JP2007196189A - Trigger type liquid spray - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trigger type liquid spray capable of preventing the careless spray of a liquid when the spray is non-used, spraying the liquid with a simple operation when used, simply manifesting a lock and unlock state and easy to handle. <P>SOLUTION: A stopper E covering the tip part of a trigger D projected from a casing C to be impossible to pull the trigger is provided to be separable. In a state that the stopper E is mounted, it is impossible to touch the trigger to prevent the careless spray of the liquid. The liquid is sprayed by the simple operation that the stopper E is removed when used. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a trigger type liquid ejector.

  There has been proposed an auxiliary cover for a pump dispenser that is attached to a pump dispenser that ejects liquid in a container body by moving the nozzle head up and down and has a function of pushing the nozzle head downward by a lever portion. (For example, see Patent Document 1)

  The auxiliary cover for the pump dispenser includes a hollow base portion attached to the cap, and the lever portion is provided so as to be rotatable with respect to the base portion via a hinge portion. It pushes down.

The auxiliary cover for the pump dispenser is provided with a detachable stopper for preventing the lever portion from rotating between the base portion and the lever portion. In addition, instead of this stopper, a cylindrical safety member with a rotation stopper that can be rotated between a position that restricts movement of the lever portion and an open position that does not restrict the lever portion has the same center as the central axis of the base portion. It is provided with an axis. The safety member is formed with a stopper holding portion for holding the rotation stopper at the open position.
JP 2004-122123 A

  The above-mentioned conventional dispenser is excellent in that it can prevent the liquid from being ejected from the nozzle by unintentionally pulling the trigger, and can prevent without the nozzle cap, and as a result, there is no risk of the nozzle cap being lost. However, since the stopper or the rotation stopper is provided between the base portion and the lever portion (trigger), the lever portion is exposed and the stopper is damaged by pulling the lever portion by mistake. There is a fear. Further, the stopper is formed so as to be separable, and once it is separated, that is, opened, it does not act during use. Further, in the case of the rotation stopper, there is no such inconvenience, but there is a possibility that the rotation stopper can be easily detached by an external force such as pulling the lever portion by mistake as described above. In other words, since the rotation stopper is fitted and locked between two parallel protrusions protruding from the lever portion, it may easily come off when an external force is applied to the lever portion. There is.

  The present invention has been made in view of the above points, and can reliably prevent inadvertent liquid injection when not in use, and can perform liquid injection with a simple operation during use. We propose a trigger-type liquid ejector that is not likely to be pulled. In addition, we propose an easy-to-use trigger-type liquid ejector that can easily show the locked and unlocked states.

  The trigger type liquid ejector of the present invention includes an aerosol container body, an ejection head, a casing, a trigger, and a stopper.

  The aerosol container body is a known jetting mechanism configured such that the stem protrudes from the center of the upper surface so that it can be pushed down in the upward biased state, the built-in discharge valve opens when the stem is pushed, and the stored liquid is jetted from the stem by gas pressure The one with is used. In addition, an aerosol container body in which an annular protrusion is erected at a predetermined position in the center of the upper surface can be preferably used in order to fit and lock the casing.

  The injection head is made of synthetic resin, etc., fitted into the stem of the aerosol container body with the introduction port at the lower end of the vertical cylinder so that it can be pushed down, and the injection port is opened at the front end of the horizontal cylinder projecting forward. In addition, a flow path from the introduction port to the injection port is provided inside.

  The casing is formed of a synthetic resin or the like, and is fitted to the aerosol container body and is erected above.For example, the fitting base part fitted to the upper end part of the aerosol container body, and the fitting base part on the fitting base part It consists of a standing cover part. As a locking form when fitted to the aerosol container body, a general locking form such as a cross over engagement between the protrusions or a screw engagement between the threads can be adopted. The cover part houses the ejection head and trigger in an operable manner. As a specific configuration, it is provided with a window hole that faces the ejection port of the ejection head so that ejection can be performed, and a window hole that protrudes so that the tip end for hooking a trigger finger can be retracted. The specific shape of the casing can be adopted in various ways as long as it has the above requirements, but the vertical cylindrical gripping part standing on the aerosol container body and the horizontal cylindrical part that projects continuously forward on the gripping part. What comprises the comprised pistol type cover part can be used preferably.

  The trigger is made of synthetic resin, etc., and the base end is connected to be pivotable by means such as shaft attachment, and is provided in the casing so as to be swingable. The ejecting head is mechanically linked to the ejecting head so as to eject the liquid by depressing the ejecting head by drawing the tip. For example, the connection with the ejection head can be achieved by, for example, pushing down a projection protruding from the ejection head by a trigger that rotates, or pushing down the ejection head by a projection protruding from the trigger, or a predetermined intermediate portion between the ejection head and the trigger. Various positions can be adopted as long as the position is pivoted and the above requirements are satisfied.

  The stopper is made of synthetic resin to prevent the trigger from being pulled in and to prevent the injection head from being pushed down. Even if it is formed integrally with the casing and can be cut off, it can be attached to and detached from the casing. May be provided. The stopper is provided so that it can be detached by covering the tip of the trigger projecting from the casing so that it cannot be retracted. In other words, the user cannot contact the trigger tip protruding from the casing during mounting. As a specific shape of the stopper, when the casing is the above-described pistol type, a semicircular shape having a U shape in a plan view can be preferably employed. In the case of this type of stopper, it surrounds both sides of the trigger tip and the periphery of the front, and the tip can be cut off to the casing such as the gripping part or the fitting base through a perforation, thin wire or other cutting part Link. Alternatively, the tip is engaged with a window hole edge provided in the grip portion. At that time, if both sides of the tip are made into engagement recesses, and the stopper recesses are elastically deformed so as to squeeze and each engagement recess is engaged with the opening edge of the window hole, the attachment and detachment becomes extremely easy. In addition, a sufficiently large engagement strength can be obtained at the time of engagement.

  As a first means, an aerosol container body A in which a stem 5 is protruded so as to be able to be pushed in an upwardly biased state from the upper surface, an injection head B which is provided so as to be able to be pushed down by fitting a vertical cylinder 10 on the stem 5, A casing C which houses the ejection head B and stands on the aerosol container body A, and is provided in the casing C so as to be swingable. The tip portion projects so as to be retractable outwardly of the casing. A trigger type liquid ejector including a trigger D that pushes down B and ejects liquid, and a stopper E that covers the tip end portion of the trigger D protruding from the casing C so that it cannot be pulled in is detachable. .

  As a second means, the stopper E is detachably provided on the casing C in the first means.

As a third means, in the said second means, said casing C has a vertical cylindrical gripping portion C _2A, and a transverse tube portion C _2B projecting forwardly continuously provided on the grip portion comprising, a third window holes 25 on the distal end surface of the horizontal tubular portion C _2B which is faced to the injection port 12, the front lower surface of the horizontal tubular portion C _2B is protruded to retractable tip portion of the trigger D Four window holes 26 are provided, and a second window hole 24 for fitting a stopper E is provided at the front part of the gripping part C _2A. The stopper E surrounds both sides and the front side of the trigger D tip part. A U-shape was formed, and each tip portion was engaged with both side edges of the second window hole 24 to be detachably mounted on the casing C.

  In the present invention, the presence of the stopper E cannot contact the trigger D, and as a result, the ejection head B can be reliably prevented from being pushed down, and the stem 5 can be reliably prevented from being pushed down. Can prevent injection. In addition, since the trigger D cannot be contacted, there is no possibility that the trigger D is accidentally pulled to cause inconvenience.

  In the second means, when the liquid is ejected, the stopper E is simply removed by removing the stopper E, and the stopper E can be mounted again after use. The release state can always be selected, and the usability is very good.

  In the third means, the engagement portion can be easily engaged or disengaged by pressing from both sides of the stopper E, and as a result, easy mounting and dismounting can be performed.

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

  1 to 3 show an example of the trigger type liquid ejector of the present invention. The trigger type liquid ejector 1 includes an aerosol container body A, an ejection head B, a casing C, a trigger D, and a stopper E. I have.

  The aerosol container body A has an annular projection 4 standing on the upper portion of the trunk portion 2 via the shoulder portion 3 and protrudes the stem 5 so that it can be pushed down from the center of the upper surface of the annular projection 4 in a biased state. A built-in discharge valve (not shown) is opened when the stem 5 is pushed in, and a known ejection mechanism configured to eject the stored liquid in the aerosol container body A from the stem 5 by gas pressure is provided. Further, a downward stepped portion 6 is provided around the lower portion of the outer periphery of the annular protrusion 4.

  The ejection head B is formed of a synthetic resin and is fitted to the stem 5 to push down and eject the liquid. The base end is located at the upper end of the vertical cylinder 10 in which the lower end inlet is closely fitted to the stem 5. A horizontal cylinder 11 having an opening is extended forward, the tip of the horizontal cylinder 11 is opened as an injection port 12, and the liquid from the stem 5 is configured to be injected from the injection port 12 through the vertical cylinder 10 and the horizontal cylinder 11. Further, shafts 13 are provided at the upper end portions on both sides of the vertical cylinder 10, respectively.

The casing C is formed of a synthetic resin, and includes a fitting base C ₁ fitted to the aerosol container body A and a cover C _{2 in} which the ejection head B and the trigger D are operably accommodated.

The fitting base C ₁ has a cylindrical fitting tube 20 fitted on the outer periphery of the annular protrusion 4 of the aerosol container body A suspended from the back surface of the top plate 21, and is provided on the lower end of the inner periphery of the fitting tube 20. The engaging protrusion 22 is forcibly engaged with the lower surface of the downward step portion 6 of the annular protrusion 4 to prevent the upward protrusion. Further, the vertical cylinder 10 of the ejection head B protrudes from a first window hole 23 provided in the center of the top plate 21 so as to be pushed down.

Horizontal tubular portion C _2B cover C ₂ is projecting a vertical tubular grip portion C _2A erected integrally with the top plate 21 top surface of the fitting base portion C _1, forward and continuously to the gripping portion on the C _2A And a second window hole 24 for fitting the stopper E on the front surface of the gripping part C _2A , and a third window hole 25 for facing the injection port 12 on the front end surface of the horizontal cylinder part C _2B. the fourth window holes 26 for the front lower surface of the cylindrical portion C _2B is protruded swingably tip portion of the trigger D, and bored, respectively. The second window hole 24 has a configuration in which both side edges stand up in parallel, and is configured so that the front ends of the stopper E are engaged with both edges. Also, in the gripper C _2A is erected a small diameter tube 27 to share the second window hole 24 portion. The vertical cylinder 10 of the ejection head B is disposed so as to be able to be pushed down to the gripping part C _2A and the horizontal cylinder part C _2B , and the horizontal cylinder 11 is disposed so as to be able to be pushed down at the front part in the horizontal cylinder part C _2B . The injection port faces the third window hole 25 so that it can be injected. In addition, a bearing 28 is provided at the rear part in the horizontal cylindrical part _C2B .

  The trigger D is also made of synthetic resin, and the two side plates 40 are connected by a shaft 41 at the rear, and the front plate 42 is stretched between the side plates 40 at the front to form a finger-hanging portion, It is integrated. In addition, bearings 43 are provided in the middle part in the front-rear direction of the inner surfaces of the side plates 40, respectively. Then, the shaft 41 of the trigger D is attached to the bearing 28 of the casing C, and the shafts 13 of the injection head B are attached to the bearings 43 of the trigger D so that the finger-hook portion at the tip end portion from the fourth window hole 26 is attached. It is mounted so that it can be retracted.

The stopper E is also made of synthetic resin, and surrounds both sides and the front of the tip of the trigger D, which is a portion protruding from the fourth window hole 26 of the horizontal cylindrical portion C _2B , and the second of the gripping portion C _2A . Each front end portion is engaged with both side edges of the window hole 24 and is detachably attached to the casing C. As shown in FIG. 2, the stopper E is a semi-annular shape that is U-shaped in plan view, and is configured to gradually raise the upper surface in the direction from the tip to the apex of the U-shape. A pair of engaging pieces 51 each having an engaging recess 50 facing outward is provided. Further, by pressing both sides of the tip portion, it is elastically deformed inward, so that the engaging recess 50 can be easily engaged and disengaged.

Then, by pressing the stopper E from both sides so as to correspond to the engaging recesses 50 in a state where the side plate portions and is elastically deformed to the second window hole 24 side edge of the gripping portion C _2A, the engaging if releasing the pressure The recess 50 engages both edges of the second window hole 24 so that the stopper E can be mounted on the casing C. As a result, the stopper E surrounds the trigger D and covers the injection port 12. Accordingly, the trigger D cannot be pulled and the liquid cannot be ejected.

  When the trigger type liquid ejector 1 is used, by pressing the stopper E from both sides from the state of FIG. 1, the respective engagement recesses 50 are disengaged from both side edges of the second window hole 24, and the stopper E is removed from the casing C. Can be removed. Next, when the trigger D is pulled, the stored liquid is ejected from the ejection port 12.

It is a longitudinal cross-sectional view of this invention ejector. Example 1 It is a perspective view of the stopper in this invention ejector. Example 1 It is a principal part cross-sectional view of the connection part of the stopper in this invention ejector. Example 1

Explanation of symbols

A ... Aerosol container body, 5 ... Stem,
B ... Injection head, 10 ... Vertical cylinder, 12 ... Injection port C ... Casing,
C _2A ... gripping part, 24 ... second window hole
C _2B ... Horizontal cylinder part, 25 ... Third window hole, 26 ... Fourth window hole D ... Trigger E ... Stopper

Claims (3)

An aerosol container body A having a stem 5 protruding so as to be able to be pushed in an upwardly biased state from the upper surface, an ejection head B which is provided so as to be able to be pushed down by fitting a vertical cylinder 10 on the stem 5, and the ejection head B are accommodated. The casing C is erected on the aerosol container body A, and is provided in the casing C so as to be swingable. The tip of the casing C protrudes to the outside of the casing. A trigger type liquid ejector having a trigger D to be ejected, wherein a trigger E is provided so that the tip end of the trigger D protruding from the casing C is detachably provided so as to be retractable. Type liquid ejector. The trigger type liquid ejector according to claim 1, wherein the stopper E is detachably provided on the casing C. The casing C has a vertical cylindrical gripping portion C _2A, and a transverse tube portion C _2B projecting forwardly continuously provided on the grip portion, the distal end surface of the horizontal tubular portion C _2B injection port 12 A third window hole 25 that faces the front side of the horizontal cylinder part C _2B , a fourth window hole 26 that projects the tip of the trigger D so that it can be pulled in, and a front part of the grip part C _2A A second window hole 24 is provided for fitting the stopper E. The stopper E has a U-shape in a plan view surrounding both sides and the front of the trigger D tip, and each tip is provided with a second window. The trigger type liquid ejector according to claim 2, wherein the trigger type liquid ejector is engaged with both side edges of the hole 24 and detachably attached to the casing C.

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