JP4716321B2 - Aerosol liquid ejector - Google Patents

Description

  The present invention relates to an aerosol type liquid ejector.

Various spraying devices that are mounted on an aerosol bottle and eject a stored liquid have been proposed. (For example, see Patent Document 1)
The injection device disclosed in Patent Document 1 is an aerosol injection device including an actuator that is fitted into a stem and presses a content to inject the content, and surrounds the outside of the actuator other than the injection nozzle portion, and the upper surface of the actuator. Attach a higher, generally cylindrical one-touch cap to the aerosol tub and project it to the side of the actuator to form an operating section that rotates the actuator around the stem, while guiding the rotation of the operating section on the one-touch cap An injection position that enables injection by pressing the actuator into the guide groove, a lock position that describes the pressing operation of the actuator, and a gas vent position that keeps the actuator pressed and vents And communicated with each other.

The guide groove is horizontally provided with a step at the central portion of the one-touch cap in the vertical direction of the peripheral wall, and an open vertical groove from the upper end of the peripheral wall reaching the guide groove is provided. The operating section has a configuration in which the operating rod protrudes from the peripheral wall of the actuator. The operating rod cannot be pushed down by fitting the operating rod into the upper position of the guide groove. If it is rotated to the position, the liquid can be ejected, and further, the actuator is rotated and fitted into the lower guide groove portion to hold the pressed state.
JP 2001-301853 A

  The above-described conventional injection device has an advantage that each state can be revealed without operating the cap by attaching or detaching the guide by guiding the operation rod to any of the injection position, the lock position, and the degassing position. However, there is a drawback in that it is difficult to perform an operation because a small operation rod must be grasped when shifting to each state. In general, there are few aerosol soots that are commercially available, and of course the overall size of the injection device becomes smaller. Further, since the two members such as the actuator and the one-touch cap have to be formed in a special shape, the manufacturing becomes complicated and the cost increases.

  The present invention has been made in view of the above-mentioned points, and since it has a simple structure and can use a conventional aerosol soot and jet head, it can be manufactured at low cost, and an aerosol type liquid ejector that is easy to handle. Propose.

  The aerosol type liquid ejector of the present invention includes an aerosol soot, an ejection head, and a cover cap.

  The aerosol bottle has a known jetting mechanism that is configured to project the stem so that it can be pushed upward from the upper surface of the trunk, and the built-in discharge valve is opened by pushing the stem, and the stored liquid is jetted from the stem by gas pressure. The provided one is used. In addition, an annular protrusion projecting from the peripheral edge of the upper surface of the body part and having a downward stepped part at the peripheral lower part is easy to lock the cover cap and can be preferably used.

  The injection head is made of synthetic resin, etc., and is fitted to the bottom of the aerosol cup stem so that it can be pushed down. The injection port is opened on the peripheral surface, and the injection port is connected to the injection port inside. The flow path is provided.

  The cover cap covers the ejection head and is detachably fitted to the upper end of the aerosol tub. For the purpose of preventing dust from adhering to the ejection head, in particular, preventing dust from adhering to the ejection port. In the present invention, it is configured so that it can be used for degassing the residual gas.

  The cover cap is formed such that a lower end edge of a predetermined width of the peripheral wall can be cut off by providing a cutting line, and the cover cap after the peripheral wall lower end edge is cut and removed is fitted to the aerosol bottle to be injected. It is constructed so as to maintain the push-down state of the head.

  The predetermined width of the peripheral wall indicates a width at which the ejection head is pushed down to be in an ejection state when the portion is cut and removed and reattached to the aerosol bottle. In this case, it is the cover cap top wall that pushes down the ejection head, or a pressing cylinder, a pressing protrusion, or the like that is suspended from the cover cap top wall, or a pressing protrusion that protrudes from the cover cap peripheral wall. It is sufficient that the ejecting head is pushed down to the ejecting state by the pressing, and a state in which the lower end portion of the cover cap peripheral wall is fitted to the aerosol can is obtained.

  The cutting line can cut and remove the peripheral wall lower end edge of the predetermined width, and can adopt various forms. For example, from the annular first cutting line provided at a predetermined position on the lower part of the cover cap peripheral wall and the lower end edge of the peripheral wall It consists of a second cutting line that reaches the first cutting line. The second cutting line may be provided immediately above the lower edge of the peripheral wall, but if it is provided with an inclination, the cutting becomes easier. It is preferable to provide a notch at the lower end of the second cutting line for easy cutting, or to project a knob at a portion adjacent to the lower end. In addition, when the first cutting line is an open ring, a cut groove from the open portion to the lower end edge of the peripheral wall is necessary. The cutting lines such as the first cutting line and the second cutting line may be in the form of thin lines or in the form of discontinuous cuts such as perforations.

  The cover cap is provided with an exhaust passage for discharging the residual gas in the aerosol tank to the outside of the cover cap, and this exhaust passage can take various forms. As an example, a space rib is projected on the inner surface of the cover cap peripheral wall above the lower edge of the peripheral wall to be cut and removed, and when the space rib is fitted to the aerosol bottle, the space rib is fitted to the outer circumference of the aerosol bottle, thereby A gap is formed between the outer surface of the aerosol tank and the exhaust path, and the gas is discharged. The space ribs may be provided at one place or a plurality of places. In the case of providing a plurality of places, the space ribs may be provided sparsely at 3 to 5 places at equal intervals in the circumferential direction or may be provided at a relatively small interval. Further, when the space rib is provided, the peripheral wall of the portion is slightly widened. Therefore, it is preferable that the peripheral wall above the peripheral wall portion to be cut and removed is formed thin and easily deformed. In that case, sufficient shape-retaining stability can be maintained by the thick portion of the lower edge before the peripheral wall lower edge is cut and removed.

  Further, as the exhaust path, a vertical groove may be formed on the inner surface of the peripheral wall above the peripheral wall portion to be cut and removed. This longitudinal groove may be provided in one place or a plurality. Further, an exhaust passage in the form of a window hole may be provided above the lower end edge of the cover cap peripheral wall to be cut and removed. In that case, it is good to provide the cover plate which connected the peripheral part with the thin wire which can carry out a press fracture | rupture for the time of normal use.

As a first means, an aerosol bowl A that protrudes the stem 3 so as to be able to be pushed down in an upwardly biased state from the upper surface, and an inlet 10 at the lower end is fitted to the stem 3 so as to be able to be pushed down. 15 is provided with an injection head B having an opening 15 and a top-covered cylindrical cover cap C in which the lower end portion of the peripheral wall 20 is detachably fitted to the outer periphery of the upper end portion of the aerosol bowl A. The lower end edge 20a is formed so as to be cut by providing a cutting line 22, and the cover cap C after the lower end edge 20a is cut and removed is fitted to the aerosol bottle A to keep the ejection head B pushed down. was composed as to constitute the exhaust passage p which is provided on the cover cap C to allow exhaust of the residual gas, the space rib 24 projecting from the cover cap wall 20 the inner surface of the bottom end portion 20a upwardly, the lower The edge 20a is cut and removed to fit to the outer periphery of the aerosol bottle A, thereby forming the exhaust passage p between the cover cap peripheral wall 20 and the outer surface of the aerosol bottle A, and the cover cap peripheral wall 20 above the lower edge 20a. The lower end edge portion 20a is thinner.

  The aerosol-type injection device of the present invention is extremely convenient to handle because the degassing operation can be performed by a simple operation of cutting and removing the lower end edge of the peripheral wall 20 of the cover cap C and attaching it to the aerosol bowl A again. . In addition, since the above-described operation can be achieved only by changing the structure of the cover cap that can be molded integrally with a synthetic resin, an existing aerosol soot and jet head can be used. Also, the structure of the cover cap is simple, and from this point of view, the manufacture is easy and inexpensive.

  Further, the space rib 24 protruding from the inner surface of the cover cap peripheral wall 20 above the lower end edge 20a is fitted to the outer periphery of the aerosol bottle A after cutting and removing the lower end edge 20a, whereby the cover cap peripheral wall 20 and the aerosol bottle A When the exhaust path p is formed with the outer surface, the space ribs 24 forming the exhaust path are normally housed inside and do not look good, and the appearance is good. Also, the exhaust path p may be formed. Since the cover cap can be formed simply by pressing down from above the aerosol bottle, the handling operation is very simple. Furthermore, since the projecting width of the space rib can be formed relatively large regardless of the wall thickness of the cover cap peripheral wall, etc., there is an advantage that an exhaust passage having a sufficiently large space can be formed.

  Further, when the space rib 24 is provided and the cover cap peripheral wall 20 above the lower end edge 20a is formed thinner than the lower end edge 20a, the space rib 24 is fitted to the outer periphery of the aerosol bowl A. When it does, the surrounding wall 20 part spreads easily, and formation of the exhaust path p becomes easier.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 4 show an example of an aerosol type liquid ejector according to the present invention, and the ejector 1 includes an aerosol bowl A, an ejection head B, and a cover cap C.

  The aerosol bottle A protrudes from the stem 3 so that it can be pushed down from the upper surface of the body part 2, and a built-in discharge valve (not shown) is opened by pushing the stem 3, so that the gas pressure causes the inside of the aerosol bottle A. The storage liquid is provided with a known ejection mechanism configured to eject from the stem 3. The upper end of the body 2 is tapered and the annular protrusion 4 that is a caulking portion is erected on the upper end, and the downward stepped portion 5 is provided around the lower periphery of the annular protrusion 4.

  The ejection head B is made of synthetic resin and is fitted to the stem 3 to push down and eject the liquid. The top wall of the vertical cylinder 11 having the lower end introduction port 10 closely fitted to the stem 3 (12) The tube is vertically suspended from the center of the back surface and has a cylindrical shape with a peripheral wall (13) suspended from the peripheral edge of the top wall (12). An opening 15 is formed in the peripheral wall 13 as an injection port 15, and the liquid from the stem 3 is configured to be injected from the injection port 15 through the vertical cylinder 11 and the nozzle cylinder 14.

  The cover cap C is also made of synthetic resin, and has a cylindrical shape with a top wall 21 extending from the upper end edge of the peripheral wall 20 by removably fitting the inner peripheral lower end of the peripheral wall 20 to the outer periphery of the upper end of the aerosol bowl A. I am doing. Further, a cutting line 22 is provided so that the lower end edge 20a of the peripheral wall 20 having a predetermined width can be cut off. The cutting line 22 includes a thin and annular first cutting line 22a spaced apart from the lower end edge of the peripheral wall 20 by a predetermined width, and a thin second cutting line 22b extending obliquely upward from the lower end edge of the peripheral wall 20 to the first cutting line 22a. It is composed. A notch 23 is formed at a position below the lower end portion of the second cutting line 22b so that the cutting line 22 can be cut more easily.

  In addition, four space ribs 24 in the circumferential direction are provided vertically above the first cutting line 22a on the inner surface of the peripheral wall 20. Each space rib 24 extends from a position directly above the first cutting line 22a to the upper portion of the peripheral wall 20, and an engaging protrusion 25 is provided at a lower predetermined position.

  When the aerosol type liquid ejector 1 is used, the stored liquid is ejected from the ejection port 15 when the cover cap C is removed from the state of FIG. After use, as shown in FIG. 2A, the lower portion of the peripheral wall 20 is fitted to the outer periphery of the annular projection 4 to prevent dust and the like from adhering to the ejection head B. Further, when the stored liquid is used up, the second cutting line 22b and the first cutting line 22a are sequentially cut to cut and remove the peripheral wall lower edge 20a, and then fitted to the aerosol bowl A. 2 (b) and FIG. 3 in an enlarged manner, the space rib 24 abuts the inner surface of the outer periphery of the annular protrusion 4 to form an exhaust passage p between the cover cap peripheral wall 20 and the annular protrusion 4. In addition, each engagement protrusion 25 engages with the lower surface of the annular protrusion 4 to prevent upward engagement. At that time, the injection head B is pushed down by the cover cap top wall 21 to open the built-in discharge valve, and the residual gas is discharged from the injection port 15 through the exhaust passage p to the outside.

It is a side view of the present invention aerosol type liquid ejector. Example 1 It is explanatory drawing explaining an effect | action of this invention aerosol-type liquid ejector. Example 1 It is a principal part expanded sectional view of this invention aerosol-type liquid ejector. Example 1 It is a perspective view of the cover cap in the aerosol type liquid ejector of the present invention. Example 1

Explanation of symbols

A ... Aerosol bowl, 3 ... Stem, B ... Injection head, 10 ... Introduction port, 15 ... Injection port,
C ... cover cap, 20 ... cover cap peripheral wall, 20a ... peripheral wall lower end edge of predetermined width,
22 ... cutting line, 24 ... space rib, p ... exhaust path

Claims (1)

And aerosol protruding stem (3) to be pushed down by the upper biasing condition from top cans (A), together with the stem (3) to the fitted lower end of the inlet (10) is mounted so as to be pushed down, the sides ejecting head having an open injection port (15) (B) and the upper end outer periphery in the peripheral wall (20) closed top cylindrical cover cap the bottom end was detachably fitted in the aerosol cans (a) (C) The lower end edge ( 20a ) of the cover cap peripheral wall ( 20 ) having a predetermined width is formed so as to be able to be cut by providing a cutting line ( 22 ), and the lower end edge ( 20a ) is cut and removed. The cap ( C ) is fitted to the aerosol tank ( A ) so as to maintain the pressed-down state of the jet head ( B ) , and residual gas is discharged from the exhaust passage ( p ) provided in the cover cap ( C ). to be able to configure By fitting the space rib (24) projecting on the inner surface of the cover cap peripheral wall (20) above the lower end edge (20a) to the outer periphery of the aerosol bowl (A) after cutting and removing the lower end edge (20a), The exhaust passage (p) is formed between the cover cap peripheral wall (20) and the outer surface of the aerosol bowl (A), and the cover cap peripheral wall (20) above the lower end edge (20a) is connected to the lower end edge (20a). aerosol liquid ejector which characterized by being formed to be thinner than).

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