JP4841859B2 - Liquid ejection device - Google Patents

Description

  The present invention relates to a liquid discharge apparatus, and more particularly to a liquid discharge apparatus in which a nozzle cover for opening and closing a discharge port is attached to a pressing head with a nozzle.

2. Description of the Related Art Conventionally, liquid ejecting apparatuses that are attached to containers filled with contents such as shampoos, rinses, cosmetics, liquid skin cleansers, detergents, and detergent finishes have been known.
When the conventional liquid discharge device is left for a long time with the contents adhered to the inner surface of the nozzle, the contents solidify and adhere to the inner surface of the discharge nozzle, the nozzle hole is narrow and defective discharge, sometimes causing clogging There was a thing.
In order to eliminate such an inconvenience, a nozzle cover having a nozzle cover that opens and closes the discharge port of the discharge nozzle is attached to the nozzle head (see, for example, Patent Documents 1 and 2).
Japanese Utility Model Publication No. 6-34854 JP-A-10-258866

  However, the above-described conventional liquid discharge device has poor operability because the nozzle cover portion of the nozzle cover moves upward while contacting the discharge port and the nozzle cover does not open sufficiently. .

  Further, when the nozzle cover is closed, the residual liquid at the discharge port is scraped off, and the residual liquid is sometimes accumulated and adhered to the upper portion of the nozzle cover of the nozzle cover to be solidified.

  In addition, when an inadvertent force is applied to the cover during transportation, display, storage during use, etc., the pump may be activated and the content liquid may be discharged.

  An object of the present invention is to solve the above-mentioned problems, and when not in use, covers the discharge port of the discharge nozzle to prevent solidification of the content liquid. To provide a liquid discharge device that smoothly opens and closes the discharge port without sliding and improves operability, and further prevents the pump from operating and discharging the content liquid even if an inadvertent force is applied. Objective.

In order to solve the above-described problems, the present invention provides, as a liquid ejection device, a container body, a pump attachment body that attaches a pump mechanism to the container mouth, a cover body attached to the pump attachment body, and a pump A liquid ejection apparatus comprising a pressing head provided continuously with a mechanism and having a nozzle, and a nozzle cover covering the pressing head, the cover body comprising an inner peripheral wall and an outer peripheral wall, A window part is provided, a groove part is provided on the opposite side, a vertically long shaft hole is formed in the side wall surface extending in the nozzle direction of the inner peripheral wall in the vertical direction, and a stopper is provided below the nozzle side near the window part. The stopper has an upper surface as a locking surface and is provided with an inclined surface and a movement restricting portion that hangs down following the inclined surface, and the push-down head is fitted to the stem of the pump mechanism, A shaft pin that engages with the longitudinal shaft hole is projected. The nozzle cover is composed of a cover main body portion having a top wall and a side wall covering the pressing head and a nozzle cover portion, and the side wall of the cover main body portion has a bearing hole that engages with the shaft pin at the center portion. Is provided with a control projection that engages with the stopper below, and a locking edge that engages with the locking surface of the stopper is formed on the lower end surface of the nozzle-side front end of the cover body side wall, The control protrusion has a predetermined gap with the inclined surface of the stopper when the locking edge is engaged with the locking surface of the stopper, and the locking edge is separated from the locking surface of the stopper. Then, when the nozzle cover rotates by a predetermined angle , a configuration is adopted in which the inclined surface of the stopper and the movement restricting portion are engaged.

  The liquid discharge device of the present invention covers the discharge port of the discharge nozzle when it is not in use, prevents the liquid content from solidifying, and when the nozzle cover is pressed, the nozzle cover does not slide on the tip of the discharge nozzle and opens and closes the discharge port. Smoothly and the remaining liquid was not scraped off.

Since the nozzle cover is wide open, the space between the nozzle and the discharge nozzle is sufficient, and the nozzle cover does not get in the way and the operability is excellent.
Since the pump does not operate during transportation, exhibition, storage after the start of use, etc., the content liquid is not discharged and contaminated.

Next, the liquid ejection apparatus of the present invention will be described.
The present liquid discharge apparatus stores contents such as shampoo, rinse, cosmetics, liquid skin cleanser, detergent, and detergent finish, and will be described below with reference to the drawings.

As shown in FIGS. 1-3, the liquid discharge apparatus of this invention is comprised from the container main body 1, the pump mechanism 2, the pump attachment body 3, the cover body 4, and the pressing-down head 5 and the nozzle cover 6 which provided the nozzle. Has been.
The container body 1 includes a body part 7 and a container mouth part 9 provided with screws 8.

  The pump mounting body 3 includes an inner cylinder 11 provided with a screw 10 that is screwed into a screw 8 of a container mouth portion 9 in which the pump mechanism 2 is accommodated, and an outer cylinder 14 provided with an annular protrusion 13 on an upper reduced diameter portion 12. And is formed from.

  The cover body 4 is formed of a double wall and includes an inner peripheral wall 15 and an outer peripheral wall 16. A window portion 17 is formed on the nozzle side of the peripheral wall, and the nozzle cover 6 is swung on the opposite side. The groove portion 18 is provided.

The inner peripheral wall 15 is composed of a side wall surface 15a extending from the groove portion 18 in the nozzle direction and a rear wall surface surrounded by the both groove portions 18, and a vertical long shaft hole 19 extending in the vertical direction is formed in the side wall surface 15a. On the lower side of the nozzle near the window portion 17, a hook-shaped stopper having an upper surface as a flat locking surface 20, a lower surface as an inclined surface 21 at which the window portion 17 side is lowered, and a hanging portion as a movement restricting portion 22. 23 is provided.
An annular recess 25 that engages with the annular protrusion 13 of the pump attachment body 3 is provided on the inner surface side lower side 24 of the outer peripheral wall 16.

The push-down head 5 includes a head 27 fitted to the stem 26 of the pump mechanism 2 and a nozzle 29 that is connected to the head 27 and has a discharge port 28 at the tip.
A shaft pin 30 that engages with a longitudinal shaft hole 19 formed in the inner peripheral wall 15 of the cover body 4 protrudes from the side peripheral wall of the head portion 27. A recess 31 is provided with a protruding rib 31a for prevention.

The nozzle cover 6 includes a cover main body portion 32 that covers the head portion 27 and a nozzle cover portion 34 that is connected to the cover main body portion 32 and has a lid plate 33 at the tip.
The cover main body 32 is formed of a substantially semicircular side wall 35 and a top wall 36, and a bearing hole 37 into which the shaft pin 30 is inserted is drilled in a circular center portion of the side wall 35, and above it. Is provided with a protrusion 38 that engages with the recess 31.

  A locking edge 39 that engages with the locking surface 20 of the stopper 23 and is prevented from moving downward is formed on the nozzle side of the side wall 35, and below the sliding surface on the inclined surface 21 of the stopper 23. A control protrusion 40 that is in dynamic engagement with the movement restricting portion 22 is provided.

The nozzle cover 6 rotates around the shaft pin 30 or the movement control portion 22 of the stopper 23, and the side wall 35 can swing within the groove portion 18 of the cover body 4.
In order to facilitate the rotation of the nozzle cover 6, a plurality of protrusions 41 for preventing slipping are provided on the upper surface of the top wall 36.

  The nozzle cover 34 is formed such that when the nozzle cover 6 starts to rotate around the shaft pin 30, the cover plate 33 rises slightly away from the surface of the discharge port 28 of the nozzle 29. Yes.

Next, the function and effect of the liquid ejection device of the present invention will be described.
As shown in FIG. 1, in a state where the pressing head 5 is covered with the nozzle cover 6, the lower end surface of the locking edge 39 provided on the side wall 35 of the nozzle cover 6 abuts on the locking surface 20 of the stopper 23. Therefore, the nozzle cover 6 cannot press the pressing head 5 even when receiving a force from above.
Therefore, since the pump does not operate, the content liquid is not discharged.

  Further, the protrusion 38 of the nozzle cover 6 is positioned between the end of the recess 31 of the pressing head 5 and the rib 31a so as to be in contact with the rib 31a. 6 does not circulate in a delusion.

When the discharge device is used, as shown in FIG. 4, when the nozzle cover 6 is rotated in the opposite direction of the nozzle, first, the nozzle cover 34 is raised by rotating about the shaft pin 30 as a center. .
At this time, the cover plate 33 of the nozzle cover 34 is separated from the surface of the discharge port 28 of the nozzle 29 and is not slidably contacted, so that it can be operated lightly.

  Next, when the rotation is further continued, as shown in FIG. 5, the control protrusion 40 moves smoothly while sliding along the inclined surface 21 of the stopper 23, so that the bearing hole 37 of the side wall 35 is always pushed. The shaft pin 30 engages with the shaft pin 30 of the lowering head 5, and the shaft pin 30 is guided by the vertically long shaft hole 19 and descends. Be lowered.

When the control projection 40 comes into contact with the movement restricting portion 22, the rotation of the nozzle cover 6 is stopped, but it can be lowered along the movement restricting portion 22, so that the push-down head 5 is pushed to a predetermined position. It can also be lowered.
Accordingly, it is possible to open the discharge port 28 of the nozzle 29 by the initial rotation of the nozzle cover 6 and press down the pressing head 5 by further rotating operation and pressing operation to discharge the content liquid.

  Further, by providing a plurality of anti-slip protrusions 41 on the upper surface of the cover main body 32, the nozzle cover 6 can be rotated more reliably, and the content liquid can be discharged smoothly. Can do.

  It is possible to cover the discharge nozzle reliably, the pump does not operate even if inadvertent force is applied, and it can ensure smooth operation, so it can be widely used as a liquid discharge device filled with contents that are easy to solidify .

It is a vertical side view of the liquid discharge apparatus of the embodiment of the present invention. It is a vertical front view of a liquid discharge apparatus. It is a rear view of a liquid discharge apparatus It is a vertical side view which shows the first operation state of a liquid discharge apparatus. It is a vertical side view which shows the final operation state of a liquid discharge apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container main body 2 Pump mechanism 3 Pump attachment body 4 Cover body 5 Push-down head 6 Nozzle cover 7 trunk | drum 8 screw 9 container opening part 10 screw 11 inner cylinder 12 reduced diameter part 13 annular protrusion 14 outer cylinder 15 inner peripheral wall 15a side wall surface 16 outer peripheral wall 17 window portion 18 groove portion 19 vertically long shaft hole 20 locking surface 21 inclined surface 22 movement restricting portion 23 stopper 24 downward 25 annular recess 26 stem 27 head 28 discharge port 29 nozzle 30 shaft pin 31 recess 32 cover main body 33 Cover plate 34 Nozzle cover 35 Side wall 36 Top wall 37 Bearing hole 38 Projection 39 Locking edge 40 Control projection 41 Projection

Claims (1)

A container body, a pump attachment body for attaching a pump mechanism to the container opening, a cover body attached to the pump attachment body, a push-down head connected to the pump mechanism and having a nozzle, and the push-down body A liquid ejection device comprising a nozzle cover covering the head,
The cover body is composed of an inner peripheral wall and an outer peripheral wall, a window is provided on the nozzle side, a groove is provided on the opposite side, and a vertically long shaft hole is formed in a vertical direction on a side wall surface extending in the nozzle direction of the inner peripheral wall. A stopper is provided below the nozzle near the window,
The stopper has an upper surface as a locking surface, and is provided with an inclined surface and a movement restricting portion that hangs down following the inclined surface ,
The push-down head is fitted to the stem of the pump mechanism, and a shaft pin that engages with the longitudinally long shaft hole projects from the side peripheral wall,
The nozzle cover is composed of a cover main body portion having a top wall and a side wall that covers the pressing head and a nozzle cover portion, and a bearing hole that engages the shaft pin is provided in the center portion of the side wall of the cover main body portion. And a control projection for engaging with the stopper is provided below,
A locking end edge that engages with the locking surface of the stopper is formed on the lower end surface of the nozzle side front end of the cover body side wall,
The control protrusion has a predetermined gap with the inclined surface of the stopper when the locking edge is engaged with the locking surface of the stopper, and the locking edge is separated from the locking surface of the stopper. When the nozzle cover is rotated by a predetermined angle , the liquid ejecting apparatus is adapted to engage with the inclined surface of the stopper and the movement restricting portion.

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