JPH08252509A - Discharge mode changeover device of pump dispenser - Google Patents

Abstract

PURPOSE: To enable changeover of three modes; spray, stream and stop, with simple constitution by mounting an adapter for the stream having a second flow passage for forming rectilinear discharge flow at an adapter for spray having a first flow passage for forming misty discharge flow and mounting a cap for opening and closing the second flow passage on the adapter for the stream. CONSTITUTION: The adapter 20 for the stream is opened to open the discharge port 13d of the adapter 10 for spray and to discharge the misty discharge liquid discharged through the first flow passage 11 as it is in the spray mode. The adapter 20 for the stream is mounted at the adapter 10 for spray in the case of the stream mode. The vortex flow of the misty discharge flow discharged from the first flow passage 11 of the adapter 10 for the spray is attenuated by the second flow passage 21 for attenuation of the adapter 20 for stream and is discharged as rectilinear flow. A cap 30 is mounted at the adapter 20 for the stream to close the second flow passage 21 in the stop mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge mode switching device capable of varying the form of discharge liquid flow of a pump dispenser.

[0002]

2. Description of the Related Art The conventional discharge modes of this type of pump dispenser include a stream mode in which the content liquid is linearly discharged, a spray mode in which the content liquid is atomized and radially discharged from a discharge port, and a content liquid. There is a foam mode that discharges bubbles.

Such switching of the discharge mode includes a method of opening and closing a hinge cap-shaped member provided in the spout portion, a method of mounting a slide valve on the outer periphery of the spout portion and rotating the slide valve. It is used a lot.

[0004]

However, even if there is a conventional method of switching any two modes of the stream mode, the spray mode and the foam mode, if the stop mode is added to these modes, the switching of the three modes is required. Next, the structure becomes complicated.

In particular, when switching between the stream mode and the spray mode, since the stream channel and the spray channel have partially interfered with each other in the past, when the stream (straight flow) is generated, the spray (vortex) groove is formed. There was a problem that the liquid flows interfered with each other and tended to swirl, causing turbulence in the straight flow.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and its purpose is to:
It is an object of the present invention to provide a discharge mode switching device for a pump dispenser which has a simple structure and can switch three modes including a stop mode and a spray mode and a spray mode.

[0007]

In order to achieve the above object, in a discharge mode switching device for a pump dispenser provided in a pump dispenser which is attached to an opening of a container and which pumps out and discharges a predetermined amount of content liquid in the container, A spray adapter having a first flow path for generating a uniform discharge liquid flow, and the first adapter attached to the spray adapter.
And a cap for opening and closing the second flow path of the stream adapter, wherein the stream adapter has a second flow path that attenuates the mist-like discharge liquid flow from the flow path It is characterized by that.

The stream adapter is openably and closably connected to the spray adapter through a first hinge, and the cap is openably and closably connected to the stream adapter through a second hinge. .

Further, in a discharge mode switching device of a pump dispenser provided in a container dispenser for pumping and discharging a predetermined amount of a content liquid in the container, the first mode for generating a mist-like discharge liquid flow. A spray adapter having a flow path of No. 3, and a third flow path attached to the spray adapter for interfering with the atomized discharge liquid flow from the first flow path and mixing air to generate bubbles. It is provided with a foam adapter provided with the cap and a cap for opening and closing the third flow path of the foam adapter.

The foam adapter is slidably connected to the spray adapter, and the cap is openably and closably connected to the foam adapter via a hinge.

[0011]

First, the first invention for switching the spray mode and the stream mode will be described.

In the spray mode, the stream adapter is removed from the discharge port of the spray adapter, and the mist-like discharge liquid flow discharged through the first flow path of the spray adapter is discharged as it is.

Next, in the stream mode, the stream adapter is attached to the spray adapter. Then, the mist-like discharge liquid flow discharged from the first flow path of the spray adapter is used for the attenuation second flow of the stream adapter.
The force component in the direction that spreads in the form of mist is attenuated while passing through the flow path of, and becomes a straight flow, and is discharged as a straight flow.

In the stop mode, the cap is attached to the stream adapter to close the second flow path for attenuation.

Since the stream adapter and the cap are openably and closably connected via the first and second hinges,
Operation becomes easy.

Next, the second invention for switching the spray mode and the foam mode will be described.

In the spray mode, the stream adapter is removed from the discharge port of the spray adapter, and the mist-like discharge liquid flow discharged through the first flow path of the spray adapter is discharged as it is.

Next, in the foam mode, the foam adapter is attached to the spray adapter. Then, the mist-like discharge liquid flow discharged from the first flow path of the spray adapter is disturbed in the third flow path for foam generation of the foam adapter, and air is mixed in the turbulent flow. Bubbles are generated.

In the stop mode, the foam adapter is fitted with a cap to close the foam-forming channel.

Since the foam adapter is slidably connected to the spray adapter, and the cap is connected to the spray adapter via a hinge, the operation becomes easy.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments.

[First Embodiment] FIGS. 1 and 2 show a discharge mode switching device for a pump dispenser according to a first embodiment of the present invention.

The discharge mode switching device 1 is provided at the discharge port portion 4 of a pump dispenser 3 which is attached to the opening of the container 2 and which pumps out and discharges a predetermined amount of the content liquid in the container 2.

The discharge mode switching device 1 of the present invention can be applied to any type of pump dispenser, but the illustrated example illustrates the case of application to a trigger type pump dispenser.

The structure of the pump dispenser 3 will be briefly described. A trigger head 301 having a discharge port 4 extending laterally, a retainer 302 connecting the container 2 and the trigger head 301, and a retainer 302 connected to the retainer 302. And a dip tube 303.

The trigger head 301 is a hollow member, and a hollow cylinder 304 is provided inside the hollow member.
The piston member 305 is inserted into the cylinder 304 from the bottom.
Is inserted so that it can be moved up and down. This piston member 3
By vertically moving 05, the volume of the pump chamber 306 between the cylinder 304 and the piston member 305 is expanded / contracted, and the content liquid is sucked / discharged.

The vertical movement of the piston member 305 causes the trigger lever 30 pivotally supported by the trigger head 301.
Operated by 7. That is, a spring 308 is installed in the pump chamber 306 to urge the piston member 305 downward from the cylinder 304 to expand the volume of the pump chamber 306, and the trigger lever 307 resists the spring force of the spring 308. By pulling
The volume in the pump chamber 306 is contracted to discharge the content liquid. When the discharge is completed, the volume of the pump chamber 306 is expanded by the spring force of the spring 308 to become a negative pressure, and the content liquid is sucked into the pump chamber 306.

In the discharge port portion 4, the content liquid is pump chamber 306.
A discharge valve mechanism 309 is provided which is closed when sucking into the inside and opened when discharging from the pump chamber 306.

Further, the suction passage 310 in the hollow piston member 305 for communicating the dip tube 303 and the pump chamber 306 is opened when the content liquid is sucked into the pump chamber 306, and is discharged from the pump chamber 306. A suction valve mechanism 311 is provided which is closed when the operation is performed.

The discharge mode switching device 1 includes a spray adapter 10 having a first flow path 11 for generating a mist-like discharge liquid flow, and a mist-like discharge liquid flow of the spray adapter 10. The stream adapter 20 is provided with a second flow passage 21 that makes a straight flow, and a cap 30 that opens and closes the second flow passage 21 of the stream adapter 20.

The stream adapter 20 includes the first hinge 4
1, the spray adapter 10 is openably and closably connected, and the cap 30 is also openably and closably connected to the stream adapter 20 through a second hinge 42.

The spray adapter 10 comprises a hollow housing 12 having one end opened, and a cover 13 attached so as to cover the opening of the housing 12. The housing 12 has a tubular shape in which the rear end on the pump dispenser 3 side is closed and the front end is open.
Has a cylindrical shape in which the front end is closed and the rear end is opened, and they are fixed by inserting each other in the axial direction.

The discharge port portion 4 of the pump dispenser 3 is composed of a nipple portion 43 extending laterally from the upper end portion of the cylinder 304 of the trigger head 301, and a valve insert 44 inserted into and fixed to the nipple portion 43.
The housing 12 is integrally molded with the valve insert 44.

The housing 12 has a cylindrical peripheral wall portion 12a.
And a shaft portion 12b provided concentrically with the peripheral wall portion 12a,
A rear end wall 12c which closes the rear end of the peripheral wall 12b and fixes the rear end of the shaft 12b, and the discharge liquid flow from the pump dispenser 3 flows into the housing 12 through the rear end wall 12c. An inflow port 12d is provided.

On the other hand, the cover 13 has an outer cylinder portion 13a fitted to the outer circumference of the peripheral wall portion 12a, an inner cylinder portion 13b fitted to an annular gap between the shaft portion 12b and the peripheral wall portion 12a, and an outer cylinder portion. 13a and a front end wall portion 13c that closes the front end portions of the inner tubular portion 13b, and a discharge port 13d is opened at the center of the front end wall portion 13c. Also, the housing 12
The end surface of the shaft portion 12b is in contact with the front end wall portion 13c of the cover 13.

The first flow passage 11 is formed between the shaft portion 12b and the inner cylindrical portion 13b. That is, on the end surface of the shaft portion 12b, the recess 11a facing the discharge port 13d and the shaft portion 12
An inclined groove 11b extending in the tangential direction from the peripheral edge of the end face b toward the recess 11a is provided. Also, the shaft portion 12
A notch groove 11c extending in the axial direction is provided on the outer circumference of b.
One end of the cutout groove 11c communicates with the inflow port 12d, and the other end communicates with the inclined groove 11b.

The stream adapter 20 is a nozzle having a cap-shaped main body portion 22 that is openably and closably connected to the spray adapter 10 and a damping second flow passage 21 provided in the center of the main body portion 22. And a section 23.

The main body portion 22 is a hollow member having a hat-shaped cross section, and is composed of an annular wall portion 22a and a front end wall portion 22b for closing the front end portion of the annular wall portion 22a and supporting the nozzle portion 23. The nozzle portion 2 is provided at the center of the wall portion 22b.
3 are integrally provided. And the annular wall portion 22a
The upper end of the spray adapter 1 via the first hinge 41
Finger hooking part 22c connected to 0 for hanging a finger on the lower end
Is protruding.

The annular wall portion 22a and the spray adapter 10
A locking groove 51 and a locking projection 52 that engage with each other are provided in the contact portion with and, and are fixed when the stream adapter 20 is closed, and between the spray discharge port 13d and the nozzle portion 23. I am trying to position it. Further, when the stream adapter 20 is closed, the spray adapter side end of the nozzle portion 23 is connected to the discharge port 13 of the spray adapter 10.
d It is pressed to the peripheral edge and brought into close contact in a liquid-tight state.

The nozzle portion 23 has an elongated cylindrical shape, and is arranged coaxially with the spray outlet 13d.

The cap 30 has a hat-shaped cross-section having an annular wall portion 31 and a front end wall portion 32 that closes the front end portion of the annular wall portion 31, and has a back surface of the front end wall portion 32 and a tip opening portion of the nozzle portion 23. Plug body 33 to be inserted, and this plug body 33
And a fitting wall portion 34 that surrounds the periphery of and fits to the outer periphery of the nozzle portion 23.

Then, the lower end of the annular wall portion 31 is connected to the stream adapter 20 via the second hinge 42, and a finger hooking portion 35 piece for hooking a finger on the upper end is projected.

Further, a locking groove 53 and a locking projection 54 which are engaged with each other are provided at the contact portion between the annular wall portion 31 and the stream adapter 20.

The above-mentioned first and second hinges 41 and 42 are
The fulcrum 41a, 42a and the elastic support pieces 41b, 42b are provided, and the elastic support pieces 41b, 42b maintain the closed state and the open state. Elastic support piece 41b,
42b has a V-shape and one end is swingably connected to the cap 30 or the stream adapter 20 and the other end is swingably connected to the stream adapter 20 or the spray adapter 10.

Both the first and second hinges 41 and 42 are resin hinges, and the cover 1 of the spray adapter 10 is used.
3, integrally formed with the stream adapter 20 and the cap 30.

The switching operation of the mode switching device of the first embodiment is as follows.

In the case of the spray mode, the stream adapter 20 is opened to open the discharge port 13d of the spray adapter 10, and the mist-like discharge liquid flow discharged through the first flow path 11 is discharged as it is. That is, in the first flow path 11, the liquid flowing in from the inflow port 12d flows into the recess 11a from the notch groove 11c through the inclined groove 11b and can swirl in the recess 11a, so that a centrifugal force is applied to the liquid. When the liquid flow is discharged from the discharge port 13d in this state, the liquid flow is discharged in the direction in which it spreads from the discharge port 13d due to the acting centrifugal force (see FIG. 2A). Of course, it is possible to form a mist-like discharge liquid flow without forming a vortex flow, and the configuration of the first flow path 11 is not limited to this. For example, it is possible to form a mist-like discharge liquid flow simply by applying pressure from the pores and ejecting the same.

Next, in the stream mode, the stream adapter 20 is attached to the spray adapter 10. Then, the first flow path 1 of the spray adapter 10
While the mist-like discharge liquid flow discharged from No. 1 passes through the damping second flow path 21 of the stream adapter 20, the vortex flow is attenuated to become a straight flow, and is discharged as a straight flow.

In the stop mode, the cap 30 is attached to the stream adapter 20 to close the second damping flow path 21.

Stream adapter 20 and cap 3
Since 0 is openably and closably connected via the first and second hinges 41 and 42, the operation is simple.

[Second Embodiment] FIGS. 3 and 4 show a discharge mode switching device according to a second embodiment of the present invention.

In this embodiment, the form of the discharged liquid can be switched between the spray mode and the foam mode.

The discharge mode switching device 201 includes a spray adapter 210 having a first flow path 211 for generating a mist-like discharge liquid flow, and a spray adapter 21.
A foam adapter 260 having a third flow path 261 that interferes with the mist-like discharge liquid flow of 0 and mixes air to generate bubbles, and the third flow path 2 of the foam adapter 260.
And a cap 230 for opening and closing 61.

The foam adapter 260 is slidably connected to the spray adapter 210 and has a cap 23.
0 is openably and closably connected to a foam adapter 260 via a hinge 241.

The spray adapter 210 includes a hollow housing 212 having one end opened, and the housing 212.
The cover 213 is attached so as to cover the opening. The housing 212 has a tubular shape in which the rear end on the pump dispenser 3 side is closed and the front end is open.
The cover 213 has a tubular shape in which the front end is closed and the rear end is open, and the covers 213 are axially inserted and fixed.

The discharge port portion 4 of the pump dispenser 3 is composed of a nipple portion 43 that extends laterally from the upper end portion of the cylinder 304 of the trigger head 301, and a valve insert 44 that is inserted and fixed in the nipple portion 43.
The housing 212 is integrally molded with the valve insert 44.

The housing 212 has a cylindrical peripheral wall portion 212.
a and a shaft portion 212 provided concentrically with the peripheral wall portion 212a
b and the rear end of the peripheral wall portion 212a are closed and the shaft portion 21
2b and a rear end wall part 212c to which the rear end is fixed, and an inlet port 212 for allowing the discharge liquid flow from the pump dispenser 3 to flow into the housing 212 to the rear end wall part 212c.
d is provided.

On the other hand, the cover 213 has the peripheral wall portion 212.
a outer cylinder part 213a fitted to the outer periphery of the a and the shaft part 212
inner cylindrical portion 21 that fits in the annular gap between b and the peripheral wall portion 212a
3b, a front end wall portion 213c that closes the front end portions of the outer cylinder portion 213a and the inner cylinder portion 213b, and a guide wall portion 213e that extends forward from the front end wall portion 213c,
A discharge port 213d is opened at the center of the front end wall portion 213c. The end surface of the shaft portion 212b of the housing 212 is in contact with the front end wall portion 213c of the cover 213.

The first flow path 211 has a shaft portion 212.
It is formed between b and the inner cylindrical portion 213b. That is, the shaft portion 2
A concave portion 211a facing the discharge port 213d is formed on the end surface of 12b.
And an inclined groove 211b formed to be inclined with respect to the radial direction from the peripheral edge of the end surface of the shaft portion 212b toward the concave portion 211a.
Is provided. Further, a cutout groove 211c extending in the axial direction is provided on the outer circumference of the shaft portion 212b.
One end of 11c communicates with the inlet 212d, and the other end communicates with the inclined groove 211b.

Further, the peripheral wall portion 212 of the housing 212
And the air passage 2 between the outer cylinder portion 213a of the cover 213.
14 are provided. One end of the air passage 214 has an air intake port 2 provided in the outer cylinder portion 213a of the cover 213.
14a communicates with the atmosphere, and the other end communicates with an air discharge port 214b provided in the tip wall portion 213c of the cover 213. The air outlet 214b communicates with the foam adapter 260.

The foam adapter 260 is a cylindrical guide wall portion 2 of the cover 212 of the spray adapter 210.
13e is an annular member that is slidably fitted in the axial direction,
An outer ring part 262 whose inner circumference fits to the outer circumference of the guide wall part 213e.
And an inner ring portion 263 arranged inside the outer ring portion 262 with a predetermined distance therebetween, and a reinforcing rib 264 connecting the outer ring portion 262 and the inner ring portion 263. Inner ring 2
63 is formed on the circumference centering on the discharge port 213d of the spray adapter 210.

The guide wall portion 2 of the spray adapter 210 is inserted in the annular gap between the outer ring portion 262 and the inner ring portion 263.
13e is slidably fitted in the axial direction, the first position A in which the foam adapter 260 is pushed in until it comes into contact with the end surface of the spray adapter 210, and the foam adapter 260 is separated from the end surface of the spray adapter 210. It is movable between the second positions B pulled out. The positioning of the second position B is performed by engaging the engagement protrusion 213f provided on the inner circumference of the tip end portion of the guide wall portion 213e with the inner ring portion 263.

At the first position A, the inner ring portion 263 does not interfere with the atomized liquid flow in the spray mode, and the air discharge port 213d provided in the front end wall portion 213c of the spray adapter 210 is closed. .

In the second position B, the foam adapter 26
The inner ring part 263 of 0 interferes with the liquid flow in the spray mode, and the air discharge port 213d is opened to mix air with the liquid flow disturbed by the third flow passage 261 on the inner circumference of the inner ring part 263 to generate bubbles. Is generated.

The cap 230 is the foam adapter 26.
An annular wall 231 that is detachably fitted to the outer ring portion 262 of 0.
And the foam adapter 26 from the inner diameter end of the annular wall 231.
And a plug body 232 that projects toward the inner ring portion 263 of 0. The plug body 232 is the foam adapter 2
A fitting wall 233 fitted to the inner circumference of the inner ring portion 263 of 60;
An annular seal portion 23 that is liquid-tightly attached to the periphery of the discharge port 213d of the front end wall portion 213c of the spray adapter 210.
4 and.

The lower end of the annular wall 231 is connected to the foam adapter 260 via a hinge 241, and the upper end is provided with a finger hook 235.

In the second embodiment, the discharge mode is switched as follows.

In the case of the spray mode, the foam adapter 260 is moved to the first position A on the spray adapter 210 side, and is sprayed from the first flow path 211 of the spray adapter 210 through the discharge port 213d. The discharge liquid flow of is discharged as it is.

Next, in the foam mode, the foam adapter 260 is slid to the second position B where the inner ring portion 263 interferes with the atomized liquid flow.

Then, the mist-like discharge liquid flow discharged from the discharge port 213d of the spray adapter 210 is provided with the third flow path 261 inside the inner ring portion 263 of the foam adapter 260.
The flow is disturbed inside, and air is mixed into this turbulent flow to generate bubbles, which are discharged in the form of bubbles.

In the stop mode, the cap 230 is attached to the foam adapter 260 to close the third flow passage 261 with the plug portion, and the sealing portion 234 seals the discharge port 213d of the spray adapter 210. To do.

In this embodiment, the foam adapter 260 is used.
Slidably connected to the spray adapter 210,
Since the cap 230 is connected to the foam adapter 260 via the hinge 241, the operation becomes easy.

[0073]

As described above, according to the present invention, the spray adapter having the first flow path for producing the mist-like discharge liquid flow, and the mist-like discharge of the spray adapter are provided. A stream adapter having a second flow path for damping a liquid flow to make a straight flow, and a second stream adapter
It is possible to switch between the spray mode, the stream mode, and the stop mode with a simple configuration that includes only a cap that opens and closes the channel.

Further, since the first flow path for generating the mist-like discharge liquid flow and the second flow path for generating the rectilinear flow are individually provided in separate adapters, stable discharge liquid is obtained. Can form a stream.

Further, since the stream adapter and the cap are openably and closably connected via the first and second hinges, the operation becomes easy.

Further, the spray adapter and the stream adapter having the second flow path for attenuating the mist-like discharge liquid flow from the spray adapter to make a straight flow, and the second flow path of the stream adapter. With a simple structure that includes a cap for opening and closing, a spray mode, a foam mode, and a stop mode can be switched among three modes.

Also in this case, since the foam adapter is slidably connected to the spray adapter and the cap is connected to the spray adapter through the hinge,
Operation becomes easy.

[Brief description of drawings]

FIG. 1 shows a discharge mode switching device for a pump dispenser according to a first embodiment of the present invention. FIG. 1 (a) is a longitudinal sectional view showing the entire structure, and FIG. 1 (b) is a discharge mode switching device. It is a development view of an apparatus.

2 (a) and 2 (b) are explanatory views of a mode switching state of the discharge mode switching device of FIG. 1, and FIG. 2 (c) is an explanatory view of a first flow path outlet.

FIG. 3 is a vertical sectional view showing a discharge mode switching device of a pump dispenser according to a second embodiment of the present invention.

4 (a) and 4 (b) are explanatory views of a mode switching state of the apparatus of FIG. 3, and FIG. 4 (c) is an explanatory view of a first flow path outlet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mode switching device 2 Container 3 Pump dispenser 4 Discharge port part 10,210 Spray adapter 11,211 First flow path 12,123 Housing (support member) 13,213 Cover 13d, 213d Discharge port 20 Stream adapter 21 No. Flow channel 2 30,230 Cap 260 Foam adapter 261 Third flow channel 263 Inner ring 41, 42, 241 Hinge

Claims (4)

[Claims] 1. A discharge mode switching device for a pump dispenser, which is mounted on an opening of a container and which pumps and discharges a predetermined amount of a content liquid in the container, in a discharge mode switching device of a pump dispenser, which is for generating a mist-like discharge liquid flow. And a stream having a second flow path that is mounted on the spray adapter and that attenuates the mist-like discharge liquid flow from the first flow path into a straight flow Discharge adapter and a cap that is attached to the stream adapter and opens and closes the second flow path. 2. The stream adapter is openably and closably connected to the spray adapter via a first hinge, and the cap is openably and closably connected to the stream adapter via a second hinge. Discharge mode switching device for the described pump dispenser. 3. A discharge mode switching device for a pump dispenser, which is mounted on an opening of a container and which pumps and discharges a predetermined amount of a content liquid in the container, in a discharge mode switching device of a pump dispenser. And a third flow which is attached to the spray adapter and which interferes with the mist-like discharge liquid flow from the first flow path and mixes air to generate bubbles. A discharge mode switching device for a pump dispenser, comprising: a foam adapter having a passage; and a cap attached to the foam adapter to open and close the third flow path. 4. A discharge mode switching device for a pump dispenser according to claim 3, wherein the foam adapter is slidably connected to the spray adapter, and the cap is openably and closably connected to the foam adapter via a hinge.