JP2001171708A - Cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap in which even a fluid of high viscosity is not left in the vicinity of a discharge outlet and the fluid does not flow out even when a container is inverted. SOLUTION: When the container 12 is pressed, the pressure inside the container 12 is increased to lift a blocking plate 28 and a disk plate 40 along a guide pin 26. Thus a flow path 42 guiding from a mouth section 12A to a discharge section 36 is set to communicate with the container, and a fluid 14 in the container 12 passes through a hole section 40A and the flow path 42 and guided to the discharge section 36. The fluid 14, therefore, can flow out of the discharge section 36. Then, when the press force to the container 12 is released to reduce the pressure inside the container 12, the blocking plate 28 and the disk plate section 40 are lowered by the energizing force of the spring 34, and when the disk plate section 40 is brought into contact with a stopper 20, the flow path 42 from the hole section 40A to the discharge section 36 is blocked, and the interior of the container 12 is closed. The fluid 14, therefore, does not flow out unless the container 12 is pressed even when the container 12 is inverted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap used for a container filled with a fluid.

[0002]

2. Description of the Related Art As shown in FIG. 7, a cap 70 for opening and closing is mounted on a soft container filled with a fluid (for example, ketchup or the like). When the lid 72 of the cap 70 is opened and a container (not shown) is pressed,
A fluid (not shown) in the container is discharged from a discharge port 78 provided in the cap 70.

Further, when the pressing force on the container is released, the internal pressure of the container is reduced, and the fluid located near the discharge port 78 is sucked downward of the container so that no fluid remains near the discharge port 78. Has become.

However, in the case of a highly viscous fluid, the fluid may remain near the discharge port 78 even when the pressing force on the container is released. As described above, when the fluid remains near the discharge port 78, when the fluid has a high freezing point such as ketchup, it solidifies even at room temperature.

For this reason, the cap 70 cannot be completely closed, and there is a possibility that the fluid may jump out of the container when the container is turned over.

The cap 70 is provided with a spring hinge 80, which urges the lid 72 toward the discharge port 78. However, if the adhesion between the boss 82 and the discharge port 78 is reduced, the fluid may leak when the container is turned upside down.

[0007]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention does not allow a viscous fluid to remain in the vicinity of the discharge port, and does not allow the fluid to flow out even if the container is inverted. The task is to obtain

[0008]

According to the first aspect of the present invention, a cylindrical main body can be engaged with a mouth portion of a soft container filled with a fluid. A discharge port is provided on the outer peripheral surface of the main body, and the fluid flowing out from the port can be discharged.

The main body is provided with opening / closing means. When the container is pressed to increase the internal pressure, the flow path from the mouth to the discharge port is communicated, and the pressure on the container is released to reduce the internal pressure. And the flow path is closed. The opening / closing means is urged in the closing direction by a spring.

As described above, since the opening / closing means is urged in the closing direction by the spring, even if the container is turned upside down, the fluid does not flow out unless the container is pressed.

According to the second aspect of the present invention, the closing plate moves along the inner peripheral wall of the main body. When the container is pressed, the closing plate moves from the edge of the discharge port located on the inner wall side of the main body to the top surface side of the main body, and connects the flow path from the mouth to the discharge port.

When the pressing force on the container is released, the outlet moves from the edge of the discharge port toward the mouth to close the flow path. Further, the spring urges the closing plate in the closing direction of the flow path.

For this reason, in the case of a soft container, when the pressing force applied to the container is released, the internal pressure of the container decreases, and the fluid located near the discharge port is sucked downward of the container. By urging the closing plate with the spring in the closing direction, the internal pressure of the container is further reduced, and even with a highly viscous fluid, no fluid remains near the discharge port.

According to the third aspect of the present invention, the disc portion is formed integrally with the closing plate with a gap on the mouth side. This disk part is movable along the inner peripheral wall of the main body,
The disc has a hole through which the fluid flowing out of the mouth can pass.

As described above, by moving the disk portion together with the closing plate along the inner peripheral wall of the main body, the fluid adhered to the inner peripheral surface of the main body can be reliably scraped off. Therefore, no fluid exists on the inner peripheral wall of the main body in a state where the closing plate closes the flow path. Therefore, the fluid does not flow out of the discharge port, and the fluid does not adhere to the spring.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a container 12 to which a cap 10 according to the present embodiment is attached is formed of a soft material, and when pressed by hand, the container 12 is easily dented. I have.

As shown in FIG. 2, a male screw portion 16 is formed in the mouth 12A of the container 12, and a cylindrical stopper having a female screw portion 18 formed in the male screw portion 16. 20 is screwed.

The top surface 20A of the stopper 20 has a hole 2
2 are formed. On the other hand, fluid 14
And can pass through the hole 22.

A cylindrical main body 24 can be fitted on the outer peripheral wall of the stopper 20. When the main body 24 is fitted on the stopper 20, the contact surface 24A formed on the main body 24 is brought into contact with the stopper 20. Abuts on the top surface 20A.

The dome portion 27 extends from the top surface of the main body 24.
Are projected from the outer periphery of the dome portion 27.
6 are protruding. For this reason, the fluid 14 is discharged
The fluid 14 does not adhere to the outer periphery of the dome portion 27 when the fluid is discharged from the dome portion 27. Further, the cutting of the fluid 14 is improved, and no dripping occurs in the dome portion 27.

The fluid 14 that has passed through the hole 22 can be discharged from the discharge unit 36. Further, a guide pin 26 hangs from a back surface 27A of the dome portion 27. An annular closing plate 28 is inserted through the guide pin 26 so as to be movable in the axial direction of the guide pin 26.

The external dimensions of this closing plate 28 are
7 is slightly smaller than the inner peripheral wall 27B, so that the inner peripheral wall 27B can be rubbed when the closing plate 28 moves. Therefore, the fluid 14 remaining on the inner peripheral wall 27B can be scraped.

On the other hand, a spring 34 is
Is inserted, and one end of the spring 34 is
8, and the other end thereof is in contact with the back surface 27 </ b> A of the dome portion 27. The closing plate 28 is biased by the spring 34 in a direction away from the rear surface 27A.

On the concentric circle of the closing plate 28, an annular rib 30 is formed toward the back surface 27A of the dome portion 27. The movement of the closing plate 28 in the direction of the back surface 27A is regulated by the rib 30.

Further, a boss 32 is projected from the closing plate 28, and the boss 32 allows the guide pin 26 to pass therethrough. The inner diameter of the boss 32 is
Is slightly larger than the external dimensions of.

For this reason, the boss 32 moves while sliding on the guide pin 26. Therefore, the closing plate 28 is
Even if it moves in the axial direction of No. 6, it does not stick.

On the other hand, the boss 32 is provided with a disk portion 40 facing the closing plate 28. Closing plate 28 and disk portion 40
3, is larger than the outer diameter of the inlet portion 36A located on the inner peripheral wall 27B side of the dome portion 27, as shown in FIG. The disk part 40 is provided with a spring 3
4 allows the stopper 20 to contact the top surface 20A of the stopper 20.

On the boss 32 side of the disk portion 40, a hole 4
0A is formed, and the fluid 1 that has passed through the mouth 12A
4 can flow to the discharge section 36 through the hole 40A.

The outer dimensions of the disk portion 40 are
Is slightly smaller than the inner peripheral wall 27B of the
When 0 moves, the inner peripheral wall 27B can be rubbed. For this reason, the fluid 14 remaining on the inner peripheral wall 27B together with the closing plate 28 is scraped off so that the fluid 14 does not completely remain on the inner peripheral wall 27B.

Next, the flow path 42 from the mouth 12A to the discharge section 36 will be described.

When the container 12 shown in FIG. 1 is pressed by hand, the pressure inside the container 12 increases due to the pressing force, and as shown in FIGS.
8 and the disk part 40 are raised.

The ribs 30 formed on the closing plate 28
Abuts against the back surface 27A of the dome portion 27, whereby the closing plate 28 and the disk portion 40 are positioned in the axial direction of the guide pin 26.

At this time, the closing plate 28 and the disc portion 40 are arranged with the inlet portion 36A of the discharge portion 36 interposed therebetween, and the
Flow path 4 guided from 2A to inlet 36A of discharge section 36
2 are communicated.

In this state, after the fluid 14 in the container 12 has passed through the mouth 12A, the hole 4 formed in the disc 40
0A, passing through the flow path 42, and
You will be guided to 6A. Thus, the fluid 14 flows out of the outlet 36B of the discharge unit 36.

Next, when the pressing force on the container 12 is released to reduce the pressure in the container 12, the closing plate 28 and the disk portion 40 are lowered by the urging force of the spring 34, as shown in FIG. At this time, since the pressure in the container 12 decreases, the fluid 14 near the discharge unit 36 is sucked into the container 12.

The use of the spring 34 further reduces the pressure in the container 12, so that even if the fluid 14 has high viscosity, the fluid 14 does not remain near the discharge portion 36.

Further, when the closing plate 28 and the disc portion 40 are lowered, the fluid 14 attached to the inner peripheral wall 27B is completely scraped to rub the inner peripheral wall 27B of the dome portion 27. Therefore, the closing plate 28 and the disk portion 40 can always move smoothly.

Since the fluid 14 adhering to the inner peripheral wall 27B is scraped off, the fluid 14 does not adhere to the spring 34, and the spring 34 is rusted by the fluid 14, There is no fluctuation of the biasing force.

Next, when the disc portion 40 comes into contact with the stopper 20, the closing plate 28 is disposed below the inlet portion 36A of the discharge portion 36 as shown in FIG. In this state,
The flow path 42 from the hole 40A to the discharge unit 36 is closed. For this reason, the inside of the container 12 is sealed, and even if the container 12 is inverted, the fluid 14 does not flow out unless the container 12 is pressed.

A virgin seal may be attached to the top surface 20A of the stopper 20 depending on the type of the fluid 14. In addition, although the stopper 20 and the main body 24 are separate parts, they may be integrally formed. Further, the fluid 14 may be food such as ketchup or cosmetics.

Next, a modified example of this embodiment will be described.

As shown in FIGS. 5 and 6, the passage 54 from the mouth 12A to the discharge section 52 is opened and closed by elastically deforming the mortar-shaped elastic body 50 and moving the closing body 66 up and down. Here, FIG. 6 shows a state in which the elastic body 50 is elastically deformed.
FIG. 5 shows a state in which the elastic body 50 has been restored.

The main body 56 has a female screw portion 56A formed therein, and the male screw portion 1A formed in the mouth 12A of the container 12 is formed.
6 can be directly screwed. A storage portion 60 is provided between the inner peripheral wall 58A of the dome portion 58 formed on the main body 56 and the female screw portion 56A.
At 0, an elastic body 50 can be arranged.

A hole 50A is formed in the center of the elastic body 50.
Is formed, and the fluid 14 that has passed through the mouth 12A can flow.

A circular rib 62 hangs from the edge of the elastic body 50 in a cylindrical shape. The length of the rib 62 is substantially the same as the height of the storage section 60, and the inner diameter of the rib 62 is slightly larger than the inner diameter of the mouth 12A.

On the other hand, the storage section 60 is
A is formed so as to be positioned on a flat surface at the tip of the mouth portion 12A when attached to the mouth portion A. For this reason, even if the rib 62 is attached to the storage part 60, the elastic body 50 does not fall into the mouth 12A.

The outer surface of the rib 62 is in contact with the storage section 60. Therefore, due to the elastic deformation of the elastic body 50,
The position of the rib 62 does not shift.

A pin 64 stands upright from the center of the elastic body 50, and an umbrella-shaped closing body 66 is provided at the tip of the pin 64.
Is provided. The outer diameter of the closing body 66 is substantially the same as the inner peripheral wall 58A of the dome portion 58.

Therefore, when the elastic body 50 is elastically deformed, the outer edge of the closing body 66 rubs against the inner peripheral wall 58A. Therefore, the fluid 1 remaining on the inner peripheral wall 58A together with the closing body 66
4 so that the fluid 14 does not completely remain on the inner peripheral wall 58A.

The top surface of the closing body 66 is
Is substantially the same as the radius of curvature of the ceiling portion 58B. On the other hand, the length of the pin 64 is equal to the length of the top surface of the closing body 66 abutting on the ceiling 58B in a state where the container 12 is pressed and the pressure in the container 12 is increased and the elastic body 50 is elastically deformed upward. Has become.

As described above, the elastic body 50 is elastically deformed,
In a state where the top surface of the closing body 66 is in contact with the ceiling 58B,
The closing body 66 is located above the inlet 52 </ b> A of the discharge unit 52. Therefore, the fluid 14 that has passed from the mouth 12A through the hole 50A formed in the elastic body 50 is
Is guided to the inlet 52A, and flows out of the outlet 52B.

On the other hand, when the pressure on the container 12 is released and the pressure in the container 12 is reduced, the fluid 14
Is sucked into the container 12, the elastic body 50 is restored, the closing body 66 is lowered, and the flow path 54 is closed. At this time, the outer edge of the closing body 66 rubs the inner peripheral wall 58 of the main body 56 to scrape off the fluid 14 remaining on the inner peripheral wall 58.

[0053]

According to the present invention, the above configuration is provided.
In the invention described in (1), since the opening / closing means is urged in the closing direction by the spring, even if the container is turned upside down, the fluid does not flow out unless the container is pressed. According to the second aspect of the present invention, the internal pressure of the container is further reduced, and the fluid does not remain near the discharge port even if the fluid has high viscosity. Claim 3
In the invention described in (1), no fluid exists on the inner peripheral wall of the main body in a state where the closing plate closes the flow path. Therefore, the fluid does not flow out of the discharge port, and the fluid does not adhere to the spring.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a cap according to the present embodiment is fitted to a main body.

FIG. 2 is a cross-sectional view showing a state in which the pressing force on the container using the cap according to the embodiment is released.

FIG. 3 is a cross-sectional view showing a state in which a container using the cap according to the present embodiment is pressed to discharge a fluid.

FIG. 4 is a cross-sectional view showing a state immediately after the pressing force on the container using the cap according to the present embodiment is released.

FIG. 5 is a cross-sectional view showing a modification of the cap according to the present embodiment, showing a state in which the pressing force on the container is released.

FIG. 6 is a cross-sectional view showing a modified example of the cap according to the present embodiment and showing a state in which a fluid is discharged by pressing a container.

FIG. 7 is a perspective view showing a cap according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cap 24 Main body 28 Closure plate (opening / closing means) 34 Spring (opening / closing means) 36 Discharge part (discharge port) 40 Disc part 40A Hole part 42 Flow path 50 Elastic body ((spring) opening / closing means) 50A hole part 52 Discharge part (Discharge port) 54 Flow path 66 Closed body ((closed plate) opening / closing means)

Claims (3)

[Claims] 1. A cylindrical body which is used for a soft container filled with a fluid and is engageable with a mouth of the container, and a fluid provided on an outer peripheral portion of the body and flowing out from the mouth. When the internal pressure is increased by pressing the container provided on the main body and increasing the internal pressure, the flow path from the port to the discharge port is released to release the pressing force on the container, and the internal pressure is reduced. A cap comprising: an opening / closing means for closing the flow path; and a spring for urging the opening / closing means in a closing direction. 2. The opening / closing means moves along the inner peripheral wall of the main body, and when the container is pressed, moves from the edge of the discharge port located on the inner wall side of the main body to the top surface side of the main body. When the flow path is communicated and the pressing force to the container is released, the flow path moves from the edge of the discharge port to the opening side to close the flow path, and the closing direction of the flow path is reduced by closing the flow path. A spring biasing the
The cap according to claim 1, comprising: 3. A disk portion integrally formed with a gap between the closing plate and the mouth side and movable along an inner peripheral wall of the main body, and the mouth portion formed on the disk portion and 3. The cap according to claim 2, further comprising a hole through which the fluid flowing out of the hole can pass.