JPH0739816Y2 - Cap with pouring pump - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap with a pouring pump equipped with a pouring valve body suitable for pouring a highly viscous liquid such as shampoo.

[0002]

2. Description of the Related Art Conventionally, as a cap with a pouring pump for pouring a highly viscous liquid such as shampoo or conditioner, one having a structure which is mounted on a rigid container and allows air to flow into the container head space, It is known that it has a structure that blocks the inflow of air into the container and is attached to a flexible tubular container etc. so that the volume of the container decreases as the content liquid is poured out. There is. The pump structure of these caps with a pouring pump generally has an inflow side check valve provided at the lower part of the cylinder and a discharge side check valve provided at the outlet side of the cylinder, and a pouring path is formed. The piston is slid in the cylinder by pressing the released dispensing head and releasing the pressure, and the interaction between the two check valves makes the measuring chamber in the cylinder a negative pressure and a certain amount of the content liquid in the measuring chamber. Is sucked up, and the measuring chamber is pressurized so that the content liquid is poured out to the outside through the pouring path of the pouring head. The conventional pump structure is always open from the spout of the spout head to the check valve on the discharge side.

[0003]

[Problems to be solved by the invention]
As described above, the liquid discharged from the measuring chamber is discharged from the spout through the inside of the piston shaft and the spout head, so that the spout path is long, and the amount of the content liquid adhering to and remaining in the spout path is large. Moreover, since the spout at the tip of the spout head is always open, the spout is open to the atmosphere, and the viscous content liquid remaining in the spout solidifies and adheres. There is. Further, the conventional cap with a pouring pump has a drawback that the pump structure is complicated and the cost is increased.

The present invention is intended to solve the above-mentioned problems of the prior art, in which the spout is securely sealed except when the liquid is spouted to prevent air from entering the spout passage, and to prevent residual liquid. A pouring valve body capable of preventing solidification and deterioration due to air is obtained, and the pouring valve body is attached to prevent the inflow of air into the pump and the container, and prevent the internal solution from directly contacting the air. It is necessary to obtain a cap with a pouring pump that prevents the volume of the internal solution and reduces the residual volume of the internal solution as much as possible as the internal solution decreases. It is the subject.

[0005]

Means for Solving the Problems The cap with a pouring valve of the present invention for solving the above-mentioned problems is ( a) a container mouth neck engagement
A cap body having a wall and a top wall, and (b) the cap book
Cylinder provided on the body, axially sliding on the inner circumference of the cylinder wall
Formed in a freely fitted piston and in the cylinder
Is connected to the weighing chamber to be
A pouring button consisting of a pouring button that presses the stone.
And (c) is formed at the end of the spouting path of the spouting button.
A cylindrical part that fits into the inner wall of the cylinder and the tip of the cylindrical part is tapered
A spout that is located in the center and has multiple spouts open in the circumferential direction.
Part, a disc part with a smaller diameter than the cylinder part is integrated at the tip of the spout
Made of elastic material such as rubber.
In the natural state, fit the outer circumference of the plug and make a close contact with it.
Closing the pouring outlet, the tip of the tip is
Is it a nozzle formed so as to expand and open the spout?
And a discharge valve body.

[0006] Then, the valve hole in the top wall of the previous Symbol cap body
Is formed so that the valve hole is located inward.
Is formed so as to project outward from the top wall of the cap body.
A disc and a disc holder for opening and closing the valve hole on the upper surface of the valve hole.
A check valve that is made up of
The cradle is fixed to the top wall and the lower end of the cradle is
It has a disc regulation surface that regulates the rising position of the disc.
Is formed at the piston's highest position in the center of the piston
Has a valve stem formed with a large diameter part that closes the discharge port
It is configured to be characterized by that.

Further, the disc is by concatenating together so as to be vertically movable or oscillating the disc holder, and to more reliably inlet-side check valve acts.

[0008]

[Function] Since the nozzle of the spout valve body is made of an elastic material such as rubber, in the natural state, the tip of the spout valve body nozzle is in close contact with the outer periphery of the disc portion of the plug, and the spout It is sealed. Then, when the pressurized content liquid is pushed out to the spout of the plug, the discharge pressure thereof spreads out the nozzle tip end that covers the spout in a tapered shape, and the disc outer periphery and the nozzle tip inner peripheral part The space opens in a ring and the liquid is poured out. Since the spout is tapered, the nozzle can be opened and closed easily, and pouring can be performed reliably. When the pouring of the liquid is completed and the pressurization of the nozzle tip by the content liquid is stopped, the nozzle tip portion is restored due to its elasticity, and the outlet is sealed to block the inflow of air into the inside. Since the tip of the spout is hermetically closed, even if the content liquid has a high viscosity, the liquid will run out.

Further, in the pump-equipped cap equipped with the pouring valve body, the piston is returned by spring force by releasing the pressing of the button after pouring the liquid, and a negative pressure is produced in the measuring chamber along with the return of the piston. Then, the content liquid is sucked into the measuring chamber and is ready for the next pouring. In this state, the spout of the spout valve body is sealed, and the large diameter part of the valve rod is closed by the piston discharge port to seal the measuring chamber and the liquid in the measuring chamber must be discharged to the spout passage. Is being prevented. Therefore, in this state, the inside of the pump and the inside of the container are completely sealed, the outside air can be shut off and the deterioration of the content liquid can be prevented, and the liquid remaining on the outflow passage can be dried. You can always maintain a good condition without doing anything.
Also, by mounting the cap, there is no inflow of air into the container and the volume of the container decreases as the content liquid decreases due to the negative pressure, so the container space is always filled with the content liquid. Then, the content liquid can be poured out to the end, and the waste of the residual content liquid can be eliminated.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of a cap with a pouring pump equipped with a pouring valve body of the present invention. In the figure,
Reference numeral 1 is a cap body formed of plastic, and a container mouth neck engaging wall 3 having a screw for screwing with the container mouth neck and a skirt wall 4 on the outside thereof are provided downward from a top wall 5. Has been formed. A valve hole 6 is formed in the center of the top wall 5,
A disk 7 for opening and closing the valve hole 6 is placed above it. A cylinder wall 8 projects upward from the upper surface of the top wall 5 around the valve hole 6 to form a measuring chamber 9 together with a cylinder described later. A disc holder 10 has a cylindrical wall 12 fitted to an annular wall 11 formed on the upper surface of the top wall 5, and a valve rod 14 supported by a support piece 13 is supported from the top of the cylindrical wall. . The lower end of the valve rod is located above the central portion of the valve hole 6 and serves as a disc restricting surface 15 that regulates the ascending position of the disc 7 when sucking the liquid, and the upper end thereof is the large diameter portion 16. If the piston 20 to be described later is located at the rising end, its top wall 21
The discharge port 22 formed in the central portion of the is fitted to close the discharge port. The disc 7 and the disc holder 10 constitute an inflow side check valve which allows only the inflow from the container to the measuring chamber. The piston 20 is made of an elastic material such as rubber, and hangs from a ceiling wall 21 having a discharge port 22 and slidably contacts the inner peripheral surface of the cylinder wall 8.
3, and is urged in the upward direction by a spring 24 between the top wall 21 and the top wall 5 of the cap body.

Reference numeral 25 is a pouring button having a pouring path 26 formed therein.
It is arranged so that it can be pressed against.
Reference numeral 27 denotes a guide outer cylindrical wall formed on the outer peripheral portion of the pouring button 25, which is slidably fitted to the inner peripheral surface of a cylindrical outer wall 17 formed on the top wall of the cap body, and has a lower end outer peripheral portion thereof. The engaging projection formed on the upper end of the cylindrical outer wall 17 is engaged with the engaging projection formed on the upper end of the inner circumference of the cylindrical outer wall 17, whereby the raised position is regulated and the cap body is prevented from coming off. 28
Is an inner wall of the cylinder forming the pouring path 26, and the lower end thereof is in contact with the upper surface of the top wall 21 of the piston 20. A pouring valve body fitting groove 29 having a cylindrical inner surface into which a pouring valve body 30 described later is fitted is formed at the outlet end of the pouring path 26 of the pouring button 25.

The spout valve body 30 is composed of a combination of a plug 31 and a nozzle 32. The plug 31 is shown in FIG.
As shown in FIG. 5, a cylindrical portion 33 is formed between the inner peripheral surface of the spout valve body fitting groove 29 and the nozzle 32 so that the nozzle 32 can be fitted therein, and the distal end of the cylindrical portion is tapered. To form a spout 37 in which a plurality of spouts 36 are opened in the circumferential direction,
Further, a disc portion 34 having a diameter smaller than the outer diameter of the tubular portion 33 is integrally formed at the tip of the spout portion. The nozzle 32 is formed of an elastic material such as rubber, and is formed so as to fit and closely contact the outer peripheral portion of the plug 31 in a natural state.
Is sealed.

The pouring valve body and the pump cap equipped with the pouring valve body of this embodiment are constructed as described above, and are screwed to the mouth / neck portion of the container 40 whose internal volume can be changed.
It is applied as a cap for quantitatively pouring a highly viscous content liquid such as a rinse filled in the container. FIG. 1 shows a state of the pump in a natural state in which the content liquid is stored in the measuring chamber 9. In this state, the nozzle tip portion of the spout valve body 30 is in close contact with the outer peripheral portion of the disc portion of the plug 31, and the spout 36 is sealed. Further, the large-diameter portion 15 of the valve rod 14 is fitted into the discharge port 22 formed in the top wall 21 of the piston to seal the measuring chamber 9 and prevent the liquid in the measuring chamber from being discharged to the pouring path. ing. Therefore, in this state, the inside of the pump and the inside of the container are completely sealed, the outside air is shut off, and the deterioration of the content liquid can be prevented,
The liquid that has adhered to the outflow passage and remains is not dried, and can always maintain a good condition.

From this state, the button 25 is attached to the spring 24.
When the piston 20 descends by pushing against the pressure, the large diameter portion 16 of the valve rod is released from the discharge port 22 and opened, and the valve hole 6 is closed by the disc 7, so that the piston collects the content liquid. When pressurized, the content liquid is pushed out from the discharge port 22 into the plug 31 through the pouring path 26. The pressurized content liquid is the spout 36 formed at the spout of the plug.
Through the discharge pressure, the nozzle tip portion that covers the outlet in a tapered shape is widened, and as shown in FIGS. 2 and 3 (b), the gap between the disc outer circumference and the nozzle tip inner circumference is increased. The liquid opens in a ring and is poured out. When the pouring of the liquid is completed, the pressurization of the nozzle tip by the content liquid is stopped, the nozzle tip part is restored by its elasticity, and the outlet is sealed.

When the button 25 is pushed down (the state shown in FIG. 2) after the content liquid has been poured out and the push is released, the piston 20 is raised by the spring 24. At that time, since the pouring port is in a closed state, the measuring chamber 9 becomes a negative pressure due to the volume increase, the disk 6 is sucked up and the valve hole 6 is opened, and the viscous liquid in the container is sucked and measured. A predetermined amount of content liquid is sucked up into the room. On the other hand, since there is no inflow of air from the outside into the container, the container shrinks as the content liquid decreases, so that no head space is generated. From this state, by pressing the button again, the content liquid is discharged from the measuring chamber and is discharged from the discharge valve body as described above. In this way, as the content liquid is repeatedly dispensed and the content liquid decreases, the volume in the container also decreases, so that the content liquid can be poured out to the end, and the residual content in the container The amount of liquid can be very small and waste can be eliminated.

FIGS. 3 and 4 show another embodiment of the present invention. In this embodiment, the structure of the disc and valve rod of the inflow side check valve is changed as compared with the embodiment described above. However, since the other basic structure is the same as that of the above-described embodiment, the same members are designated by the same reference numerals and detailed description thereof will be omitted. The inflow check valve 44 in this embodiment is
As shown in detail in FIG. 6, a plurality of thin-walled connecting pieces each having an inner peripheral portion of the cylindrical wall 46 of the disc holder 45 with play as shown in FIG. A disk 48 is supported by 47. Therefore, according to this embodiment, when the negative pressure of the measuring chamber is reached, the disc can be lifted up by the play of the thin connecting piece to open the discharge port, but when the return of the button is completed, the elasticity of the connecting piece is increased. By doing so, it is possible to more effectively restore and block the discharge port. Since the disc is restricted from moving in the lateral direction by the thin connecting piece 47, the valve hole can be opened and closed more reliably. Further, in the present embodiment, the large diameter portion 5 of the valve rod 49 is
No. 0 contacts the outer peripheral portion of the upper surface of the discharge port to seal the discharge port, but of course the configuration may be similar to that of the above-described embodiment.

In the above embodiment, the disc is connected and supported to the cylindrical wall of the disc holder by a plurality of thin connecting pieces having play, but like the inflow side check valve 51 shown in FIG. The cylindrical wall 5 of the disc holder 53
It is also possible to hold only one connecting piece 55 in 4 and allow the disc to open and close the valve hole by using the connecting piece as a hinge. The embodiment of the present invention has been described above. However, the cap to which the pouring valve body of the present invention can be attached is not limited to the one having the above-mentioned structure, and any cap can be used to pouring the content liquid by the pump action. It can be applied to various types of caps with pumps.

[0018]

[Effect of the Invention] The present invention has the following special effects. The spout valve body is elastically adhered to seal the spout when not pouring liquid, so that the liquid remaining in the spout passage or the liquid in the measuring chamber should not come into contact with the outside air. Prevent,
It is possible to prevent solidification and deterioration. Then, as soon as the pouring is completed, the tip of the spout is sealed, so that the liquid runs out. And since there is no inflow of air from the outside into the container, there is no head space accompanying the decrease of the internal solution and the internal volume of the container also decreases, so it is possible to pour out the internal solution to the end. Therefore, the residual solution in the container can be extremely reduced, and waste can be eliminated. Well
Further, the pump structure, especially the valve structure for opening and closing the valve hole and the discharge port of the metering chamber, is simple and can be opened and closed reliably. Further, in a non-use state such as during transportation, the large diameter portion of the valve rod closes the discharge port of the piston to seal the measuring chamber, and it is possible to reliably prevent the liquid in the measuring chamber from being discharged to the pouring path.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a pump cap equipped with a dispensing valve body according to an embodiment of the present invention is mounted on a container.

FIG. 2 is a cross-sectional view of the cap with a pouring pump of FIG. 1 in a liquid pouring state.

3 (a) is a front view of the pouring valve body in the state of FIG. 1 (natural state), and FIG. 3 (b) is a front view of the pouring valve body in the state of FIG. 2 (pouring state). .

FIG. 4 is a cross-sectional view showing a state in which a pump cap according to another embodiment is attached to a container.

5 is a transverse cross-sectional view of the cap with a pouring pump of FIG. 4 in a liquid pouring state.

FIG. 6 shows an inflow check valve in the embodiment of FIG.
(A) is the top view, (b) is the bottom view, (c) is the AA sectional view of (a).

7A and 7B show another embodiment of the inflow side check valve, FIG. 7A is a plan view thereof, and FIG. 7B is a bottom view thereof.

[Explanation of symbols]

1 Cap Main Body 3 Container Port Neck Engagement Wall 4 Skirt Wall 6 Valve Hole 7, 48, 50 Disc, 8 Cylinder Wall 9 Metering Chamber 10, 45, 53 Disc Holder 14 Valve Rod 16
Large diameter part 20 Piston 22
Discharge port 25 Pouring button 26
Spout passage 30 Spout valve body 31
Plug 32 Nozzle 33
Cylindrical part 34 Disc 35
Spout port 36 Spout port 40
Container 44, 51 Inflow side check valve 47
Thin connection piece 55 Connection piece

Claims (1)

[Scope of utility model registration request] 1. ( a) A container mouth having a neck engaging wall and a top wall
A cap body, and (b) a cover provided on the cap body.
Linda, fitted on the inner circumference of the cylinder wall so as to be slidable in the axial direction
It is connected to the piston and the measuring chamber formed in the cylinder.
A through-flow passage is formed inside to push the piston.
(C) front
Fits into the inner wall of the cylinder formed at the end of the pouring path of the pouring button.
A cylindrical part that fits together, and a tapered shape is arranged at the tip of the cylindrical part
Outlet part with a plurality of outlets open in the direction
A disc portion having a smaller diameter than the tubular portion is integrally formed at the end.
It is made of elastic material such as plug and rubber.
Closes the spout by fitting and closely fitting to the outer periphery of the plug
However, when the liquid is poured out, the tip of the
A pouring bar consisting of a nozzle formed to open the mouth
And a valve hole is formed in the top wall of the cap body.
The cylinder has the cap body so that it is located inward.
The valve hole is formed so as to project outward from the top wall, and the valve hole is formed on the upper surface of the valve hole.
Inflow consisting of a disc and a disc holder that opens and closes
A side check valve is provided and the disc holder is
It is fixed to the wall and regulates the rising position of the disc at the lower end
It has a disc regulation surface that
Is the diameter that closes the discharge port formed in the center of the piston.
A note characterized by having a stem formed with a majority
Cap with delivery pump. 2. The cap with a pouring pump according to claim 1 , wherein the disc is integrally connected to the disc holder so as to be vertically movable or swingable.