JP3681898B2 - Aerosol jet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an aerosol jet.
[0002]
[Prior art]
As an aerosol-type ejector generally used, an annular protrusion is provided around the upper end of the peripheral wall, an engagement groove is formed between the outer surface of the lower part of the annular protrusion and the outer surface of the upper end of the peripheral wall, and the central portion of the top wall is formed. A metal aerosol can that has been erected in an upward biased state and a stem fitting tube fitted to the upper end of the ejection stem is suspended from the top wall of the head, and from the outer periphery of the head top wall. A pressing head with a nozzle that hangs the outer peripheral wall of the head, and an inward flange attached to the upper end of the peripheral wall tightly fitted to the outer surface of the annular protrusion are placed on the upper surface of the annular protrusion, and the inner periphery of the inward flange Is formed with a base member made of a synthetic resin material in which an engagement protrusion provided on the inner surface of the lower end of the peripheral wall is engaged with an engagement groove. It has been.
[0003]
[Problems to be solved by the invention]
As described above, the conventional aerosol-type ejector closely fits the peripheral wall to the outer surface of the annular protrusion and engages the engaging protrusion at the lower end of the peripheral wall into the engaging groove. Therefore, there is a possibility that it becomes difficult to separate and collect the metal aerosol can and the base member made of the synthetic resin material, which are desirable.
[0004]
The aerosol-type ejector according to claim 1 makes it easy to separate the base member from the aerosol can by lifting the bowl-shaped top wall by pushing the elastic operation plate during disposal.
[0005]
The aerosol-type ejector according to claim 2 has a problem to be solved by the aerosol-type ejector according to claim 1, and also pushes the operation plate by connecting the elastic operation plate to the outer cylinder with only the elastic piece. To reduce the power required for
[0006]
The aerosol type ejector according to claim 3 has a problem to be solved by the aerosol type ejector according to claims 1 and 2, and the lower end of the rear portion of the head outer peripheral wall is connected to the inner periphery of the rear portion of the bowl-shaped top wall via an elastic piece. By connecting them, the detachment of the pressing head from the ejection stem is facilitated.
[0007]
[Means for Solving the Problems]
As a first means, the annular protrusion 3 is erected from the upper end of the peripheral wall 1 via the shoulder 2, the engagement groove 4 is formed between the lower outer surface of the annular protrusion and the inner peripheral outer surface of the shoulder, and the top wall (5) Aerosol can A that has been erected in an upwardly biased state by piercing the central portion of 5 and ejecting stem 6;
A pressing head B with a nozzle hole fitted to the upper part of the ejection stem 6;
The inner peripheral portion of the bowl-shaped top wall 12 attached to the upper end of the outer cylinder 11 with the lower end of the cylinder 11a engaged with the upper surface of the outer periphery of the shoulder 2 is placed on the upper surface of the annular protrusion 3 and the diameter of the bowl-shaped top wall 12 The inner cylinder 13 is suspended from the intermediate portion in the direction, and the inner cylinder is closely fitted to the outer peripheral surface of the annular protrusion 3, and the engagement protrusion 14 attached to the inner surface of the lower end of the inner cylinder is provided in the engagement groove 4. And the rear portion of the inner cylinder is further excised, the window portion 15 is formed in the rear portion of the bowl-shaped top wall 12 above the excised portion, and the rear portion of the outer cylinder 11 is formed from both the left and right portions of the rear edge of the window portion. A vertical groove 16 having an upper surface opening is provided vertically to the lower part of the outer cylindrical portion to form an outer cylinder portion between the two vertical grooves on the elastic operation plate 17, and a wedge-shaped plate 19 is provided at a position slightly lower than the upper end of the elastic operation plate. Protruding forward, the front end of the wedge-shaped plate faced between the front edge of the window 15 and the annular protrusion 3.
[0008]
As a second means, the first means is provided, and a transverse groove 32 is formed in the left-right inward direction from the lower ends of both the longitudinal grooves 16 so that the outer cylinder portion between the lateral grooves is suspended from the elastic operation plate 17. The engagement protrusion 35 is formed on the upper surface of the front edge of the wedge-shaped plate, and the engagement groove 30 is formed on the lower surface of the front edge of the window portion, so that the engagement protrusion and the engagement groove are formed. While engaging, the front side surface of the engagement groove was formed on the inclined surface 31 inclined obliquely downward and forward.
[0009]
As a third means, the first means or the second means is provided, and a head outer peripheral wall 10 is suspended from the outer periphery of the pressing head top wall 8, and a rear lower end of the head outer peripheral wall is formed as a bowl-shaped top wall. 12 was connected to the inner periphery of the rear part via an elastic piece 23.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4 show an embodiment of an aerosol type ejector according to claims 1 and 3 of the present invention.
A is an aerosol can, and the annular protrusion 3 is erected from the upper end of the peripheral wall 1 via the shoulder 2, and the engagement groove 4 is formed between the lower outer surface of the annular protrusion 3 and the inner peripheral outer surface of the shoulder 2. Further, the central portion of the top wall 5 that closes the upper surface of the peripheral wall 1 is provided so as to erect the ejection stem 6 in an upwardly biased state.
The aerosol can A is made of a metal material.
[0011]
B is a pressing head with a nozzle hole. A head top wall 8 that hangs down a stem fitting cylinder 7 fitted to the upper part of the jetting stem 6 is penetrated to raise the nozzle 9, and the lower end of the nozzle is stem. While communicating with the fitting cylinder 7, the head outer peripheral wall 10 is suspended from the outer periphery of the head top wall 8.
This nozzle-pressing head B is made of a synthetic resin material.
[0012]
C is a base member, and the inner peripheral part of the bowl-shaped top wall 12 attached to the upper end of the outer cylinder 11 with the lower end of the cylinder 11a engaged with the upper surface of the outer peripheral part of the shoulder part 2 is placed on the upper surface of the annular protrusion 3, The inner cylinder 13 is suspended from the radial intermediate portion of the bowl-shaped top wall 12. The inner cylinder 13 is tightly fitted to the outer peripheral surface of the annular protrusion 3 to engage the engaging protrusion 14 provided on the inner peripheral surface of the lower end of the inner cylinder into the engaging groove 4, and the rear portion of the inner cylinder 13 Excise.
[0013]
Further, a long window portion 15 in the circumferential direction is formed in the rear portion of the bowl-shaped top wall 12 above the inner cylinder excision portion, and the vertical opening of the upper surface is extended from the left and right portions of the rear edge of the window portion to the lower end portion of the rear portion of the outer cylinder 11. The split groove 16 is provided vertically, and an outer cylinder portion between the two split grooves is formed on the elastic operation plate 17. The lower portion of the front edge of the window portion 15 is formed on a first inclined surface 18 that is inclined forward and obliquely downward.
[0014]
From the position slightly lower than the upper end of the elastic operation plate 17, a circumferentially elongated wedge-shaped plate 19 is projected forward, and the upper surface of the front end of the wedge-shaped plate is formed on the second inclined surface 20 obliquely upward and backward, and the wedge The front end of the plate-like plate 19 faces between the first inclined surface 18 and the annular protrusion 3. The rear end of the wedge-shaped plate 19 is formed in a thin portion by cutting off the lower part.
Reference numeral 21 denotes a connecting tube that rises from the inner periphery of the bowl-shaped top wall 12, 22 denotes a hanging plate that hangs down from the left and right sides of the window portion 15, and the lower end of the hanging plate reaches the lower surface of the annular protrusion 3.
[0015]
Normally, the lower end of the head outer peripheral wall 10 and the upper end of the connecting cylinder 21 are connected via an elastic piece 23. The elastic piece 23 is connected to the rear lower end of the head outer peripheral wall 10 and the rear part of the connecting cylinder 21 as claimed in claim 3. In other words, it is preferably positioned in front of the middle portion in the left-right direction of the wedge-shaped plate 19 between the upper ends.
The base member C is made of a synthetic resin material.
[0016]
Next, the operation of this embodiment will be described.
In order to eject liquid or the like, after removing the cap (not shown) fitted to the upper end of the nozzle 9, it is only necessary to push down the push-down head B, and the head outer peripheral wall 10 connected to the elastic piece 23 is slightly forward. The liquid descends from the nozzle 9 while being inclined.
[0017]
In the case of disposal, the metal aerosol can A and the synthetic resin base member C are separated from the viewpoint of separation and recovery. For this purpose, the elastic operation plate 17 may be pushed forward, and a wedge shape is formed. The front end of the plate 19 pushes up the bowl-shaped top wall 12 and bites between the annular protrusion 3 and the lower part of the bowl-shaped top wall 12. As a result, the rear half of the inner cylinder 13 is detached from the annular protrusion 3, so that the base member C can be easily detached from the aerosol can A.
[0018]
Further, when the elastic piece 23 for connecting the head outer peripheral wall 10 to the connecting cylinder 21 is located at the lower end of the rear portion of the head outer peripheral wall 10 as described in claim 3, Since the rear portion of the head outer peripheral wall 10 is also lifted through 23 and the stem fitting cylinder 7 is slightly inclined forward, the stem fitting cylinder 7 can be easily detached from the ejection stem 6.
[0019]
5 to 8 show an embodiment of an aerosol type ejector according to the second and third aspects of the present invention.
Here, a different point from the aerosol-type ejector shown in FIG. 1 thru | or FIG. 4 is demonstrated. The window 15 is formed in the rear part of the bowl-shaped top wall 12, and the vertical dividing groove 16 is formed from both the left and right parts of the window part to the lower end part of the rear part of the outer cylinder 11, as in FIGS. 1 to 4. However, in the present embodiment, a third inclined surface is formed by forming a left and right engagement groove portion 30 on the lower surface in the left and right intermediate portion of the front edge of the window portion 15 and inclining the front side surface of the engagement groove portion obliquely downward and forward. 31.
[0020]
In addition, a horizontal dividing groove 32 is formed in the left-right inward direction from the lower ends of both vertical dividing grooves 16, and an outer cylinder portion between the both horizontal dividing grooves is formed in an elastic piece 33 that hangs down from the horizontal intermediate portion of the elastic operation plate 17. A left and right cutout 34 is formed in front of the elastic piece 33 so that the elastic operation plate 17 can be bent in the front-rear direction.
[0021]
Further, the point that the wedge-shaped plate 19 protrudes from a position slightly lower than the upper end of the elastic operation plate 17 is the same as described above, but in this embodiment, the engagement in the left-right direction from the upper surface of the middle portion of the front end of the wedge-shaped plate 19 is performed. In addition to projecting the ridge 35, the front end upper surface of the engagement ridge is formed on the fourth inclined surface 36 obliquely forward, and the engagement ridge 35 is engaged in the engagement groove 30. The fourth inclined surface 36 is engaged with the third inclined surface 31.
[0022]
Next, the operation of this embodiment will be described.
FIG. 5 shows a state immediately after molding, and the elastic operation plate 17 is in a lateral state in which it is detached from the outer cylinder 11. At the time of shipment, the elastic operation plate 17 is raised forward to engage the engagement protrusion 35 of the wedge-shaped plate 19 into the engagement groove 30 as shown in FIG.
At the time of disposal, the elastic operation plate 17 may be pushed forward. Then, the engaging protrusion 35 is disengaged forward from the engaging groove 30 to lift the hook-shaped top wall 12, and the hook-shaped top wall and the annular protrusion 3 Bite in between.
[0023]
【The invention's effect】
In the aerosol type ejector according to claim 1, since the wedge-shaped plate front end protruding from the elastic operation plate is faced between the window front edge and the annular protrusion, when the elastic operation plate is pushed forward at the time of disposal, The wedge-shaped plate pushes up the bowl-shaped top wall and separates the rear half of the inner cylinder from the annular projection, making it easy to separate the base member from the aerosol can, and therefore, for separate collection in consideration of recycling. Will contribute.
[0024]
In the aerosol type ejector according to the second aspect, since the elastic operation plate is connected to the outer cylinder only by the elastic piece, the force required to push the operation plate is reduced.
Since the aerosol type ejector according to claim 3 connects the lower end of the rear portion of the outer peripheral wall of the head to the inner periphery of the rear portion of the bowl-shaped top wall via the elastic piece, the elastic piece Since the stem fitting cylinder is inclined forward via the, it is easy to disengage the pressing head from the spray stem of the aerosol can.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an aerosol type ejector according to the invention of claim 1;
FIG. 2 is a bottom view of the base member and a pressing head with a nozzle, similarly.
FIG. 3 is a perspective view of the aerosol ejector shown in FIG.
FIG. 4 is a cross-sectional view of an essential part showing a state where the elastic operation plate is pushed in a little.
FIG. 5 is a longitudinal sectional view showing a state immediately after molding of an aerosol type ejector according to the invention of claim 2, in a state where an elastic operation plate is detached from an outer cylinder;
6 is a bottom view of the base member and the pressing head with nozzle shown in FIG.
FIG. 7 is a cross-sectional view of an essential part showing a state before shipment in which the elastic operation plate is raised.
FIG. 8 is a perspective view of the aerosol ejector shown in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Surrounding wall 2 Shoulder part 3 Annular protrusion 4 Engaging groove 5 Top wall 6 Ejection stem 8 Head top wall 9 Nozzle 10 Head outer peripheral wall 11 Outer cylinder 12 Gutter-shaped top wall 13 Inner cylinder 14 Engaging protrusion 15 Window 16 Vertical split groove 17 Elastic operation plate 19 Wedge-shaped plate 23 Elastic piece 30 Engaging groove portion 31 Inclined surface 32 Horizontal split groove 33 Elastic piece 35 Engaging protrusion A Aerosol can B Push-down head C with nozzle hole Base member

Claims (3)

The annular protrusion 3 is erected from the upper end of the peripheral wall 1 through the shoulder 2, the engagement groove 4 is formed between the lower outer surface of the annular protrusion and the inner peripheral outer surface of the shoulder, and the central part of the top wall 5 is provided so as to penetrate therethrough. An aerosol can A in which the ejection stem 6 is erected in an upward biased state,
A pressing head B with a nozzle hole fitted to the upper part of the ejection stem 6;
The inner peripheral portion of the bowl-shaped top wall 12 attached to the upper end of the outer cylinder 11 with the lower end of the cylinder 11a engaged with the upper surface of the outer periphery of the shoulder 2 is placed on the upper surface of the annular protrusion 3 and the diameter of the bowl-shaped top wall 12 The inner cylinder 13 is suspended from the intermediate portion in the direction, and the inner cylinder is closely fitted to the outer peripheral surface of the annular protrusion 3, and the engagement protrusion 14 attached to the inner surface of the lower end of the inner cylinder is provided in the engagement groove 4. And the rear portion of the inner cylinder is further excised, the window portion 15 is formed in the rear portion of the bowl-shaped top wall 12 above the excised portion, and the rear portion of the outer cylinder 11 is formed from both the left and right portions of the rear edge of the window portion. A vertical groove 16 having an upper surface opening is provided vertically to the lower part of the outer cylindrical portion to form an outer cylinder portion between the two vertical grooves on the elastic operation plate 17, and a wedge-shaped plate 19 is provided at a position slightly lower than the upper end of the elastic operation plate. Protruding forward, the wedge-shaped plate front end faced between the front edge of the window 15 and the annular protrusion 3;
An aerosol-type ejector characterized by that. A transverse groove 32 is formed in the left-right inward direction from the lower ends of both the longitudinally divided grooves 16, and an outer cylinder portion between the laterally divided grooves is formed in an elastic piece 33 depending from the elastic operation plate 17, and further on the upper surface of the front end of the wedge-shaped plate The engaging protrusion 35 and the engaging groove 30 are formed on the lower surface of the front edge of the window portion so that the engaging protrusion and the engaging groove are engaged with each other, and the front side surface of the engaging groove is inclined forward and downward. Formed on the inclined surface 31 inclined to
The aerosol-type ejector according to claim 1. A head outer peripheral wall 10 is suspended from the outer periphery of the pressing head top wall 8, and the rear lower end of the head outer peripheral wall is connected to the rear inner periphery of the bowl-shaped top wall 12 via an elastic piece 23.
The aerosol-type ejector according to claim 1 or 2, wherein

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