JPH063823Y2 - Aerosol device with residual gas discharge mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an aerosol device having a residual gas discharge mechanism, and more particularly, to a convenient and safe method for discharging residual gas from an aerosol device. The present invention relates to the above aerosol device having excellent safety.

[Conventional technology]

Generally, the aerosol device is filled with gas together with the contents in the aerosol canister, and at the gas pressure of the filled gas, the contents are ejected in a spray form from a nozzle ejection port attached to the aerosol canister. It is widely used when spraying pesticides, chemicals, etc.

However, such an aerosol device is normally disposed of after the gas is not completely discharged even after use, and is no longer needed, or it is aged without using it for many years and is discarded with the gas remaining. In some cases, residual gas may cause an explosion accident if left as it is.

Therefore, in order to prevent such an explosion accident due to the residual gas in the aerosol device, various residual gas venting devices for the aerosol device have been devised. For example, various venting hole opening mechanisms are provided on the bottom wall of the aerosol canister. Is being done. (Jitsuko Sho 62-25232, Jitsukai Sho 61-9
No. 0775, No. 62-38875, No. 62-62
No. 11774) [Problems to be solved by the invention] However, in any of the conventional residual gas venting devices for an aerosol device, a new venting mechanism is provided on the bottom wall of the aerosol can to provide a new gas venting device. Since a vent hole is provided, residual gas and contents may be scattered by the gas pressure in the aerosol can when the new vent hole is provided, which is dangerous. Further, the structure of the aerosol device is complicated, which is inconvenient to handle and the cost is high.

[Means for solving problems]

The present invention has been made as a result of various investigations in view of the above-mentioned current situation, and the ejection pipe protruding from the upper end of the aerosol can is
A nozzle with an uneven surface that communicates with the outside air is detachably fitted on the upper surface that faces the ejection port of the ejection pipe, and a projection that has the same diameter as the ejection pipe and that fits into the ejection pipe fitting hole of the nozzle opposes the ejection pipe. When projecting on the inner surface of the top plate, the distance between the inner surface of the top plate and the upper end surface of the ejection pipe is made shorter than the vertical length of the nozzle fitted in the ejection pipe, and the length of the projection protruding on the inner surface of the top plate is ejected. By covering the aerosol can with a lid that is shorter than the distance between the upper surface of the nozzle fitted to the pipe and the inner surface of the top plate, the residual gas of the aerosol device can be discharged very easily and safely. is there.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is an aerosol canister, and the ejection pipe 2 is projected from the upper end of the center.

3 is an L-shaped nozzle that is detachably fitted to the ejection pipe 2,
A large number of radial grooves 4 are formed on the outer peripheral surface of the ejection pipe 2 which faces the ejection port 21 and is close to the bent portion.

Reference numeral 5 denotes a lid body fitted to the aerosol can 1, and a projection 6 having the same diameter as the ejection pipe 2 is provided in the center of the inner surface of the top plate, and the length of the projection 6 is the upper surface of the nozzle 3 fitted to the ejection pipe 2. And the inner surface of the top plate, and the distance L between the inner surface of the top plate and the upper end surface of the ejection pipe 2 is shorter than the vertical length h of the nozzle 3. Reference numeral 7 denotes a through hole provided on the top plate of the lid body 5. Reference numeral 8 denotes a projecting edge projecting from the inner peripheral surface of the lower end of the lid body 5, and the lid body 5 engages the projecting edge 8 with a brim edge 9 formed on the outer peripheral surface of the upper end of the aerosol can 1 to cause an aerosol. It is fitted to the can 1. Reference numeral 10 denotes a kerf formed in an appropriate position on the inner peripheral surface of the lower end of the lid 5 as required.

Then, as shown in FIG. 2, the nozzle 3 is removed from the ejection pipe 2, and the ejection pipe fitting hole of the nozzle 3 is fitted upside down on the projection 6 projecting in the center of the inner surface of the top plate of the lid 5. The lid 5 is put on and the protruding edge 8 of the lid 5 is attached to the brim 9 of the aerosol can 1.
When the spray tube 2 is attached to the aerosol canister 1 by engaging with, the distance L between the top plate inner surface of the lid 5 and the upper end surface of the jet tube 2 is shorter than the vertical length h of the nozzle 3, so that the jet tube 2 is moved by the nozzle 3. The residual gas is slid downward and ejected until the residual gas is completely discharged from the ejection pipe 2 and disappears. Then, the discharged residual gas is further discharged into the outside air through the through hole 7 provided in the top plate of the lid 5 and the kerf 10 formed at an appropriate position on the inner peripheral surface of the lower end of the lid 5. . Therefore, the gas filled in the aerosol canister 1 can be completely discharged by replacing the nozzle 3 attached to the aerosol canister 1, and the gas filled in the aerosol canister 1 can be discharged very easily and safely. .

[Action]

The aerosol device of the present invention is constructed in this way, and normally, when the contents in the aerosol canister 1 are appropriately ejected by the gas pressure of the gas filled in the aerosol canister 1,
The protruding edge 8 of the lid 5 and the brim 9 of the aerosol can 1 are disengaged, the lid 5 is removed from the aerosol can 1, and the nozzle 3
The content in the aerosol can 1 is ejected in the form of a spray by pushing the upper end surface on which a large number of grooves 4 are engraved with a finger.

Then, after almost all the contents in the aerosol can 1 have been sprayed, or when the aerosol can 1 is to be discontinued after being used, as shown in FIG. 2, the nozzle 3 is removed from the ejection pipe 2 and turned upside down. This time, the ejection pipe fitting hole is fitted into the protrusion 6 protruding from the center of the inner surface of the top plate of the lid body 5, and then the protruding edge 8 of the lid body 5 is engaged with the brim 9 of the aerosol can 1. Combined,
When the lid 5 is attached to the aerosol canister 1, since the distance L between the inner surface of the top plate and the upper end surface of the ejection pipe 2 is shorter than the inward length h of the nozzle 3, the ejection pipe 2 slides downward by the nozzle 3. Then, the residual gas is ejected from the ejection pipe 2 until it is safely discharged and disappears. Then, the discharged residual gas is further discharged into the outside air through the through hole 7 provided in the top plate of the lid 5 and the kerf 10 formed at an appropriate position on the inner peripheral surface of the lower end of the lid 5. .

In the above embodiment, the radial grooves 4 are formed on the upper surface of the nozzle 3.
Although many nozzles are engraved, the nozzle 3 is reversed and fitted into the protrusion 6 at the center of the inner surface of the lid 5 top plate, and when the upper surface of the nozzle 3 contacts the ejection port 21 of the ejection pipe 2, it communicates with the outside air. As long as it is possible, the unevenness provided on the upper surface of the nozzle 3 is not limited to such a radial groove, and, for example, one or more projections contacting the upper end of the peripheral wall of the ejection pipe 2 are provided. May be. If the amount of residual gas is small, the lid 5
The residual gas is completely discharged without providing the through hole 7 in the top plate or carving the cut groove 10 at an appropriate position on the inner peripheral surface of the lower end of the lid 5, but when the amount of the residual gas is large Since the residual gas may fill the inside of the lid 5 and the lid 5 may blow off, at least one or more through holes are formed in the peripheral wall of the lid 5, and the inner peripheral surface of the lower end of the lid 5 is It is preferable to engrave at least one kerf 10 at an appropriate position.
It is not limited to the top plate and may be provided at any position on the peripheral wall.
Furthermore, only either the through hole 7 or the kerf 10 may be provided.

[Effect of device]

As described above, according to the present invention, a nozzle having an uneven surface communicating with the outside air is provided on the upper surface of the ejection pipe facing the ejection pipe port, and the ejection pipe fitting hole of the nozzle having the same diameter as the ejection pipe is fitted. A protrusion that fits is projected on the inner surface of the top plate that opposes the ejection pipe, and the distance between the inner surface of the top plate and the upper end surface of the ejection pipe is shorter than the vertical length of the nozzle fitted in the ejection pipe, and The residual gas discharge mechanism was configured with the lid body in which the length of the provided protrusion was shorter than the distance between the upper surface of the nozzle fitted to the ejection pipe and the inner surface of the top plate, and almost all the contents in the aerosol can were ejected. rear,
Alternatively, when discontinuing use and discarding, remove the nozzle from the ejection pipe, turn it upside down, and fit the nozzle this time to the protrusion protruding from the inner surface of the top plate of the lid, then, after that,
Attach the lid to the aerosol canister, slide the ejection pipe downward with a nozzle that has a length longer in the vertical direction than the distance between the top plate inner surface of the lid and the upper end surface of the ejection pipe, and remove residual gas from the ejection pipe. Since the gas is exhausted until it disappears, the residual gas in the aerosol can can be very easily and safely exhausted by replacing the nozzle attached to the aerosol can. Further, since the structure is extremely simple, it is easy to manufacture and can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an aerosol device having a residual gas discharging mechanism of the present invention, and FIG. 2 is a sectional view showing a usage state when discharging residual gas. DESCRIPTION OF SYMBOLS 1 ... Aerosol canister, 2 ... Ejection pipe, 21 ... Jet outlet, 3 ... Nozzle, 4 ... Groove (unevenness), 5 ... Lid body, 6 ... Protrusion

Claims (3)

[Scope of utility model registration request] 1. An ejection pipe projecting from the upper end of an aerosol can,
A nozzle with an uneven surface that communicates with the outside air is detachably fitted on the upper surface that faces the ejection port of the ejection pipe, and a projection that has the same diameter as the ejection pipe and that fits into the ejection pipe fitting hole of the nozzle opposes the ejection pipe. When projecting on the inner surface of the top plate, the distance between the inner surface of the top plate and the upper end surface of the ejection pipe is made shorter than the vertical length of the nozzle fitted in the ejection pipe, and the length of the projection protruding on the inner surface of the top plate is ejected. An aerosol device having a residual gas discharge mechanism, characterized in that a lid body shorter than a distance between an upper surface of a nozzle fitted to a pipe and an inner surface of a top plate is fitted on an aerosol can. 2. An aerosol device provided with a residual gas discharge mechanism according to claim 1, wherein the peripheral wall of the lid further has a through hole communicating with the outside air. 3. An aerosol device having a residual gas discharge mechanism according to claim 1, further comprising a cut groove formed on the inner peripheral surface of the lower end of the lid body, the cut groove communicating with the outside air.