JP3369699B2 - Dispensing container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pouring container containing a paste-like content having a relatively high viscosity and having a manual pump mechanism on its upper portion.

[0002]

2. Description of the Related Art As a pouring container of this type, Japanese Patent Application Laid-Open No. 62-62160
There is one disclosed in Japanese Patent Publication No. 182079. In this pour-out container, a cylinder is erected on the upper side of the top plate of the container body, and the accommodating portion inside the container body and the pump chamber inside the cylinder are connected via the first check valve. Then
A piston is provided inside the cylinder so as to be vertically slidable in an airtight state, a discharge pipe is provided above the piston, and the pump chamber and the discharge pipe are connected through a second check valve. An inverted cup-shaped operation member is integrally provided with the operation member, and the operation member is biased upward by a spring.

When the operating member is pushed down, the first check valve is closed and the second check valve is opened, and the contents of the pump chamber are poured into the spout pipe. After that, the operating member is spring-loaded. When elastically returned upward, the second check valve closes and the first check valve opens, so that the contents of the accommodating portion are pumped up into the pump chamber.

In addition, a movable bottom plate is slidably mounted inside the container body in an airtight state, and when the contents of the containing portion are pumped up into the pump chamber, the pressure inside the containing portion becomes a negative pressure. The movable bottom plate rises due to the pressure difference from the atmospheric pressure.

[0005]

By the way, the pouring pipe of the pouring device is substantially L-shaped, and the laterally extending portion of the pouring pipe is the top of the inverted cup-shaped operating member. It has a structure that projects upward from. this is,
The structure was suitable for grasping the container body with four fingers excluding the index finger, hooking the index finger on the top of the operation member, and pushing the operation member downward.

However, this structure is inconvenient because it is necessary to always check the direction of the pouring pipe when pouring out, and the pouring container must be carried around if necessary.

If the contents are highly viscous,
A large amount of force is required to push down the operation member, and it may be difficult to do this with one index finger. In such a case, a large force can be easily obtained by holding the dispensing container with one hand and pressing the tip of the dispensing tube against the palm of the other hand to push down the dispensing container. . However, when the pouring container is operated in this way, the operation member becomes an obstacle when the contents attached to the tip opening of the pouring pipe are wiped with the palm immediately after pouring the contents. was there.

Further, when operated in this manner, a part of the opening of the tip of the dispensing tube hits the palm, and the force is concentrated there, so that the palm is hurt.

Incidentally, Japanese Utility Model Publication No. 51-10134 discloses that
Disclosed is a pour-out container having a structure in which the pour-out pipe extends straight upward and a tip of the pour-out pipe projects from an operating member. This solves the above problems and
Could not solve the problem.

The present invention has been made in view of the above problems of the prior art, and provides a pouring container which has good operability and does not hurt the palm even if the pouring operation is performed by pressing it against the palm. Especially.

[0011]

The present invention has the following features to attain the object mentioned above. That is, the pouring container of the present invention includes (a) a container body, (b) a movable bottom plate,
(C) Top plate section, (D) accommodation section, (E) pump chamber,
(F) A first check valve, (g) an inner guide ring and an outer guide ring, (h) an operating member, (i) a piston, and (n) an urging member.

Hereinafter, each constitution of the present invention will be described in more detail. (A) The container body has a tubular shape. (B) The movable bottom plate is slidably fitted in the container body in an airtight state. When the pressure in the housing portion becomes negative, the movable bottom plate rises in the container body due to the pressure difference from the atmospheric pressure. (C) The top plate portion closes the upper part of the container body, and the liquid outlet is provided in the center thereof. The bottom surface of the top plate has an upward slope from the peripheral edge toward the liquid outlet.

(D) The accommodating portion is formed inside the container body between the movable bottom plate and the top plate portion, and the contents are accommodated in the accommodating portion. (E) The pump chamber is provided above the liquid outlet of the top plate. (F) The first check valve is provided at the liquid outlet of the top plate portion. The first check valve allows the contents in the accommodation portion to flow into the pump chamber and prevents the backflow from the pump chamber to the accommodation portion. (G) The inner guide ring and the outer guide ring are provided on the upper side of the top plate portion, and both are provided concentrically on the outer side of the liquid outlet.

(H) The operation member is arranged above the top plate portion, has a size that covers substantially the entire upper part of the container body, and is installed so as to be movable up and down. The upper surface of the operation member has a cone shape and has a horizontal portion at the top, and a spout is provided at the center of this horizontal portion. A cylindrical inner support ring arranged outside the inner guide ring and a cylindrical outer support ring arranged outside the outer guide ring are provided below the operation member. The operation member has a detachment prevention mechanism,
It is designed so that it will not come off the top plate.

(I) The piston interlocks with the operating member. The piston moves up and down together with the operating member to expand / contract the volume of the pump chamber, an outflow passage connecting the spout and the pump chamber, and a content flowing from the pump chamber to the spout through the outflow passage. And a second check valve for preventing backflow from the spout to the pump chamber.

This piston can be constructed as follows. For example, the second check valve is formed in an annular shape, and the outer peripheral portion of the second check valve is arranged so as to slide vertically in an airtight manner on the wall surface defining the pump chamber, and the piston is A piston main body that is fixed to the operation member and that inserts the second check valve is provided, and the lower end of the piston main body is caused to wrap around the lower side of the second check valve as an action portion, and the action portion is provided with respect to the second check valve. Provide a valve seat. When the piston main body and the second check valve are relatively movable in the vertical direction and the operation member is pushed downward, the valve seat separates from the second check valve to open the outflow passage, and the operation member is opened. When the valve is returned upward, the valve seat rises and the second check valve is seated on the valve seat to block the outflow passage.

Alternatively, the action portion is formed in an annular shape, and the inside of the action portion serves as a part of the outflow passage, and the outer peripheral portion of the action portion is vertically slid vertically on the wall surface defining the pump chamber. Alternatively, the second check valve may be operated by the hydraulic pressure of the pump chamber, and the inside of the action portion forming a part of the outflow passage may be opened and closed by the second check valve.

(B) The biasing member is composed of a spring or the like and is arranged between the top plate portion and the operating member to bias the operating member upward.

[0019]

When the operating member is pushed downward against the biasing member, the piston descends together with the operating member, the first check valve closes and the second check valve opens, and the contents of the pump chamber act. Is pushed out by the section and flows out to the spout through the outflow passage.

After that, when the operating member is raised by the elastic force of the biasing member, the piston rises together with the operating member,
The second check valve is closed and the first check valve is opened, so that the contents in the container are pumped up to the pump chamber.

Since the spout is located at the center of the horizontal portion of the top of the operating member, the pouring direction of the contents is constant regardless of the circumferential position of the container body, which is convenient. In this dispensing container, the dispensing container is held upside down with one hand, the operating member is applied to the palm of the other hand, and the dispensing container is pressed toward the other hand, whereby the operating member is held. It is also possible to pour the contents by moving in the direction of approaching.

If the cone-shaped portion of the operating member is brought into surface contact with the palm during the pouring operation as described above, the palm does not hurt when the pouring container is pressed. Also, since the operating member has a cone shape with the spout at the top, when wiping the contents around the spout with the palm immediately after pouring, the operating member does not get in the way and should be wiped clean. You can

When the operating member is moved up and down, the inner guide ring guides the inner support ring and the outer guide ring guides the outer support ring, so that the operating member moves smoothly. Since the bottom surface of the top plate has an upward slope from the peripheral portion toward the central liquid outlet, the air in the housing can be collected at the liquid outlet,
It is possible to exhaust all the air in the storage unit at the time of the first pouring.

[0024]

Embodiments of the present invention will be described below with reference to the drawings of FIGS. [First Embodiment] FIGS. 1 to 3 show a first embodiment of a dispensing container according to the present invention. FIG. 1 is an overall vertical sectional view of a pouring container, in which the right half shows a non-pouring state and the left half shows a pouring state.

The pouring container 1 has a bottomed cylindrical container body 2 having an open top. The bottom portion 3 of the container body 2 is provided with a plurality of air holes 4. Inside the container body 2, a movable bottom plate 5 is slidably attached to the inner peripheral surface of the container body 2 in an airtight state.

FIG. 2 is an enlarged cross-sectional view of the top of the pouring container 1, and a top plate (top plate portion) 10 is fixed to the top opening of the container body 2 in an airtight state. The top plate 10 includes a partition wall portion 11, an outer cylinder portion 12, and an inner cylinder portion 13, and the outer cylinder portion 12
The tip projection 14 of the container body 2 is abutted against the tip of the container body 2, and the hooking portion 15 provided on the outer peripheral surface of the outer cylindrical portion 12 is attached to the container body 2.
The top plate 10 is fixed to the container body 2 by being hooked on the hooking portion 6 provided at the upper end of the inner peripheral surface of the. A container 7 is formed by being surrounded by the container body 2, the movable bottom plate 5, and the top plate 10, and the container 7 contains paste-like contents.

A liquid outlet hole 16 is provided at the center of the partition wall portion 11 of the top plate 10, and the bottom surface 17 of the partition wall portion 11 is formed in an upward slope from the entire peripheral edge portion toward the liquid outlet hole 16. There is. This is for collecting the air in the housing portion 7 into the liquid outlet hole 16. The inner cylinder portion 13 is concentrically arranged outside the liquid outlet hole 16 and stands upright from the partition wall portion 11 and extends upward.

A guide ring 20 is attached between the outer cylinder portion 12 and the inner cylinder portion 13 of the top plate 10. Guide ring 20
Is an inner guide ring 21 and an outer guide ring 22 that are concentrically arranged.
And are connected by a connecting plate 23. A bent portion 24 that bends inward in a substantially U shape is formed at the upper end of the inner guide ring 21, and the guide ring 20 includes the bent portion 2
4 is airtightly fitted to the tip of the inner cylindrical portion 13 of the top plate 10, the connecting plate 23 is brought into contact with the upper surface of the partition wall portion 11 of the top plate 10, and the outer peripheral edge 25 of the connecting plate 23 is attached to the top plate 10. Outer cylinder part 1
It is fixed to the top plate 10 by being hooked on a hooking portion 18 provided on the lower part of the inner peripheral surface of 2.

An operation head 70 (operation member) is mounted on the upper side of the guide ring 20 so as to be movable up and down. The operation head 70 has a circular shape in a plan view, and its outer diameter is slightly smaller than the inner diameter of the outer cylindrical portion 12 of the top plate 10, and has a size that covers almost the entire container body 2 when viewed from above. ing.

The operating head 70 has a horizontal portion 71 on the top thereof, and a cone portion 72 having a downward slope toward the outside in the radial direction is connected to the outside of the horizontal portion 71, and the outside of the cone portion 72 has a cylindrical outer shape. The support ring 73 is continuous. Horizontal part 7
An opening 74 is provided in the center of the opening 1.
A substantially cylindrical holding cylinder 75 that surrounds the horizontal portion 71 extends downward from the back surface of the horizontal portion 71. An inner support ring 76 extends downward from the back surface of the cone portion 72. The holding cylinder 75 and the inner support ring 76 are arranged concentrically with the outer support ring 73.

The holding cylinder 75 is a bent portion 24 of the guide ring 20.
Is inserted inside with a gap, and the lower end of the holding cylinder 75 is located below the bent portion 24. The inner guide ring 21 of the guide ring 20 is inserted with a slight gap inside the inner support ring 76, and the lower end of the inner support ring 76 is located below the center of the inner guide ring 21 in the height direction. positioned. The outer support ring 73 is arranged outside the outer guide ring 22 in the guide ring 20.

The guide projection 77 provided on the lower portion of the inner peripheral surface of the outer support ring 73 is in sliding contact with the outer peripheral surface of the outer guide ring 22, and the guide projection 26 provided on the tip of the outer peripheral surface of the outer guide ring 22 is the outer support ring. The operation head 70 is slidably contacted with the inner peripheral surface of 73, and thereby the operation head 70 is guided so as not to rattle in the radial direction.

Further, in the operation head 70, the inner support ring 76 is guided by the inner guide ring 21 of the guide ring 20, and the overlapping dimension of the inner support ring 76 and the inner guide ring 21 in the vertical direction is Since it is long, the operation head 70 moves very smoothly without tilting. The operating head 70 is biased upward by a spring (biasing member) 80 provided between the operating head 70 and the guide ring 20.

Inside the inner tube portion 13 of the top plate 10, there is a first
A check valve 30 and a piston 40 are housed. The first check valve 30 is a valve that opens and closes the liquid outlet hole 16 of the top plate 10. FIG. 3 is an enlarged bottom view of the first check valve 30 as viewed from the back side, and the first check valve 30 has a circular shape in plan view. The first check valve 30 is made of an elastic material such as polyethylene, has a shape in which a tubular portion 32 stands up from the outer peripheral edge of the valve body portion 31, and has a recess 33 in the upper portion.

The central portion of the valve body 31 is the liquid outlet hole 16
Is a blocking part 34 that closes the
A book-like passage hole 35 is provided. Each passage hole 35
Has a shape in which two arcuate holes 36 and 37 having different radii of curvature are connected.

In the first check valve 30, the valve body portion 31 is brought into contact with the upper surface of the partition wall portion 11 of the top plate 10, and the hook portion 38 provided on the outer peripheral surface of the cylindrical portion 32 is attached to the top plate 10. The top plate 1 is hooked on a hooking portion 19 provided on the lower portion of the inner peripheral surface of the inner cylindrical portion 13.
It is fixed at 0. In this state, the liquid outlet hole 16 of the top plate 10 is closed by the closing portion 34 of the first check valve 30, and at the same time, each passage hole 35 of the first check valve 30 causes the partition wall portion 11 of the top plate 10. It is designed to be closed by.

The piston 40 comprises a piston body 41 and a second check valve 60. The piston body 41 has a substantially cylindrical shape with a bottom, and the inside is a hollow portion 42,
The upper end opens as a spout 43. Piston body 4
A plurality of communication holes 44 are provided in the outer peripheral portion of 1. The lower part of the piston body 41 has a collar part 4 which projects outward in the radial direction.
5 is formed. The outer diameter of the collar portion 45 is slightly smaller than the inner diameter of the inner cylindrical portion 13 of the top plate 10, and a plurality of circulation grooves 46 are formed on the outer peripheral portion of the collar portion 45 at appropriate intervals in the circumferential direction. ing. Further, the collar portion 45 has a second check valve 60.
An annular valve seat portion 47 is formed so as to project upward.

Further, the lower part of the piston body 41 is provided with a collar portion 4
A protrusion 48 that protrudes below 5 is provided.
The outer diameter of the protrusion 48 is smaller than the inner diameter of the recess 33 of the first check valve 30. In addition, in this embodiment, the flange 45 and the protrusion 48 constitute an operating portion of the piston 40.

The second check valve 60 has an annular shape and is arranged above the flange portion 45 of the piston body 41. The cross-sectional shape of the second check valve 60 is substantially H-shaped, and the outer peripheral portion of the outer ring portion 61 is in sliding contact with the inner peripheral surface of the inner cylindrical portion 13 of the top plate 10 in an airtight state, so that the second check valve is provided. The valve 60 is attached so as to be slidable in the vertical direction in the inner cylindrical portion 13.

The outer peripheral portion of the upper portion 63 of the inner ring portion 62 of the second check valve 60 has the holding cylinder 7 of the operating head 70.
It is in sliding contact with the lower part of the inner peripheral surface of No. 5 in an airtight state. The lower portion 64 of the inner ring portion 62 is the valve seat portion 4 of the piston body 41.
It is located on the inner side in the radial direction with respect to 7, and can be seated on and separated from the valve seat portion 47.

The piston body 41 is inserted inside the inner ring portion 62 with a predetermined gap, and the piston body 41 and the second check valve 60 are vertically movable relative to each other. The piston body 41 penetrating the inner ring portion 62 is further inserted into the holding cylinder 75 of the operation head 70, and the engagement recess 49 provided on the outer peripheral surface of the piston body 41.
Further, the engaging convex portion 78 provided in the middle of the inner peripheral surface of the holding cylinder 75 is fitted and fixed in an airtight state, and the operation head 70 and the piston body 41 are integrated. Therefore, the operating head 70
By moving up and down, the lower part of the piston main body 41 moves up and down in the inner cylindrical portion 13.

The tip of the piston body 41 is the operation head 70.
Is flush with the horizontal portion 71 of the operating head 70, and the spout 43 is located in the opening 74 of the operating head 70. That is, the spout 43 is located at the center of the horizontal portion 71 of the operation head 70.

A portion surrounded by the inner cylinder portion 13 of the top plate 10, the flange portion 45 and the protruding portion 48 of the piston body 41, and the first check valve 30 constitutes a pump chamber 81, and the piston body 41 And the second check valve 60, the communication hole 44 of the piston body 41, and the cavity 42 form an outflow passage 82.

The second check valve 60 has an outer ring portion 61.
Since the upper end of the piston abuts on the bent portion 24 of the guide ring 20, further upward movement is restricted, and the piston check unit 4 is attached to the second check valve 60 whose movement is restricted in this way.
The operation head 70 is prevented from coming off the top plate 10 due to the abutment of the first valve seat portion 47.

A cover 90 is detachably attached to the upper side of the operation head 70. The cover 90 has a horizontal portion 91.
It is composed of a cone portion 92 and a skirt portion 93, and the lower end portion 94 of the skirt portion 93 is placed on the tip projection 14 of the top plate 10. A protruding portion 95 that fits into the spout 43 of the piston body 41 is formed in the center of the back surface of the horizontal portion 91, and a cylindrical portion 96 that allows the tip of the piston body 41 to be inserted outside the protruding portion 95. Is extended downwards.

In this pouring container 1, the cover 90 is removed and the operation head 70 is pushed downward to pour out the contents. When the pouring container 1 is used for the first time, the pouring container 1 is deflated. The operation of venting air can be performed by the same operation as when pouring. That is, the operation head 70
When pushing down against the spring 80, the operating head 7
With 0, the piston body 41 of the piston 40 descends.
At this time, the valve body portion 31 of the first check valve 30 is pressed against the upper surface of the partition wall portion 11 of the top plate 10, and the liquid outlet hole 16 of the partition wall portion 11 is closed by the closing portion 34 of the first check valve 30. ,
The passage hole 35 of the first check valve 30 is closed by the upper surface of the partition wall portion 11.

At the initial lowering stage of the piston body 41, the second check valve 60 of the piston 40 does not move and remains at the position shown in FIG. 2 (hereinafter, this position is referred to as top dead center). As a result, the valve seat portion 47 of the piston body 41 is separated from the lower portion 64 of the inner ring portion 62 of the second check valve 60, and the outflow passage 82 is opened. At the same time, as the piston body 41 descends, the air in the pump chamber 81 is exhausted from the spout 43 through the flow groove 46 and the outflow passage 82.

When the operating head 70 is further pushed down, the lower end of the holding cylinder 75 in the operating head 70 is moved to the second check valve 60.
After that, the operation head 70, the piston body 41, and the second check valve 60 are integrally lowered. During this time, the outflow passage 82 is maintained in the open state, and the piston body 41
The air in the pump chamber 81 is exhausted from the spout 43 in accordance with the downward movement.

Then, when the flange portion 45 of the piston body 41 hits the cylindrical portion 32 of the first check valve 30, the piston body 41 stops descending. The left half of FIG. 1 shows this state.
The position of 1 is called bottom dead center. At bottom dead center, piston body 4
The first protrusion 48 enters the recess 33 of the first check valve 30.

From this state, the hand is released from the operation head 70, and the operation head 70 and the piston body 41 are elastically returned upward by the spring 80. In the initial stage of this return, the second check valve 60 does not move and stops at the position shown in the left half in FIG. 1, and only the operation head 70 and the piston body 41 rise.

The piston body 41 rises and its valve seat 4
When 7 comes into contact with the lower end of the inner ring portion 62 of the second check valve 60, the second check valve 60 is moved to the valve seat portion 4 thereafter.
The operation head 70, the piston body 41, and the second check valve 60 are integrally lifted while maintaining the state of being seated on the vehicle 7.

Since the outflow passage 82 is closed when the second check valve 60 is seated on the valve seat portion 47, when the piston main body 41 rises in this state, the inside of the pump chamber 81 increases as the volume of the pump chamber 81 increases. It becomes negative pressure. As a result, the valve body portion 31 of the first check valve 30 is pulled upward, and the closing portion 34
Is separated from the upper surface of the partition wall portion 11 of the top plate 10, the liquid outlet hole 16 of the partition wall portion 11 is opened, and the first check valve 3
No. 0 passage hole 35 is opened, and the air accumulated in the upper portion of the housing portion 7 flows into the pump chamber 81 through the liquid outlet hole 16 and the passage hole 35. Since the bottom surface 17 of the partition wall portion 11 has an upward slope toward the liquid outlet hole 16, the accommodation portion 7
The air inside tends to collect in the liquid outlet hole 16.

Then, the outer ring portion 6 of the second check valve 60.
1 hits the bent portion 24 of the guide ring 20, the piston body 41 returns to the top dead center, and the operation head 70 also stops.
By appropriately repeating the series of operations described above, the accommodating portion 7
Also, all the air in the pump chamber 81 can be exhausted.

When the air removal from the container 7 is completed, the contents of the container 7 are lifted by the ascending operation of the piston body 41 accompanying the return operation of the operating head 70.
And is pumped up into the pump chamber 81 through the passage hole 35. Further, when the air removal from the pump chamber 81 is completed, the contents inside the pump chamber 81 are removed by the lowering operation of the piston main body 41 accompanying the pushing down operation of the operation head 70.
It is poured from the spout 43 through the flow groove 46 of the piston body 41 and the outflow passage 82.

As the contents in the container 7 are pumped up into the pump chamber 81, the inside of the container 7 becomes a negative pressure. Then, an upward force is applied to the movable bottom plate 5 based on the pressure difference between the pressure in the housing portion 7 and the atmospheric pressure, the movable bottom plate 5 rises in the container body 2, and the pressure in the housing portion 7 becomes atmospheric pressure. When it equilibrates with, stop.

By the way, in order to pour out the contents, the pouring container 1 is held upside down with one hand, and the operating head 70 is put on the palm of the other hand, and the pouring container 1 is placed on the palm of the other hand. It is also possible to push the operation head 70 in the direction of approaching the container body 2 by pressing the button. Since the spout 43 is located at the center of the operation head 70 in the pouring container 1, the pouring direction of the contents is constant regardless of the circumferential position of the container body 2.

When operating in this way, the operating head 7
When the 0 cone portion 92 is attached to the palm so as to be in surface contact with the palm, the palm will not be damaged when the pouring container 1 is pressed,
I'm in good shape. Moreover, since the cone portion 92 is formed around the spout 43, the operation head 70 does not get in the way when wiping the contents adhering around the spout 43 with the palm immediately after spouting, and it should be wiped cleanly. You can

[Second Embodiment] FIG. 4 is an enlarged cross-sectional view of a main part of a pouring container 1 according to a second embodiment, which is a drawing corresponding to FIG. 2 in the first embodiment. The difference between the pouring container 1 of the second embodiment and that of the first embodiment will be described below.
The same parts as those of the pouring container 1 of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The guide ring 20 in this pouring container 1 is composed of an inner guide ring 21 and a bent portion 24, and has no outer guide ring 22. Instead of the outer guide ring 22, the top plate 1
The outer guide ring 111 stands upright from the partition wall portion 11 of 0 and is integrally provided, and at the tip of the outer peripheral surface of the outer guide ring 111,
A guide protrusion 112 corresponding to the guide protrusion 26 of the outer guide ring 22 is provided. The guide ring 20 is fixed by fitting the bent portion 24 to the tip of the inner cylindrical portion 13 of the top plate 10 in an airtight state.

The operating head 70 has a spouting pipe portion 171 inside the holding cylinder 75 and in the center of the operating head 70, and is supported by a connecting portion 172 extending from the holding cylinder 75. The tip of the spout 171 is flush with the horizontal part 71, and the tip opening of the spout 171 is located at the spout 43.
It has become.

The piston main body 41 of the pour-out container 1 has a solid structure and has a collar portion 45 and a valve seat portion 47 at the lower portion, but the cavity portion 42 and the communication hole 4 in the first embodiment are provided.
4, the flow groove 46 and the protrusion 48 are absent. The piston body 41 has a rod portion 141 that is fitted and fixed to the pouring pipe portion 171, and a plurality of outflow grooves 142 extending in the vertical direction are provided on the outer peripheral surface of the rod portion 141. The bottom surface of the piston body 41 serves as a working portion.

The shape of the second check valve 60 is slightly different from that of the first embodiment, but there is no functional replacement. The second check valve 60 serves as the valve seat portion 47 of the piston body 41.
In the seated state, the collar portion 45 is located inside the outer ring portion 61 of the second check valve 60, and has a gap with the outer ring portion 61. When the piston body 41 is located at the top dead center, the lower end of the outflow groove 142 is at the outlet pipe portion 1
It is located below the lower end of 71.

In this second embodiment, the outflow passage 82 is constituted by the gap formed between the piston body 41 and the second check valve 60, the outflow groove 142 and the internal space of the spout pipe portion 171. Has been done.

In the case of the pouring container 1 of the second embodiment, when the operating head 70 is pushed in, the connecting portion 172 of the operating head 70 hits the upper portion 63 of the inner ring portion 62 of the second check valve 60. As a result, the operation head 70, the piston body 41, and the second check valve 60 are integrally lowered. The other movements are the same as in the case of the pouring container 1 of the first embodiment, and the flow of air and the contents at the time of air venting and pouring of the contents are also the same as those in the first embodiment. Is omitted.

[Third Embodiment] FIG. 5 is an enlarged cross-sectional view of a main part of a pouring container 1 of a third embodiment, which is a view corresponding to FIG. 4 in the second embodiment. Pour-out container 1 of this third embodiment
Differences from the second embodiment will be described below.
The same parts as those of the pouring container 1 of the second embodiment are designated by the same reference numerals and the description thereof will be omitted.

There is no guide ring 20 in this pouring container 1. In the first check valve 30 of the dispensing container 1, the tubular portion 32 is formed like a double pipe, and the upper portion of the inner tubular portion 131 is connected to the outer tubular portion 132. The inner cylinder part 1 of the top plate 10 is provided between the inner cylinder part 131 and the outer cylinder part 132.
3 by fitting the first check valve 30 to the top plate 10
It is fixed airtightly. The inner cylinder 131 of the first check valve 30 is the inner cylinder 1 of the first and second embodiments.
The outer cylindrical portion 132 functions as the first embodiment and the second embodiment.
It functions as the inner guide ring 21 in the embodiment.

In the operating head 70 of the dispensing container 1, the lower end of the holding cylinder 75 extends below the lower end of the dispensing pipe portion 171. In this dispensing container 1, the positional relationship between the piston body 41 and the second check valve 60 is opposite to that in the first and second embodiments. That is, the second check valve 60 is housed inside the piston body 41.

More specifically, the piston main body 41 has a cylindrical support cylinder 143, an annular valve seat portion 47 extending downward and inward from the tip of the support cylinder 143, and an outward and downward direction from the tip of the support cylinder 143. An annular sliding piece 144 extending outward
It consists of and. The piston body 41 is the support cylinder 1.
By fitting and fixing 43 into the holding cylinder 75 of the operation head 70 in an airtight state, it is integrated with the operation head 70, and the sliding piece 144 has the inner cylinder portion 1 of the second check valve 60.
By slidingly contacting the inner peripheral surface of 31 in an airtight state, the inner cylindrical portion 131 can be slid vertically. In the piston body 41, the valve seat portion 47 and the sliding piece 144 are provided.
Becomes the action part.

The second check valve 60 is formed of a resin having elasticity such as polyethylene, and as shown in FIG. 6, an annular support portion 161, a valve body portion 162, a support portion 161, and a valve body portion. It is composed of a plurality of arm portions 163 connecting the 162.

The second check valve 60 is accommodated in the support cylinder 143 of the piston body 41, and the support portion 161 is connected to the support cylinder 1 of the piston body 41.
It is hooked on a hooking portion 145 provided on the inner peripheral surface of 43.
The valve body portion 162 is urged downward by the elasticity of the arm portion 163, and normally the valve body portion 162 is seated on the valve seat portion 47 of the piston body 41.

In the pouring container 1 of the third embodiment,
A portion surrounded by the first check valve 30, the valve seat portion 47 and the sliding piece 144 of the piston main body 41, and the valve body portion 162 of the second check valve 60 constitutes the pump chamber 81, and the piston main body. An outflow passage 82 is formed by the gap formed between the valve 41 and the second check valve 60, the inside of the second check valve 60, and the internal space of the spout pipe portion 171.

In the case of this dispensing container 1, the operating head 7
When 0 is pushed down, the piston body 41
Not only this, the second check valve 60 also descends together with the operation head 70. Then, when the pressure in the pump chamber 81 rises, this pressure causes the valve body portion 162 of the second check valve 60 to rise.
Is pushed up relative to the piston body 41 against the elasticity of the arm portion 163, and the valve seat portion 4 of the piston body 41
7, the outflow passage 82 opens, and the air or the contents in the pump chamber 81 passes through the outflow passage 82 and the spout 4
Outflow from 3.

When the operating head 70 is elastically returned upward, the valve body portion 162 of the second check valve 60 is again moved to the valve seat portion 47.
Since the inside of the pump chamber 81 becomes negative pressure as the operation head 70 rises, the valve body portion 31 of the first check valve 30 becomes the partition wall portion 11 of the top plate 10 as in the second embodiment. And the liquid outlet hole 16 and the passage hole 35 are opened, and the air or the contents in the housing portion 7 is pumped up to the pump chamber 81.

In the dispensing container 1 of this third embodiment,
The guide head 77 of the outer support ring 73 of the operation head 70 is caught by the guide projection 112 of the outer guide ring 111 of the top plate 10, so that the operation head 70 cannot be separated from the top plate 10.

[Fourth Embodiment] FIG. 7 is an enlarged cross-sectional view of a main part of a dispensing container 1 according to a fourth embodiment, which is a view corresponding to FIG. 5 in the third embodiment. Pour-out container 1 of the fourth embodiment
Differences from the third embodiment will be described below. The same parts as those of the pouring container 1 of the third embodiment are designated by the same reference numerals and the description thereof will be omitted.

The top plate 10 of the pour-out container 1 has an inner guide ring 113 standing upright from the partition wall 11 and extending upward between the inner cylindrical portion 13 and the outer guide ring 111. The inner guide ring 113 corresponds to the inner guide ring 21 in the first embodiment, and the inner support ring 76 of the operation head 70 is arranged outside the inner guide ring 113.

The first check valve 30 in this dispensing container 1
Is a hooking portion in which the inner tubular portion 13 of the top plate 10 is airtightly fitted between the inner tubular portion 131 and the outer tubular portion 132, and the outer peripheral upper edge of the outer tubular portion 132 is provided on the inner guide ring 113. It is fixed by being hooked on 114. A bulge 133 protruding upward is formed in the center of the valve body 31 of the first check valve 30.

In the operating head 70 of the pour-out container 1, the holding cylinder 75 and the pour-out pipe portion 171 do not extend below the connecting portion 172. The piston body 41 extends downward from a check valve accommodating portion 241 having a cup shape, an annular collar portion 242 protruding outward from an upper end of the check valve accommodating portion 241, and a bottom portion 243 of the check valve accommodating portion 241. It is composed of a cylindrical skirt portion 244, and a liquid outlet hole 245 is provided at the center of the bottom portion 242 of the check valve housing portion 241.

In the piston body 41, the outer peripheral edge of the collar portion 242 is hooked on the hooking portion 173 provided on the inner peripheral surface of the inner support ring 76 of the operation head 70, whereby the operation head 7
It is fixed at 0. The outer peripheral surface of the lower end of the skirt portion 244 is in sliding contact with the inner peripheral surface of the inner cylindrical portion 131 of the first check valve 30 in an airtight manner, and the skirt portion 244 is slidable in the vertical direction in the inner cylindrical portion 131. ing. This piston body 4
In FIG. 1, the skirt portion 244 becomes the working portion.

The second check valve 60 is made of an elastic resin such as polyethylene and has a cup shape. The second check valve 60 includes a piston main body 4 and
No. 1 check valve accommodating portion 241 and holding cylinder 75 of the operation head 70
It is fixed by fitting in an airtight state between and.

The bottom of the second check valve 60 has a piston body 4
1 is a valve body portion 165 that opens and closes the liquid outlet hole 245 of the first check valve 30, and the valve body portion 165 includes the valve body portion 3 of the first check valve 30.
A plurality of passage holes 166 similar to the one passage hole 35 are formed. Normally, the valve body portion 165 is the bottom portion 2 of the piston body 41.
43, and the liquid outlet hole 245 and the passage hole 166 are closed.

In the dispensing container 1 of the fourth embodiment,
The first check valve 30 and the skirt portion 24 of the piston body 41
4 and the portion surrounded by the valve body portion 165 of the second check valve 60 constitutes the pump chamber 81, and the liquid outlet hole 245 and the second
An outflow passage 82 is formed by the internal space of the check valve 60 and the internal space of the spout pipe portion 171.

Also in the case of the dispensing container 1 of the fourth embodiment, the third
When the operation head 70 is pushed down as in the embodiment,
From the start of pushing down, the piston body 41 and the second check valve 60 are lowered together with the operation head 70. Then, when the pressure in the pump chamber 81 rises, this pressure causes the second
The valve body portion 165 of the check valve 60 is pushed up against its elasticity and separated from the bottom portion 243 of the piston body 41. As a result, the liquid outlet hole 245 of the piston body 41 and the passage hole 166 of the second check valve 60 are opened, whereby the outflow passage 8
2 opens, and the air or contents in the pump chamber 81 flows out from the spout 43 through the outflow passage 82.

In this embodiment, when the piston body 41 reaches near the bottom dead center, the bulging portion 133 of the piston body 41 hits the valve body portion 165 of the second check valve 60,
The valve body 165 is adapted to be pushed upward.

When the operation head 70 is elastically returned upward, the valve body portion 165 of the second check valve 60 is seated again on the bottom portion 243 of the piston body 41, and the inside of the pump chamber 81 becomes negative as the operation head 70 rises. Since the pressure is applied, the valve body portion 31 of the first check valve 30 is separated from the partition wall portion 11 of the top plate 10 as in the case of the third embodiment, and the liquid outlet hole 16 and the passage hole 35 are opened and accommodated. The air or contents in the part 7 is the pump chamber 81.
Is pumped up to.

[0086]

As described above, according to the present invention,
Since the operation member is guided by the inner guide ring and the inner support ring, and the outer guide ring and the outer support ring, there is an excellent effect that the operation member moves up and down very smoothly without tilting.

Further, since the bottom surface of the top plate has an upward slope from the peripheral portion toward the central liquid outlet, the air in the accommodating portion can be collected in the liquid outlet and all the air in the accommodating portion is exhausted. be able to.

In order to pour out the contents, when holding the pouring container upside down with one hand and pressing the operating member against the palm of the other hand to move the operating member in the direction of approaching the container body, When the cone-shaped portion of the operating member is attached to the palm so as to be in surface contact with the palm, there is an effect that the palm does not hurt when the pouring container is pressed.

In the case of pouring in this way, since the operating member has a cone shape with the spout at the top, the operating member is used when wiping the contents around the spout with the palm immediately after pouring. There is also the effect that it can be wiped clean without disturbing.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a pouring container according to a first embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of an upper portion of the pouring container according to the first embodiment.

FIG. 3 is an enlarged bottom view of the first check valve in the dispensing container according to the first embodiment.

FIG. 4 is an enlarged cross-sectional view of the upper part of the second embodiment of the dispensing container according to the present invention.

FIG. 5 is an enlarged cross-sectional view of the upper portion of a pouring container according to a third embodiment of the present invention.

FIG. 6 is an external perspective view of a second check valve in the dispensing container of the third embodiment.

FIG. 7 is an enlarged cross-sectional view of the upper portion of a pouring container according to a fourth embodiment of the present invention.

[Explanation of symbols]

1 pouring container 2 container body 5 movable bottom plate 7 accommodation 10 Top plate (top plate part) 16 Liquid outlet hole (liquid outlet) 17 Bottom 21 Inner guide ring 22 Outer guide ring 24 Bending part (separation prevention mechanism) 30 First check valve 40 pistons 41 Piston body 43 outlet 45 Collar part (action part) 47 valve seat 48 Projection part (action part) 60 Second check valve 70 Operation head (operation member) 71 Horizontal part 72 Cone part 73 Outer support ring 76 Inner support ring 77 Guide protrusion (separation prevention mechanism) 80 spring (biasing member) 81 Pump room 82 Outflow passage 111 outer guide ring 112 Guide protrusion (separation prevention mechanism) 113 Inner guide ring 132 Outer cylinder (inner guide ring) 144 sliding piece 171 Pour pipe section

Continuation of the front page (56) References Actual flat 5-68858 (JP, U) Actual flat 6-8277 (JP, U) Actual flat 5-54358 (JP, U) Actual flat 5-24569 (JP , U) Actual flat 4-23665 (JP, U) Actual flat 2-131980 (JP, U) Actual flat 3-43481 (JP, U) Utility model registration 2600818 (JP, Y2) Utility model registration 2509241 ( JP, Y2) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65D 83/76 B65D 47/34

Claims (3)

(57) [Claims] 1. A container body having a tubular shape; (b) a movable bottom plate slidably fitted to the container body in an airtight state; and (c) an upper portion of the container body closed to form a center. A top plate portion having a liquid outlet on its bottom surface and being inclined upward from the peripheral portion toward the liquid outlet; and (d) formed between the movable bottom plate and the top plate portion inside the container body. And (e) a pump chamber provided above the liquid outlet of the top plate portion, and (f) a liquid outlet of the top plate portion. A first check valve that allows an object to flow into the pump chamber and prevents the backflow from the pump chamber to the housing; and (g) is provided concentrically on the top plate and extends upright. An inner guide ring and an outer guide ring,
(H) is disposed above the top plate portion, covers almost the entire upper portion of the container body, and is installed so as to be vertically movable, and the upper surface has a cone shape having a horizontal portion at the top, and A spout is provided in the center, and a lower portion has a cylindrical inner support ring arranged outside the inner guide ring and a cylindrical outer support ring arranged outside the outer guide ring, An operating member provided with a separation prevention mechanism between the top plate portion, and (i) an operating portion that is interlocked with the operating member and moves up and down together with the operating member to expand or contract the volume of the pump chamber; A piston having an outflow passage that connects the pump chamber and a second check valve that allows the contents to flow from the pump chamber to the spout and prevent the backflow from the spout to the pump chamber. ,
(E) A biasing member that is disposed between the top plate portion and the operating member and biases the operating member upward, and pushes the operating member downward against the biasing member. By pouring out the contents in the pump chamber from the spout, by elastically returning the operating member upward, the contents accommodated in the accommodating section are pumped up to the pump chamber, and the pressure and the atmospheric pressure in the accommodating section are increased. The pouring container, wherein the movable bottom plate moves upward in the container body due to a force caused by the differential pressure. 2. A second check valve of the piston has an annular shape, and an outer peripheral portion of the second check valve slides vertically on a wall surface defining the pump chamber in an airtight state. The piston is provided with a piston main body which is fixed to an operating member and through which the second check valve is inserted, and the lower end of the piston main body is formed with the working portion that wraps around the lower side of the second check valve. A seat for the second check valve is formed on
The piston body and the second check valve are vertically movable relative to each other, and when the operation member is pushed downward, the valve seat separates from the second check valve to open the outflow passage, and the operation member The dispensing container according to claim 1, wherein when the valve is returned upward, the valve seat rises and the second check valve is seated on the valve seat to close the outflow passage. 3. The working portion of the piston has an annular shape, the inner side of the working portion forms a part of the outflow passage, and the outer peripheral portion of the working portion vertically moves the wall surface defining the pump chamber in an airtight state. The second check valve of the piston is operated by the hydraulic pressure in the pump chamber, and the second check valve acts as a part of the outflow passage. The pouring container according to claim 1, wherein the inside of the container is opened and closed.