is attached to the aerosol container. As a result, even if the pressing part is accidentally pressed or a mischief that presses the pressing part is received, the injection part is continuously pressed down, or the contents are continuously jetted accordingly. Can be prevented.

  According to the invention of claim 7, since the push-down portion is connected to the top plate portion by the bridge portion, the bridge portion generates resistance against the push-down operation of the push-down portion, so that the aerosol container is transported. In this process, the push-down portion is prevented from moving up and down, and the trouble that the push-down portion is pushed down during the conveyance and the contents are ejected does not occur. Moreover, in the display state of the aerosol container, the presence or absence of mischief or an unused state can be represented by the bridge portion not being broken.

  Next, the present invention will be described with reference to specific examples shown in the drawings. FIG. 1 shows an example of the present invention, and a cap 1 shown here is configured to engage with an upper portion of an aerosol container (spray can) 2 to cover an ejection head 3 which is an ejection unit. That is, the cap 1 includes a top plate portion 4 and a cylindrical side surface portion 5 that hangs down from the periphery thereof, and has a concave shape as a whole.

  A push-down portion 6 is provided at the center of the top plate portion 4. The push-down portion 6 is a portion that can move to the inside of the cap 1 by pressing the upper surface (outer surface) thereof, and is provided at a position where the top plate portion 4 and the upper surface substantially coincide. Further, the shape of the push-down portion 6 is appropriate, and in the example shown in FIG. 1, it is substantially oval or oval. Further, the push-down portion 6 is a thin plate-like portion, and is brought into contact with the ejection head 3 by descending at the central portion of the lower surface thereof, more precisely at the position facing the ejection head 3 of the aerosol container 2. A protrusion 7 is formed to push down.

  The connecting portion 8 is connected to a symmetrical position around the central portion of the push-down portion 6, more specifically, to a linear outer edge portion parallel to each other. The connecting portion 8 is a portion made of the same material as the entire depressed portion 6 or the cap 1 and has a rectangular flat plate shape or a plate piece shape. And the boundary part 9 of the pushing-down part 6 and this connection part 8 is comprised so that bending is possible. The bent structure may be, for example, a structure in which the boundary portion 9 is thinned. After all, the boundary portion 9 is configured to function as a hinge (hinge).

  The other end of the connecting portion 8, that is, the end opposite to the boundary portion 9 is connected to a part of the top plate portion 4. A portion 4 </ b> A of the top plate portion 4 to which the connecting portion 8 is connected is a rectangular flat portion having substantially the same width as the connecting portion 8, and is located on an extension line of the connecting portion 8. The portion 4 </ b> A is formed so as to be recessed by one step from the other portions of the top plate portion 4. This is to improve the operability by making it easier to insert a finger (not shown) when pressing the push-down portion 6. In the following description, the portion 4A is referred to as a step portion 4A.

  And the boundary part 10 of the said connection part 8 and level | step difference part 4A functions as a hinge (hinge) similarly to the boundary part 9 mentioned above, Comprising: It is comprised freely. The bent structure may be a structure in which the boundary portion 10 is thinned, for example. Therefore, in a normal state where the push-down portion 6 is not pressed, the push-down portion 6 is positioned at substantially the same height as the top plate portion 4, while the stepped portion 4 </ b> A is one step lower than the other portions of the top plate portion 4. Therefore, the connecting portion 8 disposed between the pushed-down portion 6 and the stepped portion 4A is inclined so that the end portion on the pushed-down portion 6 side becomes higher in the normal state.

  The push-down portion 6 and the connecting portion 8 are movable portions that descend to the inside of the cap 1 when performing a gas venting operation. Such a configuration for allowing movement of the push-down portion 6 and the connecting portion 8 can be selected as appropriate. For example, the push-down portion 6 and the connecting portion 8 are weakened portions that are easily broken with respect to the top plate portion 4. What is necessary is just to make it the structure which connected. Or you may provide a clearance gap between the pushing-down part 6 and the connection part 8, and the top-plate part 4 previously.

  Since the above-described push-down portion 6 needs to move toward the ejection head 3, the guide wall 11 hangs down from the lower surface (inner surface) of the top plate portion 4 in order to ensure such movement. It is provided in the state. The guide walls 11 are provided on both sides of the push-down portion 6 and the connecting portion 8. The guide walls 11 are provided on a concave curved surface portion that follows the arcuate contour of the push-down portion 6 and on a straight side portion of the connecting portion 8. It is composed of a copied planar portion. Further, the guide wall 11 and the push-down portion 6 and / or the connection portion 8 may be connected in a breakable state when a push-down force is applied to the push-down portion 6. Then, on the inner surface of the concave curved portion, a ridge portion 12 is formed as a locking portion that engages with the push-down portion 6 to prevent its upward movement when the push-down portion 6 is pushed down to the degassing position. Has been. Since the protrusion 12 passes the push-down portion 6 from the upper side to the lower side and prevents the movement from the lower side to the upper side, the upper surface and the lower surface are both inclined obliquely downward. It is preferable that the cross-sectional shape has the desired function.

  The projecting portion 12 is used to keep the push-down portion 6 in the lowered position. The lowered position is that the protruding portion 7 comes into contact with the ejection head 3 and pushes it down to remove the contents from the aerosol container 2. It is a position which injects. Further, the pushed-down portion 6 is a position where it is lowered from the stepped portion 4A. Therefore, the boundary portion 10 that connects the connecting portion 8 to the stepped portion 4 </ b> A is located at an intermediate portion in the stroke range of the push-down portion 6.

  A plurality of ribs 13 extending in the vertical direction (axial direction) are formed on the inner surface of the side surface portion 5, and a protrusion provided on the upper outer surface of the aerosol container 2 at the lower end portion of each rib 13. A recess 15 that engages with the portion 14 is formed. Therefore, there is a gap between the ribs 13 and between the protrusions 14 so that the gas can be discharged to the outside. In addition, since a gap can be formed between the push-down portion 6 and the connecting portion 8 and the guide wall 11, gas can be discharged from the gap to the outside of the cap 1.

  The cap 1 is entirely formed of a synthetic resin such as polyethylene or polypropylene, so that each part can be somewhat elastically deformed. Therefore, when the aerosol container 2 is placed on the upper portion as shown in FIGS. 1 and 2, the side surface portion 5 is expanded by the projection portion 14, and then the concave portion 15 formed in the rib 13 is fitted into the projection portion 14. The cap 1 is attached to the upper part of the aerosol container 2, and the ejection head 3 is covered and protected by the cap 1.

  When the gas remaining in the aerosol container 2 is to be removed, the cap 1 is attached to the aerosol container 2 as described above, that is, the cap 1 is put on the aerosol container 2 in the same state as normal. In this state, the push-down portion 6 and the protruding portion 7 formed on the push-down portion 6 are located on the upper portion facing the ejection head 3. In this state, as described above, the connecting portion 8 is inclined so as to face upward on the pressing-down portion 6 side, so that the connecting portion 8 receives the reaction force of the pressing force on the pressing-down portion 6. For this reason, it is possible to suppress the push-down portion 6 from being inadvertently or unintentionally lowered during normal times and degassing associated therewith. When the depressing portion 6 is pressed against the reaction force by the connecting portion 8 at the time of degassing, the depressing portion 6 is lowered into the cap 1. In that case, the push-down portion 6 and the connecting portion 8 are guided toward the ejection head 3 by the guide wall 11 described above.

  The operation of lowering the push-down portion 6 in this way can be performed by attaching a finger to the upper surface of the push-down portion 6 and pressing it. In that case, not only the push-down portion 6 but also the connecting portion 8 connected thereto operates so as to incline toward the inside of the cap 1, and the step portion 4 </ b> A is lowered from the other portions of the top plate portion 4. The area into which the finger is inserted is wide, so that the pressing operation of the push-down portion 6 can be easily performed, and the pressing operation can be easily performed even when the nail is extended long.

  As shown in FIG. 2, when the push-down portion 6 is pushed down to a position exceeding the ridge 12 formed on the inner surface of the guide wall 11, the projection 7 abuts on the upper surface of the jet head 3 and pushes down the jet head 3. The contents of the aerosol container 2 are ejected from the ejection head 3 into the cap 1. That is, residual gas is discharged. The residual gas is discharged to the outside of the cap 1 through a gap between the cap 1 and the aerosol container 2 or a gap between the push-down portion 6 and the connecting portion 8 and the top plate portion 4.

  In this state, the push-down portion 6 engages with the protrusion 12 and is prevented from rising, so that the push-down portion 6 and the jet head 3 are lifted even if the lifting force of the jet head 3 acts on the push-down portion 6. Therefore, even if the pressing force applied to the pressing-down portion 6 is released, the ejection head 3 can be pressed down to continue degassing. Further, as described above, the connecting portion 8 is inclined so that the end portion on the push-down portion 6 side is on the lower side. Therefore, the connecting portion 8 receives the reaction force against the push-up force by the ejection head 3 and pushes down. Since the resistance force against the upward movement of the portion 6 is shown, the degassing state can be reliably maintained.

  As described above, according to the cap 1 according to the present invention, the upper surface of the ejection head 3 is pressed to perform degassing, so that it is not necessary to remove the ejection head 3 prior to degassing. Therefore, the workability of degassing is improved, and the present invention can be applied to the aerosol container 2 in which the ejection head 3 cannot be removed. Further, as described above, the cap 1 according to the present invention does not have a curved thin-walled portion or a curved and intricate portion, so that even when injection molding is performed, the resin filling property to the cavity is improved, As a result, a cap with good manufacturability, such as a short mold, which is less prone to molding defects can be obtained.

  The cap 1 has a shape in which the connecting portion 8 and the stepped portion 4A continue on both sides that are symmetrical with respect to the push-down portion 6, and this is an accent of the top plate portion 4. To improve.

  Next, another example of the present invention will be described. The example shown in FIG. 3 is an example in which the structure of the connecting portion 8 and the structure for locking the cap 1 in a state where the cap 1 is placed on the aerosol container are different from the above-described example. 3 that are the same as those shown in FIGS. 1 and 2 are given the same reference numerals as those in FIGS. 1 and 2 and their description is omitted. In the cap 1 shown in FIG. 3, the connecting portion 8 is formed longer than in the example shown in FIGS. 1 and 2, and the connecting portion 8 has a flexible structure. That is, at least a part of the connecting portion 8 in the cap 1 shown in FIG. 3 is configured to have lower rigidity than so-called main body portions such as the top plate portion 4 and the side surface portion 5 of the cap 1. Specifically, as shown in FIG. 4, it is thinned at the central portion of the inner surface of the connecting portion 8, that is, the intermediate portion between the boundary portions 9 and 10, and this portion is a flexible portion 8a. The flexible portion 8a is for tilting the push-down portion 6 and the protrusion 7 integral therewith by allowing the connecting portion 8 to be twisted when the pressing force applied to the push-down portion 6 deviates from the center. Therefore, the entire connecting portion 8 may be thinned.

  A structure is provided in which the push-down portion 6 is connected to the top plate portion 4 in accordance with the connection portion 8 having a flexible structure as described above. An example of this is shown in FIGS. More specifically, the bridge portions 17 connected to the top plate portion 4 or a portion integral with the top plate portion 4 such as the guide wall 11 on both the left and right sides of the end portion on the push-down portion 6 side in each connection portion 8. Are integrally formed. The bridge portion 17 is a minute connecting portion having a width of about 1 mm that is not broken by vibration during transportation and is set to a strength that can be broken when the push-down portion 6 is pressed with a finger or the like. In the example shown in FIGS. 6 and 7, a trapezoidal shape or a triangular shape having a narrow width on the top plate portion 4 side is formed.

  The cap 1 having the configuration shown in FIGS. 3 to 7 covers and protects the nozzle portion at the upper end portion of the cap 1 by covering it on an aerosol container (not shown). In that case, the locking portion 16 described above is locked to the upper end portion of the aerosol container, and the state where the cap 1 is attached to the aerosol container is maintained. In this state, even if the connecting portion 8 is flexible, the bridge portion 17 connects the push-down portion 6 to the top plate portion 4, so that the push-down portion 6 does not fall.

  Further, when the push-down portion 6 is pressed while the cap 1 is attached to the aerosol container, the bridge portion 17 is broken and the push-down portion 6 is pushed down to the nozzle side because the protruding portion 7 is not in contact with the nozzle portion. It is done. In that case, when the projecting portion 7 comes into contact with the nozzle portion, a reaction force is received from the nozzle portion. To do. Along with this, the connecting portion 8 is twisted, and the inclination of the pushed-down portion 6 and the protruding portion 7 is likely to occur. Therefore, when the push-down portion 6 is pressed while the cap 1 is placed on the aerosol container, the pressing force does not act stably on the nozzle portion due to the above inclination or the like, so that the gas is stably supplied from the aerosol container. Cannot be jetted. That is, even if the push-down unit 6 is accidentally pressed or the push-down unit 6 is pressed by mischief, it is possible to prevent the contents from being continuously or stably ejected. In other words, it is difficult to press the push-down portion 6 until it engages with the ridge portion 12, and the prevention function against erroneous operation or mischief is excellent.

  When so-called degassing is performed from the aerosol container, the push-down portion 6 cannot be stably pushed down as described above with the cap 1 attached. Therefore, the cap 1 is removed from the aerosol container and the push-down portion in that state is removed. 6 is pressed. If it does so, the bridge | bridging part 17 mentioned above will fracture | rupture and the push-down part 6 will be pushed down inside the cap 1. FIG. In that case, since the resistance force to the pressing operation does not particularly act, the pressing portion 6 and the protruding portion 7 integrated therewith can be pressed without tilting. And the peripheral part of the pushing-down part 6 spreads the protrusion part 12 currently formed in the inner surface of the guide wall 11, and it engages with the lower side. That is, it will be in the state where it was caught in the ridge part 12 and the movement to the upper side was prevented.

  The cap 1 is put on the nozzle side of the aerosol container in a state where the push-down portion 6 is pushed down into the cap 1 and locked to the protrusion 12 in this manner. In this case, since the projecting portion 7 is lowered together with the push-down portion 6, the projecting portion 7 comes into contact with the nozzle portion before the cap 1 is completely covered with the aerosol container. Is pushed down and gas begins to spout from the inside of the aerosol container. Accordingly, an upward force is applied to the push-down portion 6 from the nozzle portion, but the push-down portion 6 is engaged with the ridge portion 12 at a half circumference or more of the so-called upper surface portion. The state of pressing is stably maintained.

  In addition, the cap 1 has a locking portion 16 formed at the lower part of the inner surface of the side surface portion 5 engaged with the winding portion of the aerosol container, as in the configuration shown in FIGS. Maintained over aerosol container. In addition, when the state which attached the cap 1 to the aerosol container cannot be maintained with the latching | locking part 16, the cap 1 is pressed to the aerosol container side, the state which pushed down the nozzle part is maintained, and degassing is continued. Residual gas injected from the aerosol container is discharged to the outside of the cap 1 through a gap between the cap 1 and the aerosol container, a push-down portion 6 and a gap between the connecting portion 8 and the top plate portion 4. .

  Therefore, in the case of the configuration shown in FIGS. 3 to 7, the residual gas can be easily and reliably discharged by covering the aerosol container with the cap 1 in a state where the push-down portion 6 is pushed down into the cap 1. be able to. That is, in order to discharge the residual gas, the cap 1 is removed from the aerosol container, and in that state, the push-down part 6 is pushed down until it engages with the ridge part 12, and an operation of covering the aerosol container again is performed. Combined with the flexible structure of the connecting portion 8, it is excellent in the function of preventing the injection of contents due to erroneous operation or mischief. Further, once the push-down portion 6 is pushed down into the cap 1, the bridge portion 17 is broken, so that the bridge portion 17 performs a priller proof function (temper evidence function) for displaying an unused state and is pushed down together. Since the state where the portion 6 is connected to the top plate portion 4 can be maintained, it is possible to prevent the push-down portion 6 from moving up and down at the time of transport, and the push-down portion 6 is pushed down at the time of transport and the contents are ejected. Troubles do not occur.

  In addition, this invention is not limited to the specific example mentioned above, Comprising: The nozzle part or stem to which an injection head is attached other than said injection head may be sufficient as the injection part pressed by the pushing-down part. Further, the shape of the depressed portion is not limited to a circular shape or a semicircular shape, and may be an appropriate shape such as a rectangular shape. Moreover, the shape of a connection part can also be made into a suitable shape as needed. Further, the position and number of the bridge portions are not limited to the positions and numbers shown in the above specific examples, and the necessary number can be formed at appropriate positions in consideration of design and manufacturability.

It is sectional drawing which shows an example of this invention. It is sectional drawing which shows the state which is degassing. It is sectional drawing which shows the other example of this invention. It is a fragmentary sectional view which expands and shows the connection part. It is sectional drawing which shows the shape which cut | disconnected the cap shown in FIG. 3 in a 90-degree different position. It is a top view of the cap shown in FIG. It is a fragmentary figure which expands and shows a bridge part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Cap, 2 ... Aerosol container (spray can), 3 ... Injection head, 4 ... Top plate part, 5 ... Side part, 6 ... Push-down part, 7 ... Projection part, 8 ... Connection part, 8a ... Flexible part, 9 ... boundary part, 4A ... step part, 10 ... boundary part, 12 ... ridge part, 16 ... locking part, 17 ... bridge part.

Claims (7)

An aerosol that covers a jet part provided on the upper part of the aerosol container by having a cylindrical side part hanging from the peripheral part of the top plate part and engaging the lower end of the cylindrical side part with the aerosol container In the container cap,
The top plate portion is provided with a push-down portion that is movable inside the cap. When the push-down portion is pushed down, the top portion is brought into contact with the jet portion to press the jet portion to eject the contents of the aerosol container. The projecting portion to be formed is formed on the lower surface side of the push-down portion, and the push-down portion is formed by the plate-like connecting portion provided below the top plate portion at a symmetrical position around the center portion of the push-down portion. The connecting part other than the connected part and the push-down part are separated from the part integrated with the top plate part, and the boundary part connected to the connection part and the push-down part An aerosol container cap, wherein a boundary portion connecting a connecting portion to the cylindrical side surface portion is configured to be freely bent.   The boundary portion connecting the connecting portion to the top plate portion is located at an intermediate portion in a stroke range from a position where the push-down portion is separated from the injection portion to a position where the injection portion is pushed down. The cap for an aerosol container according to claim 1.   A portion of the top plate portion where the push-down portion is connected via the boundary portion, and a portion corresponding to the connecting portion is recessed with respect to other portions of the top plate portion. The cap for an aerosol container according to claim 1 or 2.   When the push-down portion is lowered to a position where the protrusion comes into contact with the jet portion and pushes down the jet portion, the push-down portion engages and a locking portion that holds the push-down portion in the lowered position The aerosol container cap according to claim 1, wherein the aerosol container cap is provided.   The cap for an aerosol container according to claim 4, wherein the connecting portion has a flexible structure having lower rigidity than the push-down portion and the top plate portion.   6. The aerosol container cap according to claim 5, wherein the flexible structure includes a structure in which at least a part of the connection portion is thinner than the push-down portion and the top plate portion.   The bridge part which connects the said push-down part or a connection part to the said top plate part or a part integral with the top plate part, and breaks down by pushing down the said push-down part is provided. An aerosol container cap according to any one of the above.

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