JPH0490864A - Spray nozzle - Google Patents

Abstract

PURPOSE:To obtain a spray nozzle having good liquid cutting properties by forming the part forming the tip emitting orifice of the spray nozzle from an elastic member and closing the tip emitting orifice in a normal state by the elastic force of the elastic member, and opening the same at the time of spraying by the liquid pressure of content. CONSTITUTION:A spray nozzle 1 is detached and a container main body 2 is filled with a hair conditioner along with inert gas, or the main body 2 is filled with them from the injection port provided to the arbitrary position thereof. When the container main body 2 is filled with content, the valve disc 6 of a nozzle opening and closing mechanism is brought into contact with a packing 2e under pressure to close a content flow path 3. When the press part 4 of the nozzle opening and closing mechanism is pressed against a return spring 7, the valve disc 6 is separated from the packing 2e through a valve stem 5 to open the flow path 3 and the hair conditioner flows in the content flow path 3 to reach an emitting part 1a and the tip emitting orifice 1b of the nozzle 1 is opened by the liquid pressure of the hair conditioner to emit the hair conditioner. When the pressing force applied to the press part is released, the hair conditioner remaining in the content flow path 3 is perfectly cut off from the emitted one.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a spray nozzle that is attached to a container body filled with a chemical solution or the like to spray and discharge the contents outside the container.

[Problems to be solved by conventional techniques and inventions] In recent years,
BACKGROUND ART Spray containers filled with cosmetics such as mousse-like hair preparations, drugs, and the like are commercially available.

However, since mousse-like hair products have a certain viscosity, when the nozzle opening/closing mechanism is closed after being discharged to the outside of the device by pressing the nozzle opening/closing mechanism, the hair styling product enters the outlet of the spray nozzle. It may stick.

This is because although the discharge port of a conventional spray nozzle is tapered, it is always open at a predetermined diameter in order to allow the contents to pass through. In other words, since the contents have a predetermined viscosity, even if the nozzle opening/closing mechanism is operated to close, the contents remaining between the opening/closing valve of the nozzle opening/closing mechanism and the discharge port will be removed from the container. This is because the contents sprayed outside are not completely separated and adhere to each other.

In such a case, the handler must wipe off the hair styling product adhering to the outlet after use, which poses a problem in that this task is troublesome.

The present invention was made to solve such problems,
Even when cosmetics or medicinal liquids having a predetermined viscosity are filled as contents, after the cosmetics, etc. are sprayed out, the cosmetics, etc. do not stick to the discharge port and remain. The purpose is to provide a good spray nozzle.

[Means for Solving the Problem] In order to achieve the above-mentioned object, the spray nozzle of the present invention has the following features:
In a spray nozzle having a nozzle opening/closing mechanism, connected to the upper end opening of a container body, and for spraying and discharging the contents filled in the container body, a portion forming a distal end outlet of the spray nozzle. is formed of an elastic member,
Under normal conditions, the tip outlet is closed due to its elastic force, but when the nozzle opening/closing mechanism is opened and sprayed, the tip outlet is opened by the flow pressure of the contents. It is characterized by becoming.

[Function] In such a configuration, first, from a filling machine for filling contents such as a drug solution,
A predetermined amount of content is filled into the container body.

When in use, when the nozzle opening/closing mechanism is opened, the contents are discharged out of the vessel by pressing the portion forming the distal end outlet of the spray nozzle made of an elastic material to open the spray nozzle.

When the nozzle opening/closing mechanism is closed, the portion forming the tip outlet is closed by its own elastic return force. Therefore, the contents remaining in the flow path of the spray nozzle and the contents discharged outside the vessel are separated by the discharge port, so that the contents may not adhere to the discharge port after use. I've never been there.

[Example] Hereinafter, the spray nozzle of the present invention will be described in more detail based on the example shown in the drawings.

In the figure, l indicates the spray nozzle of this example. As shown in FIGS. 1 and 2, this spray nozzle 1 is mounted and fixed on a lid member 2b fitted into an upper end opening 2a of a container main body 2 formed in a bottomed cylindrical shape. be done. Note that this lid member 2b is screwed and fixed to the neck portion 2c of the container body 2,
A hole 2d communicating with a content flow path 3 of a spray nozzle, which will be described later, is bored approximately in the center thereof. 2e is the lid member 2b
This is a sealing gasket disposed between the container body 2 and the neck portion 2c of the container body 2.

Reference numeral 3 denotes a content flow channel formed in the spray nozzle l, one end of which communicates with the internal space of the container body 2, and the other end of which is connected to a portion forming the tip discharge port of the spray nozzle l (hereinafter referred to as "discharge section"). ) is in communication with la.

The discharge part 1a, which communicates with the content flow path 3, is made of an elastic member such as rubber, as shown in FIG. Specifically, the rubber member is formed into a hollow, substantially conical shape, and a hole is formed at the tip of the rubber member with a needle or the like to serve as the tip discharge port 1b. As shown in FIG. 2, the tip discharge port 1b is connected to the spray nozzle l.
It is installed so that it protrudes from. In addition, this discharge part 1
In the normal state, as shown in FIGS. 3(b) and 3(d), the distal end discharge port 1b is closed due to its elastic force, while the contents that have passed through the content flow channel 3 are discharged from the discharge portion la. As shown in FIGS. 3(a) and 3(c), when the fluid flows into the interior, the distal end discharge port 1b is opened by the flow pressure. In addition, in order to further improve the liquid drainage of the inner container,
It is preferable that the peripheral edge of the tip outlet 1b be formed as thin as possible or at an acute angle.

The spray nozzle l also has a pressing part 4 that can be pressed from the outside of the spray nozzle l, and one end 5a is attached to the pressing part 4, and the other end 5b faces into the container body 2. The valve stem 5 is arranged to pass through the valve stem insertion hole IC provided in the spray nozzle 1 and the inside of the content flow channel 3, and the valve body 6 fixed to the other end 5b of the valve stem 5, for example. As shown in the drawings, a nozzle opening/closing mechanism is provided, which includes a return spring 7 disposed between the upper surface of the spray nozzle l and the pressing part 4. Note that 8 is a sealing O-ring provided to prevent the contents from leaking from the valve stem insertion hole lc.

The spray nozzle 1 of this embodiment is located at the upper end opening 2a of the container body 2.
mounted via the lid member 2b so as to be in communication with the
Used as follows:

First, the spray nozzle 1 is removed, or the container body 2 is filled with, for example, a hair conditioner together with an inert gas through an inlet (not shown) provided at an arbitrary position in the container body 2.

When the contents are filled, the internal pressure causes the valve body 6 of the nozzle opening/closing mechanism to come into pressure contact with the packing 2e, thereby closing the contents flow path 3, as shown in FIG. 2(a). Therefore, the hair styling product is kept hermetically within the container body 2. Further, the discharging portion la of the spray nozzle 1 maintains the distal end discharging port 1b in a closed state due to its elastic force.

In this normal state, when the pressing portion 4 of the nozzle opening/closing mechanism is pressed against the return spring 7, the valve body 6 is separated from the seal 2e via the valve rod 5, and the valve is opened.

As a result, the hair styling product flows into the content channel 3, and when it reaches the discharge part 1a, the flow pressure causes the distal end discharge port 1b to open and is discharged outside the device.

When the pressing force applied to the pressing portion 4 is released, the valve body 6 comes into contact with the gasket 2e again by the return spring 7, and the valve is closed. Along with this, the fluid pressure acting on the inner surface of the discharge portion la also decreases, and the tip discharge port 1b is again closed by its own elastic force. As a result, the hair styling product remaining in the content flow channel 3 and the hair styling product discharged outside the device are completely separated by the tip discharge port 1b, so that the hair styling product is disposed near the discharge portion Ia. It will not stick to and remain on the surface.

[Effects of the Invention] According to the spray nozzle of the present invention, the discharge part is made of an elastic material and has a structure that opens only when the contents are discharged and closes due to its elastic force after discharge, so that the two liquids do not run out. Extremely good.

Therefore, it is suitable for use in a spray container filled with a highly viscous content such as a mousse-like hair conditioner.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the spray nozzle of the present invention attached to a container body. Figure 2 is a cross-sectional view of the same, where (a) shows the state where the tip discharge port is closed, and (b) shows the state where the tip discharge port is closed.
indicates an open state. FIG. 3 shows the discharge part used in the same example, and (a) and (b) are cross-sectional views.
(c) and (d) respectively show perspective views. l...Spray nozzle la...Discharge part 1b...Tip discharge port 2-...Container body 3...Contents flow path 4... ... Pressing part 5 ... Valve stem 6 ... Valve body 7 ... Return spring Patent applicant: Fuji Latex Co., Ltd. Representative patent attorney: Minoru Chida ( C) n Figure (d)

Claims (1)

[Scope of Claims] A spray nozzle having a nozzle opening/closing mechanism, connected to an upper end opening of a container body, and for spraying and discharging contents filled in the container body, comprising: a tip of the spray nozzle; The part that forms the discharge port is made of an elastic member, and under normal conditions, the tip discharge port is closed by its elastic force, but when the nozzle opening/closing mechanism is opened and sprayed, the flow of the contents is A spray nozzle, characterized in that the distal end outlet is opened by pressure.