JP4170104B2 - Trigger type liquid ejector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a trigger type liquid ejector having a shroud that covers a body together with an injection nozzle, and easily tries to visually identify whether the injection nozzle is open or closed from the outside of the shroud. Is.
[0002]
[Prior art]
The trigger-type ejector used in containers containing wiping agents, detergents, hair styling agents, fragrances, etc. incorporates a pump mechanism that controls suction, pressurization, and pumping of liquid into the body equipped with an injection nozzle. In addition, the piston in the pump mechanism is reciprocated in the cylinder by checking the operation lever, thereby enabling efficient discharge of the contents.
[0003]
Among the above components, 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. The body is usually provided with a shroud for the purpose of protection.
[0004]
In recent years, there has also been proposed an ejector that has the same basic structure but has a structure in which the shroud is extended to the tip of the injection nozzle to protect the injection nozzle as well (see, for example, Patent Document 1).
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-233145
[Problems to be solved by the invention]
The type of ejector in which the shroud covers only the body can be printed on the outer surface to indicate whether the injection nozzle is open or closed, regardless of where the lock arm is located. Although the open / closed state can be identified and there is no particular problem, in the type of sprayer in which the shroud also covers the injection nozzle, only the lock arm protrudes from the shroud, so whether the injection nozzle is open or closed Left a problem where only the position of the lock lever could be determined.
[0007]
An object of the present invention is to easily determine whether an ejection nozzle is in an open state or a closed state by observing not only the position of a lock lever but also a print for a liquid ejector in which the ejection nozzle and the body are covered with a shroud. We propose a new structure that can be reliably identified.
[0008]
[Means for Solving the Problems]
The present invention includes a body provided with a pump that sucks and pressurizes liquid in a container by repeatedly checking an operation lever a plurality of times, and is rotatably supported by the body through a feeding path of the body. Trigger-type liquid ejection comprising an ejection nozzle that ejects the liquid toward the outside and a lock arm that is cantilevered by the ejection nozzle and selectively switches to an open state or a closed state by rotating the ejection nozzle A vessel,
A shroud that covers almost the entire area together with the injection nozzle is disposed on the body, and a slender notch that allows the lock arm to move in accordance with the rotation of the injection nozzle and the open / close state of the injection nozzle are displayed on the shroud. A window hole ,
A trigger-type liquid ejector characterized in that a convex locking piece is provided in the vicinity of the dead end of the elongated notch to maintain the liquid ejection posture by positioning the lock arm on the shroud with the spray nozzle open. is there.
[0009]
The present invention also includes a body including a pump that repeatedly checks the operation lever a plurality of times to suck and pressurize the liquid in the container, and is rotatably held by the body through a feeding path of the body. Trigger type equipped with an injection nozzle that ejects the pumped liquid toward the outside, and a lock arm that is cantilevered by the injection nozzle and selectively switches to an open state or a closed state by rotating the injection nozzle A liquid ejector,
In the body, a shroud that covers almost the entire area together with the injection nozzle is disposed,
The shroud is provided with an elongated notch that allows movement of the lock arm accompanying the rotation of the injection nozzle, and a window hole that displays the open / closed state of the injection nozzle,
Providing a protrusion on the outer surface of the shroud,
In the trigger type liquid ejector, a curved portion is formed on the lock arm, and a locking portion is provided on the curved portion to engage with a projection of a shroud for positioning.
Preferably, the lock arm has a locking piece that is interposed between the operation lever and the body in a closed state of the injection nozzle and prevents the operation lever from being checked.
[0010]
Further, the print indicating the opening / closing state of the injection nozzle can be provided on either the outer surface of the injection nozzle or the lock arm, and it is preferable to give a different color depending on the opening / closing state of the injection nozzle.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described more specifically with reference to the drawings.
[0012]
1 and 2 are external views showing an embodiment of a trigger type liquid ejector according to the present invention. FIG. 1 shows a case where an injection nozzle is in a closed state (liquid cannot be ejected). Reference numeral 2 denotes a case where the spray nozzle is in an open state (liquid can be ejected).
[0013]
In the figure, reference numeral 1 denotes a screw-type or undercut base cap that is held at the mouth of the container, and 2 denotes a body that rotatably holds the base cap 1. Although not shown, the body 2 is composed of a piston and a cylinder, and a pump for sucking and pressurizing the liquid in the container is incorporated.
[0014]
An operation lever 3 is elastically supported by the body 2 so as to be swingable via a pivot shaft. 4 is rotatably held by the body 2 and the liquid fed through the feeding path of the body 2 is sent to the outside. injection nozzle for ejecting toward open by 5 for rotating the nozzle 4 is cantilevered held in the injection nozzle 4 state, selectively switches the lock arm one of the closed state, 6 injection nozzle 4 body 2 The shroud 6 covers the shroud 6 with an elongated notch 6 a for allowing the lock arm 5 to move as the spray nozzle 4 rotates, and the outer surface of the spray nozzle 4 or the lock arm 5. A window hole 6b is provided for exposing the print provided on the base and displaying whether the spray nozzle 4 is open or closed.
[0015]
Further, reference numeral 7 in FIG. 2 denotes a block-like locking piece shown as an example integrally provided on the inner side 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 checked. It has become.
[0016]
In the state shown in FIG. 1, the feeding path between the injection nozzle 4 and the body 2 is blocked (not shown), and the locking piece 7 provided on the lock arm 5 is between the operating lever 3 and the body 2. In this case, the liquid cannot be ejected. At this time, since the closed print is displayed from the window hole 6b of the shroud 6, it can be easily identified that it is in the closed state by visual observation.
[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 along the notch 6 a to make the injection nozzle 4 communicate with the feeding 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 identified that it is open by visual observation.
[0018]
The printing can be identified more easily by giving different colors for each open / closed state.
[0019]
FIG. 3 is an enlarged view of the notch 6 a of the shroud 6. A convex locking piece 8 as shown in FIG. 3 is provided in the vicinity of the dead end (upper end) of the notch 6a, and more preferably, the lock arm 5 is provided with a concave portion that fits into the locking piece 8 to thereby inject the injection nozzle 4. By positioning the lock arm 5 on the shroud 6 in the open state, the liquid ejection posture is reliably maintained.
[0020]
In positioning the lock arm 5 on the shroud 6, in addition to the one shown in FIG. 3 above, a projection 9 is provided on the outer surface of the shroud 6 as shown in FIGS. The bending portion 5a may be formed and a locking portion may be provided on the bending 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 that shown in FIG. In particular, in the configuration shown in FIG. 4, the length of the notch 6 a can be shortened compared to that shown in FIG. 3, so that the rigidity of the shroud 6 can be increased.
[0021]
【The invention's effect】
According to the present invention, even if a shroud that protects the ejection nozzle is disposed, it is possible to reliably identify whether the ejection nozzle is in the open state or the closed state by printing regardless of the posture of the lock arm. 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 injection nozzle in a closed state.
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 showing a main part of the shroud.
4A and 4B show a specific configuration relating to positioning means, in which FIG. 4A shows the shape of the main part of the shroud, and FIG. 4B shows the locking part of the lock arm and the protrusion part of the shroud. It is the figure which showed the state 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 Protruding part

Claims (5)

A body equipped with a pump that sucks and pressurizes the liquid in the container by repeatedly checking the operation lever a plurality of times, and the liquid that is rotatably held by the body and fed through the feeding path of the body. A trigger type liquid ejector comprising: an ejection nozzle that ejects toward a nozzle; and a lock arm that is cantilevered by the ejection nozzle and selectively switches to an open state or 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 disposed,
The shroud is provided with an elongated notch that allows movement of the lock arm accompanying the rotation of the injection nozzle, and a window hole that displays the open / closed state of the injection nozzle ,
A trigger type liquid ejector characterized in that a projecting locking piece is provided in the vicinity of the dead end of the elongated notch to maintain a liquid ejection posture by positioning the lock arm on the shroud with the spray nozzle open .   A body equipped with a pump that sucks and pressurizes the liquid in the container by repeatedly depressing the operation lever several times, and the liquid that is rotatably held by this body through the feeding path of the body A trigger type liquid ejector comprising: an ejection nozzle that ejects toward a nozzle; and a lock arm that is cantilevered by the ejection nozzle and selectively switches to an open state or 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 disposed,
  The shroud is provided with an elongated notch that allows movement of the lock arm accompanying the rotation of the injection nozzle, and a window hole that displays the opening / closing state of the injection nozzle,
  Providing a protrusion on the outer surface of the shroud,
  A trigger-type liquid ejector characterized in that a curved portion is formed on the lock arm, and an engaging portion is provided on the curved portion to engage with a projection of a shroud for positioning.   The trigger type liquid ejector according to claim 1, wherein the lock arm includes a locking piece that is interposed between the operation lever and the body in a closed state of the injection nozzle to prevent the operation lever from being checked.   The trigger type liquid ejector according to any one of claims 1 to 3, wherein the print indicating the open / closed state of the spray nozzle is provided on the outer surface of the spray nozzle or the base of the lock arm.   The trigger type liquid ejector according to claim 4, wherein the printing has a different color in each of the opening and closing states of the ejection nozzle.

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