JP2004230326A - Trigger type liquid ejector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trigger type liquid ejector allowing simple, visual identification of the opened/closed state of an ejection nozzle from outside a shroud. <P>SOLUTION: This trigger type liquid ejector comprises an ejector body having a pump for sucking and compressing a liquid in a container by repeatedly pulling an operation lever by a plurality of times, the ejection nozzle rotatively held on the ejector body for ejecting the liquid compressed and transferred via a transfer passage of the ejector body to the outside and a lock arm cantilevered to the nozzle for selectively switching the nozzle to an opened state or a closed state by turning the nozzle. The ejector body is provided with the shroud covering the almost whole area of it together with the nozzle, and the shroud is provided with a long narrow notch allowing the lock arm to move along with turning of the nozzle and a window hole displaying the opened/closed state of the nozzle. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a trigger type liquid ejector having a shroud that covers a body together with an injection nozzle, and attempts to easily visually identify whether the injection nozzle is open or closed from the outside of the shroud. Things.
[0002]
[Prior art]
The trigger type ejector used in containers containing mold removers, detergents, hair styling agents, fragrances, etc. incorporates a pump mechanism that controls liquid suction, pressurization, and pressure feeding into the body equipped with the injection nozzle. The contents can be efficiently discharged by reciprocating the piston in the pump mechanism in the cylinder by pulling the operation lever.
[0003]
Of the above constituent members, the injection nozzle is rotatably held by the body, and the nozzle can be opened and closed by selectively rotating the injection nozzle with a lock arm attached to the injection nozzle, A shroud is usually placed on the body to protect it.
[0004]
In recent years, there has been proposed an ejector having the same basic configuration but having a structure in which a shroud is extended to a tip portion of an injection nozzle to protect the injection nozzle together (for example, see Patent Document 1).
[0005]
[Patent Document 1]
JP 2000-233145 A
[Problems to be solved by the invention]
The ejector with the shroud covering only the body can provide a print on its outer surface to indicate whether the injection nozzle is open or closed, regardless of where the lock arm is located Although there is no particular problem in identifying the open / closed state, the ejector of the type in which the shroud also covers the injection nozzle has the lock arm only protruding from the shroud, so whether the injection nozzle is open or closed. Had a problem in that it could only determine the position of the lock lever.
[0007]
An object of the present invention is to provide a liquid ejector in which an ejection nozzle and a body are covered with a shroud, by simply checking whether the ejection nozzle is in an open state or a closed state by visually checking not only the position of a lock lever but also printing. We propose a new structure that can be identified reliably.
[0008]
[Means for Solving the Problems]
The present invention provides a body provided with a pump for sucking and pressurizing a liquid in a container by repeatedly pulling an operation lever a plurality of times, and being pressure-fed through a feed path of the body rotatably held by the body. Nozzle that ejects the discharged liquid to the outside world, and a lock arm that is cantilevered by the ejection nozzle and has a lock arm that selectively switches between an open state and a closed state by rotating the ejection nozzle. Vessel
A shroud that covers almost the entire area together with the injection nozzle is disposed on the body, and the shroud displays an elongated notch that allows the lock arm to move along with the rotation of the injection nozzle, and an open / closed state of the injection nozzle. A trigger type liquid ejector characterized by having a window hole.
[0009]
It is preferable that the lock arm has a locking piece interposed between the operation lever and the body when the injection nozzle is in a closed state to prevent the operation lever from being pulled.
[0010]
The notch preferably has a locking piece that locks the lock arm to the shroud when the ejection nozzle is open, and the print that indicates the open / closed state of the ejection nozzle is printed on either the outer surface of the ejection nozzle or the lock arm. It is preferable that a different color be provided in each of the open and closed states of the injection nozzle.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described more specifically with reference to the drawings.
[0012]
1 and 2 show an embodiment of a trigger type liquid ejector according to the present invention in an external view. FIG. 1 shows a case where an ejection nozzle is in a closed state (liquid ejection is not possible). Reference numeral 2 denotes a case where the injection nozzle is in an open state (the liquid can be ejected).
[0013]
Reference numeral 1 in the drawing denotes a screw-cap or undercut-type base cap held at the mouth of the container, and reference numeral 2 denotes a body that holds the base cap 1 rotatably. Although not shown, the body 2 includes a piston and a cylinder, and incorporates a pump for sucking and pressurizing the liquid in the container.
[0014]
An operation lever 3 is resiliently supported by the body 2 via a pivot shaft so as to be swingable. A control lever 4 is rotatably held by the body 2 and is directed toward the outside that is pressure-fed through a feed path of the body 2. The ejection nozzle 5 to be ejected is cantilevered by the ejection nozzle 4 and is a lock arm that selectively switches between an open state and a closed state by rotating the nozzle 4, and 6 covers the body 2 together with the ejection nozzle 4. A shroud (cover) to be concealed. The shroud 6 has an elongated cutout 6 a for allowing the movement of the lock arm 5 accompanying the rotation of the injection nozzle 4, and an outer surface of the injection nozzle 4 or a base of the lock arm 5. A window hole 6b is provided for exposing the provided print and indicating whether the injection nozzle 4 is in an open state or a closed state.
[0015]
Reference numeral 7 in FIG. 2 is a block-shaped locking piece shown as an example integrally provided on the inner surface of the distal end portion of the lock arm 5. The locking piece 7 is interposed between the operation lever 3 and the body 2 in a state where the lock arm 5 is pushed down to the lowermost end so as to close the injection nozzle 4 so as to prevent the operation lever 3 from being pulled. It has become.
[0016]
In the state shown in FIG. 1, the feed path of the injection nozzle 4 and the body 2 is blocked (not shown), and the locking piece 7 provided on the lock arm 5 is provided between the operation lever 3 and the body 2. , It is impossible to eject the liquid. At this time, since a closed print is displayed from the window 6b of the shroud 6, it can be easily visually recognized that the closed state is established.
[0017]
On the other hand, in the state shown in FIG. 2, in order to rotate the injection nozzle 4, the lock arm 5 is moved upward in the drawing along the notch 6 a to make the injection nozzle 4 communicate with the feed path of the body 2. At this time, an open print is displayed from the window hole 6b of the shroud 6, and it can be easily visually recognized that the open state is established.
[0018]
The printing is given a different color for each of the open and closed states, thereby making the identification easier.
[0019]
FIG. 3 is an enlarged view of the notch 6 a of the shroud 6. In the vicinity of the dead end (upper end) of the notch 6a, a convex locking piece 8 as shown in FIG. 3 is provided. By positioning the lock arm 5 to the shroud 6 in the open state, the ejection posture of the liquid is reliably maintained.
[0020]
In positioning the lock arm 5 on the shroud 6, a projection 9 is provided on the outer surface of the shroud 6 as shown in FIGS. The curved portion 5a may be formed, and a locking portion may be provided on the curved portion 5a so that the protrusion 9 of the shroud 6 and the locking portion of the lock arm 5 are engaged with each other for positioning. Is not limited to the one shown in FIG. In particular, the configuration shown in FIG. 4 can reduce the length of the notch 6a as compared with the configuration shown in FIG. 3, so that the rigidity of the shroud 6 can be increased.
[0021]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, even if the shroud which protects an injection nozzle is arrange | positioned, regardless of the attitude | position of a lock arm, it can be reliably distinguished by printing whether the injection nozzle is in an open state or a closed state. The usability is significantly improved.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a liquid ejector according to the present invention with an ejection nozzle closed.
FIG. 2 is an external perspective view of a liquid ejector according to the present invention with an ejection nozzle in an open state.
FIG. 3 is an enlarged view of a main part of the shroud.
4A and 4B show a specific configuration of a positioning means, wherein FIG. 4A shows a main part shape of a shroud, and FIG. 4B shows a locking portion of a lock arm and a projection of a shroud. It is the figure which showed the state which engaged and positioned.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base cap 2 Body 3 Operation lever 4 Injection nozzle 5 Lock arm 5a Curved part 6 Shroud 6a Notch 6b Window hole 7 Locking piece 8 Locking piece 9 Projection

Claims (5)

A body provided with a pump for sucking and pressurizing the liquid in the container by repeatedly pulling the operation lever a plurality of times, and a liquid which is rotatably held by the body and which is pressure-fed through a feed path of the body to the outside world. A trigger-type liquid ejector comprising: an ejection nozzle that ejects water toward the nozzle; and a lock arm that is cantilevered by the ejection nozzle and selectively switches between an open state and a closed state by rotating the ejection nozzle. ,
In the body, a shroud that covers almost the entire area together with the injection nozzle is arranged,
A trigger type liquid ejector characterized in that the shroud is provided with an elongated notch that allows the lock arm to move along with the rotation of the injection nozzle, and a window hole that indicates the open / closed state of the injection nozzle. The trigger type liquid ejector according to claim 1, wherein the lock arm has a locking piece interposed between the operation lever and the body when the ejection nozzle is closed to prevent the operation lever from being pulled. The trigger type liquid ejector according to claim 1 or 2, wherein the notch has a locking piece that locks the lock arm to the shroud when the injection nozzle is open. The trigger type liquid ejector according to any one of claims 1 to 3, wherein the print indicating the open / closed state of the ejection nozzle is provided on an outer surface of the ejection nozzle or on a base of the lock arm. 5. The trigger type liquid ejector according to claim 4, wherein the printing has a different color in each of the opened and closed states of the ejection nozzle.

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